LCOV - code coverage report
Current view: top level - disco/pack - fd_pack.c (source / functions) Hit Total Coverage
Test: cov.lcov Lines: 1600 1794 89.2 %
Date: 2026-08-17 04:34:10 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             : 
      12             : #define FD_PACK_USE_NON_TEMPORAL_MEMCPY 1
      13             : 
      14             : /* inline fd_hash and specialize for 32 bytes */
      15             : static inline ulong
      16             : fd_hash_32( ulong        seed,
      17     1190841 :             void const * buf ) {
      18    14290092 : #define ROTATE_LEFT(x,r) (((x)<<(r)) | ((x)>>(64-(r))))
      19    16671774 : #define C1 (11400714785074694791UL)
      20    13099251 : #define C2 (14029467366897019727UL)
      21     1190841 : #define C3 ( 1609587929392839161UL)
      22     4763364 : #define C4 ( 9650029242287828579UL)
      23     1190841 :   uchar const * p    = ((uchar const *)buf);
      24             : 
      25     1190841 :   ulong w = seed + (C1+C2);
      26     1190841 :   ulong x = seed + C2;
      27     1190841 :   ulong y = seed;
      28     1190841 :   ulong z = seed - C1;
      29             : 
      30     1190841 :   w += FD_LOAD( ulong, p    )*C2; w = ROTATE_LEFT( w, 31 ); w *= C1;
      31     1190841 :   x += FD_LOAD( ulong, p+ 8 )*C2; x = ROTATE_LEFT( x, 31 ); x *= C1;
      32     1190841 :   y += FD_LOAD( ulong, p+16 )*C2; y = ROTATE_LEFT( y, 31 ); y *= C1;
      33     1190841 :   z += FD_LOAD( ulong, p+24 )*C2; z = ROTATE_LEFT( z, 31 ); z *= C1;
      34             : 
      35     1190841 :   ulong h = ROTATE_LEFT( w, 1 ) + ROTATE_LEFT( x, 7 ) + ROTATE_LEFT( y, 12 ) + ROTATE_LEFT( z, 18 );
      36             : 
      37     1190841 :   w *= C2; w = ROTATE_LEFT( w, 31 ); w *= C1; h ^= w; h = h*C1 + C4;
      38     1190841 :   x *= C2; x = ROTATE_LEFT( x, 31 ); x *= C1; h ^= x; h = h*C1 + C4;
      39     1190841 :   y *= C2; y = ROTATE_LEFT( y, 31 ); y *= C1; h ^= y; h = h*C1 + C4;
      40     1190841 :   z *= C2; z = ROTATE_LEFT( z, 31 ); z *= C1; h ^= z; h = h*C1 + C4;
      41             : 
      42     1190841 :   h += 32UL;
      43             : 
      44             :   /* Final avalanche */
      45     1190841 :   h ^= h >> 33;
      46     1190841 :   h *= C2;
      47     1190841 :   h ^= h >> 29;
      48     1190841 :   h *= C3;
      49     1190841 :   h ^= h >> 32;
      50             : 
      51     1190841 : #undef C4
      52     1190841 : #undef C3
      53     1190841 : #undef C2
      54     1190841 : #undef C1
      55     1190841 : #undef ROTATE_LEFT
      56             : 
      57     1190841 :   return h;
      58     1190841 : }
      59             : 
      60             : /* Declare a bunch of helper structs used for pack-internal data
      61             :    structures. */
      62             : typedef struct {
      63             :   fd_acct_addr_t key;
      64             : } wrapped_acct_t;
      65             : 
      66             : /* fd_pack_ord_txn_t: An fd_txn_p_t with information required to order
      67             :    it by priority. */
      68             : struct fd_pack_private_ord_txn {
      69             :   /* It's important that there be no padding here (asserted below)
      70             :      because the code casts back and forth from pointers to this element
      71             :      to pointers to the whole struct. */
      72             :   union {
      73             :     fd_txn_p_t   txn[1];  /* txn is an alias for txn_e->txnp */
      74             :     fd_txn_e_t   txn_e[1];
      75             :     fd_txn_e_t   _txn_e;  /* Non-array type needed for map_chain */
      76             :   };
      77             : 
      78             :   /* Since this struct can be in one of several trees, it's helpful to
      79             :      store which tree.  This should be one of the FD_ORD_TXN_ROOT_*
      80             :      values. */
      81             :   int root;
      82             : 
      83             :   /* The sig2txn map_chain fields */
      84             :   ushort sigmap_next;
      85             :   ushort sigmap_prev;
      86             : 
      87             :   /* Each transaction is inserted with an expiration "time."  This code
      88             :      doesn't care about the units (blocks, rdtsc tick, ns, etc.), and
      89             :      doesn't require transactions to be inserted in expiration date
      90             :      order. */
      91             :   ulong expires_at;
      92             :   /* expq_idx: When this object is part of one of the treaps, it's
      93             :      also in the expiration priority queue.  This field (which is
      94             :      manipulated behind the scenes by the fd_prq code) stores where so
      95             :      that if we delete this transaction, we can also delete it from the
      96             :      expiration priority queue. */
      97             :   ulong expq_idx;
      98             : 
      99             :   /* The noncemap map_chain fields */
     100             :   ushort noncemap_next;
     101             :   ushort noncemap_prev;
     102             : 
     103             :   /* We want rewards*compute_est to fit in a ulong so that r1/c1 < r2/c2 can be
     104             :      computed as r1*c2 < r2*c1, with the product fitting in a ulong.
     105             :      compute_est has a small natural limit of mid-20 bits. rewards doesn't have
     106             :      a natural limit, so there is some argument to be made for raising the
     107             :      limit for rewards to 40ish bits. The struct has better packing with
     108             :      uint/uint though. */
     109             :   uint                __attribute__((aligned(64))) /* We want the treap fields and the bitsets
     110             :                                                        to be on the same double cache line pair */
     111             :                rewards;     /* in Lamports */
     112             :   uint         compute_est; /* in compute units */
     113             : 
     114             :   /* The treap fields */
     115             :   ushort left;
     116             :   ushort right;
     117             :   ushort parent;
     118             :   ushort prio;
     119             :   ushort prev;
     120             :   ushort next;
     121             : 
     122             :   /* skip: if we skip this transaction more than FD_PACK_SKIP_CNT times
     123             :      for reasons that won't go away until the end of the block, then we
     124             :      want to skip it very quickly.  If skip is in [1, FD_PACK_SKIP_CNT],
     125             :      then that means we have to skip it `skip` more times before taking
     126             :      any action.  If skip>FD_PACK_SKIP_CNT, then it is a compressed slot
     127             :      number during which it should be skipped, and we'll skip it until
     128             :      the compressed slot reaches a new value.  skip is never 0. */
     129             :   ushort skip;
     130             : 
     131             :   FD_PACK_BITSET_DECLARE( rw_bitset ); /* all accts this txn references */
     132             :   FD_PACK_BITSET_DECLARE(  w_bitset ); /* accts this txn write-locks    */
     133             : 
     134             : };
     135             : typedef struct fd_pack_private_ord_txn fd_pack_ord_txn_t;
     136             : 
     137             : /* We require that the payload starts at byte 0 of fd_pack_ord_txn_t,
     138             :    because we cast back and forth between fd_txn_p_t* and
     139             :    fd_pack_ord_txn_t*.
     140             :    GCC and Clang seem to disagree on the rules of offsetof. */
     141             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, txn          )==0UL, fd_pack_ord_txn_t );
     142             : #if FD_USING_CLANG
     143             : FD_STATIC_ASSERT( offsetof( fd_txn_p_t,             payload )==0UL, fd_pack_ord_txn_t );
     144             : #else
     145             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, txn->payload )==0UL, fd_pack_ord_txn_t );
     146             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, txn_e->txnp  )==0UL, fd_pack_ord_txn_t );
     147             : #endif
     148             : 
     149             : /* FD_ORD_TXN_ROOT is essentially a small union packed into an int.  The low
     150             :    byte is the "tag".  The higher 3 bytes depend on the low byte. */
     151       28599 : #define FD_ORD_TXN_ROOT_TAG_MASK        0xFF
     152      839472 : #define FD_ORD_TXN_ROOT_FREE            0
     153       37112 : #define FD_ORD_TXN_ROOT_PENDING         1
     154       29433 : #define FD_ORD_TXN_ROOT_PENDING_VOTE    2
     155        1065 : #define FD_ORD_TXN_ROOT_PENDING_BUNDLE  3
     156       30067 : #define FD_ORD_TXN_ROOT_PENALTY( idx ) (4 | (idx)<<8)
     157             : 
     158             : /* if root & TAG_MASK == PENALTY, then PENALTY_ACCT_IDX(root) gives the index
     159             :    in the transaction's list of account addresses of which penalty treap the
     160             :    transaction is in. */
     161             : #define FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( root ) (((root) & 0xFF00)>>8)
     162             : 
     163      175062 : #define FD_PACK_IN_USE_WRITABLE    (0x8000000000000000UL)
     164      141055 : #define FD_PACK_IN_USE_BIT_CLEARED (0x4000000000000000UL)
     165             : 
     166             : /* Each non-empty microblock we schedule also has an overhead of 48
     167             :    bytes that counts towards shed limits.  That comes from the 32 byte
     168             :    hash, the hash count (8 bytes) and the transaction count (8 bytes).
     169             :    We don't have to pay this overhead if the microblock is empty, since
     170             :    those microblocks get dropped. */
     171       29784 : #define MICROBLOCK_DATA_OVERHEAD 48UL
     172             : 
     173             : FD_STATIC_ASSERT( sizeof(fd_acct_addr_t)==sizeof(fd_pubkey_t), "" );
     174             : 
     175             : /* fd_pack_expq_t: An element of an fd_prq to sort the transactions by
     176             :    timeout.  This structure has several invariants for entries
     177             :    corresponding to pending transactions:
     178             :      expires_at == txn->expires_at
     179             :      txn->exp_prq_idx is the index of this structure
     180             :    Notice that prq is an array-based heap, which means the indexes of
     181             :    elements change.  The PRQ_TMP_ST macro is hijacked to keep that
     182             :    invariant up to date.
     183             : 
     184             :    Note: this could be easier if fd_heap supported deleting from the
     185             :    middle, but that's not possible with the current design of fd_heap,
     186             :    which omits a parent pointer for improved performance. */
     187             : struct fd_pack_expq {
     188             :   ulong               expires_at;
     189             :   fd_pack_ord_txn_t * txn;
     190             : };
     191             : typedef struct fd_pack_expq fd_pack_expq_t;
     192             : 
     193             : 
     194             : /* fd_pack_bitset_acct_mapping_t: An element of an fd_map_dynamic that
     195             :    maps an account address to the number of transactions that are
     196             :    referencing it and the bit that is reserved to indicate it in the
     197             :    bitset, if any. */
     198             : struct fd_pack_bitset_acct_mapping {
     199             :   fd_acct_addr_t key; /* account address */
     200             :   ulong          ref_cnt;
     201             : 
     202             :   /* first_instance and first_instance_was_write are only valid when
     203             :      bit==FD_PACK_BITSET_FIRST_INSTANCE, which is set when ref_cnt
     204             :      transitions from 0 to 1.  These just exist to implement the
     205             :      optimization that accounts referenced a single time aren't
     206             :      allocated a bit, but this seems to be an important optimization. */
     207             :   fd_pack_ord_txn_t * first_instance;
     208             :   int                 first_instance_was_write;
     209             : 
     210             :   /* bit is in [0, FD_PACK_BITSET_MAX) U
     211             :      { FD_PACK_BITSET_FIRST_INSTANCE, FD_PACK_BITSET_SLOWPATH }. */
     212             :   ushort              bit;
     213             : };
     214             : typedef struct fd_pack_bitset_acct_mapping fd_pack_bitset_acct_mapping_t;
     215             : 
     216             : 
     217             : struct fd_pack_wcost_ele {
     218             :   fd_acct_addr_t key; /* account address */
     219             :   ulong          total_cost;
     220             :   union {
     221             :     uint         map_next;
     222             :     uint         pool_next;
     223             :   };
     224             :   uint           map_prev;
     225             :   uint           dlist_next;
     226             :   uint           dlist_prev;
     227             : };
     228             : typedef struct fd_pack_wcost_ele fd_pack_wcost_ele_t;
     229             : 
     230             : 
     231             : /* pack maintains a small state machine related to initializer bundles.
     232             :    See the header file for more details about it, but it's
     233             :    also summarized here:
     234             :    * NOT_INITIALIZED: The starting state for each block
     235             :    * PENDING: an initializer bundle has been scheduled, but pack has
     236             :      not observed its result yet, so we don't know if it was successful
     237             :      or not.
     238             :    * FAILED: the most recently scheduled initializer bundle failed
     239             :      for reasons other than already being executed.  Most commonly, this
     240             :      could be because of a bug in the code that generated the
     241             :      initializer bundle, a lack of fee payer balance, or an expired
     242             :      blockhash.
     243             :    * READY: the most recently scheduled initialization bundle succeeded
     244             :      and normal bundles can be scheduled in this slot. */
     245          12 : #define FD_PACK_IB_STATE_NOT_INITIALIZED 0
     246           0 : #define FD_PACK_IB_STATE_PENDING         1
     247           0 : #define FD_PACK_IB_STATE_FAILED          2
     248           3 : #define FD_PACK_IB_STATE_READY           3
     249             : 
     250             : 
     251             : /* Returns 1 if x.rewards/x.compute < y.rewards/y.compute. Not robust. */
     252      126822 : #define COMPARE_WORSE(x,y) ( ((ulong)((x)->rewards)*(ulong)((y)->compute_est)) < ((ulong)((y)->rewards)*(ulong)((x)->compute_est)) )
     253             : 
     254             : /* Declare all the data structures */
     255             : 
     256             : 
     257             : /* Define the big max-"heap" that we pull transactions off to schedule.
     258             :    The priority is given by reward/compute.  We may want to add in some
     259             :    additional terms at a later point.  In order to cheaply remove nodes,
     260             :    we actually use a treap.  */
     261             : #define POOL_NAME       trp_pool
     262         882 : #define POOL_T          fd_pack_ord_txn_t
     263             : #define POOL_IDX_T      ushort
     264      418617 : #define POOL_NEXT       parent
     265             : #include "../../util/tmpl/fd_pool.c"
     266             : 
     267             : #define TREAP_T         fd_pack_ord_txn_t
     268             : #define TREAP_NAME      treap
     269             : #define TREAP_QUERY_T   void *                                         /* We don't use query ... */
     270             : #define TREAP_CMP(a,b)  (__extension__({ (void)(a); (void)(b); -1; })) /* which means we don't need to give a real
     271             :                                                                           implementation to cmp either */
     272      466806 : #define TREAP_IDX_T     ushort
     273             : #define TREAP_OPTIMIZE_ITERATION 1
     274      126822 : #define TREAP_LT        COMPARE_WORSE
     275             : #include "../../util/tmpl/fd_treap.c"
     276             : 
     277             : 
     278             : #define MAP_NAME              sig2txn
     279             : #define MAP_OPTIMIZE_RANDOM_ACCESS_REMOVAL 1
     280             : #define MAP_MULTI              1
     281       34419 : #define MAP_ELE_T              fd_pack_ord_txn_t
     282       57513 : #define MAP_PREV               sigmap_prev
     283       80163 : #define MAP_NEXT               sigmap_next
     284       38955 : #define MAP_IDX_T              ushort
     285             : 
     286             : #define MAP_KEY_T              fd_txn_e_t
     287       67433 : #define MAP_KEY                _txn_e
     288       70647 : #define TXNE_TO_SIG(ptr)       (__extension__({ fd_txn_p_t const * __p = (ptr)->txnp; __p->payload + TXN(__p)->signature_off;  }))
     289        1070 : #define MAP_KEY_EQ(k0,k1)      (!memcmp( TXNE_TO_SIG(k0), TXNE_TO_SIG(k1), FD_TXN_SIGNATURE_SZ) )
     290       68507 : #define MAP_KEY_HASH(key,seed) fd_hash( (seed), TXNE_TO_SIG(key), 64UL )
     291             : #include "../../util/tmpl/fd_map_chain.c"
     292             : 
     293             : 
     294             : /* noncemap: A map from (nonce account, nonce authority, recent
     295             :    blockhash) to a durable nonce transaction containing it.  We only
     296             :    want to allow one transaction in the pool at a time with a given
     297             :    (nonce account, recent blockhash) tuple value.  The question is: can
     298             :    adding this limitation cause us to throw out potentially valuable
     299             :    transaction?  The answer is yes, but only very rarely, and the
     300             :    savings are worth it.  Suppose we have durable nonce transactions t1
     301             :    and t2 that advance the same nonce account and have the same value
     302             :    for the recent blockhash.
     303             : 
     304             :    - If t1 lands on chain, then it will advance the nonce account, and
     305             :    t2 will certainly not land on chain.
     306             :    - If t1 fails with AlreadyExecuted, that means the nonce account was
     307             :    advanced when t1 landed in a previous block, so t2 will certainly not
     308             :    land on chain.
     309             :    - If t1 fails with BlockhashNotFound, then the nonce account was
     310             :    advanced in some previous transaction, so again, t2 will certainly
     311             :    not land on chain.
     312             :    - If t1 does not land on chain because of an issue with the fee
     313             :    payer, it's possible that t2 could land on chain if it used a
     314             :    different fee payer, but historical data shows this is unlikely.
     315             :    - If t1 does not land on chain because it is part of a bundle that
     316             :    fails for an unrelated reason, it's possible that t2 could land on
     317             :    chain, but again, historical data says this is rare.
     318             : 
     319             :    We need to include the nonce authority in the hash to prevent one
     320             :    user from being able to DoS another user. */
     321             : 
     322             : typedef struct {
     323             :   uchar const * recent_blockhash;
     324             :   fd_acct_addr_t const * nonce_acct;
     325             :   fd_acct_addr_t const * nonce_auth;
     326             : } noncemap_extract_t;
     327             : 
     328             : /* k must be a valid, durable nonce transaction.  No error checking is
     329             :    done. */
     330             : static inline void
     331             : noncemap_extract( fd_txn_e_t const   * k,
     332        3395 :                   noncemap_extract_t * out ) {
     333        3395 :   fd_txn_t const * txn = TXN(k->txnp);
     334        3395 :   out->recent_blockhash = fd_txn_get_recent_blockhash( txn, k->txnp->payload );
     335             : 
     336        3395 :   ulong nonce_idx = k->txnp->payload[ txn->instr[ 0 ].acct_off+0 ];
     337        3395 :   ulong autho_idx = k->txnp->payload[ txn->instr[ 0 ].acct_off+2 ];
     338             : 
     339        3395 :   ulong imm_cnt = fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
     340        3395 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, k->txnp->payload );
     341        3395 :   fd_acct_addr_t const * alt_adj = k->alt_accts - imm_cnt;
     342        3395 :   out->nonce_acct = fd_ptr_if( nonce_idx<imm_cnt, accts, alt_adj )+nonce_idx;
     343             :   /* The nonce authority must be a signer, so it must be an immediate
     344             :      account. */
     345        3395 :   out->nonce_auth = accts+autho_idx;
     346        3395 : }
     347             : 
     348             : static inline int
     349             : noncemap_key_eq_internal( fd_txn_e_t const * k0,
     350         182 :                           fd_txn_e_t const * k1 ) {
     351         182 :   noncemap_extract_t e0[1], e1[1];
     352         182 :   noncemap_extract( k0, e0 );
     353         182 :   noncemap_extract( k1, e1 );
     354             : 
     355         182 :   if( FD_UNLIKELY( memcmp( e0->recent_blockhash, e1->recent_blockhash, 32UL ) ) ) return 0;
     356          63 :   if( FD_UNLIKELY( memcmp( e0->nonce_acct,       e1->nonce_acct,       32UL ) ) ) return 0;
     357          63 :   if( FD_UNLIKELY( memcmp( e0->nonce_auth,       e1->nonce_auth,       32UL ) ) ) return 0;
     358          63 :   return 1;
     359          63 : }
     360             : 
     361             : static inline ulong
     362             : noncemap_key_hash_internal( ulong              seed,
     363        3031 :                             fd_txn_e_t const * k ) {
     364             :   /* TODO: This takes >100 cycles! */
     365        3031 :   noncemap_extract_t e[1];
     366        3031 :   noncemap_extract( k, e );
     367        3031 :   return fd_hash( seed,              e->recent_blockhash, 32UL ) ^
     368        3031 :          fd_hash( seed+ 864394383UL, e->nonce_acct,       32UL ) ^
     369        3031 :          fd_hash( seed+3818662446UL, e->nonce_auth,       32UL );
     370        3031 : }
     371             : 
     372             : #define MAP_NAME               noncemap
     373             : #define MAP_OPTIMIZE_RANDOM_ACCESS_REMOVAL 1
     374             : #define MAP_MULTI              0
     375         375 : #define MAP_ELE_T              fd_pack_ord_txn_t
     376         577 : #define MAP_PREV               noncemap_prev
     377        1092 : #define MAP_NEXT               noncemap_next
     378        3945 : #define MAP_IDX_T              ushort
     379             : #define MAP_KEY_T              fd_txn_e_t
     380         751 : #define MAP_KEY                _txn_e
     381         182 : #define MAP_KEY_EQ(k0,k1)      noncemap_key_eq_internal( (k0), (k1) )
     382        3031 : #define MAP_KEY_HASH(key,seed) noncemap_key_hash_internal( (seed), (key) )
     383             : #include "../../util/tmpl/fd_map_chain.c"
     384             : 
     385             : 
     386             : static const fd_acct_addr_t null_addr = { 0 };
     387             : 
     388             : #define MAP_NAME              acct_uses
     389      503769 : #define MAP_T                 fd_pack_addr_use_t
     390      611372 : #define MAP_KEY_T             fd_acct_addr_t
     391    12688666 : #define MAP_KEY_NULL          null_addr
     392             : #if FD_HAS_AVX
     393      611372 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     394             : #else
     395             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     396             : #endif
     397      386530 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     398             : #define MAP_KEY_EQUAL_IS_SLOW 1
     399             : #define MAP_MEMOIZE           0
     400      502136 : #define MAP_KEY_HASH(key,s)   ((uint)fd_hash_32( s, (key).b ))
     401             : #include "../../util/tmpl/fd_map_dynamic.c"
     402             : 
     403             : #define MAP_NAME              wcost_map
     404        8154 : #define MAP_ELE_T             fd_pack_wcost_ele_t
     405             : #define MAP_KEY_T             fd_acct_addr_t
     406      220711 : #define MAP_IDX_T             uint
     407       28010 : #define MAP_NEXT              map_next
     408       19576 : #define MAP_PREV              map_prev
     409             : #define MAP_KEY_NULL          null_addr
     410             : #define MAP_OPTIMIZE_RANDOM_ACCESS_REMOVAL 1
     411       95860 : #define MAP_KEY_EQ(k0,k1)     (!memcmp((k0)->b,(k1)->b, FD_TXN_ACCT_ADDR_SZ))
     412      161526 : #define MAP_KEY_HASH(key,s)   ((uint)fd_hash_32( s, (key)->b ))
     413             : #include "../../util/tmpl/fd_map_chain.c"
     414             : 
     415             : #define POOL_NAME             wcost_pool
     416         588 : #define POOL_T                fd_pack_wcost_ele_t
     417             : #define POOL_IDX_T            uint
     418    47067427 : #define POOL_NEXT             pool_next
     419             : #include "../../util/tmpl/fd_pool.c"
     420             : 
     421             : #define DLIST_NAME            wcost_dlist
     422             : #define DLIST_ELE_T           fd_pack_wcost_ele_t
     423             : #define DLIST_IDX_T           uint
     424       27427 : #define DLIST_NEXT            dlist_next
     425       19276 : #define DLIST_PREV            dlist_prev
     426             : #include "../../util/tmpl/fd_dlist.c"
     427             : 
     428             : #define MAP_NAME              bitset_map
     429      455635 : #define MAP_T                 fd_pack_bitset_acct_mapping_t
     430      534765 : #define MAP_KEY_T             fd_acct_addr_t
     431    48666842 : #define MAP_KEY_NULL          null_addr
     432             : #if FD_HAS_AVX
     433    63400173 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     434             : #else
     435             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     436             : #endif
     437      370682 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     438             : #define MAP_KEY_EQUAL_IS_SLOW 1
     439             : #define MAP_MEMOIZE           0
     440      454320 : #define MAP_KEY_HASH(key,s)   ((uint)fd_hash_32( s, (key).b ))
     441             : #include "../../util/tmpl/fd_map_dynamic.c"
     442             : 
     443             : 
     444             : #define MAP_NAME              acct_blocklist
     445      225954 : #define MAP_T                 wrapped_acct_t
     446             : /* Add 1 to the slot cnt to ensure the map is sparse even at capacity */
     447      235563 : #define MAP_LG_SLOT_CNT       (FD_PACK_ACCT_BLOCKLIST_LG_MAX+1)
     448      225663 : #define MAP_KEY_T             fd_acct_addr_t
     449        9600 : #define MAP_KEY_NULL          null_addr
     450             : #if FD_HAS_AVX
     451      452877 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     452             : #else
     453             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     454             : #endif
     455      225600 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     456             : /* It would be nice if this were seeded, but since fd_map doesn't have
     457             :    any auxiliary data, there's not a clear place to store the seed.
     458             :    It's okay though, because the insert process is trusted, since it
     459             :    comes from operator config. */
     460      225654 : #define MAP_KEY_HASH(key)     ((uint)fd_ulong_hash( fd_ulong_load_8( (key).b ) ))
     461             : #define MAP_KEY_EQUAL_IS_SLOW 1
     462             : #define MAP_MEMOIZE           0
     463             : #define MAX_QUERY_OPT         2 /* rare hits */
     464             : #include "../../util/tmpl/fd_map.c"
     465             : 
     466             : /* Since transactions can also expire, we also maintain a parallel
     467             :    priority queue.  This means elements are simultaneously part of the
     468             :    treap (ordered by priority) and the expiration queue (ordered by
     469             :    expiration).  It's tempting to use the priority field of the treap
     470             :    for this purpose, but that can result in degenerate treaps in some
     471             :    cases. */
     472             : #define PRQ_NAME             expq
     473      112815 : #define PRQ_T                fd_pack_expq_t
     474       69300 : #define PRQ_TIMEOUT_T        ulong
     475       69300 : #define PRQ_TIMEOUT          expires_at
     476       54210 : #define PRQ_TMP_ST(p,t)      do {                                   \
     477       54210 :                                (p)[0] = (t);                        \
     478       54210 :                                t.txn->expq_idx = (ulong)((p)-heap); \
     479       54210 :                              } while( 0 )
     480             : #include "../../util/tmpl/fd_prq.c"
     481             : 
     482             : /* With realistic traffic patterns, we often see many, many transactions
     483             :    competing for the same writable account.  Since only one of these can
     484             :    execute at a time, we sometimes waste lots of scheduling time going
     485             :    through them one at a time.  To combat that, when a transaction
     486             :    writes to an account with more than PENALTY_TREAP_THRESHOLD
     487             :    references (readers or writers), instead of inserting it into the
     488             :    main treap, we insert it into a penalty treap for that specific hot
     489             :    account address.  These transactions are not immediately available
     490             :    for scheduling.  Then, when a transaction that writes to the hot
     491             :    address completes, we move the most lucrative transaction from the
     492             :    penalty treap to the main treap, making it available for scheduling.
     493             :    This policy may slightly violate the price-time priority scheduling
     494             :    approach pack normally uses: if the most lucrative transaction
     495             :    competing for hot state arrives after PENALTY_TREAP_THRESHOLD has
     496             :    been hit, it may be scheduled second instead of first.  However, if
     497             :    the account is in use at the time the new transaction arrives, it
     498             :    will be scheduled next, as desired.  This minor difference seems
     499             :    reasonable to reduce complexity.
     500             : 
     501             :    fd_pack_penalty_treap is one account-specific penalty treap.  All the
     502             :    transactions in the penalty_treap treap write to key.
