LCOV - code coverage report
Current view: top level - discof/execle - fd_execle_tile.c (source / functions) Hit Total Coverage
Test: cov.lcov Lines: 0 475 0.0 %
Date: 2026-06-29 05:51:35 Functions: 0 26 0.0 %

          Line data    Source code
       1             : #include "fd_execle_err.h"
       2             : 
       3             : #include "../../disco/tiles.h"
       4             : #include "../../disco/pack/fd_pack.h"
       5             : #include "../../disco/pack/fd_pack_cost.h"
       6             : #include "../../ballet/blake3/fd_blake3.h"
       7             : #include "../../ballet/bmtree/fd_bmtree.h"
       8             : #include "../../disco/metrics/fd_metrics.h"
       9             : #include "../../util/pod/fd_pod_format.h"
      10             : #include "../../disco/pack/fd_pack_rebate_sum.h"
      11             : #include "../../disco/metrics/generated/fd_metrics_enums.h"
      12             : #include "../../discof/fd_startup.h"
      13             : #include "../../flamenco/runtime/fd_runtime.h"
      14             : #include "../../flamenco/runtime/fd_bank.h"
      15             : #include "../../flamenco/progcache/fd_progcache_user.h"
      16             : #include "../../flamenco/log_collector/fd_log_collector_base.h"
      17             : #include <time.h>
      18             : #include "generated/fd_execle_tile_seccomp.h"
      19             : 
      20             : struct fd_execle_out {
      21             :   ulong       idx;
      22             :   fd_wksp_t * mem;
      23             :   ulong       chunk0;
      24             :   ulong       wmark;
      25             :   ulong       chunk;
      26             : };
      27             : 
      28             : typedef struct fd_execle_out fd_execle_out_t;
      29             : 
      30             : struct fd_execle_tile {
      31             :   ulong kind_id;
      32             : 
      33             :   fd_blake3_t * blake3;
      34             :   void * bmtree;
      35             : 
      36             :   ulong _bank_idx;
      37             :   ulong _pack_idx;
      38             :   ulong _txn_idx;
      39             :   int _is_bundle;
      40             :   fd_acct_addr_t _alt_accts[MAX_TXN_PER_MICROBLOCK][FD_TXN_ACCT_ADDR_MAX];
      41             : 
      42             :   ulong * busy_fseq;
      43             : 
      44             :   fd_wksp_t * pack_in_mem;
      45             :   ulong       pack_in_chunk0;
      46             :   ulong       pack_in_wmark;
      47             : 
      48             :   fd_execle_out_t out_poh[1];
      49             :   fd_execle_out_t out_pack[1];
      50             : 
      51             :   ulong rebates_for_slot;
      52             :   int enable_rebates;
      53             :   fd_pack_rebate_sum_t rebater[ 1 ];
      54             : 
      55             :   fd_banks_t * banks;
      56             :   fd_accdb_t * accdb;
      57             : 
      58             :   fd_progcache_t  progcache[1];
      59             : 
      60             :   fd_runtime_t runtime[1];
      61             : 
      62             :   /* For bundle execution, we need to execute each transaction against
      63             :      a separate transaction context and a set of accounts, but the exec
      64             :      stack can be reused.  We will also use these same memory regions
      65             :      for non-bundle execution. */
      66             :   fd_txn_in_t  txn_in[ FD_PACK_MAX_TXN_PER_BUNDLE ];
      67             :   fd_txn_out_t txn_out[ FD_PACK_MAX_TXN_PER_BUNDLE ];
      68             : 
      69             :   fd_log_collector_t log_collector[ 1 ];
      70             : 
      71             :   float ns_per_tick;
      72             : 
      73             :   struct {
      74             :     ulong txn_result[ FD_METRICS_ENUM_TRANSACTION_RESULT_CNT ];
      75             :     ulong txn_landed[ FD_METRICS_ENUM_TRANSACTION_LANDED_CNT ];
      76             : 
      77             :     /* Ticks spent loading txn accounts */
      78             :     ulong txn_load_cum_ticks;
      79             : 
      80             :     /* Ticks spent validating txn invariants (e.g. status cache, fee payer) */
      81             :     ulong txn_check_cum_ticks;
      82             : 
      83             :     /* Ticks spent executing a txn (includes any VM time) */
      84             :     ulong txn_exec_cum_ticks;
      85             : 
      86             :     /* Ticks spent committing a txn (database writes) */
      87             :     ulong txn_commit_cum_ticks;
      88             :   } metrics;
      89             : };
      90             : 
      91             : typedef struct fd_execle_tile fd_execle_tile_t;
      92             : 
      93             : FD_FN_CONST static inline ulong
      94           0 : scratch_align( void ) {
      95           0 :   return 128UL;
      96           0 : }
      97             : 
      98             : FD_FN_PURE static inline ulong
      99           0 : scratch_footprint( fd_topo_tile_t const * tile ) {
     100           0 :   ulong l = FD_LAYOUT_INIT;
     101           0 :   l = FD_LAYOUT_APPEND( l, alignof( fd_execle_tile_t ), sizeof( fd_execle_tile_t ) );
     102           0 :   l = FD_LAYOUT_APPEND( l, FD_BLAKE3_ALIGN,             FD_BLAKE3_FOOTPRINT );
     103           0 :   l = FD_LAYOUT_APPEND( l, FD_BMTREE_COMMIT_ALIGN,      FD_BMTREE_COMMIT_FOOTPRINT(0) );
     104           0 :   l = FD_LAYOUT_APPEND( l, fd_txncache_align(),         fd_txncache_footprint( tile->execle.max_live_slots ) );
     105           0 :   l = FD_LAYOUT_APPEND( l, fd_accdb_align(),            fd_accdb_footprint( tile->execle.max_live_slots ) );
