LCOV - code coverage report
Current view: top level - disco/pack - fd_pack.c (source / functions) Hit Total Coverage
Test: cov.lcov Lines: 1620 1814 89.3 %
Date: 2026-08-31 04:29:48 Functions: 37 45 82.2 %

          Line data    Source code
       1             : #define FD_UNALIGNED_ACCESS_STYLE 0
       2             : #include "fd_pack.h"
       3             : #include "fd_pack_cost.h"
       4             : #include "fd_pack_bitset.h"
       5             : #include "fd_pack_unwritable.h"
       6             : #include "fd_chkdup.h"
       7             : #include "fd_pack_tip_prog_blacklist.h"
       8             : #include <math.h> /* for sqrt */
       9             : #include <stddef.h> /* for offsetof */
      10             : #include "../metrics/fd_metrics.h"
      11             : #include "../../util/fd_hash32.h"
      12             : 
      13             : #define FD_PACK_USE_NON_TEMPORAL_MEMCPY 1
      14             : 
      15             : /* inline fd_hash and specialize for 32 bytes */
      16             : static inline ulong
      17             : fd_hash_32( ulong        seed,
      18     1190841 :             void const * buf ) {
      19    14290092 : #define ROTATE_LEFT(x,r) (((x)<<(r)) | ((x)>>(64-(r))))
      20    16671774 : #define C1 (11400714785074694791UL)
      21    13099251 : #define C2 (14029467366897019727UL)
      22     1190841 : #define C3 ( 1609587929392839161UL)
      23     4763364 : #define C4 ( 9650029242287828579UL)
      24     1190841 :   uchar const * p    = ((uchar const *)buf);
      25             : 
      26     1190841 :   ulong w = seed + (C1+C2);
      27     1190841 :   ulong x = seed + C2;
      28     1190841 :   ulong y = seed;
      29     1190841 :   ulong z = seed - C1;
      30             : 
      31     1190841 :   w += FD_LOAD( ulong, p    )*C2; w = ROTATE_LEFT( w, 31 ); w *= C1;
      32     1190841 :   x += FD_LOAD( ulong, p+ 8 )*C2; x = ROTATE_LEFT( x, 31 ); x *= C1;
      33     1190841 :   y += FD_LOAD( ulong, p+16 )*C2; y = ROTATE_LEFT( y, 31 ); y *= C1;
      34     1190841 :   z += FD_LOAD( ulong, p+24 )*C2; z = ROTATE_LEFT( z, 31 ); z *= C1;
      35             : 
      36     1190841 :   ulong h = ROTATE_LEFT( w, 1 ) + ROTATE_LEFT( x, 7 ) + ROTATE_LEFT( y, 12 ) + ROTATE_LEFT( z, 18 );
      37             : 
      38     1190841 :   w *= C2; w = ROTATE_LEFT( w, 31 ); w *= C1; h ^= w; h = h*C1 + C4;
      39     1190841 :   x *= C2; x = ROTATE_LEFT( x, 31 ); x *= C1; h ^= x; h = h*C1 + C4;
      40     1190841 :   y *= C2; y = ROTATE_LEFT( y, 31 ); y *= C1; h ^= y; h = h*C1 + C4;
      41     1190841 :   z *= C2; z = ROTATE_LEFT( z, 31 ); z *= C1; h ^= z; h = h*C1 + C4;
      42             : 
      43     1190841 :   h += 32UL;
      44             : 
      45             :   /* Final avalanche */
      46     1190841 :   h ^= h >> 33;
      47     1190841 :   h *= C2;
      48     1190841 :   h ^= h >> 29;
      49     1190841 :   h *= C3;
      50     1190841 :   h ^= h >> 32;
      51             : 
      52     1190841 : #undef C4
      53     1190841 : #undef C3
      54     1190841 : #undef C2
      55     1190841 : #undef C1
      56     1190841 : #undef ROTATE_LEFT
      57             : 
      58     1190841 :   return h;
      59     1190841 : }
      60             : 
      61             : /* Declare a bunch of helper structs used for pack-internal data
      62             :    structures. */
      63             : typedef struct {
      64             :   fd_acct_addr_t key;
      65             : } wrapped_acct_t;
      66             : 
      67             : /* fd_pack_ord_txn_t: An fd_txn_p_t with information required to order
      68             :    it by priority. */
      69             : struct fd_pack_private_ord_txn {
      70             :   /* It's important that there be no padding here (asserted below)
      71             :      because the code casts back and forth from pointers to this element
      72             :      to pointers to the whole struct. */
      73             :   union {
      74             :     fd_txn_p_t   txn[1];  /* txn is an alias for txn_e->txnp */
      75             :     fd_txn_e_t   txn_e[1];
      76             :     fd_txn_e_t   _txn_e;  /* Non-array type needed for map_chain */
      77             :   };
      78             : 
      79             :   /* Since this struct can be in one of several trees, it's helpful to
      80             :      store which tree.  This should be one of the FD_ORD_TXN_ROOT_*
      81             :      values. */
      82             :   int root;
      83             : 
      84             :   /* The sig2txn map_chain fields */
      85             :   ushort sigmap_next;
      86             :   ushort sigmap_prev;
      87             : 
      88             :   /* Each transaction is inserted with an expiration "time."  This code
      89             :      doesn't care about the units (blocks, rdtsc tick, ns, etc.), and
      90             :      doesn't require transactions to be inserted in expiration date
      91             :      order. */
      92             :   ulong expires_at;
      93             :   /* expq_idx: When this object is part of one of the treaps, it's
      94             :      also in the expiration priority queue.  This field (which is
      95             :      manipulated behind the scenes by the fd_prq code) stores where so
      96             :      that if we delete this transaction, we can also delete it from the
      97             :      expiration priority queue. */
      98             :   ulong expq_idx;
      99             : 
     100             :   /* The noncemap map_chain fields */
     101             :   ushort noncemap_next;
     102             :   ushort noncemap_prev;
     103             : 
     104             :   /* We want rewards*compute_est to fit in a ulong so that r1/c1 < r2/c2 can be
     105             :      computed as r1*c2 < r2*c1, with the product fitting in a ulong.
     106             :      compute_est has a small natural limit of mid-20 bits. rewards doesn't have
     107             :      a natural limit, so there is some argument to be made for raising the
     108             :      limit for rewards to 40ish bits. The struct has better packing with
     109             :      uint/uint though. */
     110             :   uint                __attribute__((aligned(64))) /* We want the treap fields and the bitsets
     111             :                                                        to be on the same double cache line pair */
     112             :                rewards;     /* in Lamports */
     113             :   uint         compute_est; /* in compute units */
     114             : 
     115             :   /* The treap fields */
     116             :   ushort left;
     117             :   ushort right;
     118             :   ushort parent;
     119             :   ushort prio;
     120             :   ushort prev;
     121             :   ushort next;
     122             : 
     123             :   /* skip: if we skip this transaction more than FD_PACK_SKIP_CNT times
     124             :      for reasons that won't go away until the end of the block, then we
     125             :      want to skip it very quickly.  If skip is in [1, FD_PACK_SKIP_CNT],
     126             :      then that means we have to skip it `skip` more times before taking
     127             :      any action.  If skip>FD_PACK_SKIP_CNT, then it is a compressed slot
     128             :      number during which it should be skipped, and we'll skip it until
     129             :      the compressed slot reaches a new value.  skip is never 0. */
     130             :   ushort skip;
     131             : 
     132             :   FD_PACK_BITSET_DECLARE( rw_bitset ); /* all accts this txn references */
     133             :   FD_PACK_BITSET_DECLARE(  w_bitset ); /* accts this txn write-locks    */
     134             : 
     135             : };
     136             : typedef struct fd_pack_private_ord_txn fd_pack_ord_txn_t;
     137             : 
     138             : /* We require that the payload starts at byte 0 of fd_pack_ord_txn_t,
     139             :    because we cast back and forth between fd_txn_p_t* and
     140             :    fd_pack_ord_txn_t*.
     141             :    GCC and Clang seem to disagree on the rules of offsetof. */
     142             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, txn          )==0UL, fd_pack_ord_txn_t );
     143             : #if FD_USING_CLANG
     144             : FD_STATIC_ASSERT( offsetof( fd_txn_p_t,             payload )==0UL, fd_pack_ord_txn_t );
     145             : #else
     146             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, txn->payload )==0UL, fd_pack_ord_txn_t );
     147             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, txn_e->txnp  )==0UL, fd_pack_ord_txn_t );
     148             : #endif
     149             : 
     150             : /* FD_ORD_TXN_ROOT is essentially a small union packed into an int.  The low
     151             :    byte is the "tag".  The higher 3 bytes depend on the low byte. */
     152       28599 : #define FD_ORD_TXN_ROOT_TAG_MASK        0xFF
     153      839472 : #define FD_ORD_TXN_ROOT_FREE            0
     154       37112 : #define FD_ORD_TXN_ROOT_PENDING         1
     155       29433 : #define FD_ORD_TXN_ROOT_PENDING_VOTE    2
     156        1065 : #define FD_ORD_TXN_ROOT_PENDING_BUNDLE  3
     157       30067 : #define FD_ORD_TXN_ROOT_PENALTY( idx ) (4 | (idx)<<8)
     158             : 
     159             : /* if root & TAG_MASK == PENALTY, then PENALTY_ACCT_IDX(root) gives the index
     160             :    in the transaction's list of account addresses of which penalty treap the
     161             :    transaction is in. */
     162             : #define FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( root ) (((root) & 0xFF00)>>8)
     163             : 
     164      175062 : #define FD_PACK_IN_USE_WRITABLE    (0x8000000000000000UL)
     165      141055 : #define FD_PACK_IN_USE_BIT_CLEARED (0x4000000000000000UL)
     166             : 
     167             : /* Each non-empty microblock we schedule also has an overhead of 48
     168             :    bytes that counts towards shed limits.  That comes from the 32 byte
     169             :    hash, the hash count (8 bytes) and the transaction count (8 bytes).
     170             :    We don't have to pay this overhead if the microblock is empty, since
     171             :    those microblocks get dropped. */
     172       29784 : #define MICROBLOCK_DATA_OVERHEAD 48UL
     173             : 
     174             : FD_STATIC_ASSERT( sizeof(fd_acct_addr_t)==sizeof(fd_pubkey_t), "" );
     175             : 
     176             : /* fd_pack_expq_t: An element of an fd_prq to sort the transactions by
     177             :    timeout.  This structure has several invariants for entries
     178             :    corresponding to pending transactions:
     179             :      expires_at == txn->expires_at
     180             :      txn->exp_prq_idx is the index of this structure
     181             :    Notice that prq is an array-based heap, which means the indexes of
     182             :    elements change.  The PRQ_TMP_ST macro is hijacked to keep that
     183             :    invariant up to date.
     184             : 
     185             :    Note: this could be easier if fd_heap supported deleting from the
     186             :    middle, but that's not possible with the current design of fd_heap,
     187             :    which omits a parent pointer for improved performance. */
     188             : struct fd_pack_expq {
     189             :   ulong               expires_at;
     190             :   fd_pack_ord_txn_t * txn;
     191             : };
     192             : typedef struct fd_pack_expq fd_pack_expq_t;
     193             : 
     194             : 
     195             : /* fd_pack_bitset_acct_mapping_t: An element of an fd_map_dynamic that
     196             :    maps an account address to the number of transactions that are
     197             :    referencing it and the bit that is reserved to indicate it in the
     198             :    bitset, if any. */
     199             : struct fd_pack_bitset_acct_mapping {
     200             :   fd_acct_addr_t key; /* account address */
     201             :   ulong          ref_cnt;
     202             : 
     203             :   /* first_instance and first_instance_was_write are only valid when
     204             :      bit==FD_PACK_BITSET_FIRST_INSTANCE, which is set when ref_cnt
     205             :      transitions from 0 to 1.  These just exist to implement the
     206             :      optimization that accounts referenced a single time aren't
     207             :      allocated a bit, but this seems to be an important optimization. */
     208             :   fd_pack_ord_txn_t * first_instance;
     209             :   int                 first_instance_was_write;
     210             : 
     211             :   /* bit is in [0, FD_PACK_BITSET_MAX) U
     212             :      { FD_PACK_BITSET_FIRST_INSTANCE, FD_PACK_BITSET_SLOWPATH }. */
     213             :   ushort              bit;
     214             : };
     215             : typedef struct fd_pack_bitset_acct_mapping fd_pack_bitset_acct_mapping_t;
     216             : 
     217             : 
     218             : struct fd_pack_wcost_ele {
     219             :   fd_acct_addr_t key; /* account address */
     220             :   ulong          total_cost;
     221             :   union {
     222             :     uint         map_next;
     223             :     uint         pool_next;
     224             :   };
     225             :   uint           map_prev;
     226             :   uint           dlist_next;
     227             :   uint           dlist_prev;
     228             : };
     229             : typedef struct fd_pack_wcost_ele fd_pack_wcost_ele_t;
     230             : 
     231             : 
     232             : /* pack maintains a small state machine related to initializer bundles.
     233             :    See the header file for more details about it, but it's
     234             :    also summarized here:
     235             :    * NOT_INITIALIZED: The starting state for each block
     236             :    * PENDING: an initializer bundle has been scheduled, but pack has
     237             :      not observed its result yet, so we don't know if it was successful
     238             :      or not.
     239             :    * FAILED: the most recently scheduled initializer bundle failed
     240             :      for reasons other than already being executed.  Most commonly, this
     241             :      could be because of a bug in the code that generated the
     242             :      initializer bundle, a lack of fee payer balance, or an expired
     243             :      blockhash.
     244             :    * READY: the most recently scheduled initialization bundle succeeded
     245             :      and normal bundles can be scheduled in this slot. */
     246          12 : #define FD_PACK_IB_STATE_NOT_INITIALIZED 0
     247           0 : #define FD_PACK_IB_STATE_PENDING         1
     248           0 : #define FD_PACK_IB_STATE_FAILED          2
     249           3 : #define FD_PACK_IB_STATE_READY           3
     250             : 
     251             : 
     252             : /* Returns 1 if x.rewards/x.compute < y.rewards/y.compute. Not robust. */
     253      126822 : #define COMPARE_WORSE(x,y) ( ((ulong)((x)->rewards)*(ulong)((y)->compute_est)) < ((ulong)((y)->rewards)*(ulong)((x)->compute_est)) )
     254             : 
     255             : /* Declare all the data structures */
     256             : 
     257             : 
     258             : /* Define the big max-"heap" that we pull transactions off to schedule.
     259             :    The priority is given by reward/compute.  We may want to add in some
     260             :    additional terms at a later point.  In order to cheaply remove nodes,
     261             :    we actually use a treap.  */
     262             : #define POOL_NAME       trp_pool
     263         882 : #define POOL_T          fd_pack_ord_txn_t
     264             : #define POOL_IDX_T      ushort
     265      418617 : #define POOL_NEXT       parent
     266             : #include "../../util/tmpl/fd_pool.c"
     267             : 
     268             : #define TREAP_T         fd_pack_ord_txn_t
     269             : #define TREAP_NAME      treap
     270             : #define TREAP_QUERY_T   void *                                         /* We don't use query ... */
     271             : #define TREAP_CMP(a,b)  (__extension__({ (void)(a); (void)(b); -1; })) /* which means we don't need to give a real
     272             :                                                                           implementation to cmp either */
     273      466806 : #define TREAP_IDX_T     ushort
     274             : #define TREAP_OPTIMIZE_ITERATION 1
     275      126822 : #define TREAP_LT        COMPARE_WORSE
     276             : #include "../../util/tmpl/fd_treap.c"
     277             : 
     278             : 
     279             : #define MAP_NAME              sig2txn
     280             : #define MAP_OPTIMIZE_RANDOM_ACCESS_REMOVAL 1
     281             : #define MAP_MULTI              1
     282       34419 : #define MAP_ELE_T              fd_pack_ord_txn_t
     283       57513 : #define MAP_PREV               sigmap_prev
     284       80163 : #define MAP_NEXT               sigmap_next
     285       38955 : #define MAP_IDX_T              ushort
     286             : 
     287             : #define MAP_KEY_T              fd_txn_e_t
     288       67433 : #define MAP_KEY                _txn_e
     289       70647 : #define TXNE_TO_SIG(ptr)       (__extension__({ fd_txn_p_t const * __p = (ptr)->txnp; __p->payload + TXN(__p)->signature_off;  }))
     290        1070 : #define MAP_KEY_EQ(k0,k1)      (!memcmp( TXNE_TO_SIG(k0), TXNE_TO_SIG(k1), FD_TXN_SIGNATURE_SZ) )
     291       68507 : #define MAP_KEY_HASH(key,seed) fd_hash( (seed), TXNE_TO_SIG(key), 64UL )
     292             : #include "../../util/tmpl/fd_map_chain.c"
     293             : 
     294             : 
     295             : /* noncemap: A map from (nonce account, nonce authority, recent
     296             :    blockhash) to a durable nonce transaction containing it.  We only
     297             :    want to allow one transaction in the pool at a time with a given
     298             :    (nonce account, recent blockhash) tuple value.  The question is: can
     299             :    adding this limitation cause us to throw out potentially valuable
     300             :    transaction?  The answer is yes, but only very rarely, and the
     301             :    savings are worth it.  Suppose we have durable nonce transactions t1
     302             :    and t2 that advance the same nonce account and have the same value
     303             :    for the recent blockhash.
     304             : 
     305             :    - If t1 lands on chain, then it will advance the nonce account, and
     306             :    t2 will certainly not land on chain.
     307             :    - If t1 fails with AlreadyExecuted, that means the nonce account was
     308             :    advanced when t1 landed in a previous block, so t2 will certainly not
     309             :    land on chain.
     310             :    - If t1 fails with BlockhashNotFound, then the nonce account was
     311             :    advanced in some previous transaction, so again, t2 will certainly
     312             :    not land on chain.
     313             :    - If t1 does not land on chain because of an issue with the fee
     314             :    payer, it's possible that t2 could land on chain if it used a
     315             :    different fee payer, but historical data shows this is unlikely.
     316             :    - If t1 does not land on chain because it is part of a bundle that
     317             :    fails for an unrelated reason, it's possible that t2 could land on
     318             :    chain, but again, historical data says this is rare.
     319             : 
     320             :    We need to include the nonce authority in the hash to prevent one
     321             :    user from being able to DoS another user. */
     322             : 
     323             : typedef struct {
     324             :   uchar const * recent_blockhash;
     325             :   fd_acct_addr_t const * nonce_acct;
     326             :   fd_acct_addr_t const * nonce_auth;
     327             : } noncemap_extract_t;
     328             : 
     329             : /* k must be a valid, durable nonce transaction.  No error checking is
     330             :    done. */
     331             : static inline void
     332             : noncemap_extract( fd_txn_e_t const   * k,
     333        3361 :                   noncemap_extract_t * out ) {
     334        3361 :   fd_txn_t const * txn = TXN(k->txnp);
     335        3361 :   out->recent_blockhash = fd_txn_get_recent_blockhash( txn, k->txnp->payload );
     336             : 
     337        3361 :   ulong nonce_idx = k->txnp->payload[ txn->instr[ 0 ].acct_off+0 ];
     338        3361 :   ulong autho_idx = k->txnp->payload[ txn->instr[ 0 ].acct_off+2 ];
     339             : 
     340        3361 :   ulong imm_cnt = fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
     341        3361 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, k->txnp->payload );
     342        3361 :   fd_acct_addr_t const * alt_adj = k->alt_accts - imm_cnt;
     343        3361 :   out->nonce_acct = fd_ptr_if( nonce_idx<imm_cnt, accts, alt_adj )+nonce_idx;
     344             :   /* The nonce authority must be a signer, so it must be an immediate
     345             :      account. */
     346        3361 :   out->nonce_auth = accts+autho_idx;
     347        3361 : }
     348             : 
     349             : static inline int
     350             : noncemap_key_eq_internal( fd_txn_e_t const * k0,
     351         166 :                           fd_txn_e_t const * k1 ) {
     352         166 :   noncemap_extract_t e0[1], e1[1];
     353         166 :   noncemap_extract( k0, e0 );
     354         166 :   noncemap_extract( k1, e1 );
     355             : 
     356         166 :   if( FD_UNLIKELY( memcmp( e0->recent_blockhash, e1->recent_blockhash, 32UL ) ) ) return 0;
     357          63 :   if( FD_UNLIKELY( memcmp( e0->nonce_acct,       e1->nonce_acct,       32UL ) ) ) return 0;
     358          63 :   if( FD_UNLIKELY( memcmp( e0->nonce_auth,       e1->nonce_auth,       32UL ) ) ) return 0;
     359          63 :   return 1;
     360          63 : }
     361             : 
     362             : #if FD_HAS_INT128
     363             : 
     364             : /* unrolled xxHash3 */
     365             : 
     366             : static inline ulong
     367             : noncemap_key_hash_internal( ulong              seed,
     368        3029 :                             fd_txn_e_t const * k ) {
     369        3029 :   noncemap_extract_t e[1];
     370        3029 :   noncemap_extract( k, e );
     371             : 
     372        3029 :   ulong k0 = FD_LOAD( ulong, e->recent_blockhash+ 0 );
     373        3029 :   ulong k1 = FD_LOAD( ulong, e->recent_blockhash+ 8 );
     374        3029 :   ulong k2 = FD_LOAD( ulong, e->recent_blockhash+16 );
     375        3029 :   ulong k3 = FD_LOAD( ulong, e->recent_blockhash+24 );
     376        3029 :   ulong k4 = FD_LOAD( ulong, e->nonce_acct->b   + 0 );
     377        3029 :   ulong k5 = FD_LOAD( ulong, e->nonce_acct->b   + 8 );
     378        3029 :   ulong k6 = FD_LOAD( ulong, e->nonce_acct->b   +16 );
     379        3029 :   ulong k7 = FD_LOAD( ulong, e->nonce_acct->b   +24 );
     380        3029 :   ulong k8 = FD_LOAD( ulong, e->nonce_auth->b   + 0 );
     381        3029 :   ulong k9 = FD_LOAD( ulong, e->nonce_auth->b   + 8 );
     382        3029 :   ulong ka = FD_LOAD( ulong, e->nonce_auth->b   +16 );
     383        3029 :   ulong kb = FD_LOAD( ulong, e->nonce_auth->b   +24 );
     384             : 
     385        3029 :   ulong acc = 96 * 0x9E3779B185EBCA87ULL;
     386        3029 :   acc += fd_xxh3_mix16b( k4, k5, 0xcb00c391bb52283cUL, 0xa32e531b8b65d088UL, seed );
     387        3029 :   acc += fd_xxh3_mix16b( k6, k7, 0x4ef90da297486471UL, 0xd8acdea946ef1938UL, seed );
     388        3029 :   acc += fd_xxh3_mix16b( k2, k3, 0x78e5c0cc4ee679cbUL, 0x2172ffcc7dd05a82UL, seed );
     389        3029 :   acc += fd_xxh3_mix16b( k8, k9, 0x8e2443f7744608b8UL, 0x4c263a81e69035e0UL, seed );
     390        3029 :   acc += fd_xxh3_mix16b( k0, k1, 0xbe4ba423396cfeb8UL, 0x1cad21f72c81017cUL, seed );
     391        3029 :   acc += fd_xxh3_mix16b( ka, kb, 0xdb979083e96dd4deUL, 0x1f67b3b7a4a44072UL, seed );
     392        3029 :   acc = acc ^ (acc >> 37);
     393        3029 :   acc *= 0x165667919E3779F9ULL;
     394        3029 :   acc = acc ^ (acc >> 32);
     395        3029 :   return acc;
     396        3029 : }
     397             : 
     398             : #else
     399             : 
     400             : static inline ulong
     401             : noncemap_key_hash_internal( ulong              seed,
     402             :                             fd_txn_e_t const * k ) {
     403             :   noncemap_extract_t e[1];
     404             :   noncemap_extract( k, e );
     405             : 
     406             :   uchar buf[ 96 ];
     407             :   memcpy( buf,    e->recent_blockhash, 32UL );
     408             :   memcpy( buf+32, e->nonce_acct->b,     32UL );
     409             :   memcpy( buf+64, e->nonce_auth->b,     32UL );
     410             :   return fd_hash( seed, buf, 96UL );
     411             : }
     412             : 
     413             : #endif
     414             : 
     415             : #define MAP_NAME               noncemap
     416             : #define MAP_OPTIMIZE_RANDOM_ACCESS_REMOVAL 1
     417             : #define MAP_MULTI              0
     418         375 : #define MAP_ELE_T              fd_pack_ord_txn_t
     419         564 : #define MAP_PREV               noncemap_prev
     420        1075 : #define MAP_NEXT               noncemap_next
     421        3945 : #define MAP_IDX_T              ushort
     422             : #define MAP_KEY_T              fd_txn_e_t
     423         749 : #define MAP_KEY                _txn_e
     424         166 : #define MAP_KEY_EQ(k0,k1)      noncemap_key_eq_internal( (k0), (k1) )
     425        3029 : #define MAP_KEY_HASH(key,seed) noncemap_key_hash_internal( (seed), (key) )
     426             : #include "../../util/tmpl/fd_map_chain.c"
     427             : 
     428             : 
     429             : static const fd_acct_addr_t null_addr = { 0 };
     430             : 
     431             : #define MAP_NAME              acct_uses
     432      503769 : #define MAP_T                 fd_pack_addr_use_t
     433      611372 : #define MAP_KEY_T             fd_acct_addr_t
     434    12688666 : #define MAP_KEY_NULL          null_addr
     435             : #if FD_HAS_AVX
     436      611372 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     437             : #else
     438             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     439             : #endif
     440      386530 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     441             : #define MAP_KEY_EQUAL_IS_SLOW 1
     442             : #define MAP_MEMOIZE           0
     443      502136 : #define MAP_KEY_HASH(key,s)   ((uint)fd_hash_32( s, (key).b ))
     444             : #include "../../util/tmpl/fd_map_dynamic.c"
     445             : 
     446             : #define MAP_NAME              wcost_map
     447        8154 : #define MAP_ELE_T             fd_pack_wcost_ele_t
     448             : #define MAP_KEY_T             fd_acct_addr_t
     449      220711 : #define MAP_IDX_T             uint
     450       28010 : #define MAP_NEXT              map_next
     451       19576 : #define MAP_PREV              map_prev
     452             : #define MAP_KEY_NULL          null_addr
     453             : #define MAP_OPTIMIZE_RANDOM_ACCESS_REMOVAL 1
     454       95860 : #define MAP_KEY_EQ(k0,k1)     (!memcmp((k0)->b,(k1)->b, FD_TXN_ACCT_ADDR_SZ))
     455      161526 : #define MAP_KEY_HASH(key,s)   ((uint)fd_hash_32( s, (key)->b ))
     456             : #include "../../util/tmpl/fd_map_chain.c"
     457             : 
     458             : #define POOL_NAME             wcost_pool
     459         588 : #define POOL_T                fd_pack_wcost_ele_t
     460             : #define POOL_IDX_T            uint
     461    47067427 : #define POOL_NEXT             pool_next
     462             : #include "../../util/tmpl/fd_pool.c"
     463             : 
     464             : #define DLIST_NAME            wcost_dlist
     465             : #define DLIST_ELE_T           fd_pack_wcost_ele_t
     466             : #define DLIST_IDX_T           uint
     467       27427 : #define DLIST_NEXT            dlist_next
     468       19276 : #define DLIST_PREV            dlist_prev
     469             : #include "../../util/tmpl/fd_dlist.c"
     470             : 
     471             : #define MAP_NAME              bitset_map
     472      455635 : #define MAP_T                 fd_pack_bitset_acct_mapping_t
     473      534765 : #define MAP_KEY_T             fd_acct_addr_t
     474    48666842 : #define MAP_KEY_NULL          null_addr
     475             : #if FD_HAS_AVX
     476    63400173 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     477             : #else
     478             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     479             : #endif
     480      370682 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     481             : #define MAP_KEY_EQUAL_IS_SLOW 1
     482             : #define MAP_MEMOIZE           0
     483      454320 : #define MAP_KEY_HASH(key,s)   ((uint)fd_hash_32( s, (key).b ))
     484             : #include "../../util/tmpl/fd_map_dynamic.c"
     485             : 
     486             : 
     487             : #define MAP_NAME              acct_blocklist
     488      225954 : #define MAP_T                 wrapped_acct_t
     489             : /* Add 1 to the slot cnt to ensure the map is sparse even at capacity */
     490      235563 : #define MAP_LG_SLOT_CNT       (FD_PACK_ACCT_BLOCKLIST_LG_MAX+1)
     491      225663 : #define MAP_KEY_T             fd_acct_addr_t
     492        9600 : #define MAP_KEY_NULL          null_addr
     493             : #if FD_HAS_AVX
     494      452877 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     495             : #else
     496             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     497             : #endif
     498      225600 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     499             : /* It would be nice if this were seeded, but since fd_map doesn't have
     500             :    any auxiliary data, there's not a clear place to store the seed.