     503             : 
     504             :    penalty_map is the fd_map_dynamic that maps accounts to their
     505             :    respective penalty treaps. */
     506             : struct fd_pack_penalty_treap {
     507             :   fd_acct_addr_t key;
     508             :   treap_t penalty_treap[1];
     509             : };
     510             : typedef struct fd_pack_penalty_treap fd_pack_penalty_treap_t;
     511             : 
     512             : #define MAP_NAME              penalty_map
     513       73450 : #define MAP_T                 fd_pack_penalty_treap_t
     514       72881 : #define MAP_KEY_T             fd_acct_addr_t
     515      759189 : #define MAP_KEY_NULL          null_addr
     516             : #if FD_HAS_AVX
     517     1055153 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     518             : #else
     519             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     520             : #endif
     521       72839 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     522             : #define MAP_KEY_EQUAL_IS_SLOW 1
     523             : #define MAP_MEMOIZE           0
     524       72859 : #define MAP_KEY_HASH(key,s)   ((uint)fd_hash_32( s, (key).b ))
     525             : #include "../../util/tmpl/fd_map_dynamic.c"
     526             : 
     527             : /* PENALTY_TREAP_THRESHOLD: How many references to an account do we
     528             :    allow before subsequent transactions that write to the account go to
     529             :    the penalty treap. */
     530      172347 : #define PENALTY_TREAP_THRESHOLD 64UL
     531             : 
     532             : 
     533             : /* FD_PACK_SKIP_CNT: How many times we'll skip a transaction (for
     534             :    reasons other than account conflicts) before we won't consider it
     535             :    until the next slot.  For performance reasons, this doesn't reset at
     536             :    the end of a slot, so e.g. we might skip twice in slot 1, then three
     537             :    times in slot 2, which would be enough to prevent considering it
     538             :    until slot 3.  The main reason this is not 1 is that some skips that
     539             :    seem permanent until the end of the slot can actually go away based
     540             :    on rebates. */
     541       37485 : #define FD_PACK_SKIP_CNT 50UL
     542             : 
     543             : /* Finally, we can now declare the main pack data structure */
     544             : struct fd_pack_private {
     545             :   ulong      pack_depth;
     546             :   ulong      bundle_meta_sz; /* if 0, bundles are disabled */
     547             :   ulong      bank_tile_cnt;
     548             : 
     549             :   fd_pack_limits_t lim[1];
     550             : 
     551             :   ulong      pending_txn_cnt; /* Summed across all treaps */
     552             :   ulong      microblock_cnt; /* How many microblocks have we
     553             :                                 generated in this block? */
     554             :   ulong      data_bytes_consumed; /* How much data is in this block so
     555             :                                      far ? */
     556             :   /* There's a limit on the total amount that transactions in a block
     557             :      can allocate.  How much of that limit have we consumed? */
     558             :   ulong      alloc_consumed;
     559             : 
     560             :   /* counters / gauge for schedule outcome enums */
     561             :   ulong      sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_CNT ];
     562             : 
     563             :   fd_rng_t * rng;
     564             : 
     565             :   ulong      cumulative_block_cost;
     566             :   ulong      cumulative_vote_cost;
     567             : 
     568             :   /* expire_before: Any transactions with expires_at strictly less than
     569             :      the current expire_before are removed from the available pending
     570             :      transaction.  Here, "expire" is used as a verb: cause all
     571             :      transactions before this time to expire. */
     572             :   ulong      expire_before;
     573             : 
     574             :   /* outstanding_microblock_mask: a bitmask indicating which banking
     575             :      tiles have outstanding microblocks, i.e. fd_pack has generated a
     576             :      microblock for that banking tile and the banking tile has not yet
     577             :      notified fd_pack that it has completed it. */
     578             :   ulong      outstanding_microblock_mask;
     579             : 
     580             :   /* The actual footprint for the pool and maps is allocated
     581             :      in the same order in which they are declared immediately following
     582             :      the struct.  I.e. these pointers point to memory not far after the
     583             :      struct.  The trees are just pointers into the pool so don't take up
     584             :      more space. */
     585             : 
     586             :   fd_pack_ord_txn_t * pool;
     587             : 
     588             :   /* Treaps (sorted by priority) of pending transactions.  We store the
     589             :      pending simple votes and transactions that come from bundles
     590             :      separately. */
     591             :   treap_t pending[1];
     592             :   treap_t pending_votes[1];
     593             :   treap_t pending_bundles[1];
     594             : 
     595             :   /* penalty_treaps: an fd_map_dynamic mapping hotly contended account
     596             :      addresses to treaps of transactions that write to them.  We try not
     597             :      to allow more than roughly PENALTY_TREAP_THRESHOLD transactions in
     598             :      the main treap that write to each account, though this is not
     599             :      exact. */
     600             :   fd_pack_penalty_treap_t * penalty_treaps;
     601             : 
     602             :   /* initializer_bundle_state: The current state of the initialization
     603             :      bundle state machine.  One of the FD_PACK_IB_STATE_* values.  See
     604             :      the long comment in the header and the comments attached to the
     605             :      respective values for a discussion of what each state means and the
     606             :      transitions between them. */
     607             :   int   initializer_bundle_state;
     608             : 
     609             :   /* relative_bundle_idx: the number of bundles that have been inserted
     610             :      since the last time pending_bundles was empty.  See the long
     611             :      comment about encoding this index in the rewards field of each
     612             :      transaction in the bundle, and why it is important that this reset
     613             :      to 0 as frequently as possible. */
     614             :   ulong relative_bundle_idx;
     615             : 
     616             :   /* pending{_votes}_smallest: keep a conservative estimate of the
     617             :      smallest transaction (by cost units and by bytes) in each heap.
     618             :      Both CUs and bytes should be set to ULONG_MAX is the treap is
     619             :      empty. */
     620             :   fd_pack_smallest_t pending_smallest[1];
     621             :   fd_pack_smallest_t pending_votes_smallest[1];
     622             : 
     623             :   /* expiration_q: At the same time that a transaction is in exactly one
     624             :      of the above treaps, it is also in the expiration queue, sorted by
     625             :      its expiration time.  This enables deleting all transactions that
     626             :      have expired, regardless of which treap they are in. */
     627             :   fd_pack_expq_t * expiration_q;
     628             : 
     629             :   /* acct_in_use: Map from account address to bitmask indicating which
     630             :      bank tiles are using the account and whether that use is read or
     631             :      write (msb). */
     632             :   fd_pack_addr_use_t   * acct_in_use;
     633             : 
     634             :   /* bitset_{w, rw}_in_use stores a subset of the information in
     635             :      acct_in_use using the compressed set format explained at the top of
     636             :      this file.  rw_in_use stores accounts in use for read or write
     637             :      while w_in_use stores only those in use for write. */
     638             :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
     639             :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
     640             : 
     641             :   /* writer_costs: Map (fd_map_chain) from account addresses to the sum
     642             :      of costs of transactions that write to the account.  Used for
     643             :      enforcing limits on the max write cost per account per block. */
     644             :   wcost_map_t   * writer_costs;
     645             : 
     646             :   /* written_list: At the end of every slot, we have to clear out
     647             :      writer_costs.  The map is large, but typically very sparsely
     648             :      populated.  As an optimization, we keep a doubly linked list of the
     649             :      elements actually used */
     650             :   wcost_dlist_t  written_list[1];
     651             : 
     652             :   /* writers: This is the fd_pool that backs writer_costs and
     653             :      written_list.  Each element is either in writers (as a fd_pool) OR
     654             :      in both writer_costs and written_list. */
     655             :   fd_pack_wcost_ele_t  * writers;
     656             : 
     657             :   /* top_writers: A simple max heap of the top 5 writers in the slot,
     658             :      used by downstream consumers for monitoring purposes. */
     659             :   fd_pack_addr_use_t top_writers[ FD_PACK_TOP_WRITERS_CNT ];
     660             : 
     661             :   /* At initialization time, the caller can configure a blocklist of
     662             :      accounts.  Any transaction that includes one of these accounts will
     663             :      be rejected.  This is an fd_map, and it's effectively const. */
     664             :   wrapped_acct_t        acct_blocklist[ 2*FD_PACK_ACCT_BLOCKLIST_MAX ];
     665             : 
     666             :   /* Noncemap is a map_chain that maps from tuples (nonce account,
     667             :      recent blockhash value, nonce authority) to a transaction.  This
     668             :      map stores exactly the transactions in pool that have the nonce
     669             :      flag set. */
     670             :   noncemap_t * noncemap;
     671             : 
     672             :   sig2txn_t * signature_map; /* Stores pointers into pool for deleting by signature */
     673             : 
     674             :   /* bundle_temp_map: A fd_map_dynamic (although it could be an fd_map)
     675             :      used during fd_pack_try_schedule_bundle to store information about
     676             :      what accounts are used by transactions in the bundle.  It's empty
     677             :      (in a map sense) outside of calls to try_schedule_bundle, and each
     678             :      call to try_schedule_bundle clears it after use.  If bundles are
     679             :      disabled, this is a valid fd_map_dynamic, but it's as small as
     680             :      convenient and remains empty. */
     681             :   fd_pack_addr_use_t * bundle_temp_map;
     682             : 
     683             : 
     684             :   /* use_by_bank: An array of size (max_txn_per_microblock *
     685             :      FD_TXN_ACCT_ADDR_MAX) for each banking tile.  Only the MSB of
     686             :      in_use_by is relevant.  Addressed use_by_bank[i][j] where i is in
     687             :      [0, bank_tile_cnt) and j is in [0, use_by_bank_cnt[i]).  Used
     688             :      mostly for clearing the proper bits of acct_in_use when a
     689             :      microblock finishes.
     690             : 
     691             :      use_by_bank_txn: indexed [i][j], where i is in [0, bank_tile_cnt)
     692             :      and j is in [0, max_txn_per_microblock).  Transaction j in the
     693             :      microblock currently scheduled to bank i uses account addresses in
     694             :      use_by_bank[i][k] where k is in [0, use_by_bank[i][j]).  For
     695             :      example, if use_by_bank[i][0] = 2 and use_by_bank[i][1] = 3, then
     696             :      all the accounts that the first transaction in the outstanding
     697             :      microblock for bank 0 uses are contained in the set
     698             :                { use_by_bank[i][0], use_by_bank[i][1] },
     699             :      and all the accounts in the second transaction in the microblock
     700             :      are in the set
     701             :         { use_by_bank[i][0], use_by_bank[i][1], use_by_bank[i][2] }.
     702             :      Each transaction writes to at least one account (the fee payer)
     703             :      that no other transaction scheduled to the bank uses, which means
     704             :      that use_by_bank_txn[i][j] - use_by_bank_txn[i][j-1] >= 1 (with 0
     705             :      for use_by_bank_txn[i][-1]).  This means we can stop iterating when
     706             :      use_by_bank_txn[i][j] == use_by_bank_cnt[i].  */
     707             :   fd_pack_addr_use_t * use_by_bank    [ FD_PACK_MAX_EXECLE_TILES ];
     708             :   ulong                use_by_bank_cnt[ FD_PACK_MAX_EXECLE_TILES ];
     709             :   ulong *              use_by_bank_txn[ FD_PACK_MAX_EXECLE_TILES ];
     710             : 
     711             :   fd_histf_t txn_per_microblock [ 1 ];
     712             :   fd_histf_t vote_per_microblock[ 1 ];
     713             : 
     714             :   fd_histf_t scheduled_cus_per_block[ 1 ];
     715             :   fd_histf_t rebated_cus_per_block  [ 1 ];
     716             :   fd_histf_t net_cus_per_block      [ 1 ];
     717             :   fd_histf_t pct_cus_per_block      [ 1 ];
     718             :   ulong      cumulative_rebated_cus;
     719             : 
     720             : 
     721             :   /* compressed_slot_number: a number in (FD_PACK_SKIP_CNT, USHORT_MAX]
     722             :      that advances each time we start packing for a new slot. */
     723             :   ushort     compressed_slot_number;
     724             : 
     725             :   /* bitset_avail: a stack of which bits are not currently reserved and
     726             :      can be used to represent an account address.
     727             :      Indexed [0, bitset_avail_cnt].  Element 0 is fixed at
     728             :      FD_PACK_BITSET_SLOWPATH. */
     729             :   ushort bitset_avail[ 1UL+FD_PACK_BITSET_MAX ];
     730             :   ulong  bitset_avail_cnt;
     731             : 
     732             :   /* acct_to_bitset: an fd_map_dynamic that maps acct addresses to the
     733             :      reference count, which bit, etc. */
     734             :   fd_pack_bitset_acct_mapping_t * acct_to_bitset;
     735             : 
     736             :   /* chdkup: scratch memory chkdup needs for its internal processing */
     737             :   fd_chkdup_t chkdup[ 1 ];
     738             : 
     739             :   /* bundle_meta: an array, parallel to the pool, with each element
     740             :      having size bundle_meta_sz.  I.e. if pool[i] has an associated
     741             :      bundle meta, it's located at bundle_meta[j] for j in
     742             :      [i*bundle_meta_sz, (i+1)*bundle_meta_sz). */
     743             :   void * bundle_meta;
     744             : };
     745             : 
     746             : typedef struct fd_pack_private fd_pack_t;
     747             : 
     748             : FD_STATIC_ASSERT( offsetof(fd_pack_t, pending_txn_cnt)==FD_PACK_PENDING_TXN_CNT_OFF, txn_cnt_off );
     749             : 
     750             : /* Forward-declare some helper functions */
     751             : static ulong delete_transaction( fd_pack_t * pack, fd_pack_ord_txn_t * txn, int delete_full_bundle, int move_from_penalty_treap );
     752             : 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 );
     753             : 
     754             : FD_FN_PURE ulong
     755             : fd_pack_footprint( ulong                    pack_depth,
     756             :                    ulong                    bundle_meta_sz,
     757             :                    ulong                    bank_tile_cnt,
     758         285 :                    fd_pack_limits_t const * limits         ) {
     759         285 :   if( FD_UNLIKELY( (bank_tile_cnt==0) | (bank_tile_cnt>FD_PACK_MAX_EXECLE_TILES) ) ) return 0UL;
     760         285 :   if( FD_UNLIKELY( pack_depth<4UL ) ) return 0UL;
     761             : 
     762         285 :   int enable_bundles = !!bundle_meta_sz;
     763         285 :   ulong l;
     764         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 */
     765         285 :   ulong max_acct_in_treap  = pack_depth * FD_TXN_ACCT_ADDR_MAX;
     766         285 :   ulong max_txn_per_mblk   = fd_ulong_max( limits->max_txn_per_microblock,
     767         285 :                                            fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE, 0UL ) );
     768         285 :   ulong max_acct_in_flight = bank_tile_cnt * (FD_TXN_ACCT_ADDR_MAX * max_txn_per_mblk + 1UL);
     769         285 :   ulong max_txn_in_flight  = bank_tile_cnt * max_txn_per_mblk;
     770             : 
     771         285 :   ulong max_w_per_block    = fd_ulong_min( limits->max_cost_per_block / FD_PACK_COST_PER_WRITABLE_ACCT,
     772         285 :                                            max_txn_per_mblk * limits->max_microblocks_per_block * FD_TXN_ACCT_ADDR_MAX );
     773         285 :   ulong wcost_chain_cnt    = wcost_map_chain_cnt_est( max_w_per_block );
     774         285 :   ulong bundle_temp_accts  = fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE*FD_TXN_ACCT_ADDR_MAX, 1UL );
     775         285 :   ulong sig_chain_cnt      = sig2txn_chain_cnt_est( pack_depth );
     776         285 :   ulong nonce_chain_cnt    = noncemap_chain_cnt_est( pack_depth );
     777             : 
     778             :   /* log base 2, but with a 2* so that the hash table stays sparse */
     779         285 :   int lg_uses_tbl_sz = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_flight                        ) );
     780         285 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap                         ) );
     781         285 :   int lg_penalty_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap/PENALTY_TREAP_THRESHOLD ) );
     782         285 :   int lg_bundle_temp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*bundle_temp_accts                         ) );
     783             : 
     784         285 :   l = FD_LAYOUT_INIT;
     785         285 :   l = FD_LAYOUT_APPEND( l, FD_PACK_ALIGN,       sizeof(fd_pack_t)                               );
     786         285 :   l = FD_LAYOUT_APPEND( l, trp_pool_align (),   trp_pool_footprint ( pack_depth+extra_depth   ) ); /* pool           */
     787         285 :   l = FD_LAYOUT_APPEND( l, penalty_map_align(), penalty_map_footprint( lg_penalty_trp         ) ); /* penalty_treaps */
     788         285 :   l = FD_LAYOUT_APPEND( l, expq_align     (),   expq_footprint     ( pack_depth               ) ); /* expiration prq */
     789         285 :   l = FD_LAYOUT_APPEND( l, acct_uses_align(),   acct_uses_footprint( lg_uses_tbl_sz           ) ); /* acct_in_use    */
     790         285 :   l = FD_LAYOUT_APPEND( l, wcost_map_align(),   wcost_map_footprint( wcost_chain_cnt          ) ); /* writer_costs   */
     791         285 :   l = FD_LAYOUT_APPEND( l, wcost_pool_align(),  wcost_pool_footprint( max_w_per_block         ) ); /* writers        */
     792         285 :   l = FD_LAYOUT_APPEND( l, noncemap_align (),   noncemap_footprint ( nonce_chain_cnt          ) ); /* noncemap       */
     793         285 :   l = FD_LAYOUT_APPEND( l, sig2txn_align  (),   sig2txn_footprint  ( sig_chain_cnt            ) ); /* signature_map  */
     794         285 :   l = FD_LAYOUT_APPEND( l, acct_uses_align(),   acct_uses_footprint( lg_bundle_temp           ) ); /* bundle_temp_map*/
     795         285 :   l = FD_LAYOUT_APPEND( l, 32UL,                sizeof(fd_pack_addr_use_t)*max_acct_in_flight   ); /* use_by_bank    */
     796         285 :   l = FD_LAYOUT_APPEND( l, 32UL,                sizeof(ulong)*max_txn_in_flight                 ); /* use_by_bank_txn*/
     797         285 :   l = FD_LAYOUT_APPEND( l, bitset_map_align(),  bitset_map_footprint( lg_acct_in_trp          ) ); /* acct_to_bitset */
     798         285 :   l = FD_LAYOUT_APPEND( l, 64UL,                (pack_depth+extra_depth)*bundle_meta_sz         ); /* bundle_meta */
     799         285 :   return FD_LAYOUT_FINI( l, FD_PACK_ALIGN );
     800         285 : }
     801             : 
     802             : void *
     803             : fd_pack_new( void                   * mem,
     804             :              ulong                    pack_depth,
     805             :              ulong                    bundle_meta_sz,
     806             :              ulong                    bank_tile_cnt,
     807             :              fd_pack_limits_t const * limits,
     808             :              fd_acct_addr_t const *   acct_blocklist,
     809             :              ulong                    acct_blocklist_cnt,
     810         300 :              fd_rng_t               * rng           ) {
     811             : 
     812         300 :   int enable_bundles = !!bundle_meta_sz;
     813         300 :   ulong extra_depth        = fd_ulong_if( enable_bundles, 1UL+2UL*FD_PACK_MAX_TXN_PER_BUNDLE, 1UL );
     814         300 :   ulong max_acct_in_treap  = pack_depth * FD_TXN_ACCT_ADDR_MAX;
     815         300 :   ulong max_txn_per_mblk   = fd_ulong_max( limits->max_txn_per_microblock,
     816         300 :                                            fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE, 0UL ) );
     817         300 :   ulong max_acct_in_flight = bank_tile_cnt * (FD_TXN_ACCT_ADDR_MAX * max_txn_per_mblk + 1UL);
     818         300 :   ulong max_txn_in_flight  = bank_tile_cnt * max_txn_per_mblk;
     819             : 
     820         300 :   ulong max_w_per_block    = fd_ulong_min( limits->max_cost_per_block / FD_PACK_COST_PER_WRITABLE_ACCT,
     821         300 :                                            max_txn_per_mblk * limits->max_microblocks_per_block * FD_TXN_ACCT_ADDR_MAX );
     822         300 :   ulong wcost_chain_cnt    = wcost_map_chain_cnt_est( max_w_per_block );
     823         300 :   ulong bundle_temp_accts  = fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE*FD_TXN_ACCT_ADDR_MAX, 1UL );
     824         300 :   ulong sig_chain_cnt      = sig2txn_chain_cnt_est( pack_depth );
     825         300 :   ulong nonce_chain_cnt    = noncemap_chain_cnt_est( pack_depth );
     826             : 
     827             :   /* log base 2, but with a 2* so that the hash table stays sparse */
     828         300 :   int lg_uses_tbl_sz = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_flight                        ) );
     829         300 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap                         ) );
     830         300 :   int lg_penalty_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap/PENALTY_TREAP_THRESHOLD ) );
     831         300 :   int lg_bundle_temp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*bundle_temp_accts                         ) );
     832             : 
     833         300 :   FD_SCRATCH_ALLOC_INIT( l, mem );
     834         300 :   fd_pack_t * pack    = FD_SCRATCH_ALLOC_APPEND( l,  FD_PACK_ALIGN,       sizeof(fd_pack_t)                             );
     835             :   /* The pool has one extra element that is used between insert_init and
     836             :      cancel/fini. */
     837         300 :   void * _pool        = FD_SCRATCH_ALLOC_APPEND( l,  trp_pool_align(),    trp_pool_footprint ( pack_depth+extra_depth ) );
     838         300 :   void * _penalty_map = FD_SCRATCH_ALLOC_APPEND( l,  penalty_map_align(), penalty_map_footprint( lg_penalty_trp       ) );
     839         300 :   void * _expq        = FD_SCRATCH_ALLOC_APPEND( l,  expq_align(),        expq_footprint     ( pack_depth             ) );
     840         300 :   void * _uses        = FD_SCRATCH_ALLOC_APPEND( l,  acct_uses_align(),   acct_uses_footprint( lg_uses_tbl_sz         ) );
     841         300 :   void * _writer_cost = FD_SCRATCH_ALLOC_APPEND( l,  wcost_map_align(),   wcost_map_footprint( wcost_chain_cnt        ) );
     842         300 :   void * _written_lst = FD_SCRATCH_ALLOC_APPEND( l,  wcost_pool_align(),  wcost_pool_footprint( max_w_per_block       ) );
     843         300 :   void * _noncemap    = FD_SCRATCH_ALLOC_APPEND( l,  noncemap_align(),    noncemap_footprint ( nonce_chain_cnt        ) );
     844         300 :   void * _sig_map     = FD_SCRATCH_ALLOC_APPEND( l,  sig2txn_align(),     sig2txn_footprint  ( sig_chain_cnt          ) );
     845         300 :   void * _bundle_temp = FD_SCRATCH_ALLOC_APPEND( l,  acct_uses_align(),   acct_uses_footprint( lg_bundle_temp         ) );
     846         300 :   void * _use_by_bank = FD_SCRATCH_ALLOC_APPEND( l,  32UL,                sizeof(fd_pack_addr_use_t)*max_acct_in_flight );
     847         300 :   void * _use_by_txn  = FD_SCRATCH_ALLOC_APPEND( l,  32UL,                sizeof(ulong)*max_txn_in_flight               );
     848         300 :   void * _acct_bitset = FD_SCRATCH_ALLOC_APPEND( l,  bitset_map_align(),  bitset_map_footprint( lg_acct_in_trp        ) );
     849         300 :   void * bundle_meta  = FD_SCRATCH_ALLOC_APPEND( l,  64UL,                (pack_depth+extra_depth)*bundle_meta_sz       );
     850             : 
     851         300 :   pack->pack_depth                  = pack_depth;
     852         300 :   pack->bundle_meta_sz              = bundle_meta_sz;
     853         300 :   pack->bank_tile_cnt               = bank_tile_cnt;
     854         300 :   pack->lim[0]                      = *limits;
     855         300 :   pack->pending_txn_cnt             = 0UL;
     856         300 :   pack->microblock_cnt              = 0UL;
     857         300 :   pack->data_bytes_consumed         = 0UL;
     858         300 :   pack->alloc_consumed              = 0UL;
     859         300 :   memset( pack->sched_results, 0, sizeof(pack->sched_results) );
     860         300 :   pack->rng                         = rng;
     861         300 :   pack->cumulative_block_cost       = 0UL;
     862         300 :   pack->cumulative_vote_cost        = 0UL;
     863         300 :   pack->expire_before               = 0UL;
     864         300 :   pack->outstanding_microblock_mask = 0UL;
     865         300 :   pack->cumulative_rebated_cus      = 0UL;
     866             : 
     867         300 :   acct_blocklist_new( pack->acct_blocklist );