     106           0 :   l = FD_LAYOUT_APPEND( l, FD_PROGCACHE_SCRATCH_ALIGN,  FD_PROGCACHE_SCRATCH_FOOTPRINT );
     107           0 :   return FD_LAYOUT_FINI( l, scratch_align() );
     108           0 : }
     109             : 
     110             : static inline void
     111           0 : metrics_write( fd_execle_tile_t * ctx ) {
     112           0 :   FD_MCNT_ENUM_COPY( EXECLE, TXN_RESULT, ctx->metrics.txn_result );
     113           0 :   FD_MCNT_ENUM_COPY( EXECLE, TXN_LANDED, ctx->metrics.txn_landed );
     114             : 
     115           0 :   FD_MCNT_SET( EXECLE, CU_EXECUTED, ctx->runtime->metrics.cu_cum );
     116             : 
     117           0 :   FD_MCNT_SET( EXECLE, TXN_REGIME_DURATION_NANOS_SETUP,  ctx->metrics.txn_check_cum_ticks+ctx->metrics.txn_load_cum_ticks );
     118           0 :   FD_MCNT_SET( EXECLE, TXN_REGIME_DURATION_NANOS_EXEC,   ctx->metrics.txn_exec_cum_ticks    );
     119           0 :   FD_MCNT_SET( EXECLE, TXN_REGIME_DURATION_NANOS_COMMIT, ctx->metrics.txn_commit_cum_ticks  );
     120             : 
     121           0 :   fd_runtime_t const * runtime = ctx->runtime;
     122           0 :   ulong cpi_ticks  = runtime->metrics.cpi_setup_cum_ticks + runtime->metrics.cpi_commit_cum_ticks;
     123           0 :   ulong exec_ticks = fd_ulong_sat_sub( runtime->metrics.vm_exec_cum_ticks, cpi_ticks );
     124           0 :   FD_MCNT_SET( EXECLE, VM_REGIME_DURATION_NANOS_SETUP,       runtime->metrics.vm_setup_cum_ticks   );
     125           0 :   FD_MCNT_SET( EXECLE, VM_REGIME_DURATION_NANOS_COMMIT,      runtime->metrics.vm_commit_cum_ticks  );
     126           0 :   FD_MCNT_SET( EXECLE, VM_REGIME_DURATION_NANOS_SETUP_CPI,   runtime->metrics.cpi_setup_cum_ticks  );
     127           0 :   FD_MCNT_SET( EXECLE, VM_REGIME_DURATION_NANOS_COMMIT_CPI,  runtime->metrics.cpi_commit_cum_ticks );
     128           0 :   FD_MCNT_SET( EXECLE, VM_REGIME_DURATION_NANOS_INTERPRETER, exec_ticks                            );
     129             : 
     130           0 :   FD_ACCDB_METRICS_WRITE( EXECLE, fd_accdb_metrics( ctx->accdb ) );
     131           0 : }
     132             : 
     133             : static int
     134             : before_frag( fd_execle_tile_t * ctx,
     135             :              ulong              in_idx,
     136             :              ulong              seq,
     137           0 :              ulong              sig ) {
     138           0 :   (void)in_idx; (void)seq;
     139             : 
     140             :   /* Pack also outputs "leader slot done" which we can ignore. */
     141           0 :   if( FD_UNLIKELY( fd_disco_poh_sig_pkt_type( sig )!=POH_PKT_TYPE_MICROBLOCK ) ) return 1;
     142             : 
     143           0 :   ulong target_execle_kind_id = fd_disco_poh_sig_execle_tile( sig );
     144           0 :   if( FD_UNLIKELY( target_execle_kind_id!=ctx->kind_id ) ) return 1;
     145             : 
     146           0 :   return 0;
     147           0 : }
     148             : 
     149             : static inline void
     150             : during_frag( fd_execle_tile_t * ctx,
     151             :              ulong              in_idx,
     152             :              ulong              seq,
     153             :              ulong              sig,
     154             :              ulong              chunk,
     155             :              ulong              sz,
     156           0 :              ulong              ctl ) {
     157           0 :   (void)in_idx; (void)seq; (void)sig; (void)ctl;
     158             : 
     159           0 :   uchar * src = (uchar *)fd_chunk_to_laddr( ctx->pack_in_mem, chunk );
     160           0 :   uchar * dst = (uchar *)fd_chunk_to_laddr( ctx->out_poh->mem, ctx->out_poh->chunk );
     161             : 
     162           0 :   if( FD_UNLIKELY( chunk<ctx->pack_in_chunk0 || chunk>ctx->pack_in_wmark || sz>USHORT_MAX ) )
     163           0 :     FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz, ctx->pack_in_chunk0, ctx->pack_in_wmark ));
     164             : 
     165             :   /* Pack sends fd_txn_e_t (with ALT accounts), but PoH expects fd_txn_p_t.
     166             :      We copy the fd_txn_p_t portion to the PoH output buffer, and copy the
     167             :      ALT accounts to the tile context for rebates. */
     168           0 :   ulong txn_cnt = (sz-sizeof(fd_microblock_execle_trailer_t))/sizeof(fd_txn_e_t);
     169           0 :   fd_txn_e_t const * src_txn_e = (fd_txn_e_t const *)src;
     170           0 :   fd_txn_p_t       * dst_txn_p = (fd_txn_p_t       *)dst;
     171           0 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
     172           0 :     fd_memcpy( dst_txn_p + i, src_txn_e[i].txnp, sizeof(fd_txn_p_t) );
     173           0 :     ulong alt_cnt = fd_ulong_min( (ulong)TXN(src_txn_e[i].txnp)->addr_table_adtl_cnt, FD_TXN_ACCT_ADDR_MAX );
     174           0 :     fd_memcpy( ctx->_alt_accts[i], src_txn_e[i].alt_accts, alt_cnt * sizeof(fd_acct_addr_t) );
     175           0 :   }
     176             : 
     177           0 :   fd_microblock_execle_trailer_t * trailer = (fd_microblock_execle_trailer_t *)( src+sz-sizeof(fd_microblock_execle_trailer_t) );
     178           0 :   ctx->_bank_idx  = trailer->bank_idx;
     179           0 :   ctx->_pack_idx  = trailer->pack_idx;
     180           0 :   ctx->_txn_idx   = trailer->pack_txn_idx;
     181           0 :   ctx->_is_bundle = trailer->is_bundle;
     182           0 : }
     183             : 
     184             : static void
     185             : hash_transactions( void *       mem,
     186             :                    fd_txn_p_t * txns,