     501             :    It's okay though, because the insert process is trusted, since it
     502             :    comes from operator config. */
     503      225654 : #define MAP_KEY_HASH(key)     ((uint)fd_ulong_hash( fd_ulong_load_8( (key).b ) ))
     504             : #define MAP_KEY_EQUAL_IS_SLOW 1
     505             : #define MAP_MEMOIZE           0
     506             : #define MAX_QUERY_OPT         2 /* rare hits */
     507             : #include "../../util/tmpl/fd_map.c"
     508             : 
     509             : /* Since transactions can also expire, we also maintain a parallel
     510             :    priority queue.  This means elements are simultaneously part of the
     511             :    treap (ordered by priority) and the expiration queue (ordered by
     512             :    expiration).  It's tempting to use the priority field of the treap
     513             :    for this purpose, but that can result in degenerate treaps in some
     514             :    cases. */
     515             : #define PRQ_NAME             expq
     516      112815 : #define PRQ_T                fd_pack_expq_t
     517       69300 : #define PRQ_TIMEOUT_T        ulong
     518       69300 : #define PRQ_TIMEOUT          expires_at
     519       54210 : #define PRQ_TMP_ST(p,t)      do {                                   \
     520       54210 :                                (p)[0] = (t);                        \
     521       54210 :                                t.txn->expq_idx = (ulong)((p)-heap); \
     522       54210 :                              } while( 0 )
     523             : #include "../../util/tmpl/fd_prq.c"
     524             : 
     525             : /* With realistic traffic patterns, we often see many, many transactions
     526             :    competing for the same writable account.  Since only one of these can
     527             :    execute at a time, we sometimes waste lots of scheduling time going
     528             :    through them one at a time.  To combat that, when a transaction
     529             :    writes to an account with more than PENALTY_TREAP_THRESHOLD
     530             :    references (readers or writers), instead of inserting it into the
     531             :    main treap, we insert it into a penalty treap for that specific hot
     532             :    account address.  These transactions are not immediately available
     533             :    for scheduling.  Then, when a transaction that writes to the hot
     534             :    address completes, we move the most lucrative transaction from the
     535             :    penalty treap to the main treap, making it available for scheduling.
     536             :    This policy may slightly violate the price-time priority scheduling
     537             :    approach pack normally uses: if the most lucrative transaction
     538             :    competing for hot state arrives after PENALTY_TREAP_THRESHOLD has
     539             :    been hit, it may be scheduled second instead of first.  However, if
     540             :    the account is in use at the time the new transaction arrives, it
     541             :    will be scheduled next, as desired.  This minor difference seems
     542             :    reasonable to reduce complexity.
     543             : 
     544             :    fd_pack_penalty_treap is one account-specific penalty treap.  All the
     545             :    transactions in the penalty_treap treap write to key.
     546             : 
     547             :    penalty_map is the fd_map_dynamic that maps accounts to their
     548             :    respective penalty treaps. */
     549             : struct fd_pack_penalty_treap {
     550             :   fd_acct_addr_t key;
     551             :   treap_t penalty_treap[1];
     552             : };
     553             : typedef struct fd_pack_penalty_treap fd_pack_penalty_treap_t;
     554             : 
     555             : #define MAP_NAME              penalty_map
     556       73450 : #define MAP_T                 fd_pack_penalty_treap_t
     557       72881 : #define MAP_KEY_T             fd_acct_addr_t
     558      759189 : #define MAP_KEY_NULL          null_addr
     559             : #if FD_HAS_AVX
     560     1055153 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     561             : #else
     562             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     563             : #endif
     564       72839 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     565             : #define MAP_KEY_EQUAL_IS_SLOW 1
     566             : #define MAP_MEMOIZE           0
     567       72859 : #define MAP_KEY_HASH(key,s)   ((uint)fd_hash_32( s, (key).b ))
     568             : #include "../../util/tmpl/fd_map_dynamic.c"
     569             : 
     570             : /* PENALTY_TREAP_THRESHOLD: How many references to an account do we
     571             :    allow before subsequent transactions that write to the account go to
     572             :    the penalty treap. */
     573      172347 : #define PENALTY_TREAP_THRESHOLD 64UL
     574             : 
     575             : 
     576             : /* FD_PACK_SKIP_CNT: How many times we'll skip a transaction (for
     577             :    reasons other than account conflicts) before we won't consider it
     578             :    until the next slot.  For performance reasons, this doesn't reset at
     579             :    the end of a slot, so e.g. we might skip twice in slot 1, then three
     580             :    times in slot 2, which would be enough to prevent considering it
     581             :    until slot 3.  The main reason this is not 1 is that some skips that
     582             :    seem permanent until the end of the slot can actually go away based
     583             :    on rebates. */
     584       37485 : #define FD_PACK_SKIP_CNT 50UL
     585             : 
     586             : /* Finally, we can now declare the main pack data structure */
     587             : struct fd_pack_private {
     588             :   ulong      pack_depth;
     589             :   ulong      bundle_meta_sz; /* if 0, bundles are disabled */
     590             :   ulong      bank_tile_cnt;
     591             : 
     592             :   fd_pack_limits_t lim[1];
     593             : 
     594             :   ulong      pending_txn_cnt; /* Summed across all treaps */
     595             :   ulong      microblock_cnt; /* How many microblocks have we
     596             :                                 generated in this block? */
     597             :   ulong      data_bytes_consumed; /* How much data is in this block so
     598             :                                      far ? */
     599             :   /* There's a limit on the total amount that transactions in a block
     600             :      can allocate.  How much of that limit have we consumed? */
     601             :   ulong      alloc_consumed;
     602             : 
     603             :   /* counters / gauge for schedule outcome enums */
     604             :   ulong      sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_CNT ];
     605             : 
     606             :   fd_rng_t * rng;
     607             : 
     608             :   ulong      cumulative_block_cost;
     609             :   ulong      cumulative_vote_cost;
     610             : 
     611             :   /* expire_before: Any transactions with expires_at strictly less than
     612             :      the current expire_before are removed from the available pending
     613             :      transaction.  Here, "expire" is used as a verb: cause all
     614             :      transactions before this time to expire. */
     615             :   ulong      expire_before;
     616             : 
     617             :   /* outstanding_microblock_mask: a bitmask indicating which banking
     618             :      tiles have outstanding microblocks, i.e. fd_pack has generated a
     619             :      microblock for that banking tile and the banking tile has not yet
     620             :      notified fd_pack that it has completed it. */
     621             :   ulong      outstanding_microblock_mask;
     622             : 
     623             :   /* The actual footprint for the pool and maps is allocated
     624             :      in the same order in which they are declared immediately following
     625             :      the struct.  I.e. these pointers point to memory not far after the
     626             :      struct.  The trees are just pointers into the pool so don't take up
     627             :      more space. */
     628             : 
     629             :   fd_pack_ord_txn_t * pool;
     630             : 
     631             :   /* Treaps (sorted by priority) of pending transactions.  We store the
     632             :      pending simple votes and transactions that come from bundles
     633             :      separately. */
     634             :   treap_t pending[1];
     635             :   treap_t pending_votes[1];
     636             :   treap_t pending_bundles[1];
     637             : 
     638             :   /* penalty_treaps: an fd_map_dynamic mapping hotly contended account
     639             :      addresses to treaps of transactions that write to them.  We try not
     640             :      to allow more than roughly PENALTY_TREAP_THRESHOLD transactions in
     641             :      the main treap that write to each account, though this is not
     642             :      exact. */
     643             :   fd_pack_penalty_treap_t * penalty_treaps;
     644             : 
     645             :   /* initializer_bundle_state: The current state of the initialization
     646             :      bundle state machine.  One of the FD_PACK_IB_STATE_* values.  See
     647             :      the long comment in the header and the comments attached to the
     648             :      respective values for a discussion of what each state means and the
     649             :      transitions between them. */
     650             :   int   initializer_bundle_state;
     651             : 
     652             :   /* relative_bundle_idx: the number of bundles that have been inserted
     653             :      since the last time pending_bundles was empty.  See the long
     654             :      comment about encoding this index in the rewards field of each
     655             :      transaction in the bundle, and why it is important that this reset
     656             :      to 0 as frequently as possible. */
     657             :   ulong relative_bundle_idx;
     658             : 
     659             :   /* pending{_votes}_smallest: keep a conservative estimate of the
     660             :      smallest transaction (by cost units and by bytes) in each heap.
     661             :      Both CUs and bytes should be set to ULONG_MAX is the treap is
     662             :      empty. */
     663             :   fd_pack_smallest_t pending_smallest[1];
     664             :   fd_pack_smallest_t pending_votes_smallest[1];
     665             : 
     666             :   /* expiration_q: At the same time that a transaction is in exactly one
     667             :      of the above treaps, it is also in the expiration queue, sorted by
     668             :      its expiration time.  This enables deleting all transactions that
     669             :      have expired, regardless of which treap they are in. */
     670             :   fd_pack_expq_t * expiration_q;
     671             : 
     672             :   /* acct_in_use: Map from account address to bitmask indicating which
     673             :      bank tiles are using the account and whether that use is read or
     674             :      write (msb). */
     675             :   fd_pack_addr_use_t   * acct_in_use;
     676             : 
     677             :   /* bitset_{w, rw}_in_use stores a subset of the information in
     678             :      acct_in_use using the compressed set format explained at the top of
     679             :      this file.  rw_in_use stores accounts in use for read or write
     680             :      while w_in_use stores only those in use for write. */
     681             :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
     682             :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
     683             : 
     684             :   /* writer_costs: Map (fd_map_chain) from account addresses to the sum
     685             :      of costs of transactions that write to the account.  Used for
     686             :      enforcing limits on the max write cost per account per block. */
     687             :   wcost_map_t   * writer_costs;
     688             : 
     689             :   /* written_list: At the end of every slot, we have to clear out
     690             :      writer_costs.  The map is large, but typically very sparsely
     691             :      populated.  As an optimization, we keep a doubly linked list of the
     692             :      elements actually used */
     693             :   wcost_dlist_t  written_list[1];
     694             : 
     695             :   /* writers: This is the fd_pool that backs writer_costs and
     696             :      written_list.  Each element is either in writers (as a fd_pool) OR
     697             :      in both writer_costs and written_list. */
     698             :   fd_pack_wcost_ele_t  * writers;
     699             : 
     700             :   /* top_writers: A simple max heap of the top 5 writers in the slot,
     701             :      used by downstream consumers for monitoring purposes. */
     702             :   fd_pack_addr_use_t top_writers[ FD_PACK_TOP_WRITERS_CNT ];
     703             : 
     704             :   /* At initialization time, the caller can configure a blocklist of
     705             :      accounts.  Any transaction that includes one of these accounts will
     706             :      be rejected.  This is an fd_map, and it's effectively const. */
     707             :   wrapped_acct_t        acct_blocklist[ 2*FD_PACK_ACCT_BLOCKLIST_MAX ];
     708             : 
     709             :   /* Noncemap is a map_chain that maps from tuples (nonce account,
     710             :      recent blockhash value, nonce authority) to a transaction.  This
     711             :      map stores exactly the transactions in pool that have the nonce
     712             :      flag set. */
     713             :   noncemap_t * noncemap;
     714             : 
     715             :   sig2txn_t * signature_map; /* Stores pointers into pool for deleting by signature */
     716             : 
     717             :   /* bundle_temp_map: A fd_map_dynamic (although it could be an fd_map)
     718             :      used during fd_pack_try_schedule_bundle to store information about
     719             :      what accounts are used by transactions in the bundle.  It's empty
     720             :      (in a map sense) outside of calls to try_schedule_bundle, and each
     721             :      call to try_schedule_bundle clears it after use.  If bundles are
     722             :      disabled, this is a valid fd_map_dynamic, but it's as small as
     723             :      convenient and remains empty. */
     724             :   fd_pack_addr_use_t * bundle_temp_map;
     725             : 
     726             : 
     727             :   /* use_by_bank: An array of size (max_txn_per_microblock *
     728             :      FD_TXN_ACCT_ADDR_MAX) for each banking tile.  Only the MSB of
     729             :      in_use_by is relevant.  Addressed use_by_bank[i][j] where i is in
     730             :      [0, bank_tile_cnt) and j is in [0, use_by_bank_cnt[i]).  Used
     731             :      mostly for clearing the proper bits of acct_in_use when a
     732             :      microblock finishes.
     733             : 
     734             :      use_by_bank_txn: indexed [i][j], where i is in [0, bank_tile_cnt)
     735             :      and j is in [0, max_txn_per_microblock).  Transaction j in the
     736             :      microblock currently scheduled to bank i uses account addresses in
     737             :      use_by_bank[i][k] where k is in [0, use_by_bank[i][j]).  For
     738             :      example, if use_by_bank[i][0] = 2 and use_by_bank[i][1] = 3, then
     739             :      all the accounts that the first transaction in the outstanding
     740             :      microblock for bank 0 uses are contained in the set
     741             :                { use_by_bank[i][0], use_by_bank[i][1] },
     742             :      and all the accounts in the second transaction in the microblock
     743             :      are in the set
     744             :         { use_by_bank[i][0], use_by_bank[i][1], use_by_bank[i][2] }.
     745             :      Each transaction writes to at least one account (the fee payer)
     746             :      that no other transaction scheduled to the bank uses, which means
     747             :      that use_by_bank_txn[i][j] - use_by_bank_txn[i][j-1] >= 1 (with 0
     748             :      for use_by_bank_txn[i][-1]).  This means we can stop iterating when
     749             :      use_by_bank_txn[i][j] == use_by_bank_cnt[i].  */
     750             :   fd_pack_addr_use_t * use_by_bank    [ FD_PACK_MAX_EXECLE_TILES ];
     751             :   ulong                use_by_bank_cnt[ FD_PACK_MAX_EXECLE_TILES ];
     752             :   ulong *              use_by_bank_txn[ FD_PACK_MAX_EXECLE_TILES ];
     753             : 
     754             :   fd_histf_t txn_per_microblock [ 1 ];
     755             :   fd_histf_t vote_per_microblock[ 1 ];
     756             : 
     757             :   fd_histf_t scheduled_cus_per_block[ 1 ];
     758             :   fd_histf_t rebated_cus_per_block  [ 1 ];
     759             :   fd_histf_t net_cus_per_block      [ 1 ];
     760             :   fd_histf_t pct_cus_per_block      [ 1 ];
     761             :   ulong      cumulative_rebated_cus;
     762             : 
     763             : 
     764             :   /* compressed_slot_number: a number in (FD_PACK_SKIP_CNT, USHORT_MAX]
     765             :      that advances each time we start packing for a new slot. */
     766             :   ushort     compressed_slot_number;
     767             : 
     768             :   /* bitset_avail: a stack of which bits are not currently reserved and
     769             :      can be used to represent an account address.
     770             :      Indexed [0, bitset_avail_cnt].  Element 0 is fixed at
     771             :      FD_PACK_BITSET_SLOWPATH. */
     772             :   ushort bitset_avail[ 1UL+FD_PACK_BITSET_MAX ];
     773             :   ulong  bitset_avail_cnt;
     774             : 
     775             :   /* acct_to_bitset: an fd_map_dynamic that maps acct addresses to the
     776             :      reference count, which bit, etc. */
     777             :   fd_pack_bitset_acct_mapping_t * acct_to_bitset;
     778             : 
     779             :   /* chdkup: scratch memory chkdup needs for its internal processing */
     780             :   fd_chkdup_t chkdup[ 1 ];
     781             : 
     782             :   /* bundle_meta: an array, parallel to the pool, with each element
     783             :      having size bundle_meta_sz.  I.e. if pool[i] has an associated
     784             :      bundle meta, it's located at bundle_meta[j] for j in
     785             :      [i*bundle_meta_sz, (i+1)*bundle_meta_sz). */
     786             :   void * bundle_meta;
     787             : };
     788             : 
     789             : typedef struct fd_pack_private fd_pack_t;
     790             : 
     791             : FD_STATIC_ASSERT( offsetof(fd_pack_t, pending_txn_cnt)==FD_PACK_PENDING_TXN_CNT_OFF, txn_cnt_off );
     792             : 
     793             : /* Forward-declare some helper functions */
     794             : static ulong delete_transaction( fd_pack_t * pack, fd_pack_ord_txn_t * txn, int delete_full_bundle, int move_from_penalty_treap );
     795             : static inline void insert_bundle_impl( fd_pack_t * pack, ulong bundle_idx, ulong txn_cnt, fd_pack_ord_txn_t * * bundle, ulong expires_at );
     796             : 
     797             : FD_FN_PURE ulong
     798             : fd_pack_footprint( ulong                    pack_depth,
     799             :                    ulong                    bundle_meta_sz,
     800             :                    ulong                    bank_tile_cnt,
     801         285 :                    fd_pack_limits_t const * limits         ) {
     802         285 :   if( FD_UNLIKELY( (bank_tile_cnt==0) | (bank_tile_cnt>FD_PACK_MAX_EXECLE_TILES) ) ) return 0UL;
     803         285 :   if( FD_UNLIKELY( pack_depth<4UL ) ) return 0UL;
     804             : 
     805         285 :   int enable_bundles = !!bundle_meta_sz;
     806         285 :   ulong l;
     807         285 :   ulong extra_depth        = fd_ulong_if( enable_bundles, 1UL+2UL*FD_PACK_MAX_TXN_PER_BUNDLE, 1UL ); /* space for use between init and fini */
     808         285 :   ulong max_acct_in_treap  = pack_depth * FD_TXN_ACCT_ADDR_MAX;
     809         285 :   ulong max_txn_per_mblk   = fd_ulong_max( limits->max_txn_per_microblock,
     810         285 :                                            fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE, 0UL ) );
     811         285 :   ulong max_acct_in_flight = bank_tile_cnt * (FD_TXN_ACCT_ADDR_MAX * max_txn_per_mblk + 1UL);
     812         285 :   ulong max_txn_in_flight  = bank_tile_cnt * max_txn_per_mblk;
     813             : 
     814         285 :   ulong max_w_per_block    = fd_ulong_min( limits->max_cost_per_block / FD_PACK_COST_PER_WRITABLE_ACCT,
     815         285 :                                            max_txn_per_mblk * limits->max_microblocks_per_block * FD_TXN_ACCT_ADDR_MAX );
     816         285 :   ulong wcost_chain_cnt    = wcost_map_chain_cnt_est( max_w_per_block );
     817         285 :   ulong bundle_temp_accts  = fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE*FD_TXN_ACCT_ADDR_MAX, 1UL );
     818         285 :   ulong sig_chain_cnt      = sig2txn_chain_cnt_est( pack_depth );
     819         285 :   ulong nonce_chain_cnt    = noncemap_chain_cnt_est( pack_depth );
     820             : 
     821             :   /* log base 2, but with a 2* so that the hash table stays sparse */
     822         285 :   int lg_uses_tbl_sz = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_flight                        ) );
     823         285 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap                         ) );
     824         285 :   int lg_penalty_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap/PENALTY_TREAP_THRESHOLD ) );
     825         285 :   int lg_bundle_temp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*bundle_temp_accts                         ) );
     826             : 
     827         285 :   l = FD_LAYOUT_INIT;
     828         285 :   l = FD_LAYOUT_APPEND( l, FD_PACK_ALIGN,       sizeof(fd_pack_t)                               );
     829         285 :   l = FD_LAYOUT_APPEND( l, trp_pool_align (),   trp_pool_footprint ( pack_depth+extra_depth   ) ); /* pool           */
     830         285 :   l = FD_LAYOUT_APPEND( l, penalty_map_align(), penalty_map_footprint( lg_penalty_trp         ) ); /* penalty_treaps */
     831         285 :   l = FD_LAYOUT_APPEND( l, expq_align     (),   expq_footprint     ( pack_depth               ) ); /* expiration prq */
     832         285 :   l = FD_LAYOUT_APPEND( l, acct_uses_align(),   acct_uses_footprint( lg_uses_tbl_sz           ) ); /* acct_in_use    */
     833         285 :   l = FD_LAYOUT_APPEND( l, wcost_map_align(),   wcost_map_footprint( wcost_chain_cnt          ) ); /* writer_costs   */
     834         285 :   l = FD_LAYOUT_APPEND( l, wcost_pool_align(),  wcost_pool_footprint( max_w_per_block         ) ); /* writers        */
     835         285 :   l = FD_LAYOUT_APPEND( l, noncemap_align (),   noncemap_footprint ( nonce_chain_cnt          ) ); /* noncemap       */
     836         285 :   l = FD_LAYOUT_APPEND( l, sig2txn_align  (),   sig2txn_footprint  ( sig_chain_cnt            ) ); /* signature_map  */
     837         285 :   l = FD_LAYOUT_APPEND( l, acct_uses_align(),   acct_uses_footprint( lg_bundle_temp           ) ); /* bundle_temp_map*/
     838         285 :   l = FD_LAYOUT_APPEND( l, 32UL,                sizeof(fd_pack_addr_use_t)*max_acct_in_flight   ); /* use_by_bank    */
     839         285 :   l = FD_LAYOUT_APPEND( l, 32UL,                sizeof(ulong)*max_txn_in_flight                 ); /* use_by_bank_txn*/
     840         285 :   l = FD_LAYOUT_APPEND( l, bitset_map_align(),  bitset_map_footprint( lg_acct_in_trp          ) ); /* acct_to_bitset */
     841         285 :   l = FD_LAYOUT_APPEND( l, 64UL,                (pack_depth+extra_depth)*bundle_meta_sz         ); /* bundle_meta */
     842         285 :   return FD_LAYOUT_FINI( l, FD_PACK_ALIGN );
     843         285 : }
     844             : 
     845             : void *
     846             : fd_pack_new( void                   * mem,
     847             :              ulong                    pack_depth,
     848             :              ulong                    bundle_meta_sz,
     849             :              ulong                    bank_tile_cnt,
     850             :              fd_pack_limits_t const * limits,
     851             :              fd_acct_addr_t const *   acct_blocklist,
     852             :              ulong                    acct_blocklist_cnt,
     853         300 :              fd_rng_t               * rng           ) {
     854             : 
     855         300 :   int enable_bundles = !!bundle_meta_sz;
     856         300 :   ulong extra_depth        = fd_ulong_if( enable_bundles, 1UL+2UL*FD_PACK_MAX_TXN_PER_BUNDLE, 1UL );
     857         300 :   ulong max_acct_in_treap  = pack_depth * FD_TXN_ACCT_ADDR_MAX;
     858         300 :   ulong max_txn_per_mblk   = fd_ulong_max( limits->max_txn_per_microblock,
     859         300 :                                            fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE, 0UL ) );
     860         300 :   ulong max_acct_in_flight = bank_tile_cnt * (FD_TXN_ACCT_ADDR_MAX * max_txn_per_mblk + 1UL);
     861         300 :   ulong max_txn_in_flight  = bank_tile_cnt * max_txn_per_mblk;
     862             : 
     863         300 :   ulong max_w_per_block    = fd_ulong_min( limits->max_cost_per_block / FD_PACK_COST_PER_WRITABLE_ACCT,
     864         300 :                                            max_txn_per_mblk * limits->max_microblocks_per_block * FD_TXN_ACCT_ADDR_MAX );
     865         300 :   ulong wcost_chain_cnt    = wcost_map_chain_cnt_est( max_w_per_block );
     866         300 :   ulong bundle_temp_accts  = fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE*FD_TXN_ACCT_ADDR_MAX, 1UL );
     867         300 :   ulong sig_chain_cnt      = sig2txn_chain_cnt_est( pack_depth );
     868         300 :   ulong nonce_chain_cnt    = noncemap_chain_cnt_est( pack_depth );
     869             : 
     870             :   /* log base 2, but with a 2* so that the hash table stays sparse */
     871         300 :   int lg_uses_tbl_sz = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_flight                        ) );
     872         300 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap                         ) );
     873         300 :   int lg_penalty_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap/PENALTY_TREAP_THRESHOLD ) );
     874         300 :   int lg_bundle_temp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*bundle_temp_accts                         ) );
     875             : 
     876         300 :   FD_SCRATCH_ALLOC_INIT( l, mem );
     877         300 :   fd_pack_t * pack    = FD_SCRATCH_ALLOC_APPEND( l,  FD_PACK_ALIGN,       sizeof(fd_pack_t)                             );
     878             :   /* The pool has one extra element that is used between insert_init and
     879             :      cancel/fini. */
     880         300 :   void * _pool        = FD_SCRATCH_ALLOC_APPEND( l,  trp_pool_align(),    trp_pool_footprint ( pack_depth+extra_depth ) );
     881         300 :   void * _penalty_map = FD_SCRATCH_ALLOC_APPEND( l,  penalty_map_align(), penalty_map_footprint( lg_penalty_trp       ) );
     882         300 :   void * _expq        = FD_SCRATCH_ALLOC_APPEND( l,  expq_align(),        expq_footprint     ( pack_depth             ) );
     883         300 :   void * _uses        = FD_SCRATCH_ALLOC_APPEND( l,  acct_uses_align(),   acct_uses_footprint( lg_uses_tbl_sz         ) );
     884         300 :   void * _writer_cost = FD_SCRATCH_ALLOC_APPEND( l,  wcost_map_align(),   wcost_map_footprint( wcost_chain_cnt        ) );
     885         300 :   void * _written_lst = FD_SCRATCH_ALLOC_APPEND( l,  wcost_pool_align(),  wcost_pool_footprint( max_w_per_block       ) );
     886         300 :   void * _noncemap    = FD_SCRATCH_ALLOC_APPEND( l,  noncemap_align(),    noncemap_footprint ( nonce_chain_cnt        ) );
     887         300 :   void * _sig_map     = FD_SCRATCH_ALLOC_APPEND( l,  sig2txn_align(),     sig2txn_footprint  ( sig_chain_cnt          ) );
     888         300 :   void * _bundle_temp = FD_SCRATCH_ALLOC_APPEND( l,  acct_uses_align(),   acct_uses_footprint( lg_bundle_temp         ) );
