LCOV - code coverage report
Current view: top level - disco/pack - fd_pack.c (source / functions) Hit Total Coverage
Test: cov.lcov Lines: 1490 1675 89.0 %
Date: 2025-11-24 04:44:38 Functions: 37 59 62.7 %

          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             : /* Declare a bunch of helper structs used for pack-internal data
      15             :    structures. */
      16             : typedef struct {
      17             :   fd_ed25519_sig_t sig;
      18             : } wrapped_sig_t;
      19             : 
      20             : /* fd_pack_ord_txn_t: An fd_txn_p_t with information required to order
      21             :    it by priority. */
      22             : struct fd_pack_private_ord_txn {
      23             :   /* It's important that there be no padding here (asserted below)
      24             :      because the code casts back and forth from pointers to this element
      25             :      to pointers to the whole struct. */
      26             :   union {
      27             :     fd_txn_p_t   txn[1];  /* txn is an alias for txn_e->txnp */
      28             :     fd_txn_e_t   txn_e[1];
      29             :     fd_txn_e_t   _txn_e;  /* Non-array type needed for map_chain */
      30             :     struct{ uchar _sig_cnt; wrapped_sig_t sig; };
      31             :   };
      32             : 
      33             :   /* Since this struct can be in one of several trees, it's helpful to
      34             :      store which tree.  This should be one of the FD_ORD_TXN_ROOT_*
      35             :      values. */
      36             :   int root;
      37             : 
      38             :   /* The sig2txn map_chain fields */
      39             :   ushort sigmap_next;
      40             :   ushort sigmap_prev;
      41             : 
      42             :   /* Each transaction is inserted with an expiration "time."  This code
      43             :      doesn't care about the units (blocks, rdtsc tick, ns, etc.), and
      44             :      doesn't require transactions to be inserted in expiration date
      45             :      order. */
      46             :   ulong expires_at;
      47             :   /* expq_idx: When this object is part of one of the treaps, it's
      48             :      also in the expiration priority queue.  This field (which is
      49             :      manipulated behind the scenes by the fd_prq code) stores where so
      50             :      that if we delete this transaction, we can also delete it from the
      51             :      expiration priority queue. */
      52             :   ulong expq_idx;
      53             : 
      54             :   /* The noncemap map_chain fields */
      55             :   ushort noncemap_next;
      56             :   ushort noncemap_prev;
      57             : 
      58             :   /* We want rewards*compute_est to fit in a ulong so that r1/c1 < r2/c2 can be
      59             :      computed as r1*c2 < r2*c1, with the product fitting in a ulong.
      60             :      compute_est has a small natural limit of mid-20 bits. rewards doesn't have
      61             :      a natural limit, so there is some argument to be made for raising the
      62             :      limit for rewards to 40ish bits. The struct has better packing with
      63             :      uint/uint though. */
      64             :   uint                __attribute__((aligned(64))) /* We want the treap fields and the bitsets
      65             :                                                        to be on the same double cache line pair */
      66             :                rewards;     /* in Lamports */
      67             :   uint         compute_est; /* in compute units */
      68             : 
      69             :   /* The treap fields */
      70             :   ushort left;
      71             :   ushort right;
      72             :   ushort parent;
      73             :   ushort prio;
      74             :   ushort prev;
      75             :   ushort next;
      76             : 
      77             :   /* skip: if we skip this transaction more than FD_PACK_SKIP_CNT times
      78             :      for reasons that won't go away until the end of the block, then we
      79             :      want to skip it very quickly.  If skip is in [1, FD_PACK_SKIP_CNT],
      80             :      then that means we have to skip it `skip` more times before taking
      81             :      any action.  If skip>FD_PACK_SKIP_CNT, then it is a compressed slot
      82             :      number during which it should be skipped, and we'll skip it until
      83             :      the compressed slot reaches a new value.  skip is never 0. */
      84             :   ushort skip;
      85             : 
      86             :   FD_PACK_BITSET_DECLARE( rw_bitset ); /* all accts this txn references */
      87             :   FD_PACK_BITSET_DECLARE(  w_bitset ); /* accts this txn write-locks    */
      88             : 
      89             : };
      90             : typedef struct fd_pack_private_ord_txn fd_pack_ord_txn_t;
      91             : 
      92             : /* What we want is that the payload starts at byte 0 of
      93             :    fd_pack_ord_txn_t so that the trick with the signature map works
      94             :    properly.  GCC and Clang seem to disagree on the rules of offsetof.
      95             :    */
      96             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, txn          )==0UL, fd_pack_ord_txn_t );
      97             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, sig          )==1UL, fd_pack_ord_txn_t );
      98             : #if FD_USING_CLANG
      99             : FD_STATIC_ASSERT( offsetof( fd_txn_p_t,             payload )==0UL, fd_pack_ord_txn_t );
     100             : #else
     101             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, txn->payload )==0UL, fd_pack_ord_txn_t );
     102             : FD_STATIC_ASSERT( offsetof( fd_pack_ord_txn_t, txn_e->txnp  )==0UL, fd_pack_ord_txn_t );
     103             : #endif
     104             : 
     105             : /* FD_ORD_TXN_ROOT is essentially a small union packed into an int.  The low
     106             :    byte is the "tag".  The higher 3 bytes depend on the low byte. */
     107     4452279 : #define FD_ORD_TXN_ROOT_TAG_MASK        0xFF
     108    19658097 : #define FD_ORD_TXN_ROOT_FREE            0
     109    18006464 : #define FD_ORD_TXN_ROOT_PENDING         1
     110    13276434 : #define FD_ORD_TXN_ROOT_PENDING_VOTE    2
     111        1065 : #define FD_ORD_TXN_ROOT_PENDING_BUNDLE  3
     112      328987 : #define FD_ORD_TXN_ROOT_PENALTY( idx ) (4 | (idx)<<8)
     113             : 
     114             : /* if root & TAG_MASK == PENALTY, then PENALTY_ACCT_IDX(root) gives the index
     115             :    in the transaction's list of account addresses of which penalty treap the
     116             :    transaction is in. */
     117             : #define FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( root ) (((root) & 0xFF00)>>8)
     118             : 
     119    28433904 : #define FD_PACK_IN_USE_WRITABLE    (0x8000000000000000UL)
     120    15386217 : #define FD_PACK_IN_USE_BIT_CLEARED (0x4000000000000000UL)
     121             : 
     122             : /* Each non-empty microblock we schedule also has an overhead of 48
     123             :    bytes that counts towards shed limits.  That comes from the 32 byte
     124             :    hash, the hash count (8 bytes) and the transaction count (8 bytes).
     125             :    We don't have to pay this overhead if the microblock is empty, since
     126             :    those microblocks get dropped. */
     127     1505856 : #define MICROBLOCK_DATA_OVERHEAD 48UL
     128             : 
     129             : /* Keep track of accounts that are written to in each block so that we
     130             :    can reset the writer costs to 0.  If the number of accounts that are
     131             :    written to is above or equal to this, we'll just clear the whole
     132             :    writer cost map instead of only removing the elements we increased. */
     133        1368 : #define DEFAULT_WRITTEN_LIST_MAX 16384UL
     134             : 
     135             : FD_STATIC_ASSERT( sizeof(fd_acct_addr_t)==sizeof(fd_pubkey_t), "" );
     136             : 
     137             : /* fd_pack_expq_t: An element of an fd_prq to sort the transactions by
     138             :    timeout.  This structure has several invariants for entries
     139             :    corresponding to pending transactions:
     140             :      expires_at == txn->expires_at
     141             :      txn->exp_prq_idx is the index of this structure
     142             :    Notice that prq is an array-based heap, which means the indexes of
     143             :    elements change.  The PRQ_TMP_ST macro is hijacked to keep that
     144             :    invariant up to date.
     145             : 
     146             :    Note: this could be easier if fd_heap supported deleting from the
     147             :    middle, but that's not possible with the current design of fd_heap,
     148             :    which omits a parent pointer for improved performance. */
     149             : struct fd_pack_expq {
     150             :   ulong               expires_at;
     151             :   fd_pack_ord_txn_t * txn;
     152             : };
     153             : typedef struct fd_pack_expq fd_pack_expq_t;
     154             : 
     155             : 
     156             : /* fd_pack_bitset_acct_mapping_t: An element of an fd_map_dynamic that
     157             :    maps an account address to the number of transactions that are
     158             :    referencing it and the bit that is reserved to indicate it in the
     159             :    bitset, if any. */
     160             : struct fd_pack_bitset_acct_mapping {
     161             :   fd_acct_addr_t key; /* account address */
     162             :   ulong          ref_cnt;
     163             : 
     164             :   /* first_instance and first_instance_was_write are only valid when
     165             :      bit==FD_PACK_BITSET_FIRST_INSTANCE, which is set when ref_cnt
     166             :      transitions from 0 to 1.  These just exist to implement the
     167             :      optimization that accounts referenced a single time aren't
     168             :      allocated a bit, but this seems to be an important optimization. */
     169             :   fd_pack_ord_txn_t * first_instance;
     170             :   int                 first_instance_was_write;
     171             : 
     172             :   /* bit is in [0, FD_PACK_BITSET_MAX) U
     173             :      { FD_PACK_BITSET_FIRST_INSTANCE, FD_PACK_BITSET_SLOWPATH }. */
     174             :   ushort              bit;
     175             : };
     176             : typedef struct fd_pack_bitset_acct_mapping fd_pack_bitset_acct_mapping_t;
     177             : 
     178             : 
     179             : 
     180             : /* pack maintains a small state machine related to initializer bundles.
     181             :    See the header file for more details about it, but it's
     182             :    also summarized here:
     183             :    * NOT_INITIALIZED: The starting state for each block
     184             :    * PENDING: an initializer bundle has been scheduled, but pack has
     185             :      not observed its result yet, so we don't know if it was successful
     186             :      or not.
     187             :    * FAILED: the most recently scheduled initializer bundle failed
     188             :      for reasons other than already being executed.  Most commonly, this
     189             :      could be because of a bug in the code that generated the
     190             :      initializer bundle, a lack of fee payer balance, or an expired
     191             :      blockhash.
     192             :    * READY: the most recently scheduled initialization bundle succeeded
     193             :      and normal bundles can be scheduled in this slot. */
     194        2646 : #define FD_PACK_IB_STATE_NOT_INITIALIZED 0
     195           0 : #define FD_PACK_IB_STATE_PENDING         1
     196           0 : #define FD_PACK_IB_STATE_FAILED          2
     197           3 : #define FD_PACK_IB_STATE_READY           3
     198             : 
     199             : 
     200             : /* Returns 1 if x.rewards/x.compute < y.rewards/y.compute. Not robust. */
     201    84572152 : #define COMPARE_WORSE(x,y) ( ((ulong)((x)->rewards)*(ulong)((y)->compute_est)) < ((ulong)((y)->rewards)*(ulong)((x)->compute_est)) )
     202             : 
     203             : /* Declare all the data structures */
     204             : 
     205             : 
     206             : /* Define the big max-"heap" that we pull transactions off to schedule.
     207             :    The priority is given by reward/compute.  We may want to add in some
     208             :    additional terms at a later point.  In order to cheaply remove nodes,
     209             :    we actually use a treap.  */
     210             : #define POOL_NAME       trp_pool
     211        1584 : #define POOL_T          fd_pack_ord_txn_t
     212             : #define POOL_IDX_T      ushort
     213    29596146 : #define POOL_NEXT       parent
     214             : #include "../../util/tmpl/fd_pool.c"
     215             : 
     216             : #define TREAP_T         fd_pack_ord_txn_t
     217             : #define TREAP_NAME      treap
     218             : #define TREAP_QUERY_T   void *                                         /* We don't use query ... */
     219             : #define TREAP_CMP(a,b)  (__extension__({ (void)(a); (void)(b); -1; })) /* which means we don't need to give a real
     220             :                                                                           implementation to cmp either */
     221   180627231 : #define TREAP_IDX_T     ushort
     222             : #define TREAP_OPTIMIZE_ITERATION 1
     223    84572152 : #define TREAP_LT        COMPARE_WORSE
     224             : #include "../../util/tmpl/fd_treap.c"
     225             : 
     226             : 
     227             : #define MAP_NAME              sig2txn
     228             : #define MAP_OPTIMIZE_RANDOM_ACCESS_REMOVAL 1
     229             : #define MAP_MULTI              1
     230    13581621 : #define MAP_ELE_T              fd_pack_ord_txn_t
     231    36577778 : #define MAP_PREV               sigmap_prev
     232    35013276 : #define MAP_NEXT               sigmap_next
     233    13584988 : #define MAP_IDX_T              ushort
     234             : #define MAP_KEY_T              wrapped_sig_t
     235    26652889 : #define MAP_KEY                sig
     236        1088 : #define MAP_KEY_EQ(k0,k1)      (!memcmp( (k0),(k1), FD_TXN_SIGNATURE_SZ) )
     237    26653963 : #define MAP_KEY_HASH(key,seed) fd_hash( (seed), (key), 64UL )
     238             : #include "../../util/tmpl/fd_map_chain.c"
     239             : 
     240             : 
     241             : /* noncemap: A map from (nonce account, nonce authority, recent
     242             :    blockhash) to a durable nonce transaction containing it.  We only
     243             :    want to allow one transaction in the pool at a time with a given
     244             :    (nonce account, recent blockhash) tuple value.  The question is: can
     245             :    adding this limitation cause us to throw out potentially valuable
     246             :    transaction?  The answer is yes, but only very rarely, and the
     247             :    savings are worth it.  Suppose we have durable nonce transactions t1
     248             :    and t2 that advance the same nonce account and have the same value
     249             :    for the recent blockhash.
     250             : 
     251             :    - If t1 lands on chain, then it will advance the nonce account, and
     252             :    t2 will certainly not land on chain.
     253             :    - If t1 fails with AlreadyExecuted, that means the nonce account was
     254             :    advanced when t1 landed in a previous block, so t2 will certainly not
     255             :    land on chain.
     256             :    - If t1 fails with BlockhashNotFound, then the nonce account was
     257             :    advanced in some previous transaction, so again, t2 will certainly
     258             :    not land on chain.
     259             :    - If t1 does not land on chain because of an issue with the fee
     260             :    payer, it's possible that t2 could land on chain if it used a
     261             :    different fee payer, but historical data shows this is unlikely.
     262             :    - If t1 does not land on chain because it is part of a bundle that
     263             :    fails for an unrelated reason, it's possible that t2 could land on
     264             :    chain, but again, historical data says this is rare.
     265             : 
     266             :    We need to include the nonce authority in the hash to prevent one
     267             :    user from being able to DoS another user. */
     268             : 
     269             : typedef struct {
     270             :   uchar const * recent_blockhash;
     271             :   fd_acct_addr_t const * nonce_acct;
     272             :   fd_acct_addr_t const * nonce_auth;
     273             : } noncemap_extract_t;
     274             : 
     275             : /* k must be a valid, durable nonce transaction.  No error checking is
     276             :    done. */
     277             : static inline void
     278             : noncemap_extract( fd_txn_e_t const   * k,
     279        3378 :                   noncemap_extract_t * out ) {
     280        3378 :   fd_txn_t const * txn = TXN(k->txnp);
     281        3378 :   out->recent_blockhash = fd_txn_get_recent_blockhash( txn, k->txnp->payload );
     282             : 
     283        3378 :   ulong nonce_idx = k->txnp->payload[ txn->instr[ 0 ].acct_off+0 ];
     284        3378 :   ulong autho_idx = k->txnp->payload[ txn->instr[ 0 ].acct_off+2 ];
     285             : 
     286        3378 :   ulong imm_cnt = fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
     287        3378 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, k->txnp->payload );
     288        3378 :   fd_acct_addr_t const * alt_adj = k->alt_accts - imm_cnt;
     289        3378 :   out->nonce_acct = fd_ptr_if( nonce_idx<imm_cnt, accts, alt_adj )+nonce_idx;
     290             :   /* The nonce authority must be a signer, so it must be an immediate
     291             :      account. */
     292        3378 :   out->nonce_auth = accts+autho_idx;
     293        3378 : }
     294             : 
     295             : static inline int
     296             : noncemap_key_eq_internal( fd_txn_e_t const * k0,
     297         171 :                           fd_txn_e_t const * k1 ) {
     298         171 :   noncemap_extract_t e0[1], e1[1];
     299         171 :   noncemap_extract( k0, e0 );
     300         171 :   noncemap_extract( k1, e1 );
     301             : 
     302         171 :   if( FD_UNLIKELY( memcmp( e0->recent_blockhash, e1->recent_blockhash, 32UL ) ) ) return 0;
     303          63 :   if( FD_UNLIKELY( memcmp( e0->nonce_acct,       e1->nonce_acct,       32UL ) ) ) return 0;
     304          63 :   if( FD_UNLIKELY( memcmp( e0->nonce_auth,       e1->nonce_auth,       32UL ) ) ) return 0;
     305          63 :   return 1;
     306          63 : }
     307             : 
     308             : static inline ulong
     309             : noncemap_key_hash_internal( ulong              seed,
     310        3036 :                             fd_txn_e_t const * k ) {
     311             :   /* TODO: This takes >100 cycles! */
     312        3036 :   noncemap_extract_t e[1];
     313        3036 :   noncemap_extract( k, e );
     314        3036 :   return fd_hash( seed,              e->recent_blockhash, 32UL ) ^
     315        3036 :          fd_hash( seed+ 864394383UL, e->nonce_acct,       32UL ) ^
     316        3036 :          fd_hash( seed+3818662446UL, e->nonce_auth,       32UL );
     317        3036 : }
     318             : 
     319             : #define MAP_NAME               noncemap
     320             : #define MAP_OPTIMIZE_RANDOM_ACCESS_REMOVAL 1
     321             : #define MAP_MULTI              0
     322         375 : #define MAP_ELE_T              fd_pack_ord_txn_t
     323         558 : #define MAP_PREV               noncemap_prev
     324        1073 : #define MAP_NEXT               noncemap_next
     325        4191 : #define MAP_IDX_T              ushort
     326             : #define MAP_KEY_T              fd_txn_e_t
     327         756 : #define MAP_KEY                _txn_e
     328         171 : #define MAP_KEY_EQ(k0,k1)      noncemap_key_eq_internal( (k0), (k1) )
     329        3036 : #define MAP_KEY_HASH(key,seed) noncemap_key_hash_internal( (seed), (key) )
     330             : #include "../../util/tmpl/fd_map_chain.c"
     331             : 
     332             : 
     333             : static const fd_acct_addr_t null_addr = { 0 };
     334             : 
     335             : #define MAP_NAME              acct_uses
     336    94457147 : #define MAP_T                 fd_pack_addr_use_t
     337   111453182 : #define MAP_KEY_T             fd_acct_addr_t
     338   331770398 : #define MAP_KEY_NULL          null_addr
     339             : #if FD_HAS_AVX
     340   111453182 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     341             : #else
     342             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     343             : #endif
     344    77439912 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     345             : #define MAP_KEY_EQUAL_IS_SLOW 1
     346             : #define MAP_MEMOIZE           0
     347    94463413 : #define MAP_KEY_HASH(key,s)   ((uint)fd_ulong_hash( fd_ulong_load_8( (key).b ) ))
     348             : #include "../../util/tmpl/fd_map_dynamic.c"
     349             : 
     350             : 
     351             : #define MAP_NAME              bitset_map
     352    52410203 : #define MAP_T                 fd_pack_bitset_acct_mapping_t
     353    65749335 : #define MAP_KEY_T             fd_acct_addr_t
     354   873983672 : #define MAP_KEY_NULL          null_addr
     355             : #if FD_HAS_AVX
     356  1655030103 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     357             : #else
     358             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     359             : #endif
     360    39107958 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     361             : #define MAP_KEY_EQUAL_IS_SLOW 1
     362             : #define MAP_MEMOIZE           0
     363    52437313 : #define MAP_KEY_HASH(key,s)   ((uint)fd_ulong_hash( fd_ulong_load_8( (key).b ) ))
     364             : #include "../../util/tmpl/fd_map_dynamic.c"
     365             : 
     366             : 
     367             : /* Since transactions can also expire, we also maintain a parallel
     368             :    priority queue.  This means elements are simultaneously part of the
     369             :    treap (ordered by priority) and the expiration queue (ordered by
     370             :    expiration).  It's tempting to use the priority field of the treap
     371             :    for this purpose, but that can result in degenerate treaps in some
     372             :    cases. */
     373             : #define PRQ_NAME             expq
     374    32826046 : #define PRQ_T                fd_pack_expq_t
     375    27147834 : #define PRQ_TIMEOUT_T        ulong
     376    27147834 : #define PRQ_TIMEOUT          expires_at
     377    15889862 : #define PRQ_TMP_ST(p,t)      do {                                   \
     378    15889862 :                                (p)[0] = (t);                        \
     379    15889862 :                                t.txn->expq_idx = (ulong)((p)-heap); \
     380    15889862 :                              } while( 0 )
     381             : #include "../../util/tmpl/fd_prq.c"
     382             : 
     383             : /* With realistic traffic patterns, we often see many, many transactions
     384             :    competing for the same writable account.  Since only one of these can
     385             :    execute at a time, we sometimes waste lots of scheduling time going
     386             :    through them one at a time.  To combat that, when a transaction
     387             :    writes to an account with more than PENALTY_TREAP_THRESHOLD
     388             :    references (readers or writers), instead of inserting it into the
     389             :    main treap, we insert it into a penalty treap for that specific hot
     390             :    account address.  These transactions are not immediately available
     391             :    for scheduling.  Then, when a transaction that writes to the hot
     392             :    address completes, we move the most lucrative transaction from the
     393             :    penalty treap to the main treap, making it available for scheduling.
     394             :    This policy may slightly violate the price-time priority scheduling
     395             :    approach pack normally uses: if the most lucrative transaction
     396             :    competing for hot state arrives after PENALTY_TREAP_THRESHOLD has
     397             :    been hit, it may be scheduled second instead of first.  However, if
     398             :    the account is in use at the time the new transaction arrives, it
     399             :    will be scheduled next, as desired.  This minor difference seems
     400             :    reasonable to reduce complexity.
     401             : 
     402             :    fd_pack_penalty_treap is one account-specific penalty treap.  All the
     403             :    transactions in the penalty_treap treap write to key.
     404             : 
     405             :    penalty_map is the fd_map_dynamic that maps accounts to their
     406             :    respective penalty treaps. */
     407             : struct fd_pack_penalty_treap {
     408             :   fd_acct_addr_t key;
     409             :   treap_t penalty_treap[1];
     410             : };
     411             : typedef struct fd_pack_penalty_treap fd_pack_penalty_treap_t;
     412             : 
     413             : #define MAP_NAME              penalty_map
     414     4235857 : #define MAP_T                 fd_pack_penalty_treap_t
     415     4237701 : #define MAP_KEY_T             fd_acct_addr_t
     416    13450965 : #define MAP_KEY_NULL          null_addr
     417             : #if FD_HAS_AVX
     418    29070213 : # define MAP_KEY_INVAL(k)     _mm256_testz_si256( wb_ldu( (k).b ), wb_ldu( (k).b ) )
     419             : #else
     420             : # define MAP_KEY_INVAL(k)     MAP_KEY_EQUAL(k, null_addr)
     421             : #endif
     422     4231899 : #define MAP_KEY_EQUAL(k0,k1)  (!memcmp((k0).b,(k1).b, FD_TXN_ACCT_ADDR_SZ))
     423             : #define MAP_KEY_EQUAL_IS_SLOW 1
     424             : #define MAP_MEMOIZE           0
     425     4234798 : #define MAP_KEY_HASH(key,s)   ((uint)fd_ulong_hash( fd_ulong_load_8( (key).b ) ))
     426             : #include "../../util/tmpl/fd_map_dynamic.c"
     427             : 
     428             : /* PENALTY_TREAP_THRESHOLD: How many references to an account do we
     429             :    allow before subsequent transactions that write to the account go to
     430             :    the penalty treap. */
     431    29528580 : #define PENALTY_TREAP_THRESHOLD 64UL
     432             : 
     433             : 
     434             : /* FD_PACK_SKIP_CNT: How many times we'll skip a transaction (for
     435             :    reasons other than account conflicts) before we won't consider it
     436             :    until the next slot.  For performance reasons, this doesn't reset at
     437             :    the end of a slot, so e.g. we might skip twice in slot 1, then three
     438             :    times in slot 2, which would be enough to prevent considering it
     439             :    until slot 3.  The main reason this is not 1 is that some skips that
     440             :    seem permanent until the end of the slot can actually go away based
     441             :    on rebates. */
     442    13584573 : #define FD_PACK_SKIP_CNT 50UL
     443             : 
     444             : /* Finally, we can now declare the main pack data structure */
     445             : struct fd_pack_private {
     446             :   ulong      pack_depth;
     447             :   ulong      bundle_meta_sz; /* if 0, bundles are disabled */
     448             :   ulong      bank_tile_cnt;
     449             : 
     450             :   fd_pack_limits_t lim[1];
     451             : 
     452             :   ulong      pending_txn_cnt; /* Summed across all treaps */
     453             :   ulong      microblock_cnt; /* How many microblocks have we
     454             :                                 generated in this block? */
     455             :   ulong      data_bytes_consumed; /* How much data is in this block so
     456             :                                      far ? */
     457             : 
     458             :   /* counters / gauge for schedule outcome enums */
     459             :   ulong      sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_CNT ];
     460             : 
     461             :   fd_rng_t * rng;
     462             : 
     463             :   ulong      cumulative_block_cost;
     464             :   ulong      cumulative_vote_cost;
     465             : 
     466             :   /* expire_before: Any transactions with expires_at strictly less than
     467             :      the current expire_before are removed from the available pending
     468             :      transaction.  Here, "expire" is used as a verb: cause all
     469             :      transactions before this time to expire. */
     470             :   ulong      expire_before;
     471             : 
     472             :   /* outstanding_microblock_mask: a bitmask indicating which banking
     473             :      tiles have outstanding microblocks, i.e. fd_pack has generated a
     474             :      microblock for that banking tile and the banking tile has not yet
     475             :      notified fd_pack that it has completed it. */
     476             :   ulong      outstanding_microblock_mask;
     477             : 
     478             :   /* The actual footprint for the pool and maps is allocated
     479             :      in the same order in which they are declared immediately following
     480             :      the struct.  I.e. these pointers point to memory not far after the
     481             :      struct.  The trees are just pointers into the pool so don't take up
     482             :      more space. */
     483             : 
     484             :   fd_pack_ord_txn_t * pool;
     485             : 
     486             :   /* Treaps (sorted by priority) of pending transactions.  We store the
     487             :      pending simple votes and transactions that come from bundles
     488             :      separately. */
     489             :   treap_t pending[1];
     490             :   treap_t pending_votes[1];
     491             :   treap_t pending_bundles[1];
     492             : 
     493             :   /* penalty_treaps: an fd_map_dynamic mapping hotly contended account
     494             :      addresses to treaps of transactions that write to them.  We try not
     495             :      to allow more than roughly PENALTY_TREAP_THRESHOLD transactions in
     496             :      the main treap that write to each account, though this is not
     497             :      exact. */
     498             :   fd_pack_penalty_treap_t * penalty_treaps;
     499             : 
     500             :   /* initializer_bundle_state: The current state of the initialization
     501             :      bundle state machine.  One of the FD_PACK_IB_STATE_* values.  See
     502             :      the long comment in the header and the comments attached to the
     503             :      respective values for a discussion of what each state means and the
     504             :      transitions between them. */
     505             :   int   initializer_bundle_state;
     506             : 
     507             :   /* relative_bundle_idx: the number of bundles that have been inserted
     508             :      since the last time pending_bundles was empty.  See the long
     509             :      comment about encoding this index in the rewards field of each
     510             :      transaction in the bundle, and why it is important that this reset
     511             :      to 0 as frequently as possible. */
     512             :   ulong relative_bundle_idx;
     513             : 
     514             :   /* pending{_votes}_smallest: keep a conservative estimate of the
     515             :      smallest transaction (by cost units and by bytes) in each heap.