     187             :                    ulong        txn_cnt,
     188           0 :                    uchar *      mixin ) {
     189           0 :   fd_bmtree_commit_t * bmtree = fd_bmtree_commit_init( mem, 32UL, 1UL, 0UL );
     190           0 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
     191           0 :     fd_txn_p_t * _txn = txns + i;
     192           0 :     if( FD_UNLIKELY( !(_txn->flags & FD_TXN_P_FLAGS_EXECUTE_SUCCESS) ) ) continue;
     193             : 
     194           0 :     fd_txn_t * txn = TXN(_txn);
     195           0 :     for( ulong j=0; j<txn->signature_cnt; j++ ) {
     196           0 :       fd_bmtree_node_t node[1];
     197           0 :       fd_bmtree_hash_leaf( node, _txn->payload+txn->signature_off+64UL*j, 64UL, 1UL );
     198           0 :       fd_bmtree_commit_append( bmtree, node, 1UL );
     199           0 :     }
     200           0 :   }
     201           0 :   if( FD_LIKELY( fd_bmtree_commit_leaf_cnt( bmtree ) ) ) {
     202           0 :     uchar * root = fd_bmtree_commit_fini( bmtree );
     203           0 :     fd_memcpy( mixin, root, 32UL );
     204           0 :   } else {
     205           0 :     fd_memset( mixin, 0, 32UL );
     206             :     /* If FD_HAS_MSAN, poison so we can detect if this is ever accessed upstream, even though it should never be.  In production, this is a no-op. */
     207           0 :     fd_msan_poison( mixin, 32UL );
     208           0 :   }
     209           0 : }
     210             : 
     211             : static inline void
     212             : handle_microblock( fd_execle_tile_t *  ctx,
     213             :                    ulong               seq,
     214             :                    ulong               sig,
     215             :                    ulong               sz,
     216             :                    ulong               begin_tspub,
     217           0 :                    fd_stem_context_t * stem ) {
     218           0 :   long const microblock_start_ticks = fd_frag_meta_ts_decomp( begin_tspub, fd_tickcount() );
     219             : 
     220           0 :   uchar * dst = (uchar *)fd_chunk_to_laddr( ctx->out_poh->mem, ctx->out_poh->chunk );
     221             : 
     222           0 :   ulong slot = fd_disco_poh_sig_slot( sig );
     223           0 :   ulong txn_cnt = (sz-sizeof(fd_microblock_execle_trailer_t))/sizeof(fd_txn_e_t);
     224             : 
     225           0 :   fd_bank_t * bank = fd_banks_bank_query( ctx->banks, ctx->_bank_idx );
     226           0 :   FD_TEST( bank );
     227           0 :   ulong bank_slot = bank->f.slot;
     228           0 :   FD_TEST( bank_slot==slot );
     229             : 
     230           0 :   fd_microblock_trailer_t * trailer = (fd_microblock_trailer_t *)( dst + txn_cnt*sizeof(fd_txn_p_t) );
     231           0 :   trailer->txn_ns_dt = (fd_txn_ns_dt_t){0};
     232             : 
     233           0 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
     234           0 :     fd_txn_p_t *   txn     = (fd_txn_p_t *)( dst + (i*sizeof(fd_txn_p_t)) );
     235           0 :     fd_txn_in_t *  txn_in  = &ctx->txn_in[ 0 ];
     236           0 :     fd_txn_out_t * txn_out = &ctx->txn_out[ 0 ];
     237             : 
     238           0 :     uint const requested_exec_plus_acct_data_cus = txn->pack_cu.requested_exec_plus_acct_data_cus;
     239           0 :     uint const non_execution_cus                 = txn->pack_cu.non_execution_cus;
     240             : 
     241             :     /* Assume failure, set below if success.  If it doesn't land in the
     242             :        block, rebate the non-execution CUs too. */
     243           0 :     txn->execle_cu.actual_consumed_cus = 0U;
     244           0 :     txn->execle_cu.rebated_cus = requested_exec_plus_acct_data_cus + non_execution_cus;
     245           0 :     txn->flags &= ~FD_TXN_P_FLAGS_SANITIZE_SUCCESS;
     246           0 :     txn->flags &= ~FD_TXN_P_FLAGS_EXECUTE_SUCCESS;
     247             : 
     248           0 :     txn_in->bundle.is_bundle = 0;
     249           0 :     txn_in->txn              = txn;
     250             : 
     251           0 :     fd_runtime_prepare_and_execute_txn( ctx->runtime, bank, txn_in, txn_out );
     252             : 
     253             :     /* Stash the result in the flags value so that pack can inspect it. */
     254           0 :     txn->flags = (txn->flags & 0x00FFFFFFU) | ((uint)(-txn_out->err.txn_err)<<24);
     255             : 
     256           0 :     if( FD_UNLIKELY( !txn_out->err.is_committable ) ) {
     257           0 :       FD_TEST( !txn_out->err.is_fees_only );
     258           0 :       fd_runtime_cancel_txn( ctx->runtime, txn_out );
     259             :       /* Use pre-resolved ALT accounts for rebates even for unlanded transactions */
     260           0 :       fd_acct_addr_t const * writable_alt = ctx->_alt_accts[i];
     261           0 :       if( FD_LIKELY( ctx->enable_rebates ) ) fd_pack_rebate_sum_add_txn( ctx->rebater, txn, &writable_alt, 1UL );
     262           0 :       ctx->metrics.txn_landed[ FD_METRICS_ENUM_TRANSACTION_LANDED_V_UNLANDED_IDX ]++;
     263           0 :       ctx->metrics.txn_result[ fd_execle_err_from_runtime_err( txn_out->err.txn_err ) ]++;
     264           0 :       continue;
     265           0 :     }
     266             : 
     267             :     /* Check for FeesOnly transactions where actual CUs exceed
     268             :        requested.  This can happen for durable nonce transactions
     269             :        with oversized nonce accounts.  Skip the commit to prevent
     270             :        underflow in the rebate computation.  The transaction keeps its