     889         300 :   void * _use_by_bank = FD_SCRATCH_ALLOC_APPEND( l,  32UL,                sizeof(fd_pack_addr_use_t)*max_acct_in_flight );
     890         300 :   void * _use_by_txn  = FD_SCRATCH_ALLOC_APPEND( l,  32UL,                sizeof(ulong)*max_txn_in_flight               );
     891         300 :   void * _acct_bitset = FD_SCRATCH_ALLOC_APPEND( l,  bitset_map_align(),  bitset_map_footprint( lg_acct_in_trp        ) );
     892         300 :   void * bundle_meta  = FD_SCRATCH_ALLOC_APPEND( l,  64UL,                (pack_depth+extra_depth)*bundle_meta_sz       );
     893             : 
     894         300 :   pack->pack_depth                  = pack_depth;
     895         300 :   pack->bundle_meta_sz              = bundle_meta_sz;
     896         300 :   pack->bank_tile_cnt               = bank_tile_cnt;
     897         300 :   pack->lim[0]                      = *limits;
     898         300 :   pack->pending_txn_cnt             = 0UL;
     899         300 :   pack->microblock_cnt              = 0UL;
     900         300 :   pack->data_bytes_consumed         = 0UL;
     901         300 :   pack->alloc_consumed              = 0UL;
     902         300 :   memset( pack->sched_results, 0, sizeof(pack->sched_results) );
     903         300 :   pack->rng                         = rng;
     904         300 :   pack->cumulative_block_cost       = 0UL;
     905         300 :   pack->cumulative_vote_cost        = 0UL;
     906         300 :   pack->expire_before               = 0UL;
     907         300 :   pack->outstanding_microblock_mask = 0UL;
     908         300 :   pack->cumulative_rebated_cus      = 0UL;
     909             : 
     910         300 :   acct_blocklist_new( pack->acct_blocklist );
     911         300 :   int ins_failed = acct_blocklist_cnt>FD_PACK_ACCT_BLOCKLIST_MAX;
     912         366 :   for( ulong i=0UL; (!ins_failed) & (i<acct_blocklist_cnt); i++ ) {
     913          66 :     ins_failed |= acct_blocklist_key_inval( acct_blocklist[i] ) ||
     914          66 :                   (NULL==acct_blocklist_insert( pack->acct_blocklist, acct_blocklist[i] ));
     915          66 :   }
     916         300 :   if( FD_UNLIKELY( ins_failed ) ) {
     917           6 :     FD_LOG_WARNING(( "constructing the account blocklist failed.  Ensure the list contains no more than %lu "
     918           6 :                      "entries, and does not contain duplicates or the System Program (11...111)", FD_PACK_ACCT_BLOCKLIST_MAX ));
     919           6 :     return NULL;
     920           6 :   }
     921             : 
     922         294 :   trp_pool_new(  _pool,        pack_depth+extra_depth );
     923             : 
     924         294 :   fd_pack_ord_txn_t * pool = trp_pool_join( _pool );
     925         294 :   treap_seed( pool, pack_depth+extra_depth, fd_rng_ulong( rng ) );
     926      346152 :   for( ulong i=0UL; i<pack_depth+extra_depth; i++ ) pool[i].root = FD_ORD_TXN_ROOT_FREE;
     927             : 
     928         294 :   (void)trp_pool_leave( pool );
     929             : 
     930         294 :   penalty_map_new( _penalty_map, lg_penalty_trp, fd_rng_ulong( rng ) );
     931             : 
     932             :   /* These treaps can have at most pack_depth elements at any moment,
     933             :      but they come from a pool of size pack_depth+extra_depth. */
     934         294 :   treap_new( (void*)pack->pending,         pack_depth+extra_depth );
     935         294 :   treap_new( (void*)pack->pending_votes,   pack_depth+extra_depth );
     936         294 :   treap_new( (void*)pack->pending_bundles, pack_depth+extra_depth );
     937             : 
     938         294 :   pack->pending_smallest->cus         = ULONG_MAX;
     939         294 :   pack->pending_smallest->bytes       = ULONG_MAX;
     940         294 :   pack->pending_votes_smallest->cus   = ULONG_MAX;
     941         294 :   pack->pending_votes_smallest->bytes = ULONG_MAX;
     942             : 
     943         294 :   expq_new( _expq, pack_depth );
     944             : 
     945         294 :   FD_PACK_BITSET_CLEAR( pack->bitset_rw_in_use );
     946         294 :   FD_PACK_BITSET_CLEAR( pack->bitset_w_in_use  );
     947             : 
     948         294 :   acct_uses_new( _uses,        lg_uses_tbl_sz, fd_rng_ulong( rng ) );
     949         294 :   acct_uses_new( _bundle_temp, lg_bundle_temp, fd_rng_ulong( rng ) );
     950             : 
     951         294 :   wcost_map_new  ( _writer_cost, wcost_chain_cnt, fd_rng_ulong( rng ) );
     952         294 :   wcost_dlist_new( pack->written_list                                 );
     953         294 :   wcost_pool_new ( _written_lst, max_w_per_block                      );
     954             : 
     955         294 :   noncemap_new( _noncemap, nonce_chain_cnt, fd_rng_ulong( rng ) );
     956             : 
     957         294 :   sig2txn_new( _sig_map, sig_chain_cnt, fd_rng_ulong( rng ) );
     958             : 
     959         294 :   fd_pack_addr_use_t * use_by_bank     = (fd_pack_addr_use_t *)_use_by_bank;
     960         294 :   ulong *              use_by_bank_txn = (ulong *)_use_by_txn;
     961        6285 :   for( ulong i=0UL; i<bank_tile_cnt; i++ ) {
     962        5991 :     pack->use_by_bank    [i] = use_by_bank + i*(FD_TXN_ACCT_ADDR_MAX*max_txn_per_mblk+1UL);
     963        5991 :     pack->use_by_bank_cnt[i] = 0UL;
     964        5991 :     pack->use_by_bank_txn[i] = use_by_bank_txn + i*max_txn_per_mblk;
     965        5991 :     pack->use_by_bank_txn[i][0] = 0UL;
     966        5991 :   }
     967       12531 :   for( ulong i=bank_tile_cnt; i<FD_PACK_MAX_EXECLE_TILES; i++ ) {
     968       12237 :     pack->use_by_bank    [i] = NULL;
     969       12237 :     pack->use_by_bank_cnt[i] = 0UL;
     970       12237 :     pack->use_by_bank_txn[i] = NULL;
     971       12237 :   }
     972             : 
     973         294 :   fd_histf_new( pack->txn_per_microblock,  FD_MHIST_MIN( PACK, TXN_PER_MICROBLOCK ),
     974         294 :                                            FD_MHIST_MAX( PACK, TXN_PER_MICROBLOCK ) );
     975         294 :   fd_histf_new( pack->vote_per_microblock, FD_MHIST_MIN( PACK, VOTE_PER_MICROBLOCK ),
     976         294 :                                            FD_MHIST_MAX( PACK, VOTE_PER_MICROBLOCK ) );
     977             : 
     978         294 :   fd_histf_new( pack->scheduled_cus_per_block, FD_MHIST_MIN( PACK, CU_SCHEDULED_PER_BLOCK ),
     979         294 :                                                FD_MHIST_MAX( PACK, CU_SCHEDULED_PER_BLOCK ) );
     980         294 :   fd_histf_new( pack->rebated_cus_per_block,   FD_MHIST_MIN( PACK, CU_REBATED_PER_BLOCK   ),
     981         294 :                                                FD_MHIST_MAX( PACK, CU_REBATED_PER_BLOCK   ) );
     982         294 :   fd_histf_new( pack->net_cus_per_block,       FD_MHIST_MIN( PACK, CU_NET_PER_BLOCK       ),
     983         294 :                                                FD_MHIST_MAX( PACK, CU_NET_PER_BLOCK       ) );
     984         294 :   fd_histf_new( pack->pct_cus_per_block,       FD_MHIST_MIN( PACK, CU_PCT       ),
     985         294 :                                                FD_MHIST_MAX( PACK, CU_PCT       ) );
     986             : 
     987         294 :   pack->compressed_slot_number = (ushort)(FD_PACK_SKIP_CNT+1);
     988             : 
     989         294 :   pack->bitset_avail[ 0 ] = FD_PACK_BITSET_SLOWPATH;
     990      100646 :   for( ulong i=0UL; i<FD_PACK_BITSET_MAX; i++ ) pack->bitset_avail[ i+1UL ] = (ushort)i;
     991         294 :   pack->bitset_avail_cnt = FD_PACK_BITSET_MAX;
     992             : 
     993         294 :   bitset_map_new( _acct_bitset, lg_acct_in_trp, fd_rng_ulong( rng ) );
     994             : 
     995         294 :   fd_chkdup_new( pack->chkdup, rng );
     996             : 
     997         294 :   pack->bundle_meta = bundle_meta;
     998             : 
     999         294 :   return mem;
    1000         300 : }
    1001             : 
    1002             : fd_pack_t *
    1003         294 : fd_pack_join( void * mem ) {
    1004         294 :   FD_SCRATCH_ALLOC_INIT( l, mem );
    1005         294 :   fd_pack_t * pack  = FD_SCRATCH_ALLOC_APPEND( l, FD_PACK_ALIGN, sizeof(fd_pack_t) );
    1006             : 
    1007         294 :   int enable_bundles = !!pack->bundle_meta_sz;
    1008         294 :   ulong pack_depth             = pack->pack_depth;
    1009         294 :   ulong extra_depth            = fd_ulong_if( enable_bundles, 1UL+2UL*FD_PACK_MAX_TXN_PER_BUNDLE, 1UL );
    1010         294 :   ulong bank_tile_cnt          = pack->bank_tile_cnt;
    1011         294 :   ulong max_txn_per_microblock = fd_ulong_max( pack->lim->max_txn_per_microblock,
    1012         294 :                                                fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE, 0UL ) );
    1013             : 
    1014         294 :   ulong max_acct_in_treap  = pack_depth * FD_TXN_ACCT_ADDR_MAX;
    1015         294 :   ulong max_acct_in_flight = bank_tile_cnt * (FD_TXN_ACCT_ADDR_MAX * max_txn_per_microblock + 1UL);
    1016         294 :   ulong max_txn_in_flight  = bank_tile_cnt * max_txn_per_microblock;
    1017         294 :   ulong max_w_per_block    = fd_ulong_min( pack->lim->max_cost_per_block / FD_PACK_COST_PER_WRITABLE_ACCT,
    1018         294 :                                            max_txn_per_microblock * pack->lim->max_microblocks_per_block * FD_TXN_ACCT_ADDR_MAX );
    1019         294 :   ulong wcost_chain_cnt    = wcost_map_chain_cnt_est( max_w_per_block );
    1020         294 :   ulong bundle_temp_accts  = fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE*FD_TXN_ACCT_ADDR_MAX, 1UL );
    1021         294 :   ulong sig_chain_cnt      = sig2txn_chain_cnt_est( pack_depth );
    1022         294 :   ulong nonce_chain_cnt    = noncemap_chain_cnt_est( pack_depth );
    1023             : 
    1024         294 :   int lg_uses_tbl_sz = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_flight                        ) );
    1025         294 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap                         ) );
    1026         294 :   int lg_penalty_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap/PENALTY_TREAP_THRESHOLD ) );
    1027         294 :   int lg_bundle_temp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*bundle_temp_accts                         ) );
    1028             : 
    1029             : 
    1030         294 :   pack->pool          = trp_pool_join(   FD_SCRATCH_ALLOC_APPEND( l, trp_pool_align(),   trp_pool_footprint   ( pack_depth+extra_depth  ) ) );
    1031         294 :   pack->penalty_treaps= penalty_map_join(FD_SCRATCH_ALLOC_APPEND( l, penalty_map_align(),penalty_map_footprint( lg_penalty_trp          ) ) );
    1032         294 :   pack->expiration_q  = expq_join    (   FD_SCRATCH_ALLOC_APPEND( l, expq_align(),       expq_footprint       ( pack_depth              ) ) );
    1033         294 :   pack->acct_in_use   = acct_uses_join(  FD_SCRATCH_ALLOC_APPEND( l, acct_uses_align(),  acct_uses_footprint  ( lg_uses_tbl_sz          ) ) );
    1034         294 :   pack->writer_costs  = wcost_map_join(  FD_SCRATCH_ALLOC_APPEND( l, wcost_map_align(),  wcost_map_footprint  ( wcost_chain_cnt         ) ) );
    1035         294 :   pack->writers       = wcost_pool_join( FD_SCRATCH_ALLOC_APPEND( l, wcost_pool_align(), wcost_pool_footprint( max_w_per_block          ) ) );
    1036         294 :   pack->noncemap      = noncemap_join(   FD_SCRATCH_ALLOC_APPEND( l, noncemap_align(),   noncemap_footprint   ( nonce_chain_cnt         ) ) );
    1037         294 :   pack->signature_map = sig2txn_join(    FD_SCRATCH_ALLOC_APPEND( l, sig2txn_align(),    sig2txn_footprint    ( sig_chain_cnt           ) ) );
    1038         294 :   pack->bundle_temp_map=acct_uses_join(  FD_SCRATCH_ALLOC_APPEND( l, acct_uses_align(),  acct_uses_footprint  ( lg_bundle_temp          ) ) );
    1039         294 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 32UL,               sizeof(fd_pack_addr_use_t)*max_acct_in_flight      );
    1040         294 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 32UL,               sizeof(ulong)*max_txn_in_flight                    );
    1041         294 :   pack->acct_to_bitset= bitset_map_join( FD_SCRATCH_ALLOC_APPEND( l, bitset_map_align(), bitset_map_footprint( lg_acct_in_trp           ) ) );
    1042         294 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 64UL,               (pack_depth+extra_depth)*pack->bundle_meta_sz      );
    1043             : 
    1044         294 :   wcost_dlist_join( pack->written_list );
    1045             : 
    1046         294 :   FD_MGAUGE_SET( PACK, TXN_PENDING_CAPACITY, pack->pack_depth );
    1047         294 :   memset( pack->top_writers, 0, sizeof(pack->top_writers) );
    1048             : 
    1049         294 :   return pack;
    1050         294 : }
    1051             : 
    1052             : 
    1053             : /* Returns 0 on failure, 1 on success for a vote, 2 on success for a
    1054             :    non-vote. */
    1055             : static int
    1056             : fd_pack_estimate_rewards_and_compute( fd_txn_e_t             * txne,
    1057             :                                       fd_pack_ord_txn_t      * out,
    1058       37314 :                                       fd_pack_limits_t const * lim ) {
    1059       37314 :   fd_txn_t * txn = TXN(txne->txnp);
    1060       37314 :   ulong sig_rewards = FD_PACK_FEE_PER_SIGNATURE * txn->signature_cnt; /* Easily in [5000, 635000] */
    1061             : 
    1062       37314 :   ulong requested_execution_cus;
    1063       37314 :   ulong priority_rewards;
    1064       37314 :   ulong precompile_sigs;
    1065       37314 :   ulong requested_loaded_accounts_data_cost;
    1066       37314 :   ulong allocated_data;
    1067       37314 :   ulong cost_estimate = fd_pack_compute_cost( txn, txne->txnp->payload, &txne->txnp->flags, &requested_execution_cus, &priority_rewards, &precompile_sigs, &requested_loaded_accounts_data_cost, &allocated_data );
    1068             : 
    1069       37314 :   if( FD_UNLIKELY( !cost_estimate ) ) return 0;
    1070             : 
    1071             :   /* precompile_sigs <= 16320, so after the addition,
    1072             :      sig_rewards < 83,000,000 */
    1073       37311 :   sig_rewards += FD_PACK_FEE_PER_SIGNATURE * precompile_sigs;
    1074       37311 :   sig_rewards = sig_rewards * FD_PACK_TXN_FEE_BURN_PCT / 100UL;
    1075             : 
    1076             :   /* No fancy CU estimation in this version of pack
    1077             :   for( ulong i=0UL; i<(ulong)txn->instr_cnt; i++ ) {
    1078             :     uchar prog_id_idx = txn->instr[ i ].program_id;
    1079             :     fd_acct_addr_t const * acct_addr = fd_txn_get_acct_addrs( txn, txnp->payload ) + (ulong)prog_id_idx;
    1080             :   }
    1081             :   */
    1082       37311 :   out->rewards                              = (priority_rewards < (UINT_MAX - sig_rewards)) ? (uint)(sig_rewards + priority_rewards) : UINT_MAX;
    1083       37311 :   out->compute_est                          = (uint)cost_estimate;
    1084       37311 :   out->txn->pack_cu.requested_exec_plus_acct_data_cus = (uint)(requested_execution_cus + requested_loaded_accounts_data_cost);
    1085       37311 :   out->txn->pack_cu.non_execution_cus       = (uint)(cost_estimate - requested_execution_cus - requested_loaded_accounts_data_cost);
    1086       37311 :   out->txn->pack_alloc                      = (uint)allocated_data;
    1087             : 
    1088             :   /* If a transaction allocates a lot, we want to treat it as if it
    1089             :      requests more CUs.  However, we use compute_est in the block
    1090             :      limit calculations, so we can't touch it.  To have the same
    1091             :      effect, we decrease rewards.
    1092             :      divisor is 1 unless
    1093             :             allocated_data                       cost_estimate
    1094             :       ----------------------------    >=       ------------------
    1095             :       max_allocated_data_per_block             max_cost_per_block
    1096             : 
    1097             :      0       <=allocated_data      <=20 * 1024^2
    1098             :      30*10^6 <= max_cost_per_block < 2^32
    1099             :      1020    <= cost_estimate      < 1.6 * 10^6
    1100             :      50*10^6 <= max_allocated_data_per_block <= 100 * 1000^2
    1101             :                 (changes with the slot time duration)
    1102             :      So the numerator (<2^57) and denominator (<2^48) can't overflow.
    1103             :      Both cost_estimate and max_allocated_data_per_block non-zero,
    1104             :      so the denominator is never zero.
    1105             :      1 <= divisor <= 1 + (max_cost_per_block * .000206)
    1106             :      */
    1107       37311 :   ulong divisor = 1UL + (allocated_data * lim->max_cost_per_block) / (cost_estimate * lim->max_allocated_data_per_block);
    1108       37311 :   out->rewards /= (uint)divisor;
    1109             : 
    1110       37311 :   return fd_int_if( txne->txnp->flags & FD_TXN_P_FLAGS_IS_SIMPLE_VOTE, 1, 2 );
    1111       37314 : }
    1112             : 
    1113             : /* Returns 0 on failure, 1 if not a durable nonce transaction, and 2 if
    1114             :    it is.  FIXME: These return codes are set to harmonize with
    1115             :    estimate_rewards_and_compute but -1/0/1 makes a lot more sense to me.
    1116             :    */
    1117             : static int
    1118       37308 : fd_pack_validate_durable_nonce( fd_txn_e_t * txne ) {
    1119       37308 :   fd_txn_t const * txn = TXN(txne->txnp);
    1120             : 
    1121             :   /* First instruction invokes system program with 4 bytes of
    1122             :      instruction data with the little-endian value 4.  It also has 3
    1123             :      accounts: the nonce account, recent blockhashes sysvar, and the
    1124             :      nonce authority.  It seems like technically the nonce authority may
    1125             :      not need to be passed in, but we disallow that.  We also allow
    1126             :      trailing data and trailing accounts.  We want to organize the
    1127             :      checks somewhat to minimize cache misses. */
    1128       37308 :   if( FD_UNLIKELY( txn->instr_cnt==0            ) ) return 1;
    1129       37308 :   if( FD_UNLIKELY( txn->instr[ 0 ].data_sz<4UL  ) ) return 1;
    1130       37308 :   if( FD_UNLIKELY( txn->instr[ 0 ].acct_cnt<3UL ) ) return 1; /* It seems like technically 2 is allowed, but never used */
    1131        8034 :   if( FD_LIKELY  ( fd_uint_load_4( txne->txnp->payload + txn->instr[ 0 ].data_off )!=4U ) ) return 1;
    1132             :   /* The program has to be a static account */
    1133        1155 :   fd_acct_addr_t const * accts = fd_txn_get_acct_addrs( txn, txne->txnp->payload );
    1134        1155 :   if( FD_UNLIKELY( !fd_memeq( accts[ txn->instr[ 0 ].program_id ].b, null_addr.b, 32UL       ) ) ) return 1;
    1135        1155 :   if( FD_UNLIKELY( !fd_txn_is_signer( txn, txne->txnp->payload[ txn->instr[ 0 ].acct_off+2 ] ) ) ) return 0;
    1136             :   /* We could check recent blockhash, but it's not necessary */
    1137        1152 :   return 2;
    1138        1155 : }
    1139             : 
    1140             : /* Can the fee payer afford to pay a transaction with the specified
    1141             :    price?  Returns 1 if so, 0 otherwise.  This is just a stub that
    1142             :    always returns 1 for now, and the real check is deferred to the bank
    1143             :    tile.  In general, this function can't be totally accurate, because
    1144             :    the transactions immediately prior to this one can affect the balance
    1145             :    of this fee payer, but a simple check here may be helpful for
    1146             :    reducing spam. */
    1147             : static int
    1148             : fd_pack_can_fee_payer_afford( fd_acct_addr_t const * acct_addr,
    1149       37302 :                               ulong                  price /* in lamports */) {
    1150       37302 :   (void)acct_addr;
    1151       37302 :   (void)price;
    1152       37302 :   return 1;
    1153       37302 : }
    1154             : 
    1155             : 
    1156             : 
    1157             : 
    1158             : 
    1159       35730 : fd_txn_e_t * fd_pack_insert_txn_init(   fd_pack_t * pack                   ) { return trp_pool_ele_acquire( pack->pool )->txn_e; }
    1160           0 : void         fd_pack_insert_txn_cancel( fd_pack_t * pack, fd_txn_e_t * txn ) { trp_pool_ele_release( pack->pool, (fd_pack_ord_txn_t*)txn ); }
    1161             : 
    1162          24 : #define REJECT( reason ) do {                                       \
    1163          24 :                            trp_pool_ele_release( pack->pool, ord ); \
    1164          24 :                            return FD_PACK_INSERT_REJECT_ ## reason; \
    1165          24 :                          } while( 0 )
    1166             : 
    1167             : /* These require txn, accts, and alt_adj to be defined as per usual */
    1168       30067 : #define ACCT_IDX_TO_PTR( idx ) (__extension__( {                                               \
    1169       30067 :       ulong __idx = (ulong)(idx);                                                              \
    1170       30067 :       fd_ptr_if( __idx<fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM ), accts, alt_adj )+__idx; \
    1171       30067 :       }))
    1172     1367178 : #define ACCT_ITER_TO_PTR( iter ) (__extension__( {                                             \
    1173     1367178 :       ulong __idx = fd_txn_acct_iter_idx( iter );                                              \
    1174     1367178 :       fd_ptr_if( __idx<fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM ), accts, alt_adj )+__idx; \
    1175     1367178 :       }))
    1176             : 
    1177             : 
    1178             : /* Tries to find the worst transaction in any treap in pack.  If that
    1179             :    transaction's score is worse than or equal to threshold_score, it
    1180             :    initiates a delete and returns the number of deleted transactions
    1181             :    (potentially more than 1 for a bundle).  If it's higher than
    1182             :    threshold_score, it returns 0.  To force this function to delete the
    1183             :    worst transaction if there are any eligible ones, pass FLT_MAX as
    1184             :    threshold_score. */
    1185             : static inline ulong
    1186             : delete_worst( fd_pack_t * pack,
    1187             :               float       threshold_score,
    1188        3081 :               int         is_vote ) {
    1189             :   /* If the tree is full, we want to see if this is better than the
    1190             :      worst element in the pool before inserting.  If the new transaction
    1191             :      is better than that one, we'll delete it and insert the new
    1192             :      transaction. Otherwise, we'll throw away this transaction.
    1193             : 
    1194             :      We want to bias the definition of "worst" here to provide better
    1195             :      quality of service.  For example, if the pool is filled with
    1196             :      transactions that all write to the same account or are all votes,
    1197             :      we want to bias towards treating one of those transactions as the
    1198             :      worst, even if they pay slightly higher fees per computer unit,
    1199             :      since we know we won't actually be able to schedule them all.
    1200             : 
    1201             :      This is a tricky task, however.  All our notions of priority and
    1202             :      better/worse are based on static information about the transaction,
    1203             :      and there's not an easy way to take into account global
    1204             :      information, for example, how many other transactions contend with
    1205             :      this one.  One idea is to build a heap (not a treap, since we only
    1206             :      need pop-min, insert, and delete) with one element for each element
    1207             :      in the pool, with a "delete me" score that's related but not
    1208             :      identical to the normal score.  This would allow building in some
    1209             :      global information.  The downside is that the global information
    1210             :      that gets integrated is static.  E.g. if you bias a transaction's
    1211             :      "delete me" score to make it more likely to be deleted because
    1212             :      there are many conflicting transactions in the pool, the score
    1213             :      stays biased, even if the global conditions change (unless you come
    1214             :      up with some complicated re-scoring scheme).  This can work, since
    1215             :      when the pool is full, the global bias factors are unlikely to
    1216             :      change significantly at the relevant timescales.
    1217             : 
    1218             :      However, rather than this, we implement a simpler probabilistic
    1219             :      scheme.  We'll sample M transactions, find the worst transaction in
    1220             :      each of the M treaps, compute a "delete me" score for those <= M
    1221             :      transactions, and delete the worst.  If one penalty treap is
    1222             :      starting to get big, then it becomes very likely that the random
    1223             :      sample will find it and choose to delete a transaction from it.
    1224             : 
    1225             :      The exact formula for the "delete me" score should be the matter of
    1226             :      some more intense quantitative research.  For now, we'll just use
    1227             :      this:
    1228             : 
    1229             :      Treap with N transactions        Scale Factor
    1230             :      Pending                      1.0 unless inserting a vote and votes < 25%
    1231             :      Pending votes                1.0 until 75% of depth, then 0
    1232             :      Penalty treap                1.0 at <= 100 transactions, then sqrt(100/N)
    1233             :      Pending bundles              inf (since the rewards value is fudged)
    1234             : 
    1235             :      We'll also use M=8. */
    1236             : 
    1237        3081 :   float worst_score = FLT_MAX;
    1238        3081 :   fd_pack_ord_txn_t * worst = NULL;
    1239       27729 :   for( ulong i=0UL; i<8UL; i++ ) {
    1240       24648 :     uint  pool_max = (uint)trp_pool_max( pack->pool );
    1241       24648 :     ulong sample_i = fd_rng_uint_roll( pack->rng, pool_max );
    1242             : 
    1243       24648 :     fd_pack_ord_txn_t * sample = &pack->pool[ sample_i ];
    1244             :     /* Presumably if we're calling this, the pool is almost entirely
    1245             :        full, so the probability of choosing a free one is small.  If
    1246             :        it does happen, find the first one that isn't free. */
    1247       26089 :     while( FD_UNLIKELY( sample->root==FD_ORD_TXN_ROOT_FREE ) ) sample = &pack->pool[ (++sample_i)%pool_max ];
    1248             : 
    1249       24648 :     int       root_idx   = sample->root;
    1250       24648 :     float     multiplier = 0.0f; /* The smaller this is, the more biased we'll be to deleting it */
    1251       24648 :     treap_t * treap;
    1252       24648 :     switch( root_idx & FD_ORD_TXN_ROOT_TAG_MASK ) {
    1253           0 :       default:
    1254           0 :       case FD_ORD_TXN_ROOT_FREE: {
    1255           0 :         FD_LOG_CRIT(( "Double free detected" ));
    1256           0 :         return ULONG_MAX; /* Can't be hit */
    1257           0 :       }
    1258        3392 :       case FD_ORD_TXN_ROOT_PENDING: {
    1259        3392 :         treap = pack->pending;
    1260        3392 :         ulong vote_cnt = treap_ele_cnt( pack->pending_votes );
    1261        3392 :         if( FD_LIKELY( !is_vote || (vote_cnt>=pack->pack_depth/4UL ) ) ) multiplier = 1.0f;
    1262        3392 :         break;
    1263           0 :       }
    1264           0 :       case FD_ORD_TXN_ROOT_PENDING_VOTE: {
    1265           0 :         treap = pack->pending_votes;
    1266           0 :         ulong vote_cnt = treap_ele_cnt( pack->pending_votes );
    1267           0 :         if( FD_LIKELY( is_vote || (vote_cnt<=3UL*pack->pack_depth/4UL ) ) ) multiplier = 1.0f;
    1268           0 :         break;
    1269           0 :       }
    1270           0 :       case FD_ORD_TXN_ROOT_PENDING_BUNDLE: {
    1271             :         /* We don't have a way to tell how much these actually pay in
    1272             :            rewards, so we just assume they are very high. */
    1273           0 :         treap = pack->pending_bundles;
    1274             :         /* We cap rewards at UINT_MAX lamports for estimation, and min
    1275             :            CUs is about 1000, which means rewards/compute < 5e6.