     516             :      Both CUs and bytes should be set to ULONG_MAX is the treap is
     517             :      empty. */
     518             :   fd_pack_smallest_t pending_smallest[1];
     519             :   fd_pack_smallest_t pending_votes_smallest[1];
     520             : 
     521             :   /* expiration_q: At the same time that a transaction is in exactly one
     522             :      of the above treaps, it is also in the expiration queue, sorted by
     523             :      its expiration time.  This enables deleting all transactions that
     524             :      have expired, regardless of which treap they are in. */
     525             :   fd_pack_expq_t * expiration_q;
     526             : 
     527             :   /* acct_in_use: Map from account address to bitmask indicating which
     528             :      bank tiles are using the account and whether that use is read or
     529             :      write (msb). */
     530             :   fd_pack_addr_use_t   * acct_in_use;
     531             : 
     532             :   /* bitset_{w, rw}_in_use stores a subset of the information in
     533             :      acct_in_use using the compressed set format explained at the top of
     534             :      this file.  rw_in_use stores accounts in use for read or write
     535             :      while w_in_use stores only those in use for write. */
     536             :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
     537             :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
     538             : 
     539             :   /* writer_costs: Map from account addresses to the sum of costs of
     540             :      transactions that write to the account.  Used for enforcing limits
     541             :      on the max write cost per account per block. */
     542             :   fd_pack_addr_use_t   * writer_costs;
     543             : 
     544             :   /* top_writers: A simple max heap of the top 5 writers in the slot,
     545             :      used by downstream consumers for monitoring purposes. */
     546             :   fd_pack_addr_use_t top_writers[ FD_PACK_TOP_WRITERS_CNT ];
     547             : 
     548             :   /* At the end of every slot, we have to clear out writer_costs.  The
     549             :      map is large, but typically very sparsely populated.  As an
     550             :      optimization, we keep track of the elements of the map that we've
     551             :      actually used, up to a maximum.  If we use more than the maximum,
     552             :      we revert to the old way of just clearing the whole map.
     553             : 
     554             :      written_list indexed [0, written_list_cnt).
     555             :      written_list_cnt in  [0, written_list_max).
     556             : 
     557             :      written_list_cnt==written_list_max-1 means that the list may be
     558             :      incomplete and should be ignored. */
     559             :   fd_pack_addr_use_t * * written_list;
     560             :   ulong                  written_list_cnt;
     561             :   ulong                  written_list_max;
     562             : 
     563             :   /* Noncemap is a map_chain that maps from tuples (nonce account,
     564             :      recent blockhash value, nonce authority) to a transaction.  This
     565             :      map stores exactly the transactions in pool that have the nonce
     566             :      flag set. */
     567             :   noncemap_t * noncemap;
     568             : 
     569             :   sig2txn_t * signature_map; /* Stores pointers into pool for deleting by signature */
     570             : 
     571             :   /* bundle_temp_map: A fd_map_dynamic (although it could be an fd_map)
     572             :      used during fd_pack_try_schedule_bundle to store information about
     573             :      what accounts are used by transactions in the bundle.  It's empty
     574             :      (in a map sense) outside of calls to try_schedule_bundle, and each
     575             :      call to try_schedule_bundle clears it after use.  If bundles are
     576             :      disabled, this is a valid fd_map_dynamic, but it's as small as
     577             :      convenient and remains empty. */
     578             :   fd_pack_addr_use_t * bundle_temp_map;
     579             : 
     580             : 
     581             :   /* use_by_bank: An array of size (max_txn_per_microblock *
     582             :      FD_TXN_ACCT_ADDR_MAX) for each banking tile.  Only the MSB of
     583             :      in_use_by is relevant.  Addressed use_by_bank[i][j] where i is in
     584             :      [0, bank_tile_cnt) and j is in [0, use_by_bank_cnt[i]).  Used
     585             :      mostly for clearing the proper bits of acct_in_use when a
     586             :      microblock finishes.
     587             : 
     588             :      use_by_bank_txn: indexed [i][j], where i is in [0, bank_tile_cnt)
     589             :      and j is in [0, max_txn_per_microblock).  Transaction j in the
     590             :      microblock currently scheduled to bank i uses account addresses in
     591             :      use_by_bank[i][k] where k is in [0, use_by_bank[i][j]).  For
     592             :      example, if use_by_bank[i][0] = 2 and use_by_bank[i][1] = 3, then
     593             :      all the accounts that the first transaction in the outstanding
     594             :      microblock for bank 0 uses are contained in the set
     595             :                { use_by_bank[i][0], use_by_bank[i][1] },
     596             :      and all the accounts in the second transaction in the microblock
     597             :      are in the set
     598             :         { use_by_bank[i][0], use_by_bank[i][1], use_by_bank[i][2] }.
     599             :      Each transaction writes to at least one account (the fee payer)
     600             :      that no other transaction scheduled to the bank uses, which means
     601             :      that use_by_bank_txn[i][j] - use_by_bank_txn[i][j-1] >= 1 (with 0
     602             :      for use_by_bank_txn[i][-1]).  This means we can stop iterating when
     603             :      use_by_bank_txn[i][j] == use_by_bank_cnt[i].  */
     604             :   fd_pack_addr_use_t * use_by_bank    [ FD_PACK_MAX_BANK_TILES ];
     605             :   ulong                use_by_bank_cnt[ FD_PACK_MAX_BANK_TILES ];
     606             :   ulong *              use_by_bank_txn[ FD_PACK_MAX_BANK_TILES ];
     607             : 
     608             :   fd_histf_t txn_per_microblock [ 1 ];
     609             :   fd_histf_t vote_per_microblock[ 1 ];
     610             : 
     611             :   fd_histf_t scheduled_cus_per_block[ 1 ];
     612             :   fd_histf_t rebated_cus_per_block  [ 1 ];
     613             :   fd_histf_t net_cus_per_block      [ 1 ];
     614             :   fd_histf_t pct_cus_per_block      [ 1 ];
     615             :   ulong      cumulative_rebated_cus;
     616             : 
     617             : 
     618             :   /* compressed_slot_number: a number in (FD_PACK_SKIP_CNT, USHORT_MAX]
     619             :      that advances each time we start packing for a new slot. */
     620             :   ushort     compressed_slot_number;
     621             : 
     622             :   /* bitset_avail: a stack of which bits are not currently reserved and
     623             :      can be used to represent an account address.
     624             :      Indexed [0, bitset_avail_cnt].  Element 0 is fixed at
     625             :      FD_PACK_BITSET_SLOWPATH. */
     626             :   ushort bitset_avail[ 1UL+FD_PACK_BITSET_MAX ];
     627             :   ulong  bitset_avail_cnt;
     628             : 
     629             :   /* acct_to_bitset: an fd_map_dynamic that maps acct addresses to the
     630             :      reference count, which bit, etc. */
     631             :   fd_pack_bitset_acct_mapping_t * acct_to_bitset;
     632             : 
     633             :   /* chdkup: scratch memory chkdup needs for its internal processing */
     634             :   fd_chkdup_t chkdup[ 1 ];
     635             : 
     636             :   /* bundle_meta: an array, parallel to the pool, with each element
     637             :      having size bundle_meta_sz.  I.e. if pool[i] has an associated
     638             :      bundle meta, it's located at bundle_meta[j] for j in
     639             :      [i*bundle_meta_sz, (i+1)*bundle_meta_sz). */
     640             :   void * bundle_meta;
     641             : };
     642             : 
     643             : typedef struct fd_pack_private fd_pack_t;
     644             : 
     645             : FD_STATIC_ASSERT( offsetof(fd_pack_t, pending_txn_cnt)==FD_PACK_PENDING_TXN_CNT_OFF, txn_cnt_off );
     646             : 
     647             : /* Forward-declare some helper functions */
     648             : static ulong delete_transaction( fd_pack_t * pack, fd_pack_ord_txn_t * txn, int delete_full_bundle, int move_from_penalty_treap );
     649             : 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 );
     650             : 
     651             : FD_FN_PURE ulong
     652             : fd_pack_footprint( ulong                    pack_depth,
     653             :                    ulong                    bundle_meta_sz,
     654             :                    ulong                    bank_tile_cnt,
     655         312 :                    fd_pack_limits_t const * limits         ) {
     656         312 :   if( FD_UNLIKELY( (bank_tile_cnt==0) | (bank_tile_cnt>FD_PACK_MAX_BANK_TILES) ) ) return 0UL;
     657         312 :   if( FD_UNLIKELY( pack_depth<4UL ) ) return 0UL;
     658             : 
     659         312 :   int enable_bundles = !!bundle_meta_sz;
     660         312 :   ulong l;
     661         312 :   ulong extra_depth        = fd_ulong_if( enable_bundles, 1UL+2UL*FD_PACK_MAX_TXN_PER_BUNDLE, 1UL ); /* space for use between init and fini */
     662         312 :   ulong max_acct_in_treap  = pack_depth * FD_TXN_ACCT_ADDR_MAX;
     663         312 :   ulong max_txn_per_mblk   = fd_ulong_max( limits->max_txn_per_microblock,
     664         312 :                                            fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE, 0UL ) );
     665         312 :   ulong max_acct_in_flight = bank_tile_cnt * (FD_TXN_ACCT_ADDR_MAX * max_txn_per_mblk + 1UL);
     666         312 :   ulong max_txn_in_flight  = bank_tile_cnt * max_txn_per_mblk;
     667             : 
     668         312 :   ulong max_w_per_block    = fd_ulong_min( limits->max_cost_per_block / FD_PACK_COST_PER_WRITABLE_ACCT,
     669         312 :                                            max_txn_per_mblk * limits->max_microblocks_per_block * FD_TXN_ACCT_ADDR_MAX );
     670         312 :   ulong written_list_max   = fd_ulong_min( max_w_per_block>>1, DEFAULT_WRITTEN_LIST_MAX );
     671         312 :   ulong bundle_temp_accts  = fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE*FD_TXN_ACCT_ADDR_MAX, 1UL );
     672         312 :   ulong sig_chain_cnt      = sig2txn_chain_cnt_est( pack_depth );
     673         312 :   ulong nonce_chain_cnt    = noncemap_chain_cnt_est( pack_depth );
     674             : 
     675             :   /* log base 2, but with a 2* so that the hash table stays sparse */
     676         312 :   int lg_uses_tbl_sz = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_flight                        ) );
     677         312 :   int lg_max_writers = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_w_per_block                           ) );
     678         312 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap                         ) );
     679         312 :   int lg_penalty_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap/PENALTY_TREAP_THRESHOLD ) );
     680         312 :   int lg_bundle_temp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*bundle_temp_accts                         ) );
     681             : 
     682         312 :   l = FD_LAYOUT_INIT;
     683         312 :   l = FD_LAYOUT_APPEND( l, FD_PACK_ALIGN,       sizeof(fd_pack_t)                               );
     684         312 :   l = FD_LAYOUT_APPEND( l, trp_pool_align (),   trp_pool_footprint ( pack_depth+extra_depth   ) ); /* pool           */
     685         312 :   l = FD_LAYOUT_APPEND( l, penalty_map_align(), penalty_map_footprint( lg_penalty_trp         ) ); /* penalty_treaps */
     686         312 :   l = FD_LAYOUT_APPEND( l, expq_align     (),   expq_footprint     ( pack_depth               ) ); /* expiration prq */
     687         312 :   l = FD_LAYOUT_APPEND( l, acct_uses_align(),   acct_uses_footprint( lg_uses_tbl_sz           ) ); /* acct_in_use    */
     688         312 :   l = FD_LAYOUT_APPEND( l, acct_uses_align(),   acct_uses_footprint( lg_max_writers           ) ); /* writer_costs   */
     689         312 :   l = FD_LAYOUT_APPEND( l, 32UL,                sizeof(fd_pack_addr_use_t*)*written_list_max    ); /* written_list   */
     690         312 :   l = FD_LAYOUT_APPEND( l, noncemap_align (),   noncemap_footprint ( nonce_chain_cnt          ) ); /* noncemap       */
     691         312 :   l = FD_LAYOUT_APPEND( l, sig2txn_align  (),   sig2txn_footprint  ( sig_chain_cnt            ) ); /* signature_map  */
     692         312 :   l = FD_LAYOUT_APPEND( l, acct_uses_align(),   acct_uses_footprint( lg_bundle_temp           ) ); /* bundle_temp_map*/
     693         312 :   l = FD_LAYOUT_APPEND( l, 32UL,                sizeof(fd_pack_addr_use_t)*max_acct_in_flight   ); /* use_by_bank    */
     694         312 :   l = FD_LAYOUT_APPEND( l, 32UL,                sizeof(ulong)*max_txn_in_flight                 ); /* use_by_bank_txn*/
     695         312 :   l = FD_LAYOUT_APPEND( l, bitset_map_align(),  bitset_map_footprint( lg_acct_in_trp          ) ); /* acct_to_bitset */
     696         312 :   l = FD_LAYOUT_APPEND( l, 64UL,                (pack_depth+extra_depth)*bundle_meta_sz         ); /* bundle_meta */
     697         312 :   return FD_LAYOUT_FINI( l, FD_PACK_ALIGN );
     698         312 : }
     699             : 
     700             : void *
     701             : fd_pack_new( void                   * mem,
     702             :              ulong                    pack_depth,
     703             :              ulong                    bundle_meta_sz,
     704             :              ulong                    bank_tile_cnt,
     705             :              fd_pack_limits_t const * limits,
     706         528 :              fd_rng_t               * rng           ) {
     707             : 
     708         528 :   int enable_bundles = !!bundle_meta_sz;
     709         528 :   ulong extra_depth        = fd_ulong_if( enable_bundles, 1UL+2UL*FD_PACK_MAX_TXN_PER_BUNDLE, 1UL );
     710         528 :   ulong max_acct_in_treap  = pack_depth * FD_TXN_ACCT_ADDR_MAX;
     711         528 :   ulong max_txn_per_mblk   = fd_ulong_max( limits->max_txn_per_microblock,
     712         528 :                                            fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE, 0UL ) );
     713         528 :   ulong max_acct_in_flight = bank_tile_cnt * (FD_TXN_ACCT_ADDR_MAX * max_txn_per_mblk + 1UL);
     714         528 :   ulong max_txn_in_flight  = bank_tile_cnt * max_txn_per_mblk;
     715             : 
     716         528 :   ulong max_w_per_block    = fd_ulong_min( limits->max_cost_per_block / FD_PACK_COST_PER_WRITABLE_ACCT,
     717         528 :                                            max_txn_per_mblk * limits->max_microblocks_per_block * FD_TXN_ACCT_ADDR_MAX );
     718         528 :   ulong written_list_max   = fd_ulong_min( max_w_per_block>>1, DEFAULT_WRITTEN_LIST_MAX );
     719         528 :   ulong bundle_temp_accts  = fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE*FD_TXN_ACCT_ADDR_MAX, 1UL );
     720         528 :   ulong sig_chain_cnt      = sig2txn_chain_cnt_est( pack_depth );
     721         528 :   ulong nonce_chain_cnt    = noncemap_chain_cnt_est( pack_depth );
     722             : 
     723             :   /* log base 2, but with a 2* so that the hash table stays sparse */
     724         528 :   int lg_uses_tbl_sz = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_flight                        ) );
     725         528 :   int lg_max_writers = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_w_per_block                           ) );
     726         528 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap                         ) );
     727         528 :   int lg_penalty_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap/PENALTY_TREAP_THRESHOLD ) );
     728         528 :   int lg_bundle_temp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*bundle_temp_accts                         ) );
     729             : 
     730         528 :   FD_SCRATCH_ALLOC_INIT( l, mem );
     731         528 :   fd_pack_t * pack    = FD_SCRATCH_ALLOC_APPEND( l,  FD_PACK_ALIGN,       sizeof(fd_pack_t)                             );
     732             :   /* The pool has one extra element that is used between insert_init and
     733             :      cancel/fini. */
     734         528 :   void * _pool        = FD_SCRATCH_ALLOC_APPEND( l,  trp_pool_align(),    trp_pool_footprint ( pack_depth+extra_depth ) );
     735         528 :   void * _penalty_map = FD_SCRATCH_ALLOC_APPEND( l,  penalty_map_align(), penalty_map_footprint( lg_penalty_trp       ) );
     736         528 :   void * _expq        = FD_SCRATCH_ALLOC_APPEND( l,  expq_align(),        expq_footprint     ( pack_depth             ) );
     737         528 :   void * _uses        = FD_SCRATCH_ALLOC_APPEND( l,  acct_uses_align(),   acct_uses_footprint( lg_uses_tbl_sz         ) );
     738         528 :   void * _writer_cost = FD_SCRATCH_ALLOC_APPEND( l,  acct_uses_align(),   acct_uses_footprint( lg_max_writers         ) );
     739         528 :   void * _written_lst = FD_SCRATCH_ALLOC_APPEND( l,  32UL,                sizeof(fd_pack_addr_use_t*)*written_list_max  );
     740         528 :   void * _noncemap    = FD_SCRATCH_ALLOC_APPEND( l,  noncemap_align(),    noncemap_footprint ( nonce_chain_cnt        ) );
     741         528 :   void * _sig_map     = FD_SCRATCH_ALLOC_APPEND( l,  sig2txn_align(),     sig2txn_footprint  ( sig_chain_cnt          ) );
     742         528 :   void * _bundle_temp = FD_SCRATCH_ALLOC_APPEND( l,  acct_uses_align(),   acct_uses_footprint( lg_bundle_temp         ) );
     743         528 :   void * _use_by_bank = FD_SCRATCH_ALLOC_APPEND( l,  32UL,                sizeof(fd_pack_addr_use_t)*max_acct_in_flight );
     744         528 :   void * _use_by_txn  = FD_SCRATCH_ALLOC_APPEND( l,  32UL,                sizeof(ulong)*max_txn_in_flight               );
     745         528 :   void * _acct_bitset = FD_SCRATCH_ALLOC_APPEND( l,  bitset_map_align(),  bitset_map_footprint( lg_acct_in_trp        ) );
     746         528 :   void * bundle_meta  = FD_SCRATCH_ALLOC_APPEND( l,  64UL,                (pack_depth+extra_depth)*bundle_meta_sz       );
     747             : 
     748           0 :   pack->pack_depth                  = pack_depth;
     749         528 :   pack->bundle_meta_sz              = bundle_meta_sz;
     750         528 :   pack->bank_tile_cnt               = bank_tile_cnt;
     751         528 :   pack->lim[0]                      = *limits;
     752         528 :   pack->pending_txn_cnt             = 0UL;
     753         528 :   pack->microblock_cnt              = 0UL;
     754         528 :   pack->data_bytes_consumed         = 0UL;
     755         528 :   memset( pack->sched_results, 0, sizeof(pack->sched_results) );
     756         528 :   pack->rng                         = rng;
     757         528 :   pack->cumulative_block_cost       = 0UL;
     758         528 :   pack->cumulative_vote_cost        = 0UL;
     759         528 :   pack->expire_before               = 0UL;
     760         528 :   pack->outstanding_microblock_mask = 0UL;
     761         528 :   pack->cumulative_rebated_cus      = 0UL;
     762             : 
     763             : 
     764         528 :   trp_pool_new(  _pool,        pack_depth+extra_depth );
     765             : 
     766         528 :   fd_pack_ord_txn_t * pool = trp_pool_join( _pool );
     767         528 :   treap_seed( pool, pack_depth+extra_depth, fd_rng_ulong( rng ) );
     768     2186148 :   for( ulong i=0UL; i<pack_depth+extra_depth; i++ ) pool[i].root = FD_ORD_TXN_ROOT_FREE;
     769             : 
     770         528 :   (void)trp_pool_leave( pool );
     771             : 
     772         528 :   penalty_map_new( _penalty_map, lg_penalty_trp, 0UL );
     773             : 
     774             :   /* These treaps can have at most pack_depth elements at any moment,
     775             :      but they come from a pool of size pack_depth+extra_depth. */
     776         528 :   treap_new( (void*)pack->pending,         pack_depth+extra_depth );
     777         528 :   treap_new( (void*)pack->pending_votes,   pack_depth+extra_depth );
     778         528 :   treap_new( (void*)pack->pending_bundles, pack_depth+extra_depth );
     779             : 
     780         528 :   pack->pending_smallest->cus         = ULONG_MAX;
     781         528 :   pack->pending_smallest->bytes       = ULONG_MAX;
     782         528 :   pack->pending_votes_smallest->cus   = ULONG_MAX;
     783         528 :   pack->pending_votes_smallest->bytes = ULONG_MAX;
     784             : 
     785         528 :   expq_new( _expq, pack_depth );
     786             : 
     787         528 :   FD_PACK_BITSET_CLEAR( pack->bitset_rw_in_use );
     788         528 :   FD_PACK_BITSET_CLEAR( pack->bitset_w_in_use  );
     789             : 
     790         528 :   acct_uses_new( _uses,        lg_uses_tbl_sz, 0UL );
     791         528 :   acct_uses_new( _writer_cost, lg_max_writers, 0UL );
     792         528 :   acct_uses_new( _bundle_temp, lg_bundle_temp, 0UL );
     793             : 
     794         528 :   pack->written_list     = _written_lst;
     795         528 :   pack->written_list_cnt = 0UL;
     796         528 :   pack->written_list_max = written_list_max;
     797             : 
     798         528 :   noncemap_new( _noncemap, nonce_chain_cnt, fd_rng_ulong( rng ) );
     799             : 
     800         528 :   sig2txn_new( _sig_map, sig_chain_cnt, fd_rng_ulong( rng ) );
     801             : 
     802         528 :   fd_pack_addr_use_t * use_by_bank     = (fd_pack_addr_use_t *)_use_by_bank;
     803         528 :   ulong *              use_by_bank_txn = (ulong *)_use_by_txn;
     804        6783 :   for( ulong i=0UL; i<bank_tile_cnt; i++ ) {
     805        6255 :     pack->use_by_bank    [i] = use_by_bank + i*(FD_TXN_ACCT_ADDR_MAX*max_txn_per_mblk+1UL);
     806        6255 :     pack->use_by_bank_cnt[i] = 0UL;
     807        6255 :     pack->use_by_bank_txn[i] = use_by_bank_txn + i*max_txn_per_mblk;
     808        6255 :     pack->use_by_bank_txn[i][0] = 0UL;
     809        6255 :   }
     810       27009 :   for( ulong i=bank_tile_cnt; i<FD_PACK_MAX_BANK_TILES; i++ ) {
     811       26481 :     pack->use_by_bank    [i] = NULL;
     812       26481 :     pack->use_by_bank_cnt[i] = 0UL;
     813       26481 :     pack->use_by_bank_txn[i] = NULL;
     814       26481 :   }
     815             : 
     816         528 :   fd_histf_new( pack->txn_per_microblock,  FD_MHIST_MIN( PACK, TOTAL_TRANSACTIONS_PER_MICROBLOCK_COUNT ),
     817         528 :                                            FD_MHIST_MAX( PACK, TOTAL_TRANSACTIONS_PER_MICROBLOCK_COUNT ) );
     818         528 :   fd_histf_new( pack->vote_per_microblock, FD_MHIST_MIN( PACK, VOTES_PER_MICROBLOCK_COUNT ),
     819         528 :                                            FD_MHIST_MAX( PACK, VOTES_PER_MICROBLOCK_COUNT ) );
     820             : 
     821         528 :   fd_histf_new( pack->scheduled_cus_per_block, FD_MHIST_MIN( PACK, CUS_SCHEDULED ),
     822         528 :                                                FD_MHIST_MAX( PACK, CUS_SCHEDULED ) );
     823         528 :   fd_histf_new( pack->rebated_cus_per_block,   FD_MHIST_MIN( PACK, CUS_REBATED   ),
     824         528 :                                                FD_MHIST_MAX( PACK, CUS_REBATED   ) );
     825         528 :   fd_histf_new( pack->net_cus_per_block,       FD_MHIST_MIN( PACK, CUS_NET       ),
     826         528 :                                                FD_MHIST_MAX( PACK, CUS_NET       ) );
     827         528 :   fd_histf_new( pack->pct_cus_per_block,       FD_MHIST_MIN( PACK, CUS_PCT       ),
     828         528 :                                                FD_MHIST_MAX( PACK, CUS_PCT       ) );
     829             : 
     830         528 :   pack->compressed_slot_number = (ushort)(FD_PACK_SKIP_CNT+1);
     831             : 
     832         528 :   pack->bitset_avail[ 0 ] = FD_PACK_BITSET_SLOWPATH;
     833      180752 :   for( ulong i=0UL; i<FD_PACK_BITSET_MAX; i++ ) pack->bitset_avail[ i+1UL ] = (ushort)i;
     834         528 :   pack->bitset_avail_cnt = FD_PACK_BITSET_MAX;
     835             : 
     836         528 :   bitset_map_new( _acct_bitset, lg_acct_in_trp, 0UL );
     837             : 
     838         528 :   fd_chkdup_new( pack->chkdup, rng );
     839             : 
     840         528 :   pack->bundle_meta = bundle_meta;
     841             : 
     842         528 :   return mem;
     843         528 : }
     844             : 
     845             : fd_pack_t *
     846         528 : fd_pack_join( void * mem ) {
     847         528 :   FD_SCRATCH_ALLOC_INIT( l, mem );
     848         528 :   fd_pack_t * pack  = FD_SCRATCH_ALLOC_APPEND( l, FD_PACK_ALIGN, sizeof(fd_pack_t) );
     849             : 
     850           0 :   int enable_bundles = !!pack->bundle_meta_sz;
     851         528 :   ulong pack_depth             = pack->pack_depth;
     852         528 :   ulong extra_depth            = fd_ulong_if( enable_bundles, 1UL+2UL*FD_PACK_MAX_TXN_PER_BUNDLE, 1UL );
     853         528 :   ulong bank_tile_cnt          = pack->bank_tile_cnt;
     854         528 :   ulong max_txn_per_microblock = fd_ulong_max( pack->lim->max_txn_per_microblock,
     855         528 :                                                fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE, 0UL ) );
     856             : 
     857         528 :   ulong max_acct_in_treap  = pack_depth * FD_TXN_ACCT_ADDR_MAX;
     858         528 :   ulong max_acct_in_flight = bank_tile_cnt * (FD_TXN_ACCT_ADDR_MAX * max_txn_per_microblock + 1UL);
     859         528 :   ulong max_txn_in_flight  = bank_tile_cnt * max_txn_per_microblock;
     860         528 :   ulong max_w_per_block    = fd_ulong_min( pack->lim->max_cost_per_block / FD_PACK_COST_PER_WRITABLE_ACCT,
     861         528 :                                            max_txn_per_microblock * pack->lim->max_microblocks_per_block * FD_TXN_ACCT_ADDR_MAX );
     862         528 :   ulong written_list_max   = fd_ulong_min( max_w_per_block>>1, DEFAULT_WRITTEN_LIST_MAX );
     863         528 :   ulong bundle_temp_accts  = fd_ulong_if( enable_bundles, FD_PACK_MAX_TXN_PER_BUNDLE*FD_TXN_ACCT_ADDR_MAX, 1UL );
     864         528 :   ulong sig_chain_cnt      = sig2txn_chain_cnt_est( pack_depth );
     865         528 :   ulong nonce_chain_cnt    = noncemap_chain_cnt_est( pack_depth );
     866             : 
     867         528 :   int lg_uses_tbl_sz = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_flight                        ) );
     868         528 :   int lg_max_writers = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_w_per_block                           ) );
     869         528 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap                         ) );
     870         528 :   int lg_penalty_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap/PENALTY_TREAP_THRESHOLD ) );
     871         528 :   int lg_bundle_temp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*bundle_temp_accts                         ) );
     872             : 
     873             : 
     874         528 :   pack->pool          = trp_pool_join(   FD_SCRATCH_ALLOC_APPEND( l, trp_pool_align(),   trp_pool_footprint   ( pack_depth+extra_depth  ) ) );
     875         528 :   pack->penalty_treaps= penalty_map_join(FD_SCRATCH_ALLOC_APPEND( l, penalty_map_align(),penalty_map_footprint( lg_penalty_trp          ) ) );
     876         528 :   pack->expiration_q  = expq_join    (   FD_SCRATCH_ALLOC_APPEND( l, expq_align(),       expq_footprint       ( pack_depth              ) ) );
     877         528 :   pack->acct_in_use   = acct_uses_join(  FD_SCRATCH_ALLOC_APPEND( l, acct_uses_align(),  acct_uses_footprint  ( lg_uses_tbl_sz          ) ) );
     878         528 :   pack->writer_costs  = acct_uses_join(  FD_SCRATCH_ALLOC_APPEND( l, acct_uses_align(),  acct_uses_footprint  ( lg_max_writers          ) ) );
     879         528 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 32UL,               sizeof(fd_pack_addr_use_t*)*written_list_max       );
     880         528 :   pack->noncemap      = noncemap_join(   FD_SCRATCH_ALLOC_APPEND( l, noncemap_align(),   noncemap_footprint   ( nonce_chain_cnt         ) ) );
     881         528 :   pack->signature_map = sig2txn_join(    FD_SCRATCH_ALLOC_APPEND( l, sig2txn_align(),    sig2txn_footprint    ( sig_chain_cnt           ) ) );
     882         528 :   pack->bundle_temp_map=acct_uses_join(  FD_SCRATCH_ALLOC_APPEND( l, acct_uses_align(),  acct_uses_footprint  ( lg_bundle_temp          ) ) );
     883         528 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 32UL,               sizeof(fd_pack_addr_use_t)*max_acct_in_flight      );
     884         528 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 32UL,               sizeof(ulong)*max_txn_in_flight                    );
     885         528 :   pack->acct_to_bitset= bitset_map_join( FD_SCRATCH_ALLOC_APPEND( l, bitset_map_align(), bitset_map_footprint( lg_acct_in_trp           ) ) );
     886         528 :   /* */                                  FD_SCRATCH_ALLOC_APPEND( l, 64UL,               (pack_depth+extra_depth)*pack->bundle_meta_sz      );
     887             : 
     888         528 :   FD_MGAUGE_SET( PACK, PENDING_TRANSACTIONS_HEAP_SIZE, pack->pack_depth );
     889         528 :   memset( pack->top_writers, 0, sizeof(pack->top_writers) );
     890             : 
     891         528 :   return pack;
     892         528 : }
     893             : 
     894             : 
     895             : /* Returns 0 on failure, 1 on success for a vote, 2 on success for a
     896             :    non-vote. */
     897             : static int
     898             : fd_pack_estimate_rewards_and_compute( fd_txn_e_t        * txne,
     899    13583097 :                                       fd_pack_ord_txn_t * out ) {
     900    13583097 :   fd_txn_t * txn = TXN(txne->txnp);
     901    13583097 :   ulong sig_rewards = FD_PACK_FEE_PER_SIGNATURE * txn->signature_cnt; /* Easily in [5000, 635000] */
     902             : 
     903    13583097 :   ulong requested_execution_cus;
     904    13583097 :   ulong priority_rewards;
     905    13583097 :   ulong precompile_sigs;
     906    13583097 :   ulong requested_loaded_accounts_data_cost;
     907    13583097 :   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 );
     908             : 
     909    13583097 :   if( FD_UNLIKELY( !cost_estimate ) ) return 0;
     910             : 
     911             :   /* precompile_sigs <= 16320, so after the addition,
     912             :      sig_rewards < 83,000,000 */
     913    13583094 :   sig_rewards += FD_PACK_FEE_PER_SIGNATURE * precompile_sigs;
     914    13583094 :   sig_rewards = sig_rewards * FD_PACK_TXN_FEE_BURN_PCT / 100UL;
     915             : 
     916             :   /* No fancy CU estimation in this version of pack
     917             :   for( ulong i=0UL; i<(ulong)txn->instr_cnt; i++ ) {
     918             :     uchar prog_id_idx = txn->instr[ i ].program_id;
     919             :     fd_acct_addr_t const * acct_addr = fd_txn_get_acct_addrs( txn, txnp->payload ) + (ulong)prog_id_idx;
     920             :   }
     921             :   */
     922    13583094 :   out->rewards                              = (priority_rewards < (UINT_MAX - sig_rewards)) ? (uint)(sig_rewards + priority_rewards) : UINT_MAX;
     923    13583094 :   out->compute_est                          = (uint)cost_estimate;
     924    13583094 :   out->txn->pack_cu.requested_exec_plus_acct_data_cus = (uint)(requested_execution_cus + requested_loaded_accounts_data_cost);
     925    13583094 :   out->txn->pack_cu.non_execution_cus       = (uint)(cost_estimate - requested_execution_cus - requested_loaded_accounts_data_cost);
     926             : 
     927    13583094 :   return fd_int_if( txne->txnp->flags & FD_TXN_P_FLAGS_IS_SIMPLE_VOTE, 1, 2 );
     928    13583097 : }
     929             : 
     930             : /* Returns 0 on failure, 1 if not a durable nonce transaction, and 2 if
     931             :    it is.  FIXME: These return codes are set to harmonize with
     932             :    estimate_rewards_and_compute but -1/0/1 makes a lot more sense to me.