     271             :        default full rebate set at the top of the loop. */
     272           0 :     if( FD_UNLIKELY( txn_out->err.is_fees_only ) ) {
     273           0 :       uint fee_only_actual_exec_cus = (uint)(txn_out->details.compute_budget.compute_unit_limit - txn_out->details.compute_budget.compute_meter);
     274           0 :       uint fee_only_actual_data_cus = (uint)(txn_out->details.txn_cost.transaction.loaded_accounts_data_size_cost);
     275           0 :       if( FD_UNLIKELY( fee_only_actual_exec_cus + fee_only_actual_data_cus > requested_exec_plus_acct_data_cus ) ) {
     276           0 :         FD_LOG_WARNING(( "FeesOnly txn actual CUs (%u+%u) exceed requested (%u), dropping",
     277           0 :                          fee_only_actual_exec_cus, fee_only_actual_data_cus, requested_exec_plus_acct_data_cus ));
     278           0 :         txn_out->err.is_committable = 0;
     279           0 :         fd_runtime_cancel_txn( ctx->runtime, txn_out );
     280             :         /* txn->execle_cu already initialized to full rebate at top of loop */
     281           0 :         fd_acct_addr_t const * writable_alt = ctx->_alt_accts[i];
     282           0 :         if( FD_LIKELY( ctx->enable_rebates ) ) fd_pack_rebate_sum_add_txn( ctx->rebater, txn, &writable_alt, 1UL );
     283           0 :         ctx->metrics.txn_landed[ FD_METRICS_ENUM_TRANSACTION_LANDED_V_UNLANDED_IDX ]++;
     284           0 :         ctx->metrics.txn_result[ fd_execle_err_from_runtime_err( txn_out->err.txn_err ) ]++;
     285             :         /* FD_TXN_P_FLAGS_EXECUTE_SUCCESS = 0 ensures txn won't be
     286             :            mixed-in by POH */
     287           0 :         continue;
     288           0 :       }
     289           0 :     }
     290             : 
     291           0 :     if( FD_UNLIKELY( txn_out->err.is_fees_only ) ) ctx->metrics.txn_landed[ FD_METRICS_ENUM_TRANSACTION_LANDED_V_LANDED_FEES_ONLY_IDX ]++;
     292           0 :     else if( FD_UNLIKELY( txn_out->err.txn_err ) ) ctx->metrics.txn_landed[ FD_METRICS_ENUM_TRANSACTION_LANDED_V_LANDED_FAILED_IDX    ]++;
     293           0 :     else                                           ctx->metrics.txn_landed[ FD_METRICS_ENUM_TRANSACTION_LANDED_V_LANDED_SUCCESS_IDX   ]++;
     294             : 
     295             :     /* TXN_P_FLAGS_EXECUTE_SUCCESS means that it should be included in
     296             :        the block.  It's a bit of a misnomer now that there are fee-only
     297             :        transactions. */
     298           0 :     txn->flags |= FD_TXN_P_FLAGS_EXECUTE_SUCCESS | FD_TXN_P_FLAGS_SANITIZE_SUCCESS;
     299           0 :     ctx->metrics.txn_result[ fd_execle_err_from_runtime_err( txn_out->err.txn_err ) ]++;
     300             : 
     301             :     /* Commit must succeed so no failure path.  Once commit is called,
     302             :        the transactions MUST be mixed into the PoH otherwise we will
     303             :        fork and diverge, so the link from here til PoH mixin must be
     304             :        completely reliable with nothing dropped.
     305             : 
     306             :        fd_runtime_commit_txn checks if the transaction fits into the
     307             :        block with the cost tracker.  If it doesn't fit, flags is set to
     308             :        zero.  A key invariant of the leader pipeline is that pack
     309             :        ensures all transactions must fit already, so it is a fatal error
     310             :        if that happens.  We cannot reject the transaction here as there
     311             :        would be no way to undo the partially applied changes to the bank
     312             :        in finalize anyway. */
     313           0 :     fd_runtime_commit_txn( ctx->runtime, bank, txn_out );
     314             : 
     315           0 :     long const txn_end_ticks = fd_tickcount();
     316             : 
     317           0 :     ulong const load_ticks_dt   = fd_ulong_if( txn_out->details.check_start_ticks==LONG_MAX  || txn_out->details.load_start_ticks==LONG_MAX,   0UL, (ulong)( txn_out->details.check_start_ticks  - txn_out->details.load_start_ticks   ) );
     318           0 :     ulong const check_ticks_dt  = fd_ulong_if( txn_out->details.exec_start_ticks==LONG_MAX   || txn_out->details.check_start_ticks==LONG_MAX,  0UL, (ulong)( txn_out->details.exec_start_ticks   - txn_out->details.check_start_ticks  ) );
     319           0 :     ulong const exec_ticks_dt   = fd_ulong_if( txn_out->details.commit_start_ticks==LONG_MAX || txn_out->details.exec_start_ticks==LONG_MAX,   0UL, (ulong)( txn_out->details.commit_start_ticks - txn_out->details.exec_start_ticks   ) );
     320           0 :     ulong const commit_ticks_dt = fd_ulong_if( txn_end_ticks==LONG_MAX                       || txn_out->details.commit_start_ticks==LONG_MAX, 0UL, (ulong)( txn_end_ticks                       - txn_out->details.commit_start_ticks ) );
     321             : 
     322           0 :     ctx->metrics.txn_load_cum_ticks   += load_ticks_dt;
     323           0 :     ctx->metrics.txn_check_cum_ticks  += check_ticks_dt;
     324           0 :     ctx->metrics.txn_exec_cum_ticks   += exec_ticks_dt;
     325           0 :     ctx->metrics.txn_commit_cum_ticks += commit_ticks_dt;
     326             : 
     327           0 :     trailer->txn_ns_dt.load_start   = fd_float_if( txn_out->details.load_start_ticks==LONG_MAX,   0.,                              (float)fd_long_max( 0L, txn_out->details.load_start_ticks   - microblock_start_ticks ) * ctx->ns_per_tick );