    1276             :            FLT_MAX is around 3e38. That means, 1e20*rewards/compute is
    1277             :            much less than FLT_MAX, so we won't have any issues with
    1278             :            overflow.  On the other hand, if rewards==1 lamport and
    1279             :            compute is 2 million CUs, 1e20*1/2e6 is still higher than any
    1280             :            normal transaction. */
    1281           0 :         multiplier = 1e20f;
    1282           0 :         break;
    1283           0 :       }
    1284       21256 :       case FD_ORD_TXN_ROOT_PENALTY( 0 ): {
    1285       21256 :         fd_txn_t * txn = TXN( sample->txn );
    1286       21256 :         fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, sample->txn->payload );
    1287       21256 :         fd_acct_addr_t const * alt_adj = sample->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1288       21256 :         fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( root_idx ) );
    1289       21256 :         fd_pack_penalty_treap_t * q = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    1290       21256 :         FD_TEST( q );
    1291       21256 :         ulong cnt = treap_ele_cnt( q->penalty_treap );
    1292       21256 :         treap = q->penalty_treap;
    1293             : 
    1294       21256 :         multiplier = sqrtf( 100.0f / (float)fd_ulong_max( 100UL, cnt ) );
    1295       21256 :         break;
    1296       21256 :       }
    1297       24648 :     }
    1298             :     /* Get the worst from the sampled treap */
    1299       24648 :     treap_fwd_iter_t _cur=treap_fwd_iter_init( treap, pack->pool );
    1300       24648 :     FD_TEST( !treap_fwd_iter_done( _cur ) ); /* It can't be empty because we just sampled an element from it. */
    1301       24648 :     sample = treap_fwd_iter_ele( _cur, pack->pool );
    1302             : 
    1303       24648 :     float score = multiplier * (float)sample->rewards / (float)sample->compute_est;
    1304       24648 :     worst = fd_ptr_if( score<worst_score, sample, worst );
    1305       24648 :     worst_score = fd_float_if( worst_score<score, worst_score, score );
    1306       24648 :   }
    1307             : 
    1308        3081 :   if( FD_UNLIKELY( !worst                      ) ) return 0;
    1309        3081 :   if( FD_UNLIKELY( threshold_score<worst_score ) ) return 0;
    1310             : 
    1311        3081 :   return delete_transaction( pack, worst, 1, 1 );
    1312        3081 : }
    1313             : 
    1314             : static inline int
    1315             : validate_transaction( fd_pack_t               * pack,
    1316             :                       fd_pack_ord_txn_t const * ord,
    1317             :                       fd_txn_t          const * txn,
    1318             :                       fd_acct_addr_t    const * accts,
    1319             :                       fd_acct_addr_t    const * alt_adj,
    1320       37302 :                       int                       check_bundle_blacklist ) {
    1321       37302 :   int writes_to_sysvar = 0;
    1322       37302 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    1323      127719 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1324       90417 :     writes_to_sysvar |= fd_pack_unwritable_contains( ACCT_ITER_TO_PTR( iter ) );
    1325       90417 :   }
    1326             : 
    1327       37302 :   int bundle_blacklist = 0;
    1328       37302 :   int acct_blocklist   = 0;
    1329       37302 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_ALL );
    1330      264450 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1331      227148 :     bundle_blacklist |= (3==fd_pack_tip_prog_check_blacklist( ACCT_ITER_TO_PTR( iter ) ));
    1332             :     /* querying for the inval key is a violation of the fd_map
    1333             :        contract, even though it's actually fine... */
    1334      227148 :     acct_blocklist   |= (!acct_blocklist_key_inval( *ACCT_ITER_TO_PTR( iter ) )) &&
    1335      227148 :                         !!acct_blocklist_query( pack->acct_blocklist, *ACCT_ITER_TO_PTR( iter ), NULL );
    1336      227148 :   }
    1337             : 
    1338       37302 :   fd_acct_addr_t const * alt     = ord->txn_e->alt_accts;
    1339       37302 :   fd_chkdup_t * chkdup = pack->chkdup;
    1340       37302 :   ulong imm_cnt = fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1341       37302 :   ulong alt_cnt = fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_ALT );
    1342             : 
    1343             :   /* Throw out transactions ... */
    1344             :   /*           ... that are unfunded */
    1345       37302 :   if( FD_UNLIKELY( !fd_pack_can_fee_payer_afford( accts, ord->rewards    ) ) ) return FD_PACK_INSERT_REJECT_UNAFFORDABLE;
    1346             :   /*           ... that are so big they'll never run */
    1347       37302 :   if( FD_UNLIKELY( ord->compute_est >= pack->lim->max_cost_per_block       ) ) return FD_PACK_INSERT_REJECT_TOO_LARGE;
    1348             :   /*           ... that load too many accounts (ignoring 9LZdXeKGeBV6hRLdxS1rHbHoEUsKqesCC2ZAPTPKJAbK) */
    1349       37302 :   if( FD_UNLIKELY( fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_ALL )>64UL     ) ) return FD_PACK_INSERT_REJECT_ACCOUNT_CNT;
    1350             :   /*           ... that duplicate an account address */
    1351       37299 :   if( FD_UNLIKELY( fd_chkdup_check( chkdup, accts, imm_cnt, alt, alt_cnt ) ) ) return FD_PACK_INSERT_REJECT_DUPLICATE_ACCT;
    1352             :   /*           ... that try to write to a sysvar */
    1353       37296 :   if( FD_UNLIKELY( writes_to_sysvar                                        ) ) return FD_PACK_INSERT_REJECT_WRITES_SYSVAR;
    1354             :   /*           ... that use an account that violates bundle rules */
    1355       37203 :   if( FD_UNLIKELY( bundle_blacklist & !!check_bundle_blacklist             ) ) return FD_PACK_INSERT_REJECT_BUNDLE_BLACKLIST;
    1356             :   /*           ... that use a blocklisted account */
    1357       37203 :   if( FD_UNLIKELY( acct_blocklist                                          ) ) return FD_PACK_INSERT_REJECT_ACCT_BLOCKLIST;
    1358             : 
    1359       37188 :   return 0;
    1360       37203 : }
    1361             : 
    1362             : 
    1363             : 
    1364             : /* returns cumulative penalty "points", i.e. the sum of the populated
    1365             :    section of penalties (which also tells the caller how much of the
    1366             :    array is populated. */
    1367             : static inline ulong
    1368             : populate_bitsets( fd_pack_t         * pack,
    1369             :                   fd_pack_ord_txn_t * ord,
    1370             :                   ushort              penalties  [ static FD_TXN_ACCT_ADDR_MAX ],
    1371       36138 :                   uchar               penalty_idx[ static FD_TXN_ACCT_ADDR_MAX ] ) {
    1372       36138 :   FD_PACK_BITSET_CLEAR( ord->rw_bitset );
    1373       36138 :   FD_PACK_BITSET_CLEAR( ord->w_bitset  );
    1374             : 
    1375       36138 :   fd_txn_t * txn   = TXN(ord->txn);
    1376       36138 :   uchar * payload  = ord->txn->payload;
    1377             : 
    1378       36138 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, payload );
    1379             :   /* alt_adj is the pointer to the ALT expansion, adjusted so that if
    1380             :      account address n is the first that comes from the ALT, it can be
    1381             :      accessed with adj_lut[n]. */
    1382       36138 :   fd_acct_addr_t const * alt_adj = ord->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1383             : 
    1384       36138 :   ulong  cumulative_penalty = 0UL;
    1385       36138 :   ulong  penalty_i          = 0UL;
    1386             : 
    1387       36138 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    1388      121872 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1389       85734 :     fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    1390       85734 :     fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, acct, NULL );
    1391       85734 :     if( FD_UNLIKELY( q==NULL ) ) {
    1392       61522 :       q = bitset_map_insert( pack->acct_to_bitset, acct );
    1393       61522 :       q->ref_cnt                  = 0UL;
    1394       61522 :       q->first_instance           = ord;
    1395       61522 :       q->first_instance_was_write = 1;
    1396       61522 :       q->bit                      = FD_PACK_BITSET_FIRST_INSTANCE;
    1397       61522 :     } else if( FD_UNLIKELY( q->bit == FD_PACK_BITSET_FIRST_INSTANCE ) ) {
    1398        1844 :       q->bit = pack->bitset_avail[ pack->bitset_avail_cnt ];
    1399        1844 :       pack->bitset_avail_cnt = fd_ulong_if( !!pack->bitset_avail_cnt, pack->bitset_avail_cnt-1UL, 0UL );
    1400             : 
    1401        1844 :       FD_PACK_BITSET_SETN( q->first_instance->rw_bitset, q->bit );
    1402        1844 :       if( q->first_instance_was_write ) FD_PACK_BITSET_SETN( q->first_instance->w_bitset, q->bit );
    1403        1844 :     }
    1404       85734 :     ulong penalty = fd_ulong_max( q->ref_cnt, PENALTY_TREAP_THRESHOLD )-PENALTY_TREAP_THRESHOLD;
    1405       85734 :     if( FD_UNLIKELY( penalty ) ) {
    1406       17667 :       penalties  [ penalty_i ] = (ushort)penalty;
    1407       17667 :       penalty_idx[ penalty_i ] = (uchar )fd_txn_acct_iter_idx( iter );
    1408       17667 :       penalty_i++;
    1409       17667 :       cumulative_penalty += penalty;
    1410       17667 :     }
    1411             : 
    1412       85734 :     q->ref_cnt++;
    1413       85734 :     FD_PACK_BITSET_SETN( ord->rw_bitset, q->bit );
    1414       85734 :     FD_PACK_BITSET_SETN( ord->w_bitset , q->bit );
    1415       85734 :   }
    1416             : 
    1417       36138 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    1418      166977 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1419             : 
    1420      130839 :     fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    1421      130839 :     if( FD_UNLIKELY( fd_pack_unwritable_contains( &acct ) ) ) continue;
    1422             : 
    1423       79935 :     fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, acct, NULL );
    1424       79935 :     if( FD_UNLIKELY( q==NULL ) ) {
    1425       22341 :       q = bitset_map_insert( pack->acct_to_bitset, acct );
    1426       22341 :       q->ref_cnt                  = 0UL;
    1427       22341 :       q->first_instance           = ord;
    1428       22341 :       q->first_instance_was_write = 0;
    1429       22341 :       q->bit                      = FD_PACK_BITSET_FIRST_INSTANCE;
    1430       57594 :     } else if( FD_UNLIKELY( q->bit == FD_PACK_BITSET_FIRST_INSTANCE ) ) {
    1431        3603 :       q->bit = pack->bitset_avail[ pack->bitset_avail_cnt ];
    1432        3603 :       pack->bitset_avail_cnt = fd_ulong_if( !!pack->bitset_avail_cnt, pack->bitset_avail_cnt-1UL, 0UL );
    1433             : 
    1434        3603 :       FD_PACK_BITSET_SETN( q->first_instance->rw_bitset, q->bit );
    1435        3603 :       if( q->first_instance_was_write ) FD_PACK_BITSET_SETN( q->first_instance->w_bitset, q->bit );
    1436        3603 :     }
    1437             : 
    1438       79935 :     q->ref_cnt++;
    1439       79935 :     FD_PACK_BITSET_SETN( ord->rw_bitset, q->bit );
    1440       79935 :   }
    1441       36138 :   return cumulative_penalty;
    1442       36138 : }
    1443             : 
    1444             : int
    1445             : fd_pack_insert_txn_fini( fd_pack_t  * pack,
    1446             :                          fd_txn_e_t * txne,
    1447             :                          ulong        expires_at,
    1448       35730 :                          ulong      * delete_cnt ) {
    1449       35730 :   *delete_cnt = 0UL;
    1450             : 
    1451       35730 :   fd_pack_ord_txn_t * ord = (fd_pack_ord_txn_t *)txne;
    1452             : 
    1453       35730 :   fd_txn_t * txn   = TXN(txne->txnp);
    1454       35730 :   uchar * payload  = txne->txnp->payload;
    1455             : 
    1456       35730 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, payload );
    1457             :   /* alt_adj is the pointer to the ALT expansion, adjusted so that if
    1458             :      account address n is the first that comes from the ALT, it can be
    1459             :      accessed with adj_lut[n]. */
    1460       35730 :   fd_acct_addr_t const * alt_adj = ord->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1461             : 
    1462       35730 :   ord->expires_at = expires_at;
    1463             : 
    1464       35730 :   int est_result = fd_pack_estimate_rewards_and_compute( txne, ord, pack->lim );
    1465       35730 :   if( FD_UNLIKELY( !est_result ) ) REJECT( ESTIMATION_FAIL );
    1466       35727 :   int is_vote          = est_result==1;
    1467             : 
    1468       35727 :   int nonce_result = fd_pack_validate_durable_nonce( txne );
    1469       35727 :   if( FD_UNLIKELY( !nonce_result ) ) REJECT( INVALID_NONCE );
    1470       35724 :   int is_durable_nonce = nonce_result==2;
    1471       35724 :   ord->txn->flags &= ~FD_TXN_P_FLAGS_DURABLE_NONCE;
    1472       35724 :   ord->txn->flags |= fd_uint_if( is_durable_nonce, FD_TXN_P_FLAGS_DURABLE_NONCE, 0U );
    1473             : 
    1474       35724 :   int validation_result = validate_transaction( pack, ord, txn, accts, alt_adj, !!pack->bundle_meta_sz );
    1475       35724 :   if( FD_UNLIKELY( validation_result ) ) {
    1476         114 :     trp_pool_ele_release( pack->pool, ord );
    1477         114 :     return validation_result;
    1478         114 :   }
    1479             : 
    1480             :   /* Reject any transactions that have already expired */
    1481       35610 :   if( FD_UNLIKELY( expires_at<pack->expire_before                          ) ) REJECT( EXPIRED          );
    1482             : 
    1483       35598 :   int replaces = 0;
    1484             :   /* If it's a durable nonce and we already have one, delete one or the
    1485             :      other. */
    1486       35598 :   if( FD_UNLIKELY( is_durable_nonce ) ) {
    1487         120 :     fd_pack_ord_txn_t * same_nonce = noncemap_ele_query( pack->noncemap, txne, NULL, pack->pool );
    1488         120 :     if( FD_LIKELY( same_nonce ) ) { /* Seems like most nonce transactions are effectively duplicates */
    1489           9 :       if( FD_LIKELY( same_nonce->root == FD_ORD_TXN_ROOT_PENDING_BUNDLE || COMPARE_WORSE( ord, same_nonce ) ) ) REJECT( NONCE_PRIORITY );
    1490           3 :       ulong _delete_cnt = delete_transaction( pack, same_nonce, 0, 0 ); /* Not a bundle, so delete_full_bundle is 0 */
    1491           3 :       *delete_cnt += _delete_cnt;
    1492           3 :       replaces = 1;
    1493           3 :     }
    1494         120 :   }
    1495             : 
    1496       35592 :   if( FD_UNLIKELY( pack->pending_txn_cnt == pack->pack_depth ) ) {
    1497        3072 :     float threshold_score = (float)ord->rewards/(float)ord->compute_est;
    1498        3072 :     ulong _delete_cnt = delete_worst( pack, threshold_score, is_vote );
    1499        3072 :     *delete_cnt += _delete_cnt;
    1500        3072 :     if( FD_UNLIKELY( !_delete_cnt ) ) REJECT( PRIORITY );
    1501        3072 :     replaces = 1;
    1502        3072 :   }
    1503             : 
    1504       35592 :   ord->txn->flags &= ~(FD_TXN_P_FLAGS_BUNDLE | FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    1505       35592 :   ord->skip = FD_PACK_SKIP_CNT;
    1506             : 
    1507             :   /* At this point, we know we have space to insert the transaction and
    1508             :      we've committed to insert it. */
    1509             : 
    1510             :   /* Since the pool uses ushorts, the size of the pool is < USHORT_MAX.
    1511             :      Each transaction can reference an account at most once, which means
    1512             :      that the total number of references for an account is < USHORT_MAX.
    1513             :      If these were ulongs, the array would be 512B, which is kind of a
    1514             :      lot to zero out.*/
    1515       35592 :   ushort penalties[ FD_TXN_ACCT_ADDR_MAX ] = {0};
    1516       35592 :   uchar  penalty_idx[ FD_TXN_ACCT_ADDR_MAX ];
    1517       35592 :   ulong cumulative_penalty = populate_bitsets( pack, ord, penalties, penalty_idx );
    1518             : 
    1519       35592 :   treap_t * insert_into = pack->pending;
    1520             : 
    1521       35592 :   if( FD_UNLIKELY( cumulative_penalty && !is_vote ) ) { /* Optimize for high parallelism case */
    1522             :     /* Compute a weighted random choice */
    1523        6159 :     ulong roll = (ulong)fd_rng_uint_roll( pack->rng, (uint)cumulative_penalty ); /* cumulative_penalty < USHORT_MAX*64 < UINT_MAX */
    1524        6159 :     ulong i = 0UL;
    1525             :     /* Find the right one.  This can be done in O(log N), but I imagine
    1526             :        N is normally so small that doesn't matter. */
    1527       11941 :     while( roll>=penalties[i] ) roll -= (ulong)penalties[i++];
    1528             : 
    1529        6159 :     fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( penalty_idx[i] );
    1530        6159 :     fd_pack_penalty_treap_t * q = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    1531        6159 :     if( FD_UNLIKELY( q==NULL ) ) {
    1532          21 :       q = penalty_map_insert( pack->penalty_treaps, penalty_acct );
    1533          21 :       treap_new( q->penalty_treap, pack->pack_depth );
    1534          21 :     }
    1535        6159 :     insert_into = q->penalty_treap;
    1536        6159 :     ord->root = FD_ORD_TXN_ROOT_PENALTY( penalty_idx[i] );
    1537       29433 :   } else {
    1538       29433 :     ord->root = fd_int_if( is_vote, FD_ORD_TXN_ROOT_PENDING_VOTE, FD_ORD_TXN_ROOT_PENDING );
    1539             : 
    1540       29433 :     fd_pack_smallest_t * smallest = fd_ptr_if( is_vote, &pack->pending_votes_smallest[0], pack->pending_smallest );
    1541       29433 :     smallest->cus   = fd_ulong_min( smallest->cus,   ord->compute_est       );
    1542       29433 :     smallest->bytes = fd_ulong_min( smallest->bytes, txne->txnp->payload_sz );
    1543       29433 :   }
    1544             : 
    1545       35592 :   pack->pending_txn_cnt++;
    1546             : 
    1547       35592 :   sig2txn_ele_insert( pack->signature_map, ord, pack->pool );
    1548             : 
    1549       35592 :   if( FD_UNLIKELY( is_durable_nonce ) ) noncemap_ele_insert( pack->noncemap, ord, pack->pool );
    1550             : 
    1551       35592 :   fd_pack_expq_t temp[ 1 ] = {{ .expires_at = expires_at, .txn = ord }};
    1552       35592 :   expq_insert( pack->expiration_q, temp );
    1553             : 
    1554       35592 :   if( FD_LIKELY( is_vote ) ) insert_into = pack->pending_votes;
    1555             : 
    1556       35592 :   treap_ele_insert( insert_into, ord, pack->pool );
    1557       35592 :   return (is_vote) | (replaces<<1) | (is_durable_nonce<<2);
    1558       35592 : }
    1559             : #undef REJECT
    1560             : 
    1561             : fd_txn_e_t * const *
    1562             : fd_pack_insert_bundle_init( fd_pack_t          * pack,
    1563             :                             fd_txn_e_t *       * bundle,
    1564         381 :                             ulong                txn_cnt ) {
    1565         381 :   FD_TEST( txn_cnt<=FD_PACK_MAX_TXN_PER_BUNDLE  );
    1566         381 :   FD_TEST( trp_pool_free( pack->pool )>=txn_cnt );
    1567        1968 :   for( ulong i=0UL; i<txn_cnt; i++ ) bundle[ i ] = trp_pool_ele_acquire( pack->pool )->txn_e;
    1568         381 :   return bundle;
    1569         381 : }
    1570             : 
    1571             : void
    1572             : fd_pack_insert_bundle_cancel( fd_pack_t          * pack,
    1573             :                               fd_txn_e_t * const * bundle,
    1574         249 :                               ulong                txn_cnt ) {
    1575             :   /* There's no real reason these have to be released in reverse, but it
    1576             :      seems fitting to release them in the opposite order they were
    1577             :      acquired. */
    1578        1290 :   for( ulong i=0UL; i<txn_cnt; i++ ) trp_pool_ele_release( pack->pool, (fd_pack_ord_txn_t*)bundle[ txn_cnt-1UL-i ] );
    1579         249 : }
    1580             : 
    1581             : /* Explained below */
    1582             : #define BUNDLE_L_PRIME 37896771UL
    1583             : #define BUNDLE_N       313721UL
    1584         147 : #define RC_TO_REL_BUNDLE_IDX( r, c ) (BUNDLE_N - ((ulong)(r) * 1UL<<32)/((ulong)(c) * BUNDLE_L_PRIME))
    1585             : 
    1586             : int
    1587             : fd_pack_insert_bundle_fini( fd_pack_t          * pack,
    1588             :                             fd_txn_e_t * const * bundle,
    1589             :                             ulong                txn_cnt,
    1590             :                             ulong                expires_at,
    1591             :                             int                  initializer_bundle,
    1592             :                             void         const * bundle_meta,
    1593         381 :                             ulong              * delete_cnt ) {
    1594             : 
    1595         381 :   int err = 0;
    1596         381 :   *delete_cnt = 0UL;
    1597             : 
    1598         381 :   ulong pending_b_txn_cnt = treap_ele_cnt( pack->pending_bundles );
    1599             :     /* We want to prevent bundles from consuming the whole treap, but in
    1600             :        general, we assume bundles are lucrative.  We'll set the policy
    1601             :        on capping bundles at half of the pack depth.  We assume that the
    1602             :        bundles are coming in a pre-prioritized order, so it doesn't make
    1603             :        sense to drop an earlier bundle for this one.  That means that
    1604             :        really, the best thing to do is drop this one. */
    1605         381 :   if( FD_UNLIKELY( (!initializer_bundle)&(pending_b_txn_cnt+txn_cnt>pack->pack_depth/2UL) ) ) err = FD_PACK_INSERT_REJECT_PRIORITY;
    1606             : 
    1607         381 :   if( FD_UNLIKELY( expires_at<pack->expire_before                                         ) ) err = FD_PACK_INSERT_REJECT_EXPIRED;
    1608             : 
    1609             : 
    1610         381 :   int   replaces      = 0;
    1611         381 :   ulong nonce_txn_cnt = 0UL;
    1612             : 
    1613             :   /* Collect nonce hashes to detect duplicate nonces.
    1614             :      Use a constant-time duplicate-detection algorithm -- Vacant entries
    1615             :      have the MSB set, occupied entries are the noncemap hash, with the
    1616             :      MSB set to 0. */
    1617         381 :   ulong nonce_hash63[ FD_PACK_MAX_TXN_PER_BUNDLE ];
    1618        2286 :   for( ulong i=0UL; i<FD_PACK_MAX_TXN_PER_BUNDLE; i++ ) {
    1619        1905 :     nonce_hash63[ i ] = ULONG_MAX-i;
    1620        1905 :   }
    1621             : 
    1622        1959 :   for( ulong i=0UL; (i<txn_cnt) && !err; i++ ) {
    1623        1584 :     fd_pack_ord_txn_t * ord = (fd_pack_ord_txn_t *)bundle[ i ];
    1624             : 
    1625        1584 :     fd_txn_t const * txn     = TXN(bundle[ i ]->txnp);
    1626        1584 :     uchar    const * payload = bundle[ i ]->txnp->payload;
    1627             : 
    1628        1584 :     fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, payload );
    1629        1584 :     fd_acct_addr_t const * alt_adj = ord->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1630             : 
    1631        1584 :     int est_result = fd_pack_estimate_rewards_and_compute( bundle[ i ], ord, pack->lim );
    1632        1584 :     if( FD_UNLIKELY( est_result==0 ) ) { err = FD_PACK_INSERT_REJECT_ESTIMATION_FAIL;  break; }
    1633             :     /* Votes not allowed in bundles */
    1634        1584 :     if( FD_UNLIKELY( est_result==1 ) ) { err = FD_PACK_INSERT_REJECT_BUNDLE_BLACKLIST; break; }
    1635        1581 :     int nonce_result = fd_pack_validate_durable_nonce( ord->txn_e );
    1636        1581 :     if( FD_UNLIKELY( !nonce_result ) ) { err = FD_PACK_INSERT_REJECT_INVALID_NONCE;    break; }
    1637        1581 :     int is_durable_nonce = nonce_result==2;
    1638        1581 :     nonce_txn_cnt += !!is_durable_nonce;
    1639             : 
    1640        1581 :     bundle[ i ]->txnp->flags |= FD_TXN_P_FLAGS_BUNDLE;
    1641        1581 :     bundle[ i ]->txnp->flags &= ~(FD_TXN_P_FLAGS_INITIALIZER_BUNDLE | FD_TXN_P_FLAGS_DURABLE_NONCE);
    1642        1581 :     bundle[ i ]->txnp->flags |= fd_uint_if( initializer_bundle, FD_TXN_P_FLAGS_INITIALIZER_BUNDLE, 0U );
    1643        1581 :     bundle[ i ]->txnp->flags |= fd_uint_if( is_durable_nonce,   FD_TXN_P_FLAGS_DURABLE_NONCE,      0U );
    1644        1581 :     ord->skip = FD_PACK_SKIP_CNT;
    1645        1581 :     ord->expires_at = expires_at;
    1646             : 
    1647        1581 :     if( FD_UNLIKELY( is_durable_nonce ) ) {
    1648        1032 :       nonce_hash63[ i ] = noncemap_key_hash( ord->txn_e, pack->noncemap->seed ) & 0x7FFFFFFFFFFFFFFFUL;
    1649        1032 :       fd_pack_ord_txn_t * same_nonce = noncemap_ele_query( pack->noncemap, ord->txn_e, NULL, pack->pool );
    1650        1032 :       if( FD_LIKELY( same_nonce ) ) {
    1651             :         /* bundles take priority over non-bundles, and earlier bundles
    1652             :            take priority over later bundles. */
    1653           6 :         if( FD_UNLIKELY( same_nonce->txn->flags & FD_TXN_P_FLAGS_BUNDLE ) ) {
    1654           3 :           err = FD_PACK_INSERT_REJECT_NONCE_PRIORITY;
    1655           3 :           break;
    1656           3 :         } else {
    1657           3 :           ulong _delete_cnt = delete_transaction( pack, same_nonce, 0, 0 );
    1658           3 :           *delete_cnt += _delete_cnt;
    1659           3 :           replaces = 1;
    1660           3 :         }
    1661           6 :       }
    1662        1032 :     }
    1663             : 
    1664        1578 :     int validation_result = validate_transaction( pack, ord, txn, accts, alt_adj, !initializer_bundle );
    1665        1578 :     if( FD_UNLIKELY( validation_result ) ) { err = validation_result; break; }
    1666        1578 :   }
    1667             : 
    1668         381 :   if( FD_UNLIKELY( err ) ) {
    1669           6 :     fd_pack_insert_bundle_cancel( pack, bundle, txn_cnt );
    1670           6 :     return err;
    1671           6 :   }
    1672             : 
    1673         375 :   if( FD_UNLIKELY( initializer_bundle && pending_b_txn_cnt>0UL ) ) {
    1674           0 :     treap_rev_iter_t _cur=treap_rev_iter_init( pack->pending_bundles, pack->pool );
    1675           0 :     FD_TEST( !treap_rev_iter_done( _cur ) );
    1676           0 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pack->pool );
    1677           0 :     int is_ib = !!(cur->txn->flags & FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    1678             : 
    1679             :     /* Delete the previous IB if there is one */
    1680           0 :     if( FD_UNLIKELY( is_ib && 0UL==RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est ) ) ) {
    1681           0 :       ulong _delete_cnt = delete_transaction( pack, cur, 1, 0 );
    1682           0 :       *delete_cnt += _delete_cnt;
    1683           0 :     }
    1684           0 :   }
    1685             : 
    1686         384 :   while( FD_UNLIKELY( pack->pending_txn_cnt+txn_cnt > pack->pack_depth ) ) {
    1687           9 :     ulong _delete_cnt = delete_worst( pack, FLT_MAX, 0 );
    1688           9 :     *delete_cnt += _delete_cnt;
    1689           9 :     if( FD_UNLIKELY( !_delete_cnt ) ) {
    1690           0 :       fd_pack_insert_bundle_cancel( pack, bundle, txn_cnt );
    1691           0 :       return FD_PACK_INSERT_REJECT_PRIORITY;
    1692           0 :     }
    1693           9 :     replaces = 1;
    1694           9 :   }
    1695             : 
    1696         375 :   if( FD_UNLIKELY( !pending_b_txn_cnt ) ) {
    1697         375 :     pack->relative_bundle_idx = 1UL;
    1698         375 :   }
    1699             : 
    1700         375 :   if( FD_LIKELY( bundle_meta ) ) {
    1701           0 :     memcpy( (uchar *)pack->bundle_meta + (ulong)((fd_pack_ord_txn_t *)bundle[0]-pack->pool)*pack->bundle_meta_sz, bundle_meta, pack->bundle_meta_sz );
    1702           0 :   }
    1703             : 
    1704         375 :   if( FD_UNLIKELY( nonce_txn_cnt>1UL ) ) {
    1705             :     /* Do a ILP-friendly duplicate detect, naive O(n^2) algo.  With max
    1706             :        5 txns per bundle, this requires 10 comparisons.  ~ 25 cycle.  */
    1707         375 :     uint conflict_detected = 0u;
    1708        1875 :     for( ulong i=0UL; i<FD_PACK_MAX_TXN_PER_BUNDLE-1; i++ ) {
    1709        5250 :       for( ulong j=i+1; j<FD_PACK_MAX_TXN_PER_BUNDLE; j++ ) {
    1710        3750 :         ulong const ele_i = nonce_hash63[ i ];
    1711        3750 :         ulong const ele_j = nonce_hash63[ j ];
    1712        3750 :         conflict_detected |= (ele_i==ele_j);
    1713        3750 :       }
    1714        1500 :     }
    1715         375 :     if( FD_UNLIKELY( conflict_detected ) ) {
    1716         243 :       fd_pack_insert_bundle_cancel( pack, bundle, txn_cnt );
    1717         243 :       return FD_PACK_INSERT_REJECT_NONCE_CONFLICT;
    1718         243 :     }
    1719         375 :   }
    1720             : 
    1721             :   /* We put bundles in a treap just like all the other transactions, but
    1722             :      we actually want to sort them in a very specific order; the order
    1723             :      within the bundle is determined at bundle creation time, and the
    1724             :      order among the bundles is FIFO.  However, it's going to be a pain
    1725             :      to use a different sorting function for this treap, since it's
    1726             :      fixed as part of the treap creation for performance.  Don't fear
    1727             :      though; we can pull a cool math trick out of the bag to shoehorn
    1728             :      the order we'd like into the sort function we need, and to get even
    1729             :      more.
    1730             : 
    1731             :      Recall that the sort function is r_i/c_i, smallest to largest,
    1732             :      where r_i is the rewards and c_i is the cost units.  r_i and c_i
    1733             :      are both uints, and the comparison is done by cross-multiplication
    1734             :      as ulongs.  We actually use the c_i value for testing if
    1735             :      transactions fit, etc.  so let's assume that's fixed, and we know
    1736             :      it's in the range [1020, 1,551,570].
    1737             : 
    1738             :      This means, if c_0, c_1, ... c_4 are the CU costs of the
    1739             :      transactions in the first bundle, we require r_0/c_0 > r_1/c_1 >
    1740             :      ... > r_4/c_4.  Then, if c_5, ... c_9 are the CU costs of the
    1741             :      transactions in the second bundle, we also require that r_4/c_4 >
    1742             :      r_5/c_5.  For convenience, we'll impose a slightly stronger
    1743             :      constraint: we want the kth bundle to obey L*(N-k) <= r_i/c_i <
    1744             :      L*(N+1-k), for fixed constants L and N, real and integer,
    1745             :      respectively, that we'll determine. For example, this means r_4/c_4
    1746             :      >= L*N > r_5/c_5.  This enables us to group the transactions in the
    1747             :      same bundle more easily.
    1748             : 
    1749             :      For convenience in the math below, we'll set j=N-k and relabel the
    1750             :      transactions from the jth bundle c_0, ... c_4.
    1751             :      From above, we know that Lj <= r_4/c_4.  We'd like to make it as
    1752             :      close as possible given that r_4 is an integers.  Thus, put
    1753             :      r_4 = ceil( c_4 * Lj ).  r_4 is clearly an integer, and it satisfies
    1754             :      the required inequality because:
    1755             :             r_4/c_4 = ceil( c_4 * Lj)/c_4 >= c_4*Lj / c_4 >= Lj.