     933             :    */
     934             : static int
     935    13583094 : fd_pack_validate_durable_nonce( fd_txn_e_t * txne ) {
     936    13583094 :   fd_txn_t const * txn = TXN(txne->txnp);
     937             : 
     938             :   /* First instruction invokes system program with 4 bytes of
     939             :      instruction data with the little-endian value 4.  It also has 3
     940             :      accounts: the nonce account, recent blockhashes sysvar, and the
     941             :      nonce authority.  It seems like technically the nonce authority may
     942             :      not need to be passed in, but we disallow that.  We also allow
     943             :      trailing data and trailing accounts.  We want to organize the
     944             :      checks somewhat to minimize cache misses. */
     945    13583094 :   if( FD_UNLIKELY( txn->instr_cnt==0            ) ) return 1;
     946     1417974 :   if( FD_UNLIKELY( txn->instr[ 0 ].data_sz<4UL  ) ) return 1;
     947     1417974 :   if( FD_UNLIKELY( txn->instr[ 0 ].acct_cnt<3UL ) ) return 1; /* It seems like technically 2 is allowed, but never used */
     948       39300 :   if( FD_LIKELY  ( fd_uint_load_4( txne->txnp->payload + txn->instr[ 0 ].data_off )!=4U ) ) return 1;
     949             :   /* The program has to be a static account */
     950        1155 :   fd_acct_addr_t const * accts = fd_txn_get_acct_addrs( txn, txne->txnp->payload );
     951        1155 :   if( FD_UNLIKELY( !fd_memeq( accts[ txn->instr[ 0 ].program_id ].b, null_addr.b, 32UL       ) ) ) return 1;
     952        1155 :   if( FD_UNLIKELY( !fd_txn_is_signer( txn, txne->txnp->payload[ txn->instr[ 0 ].acct_off+2 ] ) ) ) return 0;
     953             :   /* We could check recent blockhash, but it's not necessary */
     954        1152 :   return 2;
     955        1155 : }
     956             : 
     957             : /* Can the fee payer afford to pay a transaction with the specified
     958             :    price?  Returns 1 if so, 0 otherwise.  This is just a stub that
     959             :    always returns 1 for now, and the real check is deferred to the bank
     960             :    tile.  In general, this function can't be totally accurate, because
     961             :    the transactions immediately prior to this one can affect the balance
     962             :    of this fee payer, but a simple check here may be helpful for
     963             :    reducing spam. */
     964             : static int
     965             : fd_pack_can_fee_payer_afford( fd_acct_addr_t const * acct_addr,
     966    13583088 :                               ulong                  price /* in lamports */) {
     967    13583088 :   (void)acct_addr;
     968    13583088 :   (void)price;
     969    13583088 :   return 1;
     970    13583088 : }
     971             : 
     972             : 
     973             : 
     974             : 
     975             : 
     976    13703916 : fd_txn_e_t * fd_pack_insert_txn_init(   fd_pack_t * pack                   ) { return trp_pool_ele_acquire( pack->pool )->txn_e; }
     977      122400 : 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 ); }
     978             : 
     979          24 : #define REJECT( reason ) do {                                       \
     980          24 :                            trp_pool_ele_release( pack->pool, ord ); \
     981          24 :                            return FD_PACK_INSERT_REJECT_ ## reason; \
     982          24 :                          } while( 0 )
     983             : 
     984             : /* These require txn, accts, and alt_adj to be defined as per usual */
     985      328987 : #define ACCT_IDX_TO_PTR( idx ) (__extension__( {                                               \
     986      328987 :       ulong __idx = (idx);                                                                     \
     987      328987 :       fd_ptr_if( __idx<fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM ), accts, alt_adj )+__idx; \
     988      328987 :       }))
     989    71650749 : #define ACCT_ITER_TO_PTR( iter ) (__extension__( {                                             \
     990    71650749 :       ulong __idx = fd_txn_acct_iter_idx( iter );                                              \
     991    71650749 :       fd_ptr_if( __idx<fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM ), accts, alt_adj )+__idx; \
     992    71650749 :       }))
     993             : 
     994             : 
     995             : /* Tries to find the worst transaction in any treap in pack.  If that
     996             :    transaction's score is worse than or equal to threshold_score, it
     997             :    initiates a delete and returns the number of deleted transactions
     998             :    (potentially more than 1 for a bundle).  If it's higher than
     999             :    threshold_score, it returns 0.  To force this function to delete the
    1000             :    worst transaction if there are any eligible ones, pass FLT_MAX as
    1001             :    threshold_score. */
    1002             : static inline ulong
    1003             : delete_worst( fd_pack_t * pack,
    1004             :               float       threshold_score,
    1005      494601 :               int         is_vote ) {
    1006             :   /* If the tree is full, we want to see if this is better than the
    1007             :      worst element in the pool before inserting.  If the new transaction
    1008             :      is better than that one, we'll delete it and insert the new
    1009             :      transaction. Otherwise, we'll throw away this transaction.
    1010             : 
    1011             :      We want to bias the definition of "worst" here to provide better
    1012             :      quality of service.  For example, if the pool is filled with
    1013             :      transactions that all write to the same account or are all votes,
    1014             :      we want to bias towards treating one of those transactions as the
    1015             :      worst, even if they pay slightly higher fees per computer unit,
    1016             :      since we know we won't actually be able to schedule them all.
    1017             : 
    1018             :      This is a tricky task, however.  All our notions of priority and
    1019             :      better/worse are based on static information about the transaction,
    1020             :      and there's not an easy way to take into account global
    1021             :      information, for example, how many other transactions contend with
    1022             :      this one.  One idea is to build a heap (not a treap, since we only
    1023             :      need pop-min, insert, and delete) with one element for each element
    1024             :      in the pool, with a "delete me" score that's related but not
    1025             :      identical to the normal score.  This would allow building in some
    1026             :      global information.  The downside is that the global information
    1027             :      that gets integrated is static.  E.g. if you bias a transaction's
    1028             :      "delete me" score to make it more likely to be deleted because
    1029             :      there are many conflicting transactions in the pool, the score
    1030             :      stays biased, even if the global conditions change (unless you come
    1031             :      up with some complicated re-scoring scheme).  This can work, since
    1032             :      when the pool is full, the global bias factors are unlikely to
    1033             :      change significantly at the relevant timescales.
    1034             : 
    1035             :      However, rather than this, we implement a simpler probabilistic
    1036             :      scheme.  We'll sample M transactions, find the worst transaction in
    1037             :      each of the M treaps, compute a "delete me" score for those <= M
    1038             :      transactions, and delete the worst.  If one penalty treap is
    1039             :      starting to get big, then it becomes very likely that the random
    1040             :      sample will find it and choose to delete a transaction from it.
    1041             : 
    1042             :      The exact formula for the "delete me" score should be the matter of
    1043             :      some more intense quantitative research.  For now, we'll just use
    1044             :      this:
    1045             : 
    1046             :      Treap with N transactions        Scale Factor
    1047             :      Pending                      1.0 unless inserting a vote and votes < 25%
    1048             :      Pending votes                1.0 until 75% of depth, then 0
    1049             :      Penalty treap                1.0 at <= 100 transactions, then sqrt(100/N)
    1050             :      Pending bundles              inf (since the rewards value is fudged)
    1051             : 
    1052             :      We'll also use M=8. */
    1053             : 
    1054      494601 :   float worst_score = FLT_MAX;
    1055      494601 :   fd_pack_ord_txn_t * worst = NULL;
    1056     4451409 :   for( ulong i=0UL; i<8UL; i++ ) {
    1057     3956808 :     uint  pool_max = (uint)trp_pool_max( pack->pool );
    1058     3956808 :     ulong sample_i = fd_rng_uint_roll( pack->rng, pool_max );
    1059             : 
    1060     3956808 :     fd_pack_ord_txn_t * sample = &pack->pool[ sample_i ];
    1061             :     /* Presumably if we're calling this, the pool is almost entirely
    1062             :        full, so the probability of choosing a free one is small.  If
    1063             :        it does happen, find the first one that isn't free. */
    1064     3959093 :     while( FD_UNLIKELY( sample->root==FD_ORD_TXN_ROOT_FREE ) ) sample = &pack->pool[ (++sample_i)%pool_max ];
    1065             : 
    1066     3956808 :     int       root_idx   = sample->root;
    1067     3956808 :     float     multiplier = 0.0f; /* The smaller this is, the more biased we'll be to deleting it */
    1068     3956808 :     treap_t * treap;
    1069     3956808 :     switch( root_idx & FD_ORD_TXN_ROOT_TAG_MASK ) {
    1070           0 :       default:
    1071           0 :       case FD_ORD_TXN_ROOT_FREE: {
    1072           0 :         FD_LOG_CRIT(( "Double free detected" ));
    1073           0 :         return ULONG_MAX; /* Can't be hit */
    1074           0 :       }
    1075     3935441 :       case FD_ORD_TXN_ROOT_PENDING: {
    1076     3935441 :         treap = pack->pending;
    1077     3935441 :         ulong vote_cnt = treap_ele_cnt( pack->pending_votes );
    1078     3935441 :         if( FD_LIKELY( !is_vote || (vote_cnt>=pack->pack_depth/4UL ) ) ) multiplier = 1.0f;
    1079     3935441 :         break;
    1080           0 :       }
    1081           0 :       case FD_ORD_TXN_ROOT_PENDING_VOTE: {
    1082           0 :         treap = pack->pending_votes;
    1083           0 :         ulong vote_cnt = treap_ele_cnt( pack->pending_votes );
    1084           0 :         if( FD_LIKELY( is_vote || (vote_cnt<=3UL*pack->pack_depth/4UL ) ) ) multiplier = 1.0f;
    1085           0 :         break;
    1086           0 :       }
    1087           0 :       case FD_ORD_TXN_ROOT_PENDING_BUNDLE: {
    1088             :         /* We don't have a way to tell how much these actually pay in
    1089             :            rewards, so we just assume they are very high. */
    1090           0 :         treap = pack->pending_bundles;
    1091             :         /* We cap rewards at UINT_MAX lamports for estimation, and min
    1092             :            CUs is about 1000, which means rewards/compute < 5e6.
    1093             :            FLT_MAX is around 3e38. That means, 1e20*rewards/compute is
    1094             :            much less than FLT_MAX, so we won't have any issues with
    1095             :            overflow.  On the other hand, if rewards==1 lamport and
    1096             :            compute is 2 million CUs, 1e20*1/2e6 is still higher than any
    1097             :            normal transaction. */
    1098           0 :         multiplier = 1e20f;
    1099           0 :         break;
    1100           0 :       }
    1101       21367 :       case FD_ORD_TXN_ROOT_PENALTY( 0 ): {
    1102       21367 :         fd_txn_t * txn = TXN( sample->txn );
    1103       21367 :         fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, sample->txn->payload );
    1104       21367 :         fd_acct_addr_t const * alt_adj = sample->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1105       21367 :         fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( root_idx ) );
    1106       21367 :         fd_pack_penalty_treap_t * q = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    1107       21367 :         FD_TEST( q );
    1108       21367 :         ulong cnt = treap_ele_cnt( q->penalty_treap );
    1109       21367 :         treap = q->penalty_treap;
    1110             : 
    1111       21367 :         multiplier = sqrtf( 100.0f / (float)fd_ulong_max( 100UL, cnt ) );
    1112       21367 :         break;
    1113       21367 :       }
    1114     3956808 :     }
    1115             :     /* Get the worst from the sampled treap */
    1116     3956808 :     treap_fwd_iter_t _cur=treap_fwd_iter_init( treap, pack->pool );
    1117     3956808 :     FD_TEST( !treap_fwd_iter_done( _cur ) ); /* It can't be empty because we just sampled an element from it. */
    1118     3956808 :     sample = treap_fwd_iter_ele( _cur, pack->pool );
    1119             : 
    1120     3956808 :     float score = multiplier * (float)sample->rewards / (float)sample->compute_est;
    1121     3956808 :     worst = fd_ptr_if( score<worst_score, sample, worst );
    1122     3956808 :     worst_score = fd_float_if( worst_score<score, worst_score, score );
    1123     3956808 :   }
    1124             : 
    1125      494601 :   if( FD_UNLIKELY( !worst                      ) ) return 0;
    1126      494601 :   if( FD_UNLIKELY( threshold_score<worst_score ) ) return 0;
    1127             : 
    1128      494601 :   return delete_transaction( pack, worst, 1, 1 );
    1129      494601 : }
    1130             : 
    1131             : static inline int
    1132             : validate_transaction( fd_pack_t               * pack,
    1133             :                       fd_pack_ord_txn_t const * ord,
    1134             :                       fd_txn_t          const * txn,
    1135             :                       fd_acct_addr_t    const * accts,
    1136             :                       fd_acct_addr_t    const * alt_adj,
    1137    13583088 :                       int                       check_bundle_blacklist ) {
    1138    13583088 :   int writes_to_sysvar = 0;
    1139    13583088 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    1140    28351344 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1141    14768256 :     writes_to_sysvar |= fd_pack_unwritable_contains( ACCT_ITER_TO_PTR( iter ) );
    1142    14768256 :   }
    1143             : 
    1144    13583088 :   int bundle_blacklist = 0;
    1145    13583088 :   if( FD_UNLIKELY( check_bundle_blacklist ) ) {
    1146       67758 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_ALL );
    1147      447423 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1148      379665 :       bundle_blacklist |= (3==fd_pack_tip_prog_check_blacklist( ACCT_ITER_TO_PTR( iter ) ));
    1149      379665 :     }
    1150       67758 :   }
    1151             : 
    1152    13583088 :   fd_acct_addr_t const * alt     = ord->txn_e->alt_accts;
    1153    13583088 :   fd_chkdup_t * chkdup = pack->chkdup;
    1154    13583088 :   ulong imm_cnt = fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1155    13583088 :   ulong alt_cnt = fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_ALT );
    1156             : 
    1157             :   /* Throw out transactions ... */
    1158             :   /*           ... that are unfunded */
    1159    13583088 :   if( FD_UNLIKELY( !fd_pack_can_fee_payer_afford( accts, ord->rewards    ) ) ) return FD_PACK_INSERT_REJECT_UNAFFORDABLE;
    1160             :   /*           ... that are so big they'll never run */
    1161    13583088 :   if( FD_UNLIKELY( ord->compute_est >= pack->lim->max_cost_per_block       ) ) return FD_PACK_INSERT_REJECT_TOO_LARGE;
    1162             :   /*           ... that load too many accounts (ignoring 9LZdXeKGeBV6hRLdxS1rHbHoEUsKqesCC2ZAPTPKJAbK) */
    1163    13583088 :   if( FD_UNLIKELY( fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_ALL )>64UL     ) ) return FD_PACK_INSERT_REJECT_ACCOUNT_CNT;
    1164             :   /*           ... that duplicate an account address */
    1165    13583085 :   if( FD_UNLIKELY( fd_chkdup_check( chkdup, accts, imm_cnt, alt, alt_cnt ) ) ) return FD_PACK_INSERT_REJECT_DUPLICATE_ACCT;
    1166             :   /*           ... that try to write to a sysvar */
    1167    13583082 :   if( FD_UNLIKELY( writes_to_sysvar                                        ) ) return FD_PACK_INSERT_REJECT_WRITES_SYSVAR;
    1168             :   /*           ... that use an account that violates bundle rules */
    1169    13582989 :   if( FD_UNLIKELY( bundle_blacklist & 1                                    ) ) return FD_PACK_INSERT_REJECT_BUNDLE_BLACKLIST;
    1170             : 
    1171    13582989 :   return 0;
    1172    13582989 : }
    1173             : 
    1174             : 
    1175             : 
    1176             : /* returns cumulative penalty "points", i.e. the sum of the populated
    1177             :    section of penalties (which also tells the caller how much of the
    1178             :    array is populated. */
    1179             : static inline ulong
    1180             : populate_bitsets( fd_pack_t         * pack,
    1181             :                   fd_pack_ord_txn_t * ord,
    1182             :                   ushort              penalties  [ static FD_TXN_ACCT_ADDR_MAX ],
    1183    13581939 :                   uchar               penalty_idx[ static FD_TXN_ACCT_ADDR_MAX ] ) {
    1184    13581939 :   FD_PACK_BITSET_CLEAR( ord->rw_bitset );
    1185    13581939 :   FD_PACK_BITSET_CLEAR( ord->w_bitset  );
    1186             : 
    1187    13581939 :   fd_txn_t * txn   = TXN(ord->txn);
    1188    13581939 :   uchar * payload  = ord->txn->payload;
    1189             : 
    1190    13581939 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, payload );
    1191             :   /* alt_adj is the pointer to the ALT expansion, adjusted so that if
    1192             :      account address n is the first that comes from the ALT, it can be
    1193             :      accessed with adj_lut[n]. */
    1194    13581939 :   fd_acct_addr_t const * alt_adj = ord->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1195             : 
    1196    13581939 :   ulong  cumulative_penalty = 0UL;
    1197    13581939 :   ulong  penalty_i          = 0UL;
    1198             : 
    1199    13581939 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    1200    28345545 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1201    14763606 :     fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    1202    14763606 :     fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, acct, NULL );
    1203    14763606 :     if( FD_UNLIKELY( q==NULL ) ) {
    1204    13276913 :       q = bitset_map_insert( pack->acct_to_bitset, acct );
    1205    13276913 :       q->ref_cnt                  = 0UL;
    1206    13276913 :       q->first_instance           = ord;
    1207    13276913 :       q->first_instance_was_write = 1;
    1208    13276913 :       q->bit                      = FD_PACK_BITSET_FIRST_INSTANCE;
    1209    13276913 :     } else if( FD_UNLIKELY( q->bit == FD_PACK_BITSET_FIRST_INSTANCE ) ) {
    1210        7321 :       q->bit = pack->bitset_avail[ pack->bitset_avail_cnt ];
    1211        7321 :       pack->bitset_avail_cnt = fd_ulong_if( !!pack->bitset_avail_cnt, pack->bitset_avail_cnt-1UL, 0UL );
    1212             : 
    1213        7321 :       FD_PACK_BITSET_SETN( q->first_instance->rw_bitset, q->bit );
    1214        7321 :       if( q->first_instance_was_write ) FD_PACK_BITSET_SETN( q->first_instance->w_bitset, q->bit );
    1215        7321 :     }
    1216    14763606 :     ulong penalty = fd_ulong_max( q->ref_cnt, PENALTY_TREAP_THRESHOLD )-PENALTY_TREAP_THRESHOLD;
    1217    14763606 :     if( FD_UNLIKELY( penalty ) ) {
    1218     1212867 :       penalties  [ penalty_i ] = (ushort)penalty;
    1219     1212867 :       penalty_idx[ penalty_i ] = (uchar )fd_txn_acct_iter_idx( iter );
    1220     1212867 :       penalty_i++;
    1221     1212867 :       cumulative_penalty += penalty;
    1222     1212867 :     }
    1223             : 
    1224    14763606 :     q->ref_cnt++;
    1225    14763606 :     FD_PACK_BITSET_SETN( ord->rw_bitset, q->bit );
    1226    14763606 :     FD_PACK_BITSET_SETN( ord->w_bitset , q->bit );
    1227    14763606 :   }
    1228             : 
    1229    13581939 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    1230    18157251 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1231             : 
    1232     4575312 :     fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    1233     4575312 :     if( FD_UNLIKELY( fd_pack_unwritable_contains( &acct ) ) ) continue;
    1234             : 
    1235     3081981 :     fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, acct, NULL );
    1236     3081981 :     if( FD_UNLIKELY( q==NULL ) ) {
    1237       29739 :       q = bitset_map_insert( pack->acct_to_bitset, acct );
    1238       29739 :       q->ref_cnt                  = 0UL;
    1239       29739 :       q->first_instance           = ord;
    1240       29739 :       q->first_instance_was_write = 0;
    1241       29739 :       q->bit                      = FD_PACK_BITSET_FIRST_INSTANCE;
    1242     3052242 :     } else if( FD_UNLIKELY( q->bit == FD_PACK_BITSET_FIRST_INSTANCE ) ) {
    1243       11031 :       q->bit = pack->bitset_avail[ pack->bitset_avail_cnt ];
    1244       11031 :       pack->bitset_avail_cnt = fd_ulong_if( !!pack->bitset_avail_cnt, pack->bitset_avail_cnt-1UL, 0UL );
    1245             : 
    1246       11031 :       FD_PACK_BITSET_SETN( q->first_instance->rw_bitset, q->bit );
    1247       11031 :       if( q->first_instance_was_write ) FD_PACK_BITSET_SETN( q->first_instance->w_bitset, q->bit );
    1248       11031 :     }
    1249             : 
    1250     3081981 :     q->ref_cnt++;
    1251     3081981 :     FD_PACK_BITSET_SETN( ord->rw_bitset, q->bit );
    1252     3081981 :   }
    1253    13581939 :   return cumulative_penalty;
    1254    13581939 : }
    1255             : 
    1256             : int
    1257             : fd_pack_insert_txn_fini( fd_pack_t  * pack,
    1258             :                          fd_txn_e_t * txne,
    1259             :                          ulong        expires_at,
    1260    13581516 :                          ulong      * delete_cnt ) {
    1261    13581516 :   *delete_cnt = 0UL;
    1262             : 
    1263    13581516 :   fd_pack_ord_txn_t * ord = (fd_pack_ord_txn_t *)txne;
    1264             : 
    1265    13581516 :   fd_txn_t * txn   = TXN(txne->txnp);
    1266    13581516 :   uchar * payload  = txne->txnp->payload;
    1267             : 
    1268    13581516 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, payload );
    1269             :   /* alt_adj is the pointer to the ALT expansion, adjusted so that if
    1270             :      account address n is the first that comes from the ALT, it can be
    1271             :      accessed with adj_lut[n]. */
    1272    13581516 :   fd_acct_addr_t const * alt_adj = ord->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1273             : 
    1274    13581516 :   ord->expires_at = expires_at;
    1275             : 
    1276    13581516 :   int est_result = fd_pack_estimate_rewards_and_compute( txne, ord );
    1277    13581516 :   if( FD_UNLIKELY( !est_result ) ) REJECT( ESTIMATION_FAIL );
    1278    13581513 :   int is_vote          = est_result==1;
    1279             : 
    1280    13581513 :   int nonce_result = fd_pack_validate_durable_nonce( txne );
    1281    13581513 :   if( FD_UNLIKELY( !nonce_result ) ) REJECT( INVALID_NONCE );
    1282    13581510 :   int is_durable_nonce = nonce_result==2;
    1283    13581510 :   ord->txn->flags &= ~FD_TXN_P_FLAGS_DURABLE_NONCE;
    1284    13581510 :   ord->txn->flags |= fd_uint_if( is_durable_nonce, FD_TXN_P_FLAGS_DURABLE_NONCE, 0U );
    1285             : 
    1286    13581510 :   int validation_result = validate_transaction( pack, ord, txn, accts, alt_adj, !!pack->bundle_meta_sz );
    1287    13581510 :   if( FD_UNLIKELY( validation_result ) ) {
    1288          99 :     trp_pool_ele_release( pack->pool, ord );
    1289          99 :     return validation_result;
    1290          99 :   }
    1291             : 
    1292             :   /* Reject any transactions that have already expired */
    1293    13581411 :   if( FD_UNLIKELY( expires_at<pack->expire_before                          ) ) REJECT( EXPIRED          );
    1294             : 
    1295    13581399 :   int replaces = 0;
    1296             :   /* If it's a durable nonce and we already have one, delete one or the
    1297             :      other. */
    1298    13581399 :   if( FD_UNLIKELY( is_durable_nonce ) ) {
    1299         120 :     fd_pack_ord_txn_t * same_nonce = noncemap_ele_query( pack->noncemap, txne, NULL, pack->pool );
    1300         120 :     if( FD_LIKELY( same_nonce ) ) { /* Seems like most nonce transactions are effectively duplicates */
    1301           9 :       if( FD_LIKELY( same_nonce->root == FD_ORD_TXN_ROOT_PENDING_BUNDLE || COMPARE_WORSE( ord, same_nonce ) ) ) REJECT( NONCE_PRIORITY );
    1302           3 :       ulong _delete_cnt = delete_transaction( pack, same_nonce, 0, 0 ); /* Not a bundle, so delete_full_bundle is 0 */
    1303           3 :       *delete_cnt += _delete_cnt;
    1304           3 :       replaces = 1;
    1305           3 :     }
    1306         120 :   }
    1307             : 
    1308    13581393 :   if( FD_UNLIKELY( pack->pending_txn_cnt == pack->pack_depth ) ) {
    1309      494592 :     float threshold_score = (float)ord->rewards/(float)ord->compute_est;
    1310      494592 :     ulong _delete_cnt = delete_worst( pack, threshold_score, is_vote );
    1311      494592 :     *delete_cnt += _delete_cnt;
    1312      494592 :     if( FD_UNLIKELY( !_delete_cnt ) ) REJECT( PRIORITY );
    1313      494592 :     replaces = 1;
    1314      494592 :   }
    1315             : 
    1316    13581393 :   ord->txn->flags &= ~(FD_TXN_P_FLAGS_BUNDLE | FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    1317    13581393 :   ord->skip = FD_PACK_SKIP_CNT;
    1318             : 
    1319             :   /* At this point, we know we have space to insert the transaction and
    1320             :      we've committed to insert it. */
    1321             : 
    1322             :   /* Since the pool uses ushorts, the size of the pool is < USHORT_MAX.