     328           0 :     trailer->txn_ns_dt.check_start  = fd_float_if( txn_out->details.check_start_ticks==LONG_MAX,  trailer->txn_ns_dt.load_start,   (float)fd_long_max( 0L, txn_out->details.check_start_ticks  - microblock_start_ticks ) * ctx->ns_per_tick );
     329           0 :     trailer->txn_ns_dt.exec_start   = fd_float_if( txn_out->details.exec_start_ticks==LONG_MAX,   trailer->txn_ns_dt.check_start,  (float)fd_long_max( 0L, txn_out->details.exec_start_ticks   - microblock_start_ticks ) * ctx->ns_per_tick );
     330           0 :     trailer->txn_ns_dt.commit_start = fd_float_if( txn_out->details.commit_start_ticks==LONG_MAX, trailer->txn_ns_dt.exec_start,   (float)fd_long_max( 0L, txn_out->details.commit_start_ticks - microblock_start_ticks ) * ctx->ns_per_tick );
     331           0 :     trailer->txn_ns_dt.commit_end   = fd_float_if( txn_end_ticks==LONG_MAX,                       trailer->txn_ns_dt.commit_start, (float)fd_long_max( 0L, txn_end_ticks                       - microblock_start_ticks ) * ctx->ns_per_tick );
     332             : 
     333           0 :     if( FD_UNLIKELY( !txn_out->err.is_committable ) ) {
     334             :       /* If the transaction failed to fit into the block, we need to
     335             :          updated the transaction flag with the error code. */
     336           0 :       txn->flags = (txn->flags & 0x00FFFFFFU) | ((uint)(-txn_out->err.txn_err)<<24);
     337           0 :       fd_cost_tracker_t * cost_tracker = fd_bank_cost_tracker_modify( bank );
     338           0 :       uchar * signature = (uchar *)txn_in->txn->payload + TXN( txn_in->txn )->signature_off;
     339           0 :       int err = fd_cost_tracker_try_add_cost( cost_tracker, txn_out );
     340           0 :       FD_LOG_HEXDUMP_WARNING(( "txn", txn->payload, txn->payload_sz ));
     341           0 :       FD_BASE58_ENCODE_64_BYTES( signature, signature_b58 );
     342           0 :       FD_LOG_CRIT(( "transaction %s failed to fit into block despite pack guaranteeing it would "
     343           0 :                     "(res=%d) [block_cost=%lu, vote_cost=%lu, allocated_accounts_data_size=%lu, "
     344           0 :                     "block_cost_limit=%lu, vote_cost_limit=%lu, account_cost_limit=%lu]",
     345           0 :                     signature_b58, err, cost_tracker->block_cost, cost_tracker->vote_cost,
     346           0 :                     cost_tracker->allocated_accounts_data_size,
     347           0 :                     cost_tracker->block_cost_limit, cost_tracker->vote_cost_limit,
     348           0 :                     cost_tracker->account_cost_limit ));
     349           0 :     }
     350             : 
     351           0 :     uint actual_execution_cus = (uint)(txn_out->details.compute_budget.compute_unit_limit - txn_out->details.compute_budget.compute_meter);
     352           0 :     uint actual_acct_data_cus = (uint)(txn_out->details.txn_cost.transaction.loaded_accounts_data_size_cost);
     353             : 
     354             :     /* The VM will stop executing and fail an instruction immediately if
     355             :        it exceeds its requested CUs.  A transaction which requests less
     356             :        account data than it actually consumes will fail in the account
     357             :        loading stage. */
     358           0 :     if( FD_UNLIKELY( actual_execution_cus + actual_acct_data_cus > requested_exec_plus_acct_data_cus ) ) {
     359           0 :       uchar * _signature = (uchar *)txn->payload + TXN( txn )->signature_off;
     360           0 :       FD_BASE58_ENCODE_64_BYTES( _signature, _signature_b58 );
     361           0 :       fd_cost_tracker_t const * _ct = fd_bank_cost_tracker_query( bank );
     362           0 :       FD_LOG_HEXDUMP_WARNING(( "txn", txn->payload, txn->payload_sz ));
     363           0 :       FD_LOG_ERR(( "transaction %s actual CUs (%u+%u) exceeded requested (%u) despite pack guaranteeing it would fit "
     364           0 :                    "[is_simple_vote=%i, is_fees_only=%i, block_cost=%lu, vote_cost=%lu, block_cost_limit=%lu, "
     365           0 :                    "vote_cost_limit=%lu, account_cost_limit=%lu]",
     366           0 :                    _signature_b58, actual_execution_cus, actual_acct_data_cus, requested_exec_plus_acct_data_cus,
     367           0 :                    fd_txn_is_simple_vote_transaction( TXN(txn), txn->payload ),
     368           0 :                    txn_out->err.is_fees_only, _ct->block_cost, _ct->vote_cost, _ct->block_cost_limit,
     369           0 :                    _ct->vote_cost_limit, _ct->account_cost_limit ));
     370           0 :     }
     371             : 
     372           0 :     int is_simple_vote = fd_txn_is_simple_vote_transaction( TXN(txn), txn->payload );
     373           0 :     if( FD_UNLIKELY( is_simple_vote && !FD_FEATURE_ACTIVE_BANK( bank, remove_simple_vote_from_cost_model ) ) ) {
     374             :       /* TODO: remove this once remove_simple_vote_from_cost_model is
     375             :          activated */
     376           0 :       txn->execle_cu.actual_consumed_cus = (uint)(FD_PACK_FIXED_SIMPLE_VOTE_COST);
     377           0 :       txn->execle_cu.rebated_cus         = non_execution_cus + requested_exec_plus_acct_data_cus - (uint)(FD_PACK_FIXED_SIMPLE_VOTE_COST);
     378           0 :     } else {
     379           0 :       txn->execle_cu.rebated_cus         = requested_exec_plus_acct_data_cus - (actual_execution_cus + actual_acct_data_cus);
     380           0 :       txn->execle_cu.actual_consumed_cus = non_execution_cus + actual_execution_cus + actual_acct_data_cus;
     381           0 :     }
     382             : 
     383             :     /* Use ALT accounts copied in during_frag for rebates.