    1756             : 
    1757             :      Following in the same spirit, put r_3 = ceil( c_3 * (r_4+1)/c_4 ).
    1758             :      Again, r_3 is clearly an integer, and
    1759             :                 r_3/c_3  = ceil(c_3*(r_4+1)/c_4)/c_3
    1760             :                         >= (c_3*(r_4+1))/(c_3 * c_4)
    1761             :                         >= r_4/c_4 + 1/c_4
    1762             :                         >  r_4/c_4.
    1763             :      Following the pattern, we put
    1764             :                 r_2 = ceil( c_2 * (r_3+1)/c_3 )
    1765             :                 r_1 = ceil( c_1 * (r_2+1)/c_2 )
    1766             :                 r_0 = ceil( c_0 * (r_1+1)/c_1 )
    1767             :      which work for the same reason that as r_3.
    1768             : 
    1769             :      We now need for r_0 to satisfy the final inequality with L, and
    1770             :      we'll use this to guide our choice of L.  Theoretically, r_0 can be
    1771             :      expressed in terms of L, j, and c_0, ... c_4, but that's a truly
    1772             :      inscrutible expression.  Instead, we need some bounds so we can get
    1773             :      rid of all the ceil using the property that x <= ceil(x) < x+1.
    1774             :                      c_4 * Lj <= r_4 < c_4 * Lj + 1
    1775             :      The lower bound on r_3 is easy:
    1776             :          r_3 >= c_3 * (c_4 * Lj + 1)/c_4 = c_3 * Lj + c_3/c_4
    1777             :      For the upper bound,
    1778             :          r_3 < 1 + c_3*(r_4+1)/c_4 < 1 + c_3*(c_4*Lj+1 + 1)/c_4
    1779             :                                    = 1 + c_3 * Lj + 2*c_3/c_4
    1780             :      Continuing similarly gives
    1781             :        c_2*Lj +                     c_2/c_3 + c_2/c_4 <= r_2
    1782             :        c_1*Lj +           c_1/c_2 + c_1/c_c + c_1/c_4 <= r_1
    1783             :        c_0*Lj + c_0/c_1 + c_0/c_2 + c_0/c_3 + c_0/c_4 <= r_0
    1784             :      and
    1785             :        r_2 < 1 + c_2*Lj +                       2c_2/c_3 + 2c_2/c_4
    1786             :        r_1 < 1 + c_1*Lj +            2c_1/c_2 + 2c_1/c_3 + 2c_1/c_4
    1787             :        r_0 < 1 + c_0*Lj + 2c_0/c_1 + 2c_0/c_2 + 2c_0/c_3 + 2c_0/c_4.
    1788             : 
    1789             :      Setting L(j+1)>=(1 + c_0*Lj+2c_0/c_1+2c_0/c_2+2c_0/c_3+2c_0/c_4)/c_0
    1790             :      is then sufficient to ensure the whole sequence of 5 fits between Lj
    1791             :      and L(j+1).  Simplifying gives
    1792             :               L<= 1/c_0 + 2/c_1 + 2/c_2 + 2/c_3 + 2/c_4
    1793             :      but L must be a constant and not depend on individual values of c_i,
    1794             :      so, given that c_i >= 1020, we set L = 9/1020.
    1795             : 
    1796             :      Now all that remains is to determine N.  It's a bit unfortunate
    1797             :      that we require N, since it limits our capacity, but it's necessary
    1798             :      in any system that tries to compute priorities to enforce a FIFO
    1799             :      order.  If we've inserted more than N bundles without ever having
    1800             :      the bundle treap go empty, we'll briefly break the FIFO ordering as
    1801             :      we underflow.
    1802             : 
    1803             :      Thus, we'd like to make N as big as possible, avoiding overflow.
    1804             :      r_0, ..., r_4 are all uints, and taking the bounds from above,
    1805             :      given that for any i, i' c_i/c_{i'} <= 1551570/1020 < 1522, we have
    1806             :                r_i < 1 + 1551570 * Lj + 8*1522.
    1807             :      To avoid overflow, we assert the right-hand side is < 2^32, which
    1808             :      implies N <= 313721.
    1809             : 
    1810             :      We want to use a fixed point representation for L so that the
    1811             :      entire computation can be done with integer arithmetic.  We can do
    1812             :      the arithmetic as ulongs, which means defining L' >= L * 2^s, and
    1813             :      we compute ceil( c_4*Lj ) as floor( (c_4 * L' * j + 2^s - 1)/2^s ),
    1814             :      so c_4 * L' * j + 2^s should fit in a ulong.  With j<=N, this gives
    1815             :      s<=32, so we set s=32, which means L' = 37896771 >= 9/1020 * 2^32.
    1816             :      Note that 1 + 1551570 * L' * N + 8*1522 + 2^32 is approximately
    1817             :      2^63.999992.
    1818             : 
    1819             :      Note that this is all checked by a proof of the code translated
    1820             :      into Z3.  Unfortunately CBMC was too slow to prove this code
    1821             :      directly. */
    1822         132 :      FD_STATIC_ASSERT( FD_PACK_MIN_TXN_COST==   1020UL, adjust_constants );
    1823         132 :      FD_STATIC_ASSERT( FD_PACK_MAX_TXN_COST==1551570UL, adjust_constants );
    1824         279 : #define BUNDLE_L_PRIME 37896771UL
    1825         279 : #define BUNDLE_N       313721UL
    1826             : 
    1827         132 :   if( FD_UNLIKELY( pack->relative_bundle_idx>BUNDLE_N ) ) {
    1828           0 :     FD_LOG_WARNING(( "Too many bundles inserted without allowing pending bundles to go empty. "
    1829           0 :                      "Ordering of bundles may be incorrect." ));
    1830           0 :     pack->relative_bundle_idx = 1UL;
    1831           0 :   }
    1832         132 :   ulong bundle_idx = fd_ulong_if( initializer_bundle, 0UL, pack->relative_bundle_idx );
    1833         132 :   insert_bundle_impl( pack, bundle_idx, txn_cnt, (fd_pack_ord_txn_t * *)bundle, expires_at );
    1834             :   /* if IB this is max( 1, x ), which is x.  Otherwise, this is max(x,
    1835             :      x+1) which is x++ */
    1836         132 :   pack->relative_bundle_idx = fd_ulong_max( bundle_idx+1UL, pack->relative_bundle_idx );
    1837             : 
    1838         132 :   return (0) | (replaces<<1) | ((!!nonce_txn_cnt)<<2);
    1839         375 : }
    1840             : static inline void
    1841             : insert_bundle_impl( fd_pack_t           * pack,
    1842             :                     ulong                 bundle_idx,
    1843             :                     ulong                 txn_cnt,
    1844             :                     fd_pack_ord_txn_t * * bundle,
    1845         132 :                     ulong                 expires_at ) {
    1846         132 :   ulong prev_reward = ((BUNDLE_L_PRIME * (BUNDLE_N - bundle_idx))) - 1UL;
    1847         132 :   ulong prev_cost = 1UL<<32;
    1848             : 
    1849             :   /* Assign last to first */
    1850         678 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
    1851         546 :     fd_pack_ord_txn_t * ord = bundle[ txn_cnt-1UL - i ];
    1852         546 :     ord->rewards = (uint)(((ulong)ord->compute_est * (prev_reward + 1UL) + prev_cost-1UL)/prev_cost);
    1853         546 :     ord->root    = FD_ORD_TXN_ROOT_PENDING_BUNDLE;
    1854         546 :     prev_reward = ord->rewards;
    1855         546 :     prev_cost   = ord->compute_est;
    1856             : 
    1857             :     /* The penalty information isn't used for bundles. */
    1858         546 :     ushort penalties  [ FD_TXN_ACCT_ADDR_MAX ];
    1859         546 :     uchar  penalty_idx[ FD_TXN_ACCT_ADDR_MAX ];
    1860         546 :     populate_bitsets( pack, ord, penalties, penalty_idx );
    1861             : 
    1862         546 :     treap_ele_insert( pack->pending_bundles, ord, pack->pool );
    1863         546 :     pack->pending_txn_cnt++;
    1864             : 
    1865         546 :     if( FD_UNLIKELY( ord->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) noncemap_ele_insert( pack->noncemap, ord, pack->pool );
    1866         546 :     sig2txn_ele_insert( pack->signature_map, ord, pack->pool );
    1867             : 
    1868         546 :     fd_pack_expq_t temp[ 1 ] = {{ .expires_at = expires_at, .txn = ord }};
    1869         546 :     expq_insert( pack->expiration_q, temp );
    1870         546 :   }
    1871             : 
    1872         132 : }
    1873             : 
    1874             : void const *
    1875           0 : fd_pack_peek_bundle_meta( fd_pack_t const * pack ) {
    1876           0 :   int ib_state = pack->initializer_bundle_state;
    1877           0 :   if( FD_UNLIKELY( (ib_state==FD_PACK_IB_STATE_PENDING) | (ib_state==FD_PACK_IB_STATE_FAILED) ) ) return NULL;
    1878             : 
    1879           0 :   treap_rev_iter_t _cur=treap_rev_iter_init( pack->pending_bundles, pack->pool );
    1880           0 :   if( FD_UNLIKELY( treap_rev_iter_done( _cur ) ) ) return NULL; /* empty */
    1881             : 
    1882           0 :   fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pack->pool );
    1883           0 :   int is_ib = !!(cur->txn->flags & FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    1884           0 :   if( FD_UNLIKELY( is_ib ) ) return NULL;
    1885             : 
    1886           0 :   return (void const *)((uchar const *)pack->bundle_meta + (ulong)_cur * pack->bundle_meta_sz);
    1887           0 : }
    1888             : 
    1889             : void
    1890           3 : fd_pack_set_initializer_bundles_ready( fd_pack_t * pack ) {
    1891           3 :   pack->initializer_bundle_state = FD_PACK_IB_STATE_READY;
    1892           3 : }
    1893             : 
    1894             : void
    1895       14871 : fd_pack_metrics_write( fd_pack_t const * pack ) {
    1896       14871 :   ulong pending_regular = treap_ele_cnt( pack->pending        );
    1897       14871 :   ulong pending_votes  = treap_ele_cnt( pack->pending_votes   );
    1898       14871 :   ulong pending_bundle = treap_ele_cnt( pack->pending_bundles );
    1899       14871 :   ulong conflicting    = pack->pending_txn_cnt - pending_votes - pending_bundle - treap_ele_cnt( pack->pending );
    1900       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_ALL,         pack->pending_txn_cnt       );
    1901       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_REGULAR,     pending_regular             );
    1902       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_VOTES,       pending_votes               );
    1903       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_CONFLICTING, conflicting                 );
    1904       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_BUNDLES,     pending_bundle              );
    1905       14871 :   FD_MGAUGE_SET( PACK, TXN_PENDING_SMALLEST_CU,      pack->pending_smallest->cus );
    1906             : 
    1907       14871 :   FD_MCNT_ENUM_COPY( PACK, TXN_SCHEDULED, pack->sched_results );
    1908       14871 : }
    1909             : 
    1910             : void
    1911           0 : fd_pack_get_sched_metrics( fd_pack_t const * pack, ulong * metrics ) {
    1912           0 :   fd_memcpy( metrics, pack->sched_results, sizeof(pack->sched_results) );
    1913           0 : }
    1914             : 
    1915             : typedef struct {
    1916             :   ushort clear_rw_bit;
    1917             :   ushort clear_w_bit;
    1918             : } release_result_t;
    1919             : 
    1920             : static inline release_result_t
    1921             : release_bit_reference( fd_pack_t            * pack,
    1922      161757 :                        fd_acct_addr_t const * acct ) {
    1923             : 
    1924      161757 :   fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, *acct, NULL );
    1925      161757 :   FD_TEST( q ); /* q==NULL not be possible */
    1926             : 
    1927      161757 :   q->ref_cnt--;
    1928             : 
    1929      161757 :   if( FD_UNLIKELY( q->ref_cnt==0UL ) ) {
    1930       80074 :     ushort bit = q->bit;
    1931       80074 :     bitset_map_remove( pack->acct_to_bitset, q );
    1932       80074 :     if( FD_LIKELY( bit<FD_PACK_BITSET_MAX ) ) pack->bitset_avail[ ++(pack->bitset_avail_cnt) ] = bit;
    1933             : 
    1934       80074 :     fd_pack_addr_use_t * use = acct_uses_query( pack->acct_in_use,  *acct, NULL );
    1935       80074 :     if( FD_LIKELY( use ) ) {
    1936       75607 :       use->in_use_by |= FD_PACK_IN_USE_BIT_CLEARED;
    1937       75607 :       release_result_t ret = { .clear_rw_bit = bit,
    1938       75607 :                                .clear_w_bit = fd_ushort_if( !!(use->in_use_by & FD_PACK_IN_USE_WRITABLE), bit, FD_PACK_BITSET_MAX ) };
    1939       75607 :       return ret;
    1940       75607 :     }
    1941       80074 :   }
    1942       86150 :   release_result_t ret = { .clear_rw_bit = FD_PACK_BITSET_MAX, .clear_w_bit = FD_PACK_BITSET_MAX };
    1943       86150 :   return ret;
    1944      161757 : }
    1945             : 
    1946             : typedef struct {
    1947             :   ulong cus_scheduled;
    1948             :   ulong txns_scheduled;
    1949             :   ulong bytes_scheduled;
    1950             :   ulong alloc_scheduled;
    1951             : } sched_return_t;
    1952             : 
    1953             : static inline sched_return_t
    1954             : fd_pack_schedule_impl( fd_pack_t          * pack,
    1955             :                        treap_t            * sched_from,
    1956             :                        ulong                cu_limit,
    1957             :                        ulong                txn_limit,
    1958             :                        ulong                byte_limit,
    1959             :                        ulong                alloc_limit,
    1960             :                        ulong                bank_tile,
    1961             :                        fd_pack_smallest_t * smallest_in_treap,
    1962             :                        ulong              * use_by_bank_txn,
    1963       29649 :                        fd_txn_e_t         * out ) {
    1964             : 
    1965       29649 :   fd_pack_ord_txn_t   * pool         = pack->pool;
    1966       29649 :   fd_pack_addr_use_t  * acct_in_use  = pack->acct_in_use;
    1967       29649 :   wcost_map_t         * writer_costs = pack->writer_costs;
    1968       29649 :   fd_pack_wcost_ele_t * writers      = pack->writers;
    1969       29649 :   wcost_dlist_t       * written_list = pack->written_list;
    1970             : 
    1971       29649 :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
    1972       29649 :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
    1973       29649 :   FD_PACK_BITSET_COPY( bitset_rw_in_use, pack->bitset_rw_in_use );
    1974       29649 :   FD_PACK_BITSET_COPY( bitset_w_in_use,  pack->bitset_w_in_use  );
    1975             : 
    1976       29649 :   fd_pack_addr_use_t * use_by_bank     = pack->use_by_bank    [bank_tile];
    1977       29649 :   ulong                use_by_bank_cnt = pack->use_by_bank_cnt[bank_tile];
    1978             : 
    1979       29649 :   ulong max_write_cost_per_acct = pack->lim->max_write_cost_per_acct;
    1980             : 
    1981       29649 :   ushort compressed_slot_number = pack->compressed_slot_number;
    1982             : 
    1983       29649 :   ulong txns_scheduled  = 0UL;
    1984       29649 :   ulong cus_scheduled   = 0UL;
    1985       29649 :   ulong bytes_scheduled = 0UL;
    1986       29649 :   ulong alloc_scheduled = 0UL;
    1987             : 
    1988       29649 :   ulong bank_tile_mask = 1UL << bank_tile;
    1989             : 
    1990       29649 :   ulong fast_path     = 0UL;
    1991       29649 :   ulong slow_path     = 0UL;
    1992       29649 :   ulong cu_limit_c    = 0UL;
    1993       29649 :   ulong byte_limit_c  = 0UL;
    1994       29649 :   ulong alloc_limit_c = 0UL;
    1995       29649 :   ulong write_limit_c = 0UL;
    1996       29649 :   ulong skip_c        = 0UL;
    1997             : 
    1998       29649 :   ulong min_cus   = ULONG_MAX;
    1999       29649 :   ulong min_bytes = ULONG_MAX;
    2000             : 
    2001       29649 :   if( FD_UNLIKELY( (cu_limit<smallest_in_treap->cus) | (txn_limit==0UL) | (byte_limit<smallest_in_treap->bytes) ) ) {
    2002       14960 :     sched_return_t to_return = { .cus_scheduled = 0UL, .txns_scheduled = 0UL, .bytes_scheduled = 0UL };
    2003       14960 :     return to_return;
    2004       14960 :   }
    2005             : 
    2006       14689 :   treap_rev_iter_t prev = treap_idx_null();
    2007      246156 :   for( treap_rev_iter_t _cur=treap_rev_iter_init( sched_from, pool ); !treap_rev_iter_done( _cur ); _cur=prev ) {
    2008             :     /* Capture next so that we can delete while we iterate. */
    2009      234331 :     prev = treap_rev_iter_next( _cur, pool );
    2010             : 
    2011      234331 : #   if FD_HAS_X86
    2012      234331 :     _mm_prefetch( &(pool[ prev ].prev),      _MM_HINT_T0 );
    2013      234331 : #   endif
    2014             : 
    2015      234331 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2016             : 
    2017      234331 :     min_cus   = fd_ulong_min( min_cus,   cur->compute_est     );
    2018      234331 :     min_bytes = fd_ulong_min( min_bytes, cur->txn->payload_sz );
    2019             : 
    2020      234331 :     ulong conflicts = 0UL;
    2021             : 
    2022      234331 :     if( FD_UNLIKELY( cur->compute_est>cu_limit ) ) {
    2023             :       /* Too big to be scheduled at the moment, but might be okay for
    2024             :          the next microblock, so we don't want to delay it. */
    2025           0 :       cu_limit_c++;
    2026           0 :       continue;
    2027           0 :     }
    2028             : 
    2029      234331 :     if( FD_UNLIKELY( cur->txn->pack_alloc>alloc_limit ) ) {
    2030             :       /* We don't want to consider this until the next block, but
    2031             :          checking alloc is as cheap as checking cur->skip, so there's
    2032             :          not a big difference. */
    2033          18 :       alloc_limit_c++;
    2034          18 :       continue;
    2035          18 :     }
    2036             : 
    2037             :     /* Likely? Unlikely? */
    2038      234313 :     if( FD_LIKELY( !FD_PACK_BITSET_INTERSECT4_EMPTY( bitset_rw_in_use, bitset_w_in_use, cur->w_bitset, cur->rw_bitset ) ) ) {
    2039      204013 :       fast_path++;
    2040      204013 :       continue;
    2041      204013 :     }
    2042             : 
    2043       30300 :     if( FD_UNLIKELY( cur->skip==compressed_slot_number ) ) {
    2044           0 :       skip_c++;
    2045           0 :       continue;
    2046           0 :     }
    2047             : 
    2048             :     /* If skip>FD_PACK_MAX_SKIP but not compressed_slot_number, it means
    2049             :        it's the compressed slot number of a previous slot.  We don't
    2050             :        care unless we're going to update the value though, so we don't
    2051             :        need to eagerly reset it to FD_PACK_MAX_SKIP.
    2052             :        compressed_slot_number is a ushort, so it's possible for it to
    2053             :        roll over, but the transaction lifetime is much shorter than
    2054             :        that, so it won't be a problem. */
    2055             : 
    2056       30300 :     if( FD_UNLIKELY( cur->txn->payload_sz>byte_limit ) ) {
    2057           6 :       byte_limit_c++;
    2058           6 :       continue;
    2059           6 :     }
    2060             : 
    2061             : 
    2062       30294 :     fd_txn_t const * txn = TXN(cur->txn);
    2063       30294 :     fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, cur->txn->payload );
    2064       30294 :     fd_acct_addr_t const * alt_adj = cur->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    2065             :     /* Check conflicts between this transaction's writable accounts and
    2066             :        current readers */
    2067       30294 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    2068       97293 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2069             : 
    2070       67002 :       fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    2071             : 
    2072       67002 :       fd_pack_wcost_ele_t const * in_wcost_table = wcost_map_ele_query_const( writer_costs, &acct, NULL, writers );
    2073       67002 :       if( FD_UNLIKELY( in_wcost_table && in_wcost_table->total_cost+cur->compute_est > max_write_cost_per_acct ) ) {
    2074             :         /* Can't be scheduled until the next block */
    2075           3 :         conflicts = ULONG_MAX;
    2076           3 :         break;
    2077           3 :       }
    2078             : 
    2079       66999 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use, acct, NULL );
    2080       66999 :       if( FD_UNLIKELY( use ) ) conflicts |= use->in_use_by; /* break? */
    2081       66999 :     }
    2082             : 
    2083       30294 :     if( FD_UNLIKELY( conflicts==ULONG_MAX ) ) {
    2084             :       /* The logic for how to adjust skip is a bit complicated, and we
    2085             :          want to do it branchlessly. Let psc=FD_PACK_SKIP_CNT,
    2086             :            Before                   After
    2087             :              1               compressed_slot_number
    2088             :            x in [2, psc]             x-1
    2089             :            x where x>psc            psc-1
    2090             : 
    2091             :          Set A=min(x, 5), B=min(A-2, compressed_slot_number-1), and
    2092             :          note that compressed_slot_number is in [psc+1, USHORT_MAX].
    2093             :          Then:
    2094             :              x                A     A-2          B      B+1
    2095             :              1                1  USHORT_MAX    csn-1    csn
    2096             :            x in [2, psc]      x     x-2         x-2     x-1
    2097             :            x where x>psc     psc   psc-2       psc-2   psc-1
    2098             :          So B+1 is the desired value. */
    2099           3 :       cur->skip = (ushort)(1+fd_ushort_min( (ushort)(compressed_slot_number-1),
    2100           3 :                                             (ushort)(fd_ushort_min( cur->skip, FD_PACK_SKIP_CNT )-2) ) );
    2101           3 :       write_limit_c++;
    2102           3 :       continue;
    2103           3 :     }
    2104             : 
    2105       30291 :     if( FD_UNLIKELY( conflicts ) ) {
    2106           6 :       slow_path++;
    2107           6 :       continue;
    2108           6 :     }
    2109             : 
    2110             :     /* Check conflicts between this transaction's readonly accounts and
    2111             :        current writers */
    2112       30285 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    2113      135999 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2114             : 
    2115      105714 :       fd_acct_addr_t const * acct = ACCT_ITER_TO_PTR( iter );
    2116      105714 :       if( fd_pack_unwritable_contains( acct ) ) continue; /* No need to track sysvars because they can't be writable */
    2117             : 
    2118       64965 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use,  *acct, NULL );
    2119       64965 :       if( use ) conflicts |= (use->in_use_by & FD_PACK_IN_USE_WRITABLE) ? use->in_use_by : 0UL;
    2120       64965 :     }
    2121             : 
    2122       30285 :     if( FD_UNLIKELY( conflicts ) ) {
    2123           0 :       slow_path++;
    2124           0 :       continue;
    2125           0 :     }
    2126             : 
    2127             :     /* Include this transaction in the microblock! */
    2128       30285 :     FD_PACK_BITSET_OR( bitset_rw_in_use, cur->rw_bitset );
    2129       30285 :     FD_PACK_BITSET_OR( bitset_w_in_use,  cur->w_bitset  );
    2130             : 
    2131       30285 :     fd_txn_p_t * out_txnp = out->txnp;
    2132       30285 :     if(
    2133       10095 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    2134       10095 :         FD_LIKELY( cur->txn->payload_sz>=1024UL )
    2135             : #else
    2136       20190 :         0
    2137       20190 : #endif
    2138       30285 :       ) {
    2139        4224 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    2140        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+   0UL), _mm512_load_epi64( cur->txn->payload+   0UL ) );
    2141        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+  64UL), _mm512_load_epi64( cur->txn->payload+  64UL ) );
    2142        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 128UL), _mm512_load_epi64( cur->txn->payload+ 128UL ) );
    2143        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 192UL), _mm512_load_epi64( cur->txn->payload+ 192UL ) );
    2144        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 256UL), _mm512_load_epi64( cur->txn->payload+ 256UL ) );
    2145        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 320UL), _mm512_load_epi64( cur->txn->payload+ 320UL ) );
    2146        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 384UL), _mm512_load_epi64( cur->txn->payload+ 384UL ) );
    2147        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 448UL), _mm512_load_epi64( cur->txn->payload+ 448UL ) );
    2148        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 512UL), _mm512_load_epi64( cur->txn->payload+ 512UL ) );
    2149        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 576UL), _mm512_load_epi64( cur->txn->payload+ 576UL ) );
    2150        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 640UL), _mm512_load_epi64( cur->txn->payload+ 640UL ) );
    2151        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 704UL), _mm512_load_epi64( cur->txn->payload+ 704UL ) );
    2152        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 768UL), _mm512_load_epi64( cur->txn->payload+ 768UL ) );
    2153        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 832UL), _mm512_load_epi64( cur->txn->payload+ 832UL ) );
    2154        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 896UL), _mm512_load_epi64( cur->txn->payload+ 896UL ) );
    2155        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 960UL), _mm512_load_epi64( cur->txn->payload+ 960UL ) );
    2156        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+1024UL), _mm512_load_epi64( cur->txn->payload+1024UL ) );
    2157        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+1088UL), _mm512_load_epi64( cur->txn->payload+1088UL ) );
    2158        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+1152UL), _mm512_load_epi64( cur->txn->payload+1152UL ) );
    2159        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+1216UL), _mm512_load_epi64( cur->txn->payload+1216UL ) );
    2160             : 
    2161             :       /* For V1 transactions, the payload can be up to 4096 bytes so we copy an additional 2816 bytes. */
    2162        4224 :       if( FD_UNLIKELY( txn->transaction_version==FD_TXN_V1 ) ) {
    2163           0 :         for( ulong off=1280UL; off<FD_TPU_MTU; off+=64UL ) {
    2164           0 :           _mm512_stream_si512( (void*)(out_txnp->payload+off), _mm512_load_epi64( cur->txn->payload+off ) );
    2165           0 :         }
    2166           0 :       }
    2167        4224 : #endif
    2168       26061 :     } else {
    2169       26061 :       fd_memcpy( out_txnp->payload, cur->txn->payload, cur->txn->payload_sz );
    2170       26061 :     }
    2171             : 
    2172       30285 :     out_txnp->payload_sz                                = cur->txn->payload_sz;
    2173       30285 :     out_txnp->pack_cu.requested_exec_plus_acct_data_cus = cur->txn->pack_cu.requested_exec_plus_acct_data_cus;
    2174       30285 :     out_txnp->pack_cu.non_execution_cus                 = cur->txn->pack_cu.non_execution_cus;
    2175       30285 :     out_txnp->pack_alloc                                = cur->txn->pack_alloc;
    2176       30285 :     out_txnp->scheduler_arrival_time_nanos              = cur->txn->scheduler_arrival_time_nanos;
    2177       30285 :     out_txnp->first_seen_nanos                          = cur->txn->first_seen_nanos;
    2178       30285 :     out_txnp->source_tpu                                = cur->txn->source_tpu;
    2179       30285 :     out_txnp->source_ipv4                               = cur->txn->source_ipv4;
    2180       30285 :     out_txnp->flags                                     = cur->txn->flags;
    2181       30285 :     fd_memcpy( TXN(out_txnp), txn, fd_txn_footprint( txn->instr_cnt, txn->addr_table_lookup_cnt ) );
    2182             : 
    2183             :     /* Copy the ALT accounts from the source fd_txn_e_t */
    2184       30285 :     ulong alt_acct_cnt = (ulong)txn->addr_table_adtl_cnt;
    2185       10095 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    2186             :     /* In order to use non-temporal copies, we have to copy a full cache
    2187             :        line (which fits two pubkeys) at a time.  If alt_acct_cnt is odd,
    2188             :        this copies one extra address, but it touches the same number of
    2189             :        cache lines, since both the source and destination are aligned
    2190             :        to 64 bytes. The max is even, so this can never read out of bounds. */
    2191       10095 :     fd_acct_addr_t       * dst = out->alt_accts;
    2192       10095 :     fd_acct_addr_t const * src = cur->txn_e->alt_accts;
    2193       10095 :     for( ulong i=0UL; i<alt_acct_cnt; i+=2UL ) {
    2194           0 :       _mm512_stream_si512( (void*)(dst+i), _mm512_load_epi64( src+i ) );
    2195           0 :     }
    2196             : #else
    2197       20190 :     fd_memcpy( out->alt_accts, cur->txn_e->alt_accts, alt_acct_cnt * sizeof(fd_acct_addr_t) );
    2198       20190 : #endif
    2199       30285 :     out++;
    2200             : 
    2201       30285 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    2202       97269 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2203       66984 :       fd_acct_addr_t acct_addr = *ACCT_ITER_TO_PTR( iter );
    2204             : 
    2205       66984 :       fd_pack_wcost_ele_t * in_wcost_table = wcost_map_ele_query( writer_costs, &acct_addr, NULL, writers );
    2206       66984 :       if( !in_wcost_table ) {
    2207       19258 :         in_wcost_table = wcost_pool_ele_acquire( writers );
    2208       19258 :         in_wcost_table->key        = acct_addr;
    2209       19258 :         in_wcost_table->total_cost = 0UL;
    2210       19258 :         wcost_map_ele_insert     ( writer_costs, in_wcost_table, writers );
    2211       19258 :         wcost_dlist_ele_push_tail( written_list, in_wcost_table, writers );
    2212       19258 :       }
    2213       66984 :       in_wcost_table->total_cost += cur->compute_est;
    2214             : 
    2215       66984 :       fd_pack_addr_use_t * use = acct_uses_insert( acct_in_use, acct_addr );
    2216       66984 :       use->in_use_by = bank_tile_mask | FD_PACK_IN_USE_WRITABLE;
    2217             : 
    2218       66984 :       use_by_bank[use_by_bank_cnt++] = *use;
    2219             : 
    2220             :       /* If there aren't any more references to this account in the
    2221             :          heap, it can't cause any conflicts.  That means we actually
    2222             :          don't need to record that we are using it, which is good
    2223             :          because we want to release the bit. */
    2224       66984 :       release_result_t ret = release_bit_reference( pack, &acct_addr );
    2225       66984 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, ret.clear_rw_bit );
    2226       66984 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  ret.clear_w_bit  );
    2227       66984 :     }
    2228       30285 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    2229      135999 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2230             : 
    2231      105714 :       fd_acct_addr_t acct_addr = *ACCT_ITER_TO_PTR( iter );
    2232             : 
    2233      105714 :       if( fd_pack_unwritable_contains( &acct_addr ) ) continue; /* No need to track sysvars because they can't be writable */
    2234             : 
    2235       64965 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use,  acct_addr, NULL );
    2236       64965 :       if( !use ) { use = acct_uses_insert( acct_in_use, acct_addr ); use->in_use_by = 0UL; }
    2237             : 
    2238       64965 :       if( !(use->in_use_by & bank_tile_mask) ) use_by_bank[use_by_bank_cnt++] = *use;
    2239       64965 :       use->in_use_by |= bank_tile_mask;
    2240       64965 :       use->in_use_by &= ~FD_PACK_IN_USE_BIT_CLEARED;
    2241             : 
    2242             : 
    2243       64965 :       release_result_t ret = release_bit_reference( pack, &acct_addr );
    2244       64965 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, ret.clear_rw_bit );
    2245       64965 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  ret.clear_w_bit  );
    2246       64965 :     }
    2247             : 
    2248       30285 :     txns_scheduled  += 1UL;                      txn_limit       -= 1UL;
    2249       30285 :     cus_scheduled   += cur->compute_est;         cu_limit        -= cur->compute_est;
    2250       30285 :     bytes_scheduled += cur->txn->payload_sz;     byte_limit      -= cur->txn->payload_sz;
    2251       30285 :     alloc_scheduled += cur->txn->pack_alloc;     alloc_limit     -= cur->txn->pack_alloc;
    2252             : 
    2253       30285 :     *(use_by_bank_txn++) = use_by_bank_cnt;
    2254             : 
    2255       30285 :     if( FD_UNLIKELY( cur->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) noncemap_ele_remove_fast( pack->noncemap, cur, pack->pool );
    2256       30285 :     sig2txn_ele_remove_fast( pack->signature_map, cur, pool );
    2257             : 
    2258       30285 :     cur->root = FD_ORD_TXN_ROOT_FREE;
    2259       30285 :     expq_remove( pack->expiration_q, cur->expq_idx );
    2260       30285 :     treap_idx_remove( sched_from, _cur, pool );
    2261       30285 :     trp_pool_idx_release( pool, _cur );
    2262       30285 :     pack->pending_txn_cnt--;
    2263             : 
    2264       30285 :     if( FD_UNLIKELY( (cu_limit<smallest_in_treap->cus) | (txn_limit==0UL) | (byte_limit<smallest_in_treap->bytes) ) ) break;
    2265       30285 :   }
    2266             : 
    2267       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_TAKEN_IDX       ] += txns_scheduled;
    2268       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_CU_LIMIT_IDX    ] += cu_limit_c;
    2269       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_FAST_PATH_IDX   ] += fast_path;
    2270       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_BYTE_LIMIT_IDX  ] += byte_limit_c;
    2271       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_ALLOC_LIMIT_IDX ] += alloc_limit_c;
    2272       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_WRITE_COST_IDX  ] += write_limit_c;
    2273       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_SLOW_PATH_IDX   ] += slow_path;
    2274       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_DEFER_SKIP_IDX  ] += skip_c;
    2275             : 
    2276             :   /* If we scanned the whole treap and didn't break early, we now have a
    2277             :      better estimate of the smallest. */
    2278       14689 :   if( FD_UNLIKELY( treap_rev_iter_done( prev ) ) ) {
    2279       14366 :     smallest_in_treap->cus   = min_cus;
    2280       14366 :     smallest_in_treap->bytes = min_bytes;
    2281       14366 :   }
    2282             : 
    2283       14689 :   pack->use_by_bank_cnt[bank_tile] = use_by_bank_cnt;
    2284       14689 :   FD_PACK_BITSET_COPY( pack->bitset_rw_in_use, bitset_rw_in_use );
    2285       14689 :   FD_PACK_BITSET_COPY( pack->bitset_w_in_use,  bitset_w_in_use  );
    2286             : 
    2287       14689 :   sched_return_t to_return = { .cus_scheduled=cus_scheduled,     .txns_scheduled=txns_scheduled,
    2288       14689 :                                .bytes_scheduled=bytes_scheduled, .alloc_scheduled=alloc_scheduled };
    2289       14689 :   return to_return;
    2290       29649 : }
    2291             : 
    2292             : int
    2293             : fd_pack_microblock_complete( fd_pack_t * pack,
    2294       14877 :                              ulong       bank_tile ) {
    2295             :   /* If the account is in use writably, and it's in use by this banking
    2296             :      tile, then this banking tile must be the sole writer to it, so it's
    2297             :      always okay to clear the writable bit. */
    2298       14877 :   ulong clear_mask = ~((1UL<<bank_tile) | FD_PACK_IN_USE_WRITABLE);
    2299             : 
    2300             :   /* If nothing outstanding, bail quickly */
    2301       14877 :   if( FD_UNLIKELY( !(pack->outstanding_microblock_mask & (1UL<<bank_tile)) ) ) return 0;
    2302             : 
    2303        8716 :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
    2304        8716 :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
    2305        8716 :   FD_PACK_BITSET_COPY( bitset_rw_in_use, pack->bitset_rw_in_use );
    2306        8716 :   FD_PACK_BITSET_COPY( bitset_w_in_use,  pack->bitset_w_in_use  );
    2307             : 
    2308        8716 :   fd_pack_addr_use_t * base = pack->use_by_bank[bank_tile];
    2309             : 
    2310        8716 :   fd_pack_ord_txn_t       * best         = NULL;
    2311        8716 :   fd_pack_penalty_treap_t * best_penalty = NULL;
    2312        8716 :   ulong                     txn_cnt      = 0UL;
    2313             : 
    2314      116441 :   for( ulong i=0UL; i<pack->use_by_bank_cnt[bank_tile]; i++ ) {
    2315      107725 :     fd_pack_addr_use_t * use = acct_uses_query( pack->acct_in_use, base[i].key, NULL );
    2316      107725 :     FD_TEST( use );
    2317      107725 :     use->in_use_by &= clear_mask;
    2318             : 
    2319             :     /* In order to properly bound the size of bitset_map, we need to
    2320             :        release the "reference" to the account when we schedule it.