     868         300 :   int ins_failed = acct_blocklist_cnt>FD_PACK_ACCT_BLOCKLIST_MAX;
     869         366 :   for( ulong i=0UL; (!ins_failed) & (i<acct_blocklist_cnt); i++ ) {
     870          66 :     ins_failed |= acct_blocklist_key_inval( acct_blocklist[i] ) ||
     871          66 :                   (NULL==acct_blocklist_insert( pack->acct_blocklist, acct_blocklist[i] ));
     872          66 :   }
     873         300 :   if( FD_UNLIKELY( ins_failed ) ) {
     874           6 :     FD_LOG_WARNING(( "constructing the account blocklist failed.  Ensure the list contains no more than %lu "
     875           6 :                      "entries, and does not contain duplicates or the System Program (11...111)", FD_PACK_ACCT_BLOCKLIST_MAX ));
     876           6 :     return NULL;
     877           6 :   }
     878             : 
     879         294 :   trp_pool_new(  _pool,        pack_depth+extra_depth );
     880             : 
     881         294 :   fd_pack_ord_txn_t * pool = trp_pool_join( _pool );
     882         294 :   treap_seed( pool, pack_depth+extra_depth, fd_rng_ulong( rng ) );
     883      346152 :   for( ulong i=0UL; i<pack_depth+extra_depth; i++ ) pool[i].root = FD_ORD_TXN_ROOT_FREE;
     884             : 
     885         294 :   (void)trp_pool_leave( pool );
     886             : 
     887         294 :   penalty_map_new( _penalty_map, lg_penalty_trp, fd_rng_ulong( rng ) );
     888             : 
     889             :   /* These treaps can have at most pack_depth elements at any moment,
     890             :      but they come from a pool of size pack_depth+extra_depth. */
     891         294 :   treap_new( (void*)pack->pending,         pack_depth+extra_depth );
     892         294 :   treap_new( (void*)pack->pending_votes,   pack_depth+extra_depth );
     893         294 :   treap_new( (void*)pack->pending_bundles, pack_depth+extra_depth );
     894             : 
     895         294 :   pack->pending_smallest->cus         = ULONG_MAX;
     896         294 :   pack->pending_smallest->bytes       = ULONG_MAX;
     897         294 :   pack->pending_votes_smallest->cus   = ULONG_MAX;
     898         294 :   pack->pending_votes_smallest->bytes = ULONG_MAX;
     899             : 
     900         294 :   expq_new( _expq, pack_depth );
     901             : 
     902         294 :   FD_PACK_BITSET_CLEAR( pack->bitset_rw_in_use );
     903         294 :   FD_PACK_BITSET_CLEAR( pack->bitset_w_in_use  );
     904             : 
     905         294 :   acct_uses_new( _uses,        lg_uses_tbl_sz, fd_rng_ulong( rng ) );
     906         294 :   acct_uses_new( _bundle_temp, lg_bundle_temp, fd_rng_ulong( rng ) );
     907             : 
     908         294 :   wcost_map_new  ( _writer_cost, wcost_chain_cnt, fd_rng_ulong( rng ) );
     909         294 :   wcost_dlist_new( pack->written_list                                 );
     910         294 :   wcost_pool_new ( _written_lst, max_w_per_block                      );
     911             : 
     912         294 :   noncemap_new( _noncemap, nonce_chain_cnt, fd_rng_ulong( rng ) );
     913             : 
     914         294 :   sig2txn_new( _sig_map, sig_chain_cnt, fd_rng_ulong( rng ) );
     915             : 
     916         294 :   fd_pack_addr_use_t * use_by_bank     = (fd_pack_addr_use_t *)_use_by_bank;
     917         294 :   ulong *              use_by_bank_txn = (ulong *)_use_by_txn;
     918        6285 :   for( ulong i=0UL; i<bank_tile_cnt; i++ ) {
     919        5991 :     pack->use_by_bank    [i] = use_by_bank + i*(FD_TXN_ACCT_ADDR_MAX*max_txn_per_mblk+1UL);
     920        5991 :     pack->use_by_bank_cnt[i] = 0UL;
     921        5991 :     pack->use_by_bank_txn[i] = use_by_bank_txn + i*max_txn_per_mblk;
     922        5991 :     pack->use_by_bank_txn[i][0] = 0UL;
     923        5991 :   }
     924       12531 :   for( ulong i=bank_tile_cnt; i<FD_PACK_MAX_EXECLE_TILES; i++ ) {
     925       12237 :     pack->use_by_bank    [i] = NULL;
     926       12237 :     pack->use_by_bank_cnt[i] = 0UL;
     927       12237 :     pack->use_by_bank_txn[i] = NULL;
     928       12237 :   }
     929             : 
     930         294 :   fd_histf_new( pack->txn_per_microblock,  FD_MHIST_MIN( PACK, TXN_PER_MICROBLOCK ),
     931         294 :                                            FD_MHIST_MAX( PACK, TXN_PER_MICROBLOCK ) );
     932         294 :   fd_histf_new( pack->vote_per_microblock, FD_MHIST_MIN( PACK, VOTE_PER_MICROBLOCK ),
     933         294 :                                            FD_MHIST_MAX( PACK, VOTE_PER_MICROBLOCK ) );
     934             : 
     935         294 :   fd_histf_new( pack->scheduled_cus_per_block, FD_MHIST_MIN( PACK, CU_SCHEDULED_PER_BLOCK ),
     936         294 :                                                FD_MHIST_MAX( PACK, CU_SCHEDULED_PER_BLOCK ) );
     937         294 :   fd_histf_new( pack->rebated_cus_per_block,   FD_MHIST_MIN( PACK, CU_REBATED_PER_BLOCK   ),
     938         294 :                                                FD_MHIST_MAX( PACK, CU_REBATED_PER_BLOCK   ) );
     939         294 :   fd_histf_new( pack->net_cus_per_block,       FD_MHIST_MIN( PACK, CU_NET_PER_BLOCK       ),
     940         294 :                                                FD_MHIST_MAX( PACK, CU_NET_PER_BLOCK       ) );
     941         294 :   fd_histf_new( pack->pct_cus_per_block,       FD_MHIST_MIN( PACK, CU_PCT       ),
     942         294 :                                                FD_MHIST_MAX( PACK, CU_PCT       ) );
     943             : 
     944         294 :   pack->compressed_slot_number = (ushort)(FD_PACK_SKIP_CNT+1);
     945             : 
     946         294 :   pack->bitset_avail[ 0 ] = FD_PACK_BITSET_SLOWPATH;
     947      100646 :   for( ulong i=0UL; i<FD_PACK_BITSET_MAX; i++ ) pack->bitset_avail[ i+1UL ] = (ushort)i;
     948         294 :   pack->bitset_avail_cnt = FD_PACK_BITSET_MAX;
     949             : 
     950         294 :   bitset_map_new( _acct_bitset, lg_acct_in_trp, fd_rng_ulong( rng ) );
     951             : 
     952         294 :   fd_chkdup_new( pack->chkdup, rng );
     953             : 
     954         294 :   pack->bundle_meta = bundle_meta;
     955             : 
     956         294 :   return mem;
     957         300 : }
     958             : 
     959             : fd_pack_t *
     960         294 : fd_pack_join( void * mem ) {
     961         294 :   FD_SCRATCH_ALLOC_INIT( l, mem );
     962         294 :   fd_pack_t * pack  = FD_SCRATCH_ALLOC_APPEND( l, FD_PACK_ALIGN, sizeof(fd_pack_t) );
     963             : 
     964         294 :   int enable_bundles = !!pack->bundle_meta_sz;
     965         294 :   ulong pack_depth             = pack->pack_depth;
     966         294 :   ulong extra_depth            = fd_ulong_if( enable_bundles, 1UL+2UL*FD_PACK_MAX_TXN_PER_BUNDLE, 1UL );
     967         294 :   ulong bank_tile_cnt          = pack->bank_tile_cnt;
     968         294 :   ulong max_txn_per_microblock = fd_ulong_max( pack->lim->max_txn_per_microblock,
     969         294 :                                                fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE, 0UL ) );
     970             : 
     971         294 :   ulong max_acct_in_treap  = pack_depth * FD_TXN_ACCT_ADDR_MAX;
     972         294 :   ulong max_acct_in_flight = bank_tile_cnt * (FD_TXN_ACCT_ADDR_MAX * max_txn_per_microblock + 1UL);
     973         294 :   ulong max_txn_in_flight  = bank_tile_cnt * max_txn_per_microblock;
     974         294 :   ulong max_w_per_block    = fd_ulong_min( pack->lim->max_cost_per_block / FD_PACK_COST_PER_WRITABLE_ACCT,
     975         294 :                                            max_txn_per_microblock * pack->lim->max_microblocks_per_block * FD_TXN_ACCT_ADDR_MAX );
     976         294 :   ulong wcost_chain_cnt    = wcost_map_chain_cnt_est( max_w_per_block );
     977         294 :   ulong bundle_temp_accts  = fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE*FD_TXN_ACCT_ADDR_MAX, 1UL );
     978         294 :   ulong sig_chain_cnt      = sig2txn_chain_cnt_est( pack_depth );
     979         294 :   ulong nonce_chain_cnt    = noncemap_chain_cnt_est( pack_depth );
     980             : 
     981         294 :   int lg_uses_tbl_sz = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_flight                        ) );
     982         294 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap                         ) );
     983         294 :   int lg_penalty_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap/PENALTY_TREAP_THRESHOLD ) );
     984         294 :   int lg_bundle_temp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*bundle_temp_accts                         ) );
     985             : 
     986             : 
     987         294 :   pack->pool          = trp_pool_join(   FD_SCRATCH_ALLOC_APPEND( l, trp_pool_align(),   trp_pool_footprint   ( pack_depth+extra_depth  ) ) );
     988         294 :   pack->penalty_treaps= penalty_map_join(FD_SCRATCH_ALLOC_APPEND( l, penalty_map_align(),penalty_map_footprint( lg_penalty_trp          ) ) );
     989         294 :   pack->expiration_q  = expq_join    (   FD_SCRATCH_ALLOC_APPEND( l, expq_align(),       expq_footprint       ( pack_depth              ) ) );
     990         294 :   pack->acct_in_use   = acct_uses_join(  FD_SCRATCH_ALLOC_APPEND( l, acct_uses_align(),  acct_uses_footprint  ( lg_uses_tbl_sz          ) ) );
     991         294 :   pack->writer_costs  = wcost_map_join(  FD_SCRATCH_ALLOC_APPEND( l, wcost_map_align(),  wcost_map_footprint  ( wcost_chain_cnt         ) ) );
     992         294 :   pack->writers       = wcost_pool_join( FD_SCRATCH_ALLOC_APPEND( l, wcost_pool_align(), wcost_pool_footprint( max_w_per_block          ) ) );
     993         294 :   pack->noncemap      = noncemap_join(   FD_SCRATCH_ALLOC_APPEND( l, noncemap_align(),   noncemap_footprint   ( nonce_chain_cnt         ) ) );
     994         294 :   pack->signature_map = sig2txn_join(    FD_SCRATCH_ALLOC_APPEND( l, sig2txn_align(),    sig2txn_footprint    ( sig_chain_cnt           ) ) );
     995         294 :   pack->bundle_temp_map=acct_uses_join(  FD_SCRATCH_ALLOC_APPEND( l, acct_uses_align(),  acct_uses_footprint  ( lg_bundle_temp          ) ) );
     996         294 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 32UL,               sizeof(fd_pack_addr_use_t)*max_acct_in_flight      );
     997         294 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 32UL,               sizeof(ulong)*max_txn_in_flight                    );
     998         294 :   pack->acct_to_bitset= bitset_map_join( FD_SCRATCH_ALLOC_APPEND( l, bitset_map_align(), bitset_map_footprint( lg_acct_in_trp           ) ) );
     999         294 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 64UL,               (pack_depth+extra_depth)*pack->bundle_meta_sz      );
    1000             : 
    1001         294 :   wcost_dlist_join( pack->written_list );
    1002             : 
    1003         294 :   FD_MGAUGE_SET( PACK, TXN_PENDING_CAPACITY, pack->pack_depth );
    1004         294 :   memset( pack->top_writers, 0, sizeof(pack->top_writers) );
    1005             : 
    1006         294 :   return pack;
    1007         294 : }
    1008             : 
    1009             : 
    1010             : /* Returns 0 on failure, 1 on success for a vote, 2 on success for a
    1011             :    non-vote. */
    1012             : static int
    1013             : fd_pack_estimate_rewards_and_compute( fd_txn_e_t             * txne,
    1014             :                                       fd_pack_ord_txn_t      * out,
    1015       37314 :                                       fd_pack_limits_t const * lim ) {
    1016       37314 :   fd_txn_t * txn = TXN(txne->txnp);
    1017       37314 :   ulong sig_rewards = FD_PACK_FEE_PER_SIGNATURE * txn->signature_cnt; /* Easily in [5000, 635000] */
    1018             : 
    1019       37314 :   ulong requested_execution_cus;
    1020       37314 :   ulong priority_rewards;
    1021       37314 :   ulong precompile_sigs;
    1022       37314 :   ulong requested_loaded_accounts_data_cost;
    1023       37314 :   ulong allocated_data;
    1024       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 );
    1025             : 
    1026       37314 :   if( FD_UNLIKELY( !cost_estimate ) ) return 0;
    1027             : 
    1028             :   /* precompile_sigs <= 16320, so after the addition,
    1029             :      sig_rewards < 83,000,000 */
    1030       37311 :   sig_rewards += FD_PACK_FEE_PER_SIGNATURE * precompile_sigs;
    1031       37311 :   sig_rewards = sig_rewards * FD_PACK_TXN_FEE_BURN_PCT / 100UL;
    1032             : 
    1033             :   /* No fancy CU estimation in this version of pack
    1034             :   for( ulong i=0UL; i<(ulong)txn->instr_cnt; i++ ) {
    1035             :     uchar prog_id_idx = txn->instr[ i ].program_id;
    1036             :     fd_acct_addr_t const * acct_addr = fd_txn_get_acct_addrs( txn, txnp->payload ) + (ulong)prog_id_idx;
    1037             :   }
    1038             :   */
    1039       37311 :   out->rewards                              = (priority_rewards < (UINT_MAX - sig_rewards)) ? (uint)(sig_rewards + priority_rewards) : UINT_MAX;
    1040       37311 :   out->compute_est                          = (uint)cost_estimate;
    1041       37311 :   out->txn->pack_cu.requested_exec_plus_acct_data_cus = (uint)(requested_execution_cus + requested_loaded_accounts_data_cost);
    1042       37311 :   out->txn->pack_cu.non_execution_cus       = (uint)(cost_estimate - requested_execution_cus - requested_loaded_accounts_data_cost);
    1043       37311 :   out->txn->pack_alloc                      = (uint)allocated_data;
    1044             : 
    1045             :   /* If a transaction allocates a lot, we want to treat it as if it
    1046             :      requests more CUs.  However, we use compute_est in the block
    1047             :      limit calculations, so we can't touch it.  To have the same
    1048             :      effect, we decrease rewards.
    1049             :      divisor is 1 unless
    1050             :             allocated_data                       cost_estimate
    1051             :       ----------------------------    >=       ------------------
    1052             :       max_allocated_data_per_block             max_cost_per_block
    1053             : 
    1054             :      0       <=allocated_data      <=20 * 1024^2
    1055             :      30*10^6 <= max_cost_per_block < 2^32
    1056             :      1020    <= cost_estimate      < 1.6 * 10^6
    1057             :      50*10^6 <= max_allocated_data_per_block <= 100 * 1000^2
    1058             :                 (changes with the slot time duration)
    1059             :      So the numerator (<2^57) and denominator (<2^48) can't overflow.
    1060             :      Both cost_estimate and max_allocated_data_per_block non-zero,
    1061             :      so the denominator is never zero.
    1062             :      1 <= divisor <= 1 + (max_cost_per_block * .000206)
    1063             :      */
    1064       37311 :   ulong divisor = 1UL + (allocated_data * lim->max_cost_per_block) / (cost_estimate * lim->max_allocated_data_per_block);
    1065       37311 :   out->rewards /= (uint)divisor;
    1066             : 
    1067       37311 :   return fd_int_if( txne->txnp->flags & FD_TXN_P_FLAGS_IS_SIMPLE_VOTE, 1, 2 );
    1068       37314 : }
    1069             : 
    1070             : /* Returns 0 on failure, 1 if not a durable nonce transaction, and 2 if
    1071             :    it is.  FIXME: These return codes are set to harmonize with
    1072             :    estimate_rewards_and_compute but -1/0/1 makes a lot more sense to me.
    1073             :    */
    1074             : static int
    1075       37308 : fd_pack_validate_durable_nonce( fd_txn_e_t * txne ) {
    1076       37308 :   fd_txn_t const * txn = TXN(txne->txnp);
    1077             : 
    1078             :   /* First instruction invokes system program with 4 bytes of
    1079             :      instruction data with the little-endian value 4.  It also has 3
    1080             :      accounts: the nonce account, recent blockhashes sysvar, and the
    1081             :      nonce authority.  It seems like technically the nonce authority may
    1082             :      not need to be passed in, but we disallow that.  We also allow
    1083             :      trailing data and trailing accounts.  We want to organize the
    1084             :      checks somewhat to minimize cache misses. */
    1085       37308 :   if( FD_UNLIKELY( txn->instr_cnt==0            ) ) return 1;
    1086       37308 :   if( FD_UNLIKELY( txn->instr[ 0 ].data_sz<4UL  ) ) return 1;
    1087       37308 :   if( FD_UNLIKELY( txn->instr[ 0 ].acct_cnt<3UL ) ) return 1; /* It seems like technically 2 is allowed, but never used */
    1088        8034 :   if( FD_LIKELY  ( fd_uint_load_4( txne->txnp->payload + txn->instr[ 0 ].data_off )!=4U ) ) return 1;
    1089             :   /* The program has to be a static account */
    1090        1155 :   fd_acct_addr_t const * accts = fd_txn_get_acct_addrs( txn, txne->txnp->payload );
    1091        1155 :   if( FD_UNLIKELY( !fd_memeq( accts[ txn->instr[ 0 ].program_id ].b, null_addr.b, 32UL       ) ) ) return 1;
    1092        1155 :   if( FD_UNLIKELY( !fd_txn_is_signer( txn, txne->txnp->payload[ txn->instr[ 0 ].acct_off+2 ] ) ) ) return 0;
    1093             :   /* We could check recent blockhash, but it's not necessary */
    1094        1152 :   return 2;
    1095        1155 : }
    1096             : 
    1097             : /* Can the fee payer afford to pay a transaction with the specified
    1098             :    price?  Returns 1 if so, 0 otherwise.  This is just a stub that
    1099             :    always returns 1 for now, and the real check is deferred to the bank
    1100             :    tile.  In general, this function can't be totally accurate, because
    1101             :    the transactions immediately prior to this one can affect the balance
    1102             :    of this fee payer, but a simple check here may be helpful for
    1103             :    reducing spam. */
    1104             : static int
    1105             : fd_pack_can_fee_payer_afford( fd_acct_addr_t const * acct_addr,
    1106       37302 :                               ulong                  price /* in lamports */) {
    1107       37302 :   (void)acct_addr;
    1108       37302 :   (void)price;
    1109       37302 :   return 1;
    1110       37302 : }
    1111             : 
    1112             : 
    1113             : 
    1114             : 
    1115             : 
    1116       35730 : fd_txn_e_t * fd_pack_insert_txn_init(   fd_pack_t * pack                   ) { return trp_pool_ele_acquire( pack->pool )->txn_e; }
    1117           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 ); }
    1118             : 
    1119          24 : #define REJECT( reason ) do {                                       \
    1120          24 :                            trp_pool_ele_release( pack->pool, ord ); \
    1121          24 :                            return FD_PACK_INSERT_REJECT_ ## reason; \
    1122          24 :                          } while( 0 )
    1123             : 
    1124             : /* These require txn, accts, and alt_adj to be defined as per usual */
    1125       30067 : #define ACCT_IDX_TO_PTR( idx ) (__extension__( {                                               \
    1126       30067 :       ulong __idx = (ulong)(idx);                                                              \
    1127       30067 :       fd_ptr_if( __idx<fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM ), accts, alt_adj )+__idx; \
    1128       30067 :       }))
    1129     1367178 : #define ACCT_ITER_TO_PTR( iter ) (__extension__( {                                             \
    1130     1367178 :       ulong __idx = fd_txn_acct_iter_idx( iter );                                              \
    1131     1367178 :       fd_ptr_if( __idx<fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM ), accts, alt_adj )+__idx; \
    1132     1367178 :       }))
    1133             : 
    1134             : 
    1135             : /* Tries to find the worst transaction in any treap in pack.  If that
    1136             :    transaction's score is worse than or equal to threshold_score, it
    1137             :    initiates a delete and returns the number of deleted transactions
    1138             :    (potentially more than 1 for a bundle).  If it's higher than
    1139             :    threshold_score, it returns 0.  To force this function to delete the
    1140             :    worst transaction if there are any eligible ones, pass FLT_MAX as
    1141             :    threshold_score. */
    1142             : static inline ulong
    1143             : delete_worst( fd_pack_t * pack,
    1144             :               float       threshold_score,
    1145        3081 :               int         is_vote ) {
    1146             :   /* If the tree is full, we want to see if this is better than the
    1147             :      worst element in the pool before inserting.  If the new transaction
    1148             :      is better than that one, we'll delete it and insert the new
    1149             :      transaction. Otherwise, we'll throw away this transaction.
    1150             : 
    1151             :      We want to bias the definition of "worst" here to provide better
    1152             :      quality of service.  For example, if the pool is filled with
    1153             :      transactions that all write to the same account or are all votes,
    1154             :      we want to bias towards treating one of those transactions as the
    1155             :      worst, even if they pay slightly higher fees per computer unit,
    1156             :      since we know we won't actually be able to schedule them all.
    1157             : 
    1158             :      This is a tricky task, however.  All our notions of priority and
    1159             :      better/worse are based on static information about the transaction,
    1160             :      and there's not an easy way to take into account global
    1161             :      information, for example, how many other transactions contend with
    1162             :      this one.  One idea is to build a heap (not a treap, since we only
    1163             :      need pop-min, insert, and delete) with one element for each element
    1164             :      in the pool, with a "delete me" score that's related but not
    1165             :      identical to the normal score.  This would allow building in some
    1166             :      global information.  The downside is that the global information
    1167             :      that gets integrated is static.  E.g. if you bias a transaction's
    1168             :      "delete me" score to make it more likely to be deleted because
    1169             :      there are many conflicting transactions in the pool, the score
    1170             :      stays biased, even if the global conditions change (unless you come
    1171             :      up with some complicated re-scoring scheme).  This can work, since
    1172             :      when the pool is full, the global bias factors are unlikely to
    1173             :      change significantly at the relevant timescales.
    1174             : 
    1175             :      However, rather than this, we implement a simpler probabilistic
    1176             :      scheme.  We'll sample M transactions, find the worst transaction in
    1177             :      each of the M treaps, compute a "delete me" score for those <= M
    1178             :      transactions, and delete the worst.  If one penalty treap is
    1179             :      starting to get big, then it becomes very likely that the random
    1180             :      sample will find it and choose to delete a transaction from it.
    1181             : 
    1182             :      The exact formula for the "delete me" score should be the matter of
    1183             :      some more intense quantitative research.  For now, we'll just use
    1184             :      this:
    1185             : 
    1186             :      Treap with N transactions        Scale Factor
    1187             :      Pending                      1.0 unless inserting a vote and votes < 25%
    1188             :      Pending votes                1.0 until 75% of depth, then 0
    1189             :      Penalty treap                1.0 at <= 100 transactions, then sqrt(100/N)
    1190             :      Pending bundles              inf (since the rewards value is fudged)
    1191             : 
    1192             :      We'll also use M=8. */
    1193             : 
    1194        3081 :   float worst_score = FLT_MAX;
    1195        3081 :   fd_pack_ord_txn_t * worst = NULL;
    1196       27729 :   for( ulong i=0UL; i<8UL; i++ ) {
    1197       24648 :     uint  pool_max = (uint)trp_pool_max( pack->pool );
    1198       24648 :     ulong sample_i = fd_rng_uint_roll( pack->rng, pool_max );
    1199             : 
    1200       24648 :     fd_pack_ord_txn_t * sample = &pack->pool[ sample_i ];
    1201             :     /* Presumably if we're calling this, the pool is almost entirely
    1202             :        full, so the probability of choosing a free one is small.  If
    1203             :        it does happen, find the first one that isn't free. */
    1204       26089 :     while( FD_UNLIKELY( sample->root==FD_ORD_TXN_ROOT_FREE ) ) sample = &pack->pool[ (++sample_i)%pool_max ];
    1205             : 
    1206       24648 :     int       root_idx   = sample->root;
    1207       24648 :     float     multiplier = 0.0f; /* The smaller this is, the more biased we'll be to deleting it */
    1208       24648 :     treap_t * treap;
    1209       24648 :     switch( root_idx & FD_ORD_TXN_ROOT_TAG_MASK ) {
    1210           0 :       default:
    1211           0 :       case FD_ORD_TXN_ROOT_FREE: {
    1212           0 :         FD_LOG_CRIT(( "Double free detected" ));
    1213           0 :         return ULONG_MAX; /* Can't be hit */
    1214           0 :       }
    1215        3392 :       case FD_ORD_TXN_ROOT_PENDING: {
    1216        3392 :         treap = pack->pending;
    1217        3392 :         ulong vote_cnt = treap_ele_cnt( pack->pending_votes );
    1218        3392 :         if( FD_LIKELY( !is_vote || (vote_cnt>=pack->pack_depth/4UL ) ) ) multiplier = 1.0f;
    1219        3392 :         break;
    1220           0 :       }
    1221           0 :       case FD_ORD_TXN_ROOT_PENDING_VOTE: {
    1222           0 :         treap = pack->pending_votes;
    1223           0 :         ulong vote_cnt = treap_ele_cnt( pack->pending_votes );
    1224           0 :         if( FD_LIKELY( is_vote || (vote_cnt<=3UL*pack->pack_depth/4UL ) ) ) multiplier = 1.0f;
    1225           0 :         break;
    1226           0 :       }
    1227           0 :       case FD_ORD_TXN_ROOT_PENDING_BUNDLE: {
    1228             :         /* We don't have a way to tell how much these actually pay in
    1229             :            rewards, so we just assume they are very high. */
    1230           0 :         treap = pack->pending_bundles;
    1231             :         /* We cap rewards at UINT_MAX lamports for estimation, and min
    1232             :            CUs is about 1000, which means rewards/compute < 5e6.