     384             :        These were resolved by resolv_tile and are needed because the LUT
     385             :        may be deactivated by the time we get here. */
     386           0 :     fd_acct_addr_t const * writable_alt = ctx->_alt_accts[i];
     387           0 :     if( FD_LIKELY( ctx->enable_rebates ) ) fd_pack_rebate_sum_add_txn( ctx->rebater, txn, &writable_alt, 1UL );
     388           0 :   }
     389             : 
     390             :   /* Indicate to pack tile we are done processing the transactions so
     391             :      it can pack new microblocks using these accounts. */
     392           0 :   fd_fseq_update( ctx->busy_fseq, seq );
     393             : 
     394             :   /* Now produce the merkle hash of the transactions for inclusion
     395             :      (mixin) to the PoH hash.  This is done on the execle tile because
     396             :      it shards / scales horizontally here, while PoH does not. */
     397           0 :   hash_transactions( ctx->bmtree, (fd_txn_p_t*)dst, txn_cnt, trailer->hash );
     398           0 :   trailer->pack_txn_idx = ctx->_txn_idx;
     399           0 :   trailer->tips         = ctx->txn_out[ 0 ].details.tips;
     400             : 
     401             :   /* When sending MAX_TXN_PER_MICROBLOCK transactions as fd_txn_p_t to PoH,
     402             :      there's always extra bytes at the end to stash the trailer. */
     403           0 :   FD_STATIC_ASSERT( MAX_MICROBLOCK_SZ-(MAX_TXN_PER_MICROBLOCK*sizeof(fd_txn_p_t))>=sizeof(fd_microblock_trailer_t), poh_shred_mtu );
     404           0 :   FD_STATIC_ASSERT( MAX_MICROBLOCK_SZ-(MAX_TXN_PER_MICROBLOCK*sizeof(fd_txn_p_t))>=sizeof(fd_microblock_execle_trailer_t), poh_shred_mtu );
     405             : 
     406             :   /* We have a race window with the GUI, where if the slot is ending it
     407             :      will snap these metrics to draw the waterfall, but see them outdated
     408             :      because housekeeping hasn't run.  For now just update them here, but
     409             :      PoH should eventually flush the pipeline before ending the slot. */
     410           0 :   metrics_write( ctx );
     411             : 
     412           0 :   ulong execle_sig = fd_disco_execle_sig( slot, ctx->_pack_idx );
     413             : 
     414             :   /* We always need to publish, even if there are no successfully executed
     415             :      transactions so the PoH tile can keep an accurate count of microblocks
     416             :      it has seen. */
     417           0 :   ulong new_sz = txn_cnt*sizeof(fd_txn_p_t) + sizeof(fd_microblock_trailer_t);
     418           0 :   fd_stem_publish( stem, ctx->out_poh->idx, execle_sig, ctx->out_poh->chunk, new_sz, 0UL, (ulong)fd_frag_meta_ts_comp( microblock_start_ticks ), (ulong)fd_frag_meta_ts_comp( fd_tickcount() ) );
     419           0 :   ctx->out_poh->chunk = fd_dcache_compact_next( ctx->out_poh->chunk, new_sz, ctx->out_poh->chunk0, ctx->out_poh->wmark );
     420           0 : }
     421             : 
     422             : static inline void
     423             : handle_bundle( fd_execle_tile_t *  ctx,
     424             :                ulong               seq,
     425             :                ulong               sig,
     426             :                ulong               sz,
     427             :                ulong               begin_tspub,
     428           0 :                fd_stem_context_t * stem ) {
     429           0 :   long const microblock_start_ticks = fd_frag_meta_ts_decomp( begin_tspub, fd_tickcount() );
     430             : 
     431           0 :   fd_txn_p_t * txns = (fd_txn_p_t *)fd_chunk_to_laddr( ctx->out_poh->mem, ctx->out_poh->chunk );
     432             : 
     433           0 :   ulong slot = fd_disco_poh_sig_slot( sig );
     434           0 :   ulong txn_cnt = (sz-sizeof(fd_microblock_execle_trailer_t))/sizeof(fd_txn_e_t);
     435             : 
     436           0 :   fd_bank_t * bank = fd_banks_bank_query( ctx->banks, ctx->_bank_idx );
     437           0 :   FD_TEST( bank );
     438           0 :   ulong bank_slot = bank->f.slot;
     439           0 :   FD_TEST( bank_slot==slot );
     440             : 
     441           0 :   fd_acct_addr_t const * writable_alt [ MAX_TXN_PER_MICROBLOCK ];
     442           0 :   ulong                  tips         [ MAX_TXN_PER_MICROBLOCK ] = { 0U };
     443           0 :   long                   txn_end_ticks[ MAX_TXN_PER_MICROBLOCK ];
     444           0 :   for( ulong i=0UL; i<MAX_TXN_PER_MICROBLOCK; i++ ) txn_end_ticks[ i ] = LONG_MAX;
     445             : 
     446             :   /* Pre-populate ALT accounts for all transactions for rebates.
     447             :      These were copied in during_frag from the source fd_txn_e_t,
     448             :      resolved by fd_resolv_tile. */
     449           0 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
     450           0 :     writable_alt[i]                   = ctx->_alt_accts[i];
     451           0 :     ctx->txn_in[ i ].txn              = &txns[ i ];
     452           0 :     ctx->txn_in[ i ].bundle.is_bundle = 1;
     453           0 :   }
     454             : 
     455             : 
     456           0 :   int   execution_success = 1;
     457           0 :   ulong failed_idx        = ULONG_MAX;
     458             : 
     459             :   /* Acquire all accdb resources in order to execute the bundle. */
     460           0 :   int setup_bundle = 1;
     461           0 :   int err = fd_runtime_prepare_bundle_accounts( ctx->runtime, bank, ctx->txn_in, ctx->txn_out, txn_cnt );
     462           0 :   if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
     463           0 :     execution_success = 0;
     464           0 :     failed_idx        = 0;
     465           0 :     setup_bundle      = 0;
     466           0 :   }
     467             : 
     468             :   /* Every transaction in the bundle should be executed in order against
     469             :      different transaciton contexts. */
     470           0 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
     471             : 
     472           0 :     fd_txn_p_t *   txn     = &txns[ i ];
     473           0 :     fd_txn_in_t *  txn_in  = &ctx->txn_in[ i ];
     474           0 :     fd_txn_out_t * txn_out = &ctx->txn_out[ i ];
     475             : 