    1323             :      Each transaction can reference an account at most once, which means
    1324             :      that the total number of references for an account is < USHORT_MAX.
    1325             :      If these were ulongs, the array would be 512B, which is kind of a
    1326             :      lot to zero out.*/
    1327    13581393 :   ushort penalties[ FD_TXN_ACCT_ADDR_MAX ] = {0};
    1328    13581393 :   uchar  penalty_idx[ FD_TXN_ACCT_ADDR_MAX ];
    1329    13581393 :   ulong cumulative_penalty = populate_bitsets( pack, ord, penalties, penalty_idx );
    1330             : 
    1331    13581393 :   treap_t * insert_into = pack->pending;
    1332             : 
    1333    13581393 :   if( FD_UNLIKELY( cumulative_penalty && !is_vote ) ) { /* Optimize for high parallelism case */
    1334             :     /* Compute a weighted random choice */
    1335      304959 :     ulong roll = (ulong)fd_rng_uint_roll( pack->rng, (uint)cumulative_penalty ); /* cumulative_penalty < USHORT_MAX*64 < UINT_MAX */
    1336      304959 :     ulong i = 0UL;
    1337             :     /* Find the right one.  This can be done in O(log N), but I imagine
    1338             :        N is normally so small that doesn't matter. */
    1339      758568 :     while( roll>=penalties[i] ) roll -= (ulong)penalties[i++];
    1340             : 
    1341      304959 :     fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( penalty_idx[i] );
    1342      304959 :     fd_pack_penalty_treap_t * q = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    1343      304959 :     if( FD_UNLIKELY( q==NULL ) ) {
    1344        2901 :       q = penalty_map_insert( pack->penalty_treaps, penalty_acct );
    1345        2901 :       treap_new( q->penalty_treap, pack->pack_depth );
    1346        2901 :     }
    1347      304959 :     insert_into = q->penalty_treap;
    1348      304959 :     ord->root = FD_ORD_TXN_ROOT_PENALTY( penalty_idx[i] );
    1349    13276434 :   } else {
    1350    13276434 :     ord->root = fd_int_if( is_vote, FD_ORD_TXN_ROOT_PENDING_VOTE, FD_ORD_TXN_ROOT_PENDING );
    1351             : 
    1352    13276434 :     fd_pack_smallest_t * smallest = fd_ptr_if( is_vote, &pack->pending_votes_smallest[0], pack->pending_smallest );
    1353    13276434 :     smallest->cus   = fd_ulong_min( smallest->cus,   ord->compute_est       );
    1354    13276434 :     smallest->bytes = fd_ulong_min( smallest->bytes, txne->txnp->payload_sz );
    1355    13276434 :   }
    1356             : 
    1357    13581393 :   pack->pending_txn_cnt++;
    1358             : 
    1359    13581393 :   sig2txn_ele_insert( pack->signature_map, ord, pack->pool );
    1360             : 
    1361    13581393 :   if( FD_UNLIKELY( is_durable_nonce ) ) noncemap_ele_insert( pack->noncemap, ord, pack->pool );
    1362             : 
    1363    13581393 :   fd_pack_expq_t temp[ 1 ] = {{ .expires_at = expires_at, .txn = ord }};
    1364    13581393 :   expq_insert( pack->expiration_q, temp );
    1365             : 
    1366    13581393 :   if( FD_LIKELY( is_vote ) ) insert_into = pack->pending_votes;
    1367             : 
    1368    13581393 :   treap_ele_insert( insert_into, ord, pack->pool );
    1369    13581393 :   return (is_vote) | (replaces<<1) | (is_durable_nonce<<2);
    1370    13581393 : }
    1371             : #undef REJECT
    1372             : 
    1373             : fd_txn_e_t * const *
    1374             : fd_pack_insert_bundle_init( fd_pack_t          * pack,
    1375             :                             fd_txn_e_t *       * bundle,
    1376         378 :                             ulong                txn_cnt ) {
    1377         378 :   FD_TEST( txn_cnt<=FD_PACK_MAX_TXN_PER_BUNDLE  );
    1378         378 :   FD_TEST( trp_pool_free( pack->pool )>=txn_cnt );
    1379        1962 :   for( ulong i=0UL; i<txn_cnt; i++ ) bundle[ i ] = trp_pool_ele_acquire( pack->pool )->txn_e;
    1380         378 :   return bundle;
    1381         378 : }
    1382             : 
    1383             : void
    1384             : fd_pack_insert_bundle_cancel( fd_pack_t          * pack,
    1385             :                               fd_txn_e_t * const * bundle,
    1386         246 :                               ulong                txn_cnt ) {
    1387             :   /* There's no real reason these have to be released in reverse, but it
    1388             :      seems fitting to release them in the opposite order they were
    1389             :      acquired. */
    1390        1284 :   for( ulong i=0UL; i<txn_cnt; i++ ) trp_pool_ele_release( pack->pool, (fd_pack_ord_txn_t*)bundle[ txn_cnt-1UL-i ] );
    1391         246 : }
    1392             : 
    1393             : /* Explained below */
    1394             : #define BUNDLE_L_PRIME 37896771UL
    1395             : #define BUNDLE_N       312671UL
    1396         147 : #define RC_TO_REL_BUNDLE_IDX( r, c ) (BUNDLE_N - ((ulong)(r) * 1UL<<32)/((ulong)(c) * BUNDLE_L_PRIME))
    1397             : 
    1398             : int
    1399             : fd_pack_insert_bundle_fini( fd_pack_t          * pack,
    1400             :                             fd_txn_e_t * const * bundle,
    1401             :                             ulong                txn_cnt,
    1402             :                             ulong                expires_at,
    1403             :                             int                  initializer_bundle,
    1404             :                             void         const * bundle_meta,
    1405         378 :                             ulong              * delete_cnt ) {
    1406             : 
    1407         378 :   int err = 0;
    1408         378 :   *delete_cnt = 0UL;
    1409             : 
    1410         378 :   ulong pending_b_txn_cnt = treap_ele_cnt( pack->pending_bundles );
    1411             :     /* We want to prevent bundles from consuming the whole treap, but in
    1412             :        general, we assume bundles are lucrative.  We'll set the policy
    1413             :        on capping bundles at half of the pack depth.  We assume that the
    1414             :        bundles are coming in a pre-prioritized order, so it doesn't make
    1415             :        sense to drop an earlier bundle for this one.  That means that
    1416             :        really, the best thing to do is drop this one. */
    1417         378 :   if( FD_UNLIKELY( (!initializer_bundle)&(pending_b_txn_cnt+txn_cnt>pack->pack_depth/2UL) ) ) err = FD_PACK_INSERT_REJECT_PRIORITY;
    1418             : 
    1419         378 :   if( FD_UNLIKELY( expires_at<pack->expire_before                                         ) ) err = FD_PACK_INSERT_REJECT_EXPIRED;
    1420             : 
    1421             : 
    1422         378 :   int   replaces      = 0;
    1423         378 :   ulong nonce_txn_cnt = 0UL;
    1424             : 
    1425             :   /* Collect nonce hashes to detect duplicate nonces.
    1426             :      Use a constant-time duplicate-detection algorithm -- Vacant entries
    1427             :      have the MSB set, occupied entries are the noncemap hash, with the
    1428             :      MSB set to 0. */
    1429         378 :   ulong nonce_hash63[ FD_PACK_MAX_TXN_PER_BUNDLE ];
    1430        2268 :   for( ulong i=0UL; i<FD_PACK_MAX_TXN_PER_BUNDLE; i++ ) {
    1431        1890 :     nonce_hash63[ i ] = ULONG_MAX-i;
    1432        1890 :   }
    1433             : 
    1434        1956 :   for( ulong i=0UL; (i<txn_cnt) && !err; i++ ) {
    1435        1581 :     fd_pack_ord_txn_t * ord = (fd_pack_ord_txn_t *)bundle[ i ];
    1436             : 
    1437        1581 :     fd_txn_t const * txn     = TXN(bundle[ i ]->txnp);
    1438        1581 :     uchar    const * payload = bundle[ i ]->txnp->payload;
    1439             : 
    1440        1581 :     fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, payload );
    1441        1581 :     fd_acct_addr_t const * alt_adj = ord->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1442             : 
    1443        1581 :     int est_result = fd_pack_estimate_rewards_and_compute( bundle[ i ], ord );
    1444        1581 :     if( FD_UNLIKELY( !est_result   ) ) { err = FD_PACK_INSERT_REJECT_ESTIMATION_FAIL; break; }
    1445        1581 :     int nonce_result = fd_pack_validate_durable_nonce( ord->txn_e );
    1446        1581 :     if( FD_UNLIKELY( !nonce_result ) ) { err = FD_PACK_INSERT_REJECT_INVALID_NONCE;   break; }
    1447        1581 :     int is_durable_nonce = nonce_result==2;
    1448        1581 :     nonce_txn_cnt += !!is_durable_nonce;
    1449             : 
    1450        1581 :     bundle[ i ]->txnp->flags |= FD_TXN_P_FLAGS_BUNDLE;
    1451        1581 :     bundle[ i ]->txnp->flags &= ~(FD_TXN_P_FLAGS_INITIALIZER_BUNDLE | FD_TXN_P_FLAGS_DURABLE_NONCE);
    1452        1581 :     bundle[ i ]->txnp->flags |= fd_uint_if( initializer_bundle, FD_TXN_P_FLAGS_INITIALIZER_BUNDLE, 0U );
    1453        1581 :     bundle[ i ]->txnp->flags |= fd_uint_if( is_durable_nonce,   FD_TXN_P_FLAGS_DURABLE_NONCE,      0U );
    1454        1581 :     ord->expires_at = expires_at;
    1455             : 
    1456        1581 :     if( FD_UNLIKELY( is_durable_nonce ) ) {
    1457        1032 :       nonce_hash63[ i ] = noncemap_key_hash( ord->txn_e, pack->noncemap->seed ) & 0x7FFFFFFFFFFFFFFFUL;
    1458        1032 :       fd_pack_ord_txn_t * same_nonce = noncemap_ele_query( pack->noncemap, ord->txn_e, NULL, pack->pool );
    1459        1032 :       if( FD_LIKELY( same_nonce ) ) {
    1460             :         /* bundles take priority over non-bundles, and earlier bundles
    1461             :            take priority over later bundles. */
    1462           6 :         if( FD_UNLIKELY( same_nonce->txn->flags & FD_TXN_P_FLAGS_BUNDLE ) ) {
    1463           3 :           err = FD_PACK_INSERT_REJECT_NONCE_PRIORITY;
    1464           3 :           break;
    1465           3 :         } else {
    1466           3 :           ulong _delete_cnt = delete_transaction( pack, same_nonce, 0, 0 );
    1467           3 :           *delete_cnt += _delete_cnt;
    1468           3 :           replaces = 1;
    1469           3 :         }
    1470           6 :       }
    1471        1032 :     }
    1472             : 
    1473        1578 :     int validation_result = validate_transaction( pack, ord, txn, accts, alt_adj, !initializer_bundle );
    1474        1578 :     if( FD_UNLIKELY( validation_result ) ) { err = validation_result; break; }
    1475        1578 :   }
    1476             : 
    1477         378 :   if( FD_UNLIKELY( err ) ) {
    1478           3 :     fd_pack_insert_bundle_cancel( pack, bundle, txn_cnt );
    1479           3 :     return err;
    1480           3 :   }
    1481             : 
    1482         375 :   if( FD_UNLIKELY( initializer_bundle && pending_b_txn_cnt>0UL ) ) {
    1483           0 :     treap_rev_iter_t _cur=treap_rev_iter_init( pack->pending_bundles, pack->pool );
    1484           0 :     FD_TEST( !treap_rev_iter_done( _cur ) );
    1485           0 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pack->pool );
    1486           0 :     int is_ib = !!(cur->txn->flags & FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    1487             : 
    1488             :     /* Delete the previous IB if there is one */
    1489           0 :     if( FD_UNLIKELY( is_ib && 0UL==RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est ) ) ) {
    1490           0 :       ulong _delete_cnt = delete_transaction( pack, cur, 1, 0 );
    1491           0 :       *delete_cnt += _delete_cnt;
    1492           0 :     }
    1493           0 :   }
    1494             : 
    1495         384 :   while( FD_UNLIKELY( pack->pending_txn_cnt+txn_cnt > pack->pack_depth ) ) {
    1496           9 :     ulong _delete_cnt = delete_worst( pack, FLT_MAX, 0 );
    1497           9 :     *delete_cnt += _delete_cnt;
    1498           9 :     if( FD_UNLIKELY( !_delete_cnt ) ) {
    1499           0 :       fd_pack_insert_bundle_cancel( pack, bundle, txn_cnt );
    1500           0 :       return FD_PACK_INSERT_REJECT_PRIORITY;
    1501           0 :     }
    1502           9 :     replaces = 1;
    1503           9 :   }
    1504             : 
    1505         375 :   if( FD_UNLIKELY( !pending_b_txn_cnt ) ) {
    1506         375 :     pack->relative_bundle_idx = 1UL;
    1507         375 :   }
    1508             : 
    1509         375 :   if( FD_LIKELY( bundle_meta ) ) {
    1510           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 );
    1511           0 :   }
    1512             : 
    1513         375 :   if( FD_UNLIKELY( nonce_txn_cnt>1UL ) ) {
    1514             :     /* Do a ILP-friendly duplicate detect, naive O(n^2) algo.  With max
    1515             :        5 txns per bundle, this requires 10 comparisons.  ~ 25 cycle.  */
    1516         375 :     uint conflict_detected = 0u;
    1517        1875 :     for( ulong i=0UL; i<FD_PACK_MAX_TXN_PER_BUNDLE-1; i++ ) {
    1518        5250 :       for( ulong j=i+1; j<FD_PACK_MAX_TXN_PER_BUNDLE; j++ ) {
    1519        3750 :         ulong const ele_i = nonce_hash63[ i ];
    1520        3750 :         ulong const ele_j = nonce_hash63[ j ];
    1521        3750 :         conflict_detected |= (ele_i==ele_j);
    1522        3750 :       }
    1523        1500 :     }
    1524         375 :     if( FD_UNLIKELY( conflict_detected ) ) {
    1525         243 :       fd_pack_insert_bundle_cancel( pack, bundle, txn_cnt );
    1526         243 :       return FD_PACK_INSERT_REJECT_NONCE_CONFLICT;
    1527         243 :     }
    1528         375 :   }
    1529             : 
    1530             :   /* We put bundles in a treap just like all the other transactions, but
    1531             :      we actually want to sort them in a very specific order; the order
    1532             :      within the bundle is determined at bundle creation time, and the
    1533             :      order among the bundles is FIFO.  However, it's going to be a pain
    1534             :      to use a different sorting function for this treap, since it's
    1535             :      fixed as part of the treap creation for performance.  Don't fear
    1536             :      though; we can pull a cool math trick out of the bag to shoehorn
    1537             :      the order we'd like into the sort function we need, and to get even
    1538             :      more.
    1539             : 
    1540             :      Recall that the sort function is r_i/c_i, smallest to largest,
    1541             :      where r_i is the rewards and c_i is the cost units.  r_i and c_i
    1542             :      are both uints, and the comparison is done by cross-multiplication
    1543             :      as ulongs.  We actually use the c_i value for testing if
    1544             :      transactions fit, etc.  so let's assume that's fixed, and we know
    1545             :      it's in the range [1020, 1,556,782].
    1546             : 
    1547             :      This means, if c_0, c_1, ... c_4 are the CU costs of the
    1548             :      transactions in the first bundle, we require r_0/c_0 > r_1/c_1 >
    1549             :      ... > r_4/c_4.  Then, if c_5, ... c_9 are the CU costs of the
    1550             :      transactions in the second bundle, we also require that r_4/c_4 >
    1551             :      r_5/c_5.  For convenience, we'll impose a slightly stronger
    1552             :      constraint: we want the kth bundle to obey L*(N-k) <= r_i/c_i <
    1553             :      L*(N+1-k), for fixed constants L and N, real and integer,
    1554             :      respectively, that we'll determine. For example, this means r_4/c_4
    1555             :      >= L*N > r_5/c_5.  This enables us to group the transactions in the
    1556             :      same bundle more easily.
    1557             : 
    1558             :      For convenience in the math below, we'll set j=N-k and relabel the
    1559             :      transactions from the jth bundle c_0, ... c_4.
    1560             :      From above, we know that Lj <= r_4/c_4.  We'd like to make it as
    1561             :      close as possible given that r_4 is an integers.  Thus, put
    1562             :      r_4 = ceil( c_4 * Lj ).  r_4 is clearly an integer, and it satisfies
    1563             :      the required inequality because:
    1564             :             r_4/c_4 = ceil( c_4 * Lj)/c_4 >= c_4*Lj / c_4 >= Lj.
    1565             : 
    1566             :      Following in the same spirit, put r_3 = ceil( c_3 * (r_4+1)/c_4 ).
    1567             :      Again, r_3 is clearly an integer, and
    1568             :                 r_3/c_3  = ceil(c_3*(r_4+1)/c_4)/c_3
    1569             :                         >= (c_3*(r_4+1))/(c_3 * c_4)
    1570             :                         >= r_4/c_4 + 1/c_4
    1571             :                         >  r_4/c_4.
    1572             :      Following the pattern, we put
    1573             :                 r_2 = ceil( c_2 * (r_3+1)/c_3 )
    1574             :                 r_1 = ceil( c_1 * (r_2+1)/c_2 )
    1575             :                 r_0 = ceil( c_0 * (r_1+1)/c_1 )
    1576             :      which work for the same reason that as r_3.
    1577             : 
    1578             :      We now need for r_0 to satisfy the final inequality with L, and
    1579             :      we'll use this to guide our choice of L.  Theoretically, r_0 can be
    1580             :      expressed in terms of L, j, and c_0, ... c_4, but that's a truly
    1581             :      inscrutible expression.  Instead, we need some bounds so we can get
    1582             :      rid of all the ceil using the property that x <= ceil(x) < x+1.
    1583             :                      c_4 * Lj <= r_4 < c_4 * Lj + 1
    1584             :      The lower bound on r_3 is easy:
    1585             :          r_3 >= c_3 * (c_4 * Lj + 1)/c_4 = c_3 * Lj + c_3/c_4
    1586             :      For the upper bound,
    1587             :          r_3 < 1 + c_3*(r_4+1)/c_4 < 1 + c_3*(c_4*Lj+1 + 1)/c_4
    1588             :                                    = 1 + c_3 * Lj + 2*c_3/c_4
    1589             :      Continuing similarly gives
    1590             :        c_2*Lj +                     c_2/c_3 + c_2/c_4 <= r_2
    1591             :        c_1*Lj +           c_1/c_2 + c_1/c_c + c_1/c_4 <= r_1
    1592             :        c_0*Lj + c_0/c_1 + c_0/c_2 + c_0/c_3 + c_0/c_4 <= r_0
    1593             :      and
    1594             :        r_2 < 1 + c_2*Lj +                       2c_2/c_3 + 2c_2/c_4
    1595             :        r_1 < 1 + c_1*Lj +            2c_1/c_2 + 2c_1/c_3 + 2c_1/c_4
    1596             :        r_0 < 1 + c_0*Lj + 2c_0/c_1 + 2c_0/c_2 + 2c_0/c_3 + 2c_0/c_4.
    1597             : 
    1598             :      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
    1599             :      is then sufficient to ensure the whole sequence of 5 fits between Lj
    1600             :      and L(j+1).  Simplifying gives
    1601             :               L<= 1/c_0 + 2/c_1 + 2/c_2 + 2/c_3 + 2/c_4
    1602             :      but L must be a constant and not depend on individual values of c_i,
    1603             :      so, given that c_i >= 1020, we set L = 9/1020.
    1604             : 
    1605             :      Now all that remains is to determine N.  It's a bit unfortunate
    1606             :      that we require N, since it limits our capacity, but it's necessary
    1607             :      in any system that tries to compute priorities to enforce a FIFO
    1608             :      order.  If we've inserted more than N bundles without ever having
    1609             :      the bundle treap go empty, we'll briefly break the FIFO ordering as
    1610             :      we underflow.
    1611             : 
    1612             :      Thus, we'd like to make N as big as possible, avoiding overflow.
    1613             :      r_0, ..., r_4 are all uints, and taking the bounds from above,
    1614             :      given that for any i, i' c_i/c_{i'} < 1527, we have
    1615             :                r_i < 1 + 1556782 * Lj + 8*1527.
    1616             :      To avoid overflow, we assert the right-hand side is < 2^32, which
    1617             :      implies N <= 312671.
    1618             : 
    1619             :      We want to use a fixed point representation for L so that the
    1620             :      entire computation can be done with integer arithmetic.  We can do
    1621             :      the arithmetic as ulongs, which means defining L' >= L * 2^s, and
    1622             :      we compute ceil( c_4*Lj ) as floor( (c_4 * L' * j + 2^s - 1)/2^s ),
    1623             :      so c_4 * L' * j + 2^s should fit in a ulong.  With j<=N, this gives
    1624             :      s<=32, so we set s=32, which means L' = 37896771 >= 9/1020 * 2^32.
    1625             :      Note that 1 + 1556782 * L' * N + 8*1527 + 2^32 is approximately
    1626             :      2^63.999993.