    1233             :            FLT_MAX is around 3e38. That means, 1e20*rewards/compute is
    1234             :            much less than FLT_MAX, so we won't have any issues with
    1235             :            overflow.  On the other hand, if rewards==1 lamport and
    1236             :            compute is 2 million CUs, 1e20*1/2e6 is still higher than any
    1237             :            normal transaction. */
    1238           0 :         multiplier = 1e20f;
    1239           0 :         break;
    1240           0 :       }
    1241       21256 :       case FD_ORD_TXN_ROOT_PENALTY( 0 ): {
    1242       21256 :         fd_txn_t * txn = TXN( sample->txn );
    1243       21256 :         fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, sample->txn->payload );
    1244       21256 :         fd_acct_addr_t const * alt_adj = sample->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1245       21256 :         fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( root_idx ) );
    1246       21256 :         fd_pack_penalty_treap_t * q = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    1247       21256 :         FD_TEST( q );
    1248       21256 :         ulong cnt = treap_ele_cnt( q->penalty_treap );
    1249       21256 :         treap = q->penalty_treap;
    1250             : 
    1251       21256 :         multiplier = sqrtf( 100.0f / (float)fd_ulong_max( 100UL, cnt ) );
    1252       21256 :         break;
    1253       21256 :       }
    1254       24648 :     }
    1255             :     /* Get the worst from the sampled treap */
    1256       24648 :     treap_fwd_iter_t _cur=treap_fwd_iter_init( treap, pack->pool );
    1257       24648 :     FD_TEST( !treap_fwd_iter_done( _cur ) ); /* It can't be empty because we just sampled an element from it. */
    1258       24648 :     sample = treap_fwd_iter_ele( _cur, pack->pool );
    1259             : 
    1260       24648 :     float score = multiplier * (float)sample->rewards / (float)sample->compute_est;
    1261       24648 :     worst = fd_ptr_if( score<worst_score, sample, worst );
    1262       24648 :     worst_score = fd_float_if( worst_score<score, worst_score, score );
    1263       24648 :   }
    1264             : 
    1265        3081 :   if( FD_UNLIKELY( !worst                      ) ) return 0;
    1266        3081 :   if( FD_UNLIKELY( threshold_score<worst_score ) ) return 0;
    1267             : 
    1268        3081 :   return delete_transaction( pack, worst, 1, 1 );
    1269        3081 : }
    1270             : 
    1271             : static inline int
    1272             : validate_transaction( fd_pack_t               * pack,
    1273             :                       fd_pack_ord_txn_t const * ord,
    1274             :                       fd_txn_t          const * txn,
    1275             :                       fd_acct_addr_t    const * accts,
    1276             :                       fd_acct_addr_t    const * alt_adj,
    1277       37302 :                       int                       check_bundle_blacklist ) {
    1278       37302 :   int writes_to_sysvar = 0;
    1279       37302 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    1280      127719 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1281       90417 :     writes_to_sysvar |= fd_pack_unwritable_contains( ACCT_ITER_TO_PTR( iter ) );
    1282       90417 :   }
    1283             : 
    1284       37302 :   int bundle_blacklist = 0;
    1285       37302 :   int acct_blocklist   = 0;
    1286       37302 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_ALL );
    1287      264450 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1288      227148 :     bundle_blacklist |= (3==fd_pack_tip_prog_check_blacklist( ACCT_ITER_TO_PTR( iter ) ));
    1289             :     /* querying for the inval key is a violation of the fd_map
    1290             :        contract, even though it's actually fine... */
    1291      227148 :     acct_blocklist   |= (!acct_blocklist_key_inval( *ACCT_ITER_TO_PTR( iter ) )) &&
    1292      227148 :                         !!acct_blocklist_query( pack->acct_blocklist, *ACCT_ITER_TO_PTR( iter ), NULL );
    1293      227148 :   }
    1294             : 
    1295       37302 :   fd_acct_addr_t const * alt     = ord->txn_e->alt_accts;
    1296       37302 :   fd_chkdup_t * chkdup = pack->chkdup;
    1297       37302 :   ulong imm_cnt = fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1298       37302 :   ulong alt_cnt = fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_ALT );
    1299             : 
    1300             :   /* Throw out transactions ... */
    1301             :   /*           ... that are unfunded */
    1302       37302 :   if( FD_UNLIKELY( !fd_pack_can_fee_payer_afford( accts, ord->rewards    ) ) ) return FD_PACK_INSERT_REJECT_UNAFFORDABLE;
    1303             :   /*           ... that are so big they'll never run */
    1304       37302 :   if( FD_UNLIKELY( ord->compute_est >= pack->lim->max_cost_per_block       ) ) return FD_PACK_INSERT_REJECT_TOO_LARGE;
    1305             :   /*           ... that load too many accounts (ignoring 9LZdXeKGeBV6hRLdxS1rHbHoEUsKqesCC2ZAPTPKJAbK) */
    1306       37302 :   if( FD_UNLIKELY( fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_ALL )>64UL     ) ) return FD_PACK_INSERT_REJECT_ACCOUNT_CNT;
    1307             :   /*           ... that duplicate an account address */
    1308       37299 :   if( FD_UNLIKELY( fd_chkdup_check( chkdup, accts, imm_cnt, alt, alt_cnt ) ) ) return FD_PACK_INSERT_REJECT_DUPLICATE_ACCT;
    1309             :   /*           ... that try to write to a sysvar */
    1310       37296 :   if( FD_UNLIKELY( writes_to_sysvar                                        ) ) return FD_PACK_INSERT_REJECT_WRITES_SYSVAR;
    1311             :   /*           ... that use an account that violates bundle rules */
    1312       37203 :   if( FD_UNLIKELY( bundle_blacklist & !!check_bundle_blacklist             ) ) return FD_PACK_INSERT_REJECT_BUNDLE_BLACKLIST;
    1313             :   /*           ... that use a blocklisted account */
    1314       37203 :   if( FD_UNLIKELY( acct_blocklist                                          ) ) return FD_PACK_INSERT_REJECT_ACCT_BLOCKLIST;
    1315             : 
    1316       37188 :   return 0;
    1317       37203 : }
    1318             : 
    1319             : 
    1320             : 
    1321             : /* returns cumulative penalty "points", i.e. the sum of the populated
    1322             :    section of penalties (which also tells the caller how much of the
    1323             :    array is populated. */
    1324             : static inline ulong
    1325             : populate_bitsets( fd_pack_t         * pack,
    1326             :                   fd_pack_ord_txn_t * ord,
    1327             :                   ushort              penalties  [ static FD_TXN_ACCT_ADDR_MAX ],
    1328       36138 :                   uchar               penalty_idx[ static FD_TXN_ACCT_ADDR_MAX ] ) {
    1329       36138 :   FD_PACK_BITSET_CLEAR( ord->rw_bitset );
    1330       36138 :   FD_PACK_BITSET_CLEAR( ord->w_bitset  );
    1331             : 
    1332       36138 :   fd_txn_t * txn   = TXN(ord->txn);
    1333       36138 :   uchar * payload  = ord->txn->payload;
    1334             : 
    1335       36138 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, payload );
    1336             :   /* alt_adj is the pointer to the ALT expansion, adjusted so that if
    1337             :      account address n is the first that comes from the ALT, it can be
    1338             :      accessed with adj_lut[n]. */
    1339       36138 :   fd_acct_addr_t const * alt_adj = ord->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1340             : 
    1341       36138 :   ulong  cumulative_penalty = 0UL;
    1342       36138 :   ulong  penalty_i          = 0UL;
    1343             : 
    1344       36138 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    1345      121872 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1346       85734 :     fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    1347       85734 :     fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, acct, NULL );
    1348       85734 :     if( FD_UNLIKELY( q==NULL ) ) {
    1349       61522 :       q = bitset_map_insert( pack->acct_to_bitset, acct );
    1350       61522 :       q->ref_cnt                  = 0UL;
    1351       61522 :       q->first_instance           = ord;
    1352       61522 :       q->first_instance_was_write = 1;
    1353       61522 :       q->bit                      = FD_PACK_BITSET_FIRST_INSTANCE;
    1354       61522 :     } else if( FD_UNLIKELY( q->bit == FD_PACK_BITSET_FIRST_INSTANCE ) ) {
    1355        1844 :       q->bit = pack->bitset_avail[ pack->bitset_avail_cnt ];
    1356        1844 :       pack->bitset_avail_cnt = fd_ulong_if( !!pack->bitset_avail_cnt, pack->bitset_avail_cnt-1UL, 0UL );
    1357             : 
    1358        1844 :       FD_PACK_BITSET_SETN( q->first_instance->rw_bitset, q->bit );
    1359        1844 :       if( q->first_instance_was_write ) FD_PACK_BITSET_SETN( q->first_instance->w_bitset, q->bit );
    1360        1844 :     }
    1361       85734 :     ulong penalty = fd_ulong_max( q->ref_cnt, PENALTY_TREAP_THRESHOLD )-PENALTY_TREAP_THRESHOLD;
    1362       85734 :     if( FD_UNLIKELY( penalty ) ) {
    1363       17667 :       penalties  [ penalty_i ] = (ushort)penalty;
    1364       17667 :       penalty_idx[ penalty_i ] = (uchar )fd_txn_acct_iter_idx( iter );
    1365       17667 :       penalty_i++;
    1366       17667 :       cumulative_penalty += penalty;
    1367       17667 :     }
    1368             : 
    1369       85734 :     q->ref_cnt++;
    1370       85734 :     FD_PACK_BITSET_SETN( ord->rw_bitset, q->bit );
    1371       85734 :     FD_PACK_BITSET_SETN( ord->w_bitset , q->bit );
    1372       85734 :   }
    1373             : 
    1374       36138 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    1375      166977 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1376             : 
    1377      130839 :     fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    1378      130839 :     if( FD_UNLIKELY( fd_pack_unwritable_contains( &acct ) ) ) continue;
    1379             : 
    1380       79935 :     fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, acct, NULL );
    1381       79935 :     if( FD_UNLIKELY( q==NULL ) ) {
    1382       22341 :       q = bitset_map_insert( pack->acct_to_bitset, acct );
    1383       22341 :       q->ref_cnt                  = 0UL;
    1384       22341 :       q->first_instance           = ord;
    1385       22341 :       q->first_instance_was_write = 0;
    1386       22341 :       q->bit                      = FD_PACK_BITSET_FIRST_INSTANCE;
    1387       57594 :     } else if( FD_UNLIKELY( q->bit == FD_PACK_BITSET_FIRST_INSTANCE ) ) {
    1388        3603 :       q->bit = pack->bitset_avail[ pack->bitset_avail_cnt ];
    1389        3603 :       pack->bitset_avail_cnt = fd_ulong_if( !!pack->bitset_avail_cnt, pack->bitset_avail_cnt-1UL, 0UL );
    1390             : 
    1391        3603 :       FD_PACK_BITSET_SETN( q->first_instance->rw_bitset, q->bit );
    1392        3603 :       if( q->first_instance_was_write ) FD_PACK_BITSET_SETN( q->first_instance->w_bitset, q->bit );
    1393        3603 :     }
    1394             : 
    1395       79935 :     q->ref_cnt++;
    1396       79935 :     FD_PACK_BITSET_SETN( ord->rw_bitset, q->bit );
    1397       79935 :   }
    1398       36138 :   return cumulative_penalty;
    1399       36138 : }
    1400             : 
    1401             : int
    1402             : fd_pack_insert_txn_fini( fd_pack_t  * pack,
    1403             :                          fd_txn_e_t * txne,
    1404             :                          ulong        expires_at,
    1405       35730 :                          ulong      * delete_cnt ) {
    1406       35730 :   *delete_cnt = 0UL;
    1407             : 
    1408       35730 :   fd_pack_ord_txn_t * ord = (fd_pack_ord_txn_t *)txne;
    1409             : 
    1410       35730 :   fd_txn_t * txn   = TXN(txne->txnp);
    1411       35730 :   uchar * payload  = txne->txnp->payload;
    1412             : 
    1413       35730 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, payload );
    1414             :   /* alt_adj is the pointer to the ALT expansion, adjusted so that if
    1415             :      account address n is the first that comes from the ALT, it can be
    1416             :      accessed with adj_lut[n]. */
    1417       35730 :   fd_acct_addr_t const * alt_adj = ord->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1418             : 
    1419       35730 :   ord->expires_at = expires_at;
    1420             : 
    1421       35730 :   int est_result = fd_pack_estimate_rewards_and_compute( txne, ord, pack->lim );
    1422       35730 :   if( FD_UNLIKELY( !est_result ) ) REJECT( ESTIMATION_FAIL );
    1423       35727 :   int is_vote          = est_result==1;
    1424             : 
    1425       35727 :   int nonce_result = fd_pack_validate_durable_nonce( txne );
    1426       35727 :   if( FD_UNLIKELY( !nonce_result ) ) REJECT( INVALID_NONCE );
    1427       35724 :   int is_durable_nonce = nonce_result==2;
    1428       35724 :   ord->txn->flags &= ~FD_TXN_P_FLAGS_DURABLE_NONCE;
    1429       35724 :   ord->txn->flags |= fd_uint_if( is_durable_nonce, FD_TXN_P_FLAGS_DURABLE_NONCE, 0U );
    1430             : 
    1431       35724 :   int validation_result = validate_transaction( pack, ord, txn, accts, alt_adj, !!pack->bundle_meta_sz );
    1432       35724 :   if( FD_UNLIKELY( validation_result ) ) {
    1433         114 :     trp_pool_ele_release( pack->pool, ord );
    1434         114 :     return validation_result;
    1435         114 :   }
    1436             : 
    1437             :   /* Reject any transactions that have already expired */
    1438       35610 :   if( FD_UNLIKELY( expires_at<pack->expire_before                          ) ) REJECT( EXPIRED          );
    1439             : 
    1440       35598 :   int replaces = 0;
    1441             :   /* If it's a durable nonce and we already have one, delete one or the
    1442             :      other. */
    1443       35598 :   if( FD_UNLIKELY( is_durable_nonce ) ) {
    1444         120 :     fd_pack_ord_txn_t * same_nonce = noncemap_ele_query( pack->noncemap, txne, NULL, pack->pool );
    1445         120 :     if( FD_LIKELY( same_nonce ) ) { /* Seems like most nonce transactions are effectively duplicates */
    1446           9 :       if( FD_LIKELY( same_nonce->root == FD_ORD_TXN_ROOT_PENDING_BUNDLE || COMPARE_WORSE( ord, same_nonce ) ) ) REJECT( NONCE_PRIORITY );
    1447           3 :       ulong _delete_cnt = delete_transaction( pack, same_nonce, 0, 0 ); /* Not a bundle, so delete_full_bundle is 0 */
    1448           3 :       *delete_cnt += _delete_cnt;
    1449           3 :       replaces = 1;
    1450           3 :     }
    1451         120 :   }
    1452             : 
    1453       35592 :   if( FD_UNLIKELY( pack->pending_txn_cnt == pack->pack_depth ) ) {
    1454        3072 :     float threshold_score = (float)ord->rewards/(float)ord->compute_est;
    1455        3072 :     ulong _delete_cnt = delete_worst( pack, threshold_score, is_vote );
    1456        3072 :     *delete_cnt += _delete_cnt;
    1457        3072 :     if( FD_UNLIKELY( !_delete_cnt ) ) REJECT( PRIORITY );
    1458        3072 :     replaces = 1;
    1459        3072 :   }
    1460             : 
    1461       35592 :   ord->txn->flags &= ~(FD_TXN_P_FLAGS_BUNDLE | FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    1462       35592 :   ord->skip = FD_PACK_SKIP_CNT;
    1463             : 
    1464             :   /* At this point, we know we have space to insert the transaction and
    1465             :      we've committed to insert it. */
    1466             : 
    1467             :   /* Since the pool uses ushorts, the size of the pool is < USHORT_MAX.
    1468             :      Each transaction can reference an account at most once, which means
    1469             :      that the total number of references for an account is < USHORT_MAX.
    1470             :      If these were ulongs, the array would be 512B, which is kind of a
    1471             :      lot to zero out.*/
    1472       35592 :   ushort penalties[ FD_TXN_ACCT_ADDR_MAX ] = {0};
    1473       35592 :   uchar  penalty_idx[ FD_TXN_ACCT_ADDR_MAX ];
    1474       35592 :   ulong cumulative_penalty = populate_bitsets( pack, ord, penalties, penalty_idx );
    1475             : 
    1476       35592 :   treap_t * insert_into = pack->pending;
    1477             : 
    1478       35592 :   if( FD_UNLIKELY( cumulative_penalty && !is_vote ) ) { /* Optimize for high parallelism case */
    1479             :     /* Compute a weighted random choice */
    1480        6159 :     ulong roll = (ulong)fd_rng_uint_roll( pack->rng, (uint)cumulative_penalty ); /* cumulative_penalty < USHORT_MAX*64 < UINT_MAX */
    1481        6159 :     ulong i = 0UL;
    1482             :     /* Find the right one.  This can be done in O(log N), but I imagine
    1483             :        N is normally so small that doesn't matter. */
    1484       11941 :     while( roll>=penalties[i] ) roll -= (ulong)penalties[i++];
    1485             : 
    1486        6159 :     fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( penalty_idx[i] );
    1487        6159 :     fd_pack_penalty_treap_t * q = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    1488        6159 :     if( FD_UNLIKELY( q==NULL ) ) {
    1489          21 :       q = penalty_map_insert( pack->penalty_treaps, penalty_acct );
    1490          21 :       treap_new( q->penalty_treap, pack->pack_depth );
    1491          21 :     }
    1492        6159 :     insert_into = q->penalty_treap;
    1493        6159 :     ord->root = FD_ORD_TXN_ROOT_PENALTY( penalty_idx[i] );
    1494       29433 :   } else {
    1495       29433 :     ord->root = fd_int_if( is_vote, FD_ORD_TXN_ROOT_PENDING_VOTE, FD_ORD_TXN_ROOT_PENDING );
    1496             : 
    1497       29433 :     fd_pack_smallest_t * smallest = fd_ptr_if( is_vote, &pack->pending_votes_smallest[0], pack->pending_smallest );
    1498       29433 :     smallest->cus   = fd_ulong_min( smallest->cus,   ord->compute_est       );
    1499       29433 :     smallest->bytes = fd_ulong_min( smallest->bytes, txne->txnp->payload_sz );
    1500       29433 :   }
    1501             : 
    1502       35592 :   pack->pending_txn_cnt++;
    1503             : 
    1504       35592 :   sig2txn_ele_insert( pack->signature_map, ord, pack->pool );
    1505             : 
    1506       35592 :   if( FD_UNLIKELY( is_durable_nonce ) ) noncemap_ele_insert( pack->noncemap, ord, pack->pool );
    1507             : 
    1508       35592 :   fd_pack_expq_t temp[ 1 ] = {{ .expires_at = expires_at, .txn = ord }};
    1509       35592 :   expq_insert( pack->expiration_q, temp );
    1510             : 
    1511       35592 :   if( FD_LIKELY( is_vote ) ) insert_into = pack->pending_votes;
    1512             : 
    1513       35592 :   treap_ele_insert( insert_into, ord, pack->pool );
    1514       35592 :   return (is_vote) | (replaces<<1) | (is_durable_nonce<<2);
    1515       35592 : }
    1516             : #undef REJECT
    1517             : 
    1518             : fd_txn_e_t * const *
    1519             : fd_pack_insert_bundle_init( fd_pack_t          * pack,
    1520             :                             fd_txn_e_t *       * bundle,
    1521         381 :                             ulong                txn_cnt ) {
    1522         381 :   FD_TEST( txn_cnt<=FD_PACK_MAX_TXN_PER_BUNDLE  );
    1523         381 :   FD_TEST( trp_pool_free( pack->pool )>=txn_cnt );
    1524        1968 :   for( ulong i=0UL; i<txn_cnt; i++ ) bundle[ i ] = trp_pool_ele_acquire( pack->pool )->txn_e;
    1525         381 :   return bundle;
    1526         381 : }
    1527             : 
    1528             : void
    1529             : fd_pack_insert_bundle_cancel( fd_pack_t          * pack,
    1530             :                               fd_txn_e_t * const * bundle,
    1531         249 :                               ulong                txn_cnt ) {
    1532             :   /* There's no real reason these have to be released in reverse, but it
    1533             :      seems fitting to release them in the opposite order they were
    1534             :      acquired. */
    1535        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 ] );
    1536         249 : }
    1537             : 
    1538             : /* Explained below */
    1539             : #define BUNDLE_L_PRIME 37896771UL
    1540             : #define BUNDLE_N       313721UL
    1541         147 : #define RC_TO_REL_BUNDLE_IDX( r, c ) (BUNDLE_N - ((ulong)(r) * 1UL<<32)/((ulong)(c) * BUNDLE_L_PRIME))
    1542             : 
    1543             : int
    1544             : fd_pack_insert_bundle_fini( fd_pack_t          * pack,
    1545             :                             fd_txn_e_t * const * bundle,
    1546             :                             ulong                txn_cnt,
    1547             :                             ulong                expires_at,
    1548             :                             int                  initializer_bundle,
    1549             :                             void         const * bundle_meta,
    1550         381 :                             ulong              * delete_cnt ) {
    1551             : 
    1552         381 :   int err = 0;
    1553         381 :   *delete_cnt = 0UL;
    1554             : 
    1555         381 :   ulong pending_b_txn_cnt = treap_ele_cnt( pack->pending_bundles );
    1556             :     /* We want to prevent bundles from consuming the whole treap, but in
    1557             :        general, we assume bundles are lucrative.  We'll set the policy
    1558             :        on capping bundles at half of the pack depth.  We assume that the
    1559             :        bundles are coming in a pre-prioritized order, so it doesn't make
    1560             :        sense to drop an earlier bundle for this one.  That means that
    1561             :        really, the best thing to do is drop this one. */
    1562         381 :   if( FD_UNLIKELY( (!initializer_bundle)&(pending_b_txn_cnt+txn_cnt>pack->pack_depth/2UL) ) ) err = FD_PACK_INSERT_REJECT_PRIORITY;
    1563             : 
    1564         381 :   if( FD_UNLIKELY( expires_at<pack->expire_before                                         ) ) err = FD_PACK_INSERT_REJECT_EXPIRED;
    1565             : 
    1566             : 
    1567         381 :   int   replaces      = 0;
    1568         381 :   ulong nonce_txn_cnt = 0UL;
    1569             : 
    1570             :   /* Collect nonce hashes to detect duplicate nonces.
    1571             :      Use a constant-time duplicate-detection algorithm -- Vacant entries
    1572             :      have the MSB set, occupied entries are the noncemap hash, with the
    1573             :      MSB set to 0. */
    1574         381 :   ulong nonce_hash63[ FD_PACK_MAX_TXN_PER_BUNDLE ];
    1575        2286 :   for( ulong i=0UL; i<FD_PACK_MAX_TXN_PER_BUNDLE; i++ ) {
    1576        1905 :     nonce_hash63[ i ] = ULONG_MAX-i;
    1577        1905 :   }
    1578             : 
    1579        1959 :   for( ulong i=0UL; (i<txn_cnt) && !err; i++ ) {
    1580        1584 :     fd_pack_ord_txn_t * ord = (fd_pack_ord_txn_t *)bundle[ i ];
    1581             : 
    1582        1584 :     fd_txn_t const * txn     = TXN(bundle[ i ]->txnp);
    1583        1584 :     uchar    const * payload = bundle[ i ]->txnp->payload;
    1584             : 
    1585        1584 :     fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, payload );
    1586        1584 :     fd_acct_addr_t const * alt_adj = ord->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1587             : 
    1588        1584 :     int est_result = fd_pack_estimate_rewards_and_compute( bundle[ i ], ord, pack->lim );
    1589        1584 :     if( FD_UNLIKELY( est_result==0 ) ) { err = FD_PACK_INSERT_REJECT_ESTIMATION_FAIL;  break; }
    1590             :     /* Votes not allowed in bundles */
    1591        1584 :     if( FD_UNLIKELY( est_result==1 ) ) { err = FD_PACK_INSERT_REJECT_BUNDLE_BLACKLIST; break; }
    1592        1581 :     int nonce_result = fd_pack_validate_durable_nonce( ord->txn_e );
    1593        1581 :     if( FD_UNLIKELY( !nonce_result ) ) { err = FD_PACK_INSERT_REJECT_INVALID_NONCE;    break; }
    1594        1581 :     int is_durable_nonce = nonce_result==2;
    1595        1581 :     nonce_txn_cnt += !!is_durable_nonce;
    1596             : 
    1597        1581 :     bundle[ i ]->txnp->flags |= FD_TXN_P_FLAGS_BUNDLE;
    1598        1581 :     bundle[ i ]->txnp->flags &= ~(FD_TXN_P_FLAGS_INITIALIZER_BUNDLE | FD_TXN_P_FLAGS_DURABLE_NONCE);
    1599        1581 :     bundle[ i ]->txnp->flags |= fd_uint_if( initializer_bundle, FD_TXN_P_FLAGS_INITIALIZER_BUNDLE, 0U );
    1600        1581 :     bundle[ i ]->txnp->flags |= fd_uint_if( is_durable_nonce,   FD_TXN_P_FLAGS_DURABLE_NONCE,      0U );
    1601        1581 :     ord->skip = FD_PACK_SKIP_CNT;
    1602        1581 :     ord->expires_at = expires_at;
    1603             : 
    1604        1581 :     if( FD_UNLIKELY( is_durable_nonce ) ) {
    1605        1032 :       nonce_hash63[ i ] = noncemap_key_hash( ord->txn_e, pack->noncemap->seed ) & 0x7FFFFFFFFFFFFFFFUL;
    1606        1032 :       fd_pack_ord_txn_t * same_nonce = noncemap_ele_query( pack->noncemap, ord->txn_e, NULL, pack->pool );
    1607        1032 :       if( FD_LIKELY( same_nonce ) ) {
    1608             :         /* bundles take priority over non-bundles, and earlier bundles
    1609             :            take priority over later bundles. */
    1610           6 :         if( FD_UNLIKELY( same_nonce->txn->flags & FD_TXN_P_FLAGS_BUNDLE ) ) {
    1611           3 :           err = FD_PACK_INSERT_REJECT_NONCE_PRIORITY;
    1612           3 :           break;
    1613           3 :         } else {
    1614           3 :           ulong _delete_cnt = delete_transaction( pack, same_nonce, 0, 0 );
    1615           3 :           *delete_cnt += _delete_cnt;
    1616           3 :           replaces = 1;
    1617           3 :         }
    1618           6 :       }
    1619        1032 :     }
    1620             : 
    1621        1578 :     int validation_result = validate_transaction( pack, ord, txn, accts, alt_adj, !initializer_bundle );
    1622        1578 :     if( FD_UNLIKELY( validation_result ) ) { err = validation_result; break; }
    1623        1578 :   }
    1624             : 
    1625         381 :   if( FD_UNLIKELY( err ) ) {
    1626           6 :     fd_pack_insert_bundle_cancel( pack, bundle, txn_cnt );
    1627           6 :     return err;
    1628           6 :   }
    1629             : 
    1630         375 :   if( FD_UNLIKELY( initializer_bundle && pending_b_txn_cnt>0UL ) ) {
    1631           0 :     treap_rev_iter_t _cur=treap_rev_iter_init( pack->pending_bundles, pack->pool );
    1632           0 :     FD_TEST( !treap_rev_iter_done( _cur ) );
    1633           0 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pack->pool );
    1634           0 :     int is_ib = !!(cur->txn->flags & FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    1635             : 
    1636             :     /* Delete the previous IB if there is one */
    1637           0 :     if( FD_UNLIKELY( is_ib && 0UL==RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est ) ) ) {
    1638           0 :       ulong _delete_cnt = delete_transaction( pack, cur, 1, 0 );
    1639           0 :       *delete_cnt += _delete_cnt;
    1640           0 :     }
    1641           0 :   }
    1642             : 
    1643         384 :   while( FD_UNLIKELY( pack->pending_txn_cnt+txn_cnt > pack->pack_depth ) ) {
    1644           9 :     ulong _delete_cnt = delete_worst( pack, FLT_MAX, 0 );
    1645           9 :     *delete_cnt += _delete_cnt;
    1646           9 :     if( FD_UNLIKELY( !_delete_cnt ) ) {
    1647           0 :       fd_pack_insert_bundle_cancel( pack, bundle, txn_cnt );
    1648           0 :       return FD_PACK_INSERT_REJECT_PRIORITY;
    1649           0 :     }
    1650           9 :     replaces = 1;
    1651           9 :   }
    1652             : 
    1653         375 :   if( FD_UNLIKELY( !pending_b_txn_cnt ) ) {
    1654         375 :     pack->relative_bundle_idx = 1UL;
    1655         375 :   }
    1656             : 
    1657         375 :   if( FD_LIKELY( bundle_meta ) ) {
    1658           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 );
    1659           0 :   }
    1660             : 
    1661         375 :   if( FD_UNLIKELY( nonce_txn_cnt>1UL ) ) {
    1662             :     /* Do a ILP-friendly duplicate detect, naive O(n^2) algo.  With max
    1663             :        5 txns per bundle, this requires 10 comparisons.  ~ 25 cycle.  */
    1664         375 :     uint conflict_detected = 0u;
    1665        1875 :     for( ulong i=0UL; i<FD_PACK_MAX_TXN_PER_BUNDLE-1; i++ ) {
    1666        5250 :       for( ulong j=i+1; j<FD_PACK_MAX_TXN_PER_BUNDLE; j++ ) {
    1667        3750 :         ulong const ele_i = nonce_hash63[ i ];
    1668        3750 :         ulong const ele_j = nonce_hash63[ j ];
    1669        3750 :         conflict_detected |= (ele_i==ele_j);
    1670        3750 :       }
    1671        1500 :     }
    1672         375 :     if( FD_UNLIKELY( conflict_detected ) ) {
    1673         243 :       fd_pack_insert_bundle_cancel( pack, bundle, txn_cnt );
    1674         243 :       return FD_PACK_INSERT_REJECT_NONCE_CONFLICT;
    1675         243 :     }
    1676         375 :   }
    1677             : 
    1678             :   /* We put bundles in a treap just like all the other transactions, but
    1679             :      we actually want to sort them in a very specific order; the order
    1680             :      within the bundle is determined at bundle creation time, and the
    1681             :      order among the bundles is FIFO.  However, it's going to be a pain
    1682             :      to use a different sorting function for this treap, since it's
    1683             :      fixed as part of the treap creation for performance.  Don't fear
    1684             :      though; we can pull a cool math trick out of the bag to shoehorn
    1685             :      the order we'd like into the sort function we need, and to get even
    1686             :      more.
    1687             : 
    1688             :      Recall that the sort function is r_i/c_i, smallest to largest,
    1689             :      where r_i is the rewards and c_i is the cost units.  r_i and c_i
    1690             :      are both uints, and the comparison is done by cross-multiplication
    1691             :      as ulongs.  We actually use the c_i value for testing if
    1692             :      transactions fit, etc.  so let's assume that's fixed, and we know
    1693             :      it's in the range [1020, 1,551,570].
    1694             : 
    1695             :      This means, if c_0, c_1, ... c_4 are the CU costs of the
    1696             :      transactions in the first bundle, we require r_0/c_0 > r_1/c_1 >
    1697             :      ... > r_4/c_4.  Then, if c_5, ... c_9 are the CU costs of the
    1698             :      transactions in the second bundle, we also require that r_4/c_4 >
    1699             :      r_5/c_5.  For convenience, we'll impose a slightly stronger
    1700             :      constraint: we want the kth bundle to obey L*(N-k) <= r_i/c_i <
    1701             :      L*(N+1-k), for fixed constants L and N, real and integer,
    1702             :      respectively, that we'll determine. For example, this means r_4/c_4
    1703             :      >= L*N > r_5/c_5.  This enables us to group the transactions in the
    1704             :      same bundle more easily.
    1705             : 
    1706             :      For convenience in the math below, we'll set j=N-k and relabel the
    1707             :      transactions from the jth bundle c_0, ... c_4.
    1708             :      From above, we know that Lj <= r_4/c_4.  We'd like to make it as
    1709             :      close as possible given that r_4 is an integers.  Thus, put
    1710             :      r_4 = ceil( c_4 * Lj ).  r_4 is clearly an integer, and it satisfies
    1711             :      the required inequality because:
    1712             :             r_4/c_4 = ceil( c_4 * Lj)/c_4 >= c_4*Lj / c_4 >= Lj.
    1713             : 
    1714             :      Following in the same spirit, put r_3 = ceil( c_3 * (r_4+1)/c_4 ).
    1715             :      Again, r_3 is clearly an integer, and
    1716             :                 r_3/c_3  = ceil(c_3*(r_4+1)/c_4)/c_3
    1717             :                         >= (c_3*(r_4+1))/(c_3 * c_4)
    1718             :                         >= r_4/c_4 + 1/c_4
    1719             :                         >  r_4/c_4.
    1720             :      Following the pattern, we put
    1721             :                 r_2 = ceil( c_2 * (r_3+1)/c_3 )
    1722             :                 r_1 = ceil( c_1 * (r_2+1)/c_2 )
    1723             :                 r_0 = ceil( c_0 * (r_1+1)/c_1 )
    1724             :      which work for the same reason that as r_3.
    1725             : 
    1726             :      We now need for r_0 to satisfy the final inequality with L, and
    1727             :      we'll use this to guide our choice of L.  Theoretically, r_0 can be
    1728             :      expressed in terms of L, j, and c_0, ... c_4, but that's a truly
    1729             :      inscrutible expression.  Instead, we need some bounds so we can get
    1730             :      rid of all the ceil using the property that x <= ceil(x) < x+1.