     476           0 :     txn_out->err.txn_err = FD_RUNTIME_EXECUTE_SUCCESS;
     477             : 
     478           0 :     txn->flags &= ~FD_TXN_P_FLAGS_SANITIZE_SUCCESS;
     479           0 :     txn->flags &= ~FD_TXN_P_FLAGS_EXECUTE_SUCCESS;
     480             : 
     481           0 :     if( execution_success==0 ) {
     482           0 :       txn->flags = (txn->flags & 0x00FFFFFFU) | ((uint)(-FD_RUNTIME_TXN_ERR_BUNDLE_PEER)<<24);
     483           0 :       continue;
     484           0 :     }
     485             : 
     486           0 :     txn_in->txn              = txn;
     487           0 :     txn_in->bundle.is_bundle = 1;
     488             : 
     489           0 :     fd_runtime_prepare_and_execute_txn( ctx->runtime, bank, txn_in, txn_out );
     490             : 
     491           0 :     txn->flags = (txn->flags & 0x00FFFFFFU) | ((uint)(-txn_out->err.txn_err)<<24);
     492           0 :     if( FD_UNLIKELY( !txn_out->err.is_committable || txn_out->err.txn_err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
     493           0 :       execution_success = 0;
     494           0 :       failed_idx = i;
     495           0 :       continue;
     496           0 :     }
     497           0 :   }
     498             : 
     499             :   /* If all of the transactions in the bundle executed successfully, we
     500             :      can commit the transactions in order.  At this point, we cann also
     501             :      accumulate unused CUs to the rebate.  Otherwise, if any transaction
     502             :      fails, we need to exclude all the bundle transactions and rebate
     503             :      all of the CUs. */
     504           0 :   if( FD_LIKELY( execution_success ) ) {
     505           0 :     for( ulong i=0UL; i<txn_cnt; i++ ) {
     506             : 
     507           0 :       fd_txn_in_t *  txn_in    = &ctx->txn_in[ i ];
     508           0 :       fd_txn_out_t * txn_out   = &ctx->txn_out[ i ];
     509           0 :       uchar *        signature = (uchar *)txn_in->txn->payload + TXN( txn_in->txn )->signature_off;
     510             : 
     511           0 :       fd_runtime_commit_txn( ctx->runtime, bank, txn_out );
     512             : 
     513           0 :       txn_end_ticks[ i ] = fd_tickcount();
     514             : 
     515           0 :       if( FD_UNLIKELY( !txn_out->err.is_committable ) ) {
     516           0 :         txns[ i ].flags = (txns[ i ].flags & 0x00FFFFFFU) | ((uint)(-txn_out->err.txn_err)<<24);
     517           0 :         fd_cost_tracker_t * cost_tracker = fd_bank_cost_tracker_modify( bank );
     518           0 :         int err = fd_cost_tracker_try_add_cost( cost_tracker, txn_out );
     519           0 :         FD_LOG_HEXDUMP_WARNING(( "txn", txns[ i ].payload, txns[ i ].payload_sz ));
     520           0 :         FD_BASE58_ENCODE_64_BYTES( signature, signature_b58 );
     521           0 :         FD_LOG_CRIT(( "transaction %s failed to fit into block despite pack guaranteeing it would "
     522           0 :                       "(res=%d) [block_cost=%lu, vote_cost=%lu, allocated_accounts_data_size=%lu, "
     523           0 :                       "block_cost_limit=%lu, vote_cost_limit=%lu, account_cost_limit=%lu, "
     524           0 :                       "remove_simple_vote_from_cost_model=%i]",
     525           0 :                       signature_b58, err, cost_tracker->block_cost, cost_tracker->vote_cost,
     526           0 :                       cost_tracker->allocated_accounts_data_size,
     527           0 :                       cost_tracker->block_cost_limit, cost_tracker->vote_cost_limit,
     528           0 :                       cost_tracker->account_cost_limit,
     529           0 :                       cost_tracker->remove_simple_vote_from_cost_model ));
     530           0 :       }
     531             : 
     532           0 :       uint actual_execution_cus              = (uint)(txn_out->details.compute_budget.compute_unit_limit - txn_out->details.compute_budget.compute_meter);
     533           0 :       uint actual_acct_data_cus              = (uint)(txn_out->details.txn_cost.transaction.loaded_accounts_data_size_cost);
     534           0 :       uint non_execution_cus                 = txns[ i ].pack_cu.non_execution_cus;
     535           0 :       uint requested_exec_plus_acct_data_cus = txns[ i ].pack_cu.requested_exec_plus_acct_data_cus;
     536             : 
     537           0 :       int is_simple_vote = fd_txn_is_simple_vote_transaction( TXN( &txns[ i ] ), txns[ i ].payload );
     538           0 :       if( FD_UNLIKELY( is_simple_vote && !FD_FEATURE_ACTIVE_BANK( bank, remove_simple_vote_from_cost_model ) ) ) {
     539             :         /* TODO: remove this once remove_simple_vote_from_cost_model is
     540             :            activated */
     541           0 :         txns[ i ].execle_cu.actual_consumed_cus = (uint)(FD_PACK_FIXED_SIMPLE_VOTE_COST);
     542           0 :         txns[ i ].execle_cu.rebated_cus         = non_execution_cus + requested_exec_plus_acct_data_cus - (uint)(FD_PACK_FIXED_SIMPLE_VOTE_COST);
     543           0 :       } else {
     544           0 :         if( FD_UNLIKELY( actual_execution_cus + actual_acct_data_cus > requested_exec_plus_acct_data_cus ) ) {
     545           0 :           FD_BASE58_ENCODE_64_BYTES( signature, signature_b58 );
     546           0 :           fd_cost_tracker_t const * _ct = fd_bank_cost_tracker_query( bank );
     547           0 :           FD_LOG_HEXDUMP_WARNING(( "txn", txns[ i ].payload, txns[ i ].payload_sz ));
     548           0 :           FD_LOG_ERR(( "transaction %s actual CUs (%u+%u) exceeded requested (%u) despite pack guaranteeing it would "
     549           0 :                        "fit [block_cost=%lu, vote_cost=%lu, block_cost_limit=%lu, vote_cost_limit=%lu,"
     550           0 :                        "account_cost_limit=%lu]",
     551           0 :                        signature_b58, actual_execution_cus, actual_acct_data_cus, requested_exec_plus_acct_data_cus,
     552           0 :                        _ct->block_cost, _ct->vote_cost, _ct->block_cost_limit, _ct->vote_cost_limit,
     553           0 :                        _ct->account_cost_limit ));
     554           0 :         }
     555           0 :         txns[ i ].execle_cu.rebated_cus         = requested_exec_plus_acct_data_cus - (actual_execution_cus + actual_acct_data_cus);