    1627             : 
    1628             :      Note that this is all checked by a proof of the code translated
    1629             :      into Z3.  Unfortunately CBMC was too slow to prove this code
    1630             :      directly. */
    1631         279 : #define BUNDLE_L_PRIME 37896771UL
    1632         279 : #define BUNDLE_N       312671UL
    1633             : 
    1634         132 :   if( FD_UNLIKELY( pack->relative_bundle_idx>BUNDLE_N ) ) {
    1635           0 :     FD_LOG_WARNING(( "Too many bundles inserted without allowing pending bundles to go empty. "
    1636           0 :                      "Ordering of bundles may be incorrect." ));
    1637           0 :     pack->relative_bundle_idx = 1UL;
    1638           0 :   }
    1639         132 :   ulong bundle_idx = fd_ulong_if( initializer_bundle, 0UL, pack->relative_bundle_idx );
    1640         132 :   insert_bundle_impl( pack, bundle_idx, txn_cnt, (fd_pack_ord_txn_t * *)bundle, expires_at );
    1641             :   /* if IB this is max( 1, x ), which is x.  Otherwise, this is max(x,
    1642             :      x+1) which is x++ */
    1643         132 :   pack->relative_bundle_idx = fd_ulong_max( bundle_idx+1UL, pack->relative_bundle_idx );
    1644             : 
    1645         132 :   return (0) | (replaces<<1) | ((!!nonce_txn_cnt)<<2);
    1646         375 : }
    1647             : static inline void
    1648             : insert_bundle_impl( fd_pack_t           * pack,
    1649             :                     ulong                 bundle_idx,
    1650             :                     ulong                 txn_cnt,
    1651             :                     fd_pack_ord_txn_t * * bundle,
    1652         132 :                     ulong                 expires_at ) {
    1653         132 :   ulong prev_reward = ((BUNDLE_L_PRIME * (BUNDLE_N - bundle_idx))) - 1UL;
    1654         132 :   ulong prev_cost = 1UL<<32;
    1655             : 
    1656             :   /* Assign last to first */
    1657         678 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
    1658         546 :     fd_pack_ord_txn_t * ord = bundle[ txn_cnt-1UL - i ];
    1659         546 :     ord->rewards = (uint)(((ulong)ord->compute_est * (prev_reward + 1UL) + prev_cost-1UL)/prev_cost);
    1660         546 :     ord->root    = FD_ORD_TXN_ROOT_PENDING_BUNDLE;
    1661         546 :     prev_reward = ord->rewards;
    1662         546 :     prev_cost   = ord->compute_est;
    1663             : 
    1664             :     /* The penalty information isn't used for bundles. */
    1665         546 :     ushort penalties  [ FD_TXN_ACCT_ADDR_MAX ];
    1666         546 :     uchar  penalty_idx[ FD_TXN_ACCT_ADDR_MAX ];
    1667         546 :     populate_bitsets( pack, ord, penalties, penalty_idx );
    1668             : 
    1669         546 :     treap_ele_insert( pack->pending_bundles, ord, pack->pool );
    1670         546 :     pack->pending_txn_cnt++;
    1671             : 
    1672         546 :     if( FD_UNLIKELY( ord->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) noncemap_ele_insert( pack->noncemap, ord, pack->pool );
    1673         546 :     sig2txn_ele_insert( pack->signature_map, ord, pack->pool );
    1674             : 
    1675         546 :     fd_pack_expq_t temp[ 1 ] = {{ .expires_at = expires_at, .txn = ord }};
    1676         546 :     expq_insert( pack->expiration_q, temp );
    1677         546 :   }
    1678             : 
    1679         132 : }
    1680             : 
    1681             : void const *
    1682           0 : fd_pack_peek_bundle_meta( fd_pack_t const * pack ) {
    1683           0 :   int ib_state = pack->initializer_bundle_state;
    1684           0 :   if( FD_UNLIKELY( (ib_state==FD_PACK_IB_STATE_PENDING) | (ib_state==FD_PACK_IB_STATE_FAILED) ) ) return NULL;
    1685             : 
    1686           0 :   treap_rev_iter_t _cur=treap_rev_iter_init( pack->pending_bundles, pack->pool );
    1687           0 :   if( FD_UNLIKELY( treap_rev_iter_done( _cur ) ) ) return NULL; /* empty */
    1688             : 
    1689           0 :   fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pack->pool );
    1690           0 :   int is_ib = !!(cur->txn->flags & FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    1691           0 :   if( FD_UNLIKELY( is_ib ) ) return NULL;
    1692             : 
    1693           0 :   return (void const *)((uchar const *)pack->bundle_meta + (ulong)_cur * pack->bundle_meta_sz);
    1694           0 : }
    1695             : 
    1696             : void
    1697           3 : fd_pack_set_initializer_bundles_ready( fd_pack_t * pack ) {
    1698           3 :   pack->initializer_bundle_state = FD_PACK_IB_STATE_READY;
    1699           3 : }
    1700             : 
    1701             : void
    1702      752907 : fd_pack_metrics_write( fd_pack_t const * pack ) {
    1703      752907 :   ulong pending_regular = treap_ele_cnt( pack->pending        );
    1704      752907 :   ulong pending_votes  = treap_ele_cnt( pack->pending_votes   );
    1705      752907 :   ulong pending_bundle = treap_ele_cnt( pack->pending_bundles );
    1706      752907 :   ulong conflicting    = pack->pending_txn_cnt - pending_votes - pending_bundle - treap_ele_cnt( pack->pending );
    1707      752907 :   FD_MGAUGE_SET( PACK, AVAILABLE_TRANSACTIONS_ALL,         pack->pending_txn_cnt       );
    1708      752907 :   FD_MGAUGE_SET( PACK, AVAILABLE_TRANSACTIONS_REGULAR,     pending_regular             );
    1709      752907 :   FD_MGAUGE_SET( PACK, AVAILABLE_TRANSACTIONS_VOTES,       pending_votes               );
    1710      752907 :   FD_MGAUGE_SET( PACK, AVAILABLE_TRANSACTIONS_CONFLICTING, conflicting                 );
    1711      752907 :   FD_MGAUGE_SET( PACK, AVAILABLE_TRANSACTIONS_BUNDLES,     pending_bundle              );
    1712      752907 :   FD_MGAUGE_SET( PACK, SMALLEST_PENDING_TRANSACTION,       pack->pending_smallest->cus );
    1713             : 
    1714      752907 :   FD_MCNT_ENUM_COPY( PACK, TRANSACTION_SCHEDULE, pack->sched_results );
    1715      752907 : }
    1716             : 
    1717             : void
    1718           0 : fd_pack_get_sched_metrics( fd_pack_t const * pack, ulong * metrics ) {
    1719           0 :   fd_memcpy( metrics, pack->sched_results, sizeof(pack->sched_results) );
    1720           0 : }
    1721             : 
    1722             : typedef struct {
    1723             :   ushort clear_rw_bit;
    1724             :   ushort clear_w_bit;
    1725             : } release_result_t;
    1726             : 
    1727             : static inline release_result_t
    1728             : release_bit_reference( fd_pack_t            * pack,
    1729    17844495 :                        fd_acct_addr_t const * acct ) {
    1730             : 
    1731    17844495 :   fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, *acct, NULL );
    1732    17844495 :   FD_TEST( q ); /* q==NULL not be possible */
    1733             : 
    1734    17844495 :   q->ref_cnt--;
    1735             : 
    1736    17844495 :   if( FD_UNLIKELY( q->ref_cnt==0UL ) ) {
    1737    13305680 :     ushort bit = q->bit;
    1738    13305680 :     bitset_map_remove( pack->acct_to_bitset, q );
    1739    13305680 :     if( FD_LIKELY( bit<FD_PACK_BITSET_MAX ) ) pack->bitset_avail[ ++(pack->bitset_avail_cnt) ] = bit;
    1740             : 
    1741    13305680 :     fd_pack_addr_use_t * use = acct_uses_query( pack->acct_in_use,  *acct, NULL );
    1742    13305680 :     if( FD_LIKELY( use ) ) {
    1743    12809616 :       use->in_use_by |= FD_PACK_IN_USE_BIT_CLEARED;
    1744    12809616 :       release_result_t ret = { .clear_rw_bit = bit,
    1745    12809616 :                                .clear_w_bit = fd_ushort_if( !!(use->in_use_by & FD_PACK_IN_USE_WRITABLE), bit, FD_PACK_BITSET_MAX ) };
    1746    12809616 :       return ret;
    1747    12809616 :     }
    1748    13305680 :   }
    1749     5034879 :   release_result_t ret = { .clear_rw_bit = FD_PACK_BITSET_MAX, .clear_w_bit = FD_PACK_BITSET_MAX };
    1750     5034879 :   return ret;
    1751    17844495 : }
    1752             : 
    1753             : typedef struct {
    1754             :   ulong cus_scheduled;
    1755             :   ulong txns_scheduled;
    1756             :   ulong bytes_scheduled;
    1757             : } sched_return_t;
    1758             : 
    1759             : static inline sched_return_t
    1760             : fd_pack_schedule_impl( fd_pack_t          * pack,
    1761             :                        treap_t            * sched_from,
    1762             :                        ulong                cu_limit,
    1763             :                        ulong                txn_limit,
    1764             :                        ulong                byte_limit,
    1765             :                        ulong                bank_tile,
    1766             :                        fd_pack_smallest_t * smallest_in_treap,
    1767             :                        ulong              * use_by_bank_txn,
    1768     1505721 :                        fd_txn_p_t         * out ) {
    1769             : 
    1770     1505721 :   fd_pack_ord_txn_t  * pool         = pack->pool;
    1771     1505721 :   fd_pack_addr_use_t * acct_in_use  = pack->acct_in_use;
    1772     1505721 :   fd_pack_addr_use_t * writer_costs = pack->writer_costs;
    1773             : 
    1774     1505721 :   fd_pack_addr_use_t ** written_list     = pack->written_list;
    1775     1505721 :   ulong                 written_list_cnt = pack->written_list_cnt;
    1776     1505721 :   ulong                 written_list_max = pack->written_list_max;
    1777             : 
    1778     1505721 :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
    1779     1505721 :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
    1780     1505721 :   FD_PACK_BITSET_COPY( bitset_rw_in_use, pack->bitset_rw_in_use );
    1781     1505721 :   FD_PACK_BITSET_COPY( bitset_w_in_use,  pack->bitset_w_in_use  );
    1782             : 
    1783     1505721 :   fd_pack_addr_use_t * use_by_bank     = pack->use_by_bank    [bank_tile];
    1784     1505721 :   ulong                use_by_bank_cnt = pack->use_by_bank_cnt[bank_tile];
    1785             : 
    1786     1505721 :   ulong max_write_cost_per_acct = pack->lim->max_write_cost_per_acct;
    1787             : 
    1788     1505721 :   ushort compressed_slot_number = pack->compressed_slot_number;
    1789             : 
    1790     1505721 :   ulong txns_scheduled  = 0UL;
    1791     1505721 :   ulong cus_scheduled   = 0UL;
    1792     1505721 :   ulong bytes_scheduled = 0UL;
    1793             : 
    1794     1505721 :   ulong bank_tile_mask = 1UL << bank_tile;
    1795             : 
    1796     1505721 :   ulong fast_path     = 0UL;
    1797     1505721 :   ulong slow_path     = 0UL;
    1798     1505721 :   ulong cu_limit_c    = 0UL;
    1799     1505721 :   ulong byte_limit_c  = 0UL;
    1800     1505721 :   ulong write_limit_c = 0UL;
    1801     1505721 :   ulong skip_c        = 0UL;
    1802             : 
    1803     1505721 :   ulong min_cus   = ULONG_MAX;
    1804     1505721 :   ulong min_bytes = ULONG_MAX;
    1805             : 
    1806     1505721 :   if( FD_UNLIKELY( (cu_limit<smallest_in_treap->cus) | (txn_limit==0UL) | (byte_limit<smallest_in_treap->bytes) ) ) {
    1807      814176 :     sched_return_t to_return = { .cus_scheduled = 0UL, .txns_scheduled = 0UL, .bytes_scheduled = 0UL };
    1808      814176 :     return to_return;
    1809      814176 :   }
    1810             : 
    1811      691545 :   treap_rev_iter_t prev = treap_idx_null();
    1812    23924139 :   for( treap_rev_iter_t _cur=treap_rev_iter_init( sched_from, pool ); !treap_rev_iter_done( _cur ); _cur=prev ) {
    1813             :     /* Capture next so that we can delete while we iterate. */
    1814    23838804 :     prev = treap_rev_iter_next( _cur, pool );
    1815             : 
    1816    23838804 : #   if FD_HAS_X86
    1817    23838804 :     _mm_prefetch( &(pool[ prev ].prev),      _MM_HINT_T0 );
    1818    23838804 : #   endif
    1819             : 
    1820    23838804 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    1821             : 
    1822    23838804 :     min_cus   = fd_ulong_min( min_cus,   cur->compute_est     );
    1823    23838804 :     min_bytes = fd_ulong_min( min_bytes, cur->txn->payload_sz );
    1824             : 
    1825    23838804 :     ulong conflicts = 0UL;
    1826             : 
    1827    23838804 :     if( FD_UNLIKELY( cur->compute_est>cu_limit ) ) {
    1828             :       /* Too big to be scheduled at the moment, but might be okay for
    1829             :          the next microblock, so we don't want to delay it. */
    1830           0 :       cu_limit_c++;
    1831           0 :       continue;
    1832           0 :     }
    1833             : 
    1834             :     /* Likely? Unlikely? */
    1835    23838804 :     if( FD_LIKELY( !FD_PACK_BITSET_INTERSECT4_EMPTY( bitset_rw_in_use, bitset_w_in_use, cur->w_bitset, cur->rw_bitset ) ) ) {
    1836    10752822 :       fast_path++;
    1837    10752822 :       continue;
    1838    10752822 :     }
    1839             : 
    1840    13085982 :     if( FD_UNLIKELY( cur->skip==compressed_slot_number ) ) {
    1841           0 :       skip_c++;
    1842           0 :       continue;
    1843           0 :     }
    1844             : 
    1845             :     /* If skip>FD_PACK_MAX_SKIP but not compressed_slot_number, it means
    1846             :        it's the compressed slot number of a previous slot.  We don't
    1847             :        care unless we're going to update the value though, so we don't
    1848             :        need to eagerly reset it to FD_PACK_MAX_SKIP.
    1849             :        compressed_slot_number is a ushort, so it's possible for it to
    1850             :        roll over, but the transaction lifetime is much shorter than
    1851             :        that, so it won't be a problem. */
    1852             : 
    1853    13085982 :     if( FD_UNLIKELY( cur->txn->payload_sz>byte_limit ) ) {
    1854           6 :       byte_limit_c++;
    1855           6 :       continue;
    1856           6 :     }
    1857             : 
    1858             : 
    1859    13085976 :     fd_txn_t const * txn = TXN(cur->txn);
    1860    13085976 :     fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, cur->txn->payload );
    1861    13085976 :     fd_acct_addr_t const * alt_adj = cur->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    1862             :     /* Check conflicts between this transaction's writable accounts and
    1863             :        current readers */
    1864    13085976 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    1865    27342129 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1866             : 
    1867    14256156 :       fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    1868             : 
    1869    14256156 :       fd_pack_addr_use_t * in_wcost_table = acct_uses_query( writer_costs, acct, NULL );
    1870    14256156 :       if( FD_UNLIKELY( in_wcost_table && in_wcost_table->total_cost+cur->compute_est > max_write_cost_per_acct ) ) {
    1871             :         /* Can't be scheduled until the next block */
    1872           3 :         conflicts = ULONG_MAX;
    1873           3 :         break;
    1874           3 :       }
    1875             : 
    1876    14256153 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use, acct, NULL );
    1877    14256153 :       if( FD_UNLIKELY( use ) ) conflicts |= use->in_use_by; /* break? */
    1878    14256153 :     }
    1879             : 
    1880    13085976 :     if( FD_UNLIKELY( conflicts==ULONG_MAX ) ) {
    1881             :       /* The logic for how to adjust skip is a bit complicated, and we
    1882             :          want to do it branchlessly. Let psc=FD_PACK_SKIP_CNT,
    1883             :            Before                   After
    1884             :              1               compressed_slot_number
    1885             :            x in [2, psc]             x-1
    1886             :            x where x>psc            psc-1
    1887             : 
    1888             :          Set A=min(x, 5), B=min(A-2, compressed_slot_number-1), and
    1889             :          note that compressed_slot_number is in [psc+1, USHORT_MAX].
    1890             :          Then:
    1891             :              x                A     A-2          B      B+1
    1892             :              1                1  USHORT_MAX    csn-1    csn
    1893             :            x in [2, psc]      x     x-2         x-2     x-1
    1894             :            x where x>psc     psc   psc-2       psc-2   psc-1
    1895             :          So B+1 is the desired value. */
    1896           3 :       cur->skip = (ushort)(1+fd_ushort_min( (ushort)(compressed_slot_number-1),
    1897           3 :                                             (ushort)(fd_ushort_min( cur->skip, FD_PACK_SKIP_CNT )-2) ) );
    1898           3 :       write_limit_c++;
    1899           3 :       continue;
    1900           3 :     }
    1901             : 
    1902    13085973 :     if( FD_UNLIKELY( conflicts ) ) {
    1903           6 :       slow_path++;
    1904           6 :       continue;
    1905           6 :     }
    1906             : 
    1907             :     /* Check conflicts between this transaction's readonly accounts and
    1908             :        current writers */
    1909    13085967 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    1910    16657371 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1911             : 
    1912     3571404 :       fd_acct_addr_t const * acct = ACCT_ITER_TO_PTR( iter );
    1913     3571404 :       if( fd_pack_unwritable_contains( acct ) ) continue; /* No need to track sysvars because they can't be writable */
    1914             : 
    1915     2576115 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use,  *acct, NULL );
    1916     2576115 :       if( use ) conflicts |= (use->in_use_by & FD_PACK_IN_USE_WRITABLE) ? use->in_use_by : 0UL;
    1917     2576115 :     }
    1918             : 
    1919    13085967 :     if( FD_UNLIKELY( conflicts ) ) {
    1920           0 :       slow_path++;
    1921           0 :       continue;
    1922           0 :     }
    1923             : 
    1924             :     /* Include this transaction in the microblock! */
    1925    13085967 :     FD_PACK_BITSET_OR( bitset_rw_in_use, cur->rw_bitset );
    1926    13085967 :     FD_PACK_BITSET_OR( bitset_w_in_use,  cur->w_bitset  );
    1927             : 
    1928    13085967 :     if(
    1929     4361989 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    1930     4361989 :         FD_LIKELY( cur->txn->payload_sz>=1024UL )
    1931             : #else
    1932     8723978 :         0
    1933     8723978 : #endif
    1934    13085967 :       ) {
    1935        4224 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    1936        4224 :       _mm512_stream_si512( (void*)(out->payload+   0UL), _mm512_load_epi64( cur->txn->payload+   0UL ) );
    1937        4224 :       _mm512_stream_si512( (void*)(out->payload+  64UL), _mm512_load_epi64( cur->txn->payload+  64UL ) );
    1938        4224 :       _mm512_stream_si512( (void*)(out->payload+ 128UL), _mm512_load_epi64( cur->txn->payload+ 128UL ) );
    1939        4224 :       _mm512_stream_si512( (void*)(out->payload+ 192UL), _mm512_load_epi64( cur->txn->payload+ 192UL ) );
    1940        4224 :       _mm512_stream_si512( (void*)(out->payload+ 256UL), _mm512_load_epi64( cur->txn->payload+ 256UL ) );
    1941        4224 :       _mm512_stream_si512( (void*)(out->payload+ 320UL), _mm512_load_epi64( cur->txn->payload+ 320UL ) );
    1942        4224 :       _mm512_stream_si512( (void*)(out->payload+ 384UL), _mm512_load_epi64( cur->txn->payload+ 384UL ) );
    1943        4224 :       _mm512_stream_si512( (void*)(out->payload+ 448UL), _mm512_load_epi64( cur->txn->payload+ 448UL ) );
    1944        4224 :       _mm512_stream_si512( (void*)(out->payload+ 512UL), _mm512_load_epi64( cur->txn->payload+ 512UL ) );
    1945        4224 :       _mm512_stream_si512( (void*)(out->payload+ 576UL), _mm512_load_epi64( cur->txn->payload+ 576UL ) );
    1946        4224 :       _mm512_stream_si512( (void*)(out->payload+ 640UL), _mm512_load_epi64( cur->txn->payload+ 640UL ) );
    1947        4224 :       _mm512_stream_si512( (void*)(out->payload+ 704UL), _mm512_load_epi64( cur->txn->payload+ 704UL ) );
    1948        4224 :       _mm512_stream_si512( (void*)(out->payload+ 768UL), _mm512_load_epi64( cur->txn->payload+ 768UL ) );
    1949        4224 :       _mm512_stream_si512( (void*)(out->payload+ 832UL), _mm512_load_epi64( cur->txn->payload+ 832UL ) );
    1950        4224 :       _mm512_stream_si512( (void*)(out->payload+ 896UL), _mm512_load_epi64( cur->txn->payload+ 896UL ) );
    1951        4224 :       _mm512_stream_si512( (void*)(out->payload+ 960UL), _mm512_load_epi64( cur->txn->payload+ 960UL ) );
    1952        4224 :       _mm512_stream_si512( (void*)(out->payload+1024UL), _mm512_load_epi64( cur->txn->payload+1024UL ) );
    1953        4224 :       _mm512_stream_si512( (void*)(out->payload+1088UL), _mm512_load_epi64( cur->txn->payload+1088UL ) );
    1954        4224 :       _mm512_stream_si512( (void*)(out->payload+1152UL), _mm512_load_epi64( cur->txn->payload+1152UL ) );
    1955        4224 :       _mm512_stream_si512( (void*)(out->payload+1216UL), _mm512_load_epi64( cur->txn->payload+1216UL ) );
    1956             :       /* Copied out to 1280 bytes, which copies some other fields we needed to
    1957             :          copy anyway. */
    1958        4224 :       FD_STATIC_ASSERT( offsetof(fd_txn_p_t, payload_sz     )+sizeof(((fd_txn_p_t*)NULL)->payload_sz    )<=1280UL, nt_memcpy );
    1959        4224 :       FD_STATIC_ASSERT( offsetof(fd_txn_p_t, blockhash_slot )+sizeof(((fd_txn_p_t*)NULL)->blockhash_slot)<=1280UL, nt_memcpy );
    1960        4224 :       FD_STATIC_ASSERT( offsetof(fd_txn_p_t, scheduler_arrival_time_nanos )+sizeof(((fd_txn_p_t*)NULL)->scheduler_arrival_time_nanos )<=1280UL, nt_memcpy );
    1961        4224 :       FD_STATIC_ASSERT( offsetof(fd_txn_p_t, source_tpu     )+sizeof(((fd_txn_p_t*)NULL)->source_tpu    )<=1280UL, nt_memcpy );
    1962        4224 :       FD_STATIC_ASSERT( offsetof(fd_txn_p_t, source_ipv4    )+sizeof(((fd_txn_p_t*)NULL)->source_ipv4   )<=1280UL, nt_memcpy );
    1963        4224 :       FD_STATIC_ASSERT( offsetof(fd_txn_p_t, flags          )+sizeof(((fd_txn_p_t*)NULL)->flags         )<=1280UL, nt_memcpy );
    1964        4224 :       FD_STATIC_ASSERT( offsetof(fd_txn_p_t, _              )                                            <=1280UL, nt_memcpy );
    1965        4224 :       const ulong offset_into_txn = 1280UL - offsetof(fd_txn_p_t, _ );
    1966        4224 :       fd_memcpy( offset_into_txn+(uchar *)TXN(out), offset_into_txn+(uchar const *)txn,
    1967        4224 :           fd_ulong_max( offset_into_txn, fd_txn_footprint( txn->instr_cnt, txn->addr_table_lookup_cnt ) )-offset_into_txn );
    1968        4224 : #endif
    1969    13081743 :     } else {
    1970    13081743 :       fd_memcpy( out->payload, cur->txn->payload, cur->txn->payload_sz                                           );
    1971    13081743 :       fd_memcpy( TXN(out),     txn,               fd_txn_footprint( txn->instr_cnt, txn->addr_table_lookup_cnt ) );
    1972    13081743 :       out->payload_sz                      = cur->txn->payload_sz;
    1973    13081743 :       out->pack_cu.requested_exec_plus_acct_data_cus = cur->txn->pack_cu.requested_exec_plus_acct_data_cus;
    1974    13081743 :       out->pack_cu.non_execution_cus       = cur->txn->pack_cu.non_execution_cus;
    1975    13081743 :       out->scheduler_arrival_time_nanos    = cur->txn->scheduler_arrival_time_nanos;
    1976    13081743 :       out->source_tpu                      = cur->txn->source_tpu;
    1977    13081743 :       out->source_ipv4                     = cur->txn->source_ipv4;
    1978    13081743 :       out->flags                           = cur->txn->flags;
    1979    13081743 :     }
    1980    13085967 :     out++;
    1981             : 
    1982    13085967 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    1983    27342105 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    1984    14256138 :       fd_acct_addr_t acct_addr = *ACCT_ITER_TO_PTR( iter );
    1985             : 
    1986    14256138 :       fd_pack_addr_use_t * in_wcost_table = acct_uses_query( writer_costs, acct_addr, NULL );
    1987    14256138 :       if( !in_wcost_table ) {
    1988      793968 :         in_wcost_table = acct_uses_insert( writer_costs, acct_addr );
    1989      793968 :         in_wcost_table->total_cost = 0UL;
    1990      793968 :         written_list[ written_list_cnt ] = in_wcost_table;
    1991      793968 :         written_list_cnt = fd_ulong_min( written_list_cnt+1UL, written_list_max-1UL );
    1992      793968 :       }
    1993    14256138 :       in_wcost_table->total_cost += cur->compute_est;
    1994             : 
    1995    14256138 :       fd_pack_addr_use_t * use = acct_uses_insert( acct_in_use, acct_addr );
    1996    14256138 :       use->in_use_by = bank_tile_mask | FD_PACK_IN_USE_WRITABLE;
    1997             : 
    1998    14256138 :       use_by_bank[use_by_bank_cnt++] = *use;
    1999             : 
    2000             :       /* If there aren't any more references to this account in the
    2001             :          heap, it can't cause any conflicts.  That means we actually
    2002             :          don't need to record that we are using it, which is good
    2003             :          because we want to release the bit. */
    2004    14256138 :       release_result_t ret = release_bit_reference( pack, &acct_addr );
    2005    14256138 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, ret.clear_rw_bit );
    2006    14256138 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  ret.clear_w_bit  );
    2007    14256138 :     }
    2008    13085967 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    2009    16657371 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2010             : 
    2011     3571404 :       fd_acct_addr_t acct_addr = *ACCT_ITER_TO_PTR( iter );
    2012             : 
    2013     3571404 :       if( fd_pack_unwritable_contains( &acct_addr ) ) continue; /* No need to track sysvars because they can't be writable */
    2014             : 
    2015     2576115 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use,  acct_addr, NULL );
    2016     2576115 :       if( !use ) { use = acct_uses_insert( acct_in_use, acct_addr ); use->in_use_by = 0UL; }
    2017             : 
    2018     2576115 :       if( !(use->in_use_by & bank_tile_mask) ) use_by_bank[use_by_bank_cnt++] = *use;
    2019     2576115 :       use->in_use_by |= bank_tile_mask;
    2020     2576115 :       use->in_use_by &= ~FD_PACK_IN_USE_BIT_CLEARED;
    2021             : 
    2022             : 
    2023     2576115 :       release_result_t ret = release_bit_reference( pack, &acct_addr );
    2024     2576115 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, ret.clear_rw_bit );
    2025     2576115 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  ret.clear_w_bit  );
    2026     2576115 :     }
    2027             : 
    2028    13085967 :     txns_scheduled  += 1UL;                      txn_limit       -= 1UL;
    2029    13085967 :     cus_scheduled   += cur->compute_est;         cu_limit        -= cur->compute_est;
    2030    13085967 :     bytes_scheduled += cur->txn->payload_sz;     byte_limit      -= cur->txn->payload_sz;
    2031             : 
    2032    13085967 :     *(use_by_bank_txn++) = use_by_bank_cnt;
    2033             : 
    2034    13085967 :     if( FD_UNLIKELY( cur->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) noncemap_ele_remove_fast( pack->noncemap, cur, pack->pool );
    2035    13085967 :     sig2txn_ele_remove_fast( pack->signature_map, cur, pool );
    2036             : 
    2037    13085967 :     cur->root = FD_ORD_TXN_ROOT_FREE;
    2038    13085967 :     expq_remove( pack->expiration_q, cur->expq_idx );
    2039    13085967 :     treap_idx_remove( sched_from, _cur, pool );
    2040    13085967 :     trp_pool_idx_release( pool, _cur );
    2041    13085967 :     pack->pending_txn_cnt--;
    2042             : 
    2043    13085967 :     if( FD_UNLIKELY( (cu_limit<smallest_in_treap->cus) | (txn_limit==0UL) | (byte_limit<smallest_in_treap->bytes) ) ) break;
    2044    13085967 :   }
    2045             : 
    2046      691545 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_TAKEN_IDX      ] += txns_scheduled;
    2047      691545 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_CU_LIMIT_IDX   ] += cu_limit_c;
    2048      691545 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_FAST_PATH_IDX  ] += fast_path;
    2049      691545 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_BYTE_LIMIT_IDX ] += byte_limit_c;
    2050      691545 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_WRITE_COST_IDX ] += write_limit_c;
    2051      691545 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_SLOW_PATH_IDX  ] += slow_path;
    2052      691545 :   pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_DEFER_SKIP_IDX ] += skip_c;
    2053             : 
    2054             :   /* If we scanned the whole treap and didn't break early, we now have a
    2055             :      better estimate of the smallest. */
    2056      691545 :   if( FD_UNLIKELY( treap_rev_iter_done( prev ) ) ) {
    2057       88386 :     smallest_in_treap->cus   = min_cus;
    2058       88386 :     smallest_in_treap->bytes = min_bytes;
    2059       88386 :   }
    2060             : 
    2061      691545 :   pack->use_by_bank_cnt[bank_tile] = use_by_bank_cnt;
    2062      691545 :   FD_PACK_BITSET_COPY( pack->bitset_rw_in_use, bitset_rw_in_use );
    2063      691545 :   FD_PACK_BITSET_COPY( pack->bitset_w_in_use,  bitset_w_in_use  );
    2064             : 
    2065      691545 :   pack->written_list_cnt = written_list_cnt;
    2066             : 
    2067      691545 :   sched_return_t to_return = { .cus_scheduled=cus_scheduled, .txns_scheduled=txns_scheduled, .bytes_scheduled=bytes_scheduled };
    2068      691545 :   return to_return;
    2069     1505721 : }
    2070             : 
    2071             : int
    2072             : fd_pack_microblock_complete( fd_pack_t * pack,
    2073      752913 :                              ulong       bank_tile ) {
    2074             :   /* If the account is in use writably, and it's in use by this banking
    2075             :      tile, then this banking tile must be the sole writer to it, so it's
    2076             :      always okay to clear the writable bit. */
    2077      752913 :   ulong clear_mask = ~((1UL<<bank_tile) | FD_PACK_IN_USE_WRITABLE);
    2078             : 
    2079             :   /* If nothing outstanding, bail quickly */
    2080      752913 :   if( FD_UNLIKELY( !(pack->outstanding_microblock_mask & (1UL<<bank_tile)) ) ) return 0;
    2081             : 
    2082      685575 :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
    2083      685575 :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
    2084      685575 :   FD_PACK_BITSET_COPY( bitset_rw_in_use, pack->bitset_rw_in_use );
    2085      685575 :   FD_PACK_BITSET_COPY( bitset_w_in_use,  pack->bitset_w_in_use  );
    2086             : 
    2087      685575 :   fd_pack_addr_use_t * base = pack->use_by_bank[bank_tile];
    2088             : 
    2089      685575 :   fd_pack_ord_txn_t       * best         = NULL;
    2090      685575 :   fd_pack_penalty_treap_t * best_penalty = NULL;
    2091      685575 :   ulong                     txn_cnt      = 0UL;
    2092             : 
    2093    16895910 :   for( ulong i=0UL; i<pack->use_by_bank_cnt[bank_tile]; i++ ) {
    2094    16210335 :     fd_pack_addr_use_t * use = acct_uses_query( pack->acct_in_use, base[i].key, NULL );
    2095    16210335 :     FD_TEST( use );
    2096    16210335 :     use->in_use_by &= clear_mask;
    2097             : 
    2098             :     /* In order to properly bound the size of bitset_map, we need to
    2099             :        release the "reference" to the account when we schedule it.