    1731             :                      c_4 * Lj <= r_4 < c_4 * Lj + 1
    1732             :      The lower bound on r_3 is easy:
    1733             :          r_3 >= c_3 * (c_4 * Lj + 1)/c_4 = c_3 * Lj + c_3/c_4
    1734             :      For the upper bound,
    1735             :          r_3 < 1 + c_3*(r_4+1)/c_4 < 1 + c_3*(c_4*Lj+1 + 1)/c_4
    1736             :                                    = 1 + c_3 * Lj + 2*c_3/c_4
    1737             :      Continuing similarly gives
    1738             :        c_2*Lj +                     c_2/c_3 + c_2/c_4 <= r_2
    1739             :        c_1*Lj +           c_1/c_2 + c_1/c_c + c_1/c_4 <= r_1
    1740             :        c_0*Lj + c_0/c_1 + c_0/c_2 + c_0/c_3 + c_0/c_4 <= r_0
    1741             :      and
    1742             :        r_2 < 1 + c_2*Lj +                       2c_2/c_3 + 2c_2/c_4
    1743             :        r_1 < 1 + c_1*Lj +            2c_1/c_2 + 2c_1/c_3 + 2c_1/c_4
    1744             :        r_0 < 1 + c_0*Lj + 2c_0/c_1 + 2c_0/c_2 + 2c_0/c_3 + 2c_0/c_4.
    1745             : 
    1746             :      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
    1747             :      is then sufficient to ensure the whole sequence of 5 fits between Lj
    1748             :      and L(j+1).  Simplifying gives
    1749             :               L<= 1/c_0 + 2/c_1 + 2/c_2 + 2/c_3 + 2/c_4
    1750             :      but L must be a constant and not depend on individual values of c_i,
    1751             :      so, given that c_i >= 1020, we set L = 9/1020.
    1752             : 
    1753             :      Now all that remains is to determine N.  It's a bit unfortunate
    1754             :      that we require N, since it limits our capacity, but it's necessary
    1755             :      in any system that tries to compute priorities to enforce a FIFO
    1756             :      order.  If we've inserted more than N bundles without ever having
    1757             :      the bundle treap go empty, we'll briefly break the FIFO ordering as
    1758             :      we underflow.
    1759             : 
    1760             :      Thus, we'd like to make N as big as possible, avoiding overflow.
    1761             :      r_0, ..., r_4 are all uints, and taking the bounds from above,
    1762             :      given that for any i, i' c_i/c_{i'} <= 1551570/1020 < 1522, we have
    1763             :                r_i < 1 + 1551570 * Lj + 8*1522.
    1764             :      To avoid overflow, we assert the right-hand side is < 2^32, which
    1765             :      implies N <= 313721.
    1766             : 
    1767             :      We want to use a fixed point representation for L so that the
    1768             :      entire computation can be done with integer arithmetic.  We can do
    1769             :      the arithmetic as ulongs, which means defining L' >= L * 2^s, and
    1770             :      we compute ceil( c_4*Lj ) as floor( (c_4 * L' * j + 2^s - 1)/2^s ),
    1771             :      so c_4 * L' * j + 2^s should fit in a ulong.  With j<=N, this gives
    1772             :      s<=32, so we set s=32, which means L' = 37896771 >= 9/1020 * 2^32.
    1773             :      Note that 1 + 1551570 * L' * N + 8*1522 + 2^32 is approximately
    1774             :      2^63.999992.
    1775             : 
    1776             :      Note that this is all checked by a proof of the code translated
    1777             :      into Z3.  Unfortunately CBMC was too slow to prove this code
    1778             :      directly. */
    1779         132 :      FD_STATIC_ASSERT( FD_PACK_MIN_TXN_COST==   1020UL, adjust_constants );
    1780         132 :      FD_STATIC_ASSERT( FD_PACK_MAX_TXN_COST==1551570UL, adjust_constants );
    1781         279 : #define BUNDLE_L_PRIME 37896771UL
    1782         279 : #define BUNDLE_N       313721UL
    1783             : 
    1784         132 :   if( FD_UNLIKELY( pack->relative_bundle_idx>BUNDLE_N ) ) {
    1785           0 :     FD_LOG_WARNING(( "Too many bundles inserted without allowing pending bundles to go empty. "
    1786           0 :                      "Ordering of bundles may be incorrect." ));
    1787           0 :     pack->relative_bundle_idx = 1UL;
    1788           0 :   }
    1789         132 :   ulong bundle_idx = fd_ulong_if( initializer_bundle, 0UL, pack->relative_bundle_idx );
    1790         132 :   insert_bundle_impl( pack, bundle_idx, txn_cnt, (fd_pack_ord_txn_t * *)bundle, expires_at );
    1791             :   /* if IB this is max( 1, x ), which is x.  Otherwise, this is max(x,
    1792             :      x+1) which is x++ */
    1793         132 :   pack->relative_bundle_idx = fd_ulong_max( bundle_idx+1UL, pack->relative_bundle_idx );
    1794             : 
    1795         132 :   return (0) | (replaces<<1) | ((!!nonce_txn_cnt)<<2);
    1796         375 : }
    1797             : static inline void
    1798             : insert_bundle_impl( fd_pack_t           * pack,
    1799             :                     ulong                 bundle_idx,
    1800             :                     ulong                 txn_cnt,
    1801             :                     fd_pack_ord_txn_t * * bundle,
    1802         132 :                     ulong                 expires_at ) {
    1803         132 :   ulong prev_reward = ((BUNDLE_L_PRIME * (BUNDLE_N - bundle_idx))) - 1UL;
    1804         132 :   ulong prev_cost = 1UL<<32;
    1805             : 
    1806             :   /* Assign last to first */
    1807         678 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
    1808         546 :     fd_pack_ord_txn_t * ord = bundle[ txn_cnt-1UL - i ];
    1809         546 :     ord->rewards = (uint)(((ulong)ord->compute_est * (prev_reward + 1UL) + prev_cost-1UL)/prev_cost);
    1810         546 :     ord->root    = FD_ORD_TXN_ROOT_PENDING_BUNDLE;
    1811         546 :     prev_reward = ord->rewards;
    1812         546 :     prev_cost   = ord->compute_est;
    1813             : 
    1814             :     /* The penalty information isn't used for bundles. */
    1815         546 :     ushort penalties  [ FD_TXN_ACCT_ADDR_MAX ];
    1816         546 :     uchar  penalty_idx[ FD_TXN_ACCT_ADDR_MAX ];
    1817         546 :     populate_bitsets( pack, ord, penalties, penalty_idx );
    1818             : 
    1819         546 :     treap_ele_insert( pack->pending_bundles, ord, pack->pool );
    1820         546 :     pack->pending_txn_cnt++;
    1821             : 
    1822         546 :     if( FD_UNLIKELY( ord->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) noncemap_ele_insert( pack->noncemap, ord, pack->pool );
    1823         546 :     sig2txn_ele_insert( pack->signature_map, ord, pack->pool );
    1824             : 
    1825         546 :     fd_pack_expq_t temp[ 1 ] = {{ .expires_at = expires_at, .txn = ord }};
    1826         546 :     expq_insert( pack->expiration_q, temp );
    1827         546 :   }
    1828             : 
    1829         132 : }
    1830             : 
    1831             : void const *
    1832           0 : fd_pack_peek_bundle_meta( fd_pack_t const * pack ) {
    1833           0 :   int ib_state = pack->initializer_bundle_state;
    1834           0 :   if( FD_UNLIKELY( (ib_state==FD_PACK_IB_STATE_PENDING) | (ib_state==FD_PACK_IB_STATE_FAILED) ) ) return NULL;
    1835             : 
    1836           0 :   treap_rev_iter_t _cur=treap_rev_iter_init( pack->pending_bundles, pack->pool );
    1837           0 :   if( FD_UNLIKELY( treap_rev_iter_done( _cur ) ) ) return NULL; /* empty */
    1838             : 
    1839           0 :   fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pack->pool );
    1840           0 :   int is_ib = !!(cur->txn->flags & FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    1841           0 :   if( FD_UNLIKELY( is_ib ) ) return NULL;
    1842             : 
    1843           0 :   return (void const *)((uchar const *)pack->bundle_meta + (ulong)_cur * pack->bundle_meta_sz);
    1844           0 : }
    1845             : 
    1846             : void
    1847           3 : fd_pack_set_initializer_bundles_ready( fd_pack_t * pack ) {
    1848           3 :   pack->initializer_bundle_state = FD_PACK_IB_STATE_READY;
    1849           3 : }
    1850             : 
    1851             : void
    1852       14871 : fd_pack_metrics_write( fd_pack_t const * pack ) {
    1853       14871 :   ulong pending_regular = treap_ele_cnt( pack->pending        );
    1854       14871 :   ulong pending_votes  = treap_ele_cnt( pack->pending_votes   );
    1855       14871 :   ulong pending_bundle = treap_ele_cnt( pack->pending_bundles );
    1856       14871 :   ulong conflicting    = pack->pending_txn_cnt - pending_votes - pending_bundle - treap_ele_cnt( pack->pending );
    1857       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_ALL,         pack->pending_txn_cnt       );
    1858       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_REGULAR,     pending_regular             );
    1859       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_VOTES,       pending_votes               );
    1860       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_CONFLICTING, conflicting                 );
    1861       14871 :   FD_MGAUGE_SET( PACK, TXN_AVAILABLE_BUNDLES,     pending_bundle              );
    1862       14871 :   FD_MGAUGE_SET( PACK, TXN_PENDING_SMALLEST_CU,      pack->pending_smallest->cus );
    1863             : 
    1864       14871 :   FD_MCNT_ENUM_COPY( PACK, TXN_SCHEDULED, pack->sched_results );
    1865       14871 : }
    1866             : 
    1867             : void
    1868           0 : fd_pack_get_sched_metrics( fd_pack_t const * pack, ulong * metrics ) {
    1869           0 :   fd_memcpy( metrics, pack->sched_results, sizeof(pack->sched_results) );
    1870           0 : }
    1871             : 
    1872             : typedef struct {
    1873             :   ushort clear_rw_bit;
    1874             :   ushort clear_w_bit;
    1875             : } release_result_t;
    1876             : 
    1877             : static inline release_result_t
    1878             : release_bit_reference( fd_pack_t            * pack,
    1879      161757 :                        fd_acct_addr_t const * acct ) {
    1880             : 
    1881      161757 :   fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, *acct, NULL );
    1882      161757 :   FD_TEST( q ); /* q==NULL not be possible */
    1883             : 
    1884      161757 :   q->ref_cnt--;
    1885             : 
    1886      161757 :   if( FD_UNLIKELY( q->ref_cnt==0UL ) ) {
    1887       80074 :     ushort bit = q->bit;
    1888       80074 :     bitset_map_remove( pack->acct_to_bitset, q );
    1889       80074 :     if( FD_LIKELY( bit<FD_PACK_BITSET_MAX ) ) pack->bitset_avail[ ++(pack->bitset_avail_cnt) ] = bit;
    1890             : 
    1891       80074 :     fd_pack_addr_use_t * use = acct_uses_query( pack->acct_in_use,  *acct, NULL );
    1892       80074 :     if( FD_LIKELY( use ) ) {
    1893       75607 :       use->in_use_by |= FD_PACK_IN_USE_BIT_CLEARED;
    1894       75607 :       release_result_t ret = { .clear_rw_bit = bit,
    1895       75607 :                                .clear_w_bit = fd_ushort_if( !!(use->in_use_by & FD_PACK_IN_USE_WRITABLE), bit, FD_PACK_BITSET_MAX ) };
    1896       75607 :       return ret;
    1897       75607 :     }
    1898       80074 :   }
    1899       86150 :   release_result_t ret = { .clear_rw_bit = FD_PACK_BITSET_MAX, .clear_w_bit = FD_PACK_BITSET_MAX };
    1900       86150 :   return ret;
    1901      161757 : }
    1902             : 
    1903             : typedef struct {
    1904             :   ulong cus_scheduled;
    1905             :   ulong txns_scheduled;
    1906             :   ulong bytes_scheduled;
    1907             :   ulong alloc_scheduled;
    1908             : } sched_return_t;
    1909             : 
    1910             : static inline sched_return_t
    1911             : fd_pack_schedule_impl( fd_pack_t          * pack,
    1912             :                        treap_t            * sched_from,
    1913             :                        ulong                cu_limit,
    1914             :                        ulong                txn_limit,
    1915             :                        ulong                byte_limit,
    1916             :                        ulong                alloc_limit,
    1917             :                        ulong                bank_tile,
    1918             :                        fd_pack_smallest_t * smallest_in_treap,
    1919             :                        ulong              * use_by_bank_txn,
    1920       29649 :                        fd_txn_e_t         * out ) {
    1921             : 
    1922       29649 :   fd_pack_ord_txn_t   * pool         = pack->pool;
    1923       29649 :   fd_pack_addr_use_t  * acct_in_use  = pack->acct_in_use;
    1924       29649 :   wcost_map_t         * writer_costs = pack->writer_costs;
    1925       29649 :   fd_pack_wcost_ele_t * writers      = pack->writers;
    1926       29649 :   wcost_dlist_t       * written_list = pack->written_list;
    1927             : 
    1928       29649 :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
    1929       29649 :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
    1930       29649 :   FD_PACK_BITSET_COPY( bitset_rw_in_use, pack->bitset_rw_in_use );
    1931       29649 :   FD_PACK_BITSET_COPY( bitset_w_in_use,  pack->bitset_w_in_use  );
    1932             : 
    1933       29649 :   fd_pack_addr_use_t * use_by_bank     = pack->use_by_bank    [bank_tile];
    1934       29649 :   ulong                use_by_bank_cnt = pack->use_by_bank_cnt[bank_tile];
    1935             : 
    1936       29649 :   ulong max_write_cost_per_acct = pack->lim->max_write_cost_per_acct;
    1937             : 
    1938       29649 :   ushort compressed_slot_number = pack->compressed_slot_number;
    1939             : 
    1940       29649 :   ulong txns_scheduled  = 0UL;
    1941       29649 :   ulong cus_scheduled   = 0UL;
    1942       29649 :   ulong bytes_scheduled = 0UL;
    1943       29649 :   ulong alloc_scheduled = 0UL;
    1944             : 
    1945       29649 :   ulong bank_tile_mask = 1UL << bank_tile;
    1946             : 
    1947       29649 :   ulong fast_path     = 0UL;
    1948       29649 :   ulong slow_path     = 0UL;
    1949       29649 :   ulong cu_limit_c    = 0UL;
    1950       29649 :   ulong byte_limit_c  = 0UL;
    1951       29649 :   ulong alloc_limit_c = 0UL;
    1952       29649 :   ulong write_limit_c = 0UL;
    1953       29649 :   ulong skip_c        = 0UL;
    1954             : 
    1955       29649 :   ulong min_cus   = ULONG_MAX;
    1956       29649 :   ulong min_bytes = ULONG_MAX;
    1957             : 
    1958       29649 :   if( FD_UNLIKELY( (cu_limit<smallest_in_treap->cus) | (txn_limit==0UL) | (byte_limit<smallest_in_treap->bytes) ) ) {
    1959       14960 :     sched_return_t to_return = { .cus_scheduled = 0UL, .txns_scheduled = 0UL, .bytes_scheduled = 0UL };
    1960       14960 :     return to_return;
    1961       14960 :   }
    1962             : 
    1963       14689 :   treap_rev_iter_t prev = treap_idx_null();
    1964      246156 :   for( treap_rev_iter_t _cur=treap_rev_iter_init( sched_from, pool ); !treap_rev_iter_done( _cur ); _cur=prev ) {
    1965             :     /* Capture next so that we can delete while we iterate. */
    1966      234331 :     prev = treap_rev_iter_next( _cur, pool );
    1967             : 
    1968      234331 : #   if FD_HAS_X86
    1969      234331 :     _mm_prefetch( &(pool[ prev ].prev),      _MM_HINT_T0 );
    1970      234331 : #   endif
    1971             : 
    1972      234331 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    1973             : 
    1974      234331 :     min_cus   = fd_ulong_min( min_cus,   cur->compute_est     );
    1975      234331 :     min_bytes = fd_ulong_min( min_bytes, cur->txn->payload_sz );
    1976             : 
    1977      234331 :     ulong conflicts = 0UL;
    1978             : 
    1979      234331 :     if( FD_UNLIKELY( cur->compute_est>cu_limit ) ) {
    1980             :       /* Too big to be scheduled at the moment, but might be okay for
    1981             :          the next microblock, so we don't want to delay it. */
    1982           0 :       cu_limit_c++;
    1983           0 :       continue;
    1984           0 :     }
    1985             : 
    1986      234331 :     if( FD_UNLIKELY( cur->txn->pack_alloc>alloc_limit ) ) {
    1987             :       /* We don't want to consider this until the next block, but
    1988             :          checking alloc is as cheap as checking cur->skip, so there's
    1989             :          not a big difference. */
    1990          18 :       alloc_limit_c++;
    1991          18 :       continue;
    1992          18 :     }
    1993             : 
    1994             :     /* Likely? Unlikely? */
    1995      234313 :     if( FD_LIKELY( !FD_PACK_BITSET_INTERSECT4_EMPTY( bitset_rw_in_use, bitset_w_in_use, cur->w_bitset, cur->rw_bitset ) ) ) {
    1996      204013 :       fast_path++;
    1997      204013 :       continue;
    1998      204013 :     }
    1999             : 
    2000       30300 :     if( FD_UNLIKELY( cur->skip==compressed_slot_number ) ) {
    2001           0 :       skip_c++;
    2002           0 :       continue;
    2003           0 :     }
    2004             : 
    2005             :     /* If skip>FD_PACK_MAX_SKIP but not compressed_slot_number, it means
    2006             :        it's the compressed slot number of a previous slot.  We don't
    2007             :        care unless we're going to update the value though, so we don't
    2008             :        need to eagerly reset it to FD_PACK_MAX_SKIP.
    2009             :        compressed_slot_number is a ushort, so it's possible for it to
    2010             :        roll over, but the transaction lifetime is much shorter than
    2011             :        that, so it won't be a problem. */
    2012             : 
    2013       30300 :     if( FD_UNLIKELY( cur->txn->payload_sz>byte_limit ) ) {
    2014           6 :       byte_limit_c++;
    2015           6 :       continue;
    2016           6 :     }
    2017             : 
    2018             : 
    2019       30294 :     fd_txn_t const * txn = TXN(cur->txn);
    2020       30294 :     fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, cur->txn->payload );
    2021       30294 :     fd_acct_addr_t const * alt_adj = cur->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    2022             :     /* Check conflicts between this transaction's writable accounts and
    2023             :        current readers */
    2024       30294 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    2025       97293 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2026             : 
    2027       67002 :       fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    2028             : 
    2029       67002 :       fd_pack_wcost_ele_t const * in_wcost_table = wcost_map_ele_query_const( writer_costs, &acct, NULL, writers );
    2030       67002 :       if( FD_UNLIKELY( in_wcost_table && in_wcost_table->total_cost+cur->compute_est > max_write_cost_per_acct ) ) {
    2031             :         /* Can't be scheduled until the next block */
    2032           3 :         conflicts = ULONG_MAX;
    2033           3 :         break;
    2034           3 :       }
    2035             : 
    2036       66999 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use, acct, NULL );
    2037       66999 :       if( FD_UNLIKELY( use ) ) conflicts |= use->in_use_by; /* break? */
    2038       66999 :     }
    2039             : 
    2040       30294 :     if( FD_UNLIKELY( conflicts==ULONG_MAX ) ) {
    2041             :       /* The logic for how to adjust skip is a bit complicated, and we
    2042             :          want to do it branchlessly. Let psc=FD_PACK_SKIP_CNT,
    2043             :            Before                   After
    2044             :              1               compressed_slot_number
    2045             :            x in [2, psc]             x-1
    2046             :            x where x>psc            psc-1
    2047             : 
    2048             :          Set A=min(x, 5), B=min(A-2, compressed_slot_number-1), and
    2049             :          note that compressed_slot_number is in [psc+1, USHORT_MAX].
    2050             :          Then:
    2051             :              x                A     A-2          B      B+1
    2052             :              1                1  USHORT_MAX    csn-1    csn
    2053             :            x in [2, psc]      x     x-2         x-2     x-1
    2054             :            x where x>psc     psc   psc-2       psc-2   psc-1
    2055             :          So B+1 is the desired value. */
    2056           3 :       cur->skip = (ushort)(1+fd_ushort_min( (ushort)(compressed_slot_number-1),
    2057           3 :                                             (ushort)(fd_ushort_min( cur->skip, FD_PACK_SKIP_CNT )-2) ) );
    2058           3 :       write_limit_c++;
    2059           3 :       continue;
    2060           3 :     }
    2061             : 
    2062       30291 :     if( FD_UNLIKELY( conflicts ) ) {
    2063           6 :       slow_path++;
    2064           6 :       continue;
    2065           6 :     }
    2066             : 
    2067             :     /* Check conflicts between this transaction's readonly accounts and
    2068             :        current writers */
    2069       30285 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    2070      135999 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2071             : 
    2072      105714 :       fd_acct_addr_t const * acct = ACCT_ITER_TO_PTR( iter );
    2073      105714 :       if( fd_pack_unwritable_contains( acct ) ) continue; /* No need to track sysvars because they can't be writable */
    2074             : 
    2075       64965 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use,  *acct, NULL );
    2076       64965 :       if( use ) conflicts |= (use->in_use_by & FD_PACK_IN_USE_WRITABLE) ? use->in_use_by : 0UL;
    2077       64965 :     }
    2078             : 
    2079       30285 :     if( FD_UNLIKELY( conflicts ) ) {
    2080           0 :       slow_path++;
    2081           0 :       continue;
    2082           0 :     }
    2083             : 
    2084             :     /* Include this transaction in the microblock! */
    2085       30285 :     FD_PACK_BITSET_OR( bitset_rw_in_use, cur->rw_bitset );
    2086       30285 :     FD_PACK_BITSET_OR( bitset_w_in_use,  cur->w_bitset  );
    2087             : 
    2088       30285 :     fd_txn_p_t * out_txnp = out->txnp;
    2089       30285 :     if(
    2090       10095 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    2091       10095 :         FD_LIKELY( cur->txn->payload_sz>=1024UL )
    2092             : #else
    2093       20190 :         0
    2094       20190 : #endif
    2095       30285 :       ) {
    2096        4224 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    2097        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+   0UL), _mm512_load_epi64( cur->txn->payload+   0UL ) );
    2098        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+  64UL), _mm512_load_epi64( cur->txn->payload+  64UL ) );
    2099        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 128UL), _mm512_load_epi64( cur->txn->payload+ 128UL ) );
    2100        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 192UL), _mm512_load_epi64( cur->txn->payload+ 192UL ) );
    2101        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 256UL), _mm512_load_epi64( cur->txn->payload+ 256UL ) );
    2102        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 320UL), _mm512_load_epi64( cur->txn->payload+ 320UL ) );
    2103        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 384UL), _mm512_load_epi64( cur->txn->payload+ 384UL ) );
    2104        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 448UL), _mm512_load_epi64( cur->txn->payload+ 448UL ) );
    2105        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 512UL), _mm512_load_epi64( cur->txn->payload+ 512UL ) );
    2106        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 576UL), _mm512_load_epi64( cur->txn->payload+ 576UL ) );
    2107        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 640UL), _mm512_load_epi64( cur->txn->payload+ 640UL ) );
    2108        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 704UL), _mm512_load_epi64( cur->txn->payload+ 704UL ) );
    2109        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 768UL), _mm512_load_epi64( cur->txn->payload+ 768UL ) );
    2110        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 832UL), _mm512_load_epi64( cur->txn->payload+ 832UL ) );
    2111        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 896UL), _mm512_load_epi64( cur->txn->payload+ 896UL ) );
    2112        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+ 960UL), _mm512_load_epi64( cur->txn->payload+ 960UL ) );
    2113        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+1024UL), _mm512_load_epi64( cur->txn->payload+1024UL ) );
    2114        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+1088UL), _mm512_load_epi64( cur->txn->payload+1088UL ) );
    2115        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+1152UL), _mm512_load_epi64( cur->txn->payload+1152UL ) );
    2116        4224 :       _mm512_stream_si512( (void*)(out_txnp->payload+1216UL), _mm512_load_epi64( cur->txn->payload+1216UL ) );
    2117             : 
    2118             :       /* For V1 transactions, the payload can be up to 4096 bytes so we copy an additional 2816 bytes. */
    2119        4224 :       if( FD_UNLIKELY( txn->transaction_version==FD_TXN_V1 ) ) {
    2120           0 :         for( ulong off=1280UL; off<FD_TPU_MTU; off+=64UL ) {
    2121           0 :           _mm512_stream_si512( (void*)(out_txnp->payload+off), _mm512_load_epi64( cur->txn->payload+off ) );
    2122           0 :         }
    2123           0 :       }
    2124        4224 : #endif
    2125       26061 :     } else {
    2126       26061 :       fd_memcpy( out_txnp->payload, cur->txn->payload, cur->txn->payload_sz );
    2127       26061 :     }
    2128             : 
    2129       30285 :     out_txnp->payload_sz                                = cur->txn->payload_sz;
    2130       30285 :     out_txnp->pack_cu.requested_exec_plus_acct_data_cus = cur->txn->pack_cu.requested_exec_plus_acct_data_cus;
    2131       30285 :     out_txnp->pack_cu.non_execution_cus                 = cur->txn->pack_cu.non_execution_cus;
    2132       30285 :     out_txnp->pack_alloc                                = cur->txn->pack_alloc;
    2133       30285 :     out_txnp->scheduler_arrival_time_nanos              = cur->txn->scheduler_arrival_time_nanos;
    2134       30285 :     out_txnp->first_seen_nanos                          = cur->txn->first_seen_nanos;
    2135       30285 :     out_txnp->source_tpu                                = cur->txn->source_tpu;
    2136       30285 :     out_txnp->source_ipv4                               = cur->txn->source_ipv4;
    2137       30285 :     out_txnp->flags                                     = cur->txn->flags;
    2138       30285 :     fd_memcpy( TXN(out_txnp), txn, fd_txn_footprint( txn->instr_cnt, txn->addr_table_lookup_cnt ) );
    2139             : 
    2140             :     /* Copy the ALT accounts from the source fd_txn_e_t */
    2141       30285 :     ulong alt_acct_cnt = (ulong)txn->addr_table_adtl_cnt;
    2142       10095 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    2143             :     /* In order to use non-temporal copies, we have to copy a full cache
    2144             :        line (which fits two pubkeys) at a time.  If alt_acct_cnt is odd,
    2145             :        this copies one extra address, but it touches the same number of
    2146             :        cache lines, since both the source and destination are aligned
    2147             :        to 64 bytes. The max is even, so this can never read out of bounds. */
    2148       10095 :     fd_acct_addr_t       * dst = out->alt_accts;
    2149       10095 :     fd_acct_addr_t const * src = cur->txn_e->alt_accts;
    2150       10095 :     for( ulong i=0UL; i<alt_acct_cnt; i+=2UL ) {
    2151           0 :       _mm512_stream_si512( (void*)(dst+i), _mm512_load_epi64( src+i ) );
    2152           0 :     }
    2153             : #else
    2154       20190 :     fd_memcpy( out->alt_accts, cur->txn_e->alt_accts, alt_acct_cnt * sizeof(fd_acct_addr_t) );
    2155       20190 : #endif
    2156       30285 :     out++;
    2157             : 
    2158       30285 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    2159       97269 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2160       66984 :       fd_acct_addr_t acct_addr = *ACCT_ITER_TO_PTR( iter );
    2161             : 
    2162       66984 :       fd_pack_wcost_ele_t * in_wcost_table = wcost_map_ele_query( writer_costs, &acct_addr, NULL, writers );
    2163       66984 :       if( !in_wcost_table ) {
    2164       19258 :         in_wcost_table = wcost_pool_ele_acquire( writers );
    2165       19258 :         in_wcost_table->key        = acct_addr;
    2166       19258 :         in_wcost_table->total_cost = 0UL;
    2167       19258 :         wcost_map_ele_insert     ( writer_costs, in_wcost_table, writers );
    2168       19258 :         wcost_dlist_ele_push_tail( written_list, in_wcost_table, writers );
    2169       19258 :       }
    2170       66984 :       in_wcost_table->total_cost += cur->compute_est;
    2171             : 
    2172       66984 :       fd_pack_addr_use_t * use = acct_uses_insert( acct_in_use, acct_addr );
    2173       66984 :       use->in_use_by = bank_tile_mask | FD_PACK_IN_USE_WRITABLE;
    2174             : 
    2175       66984 :       use_by_bank[use_by_bank_cnt++] = *use;
    2176             : 
    2177             :       /* If there aren't any more references to this account in the
    2178             :          heap, it can't cause any conflicts.  That means we actually
    2179             :          don't need to record that we are using it, which is good
    2180             :          because we want to release the bit. */
    2181       66984 :       release_result_t ret = release_bit_reference( pack, &acct_addr );
    2182       66984 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, ret.clear_rw_bit );
    2183       66984 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  ret.clear_w_bit  );
    2184       66984 :     }
    2185       30285 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    2186      135999 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2187             : 
    2188      105714 :       fd_acct_addr_t acct_addr = *ACCT_ITER_TO_PTR( iter );
    2189             : 
    2190      105714 :       if( fd_pack_unwritable_contains( &acct_addr ) ) continue; /* No need to track sysvars because they can't be writable */
    2191             : 
    2192       64965 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use,  acct_addr, NULL );
    2193       64965 :       if( !use ) { use = acct_uses_insert( acct_in_use, acct_addr ); use->in_use_by = 0UL; }
    2194             : 
    2195       64965 :       if( !(use->in_use_by & bank_tile_mask) ) use_by_bank[use_by_bank_cnt++] = *use;
    2196       64965 :       use->in_use_by |= bank_tile_mask;
    2197       64965 :       use->in_use_by &= ~FD_PACK_IN_USE_BIT_CLEARED;
    2198             : 
    2199             : 
    2200       64965 :       release_result_t ret = release_bit_reference( pack, &acct_addr );
    2201       64965 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, ret.clear_rw_bit );
    2202       64965 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  ret.clear_w_bit  );
    2203       64965 :     }
    2204             : 
    2205       30285 :     txns_scheduled  += 1UL;                      txn_limit       -= 1UL;
    2206       30285 :     cus_scheduled   += cur->compute_est;         cu_limit        -= cur->compute_est;
    2207       30285 :     bytes_scheduled += cur->txn->payload_sz;     byte_limit      -= cur->txn->payload_sz;
    2208       30285 :     alloc_scheduled += cur->txn->pack_alloc;     alloc_limit     -= cur->txn->pack_alloc;
    2209             : 
    2210       30285 :     *(use_by_bank_txn++) = use_by_bank_cnt;
    2211             : 
    2212       30285 :     if( FD_UNLIKELY( cur->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) noncemap_ele_remove_fast( pack->noncemap, cur, pack->pool );
    2213       30285 :     sig2txn_ele_remove_fast( pack->signature_map, cur, pool );
    2214             : 
    2215       30285 :     cur->root = FD_ORD_TXN_ROOT_FREE;
    2216       30285 :     expq_remove( pack->expiration_q, cur->expq_idx );
    2217       30285 :     treap_idx_remove( sched_from, _cur, pool );
    2218       30285 :     trp_pool_idx_release( pool, _cur );
    2219       30285 :     pack->pending_txn_cnt--;
    2220             : 
    2221       30285 :     if( FD_UNLIKELY( (cu_limit<smallest_in_treap->cus) | (txn_limit==0UL) | (byte_limit<smallest_in_treap->bytes) ) ) break;
    2222       30285 :   }
    2223             : 
    2224       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_TAKEN_IDX       ] += txns_scheduled;
    2225       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_CU_LIMIT_IDX    ] += cu_limit_c;
    2226       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_FAST_PATH_IDX   ] += fast_path;
    2227       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_BYTE_LIMIT_IDX  ] += byte_limit_c;
    2228       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_ALLOC_LIMIT_IDX ] += alloc_limit_c;
    2229       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_WRITE_COST_IDX  ] += write_limit_c;
    2230       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_SLOW_PATH_IDX   ] += slow_path;
    2231       14689 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_DEFER_SKIP_IDX  ] += skip_c;
    2232             : 
    2233             :   /* If we scanned the whole treap and didn't break early, we now have a
    2234             :      better estimate of the smallest. */
    2235       14689 :   if( FD_UNLIKELY( treap_rev_iter_done( prev ) ) ) {
    2236       14366 :     smallest_in_treap->cus   = min_cus;
    2237       14366 :     smallest_in_treap->bytes = min_bytes;
    2238       14366 :   }
    2239             : 
    2240       14689 :   pack->use_by_bank_cnt[bank_tile] = use_by_bank_cnt;
    2241       14689 :   FD_PACK_BITSET_COPY( pack->bitset_rw_in_use, bitset_rw_in_use );
    2242       14689 :   FD_PACK_BITSET_COPY( pack->bitset_w_in_use,  bitset_w_in_use  );
    2243             : 
    2244       14689 :   sched_return_t to_return = { .cus_scheduled=cus_scheduled,     .txns_scheduled=txns_scheduled,
    2245       14689 :                                .bytes_scheduled=bytes_scheduled, .alloc_scheduled=alloc_scheduled };
    2246       14689 :   return to_return;
    2247       29649 : }
    2248             : 
    2249             : int
    2250             : fd_pack_microblock_complete( fd_pack_t * pack,
    2251       14877 :                              ulong       bank_tile ) {
    2252             :   /* If the account is in use writably, and it's in use by this banking
    2253             :      tile, then this banking tile must be the sole writer to it, so it's
    2254             :      always okay to clear the writable bit. */
    2255       14877 :   ulong clear_mask = ~((1UL<<bank_tile) | FD_PACK_IN_USE_WRITABLE);
    2256             : 
    2257             :   /* If nothing outstanding, bail quickly */
    2258       14877 :   if( FD_UNLIKELY( !(pack->outstanding_microblock_mask & (1UL<<bank_tile)) ) ) return 0;
    2259             : 
    2260        8716 :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
    2261        8716 :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
    2262        8716 :   FD_PACK_BITSET_COPY( bitset_rw_in_use, pack->bitset_rw_in_use );
    2263        8716 :   FD_PACK_BITSET_COPY( bitset_w_in_use,  pack->bitset_w_in_use  );
    2264             : 
    2265        8716 :   fd_pack_addr_use_t * base = pack->use_by_bank[bank_tile];
    2266             : 
    2267        8716 :   fd_pack_ord_txn_t       * best         = NULL;
    2268        8716 :   fd_pack_penalty_treap_t * best_penalty = NULL;
    2269        8716 :   ulong                     txn_cnt      = 0UL;
    2270             : 
    2271      116441 :   for( ulong i=0UL; i<pack->use_by_bank_cnt[bank_tile]; i++ ) {
    2272      107725 :     fd_pack_addr_use_t * use = acct_uses_query( pack->acct_in_use, base[i].key, NULL );
    2273      107725 :     FD_TEST( use );
    2274      107725 :     use->in_use_by &= clear_mask;
    2275             : 
    2276             :     /* In order to properly bound the size of bitset_map, we need to
    2277             :        release the "reference" to the account when we schedule it.