    2321             :        However, that poses a bit of a problem here, because by the time
    2322             :        we complete the microblock, that account could have been assigned
    2323             :        a different bit in the bitset.  The scheduling step tells us if
    2324             :        that is the case, and if so, we know that the bits in
    2325             :        bitset_w_in_use and bitset_rw_in_use were already cleared as
    2326             :        necessary.
    2327             : 
    2328             :        Note that it's possible for BIT_CLEARED to be set and then unset
    2329             :        by later uses, but then the account would be in use on other
    2330             :        banks, so we wouldn't try to observe the old value.  For example:
    2331             :        Suppose bit 0->account A, bit 1->account B, and we have two
    2332             :        transactions that read A, B.  We schedule a microblock to bank 0,
    2333             :        taking both transactions, which sets the counts for A, B to 0,
    2334             :        and releases the bits, clearing bits 0 and 1, and setting
    2335             :        BIT_CLEARED.  Then we get two more transactions that read
    2336             :        accounts C, D, A, B, and they get assigned 0->C, 1->D, 2->A,
    2337             :        3->B.  We try to schedule a microblock to bank 1 that takes one
    2338             :        of those transactions.  This unsets BIT_CLEARED for A, B.
    2339             :        Finally, the first microblock completes.  Even though the bitset
    2340             :        map has the new bits for A and B which are "wrong" compared to
    2341             :        when the transaction was initially scheduled, those bits have
    2342             :        already been cleared and reset properly in the bitset as needed.
    2343             :        A and B will still be in use by bank 1, so we won't clear any
    2344             :        bits.  If, on the other hand, the microblock scheduled to bank 1
    2345             :        completes first, bits 0 and 1 will be cleared for accounts C and
    2346             :        D, while bits 2 and 3 will remain set, which is correct.  Then
    2347             :        when bank 0 completes, bits 2 and 3 will be cleared. */
    2348      107725 :     if( FD_LIKELY( !use->in_use_by ) ) { /* if in_use_by==0, doesn't include BIT_CLEARED */
    2349       40146 :       fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, base[i].key, NULL );
    2350       40146 :       FD_TEST( q );
    2351       40146 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  q->bit );
    2352       40146 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, q->bit );
    2353             : 
    2354             :       /* Because this account is no longer in use, it might be possible
    2355             :          to schedule a transaction that writes to it.  Check its
    2356             :          penalty treap if it has one, and potentially move it to the
    2357             :          main treap. */
    2358       40146 :       fd_pack_penalty_treap_t * p_trp = penalty_map_query( pack->penalty_treaps, base[i].key, NULL );
    2359       40146 :       if( FD_UNLIKELY( p_trp ) ) {
    2360        5507 :         fd_pack_ord_txn_t * best_in_trp = treap_rev_iter_ele( treap_rev_iter_init( p_trp->penalty_treap, pack->pool ), pack->pool );
    2361        5507 :         if( FD_UNLIKELY( !best || COMPARE_WORSE( best, best_in_trp ) ) ) {
    2362        2806 :           best         = best_in_trp;
    2363        2806 :           best_penalty = p_trp;
    2364        2806 :         }
    2365        5507 :       }
    2366       40146 :     }
    2367             : 
    2368      107725 :     if( FD_LIKELY( !(use->in_use_by & ~FD_PACK_IN_USE_BIT_CLEARED) ) ) acct_uses_remove( pack->acct_in_use, use );
    2369             : 
    2370      107725 :     if( FD_UNLIKELY( i+1UL==pack->use_by_bank_txn[ bank_tile ][ txn_cnt ] ) ) {
    2371       26502 :       txn_cnt++;
    2372       26502 :       if( FD_LIKELY( best ) ) {
    2373             :         /* move best to the main treap */
    2374        2806 :         treap_ele_remove( best_penalty->penalty_treap, best, pack->pool );
    2375        2806 :         best->root = FD_ORD_TXN_ROOT_PENDING;
    2376        2806 :         treap_ele_insert( pack->pending,               best, pack->pool );
    2377             : 
    2378        2806 :         pack->pending_smallest->cus   = fd_ulong_min( pack->pending_smallest->cus,   best->compute_est             );
    2379        2806 :         pack->pending_smallest->bytes = fd_ulong_min( pack->pending_smallest->bytes, best->txn_e->txnp->payload_sz );
    2380             : 
    2381        2806 :         if( FD_UNLIKELY( !treap_ele_cnt( best_penalty->penalty_treap ) ) ) {
    2382          12 :           treap_delete( treap_leave( best_penalty->penalty_treap ) );
    2383             :           /* Removal invalidates any pointers we got from
    2384             :              penalty_map_query, but we immediately set these to NULL, so
    2385             :              we're not keeping any pointers around. */
    2386          12 :           penalty_map_remove( pack->penalty_treaps, best_penalty );
    2387          12 :         }
    2388        2806 :         best         = NULL;
    2389        2806 :         best_penalty = NULL;
    2390        2806 :       }
    2391       26502 :     }
    2392      107725 :   }
    2393             : 
    2394        8716 :   pack->use_by_bank_cnt[bank_tile] = 0UL;
    2395             : 
    2396        8716 :   FD_PACK_BITSET_COPY( pack->bitset_rw_in_use, bitset_rw_in_use );
    2397        8716 :   FD_PACK_BITSET_COPY( pack->bitset_w_in_use,  bitset_w_in_use  );
    2398             : 
    2399             :   /* outstanding_microblock_mask never has the writable bit set, so we
    2400             :      don't care about clearing it here either. */
    2401        8716 :   pack->outstanding_microblock_mask &= clear_mask;
    2402        8716 :   return 1;
    2403        8716 : }
    2404             : 
    2405       14718 : #define TRY_BUNDLE_NO_READY_BUNDLES      0
    2406           6 : #define TRY_BUNDLE_HAS_CONFLICTS       (-1)
    2407           6 : #define TRY_BUNDLE_DOES_NOT_FIT        (-2)
    2408           6 : #define TRY_BUNDLE_SUCCESS(n)          ( n) /* schedule bundle with n transactions */
    2409             : static inline int
    2410             : fd_pack_try_schedule_bundle( fd_pack_t  * pack,
    2411             :                              ulong        bank_tile,
    2412       14724 :                              fd_txn_e_t * out ) {
    2413       14724 :   int state = pack->initializer_bundle_state;
    2414       14724 :   if( FD_UNLIKELY( (state==FD_PACK_IB_STATE_PENDING) | (state==FD_PACK_IB_STATE_FAILED ) ) ) return TRY_BUNDLE_NO_READY_BUNDLES;
    2415             : 
    2416       14724 :   fd_pack_ord_txn_t * pool    = pack->pool;
    2417       14724 :   treap_t           * bundles = pack->pending_bundles;
    2418             : 
    2419       14724 :   int require_ib;
    2420       14724 :   if( FD_UNLIKELY( state==FD_PACK_IB_STATE_NOT_INITIALIZED ) ) { require_ib = 1; }
    2421       14724 :   if( FD_LIKELY  ( state==FD_PACK_IB_STATE_READY           ) ) { require_ib = 0; }
    2422             : 
    2423       14724 :   treap_rev_iter_t _cur  = treap_rev_iter_init( bundles, pool );
    2424       14724 :   ulong bundle_idx = ULONG_MAX;
    2425             : 
    2426             :   /* Skip any that we've marked as won't fit in this block */
    2427       14724 :   while( FD_UNLIKELY( !treap_rev_iter_done( _cur ) && treap_rev_iter_ele( _cur, pool )->skip==pack->compressed_slot_number ) ) {
    2428           0 :     _cur = treap_rev_iter_next( _cur, pool );
    2429           0 :     pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_DEFER_SKIP_IDX ]++;
    2430           0 :   }
    2431             : 
    2432       14724 :   if( FD_UNLIKELY( treap_rev_iter_done( _cur ) ) ) return TRY_BUNDLE_NO_READY_BUNDLES;
    2433             : 
    2434           6 :   treap_rev_iter_t   _txn0 = _cur;
    2435           6 :   fd_pack_ord_txn_t * txn0 = treap_rev_iter_ele( _txn0, pool );
    2436           6 :   int is_ib = !!(txn0->txn->flags & FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    2437           6 :   bundle_idx = RC_TO_REL_BUNDLE_IDX( txn0->rewards, txn0->compute_est );
    2438             : 
    2439           6 :   if( FD_UNLIKELY( require_ib & !is_ib ) ) return TRY_BUNDLE_NO_READY_BUNDLES;
    2440             : 
    2441             :   /* At this point, we have our candidate bundle, so we'll schedule it
    2442             :      if we can.  If we can't, we won't schedule anything. */
    2443             : 
    2444             : 
    2445           6 :   fd_pack_addr_use_t * bundle_temp_inserted[ FD_PACK_MAX_TXN_PER_BUNDLE * FD_TXN_ACCT_ADDR_MAX ];
    2446           6 :   ulong bundle_temp_inserted_cnt = 0UL;
    2447             : 
    2448           6 :   ulong bank_tile_mask = 1UL << bank_tile;
    2449             : 
    2450           6 :   int doesnt_fit   = 0;
    2451           6 :   int has_conflict = 0;
    2452           6 :   ulong txn_cnt = 0UL;
    2453             : 
    2454           6 :   ulong cu_limit         = pack->lim->max_cost_per_block           - pack->cumulative_block_cost;
    2455           6 :   ulong byte_limit       = pack->lim->max_data_bytes_per_block     - pack->data_bytes_consumed;
    2456           6 :   ulong microblock_limit = pack->lim->max_microblocks_per_block    - pack->microblock_cnt;
    2457           6 :   ulong alloc_limit      = pack->lim->max_allocated_data_per_block - pack->alloc_consumed;
    2458             : 
    2459           6 :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
    2460           6 :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
    2461           6 :   FD_PACK_BITSET_COPY( bitset_rw_in_use, pack->bitset_rw_in_use );
    2462           6 :   FD_PACK_BITSET_COPY( bitset_w_in_use,  pack->bitset_w_in_use  );
    2463             : 
    2464             :   /* last_use_in_txn_cnt[i+1] Keeps track of the number of accounts that
    2465             :      have their last reference in transaction i of the bundle.  This
    2466             :      esoteric value is important for computing use_by_bank_txn.
    2467             :      last_use_in_txn_cnt[0] is garbage. */
    2468           6 :   ulong last_use_in_txn_cnt[ 1UL+FD_PACK_MAX_TXN_PER_BUNDLE ] = { 0UL };
    2469             : 
    2470           6 :   fd_pack_addr_use_t   null_use[1]    = {{{{ 0 }}, { 0 }}};
    2471           6 :   fd_pack_wcost_ele_t  null_wcost[1]  = { 0 };
    2472             : 
    2473          24 :   while( !(doesnt_fit | has_conflict) & !treap_rev_iter_done( _cur ) ) {
    2474          18 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2475          18 :     ulong this_bundle_idx = RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est );
    2476          18 :     if( FD_UNLIKELY( this_bundle_idx!=bundle_idx ) ) break;
    2477             : 
    2478          18 :     if( FD_UNLIKELY( cur->compute_est>cu_limit ) ) {
    2479           0 :       doesnt_fit = 1;
    2480           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_CU_LIMIT_IDX ]++;
    2481           0 :       break;
    2482           0 :     }
    2483          18 :     cu_limit -= cur->compute_est;
    2484             : 
    2485             :     /* Each transaction in a bundle turns into a microblock */
    2486          18 :     if( FD_UNLIKELY( microblock_limit==0UL ) ) {
    2487           0 :       doesnt_fit = 1;
    2488           0 :       FD_MCNT_INC( PACK, MICROBLOCK_PER_BLOCK_LIMIT_REACHED, 1UL );
    2489           0 :       break;
    2490           0 :     }
    2491          18 :     microblock_limit--;
    2492             : 
    2493          18 :     if( FD_UNLIKELY( cur->txn->payload_sz+MICROBLOCK_DATA_OVERHEAD>byte_limit ) ) {
    2494           0 :       doesnt_fit = 1;
    2495           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_BYTE_LIMIT_IDX ]++;
    2496           0 :       break;
    2497           0 :     }
    2498          18 :     byte_limit -= cur->txn->payload_sz + MICROBLOCK_DATA_OVERHEAD;
    2499             : 
    2500          18 :     if( FD_UNLIKELY( cur->txn->pack_alloc>alloc_limit ) ) {
    2501           0 :       doesnt_fit = 1;
    2502           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_ALLOC_LIMIT_IDX ]++;
    2503           0 :       break;
    2504           0 :     }
    2505          18 :     alloc_limit -= cur->txn->pack_alloc;
    2506             : 
    2507          18 :     if( FD_UNLIKELY( !FD_PACK_BITSET_INTERSECT4_EMPTY( pack->bitset_rw_in_use, pack->bitset_w_in_use, cur->w_bitset, cur->rw_bitset ) ) ) {
    2508           0 :       has_conflict = 1;
    2509           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_FAST_PATH_IDX ]++;
    2510           0 :       break;
    2511           0 :     }
    2512             : 
    2513             :     /* Don't update the actual in-use bitset, because the transactions
    2514             :        in the bundle are allowed to conflict with each other. */
    2515          18 :     FD_PACK_BITSET_OR( bitset_rw_in_use, cur->rw_bitset );
    2516          18 :     FD_PACK_BITSET_OR( bitset_w_in_use,  cur->w_bitset  );
    2517             : 
    2518             : 
    2519          18 :     fd_txn_t const * txn = TXN(cur->txn);
    2520          18 :     fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, cur->txn->payload );
    2521          18 :     fd_acct_addr_t const * alt_adj = cur->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    2522             : 
    2523             :     /* Check conflicts between this transaction's writable accounts and
    2524             :        current readers */
    2525          18 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    2526         108 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2527             : 
    2528          90 :       fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    2529             : 
    2530          90 :       fd_pack_addr_use_t * in_bundle_temp = acct_uses_query          ( pack->bundle_temp_map, acct, null_use                  );
    2531          90 :       ulong current_cost                  = wcost_map_ele_query_const( pack->writer_costs,   &acct, null_wcost, pack->writers )->total_cost;
    2532          90 :       ulong carried_cost                  = (ulong)in_bundle_temp->carried_cost;
    2533          90 :       if( FD_UNLIKELY( current_cost + carried_cost + cur->compute_est > pack->lim->max_write_cost_per_acct ) ) {
    2534           0 :         doesnt_fit = 1;
    2535           0 :         pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_WRITE_COST_IDX ]++;
    2536           0 :         break;
    2537           0 :       }
    2538             : 
    2539          90 :       if( FD_LIKELY( in_bundle_temp==null_use ) ) { /* Not in temp bundle table yet */
    2540          30 :         in_bundle_temp    = acct_uses_insert( pack->bundle_temp_map, acct );
    2541          30 :         in_bundle_temp->_ = 0UL;
    2542          30 :         bundle_temp_inserted[ bundle_temp_inserted_cnt++ ] = in_bundle_temp;
    2543          30 :       }
    2544          90 :       in_bundle_temp->carried_cost += (uint)cur->compute_est; /* < 2^21, but >0 */
    2545          90 :       in_bundle_temp->ref_cnt++;
    2546          90 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]--;
    2547          90 :       in_bundle_temp->last_use_in = (ushort)(txn_cnt+1UL);
    2548          90 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]++;
    2549             : 
    2550          90 :       if( FD_UNLIKELY( acct_uses_query( pack->acct_in_use, acct, null_use )->in_use_by ) ) {
    2551           0 :         has_conflict = 1;
    2552           0 :         pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_SLOW_PATH_IDX ]++;
    2553           0 :         break;
    2554           0 :       }
    2555          90 :     }
    2556          18 :     if( has_conflict | doesnt_fit ) break;
    2557             : 
    2558             :     /* Check conflicts between this transaction's readonly accounts and
    2559             :        current writers */
    2560          18 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    2561         126 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2562             : 
    2563         108 :       fd_acct_addr_t const * acct = ACCT_ITER_TO_PTR( iter );
    2564         108 :       if( fd_pack_unwritable_contains( acct ) ) continue; /* No need to track sysvars because they can't be writable */
    2565             : 
    2566          54 :       fd_pack_addr_use_t * in_bundle_temp = acct_uses_query( pack->bundle_temp_map, *acct, null_use );
    2567          54 :       if( FD_LIKELY( in_bundle_temp==null_use ) ) { /* Not in temp bundle table yet */
    2568          18 :         in_bundle_temp = acct_uses_insert( pack->bundle_temp_map, *acct );
    2569          18 :         in_bundle_temp->_ = 0UL;
    2570          18 :         bundle_temp_inserted[ bundle_temp_inserted_cnt++ ] = in_bundle_temp;
    2571          18 :       }
    2572          54 :       in_bundle_temp->ref_cnt++;
    2573          54 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]--;
    2574          54 :       in_bundle_temp->last_use_in = (ushort)(txn_cnt+1UL);
    2575          54 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]++;
    2576             : 
    2577          54 :       if( FD_UNLIKELY( acct_uses_query( pack->acct_in_use,  *acct, null_use )->in_use_by & FD_PACK_IN_USE_WRITABLE ) ) {
    2578           0 :         has_conflict = 1;
    2579           0 :         pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_SLOW_PATH_IDX ]++;
    2580           0 :         break;
    2581           0 :       }
    2582          54 :     }
    2583             : 
    2584          18 :     if( has_conflict | doesnt_fit ) break;
    2585             : 
    2586          18 :     txn_cnt++;
    2587          18 :     _cur = treap_rev_iter_next( _cur, pool );
    2588          18 :   }
    2589           6 :   int retval = fd_int_if( doesnt_fit, TRY_BUNDLE_DOES_NOT_FIT,
    2590           6 :                                       fd_int_if( has_conflict, TRY_BUNDLE_HAS_CONFLICTS, TRY_BUNDLE_SUCCESS( (int)txn_cnt ) ) );
    2591             : 
    2592           6 :   if( FD_UNLIKELY( retval<=0 ) ) {
    2593           0 :     for( ulong i=0UL; i<bundle_temp_inserted_cnt; i++ ) {
    2594           0 :       acct_uses_remove( pack->bundle_temp_map, bundle_temp_inserted[ bundle_temp_inserted_cnt-i-1UL ] );
    2595           0 :     }
    2596           0 :     FD_TEST( acct_uses_key_cnt( pack->bundle_temp_map )==0UL );
    2597             : 
    2598           0 :     if( FD_UNLIKELY( retval==TRY_BUNDLE_DOES_NOT_FIT ) ) {
    2599             :       /* Decrement the skip count for the bundle we just tried. */
    2600             : 
    2601           0 :       for( _cur=_txn0; !treap_rev_iter_done( _cur ); _cur=treap_rev_iter_next( _cur, pool ) ) {
    2602           0 :         fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2603           0 :         ulong this_bundle_idx = RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est );
    2604           0 :         if( FD_UNLIKELY( this_bundle_idx!=bundle_idx ) ) break;
    2605             : 
    2606             :         /* See fd_pack_schedule_impl for this line */
    2607           0 :         cur->skip = (ushort)(1+fd_ushort_min( (ushort)(pack->compressed_slot_number-1),
    2608           0 :               (ushort)(fd_ushort_min( cur->skip, FD_PACK_SKIP_CNT )-2) ) );
    2609           0 :       }
    2610           0 :     }
    2611           0 :     return retval;
    2612           0 :   }
    2613             : 
    2614             :   /* This bundle passed validation, so now we'll take it! */
    2615           6 :   pack->outstanding_microblock_mask |= bank_tile_mask;
    2616             : 
    2617           6 :   treap_rev_iter_t   _end  = _cur;
    2618           6 :   treap_rev_iter_t   _next;
    2619             : 
    2620             :   /* We'll carefully incrementally construct use_by_bank and
    2621             :      use_by_bank_txn based on the contents of bundle_temp and
    2622             :      last_use_in_txn_cnt. */
    2623           6 :   fd_pack_addr_use_t * use_by_bank     = pack->use_by_bank    [bank_tile];
    2624           6 :   ulong              * use_by_bank_txn = pack->use_by_bank_txn[bank_tile];
    2625           6 :   ulong cum_sum = 0UL;
    2626          24 :   for( ulong k=0UL; k<txn_cnt; k++ ) { use_by_bank_txn[k] = cum_sum; cum_sum += last_use_in_txn_cnt[ k+1UL ]; }
    2627           6 :   pack->use_by_bank_cnt[bank_tile] = cum_sum;
    2628             : 
    2629             : 
    2630          24 :   for( _cur=_txn0; _cur!=_end; _cur=_next ) {
    2631          18 :     _next = treap_rev_iter_next( _cur, pool );
    2632             : 
    2633          18 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2634          18 :     fd_txn_t const    * txn = TXN(cur->txn);
    2635          18 :     fd_txn_p_t        * out_txnp = out->txnp;
    2636          18 :     fd_memcpy( out_txnp->payload, cur->txn->payload, cur->txn->payload_sz                                           );
    2637          18 :     fd_memcpy( TXN(out_txnp),     txn,               fd_txn_footprint( txn->instr_cnt, txn->addr_table_lookup_cnt ) );
    2638          18 :     out_txnp->payload_sz                      = cur->txn->payload_sz;
    2639          18 :     out_txnp->pack_cu.requested_exec_plus_acct_data_cus = cur->txn->pack_cu.requested_exec_plus_acct_data_cus;
    2640          18 :     out_txnp->pack_cu.non_execution_cus       = cur->txn->pack_cu.non_execution_cus;
    2641          18 :     out_txnp->pack_alloc                      = cur->txn->pack_alloc;
    2642          18 :     out_txnp->scheduler_arrival_time_nanos    = cur->txn->scheduler_arrival_time_nanos;
    2643          18 :     out_txnp->first_seen_nanos                = cur->txn->first_seen_nanos;
    2644          18 :     out_txnp->source_tpu                      = cur->txn->source_tpu;
    2645          18 :     out_txnp->source_ipv4                     = cur->txn->source_ipv4;
    2646          18 :     out_txnp->flags                           = cur->txn->flags;
    2647             :     /* Copy the ALT accounts from the source fd_txn_e_t */
    2648          18 :     ulong alt_acct_cnt = (ulong)txn->addr_table_adtl_cnt;
    2649          18 :     fd_memcpy( out->alt_accts, cur->txn_e->alt_accts, alt_acct_cnt * sizeof(fd_acct_addr_t) );
    2650          18 :     out++;
    2651             : 
    2652          18 :     pack->cumulative_block_cost += cur->compute_est;
    2653          18 :     pack->data_bytes_consumed   += cur->txn->payload_sz + MICROBLOCK_DATA_OVERHEAD;
    2654          18 :     pack->alloc_consumed        += cur->txn->pack_alloc;
    2655          18 :     pack->microblock_cnt        += 1UL;
    2656             : 
    2657          18 :     if( FD_UNLIKELY( cur->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) noncemap_ele_remove_fast( pack->noncemap, cur, pack->pool );
    2658          18 :     sig2txn_ele_remove_fast( pack->signature_map, cur, pack->pool );
    2659             : 
    2660          18 :     cur->root = FD_ORD_TXN_ROOT_FREE;
    2661          18 :     expq_remove( pack->expiration_q, cur->expq_idx );
    2662          18 :     treap_idx_remove( pack->pending_bundles, _cur, pack->pool );
    2663          18 :     trp_pool_idx_release( pack->pool, _cur );
    2664          18 :     pack->pending_txn_cnt--;
    2665          18 :   }
    2666             : 
    2667             : 
    2668          54 :   for( ulong i=0UL; i<bundle_temp_inserted_cnt; i++ ) {
    2669             :     /* In order to clear bundle_temp_map with the typical trick, we need
    2670             :        to iterate through bundle_temp_inserted backwards. */
    2671          48 :     fd_pack_addr_use_t * addr_use = bundle_temp_inserted[ bundle_temp_inserted_cnt-i-1UL ];
    2672             : 
    2673          48 :     int any_writers = addr_use->carried_cost>0U; /* Did any transaction in this bundle write lock this account address? */
    2674             : 
    2675          48 :     if( FD_LIKELY( any_writers ) ) { /* UNLIKELY? */
    2676          30 :       fd_pack_wcost_ele_t * in_wcost_table = wcost_map_ele_query( pack->writer_costs, &addr_use->key, NULL, pack->writers );
    2677          30 :       if( !in_wcost_table ) {
    2678          15 :         in_wcost_table = wcost_pool_ele_acquire( pack->writers );
    2679          15 :         in_wcost_table->key        = addr_use->key;
    2680          15 :         in_wcost_table->total_cost = 0UL;
    2681          15 :         wcost_map_ele_insert     ( pack->writer_costs, in_wcost_table, pack->writers );
    2682          15 :         wcost_dlist_ele_push_tail( pack->written_list, in_wcost_table, pack->writers );
    2683          15 :       }
    2684          30 :       in_wcost_table->total_cost += (ulong)addr_use->carried_cost;
    2685          30 :     }
    2686             : 
    2687             :     /* in_use_by must be set before releasing the bit reference */
    2688          48 :     fd_pack_addr_use_t * use = acct_uses_query( pack->acct_in_use, addr_use->key, NULL );