    2100             :        However, that poses a bit of a problem here, because by the time
    2101             :        we complete the microblock, that account could have been assigned
    2102             :        a different bit in the bitset.  The scheduling step tells us if
    2103             :        that is the case, and if so, we know that the bits in
    2104             :        bitset_w_in_use and bitset_rw_in_use were already cleared as
    2105             :        necessary.
    2106             : 
    2107             :        Note that it's possible for BIT_CLEARED to be set and then unset
    2108             :        by later uses, but then the account would be in use on other
    2109             :        banks, so we wouldn't try to observe the old value.  For example:
    2110             :        Suppose bit 0->account A, bit 1->account B, and we have two
    2111             :        transactions that read A, B.  We schedule a microblock to bank 0,
    2112             :        taking both transactions, which sets the counts for A, B to 0,
    2113             :        and releases the bits, clearing bits 0 and 1, and setting
    2114             :        BIT_CLEARED.  Then we get two more transactions that read
    2115             :        accounts C, D, A, B, and they get assigned 0->C, 1->D, 2->A,
    2116             :        3->B.  We try to schedule a microblock to bank 1 that takes one
    2117             :        of those transactions.  This unsets BIT_CLEARED for A, B.
    2118             :        Finally, the first microblock completes.  Even though the bitset
    2119             :        map has the new bits for A and B which are "wrong" compared to
    2120             :        when the transaction was initially scheduled, those bits have
    2121             :        already been cleared and reset properly in the bitset as needed.
    2122             :        A and B will still be in use by bank 1, so we won't clear any
    2123             :        bits.  If, on the other hand, the microblock scheduled to bank 1
    2124             :        completes first, bits 0 and 1 will be cleared for accounts C and
    2125             :        D, while bits 2 and 3 will remain set, which is correct.  Then
    2126             :        when bank 0 completes, bits 2 and 3 will be cleared. */
    2127    16210335 :     if( FD_LIKELY( !use->in_use_by ) ) { /* if in_use_by==0, doesn't include BIT_CLEARED */
    2128     3408801 :       fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, base[i].key, NULL );
    2129     3408801 :       FD_TEST( q );
    2130     3408801 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  q->bit );
    2131     3408801 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, q->bit );
    2132             : 
    2133             :       /* Because this account is no longer in use, it might be possible
    2134             :          to schedule a transaction that writes to it.  Check its
    2135             :          penalty treap if it has one, and potentially move it to the
    2136             :          main treap. */
    2137     3408801 :       fd_pack_penalty_treap_t * p_trp = penalty_map_query( pack->penalty_treaps, base[i].key, NULL );
    2138     3408801 :       if( FD_UNLIKELY( p_trp ) ) {
    2139      752813 :         fd_pack_ord_txn_t * best_in_trp = treap_rev_iter_ele( treap_rev_iter_init( p_trp->penalty_treap, pack->pool ), pack->pool );
    2140      752813 :         if( FD_UNLIKELY( !best || COMPARE_WORSE( best, best_in_trp ) ) ) {
    2141      301626 :           best         = best_in_trp;
    2142      301626 :           best_penalty = p_trp;
    2143      301626 :         }
    2144      752813 :       }
    2145     3408801 :     }
    2146             : 
    2147    16210335 :     if( FD_LIKELY( !(use->in_use_by & ~FD_PACK_IN_USE_BIT_CLEARED) ) ) acct_uses_remove( pack->acct_in_use, use );
    2148             : 
    2149    16210335 :     if( FD_UNLIKELY( i+1UL==pack->use_by_bank_txn[ bank_tile ][ txn_cnt ] ) ) {
    2150    13082157 :       txn_cnt++;
    2151    13082157 :       if( FD_LIKELY( best ) ) {
    2152             :         /* move best to the main treap */
    2153      301626 :         treap_ele_remove( best_penalty->penalty_treap, best, pack->pool );
    2154      301626 :         best->root = FD_ORD_TXN_ROOT_PENDING;
    2155      301626 :         treap_ele_insert( pack->pending,               best, pack->pool );
    2156             : 
    2157      301626 :         pack->pending_smallest->cus   = fd_ulong_min( pack->pending_smallest->cus,   best->compute_est             );
    2158      301626 :         pack->pending_smallest->bytes = fd_ulong_min( pack->pending_smallest->bytes, best->txn_e->txnp->payload_sz );
    2159             : 
    2160      301626 :         if( FD_UNLIKELY( !treap_ele_cnt( best_penalty->penalty_treap ) ) ) {
    2161        2892 :           treap_delete( treap_leave( best_penalty->penalty_treap ) );
    2162             :           /* Removal invalidates any pointers we got from
    2163             :              penalty_map_query, but we immediately set these to NULL, so
    2164             :              we're not keeping any pointers around. */
    2165        2892 :           penalty_map_remove( pack->penalty_treaps, best_penalty );
    2166        2892 :         }
    2167      301626 :         best         = NULL;
    2168      301626 :         best_penalty = NULL;
    2169      301626 :       }
    2170    13082157 :     }
    2171    16210335 :   }
    2172             : 
    2173      685575 :   pack->use_by_bank_cnt[bank_tile] = 0UL;
    2174             : 
    2175      685575 :   FD_PACK_BITSET_COPY( pack->bitset_rw_in_use, bitset_rw_in_use );
    2176      685575 :   FD_PACK_BITSET_COPY( pack->bitset_w_in_use,  bitset_w_in_use  );
    2177             : 
    2178             :   /* outstanding_microblock_mask never has the writable bit set, so we
    2179             :      don't care about clearing it here either. */
    2180      685575 :   pack->outstanding_microblock_mask &= clear_mask;
    2181      685575 :   return 1;
    2182      685575 : }
    2183             : 
    2184      752688 : #define TRY_BUNDLE_NO_READY_BUNDLES      0
    2185           6 : #define TRY_BUNDLE_HAS_CONFLICTS       (-1)
    2186           6 : #define TRY_BUNDLE_DOES_NOT_FIT        (-2)
    2187           6 : #define TRY_BUNDLE_SUCCESS(n)          ( n) /* schedule bundle with n transactions */
    2188             : static inline int
    2189             : fd_pack_try_schedule_bundle( fd_pack_t  * pack,
    2190             :                              ulong        bank_tile,
    2191      752694 :                              fd_txn_p_t * out ) {
    2192      752694 :   int state = pack->initializer_bundle_state;
    2193      752694 :   if( FD_UNLIKELY( (state==FD_PACK_IB_STATE_PENDING) | (state==FD_PACK_IB_STATE_FAILED ) ) ) return TRY_BUNDLE_NO_READY_BUNDLES;
    2194             : 
    2195      752694 :   fd_pack_ord_txn_t * pool    = pack->pool;
    2196      752694 :   treap_t           * bundles = pack->pending_bundles;
    2197             : 
    2198      752694 :   int require_ib;
    2199      752694 :   if( FD_UNLIKELY( state==FD_PACK_IB_STATE_NOT_INITIALIZED ) ) { require_ib = 1; }
    2200      752694 :   if( FD_LIKELY  ( state==FD_PACK_IB_STATE_READY           ) ) { require_ib = 0; }
    2201             : 
    2202      752694 :   treap_rev_iter_t _cur  = treap_rev_iter_init( bundles, pool );
    2203      752694 :   ulong bundle_idx = ULONG_MAX;
    2204             : 
    2205             :   /* Skip any that we've marked as won't fit in this block */
    2206      752694 :   while( FD_UNLIKELY( !treap_rev_iter_done( _cur ) && treap_rev_iter_ele( _cur, pool )->skip==pack->compressed_slot_number ) ) {
    2207           0 :     _cur = treap_rev_iter_next( _cur, pool );
    2208           0 :     pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_DEFER_SKIP_IDX ]++;
    2209           0 :   }
    2210             : 
    2211      752694 :   if( FD_UNLIKELY( treap_rev_iter_done( _cur ) ) ) return TRY_BUNDLE_NO_READY_BUNDLES;
    2212             : 
    2213           6 :   treap_rev_iter_t   _txn0 = _cur;
    2214           6 :   fd_pack_ord_txn_t * txn0 = treap_rev_iter_ele( _txn0, pool );
    2215           6 :   int is_ib = !!(txn0->txn->flags & FD_TXN_P_FLAGS_INITIALIZER_BUNDLE);
    2216           6 :   bundle_idx = RC_TO_REL_BUNDLE_IDX( txn0->rewards, txn0->compute_est );
    2217             : 
    2218           6 :   if( FD_UNLIKELY( require_ib & !is_ib ) ) return TRY_BUNDLE_NO_READY_BUNDLES;
    2219             : 
    2220             :   /* At this point, we have our candidate bundle, so we'll schedule it
    2221             :      if we can.  If we can't, we won't schedule anything. */
    2222             : 
    2223             : 
    2224           6 :   fd_pack_addr_use_t * bundle_temp_inserted[ FD_PACK_MAX_TXN_PER_BUNDLE * FD_TXN_ACCT_ADDR_MAX ];
    2225           6 :   ulong bundle_temp_inserted_cnt = 0UL;
    2226             : 
    2227           6 :   ulong bank_tile_mask = 1UL << bank_tile;
    2228             : 
    2229           6 :   int doesnt_fit   = 0;
    2230           6 :   int has_conflict = 0;
    2231           6 :   ulong txn_cnt = 0UL;
    2232             : 
    2233           6 :   ulong cu_limit         = pack->lim->max_cost_per_block        - pack->cumulative_block_cost;
    2234           6 :   ulong byte_limit       = pack->lim->max_data_bytes_per_block  - pack->data_bytes_consumed;
    2235           6 :   ulong microblock_limit = pack->lim->max_microblocks_per_block - pack->microblock_cnt;
    2236             : 
    2237           6 :   FD_PACK_BITSET_DECLARE( bitset_rw_in_use );
    2238           6 :   FD_PACK_BITSET_DECLARE( bitset_w_in_use  );
    2239           6 :   FD_PACK_BITSET_COPY( bitset_rw_in_use, pack->bitset_rw_in_use );
    2240           6 :   FD_PACK_BITSET_COPY( bitset_w_in_use,  pack->bitset_w_in_use  );
    2241             : 
    2242             :   /* last_use_in_txn_cnt[i+1] Keeps track of the number of accounts that
    2243             :      have their last reference in transaction i of the bundle.  This
    2244             :      esoteric value is important for computing use_by_bank_txn.
    2245             :      last_use_in_txn_cnt[0] is garbage. */
    2246           6 :   ulong last_use_in_txn_cnt[ 1UL+FD_PACK_MAX_TXN_PER_BUNDLE ] = { 0UL };
    2247             : 
    2248           6 :   fd_pack_addr_use_t   null_use[1]    = {{{{ 0 }}, { 0 }}};
    2249             : 
    2250          24 :   while( !(doesnt_fit | has_conflict) & !treap_rev_iter_done( _cur ) ) {
    2251          18 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2252          18 :     ulong this_bundle_idx = RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est );
    2253          18 :     if( FD_UNLIKELY( this_bundle_idx!=bundle_idx ) ) break;
    2254             : 
    2255          18 :     if( FD_UNLIKELY( cur->compute_est>cu_limit ) ) {
    2256           0 :       doesnt_fit = 1;
    2257           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_CU_LIMIT_IDX ]++;
    2258           0 :       break;
    2259           0 :     }
    2260          18 :     cu_limit -= cur->compute_est;
    2261             : 
    2262             :     /* Each transaction in a bundle turns into a microblock */
    2263          18 :     if( FD_UNLIKELY( microblock_limit==0UL ) ) {
    2264           0 :       doesnt_fit = 1;
    2265           0 :       FD_MCNT_INC( PACK, MICROBLOCK_PER_BLOCK_LIMIT, 1UL );
    2266           0 :       break;
    2267           0 :     }
    2268          18 :     microblock_limit--;
    2269             : 
    2270          18 :     if( FD_UNLIKELY( cur->txn->payload_sz+MICROBLOCK_DATA_OVERHEAD>byte_limit ) ) {
    2271           0 :       doesnt_fit = 1;
    2272           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_BYTE_LIMIT_IDX ]++;
    2273           0 :       break;
    2274           0 :     }
    2275          18 :     byte_limit -= cur->txn->payload_sz + MICROBLOCK_DATA_OVERHEAD;
    2276             : 
    2277          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 ) ) ) {
    2278           0 :       has_conflict = 1;
    2279           0 :       pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_FAST_PATH_IDX ]++;
    2280           0 :       break;
    2281           0 :     }
    2282             : 
    2283             :     /* Don't update the actual in-use bitset, because the transactions
    2284             :        in the bundle are allowed to conflict with each other. */
    2285          18 :     FD_PACK_BITSET_OR( bitset_rw_in_use, cur->rw_bitset );
    2286          18 :     FD_PACK_BITSET_OR( bitset_w_in_use,  cur->w_bitset  );
    2287             : 
    2288             : 
    2289          18 :     fd_txn_t const * txn = TXN(cur->txn);
    2290          18 :     fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, cur->txn->payload );
    2291          18 :     fd_acct_addr_t const * alt_adj = cur->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    2292             : 
    2293             :     /* Check conflicts between this transaction's writable accounts and
    2294             :        current readers */
    2295          18 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    2296         108 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2297             : 
    2298          90 :       fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    2299             : 
    2300          90 :       fd_pack_addr_use_t * in_bundle_temp = acct_uses_query( pack->bundle_temp_map, acct, null_use );
    2301          90 :       ulong current_cost                  = acct_uses_query( pack->writer_costs,    acct, null_use )->total_cost;
    2302          90 :       ulong carried_cost                  = (ulong)in_bundle_temp->carried_cost;
    2303          90 :       if( FD_UNLIKELY( current_cost + carried_cost + cur->compute_est > pack->lim->max_write_cost_per_acct ) ) {
    2304           0 :         doesnt_fit = 1;
    2305           0 :         pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_WRITE_COST_IDX ]++;
    2306           0 :         break;
    2307           0 :       }
    2308             : 
    2309          90 :       if( FD_LIKELY( in_bundle_temp==null_use ) ) { /* Not in temp bundle table yet */
    2310          30 :         in_bundle_temp    = acct_uses_insert( pack->bundle_temp_map, acct );
    2311          30 :         in_bundle_temp->_ = 0UL;
    2312          30 :         bundle_temp_inserted[ bundle_temp_inserted_cnt++ ] = in_bundle_temp;
    2313          30 :       }
    2314          90 :       in_bundle_temp->carried_cost += (uint)cur->compute_est; /* < 2^21, but >0 */
    2315          90 :       in_bundle_temp->ref_cnt++;
    2316          90 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]--;
    2317          90 :       in_bundle_temp->last_use_in = (ushort)(txn_cnt+1UL);
    2318          90 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]++;
    2319             : 
    2320          90 :       if( FD_UNLIKELY( acct_uses_query( pack->acct_in_use, acct, null_use )->in_use_by ) ) {
    2321           0 :         has_conflict = 1;
    2322           0 :         pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_SLOW_PATH_IDX ]++;
    2323           0 :         break;
    2324           0 :       }
    2325          90 :     }
    2326          18 :     if( has_conflict | doesnt_fit ) break;
    2327             : 
    2328             :     /* Check conflicts between this transaction's readonly accounts and
    2329             :        current writers */
    2330          18 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    2331         126 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2332             : 
    2333         108 :       fd_acct_addr_t const * acct = ACCT_ITER_TO_PTR( iter );
    2334         108 :       if( fd_pack_unwritable_contains( acct ) ) continue; /* No need to track sysvars because they can't be writable */
    2335             : 
    2336          54 :       fd_pack_addr_use_t * in_bundle_temp = acct_uses_query( pack->bundle_temp_map, *acct, null_use );
    2337          54 :       if( FD_LIKELY( in_bundle_temp==null_use ) ) { /* Not in temp bundle table yet */
    2338          18 :         in_bundle_temp = acct_uses_insert( pack->bundle_temp_map, *acct );
    2339          18 :         in_bundle_temp->_ = 0UL;
    2340          18 :         bundle_temp_inserted[ bundle_temp_inserted_cnt++ ] = in_bundle_temp;
    2341          18 :       }
    2342          54 :       in_bundle_temp->ref_cnt++;
    2343          54 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]--;
    2344          54 :       in_bundle_temp->last_use_in = (ushort)(txn_cnt+1UL);
    2345          54 :       last_use_in_txn_cnt[ in_bundle_temp->last_use_in ]++;
    2346             : 
    2347          54 :       if( FD_UNLIKELY( acct_uses_query( pack->acct_in_use,  *acct, null_use )->in_use_by & FD_PACK_IN_USE_WRITABLE ) ) {
    2348           0 :         has_conflict = 1;
    2349           0 :         pack->sched_results[ FD_METRICS_ENUM_PACK_TXN_SCHEDULE_V_SLOW_PATH_IDX ]++;
    2350           0 :         break;
    2351           0 :       }
    2352          54 :     }
    2353             : 
    2354          18 :     if( has_conflict | doesnt_fit ) break;
    2355             : 
    2356          18 :     txn_cnt++;
    2357          18 :     _cur = treap_rev_iter_next( _cur, pool );
    2358          18 :   }
    2359           6 :   int retval = fd_int_if( doesnt_fit, TRY_BUNDLE_DOES_NOT_FIT,
    2360           6 :                                       fd_int_if( has_conflict, TRY_BUNDLE_HAS_CONFLICTS, TRY_BUNDLE_SUCCESS( (int)txn_cnt ) ) );
    2361             : 
    2362           6 :   if( FD_UNLIKELY( retval<=0 ) ) {
    2363           0 :     for( ulong i=0UL; i<bundle_temp_inserted_cnt; i++ ) {
    2364           0 :       acct_uses_remove( pack->bundle_temp_map, bundle_temp_inserted[ bundle_temp_inserted_cnt-i-1UL ] );
    2365           0 :     }
    2366           0 :     FD_TEST( acct_uses_key_cnt( pack->bundle_temp_map )==0UL );
    2367             : 
    2368           0 :     if( FD_UNLIKELY( retval==TRY_BUNDLE_DOES_NOT_FIT ) ) {
    2369             :       /* Decrement the skip count for the bundle we just tried. */
    2370             : 
    2371           0 :       for( _cur=_txn0; !treap_rev_iter_done( _cur ); _cur=treap_rev_iter_next( _cur, pool ) ) {
    2372           0 :         fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2373           0 :         ulong this_bundle_idx = RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est );
    2374           0 :         if( FD_UNLIKELY( this_bundle_idx!=bundle_idx ) ) break;
    2375             : 
    2376             :         /* See fd_pack_schedule_impl for this line */
    2377           0 :         cur->skip = (ushort)(1+fd_ushort_min( (ushort)(pack->compressed_slot_number-1),
    2378           0 :               (ushort)(fd_ushort_min( cur->skip, FD_PACK_SKIP_CNT )-2) ) );
    2379           0 :       }
    2380           0 :     }
    2381           0 :     return retval;
    2382           0 :   }
    2383             : 
    2384             :   /* This bundle passed validation, so now we'll take it! */
    2385           6 :   pack->outstanding_microblock_mask |= bank_tile_mask;
    2386             : 
    2387           6 :   treap_rev_iter_t   _end  = _cur;
    2388           6 :   treap_rev_iter_t   _next;
    2389             : 
    2390             :   /* We'll carefully incrementally construct use_by_bank and
    2391             :      use_by_bank_txn based on the contents of bundle_temp and
    2392             :      last_use_in_txn_cnt. */
    2393           6 :   fd_pack_addr_use_t * use_by_bank     = pack->use_by_bank    [bank_tile];
    2394           6 :   ulong              * use_by_bank_txn = pack->use_by_bank_txn[bank_tile];
    2395           6 :   ulong cum_sum = 0UL;
    2396          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 ]; }
    2397           6 :   pack->use_by_bank_cnt[bank_tile] = cum_sum;
    2398             : 
    2399             : 
    2400          24 :   for( _cur=_txn0; _cur!=_end; _cur=_next ) {
    2401          18 :     _next = treap_rev_iter_next( _cur, pool );
    2402             : 
    2403          18 :     fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2404          18 :     fd_txn_t const    * txn = TXN(cur->txn);
    2405          18 :     fd_memcpy( out->payload, cur->txn->payload, cur->txn->payload_sz                                           );
    2406          18 :     fd_memcpy( TXN(out),     txn,               fd_txn_footprint( txn->instr_cnt, txn->addr_table_lookup_cnt ) );
    2407          18 :     out->payload_sz                      = cur->txn->payload_sz;
    2408          18 :     out->pack_cu.requested_exec_plus_acct_data_cus = cur->txn->pack_cu.requested_exec_plus_acct_data_cus;
    2409          18 :     out->pack_cu.non_execution_cus       = cur->txn->pack_cu.non_execution_cus;
    2410          18 :     out->scheduler_arrival_time_nanos    = cur->txn->scheduler_arrival_time_nanos;
    2411          18 :     out->source_tpu                      = cur->txn->source_tpu;
    2412          18 :     out->source_ipv4                     = cur->txn->source_ipv4;
    2413          18 :     out->flags                           = cur->txn->flags;
    2414          18 :     out++;
    2415             : 
    2416          18 :     pack->cumulative_block_cost += cur->compute_est;
    2417          18 :     pack->data_bytes_consumed   += cur->txn->payload_sz + MICROBLOCK_DATA_OVERHEAD;
    2418          18 :     pack->microblock_cnt        += 1UL;
    2419             : 
    2420          18 :     if( FD_UNLIKELY( cur->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) noncemap_ele_remove_fast( pack->noncemap, cur, pack->pool );
    2421          18 :     sig2txn_ele_remove_fast( pack->signature_map, cur, pack->pool );
    2422             : 
    2423          18 :     cur->root = FD_ORD_TXN_ROOT_FREE;
    2424          18 :     expq_remove( pack->expiration_q, cur->expq_idx );
    2425          18 :     treap_idx_remove( pack->pending_bundles, _cur, pack->pool );
    2426          18 :     trp_pool_idx_release( pack->pool, _cur );
    2427          18 :     pack->pending_txn_cnt--;
    2428          18 :   }
    2429             : 
    2430             : 
    2431          54 :   for( ulong i=0UL; i<bundle_temp_inserted_cnt; i++ ) {
    2432             :     /* In order to clear bundle_temp_map with the typical trick, we need
    2433             :        to iterate through bundle_temp_inserted backwards. */
    2434          48 :     fd_pack_addr_use_t * addr_use = bundle_temp_inserted[ bundle_temp_inserted_cnt-i-1UL ];
    2435             : 
    2436          48 :     int any_writers = addr_use->carried_cost>0U; /* Did any transaction in this bundle write lock this account address? */
    2437             : 
    2438          48 :     if( FD_LIKELY( any_writers ) ) { /* UNLIKELY? */
    2439          30 :       fd_pack_addr_use_t * in_wcost_table = acct_uses_query( pack->writer_costs, addr_use->key, NULL );
    2440          30 :       if( !in_wcost_table ) {
    2441          15 :         in_wcost_table = acct_uses_insert( pack->writer_costs, addr_use->key );
    2442          15 :         in_wcost_table->total_cost = 0UL;
    2443          15 :         pack->written_list[ pack->written_list_cnt ] = in_wcost_table;
    2444          15 :         pack->written_list_cnt = fd_ulong_min( pack->written_list_cnt+1UL, pack->written_list_max-1UL );
    2445          15 :       }
    2446          30 :       in_wcost_table->total_cost += (ulong)addr_use->carried_cost;
    2447          30 :     }
    2448             : 
    2449             :     /* in_use_by must be set before releasing the bit reference */
    2450          48 :     fd_pack_addr_use_t * use = acct_uses_query( pack->acct_in_use, addr_use->key, NULL );
    2451          48 :     if( !use ) { use = acct_uses_insert( pack->acct_in_use, addr_use->key ); use->in_use_by = 0UL; }
    2452          48 :     use->in_use_by |= bank_tile_mask | fd_ulong_if( any_writers, FD_PACK_IN_USE_WRITABLE, 0UL );
    2453          48 :     use->in_use_by &= ~FD_PACK_IN_USE_BIT_CLEARED;
    2454             : 
    2455          48 :     use_by_bank[ use_by_bank_txn[ addr_use->last_use_in-1UL ]++ ] = *use;
    2456             : 
    2457         192 :     for( ulong k=0UL; k<(ulong)addr_use->ref_cnt; k++ ) {
    2458         144 :       release_result_t ret = release_bit_reference( pack, &(addr_use->key) );