    2278             :        However, that poses a bit of a problem here, because by the time
    2279             :        we complete the microblock, that account could have been assigned
    2280             :        a different bit in the bitset.  The scheduling step tells us if
    2281             :        that is the case, and if so, we know that the bits in
    2282             :        bitset_w_in_use and bitset_rw_in_use were already cleared as
    2283             :        necessary.
    2284             : 
    2285             :        Note that it's possible for BIT_CLEARED to be set and then unset
    2286             :        by later uses, but then the account would be in use on other
    2287             :        banks, so we wouldn't try to observe the old value.  For example:
    2288             :        Suppose bit 0->account A, bit 1->account B, and we have two
    2289             :        transactions that read A, B.  We schedule a microblock to bank 0,
    2290             :        taking both transactions, which sets the counts for A, B to 0,
    2291             :        and releases the bits, clearing bits 0 and 1, and setting
    2292             :        BIT_CLEARED.  Then we get two more transactions that read
    2293             :        accounts C, D, A, B, and they get assigned 0->C, 1->D, 2->A,
    2294             :        3->B.  We try to schedule a microblock to bank 1 that takes one
    2295             :        of those transactions.  This unsets BIT_CLEARED for A, B.
    2296             :        Finally, the first microblock completes.  Even though the bitset
    2297             :        map has the new bits for A and B which are "wrong" compared to
    2298             :        when the transaction was initially scheduled, those bits have
    2299             :        already been cleared and reset properly in the bitset as needed.
    2300             :        A and B will still be in use by bank 1, so we won't clear any
    2301             :        bits.  If, on the other hand, the microblock scheduled to bank 1
    2302             :        completes first, bits 0 and 1 will be cleared for accounts C and
    2303             :        D, while bits 2 and 3 will remain set, which is correct.  Then
    2304             :        when bank 0 completes, bits 2 and 3 will be cleared. */
    2305      107725 :     if( FD_LIKELY( !use->in_use_by ) ) { /* if in_use_by==0, doesn't include BIT_CLEARED */
    2306       40146 :       fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, base[i].key, NULL );
    2307       40146 :       FD_TEST( q );
    2308       40146 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  q->bit );
    2309       40146 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, q->bit );
    2310             : 
    2311             :       /* Because this account is no longer in use, it might be possible
    2312             :          to schedule a transaction that writes to it.  Check its
    2313             :          penalty treap if it has one, and potentially move it to the
    2314             :          main treap. */
    2315       40146 :       fd_pack_penalty_treap_t * p_trp = penalty_map_query( pack->penalty_treaps, base[i].key, NULL );
    2316       40146 :       if( FD_UNLIKELY( p_trp ) ) {
    2317        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 );
    2318        5507 :         if( FD_UNLIKELY( !best || COMPARE_WORSE( best, best_in_trp ) ) ) {
    2319        2806 :           best         = best_in_trp;
    2320        2806 :           best_penalty = p_trp;
    2321        2806 :         }
    2322        5507 :       }
    2323       40146 :     }
    2324             : 
    2325      107725 :     if( FD_LIKELY( !(use->in_use_by & ~FD_PACK_IN_USE_BIT_CLEARED) ) ) acct_uses_remove( pack->acct_in_use, use );
    2326             : 
    2327      107725 :     if( FD_UNLIKELY( i+1UL==pack->use_by_bank_txn[ bank_tile ][ txn_cnt ] ) ) {
    2328       26502 :       txn_cnt++;
    2329       26502 :       if( FD_LIKELY( best ) ) {
    2330             :         /* move best to the main treap */
    2331        2806 :         treap_ele_remove( best_penalty->penalty_treap, best, pack->pool );
    2332        2806 :         best->root = FD_ORD_TXN_ROOT_PENDING;
    2333        2806 :         treap_ele_insert( pack->pending,               best, pack->pool );
    2334             : 
    2335        2806 :         pack->pending_smallest->cus   = fd_ulong_min( pack->pending_smallest->cus,   best->compute_est             );
    2336        2806 :         pack->pending_smallest->bytes = fd_ulong_min( pack->pending_smallest->bytes, best->txn_e->txnp->payload_sz );
    2337             : 
    2338        2806 :         if( FD_UNLIKELY( !treap_ele_cnt( best_penalty->penalty_treap ) ) ) {
    2339          12 :           treap_delete( treap_leave( best_penalty->penalty_treap ) );
    2340             :           /* Removal invalidates any pointers we got from
    2341             :              penalty_map_query, but we immediately set these to NULL, so
    2342             :              we're not keeping any pointers around. */
    2343          12 :           penalty_map_remove( pack->penalty_treaps, best_penalty );
    2344          12 :         }
    2345        2806 :         best         = NULL;
    2346        2806 :         best_penalty = NULL;
    2347        2806 :       }
    2348       26502 :     }
    2349      107725 :   }
    2350             : 
    2351        8716 :   pack->use_by_bank_cnt[bank_tile] = 0UL;
    2352             : 
    2353        8716 :   FD_PACK_BITSET_COPY( pack->bitset_rw_in_use, bitset_rw_in_use );
    2354        8716 :   FD_PACK_BITSET_COPY( pack->bitset_w_in_use,  bitset_w_in_use  );
    2355             : 
    2356             :   /* outstanding_microblock_mask never has the writable bit set, so we
    2357             :      don't care about clearing it here either. */
    2358        8716 :   pack->outstanding_microblock_mask &= clear_mask;
    2359        8716 :   return 1;
    2360        8716 : }
    2361             : 
    2362       14718 : #define TRY_BUNDLE_NO_READY_BUNDLES      0
    2363           6 : #define TRY_BUNDLE_HAS_CONFLICTS       (-1)
    2364           6 : #define TRY_BUNDLE_DOES_NOT_FIT        (-2)
    2365           6 : #define TRY_BUNDLE_SUCCESS(n)          ( n) /* schedule bundle with n transactions */
    2366             : static inline int
    2367             : fd_pack_try_schedule_bundle( fd_pack_t  * pack,
    2368             :                              ulong        bank_tile,
    2369       14724 :                              fd_txn_e_t * out ) {
    2370       14724 :   int state = pack->initializer_bundle_state;
    2371       14724 :   if( FD_UNLIKELY( (state==FD_PACK_IB_STATE_PENDING) | (state==FD_PACK_IB_STATE_FAILED ) ) ) return TRY_BUNDLE_NO_READY_BUNDLES;
    2372             : 
    2373       14724 :   fd_pack_ord_txn_t * pool    = pack->pool;
    2374       14724 :   treap_t           * bundles = pack->pending_bundles;
    2375             : 
    2376       14724 :   int require_ib;
    2377       14724 :   if( FD_UNLIKELY( state==FD_PACK_IB_STATE_NOT_INITIALIZED ) ) { require_ib = 1; }
    2378       14724 :   if( FD_LIKELY  ( state==FD_PACK_IB_STATE_READY           ) ) { require_ib = 0; }
    2379             : 
    2380       14724 :   treap_rev_iter_t _cur  = treap_rev_iter_init( bundles, pool );
    2381       14724 :   ulong bundle_idx = ULONG_MAX;
    2382             : 
    2383             :   /* Skip any that we've marked as won't fit in this block */
    2384       14724 :   while( FD_UNLIKELY( !treap_rev_iter_done( _cur ) && treap_rev_iter_ele( _cur, pool )->skip==pack->compressed_slot_number ) ) {
    2385           0 :     _cur = treap_rev_iter_next( _cur, pool );
    2386           0 :     pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_DEFER_SKIP_IDX ]++;
    2387           0 :   }
    2388             : 
    2389       14724 :   if( FD_UNLIKELY( treap_rev_iter_done( _cur ) ) ) return TRY_BUNDLE_NO_READY_BUNDLES;
    2390             : 
    2391           6 :   treap_rev_iter_t   _txn0 = _cur;
    2392           6 :   fd_pack_ord_txn_t * txn0 = treap_rev_iter_ele( _txn0, pool );
    2393           6 :   int is_ib = !!(txn0->txn->flags & FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    2394           6 :   bundle_idx = RC_TO_REL_BUNDLE_IDX( txn0->rewards, txn0->compute_est );
    2395             : 
    2396           6 :   if( FD_UNLIKELY( require_ib & !is_ib ) ) return TRY_BUNDLE_NO_READY_BUNDLES;
    2397             : 
    2398             :   /* At this point, we have our candidate bundle, so we'll schedule it
    2399             :      if we can.  If we can't, we won't schedule anything. */
    2400             : 
    2401             : 
    2402           6 :   fd_pack_addr_use_t * bundle_temp_inserted[ FD_PACK_MAX_TXN_PER_BUNDLE * FD_TXN_ACCT_ADDR_MAX ];
    2403           6 :   ulong bundle_temp_inserted_cnt = 0UL;
    2404             : 
    2405           6 :   ulong bank_tile_mask = 1UL << bank_tile;
    2406             : 
    2407           6 :   int doesnt_fit   = 0;
    2408           6 :   int has_conflict = 0;
    2409           6 :   ulong txn_cnt = 0UL;
    2410             : 
    2411           6 :   ulong cu_limit         = pack->lim->max_cost_per_block           - pack->cumulative_block_cost;
    2412           6 :   ulong byte_limit       = pack->lim->max_data_bytes_per_block     - pack->data_bytes_consumed;
    2413           6 :   ulong microblock_limit = pack->lim->max_microblocks_per_block    - pack->microblock_cnt;
    2414           6 :   ulong alloc_limit      = pack->lim->max_allocated_data_per_block - pack->alloc_consumed;
    2415             : 
    2416           6 :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
    2417           6 :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
    2418           6 :   FD_PACK_BITSET_COPY( bitset_rw_in_use, pack->bitset_rw_in_use );
    2419           6 :   FD_PACK_BITSET_COPY( bitset_w_in_use,  pack->bitset_w_in_use  );
    2420             : 
    2421             :   /* last_use_in_txn_cnt[i+1] Keeps track of the number of accounts that
    2422             :      have their last reference in transaction i of the bundle.  This
    2423             :      esoteric value is important for computing use_by_bank_txn.
    2424             :      last_use_in_txn_cnt[0] is garbage. */
    2425           6 :   ulong last_use_in_txn_cnt[ 1UL+FD_PACK_MAX_TXN_PER_BUNDLE ] = { 0UL };
    2426             : 
    2427           6 :   fd_pack_addr_use_t   null_use[1]    = {{{{ 0 }}, { 0 }}};
    2428           6 :   fd_pack_wcost_ele_t  null_wcost[1]  = { 0 };
    2429             : 
    2430          24 :   while( !(doesnt_fit | has_conflict) & !treap_rev_iter_done( _cur ) ) {
    2431          18 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2432          18 :     ulong this_bundle_idx = RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est );
    2433          18 :     if( FD_UNLIKELY( this_bundle_idx!=bundle_idx ) ) break;
    2434             : 
    2435          18 :     if( FD_UNLIKELY( cur->compute_est>cu_limit ) ) {
    2436           0 :       doesnt_fit = 1;
    2437           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_CU_LIMIT_IDX ]++;
    2438           0 :       break;
    2439           0 :     }
    2440          18 :     cu_limit -= cur->compute_est;
    2441             : 
    2442             :     /* Each transaction in a bundle turns into a microblock */
    2443          18 :     if( FD_UNLIKELY( microblock_limit==0UL ) ) {
    2444           0 :       doesnt_fit = 1;
    2445           0 :       FD_MCNT_INC( PACK, MICROBLOCK_PER_BLOCK_LIMIT_REACHED, 1UL );
    2446           0 :       break;
    2447           0 :     }
    2448          18 :     microblock_limit--;
    2449             : 
    2450          18 :     if( FD_UNLIKELY( cur->txn->payload_sz+MICROBLOCK_DATA_OVERHEAD>byte_limit ) ) {
    2451           0 :       doesnt_fit = 1;
    2452           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_BYTE_LIMIT_IDX ]++;
    2453           0 :       break;
    2454           0 :     }
    2455          18 :     byte_limit -= cur->txn->payload_sz + MICROBLOCK_DATA_OVERHEAD;
    2456             : 
    2457          18 :     if( FD_UNLIKELY( cur->txn->pack_alloc>alloc_limit ) ) {
    2458           0 :       doesnt_fit = 1;
    2459           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_ALLOC_LIMIT_IDX ]++;
    2460           0 :       break;
    2461           0 :     }
    2462          18 :     alloc_limit -= cur->txn->pack_alloc;
    2463             : 
    2464          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 ) ) ) {
    2465           0 :       has_conflict = 1;
    2466           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_FAST_PATH_IDX ]++;
    2467           0 :       break;
    2468           0 :     }
    2469             : 
    2470             :     /* Don't update the actual in-use bitset, because the transactions
    2471             :        in the bundle are allowed to conflict with each other. */
    2472          18 :     FD_PACK_BITSET_OR( bitset_rw_in_use, cur->rw_bitset );
    2473          18 :     FD_PACK_BITSET_OR( bitset_w_in_use,  cur->w_bitset  );
    2474             : 
    2475             : 
    2476          18 :     fd_txn_t const * txn = TXN(cur->txn);
    2477          18 :     fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, cur->txn->payload );
    2478          18 :     fd_acct_addr_t const * alt_adj = cur->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    2479             : 
    2480             :     /* Check conflicts between this transaction's writable accounts and
    2481             :        current readers */
    2482          18 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    2483         108 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2484             : 
    2485          90 :       fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    2486             : 
    2487          90 :       fd_pack_addr_use_t * in_bundle_temp = acct_uses_query          ( pack->bundle_temp_map, acct, null_use                  );
    2488          90 :       ulong current_cost                  = wcost_map_ele_query_const( pack->writer_costs,   &acct, null_wcost, pack->writers )->total_cost;
    2489          90 :       ulong carried_cost                  = (ulong)in_bundle_temp->carried_cost;
    2490          90 :       if( FD_UNLIKELY( current_cost + carried_cost + cur->compute_est > pack->lim->max_write_cost_per_acct ) ) {
    2491           0 :         doesnt_fit = 1;
    2492           0 :         pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_WRITE_COST_IDX ]++;
    2493           0 :         break;
    2494           0 :       }
    2495             : 
    2496          90 :       if( FD_LIKELY( in_bundle_temp==null_use ) ) { /* Not in temp bundle table yet */
    2497          30 :         in_bundle_temp    = acct_uses_insert( pack->bundle_temp_map, acct );
    2498          30 :         in_bundle_temp->_ = 0UL;
    2499          30 :         bundle_temp_inserted[ bundle_temp_inserted_cnt++ ] = in_bundle_temp;
    2500          30 :       }
    2501          90 :       in_bundle_temp->carried_cost += (uint)cur->compute_est; /* < 2^21, but >0 */
    2502          90 :       in_bundle_temp->ref_cnt++;
    2503          90 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]--;
    2504          90 :       in_bundle_temp->last_use_in = (ushort)(txn_cnt+1UL);
    2505          90 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]++;
    2506             : 
    2507          90 :       if( FD_UNLIKELY( acct_uses_query( pack->acct_in_use, acct, null_use )->in_use_by ) ) {
    2508           0 :         has_conflict = 1;
    2509           0 :         pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_SLOW_PATH_IDX ]++;
    2510           0 :         break;
    2511           0 :       }
    2512          90 :     }
    2513          18 :     if( has_conflict | doesnt_fit ) break;
    2514             : 
    2515             :     /* Check conflicts between this transaction's readonly accounts and
    2516             :        current writers */
    2517          18 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    2518         126 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2519             : 
    2520         108 :       fd_acct_addr_t const * acct = ACCT_ITER_TO_PTR( iter );
    2521         108 :       if( fd_pack_unwritable_contains( acct ) ) continue; /* No need to track sysvars because they can't be writable */
    2522             : 
    2523          54 :       fd_pack_addr_use_t * in_bundle_temp = acct_uses_query( pack->bundle_temp_map, *acct, null_use );
    2524          54 :       if( FD_LIKELY( in_bundle_temp==null_use ) ) { /* Not in temp bundle table yet */
    2525          18 :         in_bundle_temp = acct_uses_insert( pack->bundle_temp_map, *acct );
    2526          18 :         in_bundle_temp->_ = 0UL;
    2527          18 :         bundle_temp_inserted[ bundle_temp_inserted_cnt++ ] = in_bundle_temp;
    2528          18 :       }
    2529          54 :       in_bundle_temp->ref_cnt++;
    2530          54 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]--;
    2531          54 :       in_bundle_temp->last_use_in = (ushort)(txn_cnt+1UL);
    2532          54 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]++;
    2533             : 
    2534          54 :       if( FD_UNLIKELY( acct_uses_query( pack->acct_in_use,  *acct, null_use )->in_use_by & FD_PACK_IN_USE_WRITABLE ) ) {
    2535           0 :         has_conflict = 1;
    2536           0 :         pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_SLOW_PATH_IDX ]++;
    2537           0 :         break;
    2538           0 :       }
    2539          54 :     }
    2540             : 
    2541          18 :     if( has_conflict | doesnt_fit ) break;
    2542             : 
    2543          18 :     txn_cnt++;
    2544          18 :     _cur = treap_rev_iter_next( _cur, pool );
    2545          18 :   }
    2546           6 :   int retval = fd_int_if( doesnt_fit, TRY_BUNDLE_DOES_NOT_FIT,
    2547           6 :                                       fd_int_if( has_conflict, TRY_BUNDLE_HAS_CONFLICTS, TRY_BUNDLE_SUCCESS( (int)txn_cnt ) ) );
    2548             : 
    2549           6 :   if( FD_UNLIKELY( retval<=0 ) ) {
    2550           0 :     for( ulong i=0UL; i<bundle_temp_inserted_cnt; i++ ) {
    2551           0 :       acct_uses_remove( pack->bundle_temp_map, bundle_temp_inserted[ bundle_temp_inserted_cnt-i-1UL ] );
    2552           0 :     }
    2553           0 :     FD_TEST( acct_uses_key_cnt( pack->bundle_temp_map )==0UL );
    2554             : 
    2555           0 :     if( FD_UNLIKELY( retval==TRY_BUNDLE_DOES_NOT_FIT ) ) {
    2556             :       /* Decrement the skip count for the bundle we just tried. */
    2557             : 
    2558           0 :       for( _cur=_txn0; !treap_rev_iter_done( _cur ); _cur=treap_rev_iter_next( _cur, pool ) ) {
    2559           0 :         fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2560           0 :         ulong this_bundle_idx = RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est );
    2561           0 :         if( FD_UNLIKELY( this_bundle_idx!=bundle_idx ) ) break;
    2562             : 
    2563             :         /* See fd_pack_schedule_impl for this line */
    2564           0 :         cur->skip = (ushort)(1+fd_ushort_min( (ushort)(pack->compressed_slot_number-1),
    2565           0 :               (ushort)(fd_ushort_min( cur->skip, FD_PACK_SKIP_CNT )-2) ) );
    2566           0 :       }
    2567           0 :     }
    2568           0 :     return retval;
    2569           0 :   }
    2570             : 
    2571             :   /* This bundle passed validation, so now we'll take it! */
    2572           6 :   pack->outstanding_microblock_mask |= bank_tile_mask;
    2573             : 
    2574           6 :   treap_rev_iter_t   _end  = _cur;
    2575           6 :   treap_rev_iter_t   _next;
    2576             : 
    2577             :   /* We'll carefully incrementally construct use_by_bank and
    2578             :      use_by_bank_txn based on the contents of bundle_temp and
    2579             :      last_use_in_txn_cnt. */
    2580           6 :   fd_pack_addr_use_t * use_by_bank     = pack->use_by_bank    [bank_tile];
    2581           6 :   ulong              * use_by_bank_txn = pack->use_by_bank_txn[bank_tile];
    2582           6 :   ulong cum_sum = 0UL;
    2583          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 ]; }
    2584           6 :   pack->use_by_bank_cnt[bank_tile] = cum_sum;
    2585             : 
    2586             : 
    2587          24 :   for( _cur=_txn0; _cur!=_end; _cur=_next ) {
    2588          18 :     _next = treap_rev_iter_next( _cur, pool );
    2589             : 
    2590          18 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2591          18 :     fd_txn_t const    * txn = TXN(cur->txn);
    2592          18 :     fd_txn_p_t        * out_txnp = out->txnp;
    2593          18 :     fd_memcpy( out_txnp->payload, cur->txn->payload, cur->txn->payload_sz                                           );
    2594          18 :     fd_memcpy( TXN(out_txnp),     txn,               fd_txn_footprint( txn->instr_cnt, txn->addr_table_lookup_cnt ) );
    2595          18 :     out_txnp->payload_sz                      = cur->txn->payload_sz;
    2596          18 :     out_txnp->pack_cu.requested_exec_plus_acct_data_cus = cur->txn->pack_cu.requested_exec_plus_acct_data_cus;
    2597          18 :     out_txnp->pack_cu.non_execution_cus       = cur->txn->pack_cu.non_execution_cus;
    2598          18 :     out_txnp->pack_alloc                      = cur->txn->pack_alloc;
    2599          18 :     out_txnp->scheduler_arrival_time_nanos    = cur->txn->scheduler_arrival_time_nanos;
    2600          18 :     out_txnp->first_seen_nanos                = cur->txn->first_seen_nanos;
    2601          18 :     out_txnp->source_tpu                      = cur->txn->source_tpu;
    2602          18 :     out_txnp->source_ipv4                     = cur->txn->source_ipv4;
    2603          18 :     out_txnp->flags                           = cur->txn->flags;
    2604             :     /* Copy the ALT accounts from the source fd_txn_e_t */
    2605          18 :     ulong alt_acct_cnt = (ulong)txn->addr_table_adtl_cnt;
    2606          18 :     fd_memcpy( out->alt_accts, cur->txn_e->alt_accts, alt_acct_cnt * sizeof(fd_acct_addr_t) );
    2607          18 :     out++;
    2608             : 
    2609          18 :     pack->cumulative_block_cost += cur->compute_est;
    2610          18 :     pack->data_bytes_consumed   += cur->txn->payload_sz + MICROBLOCK_DATA_OVERHEAD;
    2611          18 :     pack->alloc_consumed        += cur->txn->pack_alloc;
    2612          18 :     pack->microblock_cnt        += 1UL;
    2613             : 
    2614          18 :     if( FD_UNLIKELY( cur->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) noncemap_ele_remove_fast( pack->noncemap, cur, pack->pool );
    2615          18 :     sig2txn_ele_remove_fast( pack->signature_map, cur, pack->pool );
    2616             : 
    2617          18 :     cur->root = FD_ORD_TXN_ROOT_FREE;
    2618          18 :     expq_remove( pack->expiration_q, cur->expq_idx );
    2619          18 :     treap_idx_remove( pack->pending_bundles, _cur, pack->pool );
    2620          18 :     trp_pool_idx_release( pack->pool, _cur );
    2621          18 :     pack->pending_txn_cnt--;
    2622          18 :   }
    2623             : 
    2624             : 
    2625          54 :   for( ulong i=0UL; i<bundle_temp_inserted_cnt; i++ ) {
    2626             :     /* In order to clear bundle_temp_map with the typical trick, we need
    2627             :        to iterate through bundle_temp_inserted backwards. */
    2628          48 :     fd_pack_addr_use_t * addr_use = bundle_temp_inserted[ bundle_temp_inserted_cnt-i-1UL ];
    2629             : 
    2630          48 :     int any_writers = addr_use->carried_cost>0U; /* Did any transaction in this bundle write lock this account address? */
    2631             : 
    2632          48 :     if( FD_LIKELY( any_writers ) ) { /* UNLIKELY? */
    2633          30 :       fd_pack_wcost_ele_t * in_wcost_table = wcost_map_ele_query( pack->writer_costs, &addr_use->key, NULL, pack->writers );
    2634          30 :       if( !in_wcost_table ) {
    2635          15 :         in_wcost_table = wcost_pool_ele_acquire( pack->writers );
    2636          15 :         in_wcost_table->key        = addr_use->key;
    2637          15 :         in_wcost_table->total_cost = 0UL;
    2638          15 :         wcost_map_ele_insert     ( pack->writer_costs, in_wcost_table, pack->writers );
    2639          15 :         wcost_dlist_ele_push_tail( pack->written_list, in_wcost_table, pack->writers );
    2640          15 :       }
    2641          30 :       in_wcost_table->total_cost += (ulong)addr_use->carried_cost;
    2642          30 :     }
    2643             : 
    2644             :     /* in_use_by must be set before releasing the bit reference */
    2645          48 :     fd_pack_addr_use_t * use = acct_uses_query( pack->acct_in_use, addr_use->key, NULL );
    2646          48 :     if( !use ) { use = acct_uses_insert( pack->acct_in_use, addr_use->key ); use->in_use_by = 0UL; }