    2689          48 :     if( !use ) { use = acct_uses_insert( pack->acct_in_use, addr_use->key ); use->in_use_by = 0UL; }
    2690          48 :     use->in_use_by |= bank_tile_mask | fd_ulong_if( any_writers, FD_PACK_IN_USE_WRITABLE, 0UL );
    2691          48 :     use->in_use_by &= ~FD_PACK_IN_USE_BIT_CLEARED;
    2692             : 
    2693          48 :     use_by_bank[ use_by_bank_txn[ addr_use->last_use_in-1UL ]++ ] = *use;
    2694             : 
    2695         192 :     for( ulong k=0UL; k<(ulong)addr_use->ref_cnt; k++ ) {
    2696         144 :       release_result_t ret = release_bit_reference( pack, &(addr_use->key) );
    2697         144 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, ret.clear_rw_bit );
    2698         144 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  ret.clear_w_bit  );
    2699         144 :     }
    2700             : 
    2701          48 :     acct_uses_remove( pack->bundle_temp_map, addr_use );
    2702          48 :   }
    2703             : 
    2704           6 :   FD_PACK_BITSET_COPY( pack->bitset_rw_in_use, bitset_rw_in_use );
    2705           6 :   FD_PACK_BITSET_COPY( pack->bitset_w_in_use,  bitset_w_in_use  );
    2706             : 
    2707           6 :   if( FD_UNLIKELY( is_ib ) ) {
    2708           0 :     pack->initializer_bundle_state = FD_PACK_IB_STATE_PENDING;
    2709           0 :   }
    2710           6 :   return retval;
    2711           6 : }
    2712             : 
    2713             : 
    2714             : ulong
    2715             : fd_pack_schedule_next_microblock( fd_pack_t *  pack,
    2716             :                                   ulong        total_cus,
    2717             :                                   float        vote_fraction,
    2718             :                                   ulong        bank_tile,
    2719             :                                   int          schedule_flags,
    2720       14877 :                                   fd_txn_e_t * out ) {
    2721             : 
    2722             :   /* TODO: Decide if these are exactly how we want to handle limits */
    2723       14877 :   total_cus = fd_ulong_min( total_cus, pack->lim->max_cost_per_block - pack->cumulative_block_cost );
    2724       14877 :   ulong vote_cus = fd_ulong_min( (ulong)((float)total_cus * vote_fraction),
    2725       14877 :                                  pack->lim->max_vote_cost_per_block - pack->cumulative_vote_cost );
    2726       14877 :   ulong vote_reserved_txns = fd_ulong_min( vote_cus/FD_PACK_MAX_SIMPLE_VOTE_COST,
    2727       14877 :                                            (ulong)((float)pack->lim->max_txn_per_microblock * vote_fraction) );
    2728             : 
    2729             : 
    2730       14877 :   if( FD_UNLIKELY( (pack->microblock_cnt>=pack->lim->max_microblocks_per_block) ) ) {
    2731           0 :     FD_MCNT_INC( PACK, MICROBLOCK_PER_BLOCK_LIMIT_REACHED, 1UL );
    2732           0 :     return 0UL;
    2733           0 :   }
    2734       14877 :   if( FD_UNLIKELY( pack->data_bytes_consumed+MICROBLOCK_DATA_OVERHEAD+FD_TXN_MIN_SERIALIZED_SZ>pack->lim->max_data_bytes_per_block) ) {
    2735           0 :     FD_MCNT_INC( PACK, DATA_PER_BLOCK_LIMIT_REACHED, 1UL );
    2736           0 :     return 0UL;
    2737           0 :   }
    2738             : 
    2739       14877 :   ulong * use_by_bank_txn = pack->use_by_bank_txn[ bank_tile ];
    2740             : 
    2741       14877 :   ulong cu_limit    = total_cus - vote_cus;
    2742       14877 :   ulong txn_limit   = pack->lim->max_txn_per_microblock - vote_reserved_txns;
    2743       14877 :   ulong scheduled   = 0UL;
    2744       14877 :   ulong byte_limit  = pack->lim->max_data_bytes_per_block - pack->data_bytes_consumed - MICROBLOCK_DATA_OVERHEAD;
    2745       14877 :   ulong alloc_limit = pack->lim->max_allocated_data_per_block - pack->alloc_consumed;
    2746             : 
    2747       14877 :   sched_return_t status = {0}, status1 = {0};
    2748             : 
    2749       14877 :   if( FD_LIKELY( schedule_flags & FD_PACK_SCHEDULE_VOTE ) ) {
    2750             :     /* Schedule vote transactions */
    2751       14778 :     status1= fd_pack_schedule_impl( pack, pack->pending_votes, vote_cus, vote_reserved_txns, byte_limit, alloc_limit, bank_tile,
    2752       14778 :         pack->pending_votes_smallest, use_by_bank_txn, out+scheduled );
    2753             : 
    2754       14778 :     scheduled                   += status1.txns_scheduled;
    2755       14778 :     pack->cumulative_vote_cost  += status1.cus_scheduled;
    2756       14778 :     pack->cumulative_block_cost += status1.cus_scheduled;
    2757       14778 :     pack->data_bytes_consumed   += status1.bytes_scheduled;
    2758       14778 :     byte_limit                  -= status1.bytes_scheduled;
    2759       14778 :     pack->alloc_consumed        += status1.alloc_scheduled;
    2760       14778 :     alloc_limit                 -= status1.alloc_scheduled;
    2761       14778 :     use_by_bank_txn             += status1.txns_scheduled;
    2762             :     /* Add any remaining CUs/txns to the non-vote limits */
    2763       14778 :     txn_limit += vote_reserved_txns - status1.txns_scheduled;
    2764       14778 :     cu_limit  += vote_cus - status1.cus_scheduled;
    2765       14778 :   }
    2766             : 
    2767             :   /* Bundle can't mix with votes, so only try to schedule a bundle if we
    2768             :      didn't get any votes. */
    2769       14877 :   if( FD_UNLIKELY( !!(schedule_flags & FD_PACK_SCHEDULE_BUNDLE) & (status1.txns_scheduled==0UL) ) ) {
    2770       14724 :     int bundle_result = fd_pack_try_schedule_bundle( pack, bank_tile, out );
    2771       14724 :     if( FD_UNLIKELY( bundle_result>0                         ) ) return (ulong)bundle_result;
    2772       14718 :     if( FD_UNLIKELY( bundle_result==TRY_BUNDLE_HAS_CONFLICTS ) ) return 0UL;
    2773             :     /* in the NO_READY_BUNDLES or DOES_NOT_FIT case, we schedule like
    2774             :        normal. */
    2775             :     /* We have the early returns here because try_schedule_bundle does
    2776             :        the bookkeeping internally, since the calculations are a bit
    2777             :        different in that case. */
    2778       14718 :   }
    2779             : 
    2780             : 
    2781             :   /* Fill any remaining space with non-vote transactions */
    2782       14871 :   if( FD_LIKELY( schedule_flags & FD_PACK_SCHEDULE_TXN ) ) {
    2783       14871 :     status = fd_pack_schedule_impl( pack, pack->pending,       cu_limit, txn_limit,          byte_limit, alloc_limit, bank_tile,
    2784       14871 :         pack->pending_smallest,       use_by_bank_txn, out+scheduled );
    2785             : 
    2786       14871 :     scheduled                   += status.txns_scheduled;
    2787       14871 :     pack->cumulative_block_cost += status.cus_scheduled;
    2788       14871 :     pack->data_bytes_consumed   += status.bytes_scheduled;
    2789       14871 :     pack->alloc_consumed        += status.alloc_scheduled;
    2790       14871 :   }
    2791             : 
    2792       14871 :   ulong nonempty = (ulong)(scheduled>0UL);
    2793       14871 :   pack->microblock_cnt              += nonempty;
    2794       14871 :   pack->outstanding_microblock_mask |= nonempty << bank_tile;
    2795       14871 :   pack->data_bytes_consumed         += nonempty * MICROBLOCK_DATA_OVERHEAD;
    2796             : 
    2797             :   /* Update metrics counters */
    2798       14871 :   fd_pack_metrics_write( pack );
    2799       14871 :   FD_MGAUGE_SET( PACK, BLOCK_CU_CONSUMED, pack->cumulative_block_cost );
    2800             : 
    2801       14871 :   fd_histf_sample( pack->txn_per_microblock,  scheduled              );
    2802       14871 :   fd_histf_sample( pack->vote_per_microblock, status1.txns_scheduled );
    2803             : 
    2804        4957 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    2805        4957 :   _mm_sfence();
    2806        4957 : #endif
    2807             : 
    2808       14871 :   return scheduled;
    2809       14877 : }
    2810             : 
    2811      274518 : ulong fd_pack_bank_tile_cnt     ( fd_pack_t const * pack ) { return pack->bank_tile_cnt;         }
    2812           0 : ulong fd_pack_current_block_cost( fd_pack_t const * pack ) { return pack->cumulative_block_cost; }
    2813             : 
    2814             : 
    2815             : void
    2816           0 : fd_pack_set_block_limits( fd_pack_t * pack, fd_pack_limits_t const * limits ) {
    2817           0 :   FD_TEST( limits->max_cost_per_block      >= FD_PACK_MAX_COST_PER_BLOCK_LOWER_BOUND      );
    2818           0 :   FD_TEST( limits->max_vote_cost_per_block >= FD_PACK_MAX_VOTE_COST_PER_BLOCK_LOWER_BOUND );
    2819           0 :   FD_TEST( limits->max_write_cost_per_acct >= FD_PACK_MAX_WRITE_COST_PER_ACCT_LOWER_BOUND );
    2820             : 
    2821           0 :   pack->lim->max_microblocks_per_block    = limits->max_microblocks_per_block;
    2822           0 :   pack->lim->max_data_bytes_per_block     = limits->max_data_bytes_per_block;
    2823           0 :   pack->lim->max_cost_per_block           = limits->max_cost_per_block;
    2824           0 :   pack->lim->max_vote_cost_per_block      = limits->max_vote_cost_per_block;
    2825           0 :   pack->lim->max_write_cost_per_acct      = limits->max_write_cost_per_acct;
    2826           0 :   pack->lim->max_allocated_data_per_block = limits->max_allocated_data_per_block;
    2827           0 : }
    2828             : 
    2829             : void
    2830           0 : fd_pack_get_block_limits( fd_pack_t * pack, fd_pack_limits_usage_t * opt_limits_usage, fd_pack_limits_t * opt_limits ) {
    2831           0 :   if( FD_LIKELY( opt_limits_usage ) ) {
    2832           0 :     opt_limits_usage->block_cost          = pack->cumulative_block_cost;
    2833           0 :     opt_limits_usage->vote_cost           = pack->cumulative_vote_cost;
    2834           0 :     opt_limits_usage->block_data_bytes    = pack->data_bytes_consumed;
    2835           0 :     opt_limits_usage->microblocks         = pack->microblock_cnt;
    2836           0 :     opt_limits_usage->alloc               = pack->alloc_consumed;
    2837           0 :   }
    2838           0 :   if( FD_LIKELY( opt_limits ) ) fd_memcpy( opt_limits, pack->lim, sizeof(fd_pack_limits_t) );
    2839           0 : }
    2840             : 
    2841             : void
    2842           0 : fd_pack_get_top_writers( fd_pack_t const * pack, fd_pack_addr_use_t top_writers[static FD_PACK_TOP_WRITERS_CNT] ) {
    2843           0 :   fd_memcpy( top_writers, pack->top_writers, sizeof(pack->top_writers) );
    2844           0 : }
    2845             : 
    2846             : void
    2847           0 : fd_pack_get_pending_smallest( fd_pack_t * pack, fd_pack_smallest_t * opt_pending_smallest, fd_pack_smallest_t * opt_votes_smallest ) {
    2848           0 :   if( FD_LIKELY( opt_pending_smallest ) ) fd_memcpy( opt_pending_smallest, pack->pending_smallest,       sizeof(fd_pack_smallest_t) );
    2849           0 :   if( FD_LIKELY( opt_votes_smallest ) )   fd_memcpy( opt_votes_smallest,   pack->pending_votes_smallest, sizeof(fd_pack_smallest_t) );
    2850           0 : }
    2851             : 
    2852             : void
    2853             : fd_pack_rebate_cus( fd_pack_t              * pack,
    2854           6 :                     fd_pack_rebate_t const * rebate ) {
    2855           6 :   if( FD_UNLIKELY( (rebate->ib_result!=0) & (pack->initializer_bundle_state==FD_PACK_IB_STATE_PENDING ) ) ) {
    2856           0 :     pack->initializer_bundle_state = fd_int_if( rebate->ib_result==1, FD_PACK_IB_STATE_READY, FD_PACK_IB_STATE_FAILED );
    2857           0 :   }
    2858             : 
    2859           6 :   pack->cumulative_block_cost  -= rebate->total_cost_rebate;
    2860           6 :   pack->cumulative_vote_cost   -= rebate->vote_cost_rebate;
    2861           6 :   pack->data_bytes_consumed    -= rebate->data_bytes_rebate;
    2862           6 :   pack->alloc_consumed         -= rebate->alloc_rebate;
    2863           6 :   pack->cumulative_rebated_cus += rebate->total_cost_rebate;
    2864             :   /* For now, we want to ignore the microblock count rebate.  There are
    2865             :      3 places the microblock count is kept (here, in the pack tile, and
    2866             :      in the PoH tile), and they all need to count microblocks that end
    2867             :      up being empty in the same way.  It would be better from a
    2868             :      DoS-resistance perspective for them all not to count empty
    2869             :      microblocks towards the total, but there's a race condition:
    2870             :      suppose pack schedules a microblock containing one transaction that
    2871             :      doesn't land on chain, the slot ends, and then pack informs PoH of
    2872             :      the number of microblocks before the final rebate comes through.
    2873             :      This isn't unsolvable, but it's pretty gross, so it's probably
    2874             :      better to just not apply the rebate for now. */
    2875           6 :   (void)rebate->microblock_cnt_rebate;
    2876             : 
    2877           6 :   wcost_map_t * writer_costs = pack->writer_costs;
    2878          18 :   for( ulong i=0UL; i<rebate->writer_cnt; i++ ) {
    2879          12 :     fd_pack_wcost_ele_t * in_wcost_table = wcost_map_ele_query( writer_costs, &rebate->writer_rebates[i].key, NULL, pack->writers );
    2880          12 :     if( FD_UNLIKELY( !in_wcost_table ) ) FD_LOG_ERR(( "Rebate to unknown written account" ));
    2881          12 :     in_wcost_table->total_cost -= rebate->writer_rebates[i].rebate_cus;
    2882             :     /* If the rebate drops it to zero, return it to the pool */
    2883          12 :     if( FD_UNLIKELY( !in_wcost_table->total_cost ) ) {
    2884           3 :       wcost_map_ele_remove_fast( writer_costs,       in_wcost_table, pack->writers );
    2885           3 :       wcost_dlist_ele_remove   ( pack->written_list, in_wcost_table, pack->writers );
    2886           3 :       wcost_pool_ele_release   ( pack->writers,      in_wcost_table );
    2887           3 :     }
    2888          12 :   }
    2889           6 : }
    2890             : 
    2891             : 
    2892             : ulong
    2893             : fd_pack_expire_before( fd_pack_t * pack,
    2894          15 :                        ulong       expire_before ) {
    2895          15 :   expire_before = fd_ulong_max( expire_before, pack->expire_before );
    2896          15 :   ulong deleted_cnt = 0UL;
    2897          15 :   fd_pack_expq_t * prq = pack->expiration_q;
    2898         327 :   while( (expq_cnt( prq )>0UL) & (prq->expires_at<expire_before) ) {
    2899         312 :     fd_pack_ord_txn_t * expired = prq->txn;
    2900             : 
    2901             :     /* fd_pack_delete_transaction also removes it from the heap */
    2902             :     /* All the transactions in the same bundle have the same expiration
    2903             :        time, so this loop will end up deleting them all, even with
    2904             :        delete_full_bundle set to 0. */
    2905         312 :     ulong _delete_cnt = delete_transaction( pack, expired, 0, 1 );
    2906         312 :     deleted_cnt += _delete_cnt;
    2907         312 :     FD_TEST( _delete_cnt );
    2908         312 :   }
    2909             : 
    2910          15 :   pack->expire_before = expire_before;
    2911          15 :   return deleted_cnt;
    2912          15 : }
    2913             : 
    2914             : void
    2915          12 : fd_pack_end_block( fd_pack_t * pack ) {
    2916             :   /* rounded division */
    2917          12 :   ulong pct_cus_per_block = (pack->cumulative_block_cost*100UL + (pack->lim->max_cost_per_block>>1))/pack->lim->max_cost_per_block;
    2918          12 :   fd_histf_sample( pack->pct_cus_per_block,       pct_cus_per_block                                          );
    2919          12 :   fd_histf_sample( pack->net_cus_per_block,       pack->cumulative_block_cost                                );
    2920          12 :   fd_histf_sample( pack->rebated_cus_per_block,   pack->cumulative_rebated_cus                               );
    2921          12 :   fd_histf_sample( pack->scheduled_cus_per_block, pack->cumulative_rebated_cus + pack->cumulative_block_cost );
    2922             : 
    2923          12 :   pack->microblock_cnt              = 0UL;
    2924          12 :   pack->data_bytes_consumed         = 0UL;
    2925          12 :   pack->cumulative_block_cost       = 0UL;
    2926          12 :   pack->cumulative_vote_cost        = 0UL;
    2927          12 :   pack->cumulative_rebated_cus      = 0UL;
    2928          12 :   pack->outstanding_microblock_mask = 0UL;
    2929          12 :   pack->alloc_consumed              = 0UL;
    2930             : 
    2931          12 :   pack->initializer_bundle_state = FD_PACK_IB_STATE_NOT_INITIALIZED;
    2932             : 
    2933          12 :   acct_uses_clear( pack->acct_in_use  );
    2934          12 :   memset( pack->top_writers, 0, sizeof(pack->top_writers) );
    2935             : 
    2936          12 :   fd_pack_addr_use_t * last_top_writer = pack->top_writers + FD_PACK_TOP_WRITERS_CNT-1UL;
    2937             : 
    2938        8148 :   while( !wcost_dlist_is_empty( pack->written_list, pack->writers ) ) {
    2939        8136 :     fd_pack_wcost_ele_t * writer = wcost_dlist_ele_pop_head( pack->written_list, pack->writers );
    2940        8136 :     if( FD_UNLIKELY( writer->total_cost>last_top_writer->total_cost ) ) {
    2941          81 :       last_top_writer->key        = writer->key;
    2942          81 :       last_top_writer->total_cost = writer->total_cost;
    2943          81 :       fd_pack_writer_cost_sort_insert( pack->top_writers, FD_PACK_TOP_WRITERS_CNT );
    2944          81 :     }
    2945             :     /* Clearing the cost field here is unnecessary (since it gets
    2946             :        cleared on insert), but makes debugging a bit easier. */
    2947        8136 :     writer->total_cost = 0UL;
    2948        8136 :     wcost_map_ele_remove_fast( pack->writer_costs, writer, pack->writers );
    2949        8136 :     wcost_pool_ele_release( pack->writers, writer );
    2950        8136 :   }
    2951             : 
    2952             :   /* compressed_slot_number is > FD_PACK_SKIP_CNT, which means +1 is the
    2953             :      max unless it overflows. */
    2954          12 :   pack->compressed_slot_number = fd_ushort_max( (ushort)(pack->compressed_slot_number+1), (ushort)(FD_PACK_SKIP_CNT+1) );
    2955             : 
    2956          12 :   FD_PACK_BITSET_CLEAR( pack->bitset_rw_in_use );
    2957          12 :   FD_PACK_BITSET_CLEAR( pack->bitset_w_in_use  );
    2958             : 
    2959          24 :   for( ulong i=0UL; i<pack->bank_tile_cnt; i++ ) pack->use_by_bank_cnt[i] = 0UL;
    2960             : 
    2961             :   /* If our stake is low and we don't become leader often, end_block
    2962             :      might get called on the order of O(1/hr), which feels too
    2963             :      infrequent to do anything related to metrics.  However, we only
    2964             :      update the histograms when we are leader, so this is actually a
    2965             :      good place to copy them. */
    2966          12 :   FD_MHIST_COPY( PACK, TXN_PER_MICROBLOCK,  pack->txn_per_microblock  );
    2967          12 :   FD_MHIST_COPY( PACK, VOTE_PER_MICROBLOCK, pack->vote_per_microblock );
    2968             : 
    2969          12 :   FD_MGAUGE_SET( PACK, BLOCK_CU_CONSUMED, 0UL                           );
    2970          12 :   FD_MHIST_COPY( PACK, CU_SCHEDULED_PER_BLOCK, pack->scheduled_cus_per_block );
    2971          12 :   FD_MHIST_COPY( PACK, CU_REBATED_PER_BLOCK,   pack->rebated_cus_per_block   );
    2972          12 :   FD_MHIST_COPY( PACK, CU_NET_PER_BLOCK,       pack->net_cus_per_block       );
    2973          12 :   FD_MHIST_COPY( PACK, CU_PCT,                 pack->pct_cus_per_block       );
    2974          12 : }
    2975             : 
    2976             : static void
    2977             : release_tree( treap_t           * treap,
    2978             :               sig2txn_t         * signature_map,
    2979             :               noncemap_t        * noncemap,
    2980           9 :               fd_pack_ord_txn_t * pool ) {
    2981           9 :   treap_fwd_iter_t next;
    2982          18 :   for( treap_fwd_iter_t it=treap_fwd_iter_init( treap, pool ); !treap_fwd_iter_done( it ); it=next ) {
    2983           9 :     next = treap_fwd_iter_next( it, pool );
    2984           9 :     ulong idx = treap_fwd_iter_idx( it );
    2985           9 :     pool[ idx ].root = FD_ORD_TXN_ROOT_FREE;
    2986           9 :     treap_idx_remove       ( treap,         idx, pool );
    2987           9 :     sig2txn_idx_remove_fast( signature_map, idx, pool );
    2988           9 :     trp_pool_idx_release   ( pool,          idx       );
    2989           9 :     if( pool[ idx ].txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) {
    2990           9 :       noncemap_idx_remove_fast( noncemap, idx, pool );
    2991           9 :     }
    2992           9 :   }
    2993           9 : }
    2994             : 
    2995             : void
    2996           3 : fd_pack_clear_all( fd_pack_t * pack ) {
    2997           3 :   pack->pending_txn_cnt        = 0UL;
    2998           3 :   pack->microblock_cnt         = 0UL;
    2999           3 :   pack->cumulative_block_cost  = 0UL;
    3000           3 :   pack->cumulative_vote_cost   = 0UL;
    3001           3 :   pack->cumulative_rebated_cus = 0UL;
    3002           3 :   pack->data_bytes_consumed    = 0UL;
    3003           3 :   pack->alloc_consumed         = 0UL;
    3004             : 
    3005           3 :   pack->pending_smallest->cus         = ULONG_MAX;
    3006           3 :   pack->pending_smallest->bytes       = ULONG_MAX;
    3007           3 :   pack->pending_votes_smallest->cus   = ULONG_MAX;
    3008           3 :   pack->pending_votes_smallest->bytes = ULONG_MAX;
    3009             : 
    3010           3 :   release_tree( pack->pending,         pack->signature_map, pack->noncemap, pack->pool );
    3011           3 :   release_tree( pack->pending_votes,   pack->signature_map, pack->noncemap, pack->pool );
    3012           3 :   release_tree( pack->pending_bundles, pack->signature_map, pack->noncemap, pack->pool );
    3013             : 
    3014           3 :   ulong const pool_max = trp_pool_max( pack->pool );
    3015         132 :   for( ulong i=0UL; i<pool_max; i++ ) {
    3016         129 :     if( FD_UNLIKELY( pack->pool[ i ].root!=FD_ORD_TXN_ROOT_FREE ) ) {
    3017           0 :       fd_pack_ord_txn_t * const del = pack->pool + i;
    3018           0 :       fd_txn_t * txn = TXN( del->txn );
    3019           0 :       fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, del->txn->payload );
    3020           0 :       fd_acct_addr_t const * alt_adj = del->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    3021           0 :       fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( del->root ) );
    3022           0 :       fd_pack_penalty_treap_t * penalty_treap = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    3023           0 :       FD_TEST( penalty_treap );
    3024           0 :       release_tree( penalty_treap->penalty_treap, pack->signature_map, pack->noncemap, pack->pool );
    3025           0 :     }
    3026         129 :   }
    3027             : 
    3028           3 :   pack->compressed_slot_number = (ushort)(FD_PACK_SKIP_CNT+1);
    3029             : 
    3030           3 :   expq_remove_all( pack->expiration_q );
    3031             : 
    3032           3 :   acct_uses_clear( pack->acct_in_use  );
    3033             : 
    3034          18 :   while( !wcost_dlist_is_empty( pack->written_list, pack->writers ) ) {
    3035          15 :     fd_pack_wcost_ele_t * writer = wcost_dlist_ele_pop_head( pack->written_list, pack->writers );
    3036          15 :     writer->total_cost = 0UL;
    3037          15 :     wcost_map_ele_remove_fast( pack->writer_costs, writer, pack->writers );
    3038          15 :     wcost_pool_ele_release( pack->writers, writer );
    3039          15 :   }
    3040             : 
    3041           3 :   penalty_map_clear( pack->penalty_treaps );
    3042             : 
    3043           3 :   FD_PACK_BITSET_CLEAR( pack->bitset_rw_in_use );
    3044           3 :   FD_PACK_BITSET_CLEAR( pack->bitset_w_in_use  );
    3045           3 :   bitset_map_clear( pack->acct_to_bitset );
    3046           3 :   pack->bitset_avail[ 0 ] = FD_PACK_BITSET_SLOWPATH;
    3047        1027 :   for( ulong i=0UL; i<FD_PACK_BITSET_MAX; i++ ) pack->bitset_avail[ i+1UL ] = (ushort)i;
    3048           3 :   pack->bitset_avail_cnt = FD_PACK_BITSET_MAX;
    3049             : 
    3050           6 :   for( ulong i=0UL; i<pack->bank_tile_cnt; i++ ) pack->use_by_bank_cnt[i] = 0UL;
    3051           3 : }
    3052             : 
    3053             : 
    3054             : /* If delete_full_bundle is non-zero and the transaction to delete is
    3055             :    part of a bundle, the rest of the bundle it is part of will be
    3056             :    deleted as well.