    2459         144 :       FD_PACK_BITSET_CLEARN( bitset_rw_in_use, ret.clear_rw_bit );
    2460         144 :       FD_PACK_BITSET_CLEARN( bitset_w_in_use,  ret.clear_w_bit  );
    2461         144 :     }
    2462             : 
    2463          48 :     acct_uses_remove( pack->bundle_temp_map, addr_use );
    2464          48 :   }
    2465             : 
    2466           6 :   FD_PACK_BITSET_COPY( pack->bitset_rw_in_use, bitset_rw_in_use );
    2467           6 :   FD_PACK_BITSET_COPY( pack->bitset_w_in_use,  bitset_w_in_use  );
    2468             : 
    2469           6 :   if( FD_UNLIKELY( is_ib ) ) {
    2470           0 :     pack->initializer_bundle_state = FD_PACK_IB_STATE_PENDING;
    2471           0 :   }
    2472           6 :   return retval;
    2473           6 : }
    2474             : 
    2475             : 
    2476             : ulong
    2477             : fd_pack_schedule_next_microblock( fd_pack_t *  pack,
    2478             :                                   ulong        total_cus,
    2479             :                                   float        vote_fraction,
    2480             :                                   ulong        bank_tile,
    2481             :                                   int          schedule_flags,
    2482      752913 :                                   fd_txn_p_t * out ) {
    2483             : 
    2484             :   /* TODO: Decide if these are exactly how we want to handle limits */
    2485      752913 :   total_cus = fd_ulong_min( total_cus, pack->lim->max_cost_per_block - pack->cumulative_block_cost );
    2486      752913 :   ulong vote_cus = fd_ulong_min( (ulong)((float)total_cus * vote_fraction),
    2487      752913 :                                  pack->lim->max_vote_cost_per_block - pack->cumulative_vote_cost );
    2488      752913 :   ulong vote_reserved_txns = fd_ulong_min( vote_cus/FD_PACK_SIMPLE_VOTE_COST,
    2489      752913 :                                            (ulong)((float)pack->lim->max_txn_per_microblock * vote_fraction) );
    2490             : 
    2491             : 
    2492      752913 :   if( FD_UNLIKELY( (pack->microblock_cnt>=pack->lim->max_microblocks_per_block) ) ) {
    2493           0 :     FD_MCNT_INC( PACK, MICROBLOCK_PER_BLOCK_LIMIT, 1UL );
    2494           0 :     return 0UL;
    2495           0 :   }
    2496      752913 :   if( FD_UNLIKELY( pack->data_bytes_consumed+MICROBLOCK_DATA_OVERHEAD+FD_TXN_MIN_SERIALIZED_SZ>pack->lim->max_data_bytes_per_block) ) {
    2497           0 :     FD_MCNT_INC( PACK, DATA_PER_BLOCK_LIMIT, 1UL );
    2498           0 :     return 0UL;
    2499           0 :   }
    2500             : 
    2501      752913 :   ulong * use_by_bank_txn = pack->use_by_bank_txn[ bank_tile ];
    2502             : 
    2503      752913 :   ulong cu_limit  = total_cus - vote_cus;
    2504      752913 :   ulong txn_limit = pack->lim->max_txn_per_microblock - vote_reserved_txns;
    2505      752913 :   ulong scheduled = 0UL;
    2506      752913 :   ulong byte_limit = pack->lim->max_data_bytes_per_block - pack->data_bytes_consumed - MICROBLOCK_DATA_OVERHEAD;
    2507             : 
    2508      752913 :   sched_return_t status = {0}, status1 = {0};
    2509             : 
    2510      752913 :   if( FD_LIKELY( schedule_flags & FD_PACK_SCHEDULE_VOTE ) ) {
    2511             :     /* Schedule vote transactions */
    2512      752814 :     status1= fd_pack_schedule_impl( pack, pack->pending_votes, vote_cus, vote_reserved_txns, byte_limit, bank_tile, pack->pending_votes_smallest, use_by_bank_txn, out+scheduled );
    2513             : 
    2514      752814 :     scheduled                   += status1.txns_scheduled;
    2515      752814 :     pack->cumulative_vote_cost  += status1.cus_scheduled;
    2516      752814 :     pack->cumulative_block_cost += status1.cus_scheduled;
    2517      752814 :     pack->data_bytes_consumed   += status1.bytes_scheduled;
    2518      752814 :     byte_limit                  -= status1.bytes_scheduled;
    2519      752814 :     use_by_bank_txn             += status1.txns_scheduled;
    2520             :     /* Add any remaining CUs/txns to the non-vote limits */
    2521      752814 :     txn_limit += vote_reserved_txns - status1.txns_scheduled;
    2522      752814 :     cu_limit  += vote_cus - status1.cus_scheduled;
    2523      752814 :   }
    2524             : 
    2525             :   /* Bundle can't mix with votes, so only try to schedule a bundle if we
    2526             :      didn't get any votes. */
    2527      752913 :   if( FD_UNLIKELY( !!(schedule_flags & FD_PACK_SCHEDULE_BUNDLE) & (status1.txns_scheduled==0UL) ) ) {
    2528      752694 :     int bundle_result = fd_pack_try_schedule_bundle( pack, bank_tile, out );
    2529      752694 :     if( FD_UNLIKELY( bundle_result>0                         ) ) return (ulong)bundle_result;
    2530      752688 :     if( FD_UNLIKELY( bundle_result==TRY_BUNDLE_HAS_CONFLICTS ) ) return 0UL;
    2531             :     /* in the NO_READY_BUNDLES or DOES_NOT_FIT case, we schedule like
    2532             :        normal. */
    2533             :     /* We have the early returns here because try_schedule_bundle does
    2534             :        the bookeeping internally, since the calculations are a bit
    2535             :        different in that case. */
    2536      752688 :   }
    2537             : 
    2538             : 
    2539             :   /* Fill any remaining space with non-vote transactions */
    2540      752907 :   if( FD_LIKELY( schedule_flags & FD_PACK_SCHEDULE_TXN ) ) {
    2541      752907 :     status = fd_pack_schedule_impl( pack, pack->pending,       cu_limit, txn_limit,          byte_limit, bank_tile, pack->pending_smallest,       use_by_bank_txn, out+scheduled );
    2542             : 
    2543      752907 :     scheduled                   += status.txns_scheduled;
    2544      752907 :     pack->cumulative_block_cost += status.cus_scheduled;
    2545      752907 :     pack->data_bytes_consumed   += status.bytes_scheduled;
    2546      752907 :   }
    2547             : 
    2548      752907 :   ulong nonempty = (ulong)(scheduled>0UL);
    2549      752907 :   pack->microblock_cnt              += nonempty;
    2550      752907 :   pack->outstanding_microblock_mask |= nonempty << bank_tile;
    2551      752907 :   pack->data_bytes_consumed         += nonempty * MICROBLOCK_DATA_OVERHEAD;
    2552             : 
    2553             :   /* Update metrics counters */
    2554      752907 :   fd_pack_metrics_write( pack );
    2555      752907 :   FD_MGAUGE_SET( PACK, CUS_CONSUMED_IN_BLOCK,         pack->cumulative_block_cost          );
    2556             : 
    2557      752907 :   fd_histf_sample( pack->txn_per_microblock,  scheduled              );
    2558      752907 :   fd_histf_sample( pack->vote_per_microblock, status1.txns_scheduled );
    2559             : 
    2560      250969 : #if FD_HAS_AVX512 && FD_PACK_USE_NON_TEMPORAL_MEMCPY
    2561      250969 :   _mm_sfence();
    2562      250969 : #endif
    2563             : 
    2564      752907 :   return scheduled;
    2565      752913 : }
    2566             : 
    2567      274530 : ulong fd_pack_bank_tile_cnt     ( fd_pack_t const * pack ) { return pack->bank_tile_cnt;         }
    2568           0 : ulong fd_pack_current_block_cost( fd_pack_t const * pack ) { return pack->cumulative_block_cost; }
    2569             : 
    2570             : 
    2571             : void
    2572           0 : fd_pack_set_block_limits( fd_pack_t * pack, fd_pack_limits_t const * limits ) {
    2573           0 :   FD_TEST( limits->max_cost_per_block      >= FD_PACK_MAX_COST_PER_BLOCK_LOWER_BOUND      );
    2574           0 :   FD_TEST( limits->max_vote_cost_per_block >= FD_PACK_MAX_VOTE_COST_PER_BLOCK_LOWER_BOUND );
    2575           0 :   FD_TEST( limits->max_write_cost_per_acct >= FD_PACK_MAX_WRITE_COST_PER_ACCT_LOWER_BOUND );
    2576             : 
    2577           0 :   pack->lim->max_microblocks_per_block = limits->max_microblocks_per_block;
    2578           0 :   pack->lim->max_data_bytes_per_block  = limits->max_data_bytes_per_block;
    2579           0 :   pack->lim->max_cost_per_block        = limits->max_cost_per_block;
    2580           0 :   pack->lim->max_vote_cost_per_block   = limits->max_vote_cost_per_block;
    2581           0 :   pack->lim->max_write_cost_per_acct   = limits->max_write_cost_per_acct;
    2582           0 : }
    2583             : 
    2584             : void
    2585           0 : fd_pack_get_block_limits( fd_pack_t * pack, fd_pack_limits_usage_t * opt_limits_usage, fd_pack_limits_t * opt_limits ) {
    2586           0 :   if( FD_LIKELY( opt_limits_usage ) ) {
    2587           0 :     opt_limits_usage->block_cost          = pack->cumulative_block_cost;
    2588           0 :     opt_limits_usage->vote_cost           = pack->cumulative_vote_cost;
    2589           0 :     opt_limits_usage->block_data_bytes    = pack->data_bytes_consumed;
    2590           0 :     opt_limits_usage->microblocks         = pack->microblock_cnt;
    2591           0 :   }
    2592           0 :   if( FD_LIKELY( opt_limits ) ) fd_memcpy( opt_limits, pack->lim, sizeof(fd_pack_limits_t) );
    2593           0 : }
    2594             : 
    2595             : void
    2596           0 : fd_pack_get_top_writers( fd_pack_t const * pack, fd_pack_addr_use_t top_writers[static FD_PACK_TOP_WRITERS_CNT] ) {
    2597           0 :   fd_memcpy( top_writers, pack->top_writers, sizeof(pack->top_writers) );
    2598           0 : }
    2599             : 
    2600             : void
    2601           0 : fd_pack_get_pending_smallest( fd_pack_t * pack, fd_pack_smallest_t * opt_pending_smallest, fd_pack_smallest_t * opt_votes_smallest ) {
    2602           0 :   if( FD_LIKELY( opt_pending_smallest ) ) fd_memcpy( opt_pending_smallest, pack->pending_smallest,       sizeof(fd_pack_smallest_t) );
    2603           0 :   if( FD_LIKELY( opt_votes_smallest ) )   fd_memcpy( opt_votes_smallest,   pack->pending_votes_smallest, sizeof(fd_pack_smallest_t) );
    2604           0 : }
    2605             : 
    2606             : void
    2607             : fd_pack_rebate_cus( fd_pack_t              * pack,
    2608           6 :                     fd_pack_rebate_t const * rebate ) {
    2609           6 :   if( FD_UNLIKELY( (rebate->ib_result!=0) & (pack->initializer_bundle_state==FD_PACK_IB_STATE_PENDING ) ) ) {
    2610           0 :     pack->initializer_bundle_state = fd_int_if( rebate->ib_result==1, FD_PACK_IB_STATE_READY, FD_PACK_IB_STATE_FAILED );
    2611           0 :   }
    2612             : 
    2613           6 :   pack->cumulative_block_cost  -= rebate->total_cost_rebate;
    2614           6 :   pack->cumulative_vote_cost   -= rebate->vote_cost_rebate;
    2615           6 :   pack->data_bytes_consumed    -= rebate->data_bytes_rebate;
    2616           6 :   pack->cumulative_rebated_cus += rebate->total_cost_rebate;
    2617             :   /* For now, we want to ignore the microblock count rebate.  There are
    2618             :      3 places the microblock count is kept (here, in the pack tile, and
    2619             :      in the PoH tile), and they all need to count microblocks that end
    2620             :      up being empty in the same way.  It would be better from a
    2621             :      DoS-resistance perspective for them all not to count empty
    2622             :      microblocks towards the total, but there's a race condition:
    2623             :      suppose pack schedules a microblock containing one transaction that
    2624             :      doesn't land on chain, the slot ends, and then pack informs PoH of
    2625             :      the number of microblocks before the final rebate comes through.
    2626             :      This isn't unsolvable, but it's pretty gross, so it's probably
    2627             :      better to just not apply the rebate for now. */
    2628           6 :   (void)rebate->microblock_cnt_rebate;
    2629             : 
    2630           6 :   fd_pack_addr_use_t * writer_costs = pack->writer_costs;
    2631          18 :   for( ulong i=0UL; i<rebate->writer_cnt; i++ ) {
    2632          12 :     fd_pack_addr_use_t * in_wcost_table = acct_uses_query( writer_costs, rebate->writer_rebates[i].key, NULL );
    2633          12 :     if( FD_UNLIKELY( !in_wcost_table ) ) FD_LOG_ERR(( "Rebate to unknown written account" ));
    2634          12 :     in_wcost_table->total_cost -= rebate->writer_rebates[i].rebate_cus;
    2635             :     /* Important: Even if this is 0, don't delete it from the table so
    2636             :        that the insert order doesn't get messed up. */
    2637          12 :   }
    2638           6 : }
    2639             : 
    2640             : 
    2641             : ulong
    2642             : fd_pack_expire_before( fd_pack_t * pack,
    2643          15 :                        ulong       expire_before ) {
    2644          15 :   expire_before = fd_ulong_max( expire_before, pack->expire_before );
    2645          15 :   ulong deleted_cnt = 0UL;
    2646          15 :   fd_pack_expq_t * prq = pack->expiration_q;
    2647         327 :   while( (expq_cnt( prq )>0UL) & (prq->expires_at<expire_before) ) {
    2648         312 :     fd_pack_ord_txn_t * expired = prq->txn;
    2649             : 
    2650             :     /* fd_pack_delete_transaction also removes it from the heap */
    2651             :     /* All the transactions in the same bundle have the same expiration
    2652             :        time, so this loop will end up deleting them all, even with
    2653             :        delete_full_bundle set to 0. */
    2654         312 :     ulong _delete_cnt = delete_transaction( pack, expired, 0, 1 );
    2655         312 :     deleted_cnt += _delete_cnt;
    2656         312 :     FD_TEST( _delete_cnt );
    2657         312 :   }
    2658             : 
    2659          15 :   pack->expire_before = expire_before;
    2660          15 :   return deleted_cnt;
    2661          15 : }
    2662             : 
    2663             : void
    2664        2646 : fd_pack_end_block( fd_pack_t * pack ) {
    2665             :   /* rounded division */
    2666        2646 :   ulong pct_cus_per_block = (pack->cumulative_block_cost*100UL + (pack->lim->max_cost_per_block>>1))/pack->lim->max_cost_per_block;
    2667        2646 :   fd_histf_sample( pack->pct_cus_per_block,       pct_cus_per_block                                          );
    2668        2646 :   fd_histf_sample( pack->net_cus_per_block,       pack->cumulative_block_cost                                );
    2669        2646 :   fd_histf_sample( pack->rebated_cus_per_block,   pack->cumulative_rebated_cus                               );
    2670        2646 :   fd_histf_sample( pack->scheduled_cus_per_block, pack->cumulative_rebated_cus + pack->cumulative_block_cost );
    2671             : 
    2672        2646 :   pack->microblock_cnt              = 0UL;
    2673        2646 :   pack->data_bytes_consumed         = 0UL;
    2674        2646 :   pack->cumulative_block_cost       = 0UL;
    2675        2646 :   pack->cumulative_vote_cost        = 0UL;
    2676        2646 :   pack->cumulative_rebated_cus      = 0UL;
    2677        2646 :   pack->outstanding_microblock_mask = 0UL;
    2678             : 
    2679        2646 :   pack->initializer_bundle_state = FD_PACK_IB_STATE_NOT_INITIALIZED;
    2680             : 
    2681        2646 :   acct_uses_clear( pack->acct_in_use  );
    2682        2646 :   memset( pack->top_writers, 0, sizeof(pack->top_writers) );
    2683             : 
    2684        2646 :   if( FD_LIKELY( pack->written_list_cnt<pack->written_list_max-1UL ) ) {
    2685             :     /* The less dangerous way of doing this is to instead record the
    2686             :        keys we inserted and do a query followed by a delete for each
    2687             :        key.  The downside of that is that keys are 32 bytes and a
    2688             :        pointer is only 8 bytes, plus the computational cost for the
    2689             :        query.
    2690             : 
    2691             :        However, if we're careful, we can pull this off.  We require two
    2692             :        things.  First, we started from an empty map and did nothing but
    2693             :        insert and update.  In particular, no deletions.  Second, we have
    2694             :        to be careful to delete in the opposite order that we inserted.
    2695             :        This is essentially like unwinding the inserts we did.  The
    2696             :        common case is that the element after the one we delete will be
    2697             :        empty, so we'll hit that case.  It's possible that there's
    2698             :        another independent probe sequence that will be entirely intact
    2699             :        starting in the element after, but we'll never hit the MAP_MOVE
    2700             :        case. */
    2701      779283 :     for( ulong i=0UL; i<pack->written_list_cnt; i++ ) {
    2702      776637 :       fd_pack_addr_use_t * writer = pack->written_list[ pack->written_list_cnt - 1UL - i ];
    2703             :       /* build a small max heap with the top writer costs */
    2704      776637 :       if( FD_UNLIKELY( !fd_pack_unwritable_contains( &writer->key ) && !FD_PACK_TOP_WRITERS_SORT_BEFORE( pack->top_writers[ FD_PACK_TOP_WRITERS_CNT-1UL ], (*writer) ) ) ) {
    2705      776607 :           fd_memcpy( &pack->top_writers[ FD_PACK_TOP_WRITERS_CNT-1UL ], writer, sizeof(fd_pack_addr_use_t) );
    2706      776607 :           fd_pack_writer_cost_sort_insert( pack->top_writers, FD_PACK_TOP_WRITERS_CNT );
    2707      776607 :       }
    2708             : 
    2709             :       /* Clearing the cost field here is unnecessary (since it gets
    2710             :          cleared on insert), but makes debugging a bit easier. */
    2711      776637 :       writer->total_cost = 0UL;
    2712      776637 :       acct_uses_remove( pack->writer_costs, writer );
    2713      776637 :     }
    2714        2646 :   } else {
    2715           0 :     acct_uses_clear( pack->writer_costs );
    2716           0 :   }
    2717        2646 :   pack->written_list_cnt = 0UL;
    2718             : 
    2719             :   /* compressed_slot_number is > FD_PACK_SKIP_CNT, which means +1 is the
    2720             :      max unless it overflows. */
    2721        2646 :   pack->compressed_slot_number = fd_ushort_max( (ushort)(pack->compressed_slot_number+1), (ushort)(FD_PACK_SKIP_CNT+1) );
    2722             : 
    2723        2646 :   FD_PACK_BITSET_CLEAR( pack->bitset_rw_in_use );
    2724        2646 :   FD_PACK_BITSET_CLEAR( pack->bitset_w_in_use  );
    2725             : 
    2726        9234 :   for( ulong i=0UL; i<pack->bank_tile_cnt; i++ ) pack->use_by_bank_cnt[i] = 0UL;
    2727             : 
    2728             :   /* If our stake is low and we don't become leader often, end_block
    2729             :      might get called on the order of O(1/hr), which feels too
    2730             :      infrequent to do anything related to metrics.  However, we only
    2731             :      update the histograms when we are leader, so this is actually a
    2732             :      good place to copy them. */
    2733        2646 :   FD_MHIST_COPY( PACK, TOTAL_TRANSACTIONS_PER_MICROBLOCK_COUNT, pack->txn_per_microblock  );
    2734        2646 :   FD_MHIST_COPY( PACK, VOTES_PER_MICROBLOCK_COUNT,              pack->vote_per_microblock );
    2735             : 
    2736        2646 :   FD_MGAUGE_SET( PACK, CUS_CONSUMED_IN_BLOCK, 0UL                           );
    2737        2646 :   FD_MHIST_COPY( PACK, CUS_SCHEDULED,         pack->scheduled_cus_per_block );
    2738        2646 :   FD_MHIST_COPY( PACK, CUS_REBATED,           pack->rebated_cus_per_block   );
    2739        2646 :   FD_MHIST_COPY( PACK, CUS_NET,               pack->net_cus_per_block       );
    2740        2646 :   FD_MHIST_COPY( PACK, CUS_PCT,               pack->pct_cus_per_block       );
    2741        2646 : }
    2742             : 
    2743             : static void
    2744             : release_tree( treap_t           * treap,
    2745             :               sig2txn_t         * signature_map,
    2746             :               noncemap_t        * noncemap,
    2747           9 :               fd_pack_ord_txn_t * pool ) {
    2748           9 :   treap_fwd_iter_t next;
    2749          18 :   for( treap_fwd_iter_t it=treap_fwd_iter_init( treap, pool ); !treap_fwd_iter_done( it ); it=next ) {
    2750           9 :     next = treap_fwd_iter_next( it, pool );
    2751           9 :     ulong idx = treap_fwd_iter_idx( it );
    2752           9 :     pool[ idx ].root = FD_ORD_TXN_ROOT_FREE;
    2753           9 :     treap_idx_remove       ( treap,         idx, pool );
    2754           9 :     sig2txn_idx_remove_fast( signature_map, idx, pool );
    2755           9 :     trp_pool_idx_release   ( pool,          idx       );
    2756           9 :     if( pool[ idx ].txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) {
    2757           9 :       noncemap_idx_remove_fast( noncemap, idx, pool );
    2758           9 :     }
    2759           9 :   }
    2760           9 : }
    2761             : 
    2762             : void
    2763           3 : fd_pack_clear_all( fd_pack_t * pack ) {
    2764           3 :   pack->pending_txn_cnt        = 0UL;
    2765           3 :   pack->microblock_cnt         = 0UL;
    2766           3 :   pack->cumulative_block_cost  = 0UL;
    2767           3 :   pack->cumulative_vote_cost   = 0UL;
    2768           3 :   pack->cumulative_rebated_cus = 0UL;
    2769             : 
    2770           3 :   pack->pending_smallest->cus         = ULONG_MAX;
    2771           3 :   pack->pending_smallest->bytes       = ULONG_MAX;
    2772           3 :   pack->pending_votes_smallest->cus   = ULONG_MAX;
    2773           3 :   pack->pending_votes_smallest->bytes = ULONG_MAX;
    2774             : 
    2775           3 :   release_tree( pack->pending,         pack->signature_map, pack->noncemap, pack->pool );
    2776           3 :   release_tree( pack->pending_votes,   pack->signature_map, pack->noncemap, pack->pool );
    2777           3 :   release_tree( pack->pending_bundles, pack->signature_map, pack->noncemap, pack->pool );
    2778             : 
    2779           3 :   ulong const pool_max = trp_pool_max( pack->pool );
    2780         132 :   for( ulong i=0UL; i<pool_max; i++ ) {
    2781         129 :     if( FD_UNLIKELY( pack->pool[ i ].root!=FD_ORD_TXN_ROOT_FREE ) ) {
    2782           0 :       fd_pack_ord_txn_t * const del = pack->pool + i;
    2783           0 :       fd_txn_t * txn = TXN( del->txn );
    2784           0 :       fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, del->txn->payload );
    2785           0 :       fd_acct_addr_t const * alt_adj = del->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    2786           0 :       fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( del->root ) );
    2787           0 :       fd_pack_penalty_treap_t * penalty_treap = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    2788           0 :       FD_TEST( penalty_treap );
    2789           0 :       release_tree( penalty_treap->penalty_treap, pack->signature_map, pack->noncemap, pack->pool );
    2790           0 :     }
    2791         129 :   }
    2792             : 
    2793           3 :   pack->compressed_slot_number = (ushort)(FD_PACK_SKIP_CNT+1);
    2794             : 
    2795           3 :   expq_remove_all( pack->expiration_q );
    2796             : 
    2797           3 :   acct_uses_clear( pack->acct_in_use  );
    2798           3 :   acct_uses_clear( pack->writer_costs );
    2799             : 
    2800           3 :   penalty_map_clear( pack->penalty_treaps );
    2801             : 
    2802           3 :   FD_PACK_BITSET_CLEAR( pack->bitset_rw_in_use );
    2803           3 :   FD_PACK_BITSET_CLEAR( pack->bitset_w_in_use  );
    2804           3 :   bitset_map_clear( pack->acct_to_bitset );
    2805           3 :   pack->bitset_avail[ 0 ] = FD_PACK_BITSET_SLOWPATH;
    2806        1027 :   for( ulong i=0UL; i<FD_PACK_BITSET_MAX; i++ ) pack->bitset_avail[ i+1UL ] = (ushort)i;
    2807           3 :   pack->bitset_avail_cnt = FD_PACK_BITSET_MAX;
    2808             : 
    2809           6 :   for( ulong i=0UL; i<pack->bank_tile_cnt; i++ ) pack->use_by_bank_cnt[i] = 0UL;
    2810           3 : }
    2811             : 
    2812             : 
    2813             : /* If delete_full_bundle is non-zero and the transaction to delete is
    2814             :    part of a bundle, the rest of the bundle it is part of will be
    2815             :    deleted as well.