    2647          48 :     use->in_use_by |= bank_tile_mask | fd_ulong_if( any_writers, FD_PACK_IN_USE_WRITABLE, 0UL );
    2648          48 :     use->in_use_by &= ~FD_PACK_IN_USE_BIT_CLEARED;
    2649             : 
    2650          48 :     use_by_bank[ use_by_bank_txn[ addr_use->last_use_in-1UL ]++ ] = *use;
    2651             : 
    2652         192 :     for( ulong k=0UL; k<(ulong)addr_use->ref_cnt; k++ ) {
    2653         144 :       release_result_t ret = release_bit_reference( pack, &(addr_use->key) );
    2654         144 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, ret.clear_rw_bit );
    2655         144 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  ret.clear_w_bit  );
    2656         144 :     }
    2657             : 
    2658          48 :     acct_uses_remove( pack->bundle_temp_map, addr_use );
    2659          48 :   }
    2660             : 
    2661           6 :   FD_PACK_BITSET_COPY( pack->bitset_rw_in_use, bitset_rw_in_use );
    2662           6 :   FD_PACK_BITSET_COPY( pack->bitset_w_in_use,  bitset_w_in_use  );
    2663             : 
    2664           6 :   if( FD_UNLIKELY( is_ib ) ) {
    2665           0 :     pack->initializer_bundle_state = FD_PACK_IB_STATE_PENDING;
    2666           0 :   }
    2667           6 :   return retval;
    2668           6 : }
    2669             : 
    2670             : 
    2671             : ulong
    2672             : fd_pack_schedule_next_microblock( fd_pack_t *  pack,
    2673             :                                   ulong        total_cus,
    2674             :                                   float        vote_fraction,
    2675             :                                   ulong        bank_tile,
    2676             :                                   int          schedule_flags,
    2677       14877 :                                   fd_txn_e_t * out ) {
    2678             : 
    2679             :   /* TODO: Decide if these are exactly how we want to handle limits */
    2680       14877 :   total_cus = fd_ulong_min( total_cus, pack->lim->max_cost_per_block - pack->cumulative_block_cost );
    2681       14877 :   ulong vote_cus = fd_ulong_min( (ulong)((float)total_cus * vote_fraction),
    2682       14877 :                                  pack->lim->max_vote_cost_per_block - pack->cumulative_vote_cost );
    2683       14877 :   ulong vote_reserved_txns = fd_ulong_min( vote_cus/FD_PACK_MAX_SIMPLE_VOTE_COST,
    2684       14877 :                                            (ulong)((float)pack->lim->max_txn_per_microblock * vote_fraction) );
    2685             : 
    2686             : 
    2687       14877 :   if( FD_UNLIKELY( (pack->microblock_cnt>=pack->lim->max_microblocks_per_block) ) ) {
    2688           0 :     FD_MCNT_INC( PACK, MICROBLOCK_PER_BLOCK_LIMIT_REACHED, 1UL );
    2689           0 :     return 0UL;
    2690           0 :   }
    2691       14877 :   if( FD_UNLIKELY( pack->data_bytes_consumed+MICROBLOCK_DATA_OVERHEAD+FD_TXN_MIN_SERIALIZED_SZ>pack->lim->max_data_bytes_per_block) ) {
    2692           0 :     FD_MCNT_INC( PACK, DATA_PER_BLOCK_LIMIT_REACHED, 1UL );
    2693           0 :     return 0UL;
    2694           0 :   }
    2695             : 
    2696       14877 :   ulong * use_by_bank_txn = pack->use_by_bank_txn[ bank_tile ];
    2697             : 
    2698       14877 :   ulong cu_limit    = total_cus - vote_cus;
    2699       14877 :   ulong txn_limit   = pack->lim->max_txn_per_microblock - vote_reserved_txns;
    2700       14877 :   ulong scheduled   = 0UL;
    2701       14877 :   ulong byte_limit  = pack->lim->max_data_bytes_per_block - pack->data_bytes_consumed - MICROBLOCK_DATA_OVERHEAD;
    2702       14877 :   ulong alloc_limit = pack->lim->max_allocated_data_per_block - pack->alloc_consumed;
    2703             : 
    2704       14877 :   sched_return_t status = {0}, status1 = {0};
    2705             : 
    2706       14877 :   if( FD_LIKELY( schedule_flags & FD_PACK_SCHEDULE_VOTE ) ) {
    2707             :     /* Schedule vote transactions */
    2708       14778 :     status1= fd_pack_schedule_impl( pack, pack->pending_votes, vote_cus, vote_reserved_txns, byte_limit, alloc_limit, bank_tile,
    2709       14778 :         pack->pending_votes_smallest, use_by_bank_txn, out+scheduled );
    2710             : 
    2711       14778 :     scheduled                   += status1.txns_scheduled;
    2712       14778 :     pack->cumulative_vote_cost  += status1.cus_scheduled;
    2713       14778 :     pack->cumulative_block_cost += status1.cus_scheduled;
    2714       14778 :     pack->data_bytes_consumed   += status1.bytes_scheduled;
    2715       14778 :     byte_limit                  -= status1.bytes_scheduled;
    2716       14778 :     pack->alloc_consumed        += status1.alloc_scheduled;
    2717       14778 :     alloc_limit                 -= status1.alloc_scheduled;
    2718       14778 :     use_by_bank_txn             += status1.txns_scheduled;
    2719             :     /* Add any remaining CUs/txns to the non-vote limits */
    2720       14778 :     txn_limit += vote_reserved_txns - status1.txns_scheduled;
    2721       14778 :     cu_limit  += vote_cus - status1.cus_scheduled;
    2722       14778 :   }
    2723             : 
    2724             :   /* Bundle can't mix with votes, so only try to schedule a bundle if we
    2725             :      didn't get any votes. */
    2726       14877 :   if( FD_UNLIKELY( !!(schedule_flags & FD_PACK_SCHEDULE_BUNDLE) & (status1.txns_scheduled==0UL) ) ) {
    2727       14724 :     int bundle_result = fd_pack_try_schedule_bundle( pack, bank_tile, out );
    2728       14724 :     if( FD_UNLIKELY( bundle_result>0                         ) ) return (ulong)bundle_result;
    2729       14718 :     if( FD_UNLIKELY( bundle_result==TRY_BUNDLE_HAS_CONFLICTS ) ) return 0UL;
    2730             :     /* in the NO_READY_BUNDLES or DOES_NOT_FIT case, we schedule like
    2731             :        normal. */
    2732             :     /* We have the early returns here because try_schedule_bundle does
    2733             :        the bookkeeping internally, since the calculations are a bit
    2734             :        different in that case. */
    2735       14718 :   }
    2736             : 
    2737             : 
    2738             :   /* Fill any remaining space with non-vote transactions */
    2739       14871 :   if( FD_LIKELY( schedule_flags & FD_PACK_SCHEDULE_TXN ) ) {
    2740       14871 :     status = fd_pack_schedule_impl( pack, pack->pending,       cu_limit, txn_limit,          byte_limit, alloc_limit, bank_tile,
    2741       14871 :         pack->pending_smallest,       use_by_bank_txn, out+scheduled );
    2742             : 
    2743       14871 :     scheduled                   += status.txns_scheduled;
    2744       14871 :     pack->cumulative_block_cost += status.cus_scheduled;
    2745       14871 :     pack->data_bytes_consumed   += status.bytes_scheduled;
    2746       14871 :     pack->alloc_consumed        += status.alloc_scheduled;
    2747       14871 :   }
    2748             : 
    2749       14871 :   ulong nonempty = (ulong)(scheduled>0UL);
    2750       14871 :   pack->microblock_cnt              += nonempty;
    2751       14871 :   pack->outstanding_microblock_mask |= nonempty << bank_tile;
    2752       14871 :   pack->data_bytes_consumed         += nonempty * MICROBLOCK_DATA_OVERHEAD;
    2753             : 
    2754             :   /* Update metrics counters */
    2755       14871 :   fd_pack_metrics_write( pack );
    2756       14871 :   FD_MGAUGE_SET( PACK, BLOCK_CU_CONSUMED, pack->cumulative_block_cost );
    2757             : 
    2758       14871 :   fd_histf_sample( pack->txn_per_microblock,  scheduled              );
    2759       14871 :   fd_histf_sample( pack->vote_per_microblock, status1.txns_scheduled );
    2760             : 
    2761        4957 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    2762        4957 :   _mm_sfence();
    2763        4957 : #endif
    2764             : 
    2765       14871 :   return scheduled;
    2766       14877 : }
    2767             : 
    2768      274518 : ulong fd_pack_bank_tile_cnt     ( fd_pack_t const * pack ) { return pack->bank_tile_cnt;         }
    2769           0 : ulong fd_pack_current_block_cost( fd_pack_t const * pack ) { return pack->cumulative_block_cost; }
    2770             : 
    2771             : 
    2772             : void
    2773           0 : fd_pack_set_block_limits( fd_pack_t * pack, fd_pack_limits_t const * limits ) {
    2774           0 :   FD_TEST( limits->max_cost_per_block      >= FD_PACK_MAX_COST_PER_BLOCK_LOWER_BOUND      );
    2775           0 :   FD_TEST( limits->max_vote_cost_per_block >= FD_PACK_MAX_VOTE_COST_PER_BLOCK_LOWER_BOUND );
    2776           0 :   FD_TEST( limits->max_write_cost_per_acct >= FD_PACK_MAX_WRITE_COST_PER_ACCT_LOWER_BOUND );
    2777             : 
    2778           0 :   pack->lim->max_microblocks_per_block    = limits->max_microblocks_per_block;
    2779           0 :   pack->lim->max_data_bytes_per_block     = limits->max_data_bytes_per_block;
    2780           0 :   pack->lim->max_cost_per_block           = limits->max_cost_per_block;
    2781           0 :   pack->lim->max_vote_cost_per_block      = limits->max_vote_cost_per_block;
    2782           0 :   pack->lim->max_write_cost_per_acct      = limits->max_write_cost_per_acct;
    2783           0 :   pack->lim->max_allocated_data_per_block = limits->max_allocated_data_per_block;
    2784           0 : }
    2785             : 
    2786             : void
    2787           0 : fd_pack_get_block_limits( fd_pack_t * pack, fd_pack_limits_usage_t * opt_limits_usage, fd_pack_limits_t * opt_limits ) {
    2788           0 :   if( FD_LIKELY( opt_limits_usage ) ) {
    2789           0 :     opt_limits_usage->block_cost          = pack->cumulative_block_cost;
    2790           0 :     opt_limits_usage->vote_cost           = pack->cumulative_vote_cost;
    2791           0 :     opt_limits_usage->block_data_bytes    = pack->data_bytes_consumed;
    2792           0 :     opt_limits_usage->microblocks         = pack->microblock_cnt;
    2793           0 :     opt_limits_usage->alloc               = pack->alloc_consumed;
    2794           0 :   }
    2795           0 :   if( FD_LIKELY( opt_limits ) ) fd_memcpy( opt_limits, pack->lim, sizeof(fd_pack_limits_t) );
    2796           0 : }
    2797             : 
    2798             : void
    2799           0 : fd_pack_get_top_writers( fd_pack_t const * pack, fd_pack_addr_use_t top_writers[static FD_PACK_TOP_WRITERS_CNT] ) {
    2800           0 :   fd_memcpy( top_writers, pack->top_writers, sizeof(pack->top_writers) );
    2801           0 : }
    2802             : 
    2803             : void
    2804           0 : fd_pack_get_pending_smallest( fd_pack_t * pack, fd_pack_smallest_t * opt_pending_smallest, fd_pack_smallest_t * opt_votes_smallest ) {
    2805           0 :   if( FD_LIKELY( opt_pending_smallest ) ) fd_memcpy( opt_pending_smallest, pack->pending_smallest,       sizeof(fd_pack_smallest_t) );
    2806           0 :   if( FD_LIKELY( opt_votes_smallest ) )   fd_memcpy( opt_votes_smallest,   pack->pending_votes_smallest, sizeof(fd_pack_smallest_t) );
    2807           0 : }
    2808             : 
    2809             : void
    2810             : fd_pack_rebate_cus( fd_pack_t              * pack,
    2811           6 :                     fd_pack_rebate_t const * rebate ) {
    2812           6 :   if( FD_UNLIKELY( (rebate->ib_result!=0) & (pack->initializer_bundle_state==FD_PACK_IB_STATE_PENDING ) ) ) {
    2813           0 :     pack->initializer_bundle_state = fd_int_if( rebate->ib_result==1, FD_PACK_IB_STATE_READY, FD_PACK_IB_STATE_FAILED );
    2814           0 :   }
    2815             : 
    2816           6 :   pack->cumulative_block_cost  -= rebate->total_cost_rebate;
    2817           6 :   pack->cumulative_vote_cost   -= rebate->vote_cost_rebate;
    2818           6 :   pack->data_bytes_consumed    -= rebate->data_bytes_rebate;
    2819           6 :   pack->alloc_consumed         -= rebate->alloc_rebate;
    2820           6 :   pack->cumulative_rebated_cus += rebate->total_cost_rebate;
    2821             :   /* For now, we want to ignore the microblock count rebate.  There are
    2822             :      3 places the microblock count is kept (here, in the pack tile, and
    2823             :      in the PoH tile), and they all need to count microblocks that end
    2824             :      up being empty in the same way.  It would be better from a
    2825             :      DoS-resistance perspective for them all not to count empty
    2826             :      microblocks towards the total, but there's a race condition:
    2827             :      suppose pack schedules a microblock containing one transaction that
    2828             :      doesn't land on chain, the slot ends, and then pack informs PoH of
    2829             :      the number of microblocks before the final rebate comes through.
    2830             :      This isn't unsolvable, but it's pretty gross, so it's probably
    2831             :      better to just not apply the rebate for now. */
    2832           6 :   (void)rebate->microblock_cnt_rebate;
    2833             : 
    2834           6 :   wcost_map_t * writer_costs = pack->writer_costs;
    2835          18 :   for( ulong i=0UL; i<rebate->writer_cnt; i++ ) {
    2836          12 :     fd_pack_wcost_ele_t * in_wcost_table = wcost_map_ele_query( writer_costs, &rebate->writer_rebates[i].key, NULL, pack->writers );
    2837          12 :     if( FD_UNLIKELY( !in_wcost_table ) ) FD_LOG_ERR(( "Rebate to unknown written account" ));
    2838          12 :     in_wcost_table->total_cost -= rebate->writer_rebates[i].rebate_cus;
    2839             :     /* If the rebate drops it to zero, return it to the pool */
    2840          12 :     if( FD_UNLIKELY( !in_wcost_table->total_cost ) ) {
    2841           3 :       wcost_map_ele_remove_fast( writer_costs,       in_wcost_table, pack->writers );
    2842           3 :       wcost_dlist_ele_remove   ( pack->written_list, in_wcost_table, pack->writers );
    2843           3 :       wcost_pool_ele_release   ( pack->writers,      in_wcost_table );
    2844           3 :     }
    2845          12 :   }
    2846           6 : }
    2847             : 
    2848             : 
    2849             : ulong
    2850             : fd_pack_expire_before( fd_pack_t * pack,
    2851          15 :                        ulong       expire_before ) {
    2852          15 :   expire_before = fd_ulong_max( expire_before, pack->expire_before );
    2853          15 :   ulong deleted_cnt = 0UL;
    2854          15 :   fd_pack_expq_t * prq = pack->expiration_q;
    2855         327 :   while( (expq_cnt( prq )>0UL) & (prq->expires_at<expire_before) ) {
    2856         312 :     fd_pack_ord_txn_t * expired = prq->txn;
    2857             : 
    2858             :     /* fd_pack_delete_transaction also removes it from the heap */
    2859             :     /* All the transactions in the same bundle have the same expiration
    2860             :        time, so this loop will end up deleting them all, even with
    2861             :        delete_full_bundle set to 0. */
    2862         312 :     ulong _delete_cnt = delete_transaction( pack, expired, 0, 1 );
    2863         312 :     deleted_cnt += _delete_cnt;
    2864         312 :     FD_TEST( _delete_cnt );
    2865         312 :   }
    2866             : 
    2867          15 :   pack->expire_before = expire_before;
    2868          15 :   return deleted_cnt;
    2869          15 : }
    2870             : 
    2871             : void
    2872          12 : fd_pack_end_block( fd_pack_t * pack ) {
    2873             :   /* rounded division */
    2874          12 :   ulong pct_cus_per_block = (pack->cumulative_block_cost*100UL + (pack->lim->max_cost_per_block>>1))/pack->lim->max_cost_per_block;
    2875          12 :   fd_histf_sample( pack->pct_cus_per_block,       pct_cus_per_block                                          );
    2876          12 :   fd_histf_sample( pack->net_cus_per_block,       pack->cumulative_block_cost                                );
    2877          12 :   fd_histf_sample( pack->rebated_cus_per_block,   pack->cumulative_rebated_cus                               );
    2878          12 :   fd_histf_sample( pack->scheduled_cus_per_block, pack->cumulative_rebated_cus + pack->cumulative_block_cost );
    2879             : 
    2880          12 :   pack->microblock_cnt              = 0UL;
    2881          12 :   pack->data_bytes_consumed         = 0UL;
    2882          12 :   pack->cumulative_block_cost       = 0UL;
    2883          12 :   pack->cumulative_vote_cost        = 0UL;
    2884          12 :   pack->cumulative_rebated_cus      = 0UL;
    2885          12 :   pack->outstanding_microblock_mask = 0UL;
    2886          12 :   pack->alloc_consumed              = 0UL;
    2887             : 
    2888          12 :   pack->initializer_bundle_state = FD_PACK_IB_STATE_NOT_INITIALIZED;
    2889             : 
    2890          12 :   acct_uses_clear( pack->acct_in_use  );
    2891          12 :   memset( pack->top_writers, 0, sizeof(pack->top_writers) );
    2892             : 
    2893          12 :   fd_pack_addr_use_t * last_top_writer = pack->top_writers + FD_PACK_TOP_WRITERS_CNT-1UL;
    2894             : 
    2895        8148 :   while( !wcost_dlist_is_empty( pack->written_list, pack->writers ) ) {
    2896        8136 :     fd_pack_wcost_ele_t * writer = wcost_dlist_ele_pop_head( pack->written_list, pack->writers );
    2897        8136 :     if( FD_UNLIKELY( writer->total_cost>last_top_writer->total_cost ) ) {
    2898          81 :       last_top_writer->key        = writer->key;
    2899          81 :       last_top_writer->total_cost = writer->total_cost;
    2900          81 :       fd_pack_writer_cost_sort_insert( pack->top_writers, FD_PACK_TOP_WRITERS_CNT );
    2901          81 :     }
    2902             :     /* Clearing the cost field here is unnecessary (since it gets
    2903             :        cleared on insert), but makes debugging a bit easier. */
    2904        8136 :     writer->total_cost = 0UL;
    2905        8136 :     wcost_map_ele_remove_fast( pack->writer_costs, writer, pack->writers );
    2906        8136 :     wcost_pool_ele_release( pack->writers, writer );
    2907        8136 :   }
    2908             : 
    2909             :   /* compressed_slot_number is > FD_PACK_SKIP_CNT, which means +1 is the
    2910             :      max unless it overflows. */
    2911          12 :   pack->compressed_slot_number = fd_ushort_max( (ushort)(pack->compressed_slot_number+1), (ushort)(FD_PACK_SKIP_CNT+1) );
    2912             : 
    2913          12 :   FD_PACK_BITSET_CLEAR( pack->bitset_rw_in_use );
    2914          12 :   FD_PACK_BITSET_CLEAR( pack->bitset_w_in_use  );
    2915             : 
    2916          24 :   for( ulong i=0UL; i<pack->bank_tile_cnt; i++ ) pack->use_by_bank_cnt[i] = 0UL;
    2917             : 
    2918             :   /* If our stake is low and we don't become leader often, end_block
    2919             :      might get called on the order of O(1/hr), which feels too
    2920             :      infrequent to do anything related to metrics.  However, we only
    2921             :      update the histograms when we are leader, so this is actually a
    2922             :      good place to copy them. */
    2923          12 :   FD_MHIST_COPY( PACK, TXN_PER_MICROBLOCK,  pack->txn_per_microblock  );
    2924          12 :   FD_MHIST_COPY( PACK, VOTE_PER_MICROBLOCK, pack->vote_per_microblock );
    2925             : 
    2926          12 :   FD_MGAUGE_SET( PACK, BLOCK_CU_CONSUMED, 0UL                           );
    2927          12 :   FD_MHIST_COPY( PACK, CU_SCHEDULED_PER_BLOCK, pack->scheduled_cus_per_block );
    2928          12 :   FD_MHIST_COPY( PACK, CU_REBATED_PER_BLOCK,   pack->rebated_cus_per_block   );
    2929          12 :   FD_MHIST_COPY( PACK, CU_NET_PER_BLOCK,       pack->net_cus_per_block       );
    2930          12 :   FD_MHIST_COPY( PACK, CU_PCT,                 pack->pct_cus_per_block       );
    2931          12 : }
    2932             : 
    2933             : static void
    2934             : release_tree( treap_t           * treap,
    2935             :               sig2txn_t         * signature_map,
    2936             :               noncemap_t        * noncemap,
    2937           9 :               fd_pack_ord_txn_t * pool ) {
    2938           9 :   treap_fwd_iter_t next;
    2939          18 :   for( treap_fwd_iter_t it=treap_fwd_iter_init( treap, pool ); !treap_fwd_iter_done( it ); it=next ) {
    2940           9 :     next = treap_fwd_iter_next( it, pool );
    2941           9 :     ulong idx = treap_fwd_iter_idx( it );
    2942           9 :     pool[ idx ].root = FD_ORD_TXN_ROOT_FREE;
    2943           9 :     treap_idx_remove       ( treap,         idx, pool );
    2944           9 :     sig2txn_idx_remove_fast( signature_map, idx, pool );
    2945           9 :     trp_pool_idx_release   ( pool,          idx       );
    2946           9 :     if( pool[ idx ].txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) {
    2947           9 :       noncemap_idx_remove_fast( noncemap, idx, pool );
    2948           9 :     }
    2949           9 :   }
    2950           9 : }
    2951             : 
    2952             : void
    2953           3 : fd_pack_clear_all( fd_pack_t * pack ) {
    2954           3 :   pack->pending_txn_cnt        = 0UL;
    2955           3 :   pack->microblock_cnt         = 0UL;
    2956           3 :   pack->cumulative_block_cost  = 0UL;
    2957           3 :   pack->cumulative_vote_cost   = 0UL;
    2958           3 :   pack->cumulative_rebated_cus = 0UL;
    2959           3 :   pack->data_bytes_consumed    = 0UL;
    2960           3 :   pack->alloc_consumed         = 0UL;
    2961             : 
    2962           3 :   pack->pending_smallest->cus         = ULONG_MAX;
    2963           3 :   pack->pending_smallest->bytes       = ULONG_MAX;
    2964           3 :   pack->pending_votes_smallest->cus   = ULONG_MAX;
    2965           3 :   pack->pending_votes_smallest->bytes = ULONG_MAX;
    2966             : 
    2967           3 :   release_tree( pack->pending,         pack->signature_map, pack->noncemap, pack->pool );
    2968           3 :   release_tree( pack->pending_votes,   pack->signature_map, pack->noncemap, pack->pool );
    2969           3 :   release_tree( pack->pending_bundles, pack->signature_map, pack->noncemap, pack->pool );
    2970             : 
    2971           3 :   ulong const pool_max = trp_pool_max( pack->pool );
    2972         132 :   for( ulong i=0UL; i<pool_max; i++ ) {
    2973         129 :     if( FD_UNLIKELY( pack->pool[ i ].root!=FD_ORD_TXN_ROOT_FREE ) ) {
    2974           0 :       fd_pack_ord_txn_t * const del = pack->pool + i;
    2975           0 :       fd_txn_t * txn = TXN( del->txn );
    2976           0 :       fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, del->txn->payload );
    2977           0 :       fd_acct_addr_t const * alt_adj = del->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    2978           0 :       fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( del->root ) );
    2979           0 :       fd_pack_penalty_treap_t * penalty_treap = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    2980           0 :       FD_TEST( penalty_treap );
    2981           0 :       release_tree( penalty_treap->penalty_treap, pack->signature_map, pack->noncemap, pack->pool );
    2982           0 :     }
    2983         129 :   }
    2984             : 
    2985           3 :   pack->compressed_slot_number = (ushort)(FD_PACK_SKIP_CNT+1);
    2986             : 
    2987           3 :   expq_remove_all( pack->expiration_q );
    2988             : 
    2989           3 :   acct_uses_clear( pack->acct_in_use  );
    2990             : 
    2991          18 :   while( !wcost_dlist_is_empty( pack->written_list, pack->writers ) ) {
    2992          15 :     fd_pack_wcost_ele_t * writer = wcost_dlist_ele_pop_head( pack->written_list, pack->writers );
    2993          15 :     writer->total_cost = 0UL;
    2994          15 :     wcost_map_ele_remove_fast( pack->writer_costs, writer, pack->writers );
    2995          15 :     wcost_pool_ele_release( pack->writers, writer );
    2996          15 :   }
    2997             : 
    2998           3 :   penalty_map_clear( pack->penalty_treaps );
    2999             : 
    3000           3 :   FD_PACK_BITSET_CLEAR( pack->bitset_rw_in_use );
    3001           3 :   FD_PACK_BITSET_CLEAR( pack->bitset_w_in_use  );
    3002           3 :   bitset_map_clear( pack->acct_to_bitset );
    3003           3 :   pack->bitset_avail[ 0 ] = FD_PACK_BITSET_SLOWPATH;
    3004        1027 :   for( ulong i=0UL; i<FD_PACK_BITSET_MAX; i++ ) pack->bitset_avail[ i+1UL ] = (ushort)i;
    3005           3 :   pack->bitset_avail_cnt = FD_PACK_BITSET_MAX;
    3006             : 
    3007           6 :   for( ulong i=0UL; i<pack->bank_tile_cnt; i++ ) pack->use_by_bank_cnt[i] = 0UL;
    3008           3 : }
    3009             : 
    3010             : 
    3011             : /* If delete_full_bundle is non-zero and the transaction to delete is
    3012             :    part of a bundle, the rest of the bundle it is part of will be
    3013             :    deleted as well.