    3057             :    If move_from_penalty_treap is non-zero and the transaction to delete
    3058             :    is in the pending treap, move the best transaction in any of the
    3059             :    conflicting penalty treaps to the pending treap (if there is one). */
    3060             : static ulong
    3061             : delete_transaction( fd_pack_t         * pack,
    3062             :                     fd_pack_ord_txn_t * containing,
    3063             :                     int                 delete_full_bundle,
    3064        3951 :                     int                 move_from_penalty_treap ) {
    3065             : 
    3066        3951 :   fd_txn_t * txn = TXN( containing->txn );
    3067        3951 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, containing->txn->payload );
    3068        3951 :   fd_acct_addr_t const * alt_adj = containing->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    3069             : 
    3070        3951 :   treap_t * root = NULL;
    3071        3951 :   int root_idx = containing->root;
    3072        3951 :   fd_pack_penalty_treap_t * penalty_treap = NULL;
    3073        3951 :   switch( root_idx & FD_ORD_TXN_ROOT_TAG_MASK ) {
    3074           0 :     case FD_ORD_TXN_ROOT_FREE:           FD_LOG_CRIT(( "Double free detected" ));
    3075         780 :     case FD_ORD_TXN_ROOT_PENDING:        root = pack->pending;         break;
    3076           0 :     case FD_ORD_TXN_ROOT_PENDING_VOTE:   root = pack->pending_votes;   break;
    3077         519 :     case FD_ORD_TXN_ROOT_PENDING_BUNDLE: root = pack->pending_bundles; break;
    3078        2652 :     case FD_ORD_TXN_ROOT_PENALTY( 0 ): {
    3079        2652 :       fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( root_idx ) );
    3080        2652 :       penalty_treap = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    3081        2652 :       FD_TEST( penalty_treap );
    3082        2652 :       root = penalty_treap->penalty_treap;
    3083        2652 :       break;
    3084        2652 :     }
    3085        3951 :   }
    3086             : 
    3087        3951 :   ulong delete_cnt = 0UL;
    3088        3951 :   if( FD_UNLIKELY( delete_full_bundle & (root==pack->pending_bundles) ) ) {
    3089             :     /* When we delete, the structure of the treap may move around, but
    3090             :        pointers to inside the pool will remain valid */
    3091         123 :     fd_pack_ord_txn_t * bundle_ptrs[ FD_PACK_MAX_TXN_PER_BUNDLE-1UL ];
    3092         123 :     fd_pack_ord_txn_t * pool       = pack->pool;
    3093         123 :     ulong               cnt        = 0UL;
    3094         123 :     ulong               bundle_idx = RC_TO_REL_BUNDLE_IDX( containing->rewards, containing->compute_est );
    3095             : 
    3096             :     /* Iterate in both directions from the current transaction */
    3097         123 :     for( treap_fwd_iter_t _cur=treap_fwd_iter_next( (treap_fwd_iter_t)treap_idx_fast( containing, pool ), pool );
    3098         426 :         !treap_fwd_iter_done( _cur ); _cur=treap_fwd_iter_next( _cur, pool ) ) {
    3099         303 :       fd_pack_ord_txn_t * cur = treap_fwd_iter_ele( _cur, pool );
    3100         303 :       if( FD_LIKELY( bundle_idx==RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est ) ) ) {
    3101         303 :         bundle_ptrs[ cnt++ ] = cur;
    3102         303 :       } else {
    3103           0 :         break;
    3104           0 :       }
    3105         303 :       FD_TEST( cnt<FD_PACK_MAX_TXN_PER_BUNDLE );
    3106         303 :     }
    3107             : 
    3108         123 :     for( treap_rev_iter_t _cur=treap_rev_iter_next( (treap_rev_iter_t)treap_idx_fast( containing, pool ), pool );
    3109         216 :         !treap_rev_iter_done( _cur ); _cur=treap_rev_iter_next( _cur, pool ) ) {
    3110          93 :       fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    3111          93 :       if( FD_LIKELY( bundle_idx==RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est ) ) ) {
    3112          93 :         bundle_ptrs[ cnt++ ] = cur;
    3113          93 :       } else {
    3114           0 :         break;
    3115           0 :       }
    3116          93 :       FD_TEST( cnt<FD_PACK_MAX_TXN_PER_BUNDLE );
    3117          93 :     }
    3118             : 
    3119             :     /* Delete them each, setting delete_full_bundle to 0 to avoid
    3120             :        infinite recursion. */
    3121         519 :     for( ulong k=0UL; k<cnt; k++ ) delete_cnt += delete_transaction( pack, bundle_ptrs[ k ], 0, 0 );
    3122         123 :   }
    3123             : 
    3124             : 
    3125        3951 :   if( FD_UNLIKELY( move_from_penalty_treap & (root==pack->pending) ) ) {
    3126             : 
    3127         774 :     fd_pack_ord_txn_t       * best         = NULL;
    3128         774 :     fd_pack_penalty_treap_t * best_penalty = NULL;
    3129             : 
    3130         774 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    3131        3399 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3132        2625 :       fd_pack_penalty_treap_t * p_trp = penalty_map_query( pack->penalty_treaps, *ACCT_ITER_TO_PTR( iter ), NULL );
    3133        2625 :       if( FD_UNLIKELY( p_trp ) ) {
    3134        1340 :         fd_pack_ord_txn_t * best_in_trp = treap_rev_iter_ele( treap_rev_iter_init( p_trp->penalty_treap, pack->pool ), pack->pool );
    3135        1340 :         if( FD_UNLIKELY( !best || COMPARE_WORSE( best, best_in_trp ) ) ) {
    3136         701 :           best         = best_in_trp;
    3137         701 :           best_penalty = p_trp;
    3138         701 :         }
    3139        1340 :       }
    3140        2625 :     }
    3141             : 
    3142         774 :     if( FD_LIKELY( best ) ) {
    3143             :       /* move best to the main treap */
    3144         701 :       treap_ele_remove( best_penalty->penalty_treap, best, pack->pool );
    3145         701 :       best->root = FD_ORD_TXN_ROOT_PENDING;
    3146         701 :       treap_ele_insert( pack->pending,               best, pack->pool );
    3147             : 
    3148         701 :       pack->pending_smallest->cus   = fd_ulong_min( pack->pending_smallest->cus,   best->compute_est             );
    3149         701 :       pack->pending_smallest->bytes = fd_ulong_min( pack->pending_smallest->bytes, best->txn_e->txnp->payload_sz );
    3150             : 
    3151         701 :       if( FD_UNLIKELY( !treap_ele_cnt( best_penalty->penalty_treap ) ) ) {
    3152           9 :         treap_delete( treap_leave( best_penalty->penalty_treap ) );
    3153           9 :         penalty_map_remove( pack->penalty_treaps, best_penalty );
    3154           9 :       }
    3155         701 :     }
    3156         774 :   }
    3157             : 
    3158        3951 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_ALL );
    3159       38088 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3160       34137 :     if( FD_UNLIKELY( fd_pack_unwritable_contains( ACCT_ITER_TO_PTR( iter ) ) ) ) continue;
    3161             : 
    3162       29664 :     release_result_t ret = release_bit_reference( pack, ACCT_ITER_TO_PTR( iter ) );
    3163       29664 :     FD_PACK_BITSET_CLEARN( pack->bitset_rw_in_use, ret.clear_rw_bit );
    3164       29664 :     FD_PACK_BITSET_CLEARN( pack->bitset_w_in_use,  ret.clear_w_bit  );
    3165       29664 :   }
    3166             : 
    3167        3951 :   if( FD_UNLIKELY( containing->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) {
    3168         261 :     noncemap_ele_remove_fast( pack->noncemap, containing, pack->pool );
    3169         261 :   }
    3170        3951 :   expq_remove( pack->expiration_q, containing->expq_idx );
    3171        3951 :   containing->root = FD_ORD_TXN_ROOT_FREE;
    3172        3951 :   treap_ele_remove( root, containing, pack->pool );
    3173        3951 :   sig2txn_ele_remove_fast( pack->signature_map, containing, pack->pool );
    3174        3951 :   trp_pool_ele_release( pack->pool, containing );
    3175             : 
    3176        3951 :   delete_cnt += 1UL;
    3177        3951 :   pack->pending_txn_cnt--;
    3178             : 
    3179        3951 :   if( FD_UNLIKELY( penalty_treap && treap_ele_cnt( root )==0UL ) ) {
    3180           0 :     penalty_map_remove( pack->penalty_treaps, penalty_treap );
    3181           0 :   }
    3182             : 
    3183        3951 :   return delete_cnt;
    3184        3951 : }
    3185             : 
    3186             : ulong
    3187             : fd_pack_delete_transaction( fd_pack_t              * pack,
    3188         180 :                             fd_ed25519_sig_t const * sig0 ) {
    3189         180 :   ulong cnt = 0;
    3190         180 :   ulong next = ULONG_MAX;
    3191             : 
    3192         180 :   fd_txn_e_t query_e = {0};
    3193         180 :   fd_memcpy( query_e.txnp[0].payload, sig0, FD_TXN_SIGNATURE_SZ );
    3194         180 :   for( ulong idx = sig2txn_idx_query_const( pack->signature_map, &query_e, ULONG_MAX, pack->pool );
    3195         336 :       idx!=ULONG_MAX; idx=next ) {
    3196             :     /* Iterating while deleting, not just this element, but perhaps the
    3197             :        whole bundle, feels a bit dangerous, but is actually fine because
    3198             :        a bundle can't contain two transactions with the same signature.
    3199             :        That means we know next is not part of the same bundle as idx,
    3200             :        which means that deleting idx will not delete next. */
    3201         156 :     next = sig2txn_idx_next_const( idx, ULONG_MAX, pack->pool );
    3202         156 :     cnt += delete_transaction( pack, pack->pool+idx, 1, 1 );
    3203         156 :   }
    3204             : 
    3205         180 :   return cnt;
    3206         180 : }
    3207             : 
    3208             : 
    3209             : int
    3210             : fd_pack_verify( fd_pack_t * pack,
    3211         435 :                 void      * scratch ) {
    3212             :   /* Invariants:
    3213             :      sig2txn_query has exact same contents as all treaps combined
    3214             :      root matches treap
    3215             :      Keys of acct_to_bitset is exactly union of all accounts in all
    3216             :             transactions in treaps, with ref counted appropriately
    3217             :      bits in bitset_avail is complement of bits allocated in
    3218             :             acct_to_bitset
    3219             :      expires_at consistent between treap, prq
    3220             :      use_by_bank does not contain duplicates
    3221             :      use_by_bank consistent with acct_in_use
    3222             :      elements in pool but not in a treap have root set to free
    3223             :      all penalty treaps have at least one transaction
    3224             :      all elements in penalty treaps are in the one that the root indicates
    3225             :      */
    3226             : 
    3227             :   /* TODO:
    3228             :      bitset_{r}w_in_use = bitset_map_query( everything in acct_in_use that doesn't have FD_PACK_IN_USE_BIT_CLEARED )
    3229             :      bitset_w_in_use & bitset_rw_in_use == bitset_w_in_use
    3230             :      */
    3231      314708 : #define VERIFY_TEST( cond, ... ) do {   \
    3232      314708 :     if( FD_UNLIKELY( !(cond) ) ) {      \
    3233           0 :       FD_LOG_WARNING(( __VA_ARGS__ ));  \
    3234           0 :       return -(__LINE__);               \
    3235           0 :     }                                   \
    3236      314708 :   } while( 0 )
    3237             : 
    3238         435 :   ulong max_acct_in_treap  = pack->pack_depth * FD_TXN_ACCT_ADDR_MAX;
    3239         435 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap  ) );
    3240         435 :   void * _bitset_map_copy = scratch;
    3241         435 :   void * _bitset_map_orig = bitset_map_leave( pack->acct_to_bitset );
    3242         435 :   fd_memcpy( _bitset_map_copy, _bitset_map_orig, bitset_map_footprint( lg_acct_in_trp ) );
    3243             : 
    3244         435 :   fd_pack_bitset_acct_mapping_t * bitset_copy = bitset_map_join( _bitset_map_copy );
    3245             : 
    3246             :   /* Check that each bit is in exactly one place */
    3247         435 :   FD_PACK_BITSET_DECLARE( processed ); FD_PACK_BITSET_CLEAR( processed );
    3248         435 :   FD_PACK_BITSET_DECLARE( bit       ); FD_PACK_BITSET_CLEAR( bit       );
    3249         435 :   FD_PACK_BITSET_DECLARE( full      ); FD_PACK_BITSET_CLEAR( full      );
    3250             : 
    3251         435 :   if( FD_UNLIKELY( pack->bitset_avail[0]!=FD_PACK_BITSET_SLOWPATH ) ) return -1;
    3252      148237 :   for( ulong i=1UL; i<=pack->bitset_avail_cnt; i++ ) {
    3253      147802 :     FD_PACK_BITSET_CLEAR( bit );
    3254      147802 :     FD_PACK_BITSET_SETN( bit, pack->bitset_avail[ i ] );
    3255      147802 :     VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, processed, processed ),
    3256      147802 :         "bit %hu in avail set twice", pack->bitset_avail[ i ] );
    3257      147802 :     FD_PACK_BITSET_OR( processed, bit );
    3258      147802 :   }
    3259             : 
    3260         435 :   ulong total_references = 0UL;
    3261    62865843 :   for( ulong i=0UL; i<bitset_map_slot_cnt( bitset_copy ); i++ ) {
    3262    62865408 :     if( !bitset_map_key_inval( bitset_copy[ i ].key ) ) {
    3263        1086 :       VERIFY_TEST( bitset_copy[ i ].ref_cnt>0UL, "account address in table with 0 ref count" );
    3264             : 
    3265        1086 :       total_references += bitset_copy[ i ].ref_cnt;
    3266             : 
    3267        1086 :       FD_PACK_BITSET_CLEAR( bit );
    3268        1086 :       FD_PACK_BITSET_SETN( bit, bitset_copy[ i ].bit );
    3269        1086 :       VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, processed, processed ), "bit %hu used twice", bitset_copy[ i ].bit );
    3270        1086 :       FD_PACK_BITSET_OR( processed, bit );
    3271        1086 :     }
    3272    62865408 :   }
    3273      148915 :   for( ulong i=0UL; i<FD_PACK_BITSET_MAX; i++ ) {
    3274      148480 :     FD_PACK_BITSET_CLEAR( bit );
    3275      148480 :     FD_PACK_BITSET_SETN( bit, i );
    3276      148480 :     VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, processed, processed ), "bit %lu missing", i );
    3277      148480 :     FD_PACK_BITSET_SETN( full, i );
    3278      148480 :   }
    3279             : 
    3280             : 
    3281         435 :   fd_pack_ord_txn_t  * pool = pack->pool;
    3282         435 :   treap_t * treaps[ 3 ] = { pack->pending, pack->pending_votes, pack->pending_bundles };
    3283         435 :   ulong txn_cnt = 0UL;
    3284             : 
    3285      984012 :   for( ulong k=0UL; k<3UL+penalty_map_slot_cnt( pack->penalty_treaps ); k++ ) {
    3286      983577 :     treap_t * treap = NULL;
    3287             : 
    3288      983577 :     if( k<3UL ) treap = treaps[ k ];
    3289      982272 :     else if( FD_LIKELY( penalty_map_key_inval( pack->penalty_treaps[ k-3UL ].key ) ) ) continue;
    3290           0 :     else {
    3291           0 :       treap = pack->penalty_treaps[ k-3UL ].penalty_treap;
    3292           0 :       VERIFY_TEST( treap_ele_cnt( treap )>0UL, "empty penalty treap in map" );
    3293           0 :     }
    3294             : 
    3295        1728 :     for( treap_rev_iter_t _cur=treap_rev_iter_init( treap, pool ); !treap_rev_iter_done( _cur );
    3296        1305 :         _cur=treap_rev_iter_next( _cur, pool ) ) {
    3297         423 :       txn_cnt++;
    3298         423 :       fd_pack_ord_txn_t const * cur = treap_rev_iter_ele_const( _cur, pool );
    3299         423 :       fd_txn_t const * txn = TXN(cur->txn);
    3300         423 :       fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, cur->txn->payload );
    3301         423 :       fd_acct_addr_t const * alt_adj = cur->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    3302             : 
    3303         423 :       fd_pack_ord_txn_t const * in_tbl = sig2txn_ele_query_const( pack->signature_map, &cur->_txn_e, NULL, pool );
    3304         423 :       VERIFY_TEST( in_tbl, "signature missing from sig2txn" );
    3305             : 
    3306         423 :       VERIFY_TEST( (ulong)(cur->root & FD_ORD_TXN_ROOT_TAG_MASK)==fd_ulong_min( k, 3UL )+1UL, "treap element had bad root" );
    3307         423 :       if( FD_LIKELY( (cur->root & FD_ORD_TXN_ROOT_TAG_MASK)==FD_ORD_TXN_ROOT_PENALTY(0) ) ) {
    3308           0 :         fd_acct_addr_t const * penalty_acct = ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( cur->root ) );
    3309           0 :         VERIFY_TEST( !memcmp( penalty_acct, pack->penalty_treaps[ k-3UL ].key.b, 32UL ), "transaction in wrong penalty treap" );
    3310           0 :       }
    3311         423 :       VERIFY_TEST( cur->expires_at>=pack->expire_before, "treap element expired" );
    3312             : 
    3313         423 :       fd_pack_expq_t const * eq = pack->expiration_q + cur->expq_idx;
    3314         423 :       VERIFY_TEST( eq->txn==cur, "expq inconsistent" );
    3315         423 :       VERIFY_TEST( eq->expires_at==cur->expires_at, "expq expires_at inconsistent" );
    3316             : 
    3317         423 :       FD_PACK_BITSET_DECLARE( complement );
    3318         423 :       FD_PACK_BITSET_COPY( complement, full );
    3319         423 :       for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    3320        1413 :           iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3321         990 :         fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    3322             : 
    3323         990 :         fd_pack_bitset_acct_mapping_t * q = bitset_map_query( bitset_copy, acct, NULL );
    3324         990 :         VERIFY_TEST( q, "account in transaction missing from bitset mapping" );
    3325         990 :         VERIFY_TEST( q->ref_cnt>0UL, "account in transaction ref_cnt already 0" );
    3326         990 :         q->ref_cnt--;
    3327         990 :         total_references--;
    3328             : 
    3329         990 :         FD_PACK_BITSET_CLEAR( bit );
    3330         990 :         FD_PACK_BITSET_SETN( bit, q->bit );
    3331         990 :         if( q->bit<FD_PACK_BITSET_MAX ) {
    3332         597 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, cur->rw_bitset, cur->rw_bitset ), "missing from rw bitset" );
    3333         597 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, cur->w_bitset,  cur->w_bitset  ), "missing from w bitset" );
    3334         597 :         }
    3335         990 :         FD_PACK_BITSET_CLEARN( complement, q->bit );
    3336         990 :       }
    3337         423 :       VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( complement, complement, cur->w_bitset,  cur->w_bitset ), "extra in w bitset" );
    3338             : 
    3339         423 :       for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    3340        1836 :           iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3341             : 
    3342        1413 :         fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    3343        1413 :         if( FD_UNLIKELY( fd_pack_unwritable_contains( &acct ) ) ) continue;
    3344         894 :         fd_pack_bitset_acct_mapping_t * q = bitset_map_query( bitset_copy, acct, NULL );
    3345         894 :         VERIFY_TEST( q, "account in transaction missing from bitset mapping" );
    3346         894 :         VERIFY_TEST( q->ref_cnt>0UL, "account in transaction ref_cnt already 0" );
    3347         894 :         q->ref_cnt--;
    3348         894 :         total_references--;
    3349             : 
    3350         894 :         FD_PACK_BITSET_CLEAR( bit );
    3351         894 :         FD_PACK_BITSET_SETN( bit, q->bit );
    3352         894 :         if( q->bit<FD_PACK_BITSET_MAX ) {
    3353         879 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, cur->rw_bitset, cur->rw_bitset ), "missing from rw bitset" );
    3354         879 :         }
    3355         894 :         FD_PACK_BITSET_CLEARN( complement, q->bit );
    3356         894 :       }
    3357         423 :       VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( complement, complement, cur->rw_bitset,  cur->rw_bitset ), "extra in rw bitset" );
    3358         423 :     }
    3359        1305 :   }
    3360             : 
    3361         435 :   bitset_map_leave( bitset_copy );
    3362         435 :   VERIFY_TEST( txn_cnt==pack->pending_txn_cnt, "txn_cnt" );
    3363             : 
    3364         435 :   VERIFY_TEST( total_references==0UL, "extra references in bitset mapping" );
    3365         435 :   ulong sig2txn_key_cnt = 0UL;
    3366         435 :   for( sig2txn_iter_t iter = sig2txn_iter_init( pack->signature_map, pool );
    3367         858 :       !sig2txn_iter_done( iter, pack->signature_map, pool );
    3368         435 :       iter = sig2txn_iter_next( iter, pack->signature_map, pool ) ) {
    3369         423 :     sig2txn_key_cnt++;
    3370         423 :   }
    3371         435 :   VERIFY_TEST( txn_cnt==sig2txn_key_cnt, "extra signatures in sig2txn" );
    3372         435 :   VERIFY_TEST( !sig2txn_verify( pack->signature_map, trp_pool_max( pool ), pool ), "sig2txn corrupt" );
    3373             : 
    3374             :   /* Count noncemap keys */
    3375         435 :   ulong noncemap_key_cnt = 0UL;
    3376         435 :   for( noncemap_iter_t iter = noncemap_iter_init( pack->noncemap, pool );
    3377         483 :       !noncemap_iter_done( iter, pack->noncemap, pool );
    3378         435 :       iter = noncemap_iter_next( iter, pack->noncemap, pool ) ) {
    3379          48 :     noncemap_key_cnt++;
    3380             :     /* Ensure element is in pool */
    3381          48 :     fd_pack_ord_txn_t const * ord = noncemap_iter_ele_const( iter, pack->noncemap, pool );
    3382          48 :     VERIFY_TEST( ord->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE, "invalid entry in noncemap" );
    3383             : 
    3384             :     /* Although pack allows multiple transactions with the same
    3385             :        signature in sig2txn (MAP_MULTI==1), the noncemap checks prevent
    3386             :        multiple nonce transactions with the same signature. */
    3387          48 :     VERIFY_TEST( ord==sig2txn_ele_query_const( pack->signature_map, &ord->_txn_e, NULL, pool ), "noncemap and sig2txn desynced" );
    3388          48 :   }
    3389         435 :   VERIFY_TEST( txn_cnt>=noncemap_key_cnt, "phantom txns in noncemap" );
    3390         435 :   VERIFY_TEST( !noncemap_verify( pack->noncemap, trp_pool_max( pool ), pool ), "noncemap corrupt" );
    3391             : 
    3392         435 :   ulong slots_found = 0UL;
    3393         435 :   ulong const pool_max = trp_pool_max( pool );
    3394      459492 :   for( ulong i=0UL; i<pool_max; i++ ) {
    3395      459057 :     fd_pack_ord_txn_t * ord = pack->pool + i;
    3396      459057 :     if( ord->root!=FD_ORD_TXN_ROOT_FREE ) slots_found++;
    3397      459057 :   }
    3398         435 :   VERIFY_TEST( slots_found==txn_cnt, "phantom slots in pool" );
    3399             : 
    3400         435 :   bitset_map_join( _bitset_map_orig );
    3401             : 
    3402         435 :   int lg_uses_tbl_sz = acct_uses_lg_slot_cnt( pack->acct_in_use );
    3403             : 
    3404         435 :   void * _acct_in_use_copy = scratch;
    3405         435 :   void * _acct_in_use_orig = acct_uses_leave( pack->acct_in_use );
    3406         435 :   fd_memcpy( _acct_in_use_copy, _acct_in_use_orig, acct_uses_footprint( lg_uses_tbl_sz ) );
    3407             : 
    3408         435 :   fd_pack_addr_use_t * acct_in_use_copy = acct_uses_join( _acct_in_use_copy );
    3409             : 
    3410         435 :   FD_PACK_BITSET_DECLARE(  w_complement );
    3411         435 :   FD_PACK_BITSET_DECLARE( rw_complement );
    3412         435 :   FD_PACK_BITSET_COPY(  w_complement, full );
    3413         435 :   FD_PACK_BITSET_COPY( rw_complement, full );
    3414             : 
    3415         435 :   FD_PACK_BITSET_DECLARE( rw_bitset );  FD_PACK_BITSET_COPY( rw_bitset, pack->bitset_rw_in_use );
    3416         435 :   FD_PACK_BITSET_DECLARE(  w_bitset );  FD_PACK_BITSET_COPY(  w_bitset, pack->bitset_w_in_use  );
    3417             : 
    3418             : 
    3419         435 :   ulong const EMPTY_MASK = ~(FD_PACK_IN_USE_WRITABLE | FD_PACK_IN_USE_BIT_CLEARED);
    3420             : 
    3421       12240 :   for( ulong bank=0UL; bank<pack->bank_tile_cnt; bank++ ) {
    3422             : 
    3423       11805 :     fd_pack_addr_use_t const * base = pack->use_by_bank[ bank ];
    3424       11805 :     ulong bank_mask = 1UL << bank;
    3425             : 
    3426       12660 :     for( ulong i=0UL; i<pack->use_by_bank_cnt[ bank ]; i++ ) {
    3427         855 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use_copy, base[i].key, NULL );
    3428         855 :       VERIFY_TEST( use, "acct in use by bank not in acct_in_use, or in uses_by_bank twice" );
    3429             : 
    3430         855 :       VERIFY_TEST( use->in_use_by & bank_mask, "acct in uses_by_bank doesn't have corresponding bit set in acct_in_use, or it was in the list twice" );
    3431             : 
    3432         855 :       fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, base[i].key, NULL );
    3433             :       /* The normal case is that the acct->bit mapping is preserved
    3434             :          while in use by other transactions in the pending list.  This
    3435             :          might not always happen though.  It's okay for the mapping to
    3436             :          get deleted while the acct is in use, which is noted with
    3437             :          BIT_CLEARED.  If that is set, the mapping may not exist, or it
    3438             :          may have been re-created, perhaps with a different bit. */
    3439         855 :       if( q==NULL ) VERIFY_TEST( use->in_use_by & FD_PACK_IN_USE_BIT_CLEARED, "acct in use not in acct_to_bitset, but not marked as cleared" );
    3440           0 :       else if( !(use->in_use_by & FD_PACK_IN_USE_BIT_CLEARED) ) {
    3441           0 :         FD_PACK_BITSET_CLEAR( bit );
    3442           0 :         FD_PACK_BITSET_SETN( bit, q->bit );
    3443           0 :         if( q->bit<FD_PACK_BITSET_MAX ) {
    3444           0 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, rw_bitset, rw_bitset ), "missing from rw bitset" );
    3445           0 :           if( use->in_use_by & FD_PACK_IN_USE_WRITABLE ) {
    3446           0 :             VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, w_bitset, w_bitset ), "missing from w bitset" );
    3447           0 :             FD_PACK_BITSET_CLEARN( w_complement, q->bit );
    3448           0 :           }
    3449           0 :         }
    3450           0 :         FD_PACK_BITSET_CLEARN( rw_complement, q->bit );
    3451           0 :       }
    3452         855 :       if( use->in_use_by & FD_PACK_IN_USE_WRITABLE ) VERIFY_TEST( (use->in_use_by & EMPTY_MASK)==bank_mask, "writable, but in use by multiple" );
    3453             : 
    3454         855 :       use->in_use_by &= ~bank_mask;
    3455         855 :       if( !(use->in_use_by & EMPTY_MASK) ) acct_uses_remove( acct_in_use_copy, use );
    3456         855 :     }
    3457       11805 :   }
    3458         435 :   VERIFY_TEST( acct_uses_key_cnt( acct_in_use_copy )==0UL, "stray uses in acct_in_use" );
    3459         435 :   VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( rw_complement, rw_complement, rw_bitset,  rw_bitset ), "extra in rw bitset" );
    3460         435 :   VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY(  w_complement,  w_complement,  w_bitset,   w_bitset ), "extra in w bitset" );
    3461             : 
    3462         435 :   acct_uses_leave( acct_in_use_copy );
    3463             : 
    3464         435 :   acct_uses_join( _acct_in_use_orig );
    3465         435 :   return 0;
    3466         435 : }
    3467             : 
    3468           3 : void * fd_pack_leave ( fd_pack_t * pack ) { FD_COMPILER_MFENCE(); return (void *)pack; }
    3469           3 : void * fd_pack_delete( void      * mem  ) { FD_COMPILER_MFENCE(); return mem;          }

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