    2816             :    If move_from_penalty_treap is non-zero and the transaction to delete
    2817             :    is in the pending treap, move the best transaction in any of the
    2818             :    conflicting penalty treaps to the pending treap (if there is one). */
    2819             : static ulong
    2820             : delete_transaction( fd_pack_t         * pack,
    2821             :                     fd_pack_ord_txn_t * containing,
    2822             :                     int                 delete_full_bundle,
    2823      495471 :                     int                 move_from_penalty_treap ) {
    2824             : 
    2825      495471 :   fd_txn_t * txn = TXN( containing->txn );
    2826      495471 :   fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, containing->txn->payload );
    2827      495471 :   fd_acct_addr_t const * alt_adj = containing->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    2828             : 
    2829      495471 :   treap_t * root = NULL;
    2830      495471 :   int root_idx = containing->root;
    2831      495471 :   fd_pack_penalty_treap_t * penalty_treap = NULL;
    2832      495471 :   switch( root_idx & FD_ORD_TXN_ROOT_TAG_MASK ) {
    2833           0 :     case FD_ORD_TXN_ROOT_FREE:           FD_LOG_CRIT(( "Double free detected" ));
    2834      492291 :     case FD_ORD_TXN_ROOT_PENDING:        root = pack->pending;         break;
    2835           0 :     case FD_ORD_TXN_ROOT_PENDING_VOTE:   root = pack->pending_votes;   break;
    2836         519 :     case FD_ORD_TXN_ROOT_PENDING_BUNDLE: root = pack->pending_bundles; break;
    2837        2661 :     case FD_ORD_TXN_ROOT_PENALTY( 0 ): {
    2838        2661 :       fd_acct_addr_t penalty_acct = *ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( root_idx ) );
    2839        2661 :       penalty_treap = penalty_map_query( pack->penalty_treaps, penalty_acct, NULL );
    2840        2661 :       FD_TEST( penalty_treap );
    2841        2661 :       root = penalty_treap->penalty_treap;
    2842        2661 :       break;
    2843        2661 :     }
    2844      495471 :   }
    2845             : 
    2846      495471 :   ulong delete_cnt = 0UL;
    2847      495471 :   if( FD_UNLIKELY( delete_full_bundle & (root==pack->pending_bundles) ) ) {
    2848             :     /* When we delete, the structure of the treap may move around, but
    2849             :        pointers to inside the pool will remain valid */
    2850         123 :     fd_pack_ord_txn_t * bundle_ptrs[ FD_PACK_MAX_TXN_PER_BUNDLE-1UL ];
    2851         123 :     fd_pack_ord_txn_t * pool       = pack->pool;
    2852         123 :     ulong               cnt        = 0UL;
    2853         123 :     ulong               bundle_idx = RC_TO_REL_BUNDLE_IDX( containing->rewards, containing->compute_est );
    2854             : 
    2855             :     /* Iterate in both directions from the current transaction */
    2856         123 :     for( treap_fwd_iter_t _cur=treap_fwd_iter_next( (treap_fwd_iter_t)treap_idx_fast( containing, pool ), pool );
    2857         426 :         !treap_fwd_iter_done( _cur ); _cur=treap_fwd_iter_next( _cur, pool ) ) {
    2858         303 :       fd_pack_ord_txn_t * cur = treap_fwd_iter_ele( _cur, pool );
    2859         303 :       if( FD_LIKELY( bundle_idx==RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est ) ) ) {
    2860         303 :         bundle_ptrs[ cnt++ ] = cur;
    2861         303 :       } else {
    2862           0 :         break;
    2863           0 :       }
    2864         303 :       FD_TEST( cnt<FD_PACK_MAX_TXN_PER_BUNDLE );
    2865         303 :     }
    2866             : 
    2867         123 :     for( treap_rev_iter_t _cur=treap_rev_iter_next( (treap_rev_iter_t)treap_idx_fast( containing, pool ), pool );
    2868         216 :         !treap_rev_iter_done( _cur ); _cur=treap_rev_iter_next( _cur, pool ) ) {
    2869          93 :       fd_pack_ord_txn_t * cur = treap_rev_iter_ele( _cur, pool );
    2870          93 :       if( FD_LIKELY( bundle_idx==RC_TO_REL_BUNDLE_IDX( cur->rewards, cur->compute_est ) ) ) {
    2871          93 :         bundle_ptrs[ cnt++ ] = cur;
    2872          93 :       } else {
    2873           0 :         break;
    2874           0 :       }
    2875          93 :       FD_TEST( cnt<FD_PACK_MAX_TXN_PER_BUNDLE );
    2876          93 :     }
    2877             : 
    2878             :     /* Delete them each, setting delete_full_bundle to 0 to avoid
    2879             :        infinite recursion. */
    2880         519 :     for( ulong k=0UL; k<cnt; k++ ) delete_cnt += delete_transaction( pack, bundle_ptrs[ k ], 0, 0 );
    2881         123 :   }
    2882             : 
    2883             : 
    2884      495471 :   if( FD_UNLIKELY( move_from_penalty_treap & (root==pack->pending) ) ) {
    2885             : 
    2886      492285 :     fd_pack_ord_txn_t       * best         = NULL;
    2887      492285 :     fd_pack_penalty_treap_t * best_penalty = NULL;
    2888             : 
    2889      492285 :     for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    2890      986394 :         iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2891      494109 :       fd_pack_penalty_treap_t * p_trp = penalty_map_query( pack->penalty_treaps, *ACCT_ITER_TO_PTR( iter ), NULL );
    2892      494109 :       if( FD_UNLIKELY( p_trp ) ) {
    2893        1289 :         fd_pack_ord_txn_t * best_in_trp = treap_rev_iter_ele( treap_rev_iter_init( p_trp->penalty_treap, pack->pool ), pack->pool );
    2894        1289 :         if( FD_UNLIKELY( !best || COMPARE_WORSE( best, best_in_trp ) ) ) {
    2895         672 :           best         = best_in_trp;
    2896         672 :           best_penalty = p_trp;
    2897         672 :         }
    2898        1289 :       }
    2899      494109 :     }
    2900             : 
    2901      492285 :     if( FD_LIKELY( best ) ) {
    2902             :       /* move best to the main treap */
    2903         672 :       treap_ele_remove( best_penalty->penalty_treap, best, pack->pool );
    2904         672 :       best->root = FD_ORD_TXN_ROOT_PENDING;
    2905         672 :       treap_ele_insert( pack->pending,               best, pack->pool );
    2906             : 
    2907         672 :       pack->pending_smallest->cus   = fd_ulong_min( pack->pending_smallest->cus,   best->compute_est             );
    2908         672 :       pack->pending_smallest->bytes = fd_ulong_min( pack->pending_smallest->bytes, best->txn_e->txnp->payload_sz );
    2909             : 
    2910         672 :       if( FD_UNLIKELY( !treap_ele_cnt( best_penalty->penalty_treap ) ) ) {
    2911           9 :         treap_delete( treap_leave( best_penalty->penalty_treap ) );
    2912           9 :         penalty_map_remove( pack->penalty_treaps, best_penalty );
    2913           9 :       }
    2914         672 :     }
    2915      492285 :   }
    2916             : 
    2917      495471 :   for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_ALL );
    2918     2004108 :       iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    2919     1508637 :     if( FD_UNLIKELY( fd_pack_unwritable_contains( ACCT_ITER_TO_PTR( iter ) ) ) ) continue;
    2920             : 
    2921     1012098 :     release_result_t ret = release_bit_reference( pack, ACCT_ITER_TO_PTR( iter ) );
    2922     1012098 :     FD_PACK_BITSET_CLEARN( pack->bitset_rw_in_use, ret.clear_rw_bit );
    2923     1012098 :     FD_PACK_BITSET_CLEARN( pack->bitset_w_in_use,  ret.clear_w_bit  );
    2924     1012098 :   }
    2925             : 
    2926      495471 :   if( FD_UNLIKELY( containing->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE ) ) {
    2927         261 :     noncemap_ele_remove_fast( pack->noncemap, containing, pack->pool );
    2928         261 :   }
    2929      495471 :   expq_remove( pack->expiration_q, containing->expq_idx );
    2930      495471 :   containing->root = FD_ORD_TXN_ROOT_FREE;
    2931      495471 :   treap_ele_remove( root, containing, pack->pool );
    2932      495471 :   sig2txn_ele_remove_fast( pack->signature_map, containing, pack->pool );
    2933      495471 :   trp_pool_ele_release( pack->pool, containing );
    2934             : 
    2935      495471 :   delete_cnt += 1UL;
    2936      495471 :   pack->pending_txn_cnt--;
    2937             : 
    2938      495471 :   if( FD_UNLIKELY( penalty_treap && treap_ele_cnt( root )==0UL ) ) {
    2939           0 :     penalty_map_remove( pack->penalty_treaps, penalty_treap );
    2940           0 :   }
    2941             : 
    2942      495471 :   return delete_cnt;
    2943      495471 : }
    2944             : 
    2945             : ulong
    2946             : fd_pack_delete_transaction( fd_pack_t              * pack,
    2947         180 :                             fd_ed25519_sig_t const * sig0 ) {
    2948         180 :   ulong cnt = 0;
    2949         180 :   ulong next = ULONG_MAX;
    2950         180 :   for( ulong idx = sig2txn_idx_query_const( pack->signature_map, (wrapped_sig_t const *)sig0, ULONG_MAX, pack->pool );
    2951         336 :       idx!=ULONG_MAX; idx=next ) {
    2952             :     /* Iterating while deleting, not just this element, but perhaps the
    2953             :        whole bundle, feels a bit dangerous, but is actually fine because
    2954             :        a bundle can't contain two transactions with the same signature.
    2955             :        That means we know next is not part of the same bundle as idx,
    2956             :        which means that deleting idx will not delete next. */
    2957         156 :     next = sig2txn_idx_next_const( idx, ULONG_MAX, pack->pool );
    2958         156 :     cnt += delete_transaction( pack, pack->pool+idx, 1, 1 );
    2959         156 :   }
    2960             : 
    2961         180 :   return cnt;
    2962         180 : }
    2963             : 
    2964             : 
    2965             : int
    2966             : fd_pack_verify( fd_pack_t * pack,
    2967         438 :                 void      * scratch ) {
    2968             :   /* Invariants:
    2969             :      sig2txn_query has exact same contents as all treaps combined
    2970             :      root matches treap
    2971             :      Keys of acct_to_bitset is exactly union of all accounts in all
    2972             :             transactions in treaps, with ref counted appropriately
    2973             :      bits in bitset_avail is complement of bits allocated in
    2974             :             acct_to_bitset
    2975             :      expires_at consistent between treap, prq
    2976             :      use_by_bank does not contain duplicates
    2977             :      use_by_bank consistent with acct_in_use
    2978             :      elements in pool but not in a treap have root set to free
    2979             :      all penalty treaps have at least one transaction
    2980             :      all elements in penalty treaps are in the one that the root indicates
    2981             :      */
    2982             : 
    2983             :   /* TODO:
    2984             :      bitset_{r}w_in_use = bitset_map_query( everything in acct_in_use that doesn't have FD_PACK_IN_USE_BIT_CLEARED )
    2985             :      bitset_w_in_use & bitset_rw_in_use == bitset_w_in_use
    2986             :      */
    2987      316762 : #define VERIFY_TEST( cond, ... ) do {   \
    2988      316762 :     if( FD_UNLIKELY( !(cond) ) ) {      \
    2989           0 :       FD_LOG_WARNING(( __VA_ARGS__ ));  \
    2990           0 :       return -(__LINE__);               \
    2991           0 :     }                                   \
    2992      316762 :   } while( 0 )
    2993             : 
    2994         438 :   ulong max_acct_in_treap  = pack->pack_depth * FD_TXN_ACCT_ADDR_MAX;
    2995         438 :   int lg_acct_in_trp = fd_ulong_find_msb( fd_ulong_pow2_up( 2UL*max_acct_in_treap  ) );
    2996         438 :   void * _bitset_map_copy = scratch;
    2997         438 :   void * _bitset_map_orig = bitset_map_leave( pack->acct_to_bitset );
    2998         438 :   fd_memcpy( _bitset_map_copy, _bitset_map_orig, bitset_map_footprint( lg_acct_in_trp ) );
    2999             : 
    3000         438 :   fd_pack_bitset_acct_mapping_t * bitset_copy = bitset_map_join( _bitset_map_copy );
    3001             : 
    3002             :   /* Check that each bit is in exactly one place */
    3003         438 :   FD_PACK_BITSET_DECLARE( processed ); FD_PACK_BITSET_CLEAR( processed );
    3004         438 :   FD_PACK_BITSET_DECLARE( bit       ); FD_PACK_BITSET_CLEAR( bit       );
    3005         438 :   FD_PACK_BITSET_DECLARE( full      ); FD_PACK_BITSET_CLEAR( full      );
    3006             : 
    3007         438 :   if( FD_UNLIKELY( pack->bitset_avail[0]!=FD_PACK_BITSET_SLOWPATH ) ) return -1;
    3008      149264 :   for( ulong i=1UL; i<=pack->bitset_avail_cnt; i++ ) {
    3009      148826 :     FD_PACK_BITSET_CLEAR( bit );
    3010      148826 :     FD_PACK_BITSET_SETN( bit, pack->bitset_avail[ i ] );
    3011      148826 :     VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, processed, processed ),
    3012      148826 :         "bit %hu in avail set twice", pack->bitset_avail[ i ] );
    3013      148826 :     FD_PACK_BITSET_OR( processed, bit );
    3014      148826 :   }
    3015             : 
    3016         438 :   ulong total_references = 0UL;
    3017  1589281206 :   for( ulong i=0UL; i<bitset_map_slot_cnt( bitset_copy ); i++ ) {
    3018  1589280768 :     if( !bitset_map_key_inval( bitset_copy[ i ].key ) ) {
    3019        1080 :       VERIFY_TEST( bitset_copy[ i ].ref_cnt>0UL, "account address in table with 0 ref count" );
    3020             : 
    3021        1080 :       total_references += bitset_copy[ i ].ref_cnt;
    3022             : 
    3023        1080 :       FD_PACK_BITSET_CLEAR( bit );
    3024        1080 :       FD_PACK_BITSET_SETN( bit, bitset_copy[ i ].bit );
    3025        1080 :       VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, processed, processed ), "bit %hu used twice", bitset_copy[ i ].bit );
    3026        1080 :       FD_PACK_BITSET_OR( processed, bit );
    3027        1080 :     }
    3028  1589280768 :   }
    3029      149942 :   for( ulong i=0UL; i<FD_PACK_BITSET_MAX; i++ ) {
    3030      149504 :     FD_PACK_BITSET_CLEAR( bit );
    3031      149504 :     FD_PACK_BITSET_SETN( bit, i );
    3032      149504 :     VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, processed, processed ), "bit %lu missing", i );
    3033      149504 :     FD_PACK_BITSET_SETN( full, i );
    3034      149504 :   }
    3035             : 
    3036             : 
    3037         438 :   fd_pack_ord_txn_t  * pool = pack->pool;
    3038         438 :   treap_t * treaps[ 3 ] = { pack->pending, pack->pending_votes, pack->pending_bundles };
    3039         438 :   ulong txn_cnt = 0UL;
    3040             : 
    3041    24834264 :   for( ulong k=0UL; k<3UL+penalty_map_slot_cnt( pack->penalty_treaps ); k++ ) {
    3042    24833826 :     treap_t * treap = NULL;
    3043             : 
    3044    24833826 :     if( k<3UL ) treap = treaps[ k ];
    3045    24832512 :     else if( FD_LIKELY( penalty_map_key_inval( pack->penalty_treaps[ k-3UL ].key ) ) ) continue;
    3046           0 :     else {
    3047           0 :       treap = pack->penalty_treaps[ k-3UL ].penalty_treap;
    3048           0 :       VERIFY_TEST( treap_ele_cnt( treap )>0UL, "empty penalty treap in map" );
    3049           0 :     }
    3050             : 
    3051        1737 :     for( treap_rev_iter_t _cur=treap_rev_iter_init( treap, pool ); !treap_rev_iter_done( _cur );
    3052        1314 :         _cur=treap_rev_iter_next( _cur, pool ) ) {
    3053         423 :       txn_cnt++;
    3054         423 :       fd_pack_ord_txn_t const * cur = treap_rev_iter_ele_const( _cur, pool );
    3055         423 :       fd_txn_t const * txn = TXN(cur->txn);
    3056         423 :       fd_acct_addr_t const * accts   = fd_txn_get_acct_addrs( txn, cur->txn->payload );
    3057         423 :       fd_acct_addr_t const * alt_adj = cur->txn_e->alt_accts - fd_txn_account_cnt( txn, FD_TXN_ACCT_CAT_IMM );
    3058             : 
    3059         423 :       fd_ed25519_sig_t const * sig0 = fd_txn_get_signatures( txn, cur->txn->payload );
    3060             : 
    3061         423 :       fd_pack_ord_txn_t const * in_tbl = sig2txn_ele_query_const( pack->signature_map, (wrapped_sig_t const *)sig0, NULL, pool );
    3062         423 :       VERIFY_TEST( in_tbl, "signature missing from sig2txn" );
    3063             : 
    3064         423 :       VERIFY_TEST( (ulong)(cur->root & FD_ORD_TXN_ROOT_TAG_MASK)==fd_ulong_min( k, 3UL )+1UL, "treap element had bad root" );
    3065         423 :       if( FD_LIKELY( (cur->root & FD_ORD_TXN_ROOT_TAG_MASK)==FD_ORD_TXN_ROOT_PENALTY(0) ) ) {
    3066           0 :         fd_acct_addr_t const * penalty_acct = ACCT_IDX_TO_PTR( FD_ORD_TXN_ROOT_PENALTY_ACCT_IDX( cur->root ) );
    3067           0 :         VERIFY_TEST( !memcmp( penalty_acct, pack->penalty_treaps[ k-3UL ].key.b, 32UL ), "transaction in wrong penalty treap" );
    3068           0 :       }
    3069         423 :       VERIFY_TEST( cur->expires_at>=pack->expire_before, "treap element expired" );
    3070             : 
    3071         423 :       fd_pack_expq_t const * eq = pack->expiration_q + cur->expq_idx;
    3072         423 :       VERIFY_TEST( eq->txn==cur, "expq inconsistent" );
    3073         423 :       VERIFY_TEST( eq->expires_at==cur->expires_at, "expq expires_at inconsistent" );
    3074             : 
    3075         423 :       FD_PACK_BITSET_DECLARE( complement );
    3076         423 :       FD_PACK_BITSET_COPY( complement, full );
    3077         423 :       for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_WRITABLE );
    3078        1413 :           iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3079         990 :         fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    3080             : 
    3081         990 :         fd_pack_bitset_acct_mapping_t * q = bitset_map_query( bitset_copy, acct, NULL );
    3082         990 :         VERIFY_TEST( q, "account in transaction missing from bitset mapping" );
    3083         990 :         VERIFY_TEST( q->ref_cnt>0UL, "account in transaction ref_cnt already 0" );
    3084         990 :         q->ref_cnt--;
    3085         990 :         total_references--;
    3086             : 
    3087         990 :         FD_PACK_BITSET_CLEAR( bit );
    3088         990 :         FD_PACK_BITSET_SETN( bit, q->bit );
    3089         990 :         if( q->bit<FD_PACK_BITSET_MAX ) {
    3090         597 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, cur->rw_bitset, cur->rw_bitset ), "missing from rw bitset" );
    3091         597 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, cur->w_bitset,  cur->w_bitset  ), "missing from w bitset" );
    3092         597 :         }
    3093         990 :         FD_PACK_BITSET_CLEARN( complement, q->bit );
    3094         990 :       }
    3095         423 :       VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( complement, complement, cur->w_bitset,  cur->w_bitset ), "extra in w bitset" );
    3096             : 
    3097         423 :       for( fd_txn_acct_iter_t iter=fd_txn_acct_iter_init( txn, FD_TXN_ACCT_CAT_READONLY );
    3098        1836 :           iter!=fd_txn_acct_iter_end(); iter=fd_txn_acct_iter_next( iter ) ) {
    3099             : 
    3100        1413 :         fd_acct_addr_t acct = *ACCT_ITER_TO_PTR( iter );
    3101        1413 :         if( FD_UNLIKELY( fd_pack_unwritable_contains( &acct ) ) ) continue;
    3102         888 :         fd_pack_bitset_acct_mapping_t * q = bitset_map_query( bitset_copy, acct, NULL );
    3103         888 :         VERIFY_TEST( q, "account in transaction missing from bitset mapping" );
    3104         888 :         VERIFY_TEST( q->ref_cnt>0UL, "account in transaction ref_cnt already 0" );
    3105         888 :         q->ref_cnt--;
    3106         888 :         total_references--;
    3107             : 
    3108         888 :         FD_PACK_BITSET_CLEAR( bit );
    3109         888 :         FD_PACK_BITSET_SETN( bit, q->bit );
    3110         888 :         if( q->bit<FD_PACK_BITSET_MAX ) {
    3111         879 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, cur->rw_bitset, cur->rw_bitset ), "missing from rw bitset" );
    3112         879 :         }
    3113         888 :         FD_PACK_BITSET_CLEARN( complement, q->bit );
    3114         888 :       }
    3115         423 :       VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( complement, complement, cur->rw_bitset,  cur->rw_bitset ), "extra in rw bitset" );
    3116         423 :     }
    3117        1314 :   }
    3118             : 
    3119         438 :   bitset_map_leave( bitset_copy );
    3120         438 :   VERIFY_TEST( txn_cnt==pack->pending_txn_cnt, "txn_cnt" );
    3121             : 
    3122         438 :   VERIFY_TEST( total_references==0UL, "extra references in bitset mapping" );
    3123         438 :   ulong sig2txn_key_cnt = 0UL;
    3124         438 :   for( sig2txn_iter_t iter = sig2txn_iter_init( pack->signature_map, pool );
    3125         861 :       !sig2txn_iter_done( iter, pack->signature_map, pool );
    3126         438 :       iter = sig2txn_iter_next( iter, pack->signature_map, pool ) ) {
    3127         423 :     sig2txn_key_cnt++;
    3128         423 :   }
    3129         438 :   VERIFY_TEST( txn_cnt==sig2txn_key_cnt, "extra signatures in sig2txn" );
    3130         438 :   VERIFY_TEST( !sig2txn_verify( pack->signature_map, trp_pool_max( pool ), pool ), "sig2txn corrupt" );
    3131             : 
    3132             :   /* Count noncemap keys */
    3133         438 :   ulong noncemap_key_cnt = 0UL;
    3134         438 :   for( noncemap_iter_t iter = noncemap_iter_init( pack->noncemap, pool );
    3135         486 :       !noncemap_iter_done( iter, pack->noncemap, pool );
    3136         438 :       iter = noncemap_iter_next( iter, pack->noncemap, pool ) ) {
    3137          48 :     noncemap_key_cnt++;
    3138             :     /* Ensure element is in pool */
    3139          48 :     fd_pack_ord_txn_t const * ord = noncemap_iter_ele_const( iter, pack->noncemap, pool );
    3140          48 :     VERIFY_TEST( ord->txn->flags & FD_TXN_P_FLAGS_DURABLE_NONCE, "invalid entry in noncemap" );
    3141             : 
    3142             :     /* Although pack allows multiple transactions with the same
    3143             :        signature in sig2txn (MAP_MULTI==1), the noncemap checks prevent
    3144             :        multiple nonce transactions with the same signature. */
    3145          48 :     wrapped_sig_t sig = FD_LOAD( wrapped_sig_t, fd_txn_get_signatures( TXN( ord->txn ), ord->txn->payload ) );
    3146          48 :     VERIFY_TEST( ord==sig2txn_ele_query_const( pack->signature_map, &sig, NULL, pool ), "noncemap and sig2txn desynced" );
    3147          48 :   }
    3148         438 :   VERIFY_TEST( txn_cnt>=noncemap_key_cnt, "phantom txns in noncemap" );
    3149         438 :   VERIFY_TEST( !noncemap_verify( pack->noncemap, trp_pool_max( pool ), pool ), "noncemap corrupt" );
    3150             : 
    3151         438 :   ulong slots_found = 0UL;
    3152         438 :   ulong const pool_max = trp_pool_max( pool );
    3153     3890922 :   for( ulong i=0UL; i<pool_max; i++ ) {
    3154     3890484 :     fd_pack_ord_txn_t * ord = pack->pool + i;
    3155     3890484 :     if( ord->root!=FD_ORD_TXN_ROOT_FREE ) slots_found++;
    3156     3890484 :   }
    3157         438 :   VERIFY_TEST( slots_found==txn_cnt, "phantom slots in pool" );
    3158             : 
    3159         438 :   bitset_map_join( _bitset_map_orig );
    3160             : 
    3161         438 :   int lg_uses_tbl_sz = acct_uses_lg_slot_cnt( pack->acct_in_use );
    3162             : 
    3163         438 :   void * _acct_in_use_copy = scratch;
    3164         438 :   void * _acct_in_use_orig = acct_uses_leave( pack->acct_in_use );
    3165         438 :   fd_memcpy( _acct_in_use_copy, _acct_in_use_orig, acct_uses_footprint( lg_uses_tbl_sz ) );
    3166             : 
    3167         438 :   fd_pack_addr_use_t * acct_in_use_copy = acct_uses_join( _acct_in_use_copy );
    3168             : 
    3169         438 :   FD_PACK_BITSET_DECLARE(  w_complement );
    3170         438 :   FD_PACK_BITSET_DECLARE( rw_complement );
    3171         438 :   FD_PACK_BITSET_COPY(  w_complement, full );
    3172         438 :   FD_PACK_BITSET_COPY( rw_complement, full );
    3173             : 
    3174         438 :   FD_PACK_BITSET_DECLARE( rw_bitset );  FD_PACK_BITSET_COPY( rw_bitset, pack->bitset_rw_in_use );
    3175         438 :   FD_PACK_BITSET_DECLARE(  w_bitset );  FD_PACK_BITSET_COPY(  w_bitset, pack->bitset_w_in_use  );
    3176             : 
    3177             : 
    3178         438 :   ulong const EMPTY_MASK = ~(FD_PACK_IN_USE_WRITABLE | FD_PACK_IN_USE_BIT_CLEARED);
    3179             : 
    3180       12255 :   for( ulong bank=0UL; bank<pack->bank_tile_cnt; bank++ ) {
    3181             : 
    3182       11817 :     fd_pack_addr_use_t const * base = pack->use_by_bank[ bank ];
    3183       11817 :     ulong bank_mask = 1UL << bank;
    3184             : 
    3185       12672 :     for( ulong i=0UL; i<pack->use_by_bank_cnt[ bank ]; i++ ) {
    3186         855 :       fd_pack_addr_use_t * use = acct_uses_query( acct_in_use_copy, base[i].key, NULL );
    3187         855 :       VERIFY_TEST( use, "acct in use by bank not in acct_in_use, or in uses_by_bank twice" );
    3188             : 
    3189         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" );
    3190             : 
    3191         855 :       fd_pack_bitset_acct_mapping_t * q = bitset_map_query( pack->acct_to_bitset, base[i].key, NULL );
    3192             :       /* The normal case is that the acct->bit mapping is preserved
    3193             :          while in use by other transactions in the pending list.  This
    3194             :          might not always happen though.  It's okay for the mapping to
    3195             :          get deleted while the acct is in use, which is noted with
    3196             :          BIT_CLEARED.  If that is set, the mapping may not exist, or it
    3197             :          may have been re-created, perhaps with a different bit. */
    3198         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" );
    3199           0 :       else if( !(use->in_use_by & FD_PACK_IN_USE_BIT_CLEARED) ) {
    3200           0 :         FD_PACK_BITSET_CLEAR( bit );
    3201           0 :         FD_PACK_BITSET_SETN( bit, q->bit );
    3202           0 :         if( q->bit<FD_PACK_BITSET_MAX ) {
    3203           0 :           VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, rw_bitset, rw_bitset ), "missing from rw bitset" );
    3204           0 :           if( use->in_use_by & FD_PACK_IN_USE_WRITABLE ) {
    3205           0 :             VERIFY_TEST( !FD_PACK_BITSET_INTERSECT4_EMPTY( bit, bit, w_bitset, w_bitset ), "missing from w bitset" );
    3206           0 :             FD_PACK_BITSET_CLEARN( w_complement, q->bit );
    3207           0 :           }
    3208           0 :         }
    3209           0 :         FD_PACK_BITSET_CLEARN( rw_complement, q->bit );
    3210           0 :       }
    3211         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" );
    3212             : 
    3213         855 :       use->in_use_by &= ~bank_mask;
    3214         855 :       if( !(use->in_use_by & EMPTY_MASK) ) acct_uses_remove( acct_in_use_copy, use );
    3215         855 :     }
    3216       11817 :   }
    3217         438 :   VERIFY_TEST( acct_uses_key_cnt( acct_in_use_copy )==0UL, "stray uses in acct_in_use" );
    3218         438 :   VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY( rw_complement, rw_complement, rw_bitset,  rw_bitset ), "extra in rw bitset" );
    3219         438 :   VERIFY_TEST( FD_PACK_BITSET_INTERSECT4_EMPTY(  w_complement,  w_complement,  w_bitset,   w_bitset ), "extra in w bitset" );
    3220             : 
    3221         438 :   acct_uses_leave( acct_in_use_copy );
    3222             : 
    3223         438 :   acct_uses_join( _acct_in_use_orig );
    3224         438 :   return 0;
    3225         438 : }
    3226             : 
    3227           3 : void * fd_pack_leave ( fd_pack_t * pack ) { FD_COMPILER_MFENCE(); return (void *)pack; }
    3228           3 : void * fd_pack_delete( void      * mem  ) { FD_COMPILER_MFENCE(); return mem;          }

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