    3014             :    If move_from_penalty_treap is non-zero and the transaction to delete
    3015             :    is in the pending treap, move the best transaction in any of the
    3016             :    conflicting penalty treaps to the pending treap (if there is one). */
    3017             : static ulong
    3018             : delete_transaction( fd_pack_t         * pack,
    3019             :                     fd_pack_ord_txn_t * containing,
    3020             :                     int                 delete_full_bundle,
    3021        3951 :                     int                 move_from_penalty_treap ) {
    3022             : 
    3023        3951 :   fd_txn_t * txn = TXN( containing->txn );
    3024        3951 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, containing->txn->payload );
    3025        3951 :   fd_acct_addr_t const * alt_adj = containing->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    3026             : 
    3027        3951 :   treap_t * root = NULL;
    3028        3951 :   int root_idx = containing->root;
    3029        3951 :   fd_pack_penalty_treap_t * penalty_treap = NULL;
    3030        3951 :   switch( root_idx & FD_ORD_TXN_ROOT_TAG_MASK ) {
    3031           0 :     case FD_ORD_TXN_ROOT_FREE:           FD_LOG_CRIT(( "Double free detected" ));
    3032         780 :     case FD_ORD_TXN_ROOT_PENDING:        root = pack->pending;         break;
    3033           0 :     case FD_ORD_TXN_ROOT_PENDING_VOTE:   root = pack->pending_votes;   break;
    3034         519 :     case FD_ORD_TXN_ROOT_PENDING_BUNDLE: root = pack->pending_bundles; break;
    3035        2652 :     case FD_ORD_TXN_ROOT_PENALTY( 0 ): {
    3036        2652 :       fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( root_idx ) );
    3037        2652 :       penalty_treap = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    3038        2652 :       FD_TEST( penalty_treap );
    3039        2652 :       root = penalty_treap->penalty_treap;
    3040        2652 :       break;
    3041        2652 :     }
    3042        3951 :   }
    3043             : 
    3044        3951 :   ulong delete_cnt = 0UL;
    3045        3951 :   if( FD_UNLIKELY( delete_full_bundle & (root==pack->pending_bundles) ) ) {
    3046             :     /* When we delete, the structure of the treap may move around, but
    3047             :        pointers to inside the pool will remain valid */
    3048         123 :     fd_pack_ord_txn_t * bundle_ptrs[ FD_PACK_MAX_TXN_PER_BUNDLE-1UL ];
    3049         123 :     fd_pack_ord_txn_t * pool       = pack->pool;
    3050         123 :     ulong               cnt        = 0UL;
    3051         123 :     ulong               bundle_idx = RC_TO_REL_BUNDLE_IDX( containing->rewards, containing->compute_est );
    3052             : 
    3053             :     /* Iterate in both directions from the current transaction */
    3054         123 :     for( treap_fwd_iter_t _cur=treap_fwd_iter_next( (treap_fwd_iter_t)treap_idx_fast( containing, pool ), pool );
    3055         426 :         !treap_fwd_iter_done( _cur ); _cur=treap_fwd_iter_next( _cur, pool ) ) {
    3056         303 :       fd_pack_ord_txn_t * cur = treap_fwd_iter_ele( _cur, pool );
    3057         303 :       if( FD_LIKELY( bundle_idx==RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est ) ) ) {
    3058         303 :         bundle_ptrs[ cnt++ ] = cur;
    3059         303 :       } else {
    3060           0 :         break;
    3061           0 :       }
    3062         303 :       FD_TEST( cnt<FD_PACK_MAX_TXN_PER_BUNDLE );
    3063         303 :     }
    3064             : 
    3065         123 :     for( treap_rev_iter_t _cur=treap_rev_iter_next( (treap_rev_iter_t)treap_idx_fast( containing, pool ), pool );
    3066         216 :         !treap_rev_iter_done( _cur ); _cur=treap_rev_iter_next( _cur, pool ) ) {
    3067          93 :       fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    3068          93 :       if( FD_LIKELY( bundle_idx==RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est ) ) ) {
    3069          93 :         bundle_ptrs[ cnt++ ] = cur;
    3070          93 :       } else {
    3071           0 :         break;
    3072           0 :       }
    3073          93 :       FD_TEST( cnt<FD_PACK_MAX_TXN_PER_BUNDLE );
    3074          93 :     }
    3075             : 
    3076             :     /* Delete them each, setting delete_full_bundle to 0 to avoid
    3077             :        infinite recursion. */
    3078         519 :     for( ulong k=0UL; k<cnt; k++ ) delete_cnt += delete_transaction( pack, bundle_ptrs[ k ], 0, 0 );
    3079         123 :   }
    3080             : 
    3081             : 
    3082        3951 :   if( FD_UNLIKELY( move_from_penalty_treap & (root==pack->pending) ) ) {
    3083             : 
    3084         774 :     fd_pack_ord_txn_t       * best         = NULL;
    3085         774 :     fd_pack_penalty_treap_t * best_penalty = NULL;
    3086             : 
    3087         774 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    3088        3399 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3089        2625 :       fd_pack_penalty_treap_t * p_trp = penalty_map_query( pack->penalty_treaps, *ACCT_ITER_TO_PTR( iter ), NULL );
    3090        2625 :       if( FD_UNLIKELY( p_trp ) ) {
    3091        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 );
    3092        1340 :         if( FD_UNLIKELY( !best || COMPARE_WORSE( best, best_in_trp ) ) ) {
    3093         701 :           best         = best_in_trp;
    3094         701 :           best_penalty = p_trp;
    3095         701 :         }
    3096        1340 :       }
    3097        2625 :     }
    3098             : 
    3099         774 :     if( FD_LIKELY( best ) ) {
    3100             :       /* move best to the main treap */
    3101         701 :       treap_ele_remove( best_penalty->penalty_treap, best, pack->pool );
    3102         701 :       best->root = FD_ORD_TXN_ROOT_PENDING;
    3103         701 :       treap_ele_insert( pack->pending,               best, pack->pool );
    3104             : 
    3105         701 :       pack->pending_smallest->cus   = fd_ulong_min( pack->pending_smallest->cus,   best->compute_est             );
    3106         701 :       pack->pending_smallest->bytes = fd_ulong_min( pack->pending_smallest->bytes, best->txn_e->txnp->payload_sz );
    3107             : 
    3108         701 :       if( FD_UNLIKELY( !treap_ele_cnt( best_penalty->penalty_treap ) ) ) {
    3109           9 :         treap_delete( treap_leave( best_penalty->penalty_treap ) );
    3110           9 :         penalty_map_remove( pack->penalty_treaps, best_penalty );
    3111           9 :       }
    3112         701 :     }
    3113         774 :   }
    3114             : 
    3115        3951 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_ALL );
    3116       38088 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3117       34137 :     if( FD_UNLIKELY( fd_pack_unwritable_contains( ACCT_ITER_TO_PTR( iter ) ) ) ) continue;
    3118             : 
    3119       29664 :     release_result_t ret = release_bit_reference( pack, ACCT_ITER_TO_PTR( iter ) );
    3120       29664 :     FD_PACK_BITSET_CLEARN( pack->bitset_rw_in_use, ret.clear_rw_bit );
    3121       29664 :     FD_PACK_BITSET_CLEARN( pack->bitset_w_in_use,  ret.clear_w_bit  );
    3122       29664 :   }
    3123             : 
    3124        3951 :   if( FD_UNLIKELY( containing->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) {
    3125         261 :     noncemap_ele_remove_fast( pack->noncemap, containing, pack->pool );
    3126         261 :   }
    3127        3951 :   expq_remove( pack->expiration_q, containing->expq_idx );
    3128        3951 :   containing->root = FD_ORD_TXN_ROOT_FREE;
    3129        3951 :   treap_ele_remove( root, containing, pack->pool );
    3130        3951 :   sig2txn_ele_remove_fast( pack->signature_map, containing, pack->pool );
    3131        3951 :   trp_pool_ele_release( pack->pool, containing );
    3132             : 
    3133        3951 :   delete_cnt += 1UL;
    3134        3951 :   pack->pending_txn_cnt--;
    3135             : 
    3136        3951 :   if( FD_UNLIKELY( penalty_treap && treap_ele_cnt( root )==0UL ) ) {
    3137           0 :     penalty_map_remove( pack->penalty_treaps, penalty_treap );
    3138           0 :   }
    3139             : 
    3140        3951 :   return delete_cnt;
    3141        3951 : }
    3142             : 
    3143             : ulong
    3144             : fd_pack_delete_transaction( fd_pack_t              * pack,
    3145         180 :                             fd_ed25519_sig_t const * sig0 ) {
    3146         180 :   ulong cnt = 0;
    3147         180 :   ulong next = ULONG_MAX;
    3148             : 
    3149         180 :   fd_txn_e_t query_e = {0};
    3150         180 :   fd_memcpy( query_e.txnp[0].payload, sig0, FD_TXN_SIGNATURE_SZ );
    3151         180 :   for( ulong idx = sig2txn_idx_query_const( pack->signature_map, &query_e, ULONG_MAX, pack->pool );
    3152         336 :       idx!=ULONG_MAX; idx=next ) {
    3153             :     /* Iterating while deleting, not just this element, but perhaps the
    3154             :        whole bundle, feels a bit dangerous, but is actually fine because
    3155             :        a bundle can't contain two transactions with the same signature.
    3156             :        That means we know next is not part of the same bundle as idx,
    3157             :        which means that deleting idx will not delete next. */
    3158         156 :     next = sig2txn_idx_next_const( idx, ULONG_MAX, pack->pool );
    3159         156 :     cnt += delete_transaction( pack, pack->pool+idx, 1, 1 );
    3160         156 :   }
    3161             : 
    3162         180 :   return cnt;
    3163         180 : }
    3164             : 
    3165             : 
    3166             : int
    3167             : fd_pack_verify( fd_pack_t * pack,
    3168         435 :                 void      * scratch ) {
    3169             :   /* Invariants:
    3170             :      sig2txn_query has exact same contents as all treaps combined
    3171             :      root matches treap
    3172             :      Keys of acct_to_bitset is exactly union of all accounts in all
    3173             :             transactions in treaps, with ref counted appropriately
    3174             :      bits in bitset_avail is complement of bits allocated in
    3175             :             acct_to_bitset
    3176             :      expires_at consistent between treap, prq
    3177             :      use_by_bank does not contain duplicates
    3178             :      use_by_bank consistent with acct_in_use
    3179             :      elements in pool but not in a treap have root set to free
    3180             :      all penalty treaps have at least one transaction
    3181             :      all elements in penalty treaps are in the one that the root indicates
    3182             :      */
    3183             : 
    3184             :   /* TODO:
    3185             :      bitset_{r}w_in_use = bitset_map_query( everything in acct_in_use that doesn't have FD_PACK_IN_USE_BIT_CLEARED )
    3186             :      bitset_w_in_use & bitset_rw_in_use == bitset_w_in_use
    3187             :      */
    3188      314708 : #define VERIFY_TEST( cond, ... ) do {   \
    3189      314708 :     if( FD_UNLIKELY( !(cond) ) ) {      \
    3190           0 :       FD_LOG_WARNING(( __VA_ARGS__ ));  \
    3191           0 :       return -(__LINE__);               \
    3192           0 :     }                                   \
    3193      314708 :   } while( 0 )
    3194             : 
    3195         435 :   ulong max_acct_in_treap  = pack->pack_depth * FD_TXN_ACCT_ADDR_MAX;
    3196         435 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap  ) );
    3197         435 :   void * _bitset_map_copy = scratch;
    3198         435 :   void * _bitset_map_orig = bitset_map_leave( pack->acct_to_bitset );
    3199         435 :   fd_memcpy( _bitset_map_copy, _bitset_map_orig, bitset_map_footprint( lg_acct_in_trp ) );
    3200             : 
    3201         435 :   fd_pack_bitset_acct_mapping_t * bitset_copy = bitset_map_join( _bitset_map_copy );
    3202             : 
    3203             :   /* Check that each bit is in exactly one place */
    3204         435 :   FD_PACK_BITSET_DECLARE( processed ); FD_PACK_BITSET_CLEAR( processed );
    3205         435 :   FD_PACK_BITSET_DECLARE( bit       ); FD_PACK_BITSET_CLEAR( bit       );
    3206         435 :   FD_PACK_BITSET_DECLARE( full      ); FD_PACK_BITSET_CLEAR( full      );
    3207             : 
    3208         435 :   if( FD_UNLIKELY( pack->bitset_avail[0]!=FD_PACK_BITSET_SLOWPATH ) ) return -1;
    3209      148237 :   for( ulong i=1UL; i<=pack->bitset_avail_cnt; i++ ) {
    3210      147802 :     FD_PACK_BITSET_CLEAR( bit );
    3211      147802 :     FD_PACK_BITSET_SETN( bit, pack->bitset_avail[ i ] );
    3212      147802 :     VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, processed, processed ),
    3213      147802 :         "bit %hu in avail set twice", pack->bitset_avail[ i ] );
    3214      147802 :     FD_PACK_BITSET_OR( processed, bit );
    3215      147802 :   }
    3216             : 
    3217         435 :   ulong total_references = 0UL;
    3218    62865843 :   for( ulong i=0UL; i<bitset_map_slot_cnt( bitset_copy ); i++ ) {
    3219    62865408 :     if( !bitset_map_key_inval( bitset_copy[ i ].key ) ) {
    3220        1086 :       VERIFY_TEST( bitset_copy[ i ].ref_cnt>0UL, "account address in table with 0 ref count" );
    3221             : 
    3222        1086 :       total_references += bitset_copy[ i ].ref_cnt;
    3223             : 
    3224        1086 :       FD_PACK_BITSET_CLEAR( bit );
    3225        1086 :       FD_PACK_BITSET_SETN( bit, bitset_copy[ i ].bit );
    3226        1086 :       VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, processed, processed ), "bit %hu used twice", bitset_copy[ i ].bit );
    3227        1086 :       FD_PACK_BITSET_OR( processed, bit );
    3228        1086 :     }
    3229    62865408 :   }
    3230      148915 :   for( ulong i=0UL; i<FD_PACK_BITSET_MAX; i++ ) {
    3231      148480 :     FD_PACK_BITSET_CLEAR( bit );
    3232      148480 :     FD_PACK_BITSET_SETN( bit, i );
    3233      148480 :     VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, processed, processed ), "bit %lu missing", i );
    3234      148480 :     FD_PACK_BITSET_SETN( full, i );
    3235      148480 :   }
    3236             : 
    3237             : 
    3238         435 :   fd_pack_ord_txn_t  * pool = pack->pool;
    3239         435 :   treap_t * treaps[ 3 ] = { pack->pending, pack->pending_votes, pack->pending_bundles };
    3240         435 :   ulong txn_cnt = 0UL;
    3241             : 
    3242      984012 :   for( ulong k=0UL; k<3UL+penalty_map_slot_cnt( pack->penalty_treaps ); k++ ) {
    3243      983577 :     treap_t * treap = NULL;
    3244             : 
    3245      983577 :     if( k<3UL ) treap = treaps[ k ];
    3246      982272 :     else if( FD_LIKELY( penalty_map_key_inval( pack->penalty_treaps[ k-3UL ].key ) ) ) continue;
    3247           0 :     else {
    3248           0 :       treap = pack->penalty_treaps[ k-3UL ].penalty_treap;
    3249           0 :       VERIFY_TEST( treap_ele_cnt( treap )>0UL, "empty penalty treap in map" );
    3250           0 :     }
    3251             : 
    3252        1728 :     for( treap_rev_iter_t _cur=treap_rev_iter_init( treap, pool ); !treap_rev_iter_done( _cur );
    3253        1305 :         _cur=treap_rev_iter_next( _cur, pool ) ) {
    3254         423 :       txn_cnt++;
    3255         423 :       fd_pack_ord_txn_t const * cur = treap_rev_iter_ele_const( _cur, pool );
    3256         423 :       fd_txn_t const * txn = TXN(cur->txn);
    3257         423 :       fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, cur->txn->payload );
    3258         423 :       fd_acct_addr_t const * alt_adj = cur->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    3259             : 
    3260         423 :       fd_pack_ord_txn_t const * in_tbl = sig2txn_ele_query_const( pack->signature_map, &cur->_txn_e, NULL, pool );
    3261         423 :       VERIFY_TEST( in_tbl, "signature missing from sig2txn" );
    3262             : 
    3263         423 :       VERIFY_TEST( (ulong)(cur->root & FD_ORD_TXN_ROOT_TAG_MASK)==fd_ulong_min( k, 3UL )+1UL, "treap element had bad root" );
    3264         423 :       if( FD_LIKELY( (cur->root & FD_ORD_TXN_ROOT_TAG_MASK)==FD_ORD_TXN_ROOT_PENALTY(0) ) ) {
    3265           0 :         fd_acct_addr_t const * penalty_acct = ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( cur->root ) );
    3266           0 :         VERIFY_TEST( !memcmp( penalty_acct, pack->penalty_treaps[ k-3UL ].key.b, 32UL ), "transaction in wrong penalty treap" );
    3267           0 :       }
    3268         423 :       VERIFY_TEST( cur->expires_at>=pack->expire_before, "treap element expired" );
    3269             : 
    3270         423 :       fd_pack_expq_t const * eq = pack->expiration_q + cur->expq_idx;
    3271         423 :       VERIFY_TEST( eq->txn==cur, "expq inconsistent" );
    3272         423 :       VERIFY_TEST( eq->expires_at==cur->expires_at, "expq expires_at inconsistent" );
    3273             : 
    3274         423 :       FD_PACK_BITSET_DECLARE( complement );
    3275         423 :       FD_PACK_BITSET_COPY( complement, full );
    3276         423 :       for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    3277        1413 :           iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3278         990 :         fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    3279             : 
    3280         990 :         fd_pack_bitset_acct_mapping_t * q = bitset_map_query( bitset_copy, acct, NULL );
    3281         990 :         VERIFY_TEST( q, "account in transaction missing from bitset mapping" );
    3282         990 :         VERIFY_TEST( q->ref_cnt>0UL, "account in transaction ref_cnt already 0" );
    3283         990 :         q->ref_cnt--;
    3284         990 :         total_references--;
    3285             : 
    3286         990 :         FD_PACK_BITSET_CLEAR( bit );
    3287         990 :         FD_PACK_BITSET_SETN( bit, q->bit );
    3288         990 :         if( q->bit<FD_PACK_BITSET_MAX ) {
    3289         597 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, cur->rw_bitset, cur->rw_bitset ), "missing from rw bitset" );
    3290         597 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, cur->w_bitset,  cur->w_bitset  ), "missing from w bitset" );
    3291         597 :         }
    3292         990 :         FD_PACK_BITSET_CLEARN( complement, q->bit );
    3293         990 :       }
    3294         423 :       VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( complement, complement, cur->w_bitset,  cur->w_bitset ), "extra in w bitset" );
    3295             : 
    3296         423 :       for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    3297        1836 :           iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3298             : 
    3299        1413 :         fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    3300        1413 :         if( FD_UNLIKELY( fd_pack_unwritable_contains( &acct ) ) ) continue;
    3301         894 :         fd_pack_bitset_acct_mapping_t * q = bitset_map_query( bitset_copy, acct, NULL );
    3302         894 :         VERIFY_TEST( q, "account in transaction missing from bitset mapping" );
    3303         894 :         VERIFY_TEST( q->ref_cnt>0UL, "account in transaction ref_cnt already 0" );
    3304         894 :         q->ref_cnt--;
    3305         894 :         total_references--;
    3306             : 
    3307         894 :         FD_PACK_BITSET_CLEAR( bit );
    3308         894 :         FD_PACK_BITSET_SETN( bit, q->bit );
    3309         894 :         if( q->bit<FD_PACK_BITSET_MAX ) {
    3310         879 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, cur->rw_bitset, cur->rw_bitset ), "missing from rw bitset" );
    3311         879 :         }
    3312         894 :         FD_PACK_BITSET_CLEARN( complement, q->bit );
    3313         894 :       }
    3314         423 :       VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( complement, complement, cur->rw_bitset,  cur->rw_bitset ), "extra in rw bitset" );
    3315         423 :     }
    3316        1305 :   }
    3317             : 
    3318         435 :   bitset_map_leave( bitset_copy );
    3319         435 :   VERIFY_TEST( txn_cnt==pack->pending_txn_cnt, "txn_cnt" );
    3320             : 
    3321         435 :   VERIFY_TEST( total_references==0UL, "extra references in bitset mapping" );
    3322         435 :   ulong sig2txn_key_cnt = 0UL;
    3323         435 :   for( sig2txn_iter_t iter = sig2txn_iter_init( pack->signature_map, pool );
    3324         858 :       !sig2txn_iter_done( iter, pack->signature_map, pool );
    3325         435 :       iter = sig2txn_iter_next( iter, pack->signature_map, pool ) ) {
    3326         423 :     sig2txn_key_cnt++;
    3327         423 :   }
    3328         435 :   VERIFY_TEST( txn_cnt==sig2txn_key_cnt, "extra signatures in sig2txn" );
    3329         435 :   VERIFY_TEST( !sig2txn_verify( pack->signature_map, trp_pool_max( pool ), pool ), "sig2txn corrupt" );
    3330             : 
    3331             :   /* Count noncemap keys */
    3332         435 :   ulong noncemap_key_cnt = 0UL;
    3333         435 :   for( noncemap_iter_t iter = noncemap_iter_init( pack->noncemap, pool );
    3334         483 :       !noncemap_iter_done( iter, pack->noncemap, pool );
    3335         435 :       iter = noncemap_iter_next( iter, pack->noncemap, pool ) ) {
    3336          48 :     noncemap_key_cnt++;
    3337             :     /* Ensure element is in pool */
    3338          48 :     fd_pack_ord_txn_t const * ord = noncemap_iter_ele_const( iter, pack->noncemap, pool );
    3339          48 :     VERIFY_TEST( ord->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE, "invalid entry in noncemap" );
    3340             : 
    3341             :     /* Although pack allows multiple transactions with the same
    3342             :        signature in sig2txn (MAP_MULTI==1), the noncemap checks prevent
    3343             :        multiple nonce transactions with the same signature. */
    3344          48 :     VERIFY_TEST( ord==sig2txn_ele_query_const( pack->signature_map, &ord->_txn_e, NULL, pool ), "noncemap and sig2txn desynced" );
    3345          48 :   }
    3346         435 :   VERIFY_TEST( txn_cnt>=noncemap_key_cnt, "phantom txns in noncemap" );
    3347         435 :   VERIFY_TEST( !noncemap_verify( pack->noncemap, trp_pool_max( pool ), pool ), "noncemap corrupt" );
    3348             : 
    3349         435 :   ulong slots_found = 0UL;
    3350         435 :   ulong const pool_max = trp_pool_max( pool );
    3351      459492 :   for( ulong i=0UL; i<pool_max; i++ ) {
    3352      459057 :     fd_pack_ord_txn_t * ord = pack->pool + i;
    3353      459057 :     if( ord->root!=FD_ORD_TXN_ROOT_FREE ) slots_found++;
    3354      459057 :   }
    3355         435 :   VERIFY_TEST( slots_found==txn_cnt, "phantom slots in pool" );
    3356             : 
    3357         435 :   bitset_map_join( _bitset_map_orig );
    3358             : 
    3359         435 :   int lg_uses_tbl_sz = acct_uses_lg_slot_cnt( pack->acct_in_use );
    3360             : 
    3361         435 :   void * _acct_in_use_copy = scratch;
    3362         435 :   void * _acct_in_use_orig = acct_uses_leave( pack->acct_in_use );
    3363         435 :   fd_memcpy( _acct_in_use_copy, _acct_in_use_orig, acct_uses_footprint( lg_uses_tbl_sz ) );
    3364             : 
    3365         435 :   fd_pack_addr_use_t * acct_in_use_copy = acct_uses_join( _acct_in_use_copy );
    3366             : 
    3367         435 :   FD_PACK_BITSET_DECLARE(  w_complement );
    3368         435 :   FD_PACK_BITSET_DECLARE( rw_complement );
    3369         435 :   FD_PACK_BITSET_COPY(  w_complement, full );
    3370         435 :   FD_PACK_BITSET_COPY( rw_complement, full );
    3371             : 
    3372         435 :   FD_PACK_BITSET_DECLARE( rw_bitset );  FD_PACK_BITSET_COPY( rw_bitset, pack->bitset_rw_in_use );
    3373         435 :   FD_PACK_BITSET_DECLARE(  w_bitset );  FD_PACK_BITSET_COPY(  w_bitset, pack->bitset_w_in_use  );
    3374             : 
    3375             : 
    3376         435 :   ulong const EMPTY_MASK = ~(FD_PACK_IN_USE_WRITABLE | FD_PACK_IN_USE_BIT_CLEARED);
    3377             : 
    3378       12240 :   for( ulong bank=0UL; bank<pack->bank_tile_cnt; bank++ ) {
    3379             : 
    3380       11805 :     fd_pack_addr_use_t const * base = pack->use_by_bank[ bank ];
    3381       11805 :     ulong bank_mask = 1UL << bank;
    3382             : 
    3383       12660 :     for( ulong i=0UL; i<pack->use_by_bank_cnt[ bank ]; i++ ) {
    3384         855 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use_copy, base[i].key, NULL );
    3385         855 :       VERIFY_TEST( use, "acct in use by bank not in acct_in_use, or in uses_by_bank twice" );
    3386             : 
    3387         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" );
    3388             : 
    3389         855 :       fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, base[i].key, NULL );
    3390             :       /* The normal case is that the acct->bit mapping is preserved
    3391             :          while in use by other transactions in the pending list.  This
    3392             :          might not always happen though.  It's okay for the mapping to
    3393             :          get deleted while the acct is in use, which is noted with
    3394             :          BIT_CLEARED.  If that is set, the mapping may not exist, or it
    3395             :          may have been re-created, perhaps with a different bit. */
    3396         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" );
    3397           0 :       else if( !(use->in_use_by & FD_PACK_IN_USE_BIT_CLEARED) ) {
    3398           0 :         FD_PACK_BITSET_CLEAR( bit );
    3399           0 :         FD_PACK_BITSET_SETN( bit, q->bit );
    3400           0 :         if( q->bit<FD_PACK_BITSET_MAX ) {
    3401           0 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, rw_bitset, rw_bitset ), "missing from rw bitset" );
    3402           0 :           if( use->in_use_by & FD_PACK_IN_USE_WRITABLE ) {
    3403           0 :             VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, w_bitset, w_bitset ), "missing from w bitset" );
    3404           0 :             FD_PACK_BITSET_CLEARN( w_complement, q->bit );
    3405           0 :           }
    3406           0 :         }
    3407           0 :         FD_PACK_BITSET_CLEARN( rw_complement, q->bit );
    3408           0 :       }
    3409         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" );
    3410             : 
    3411         855 :       use->in_use_by &= ~bank_mask;
    3412         855 :       if( !(use->in_use_by & EMPTY_MASK) ) acct_uses_remove( acct_in_use_copy, use );
    3413         855 :     }
    3414       11805 :   }
    3415         435 :   VERIFY_TEST( acct_uses_key_cnt( acct_in_use_copy )==0UL, "stray uses in acct_in_use" );
    3416         435 :   VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( rw_complement, rw_complement, rw_bitset,  rw_bitset ), "extra in rw bitset" );
    3417         435 :   VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY(  w_complement,  w_complement,  w_bitset,   w_bitset ), "extra in w bitset" );
    3418             : 
    3419         435 :   acct_uses_leave( acct_in_use_copy );
    3420             : 
    3421         435 :   acct_uses_join( _acct_in_use_orig );
    3422         435 :   return 0;
    3423         435 : }
    3424             : 
    3425           3 : void * fd_pack_leave ( fd_pack_t * pack ) { FD_COMPILER_MFENCE(); return (void *)pack; }
    3426           3 : void * fd_pack_delete( void      * mem  ) { FD_COMPILER_MFENCE(); return mem;          }

Generated by: LCOV version 1.14