     556           0 :         txns[ i ].execle_cu.actual_consumed_cus = non_execution_cus + actual_execution_cus + actual_acct_data_cus;
     557           0 :       }
     558             : 
     559           0 :       txns[ i ].flags                        |= FD_TXN_P_FLAGS_EXECUTE_SUCCESS | FD_TXN_P_FLAGS_SANITIZE_SUCCESS;
     560           0 :       tips[ i ]                               = txn_out->details.tips;
     561             : 
     562           0 :       ctx->metrics.txn_landed[ FD_METRICS_ENUM_TRANSACTION_LANDED_V_LANDED_SUCCESS_IDX ]++;
     563           0 :       ctx->metrics.txn_result[ FD_METRICS_ENUM_TRANSACTION_RESULT_V_SUCCESS_IDX        ]++;
     564           0 :     }
     565           0 :   } else {
     566           0 :     FD_TEST( failed_idx != ULONG_MAX );
     567           0 :     for( ulong i=0UL; i<txn_cnt; i++ ) {
     568             : 
     569           0 :       ctx->txn_out[ i ].err.is_committable = 0;
     570             : 
     571           0 :       if( i>failed_idx ) {
     572           0 :         ctx->txn_out[ i ].details.load_start_ticks   = LONG_MAX;
     573           0 :         ctx->txn_out[ i ].details.check_start_ticks  = LONG_MAX;
     574           0 :         ctx->txn_out[ i ].details.exec_start_ticks   = LONG_MAX;
     575           0 :         ctx->txn_out[ i ].details.commit_start_ticks = LONG_MAX;
     576           0 :       }
     577             : 
     578           0 :       uint requested_exec_plus_acct_data_cus  = txns[ i ].pack_cu.requested_exec_plus_acct_data_cus;
     579           0 :       uint non_execution_cus                  = txns[ i ].pack_cu.non_execution_cus;
     580           0 :       txns[ i ].execle_cu.actual_consumed_cus = 0U;
     581           0 :       txns[ i ].execle_cu.rebated_cus         = requested_exec_plus_acct_data_cus + non_execution_cus;
     582           0 :       tips[ i ]                               = 0UL;
     583           0 :       txns[ i ].flags = fd_uint_if( !!(txns[ i ].flags>>24), txns[ i ].flags, txns[ i ].flags | ((uint)(-FD_RUNTIME_TXN_ERR_BUNDLE_PEER)<<24) );
     584             : 
     585           0 :       ctx->metrics.txn_landed[ FD_METRICS_ENUM_TRANSACTION_LANDED_V_UNLANDED_IDX ]++;
     586           0 :       if( i==failed_idx ) ctx->metrics.txn_result[ fd_execle_err_from_runtime_err( ctx->txn_out[ i ].err.txn_err ) ]++;
     587           0 :       else                ctx->metrics.txn_result[ FD_METRICS_ENUM_TRANSACTION_RESULT_V_BUNDLE_PEER_IDX            ]++;
     588           0 :     }
     589           0 :   }
     590             : 
     591           0 :   if( FD_LIKELY( setup_bundle ) ) fd_runtime_fini_bundle( ctx->runtime );
     592             : 
     593           0 :   if( FD_LIKELY( ctx->enable_rebates ) ) fd_pack_rebate_sum_add_txn( ctx->rebater, txns, writable_alt, txn_cnt );
     594             : 
     595             :   /* Indicate to pack tile we are done processing the transactions so
     596             :      it can pack new microblocks using these accounts. */
     597           0 :   fd_fseq_update( ctx->busy_fseq, seq );
     598             : 
     599             :   /* We need to publish each transaction separately into its own
     600             :      microblock, so make a temporary copy on the stack so we can move
     601             :      all the data around. */
     602           0 :   fd_txn_p_t bundle_txn_temp[ 5UL ];
     603           0 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
     604           0 :     bundle_txn_temp[ i ] = txns[ i ];
     605           0 :   }
     606             : 
     607           0 :   for( ulong i=0UL; i<txn_cnt; i++ ) {
     608           0 :     fd_txn_out_t * txn_out   = &ctx->txn_out[ i ];
     609           0 :     uchar * dst = (uchar *)fd_chunk_to_laddr( ctx->out_poh->mem, ctx->out_poh->chunk );
     610           0 :     fd_memcpy( dst, bundle_txn_temp+i, sizeof(fd_txn_p_t) );
     611             : 
     612           0 :     fd_microblock_trailer_t * trailer = (fd_microblock_trailer_t *)( dst+sizeof(fd_txn_p_t) );
     613           0 :     hash_transactions( ctx->bmtree, (fd_txn_p_t*)dst, 1UL, trailer->hash );
     614           0 :     trailer->pack_txn_idx = ctx->_txn_idx + i;
     615           0 :     trailer->tips         = tips[ i ];
     616             : 
     617           0 :     ulong execle_sig = fd_disco_execle_sig( slot, ctx->_pack_idx+i );
     618             : 
     619           0 :     ulong const load_ticks_dt   = fd_ulong_if( txn_out->details.check_start_ticks==LONG_MAX  || txn_out->details.load_start_ticks==LONG_MAX,   0UL, (ulong)( txn_out->details.check_start_ticks  - txn_out->details.load_start_ticks   ) );
     620           0 :     ulong const check_ticks_dt  = fd_ulong_if( txn_out->details.exec_start_ticks==LONG_MAX   || txn_out->details.check_start_ticks==LONG_MAX,  0UL, (ulong)( txn_out->details.exec_start_ticks   - txn_out->details.check_start_ticks  ) );
     621           0 :     ulong const exec_ticks_dt   = fd_ulong_if( txn_out->details.commit_start_ticks==LONG_MAX || txn_out->details.exec_start_ticks==LONG_MAX,   0UL, (ulong)( txn_out->details.commit_start_ticks - txn_out->details.exec_start_ticks   ) );
     622           0 :     ulong const commit_ticks_dt = fd_ulong_if( txn_end_ticks[ i ]==LONG_MAX                  || txn_out->details.commit_start_ticks==LONG_MAX, 0UL, (ulong)( txn_end_ticks[ i ]                  - txn_out->details.commit_start_ticks ) );
     623             : 
     624           0 :     ctx->metrics.txn_load_cum_ticks   += load_ticks_dt;
     625           0 :     ctx->metrics.txn_check_cum_ticks  += check_ticks_dt;
     626           0 :     ctx->metrics.txn_exec_cum_ticks   += exec_ticks_dt;
     627           0 :     ctx->metrics.txn_commit_cum_ticks += commit_ticks_dt;
     628             : 
     629           0 :     trailer->txn_ns_dt.load_start   = fd_float_if( txn_out->details.load_start_ticks==LONG_MAX,   0.,                              (float)fd_long_max( 0L, txn_out->details.load_start_ticks   - microblock_start_ticks ) * ctx->ns_per_tick );
     630           0 :     trailer->txn_ns_dt.check_start  = fd_float_if( txn_out->details.check_start_ticks==LONG_MAX,  trailer->txn_ns_dt.load_start,   (float)fd_long_max( 0L, txn_out->details.check_start_ticks  - microblock_start_ticks ) * ctx->ns_per_tick );
     631           0 :     trailer->txn_ns_dt.exec_start   = fd_float_if( txn_out->details.exec_start_ticks==LONG_MAX,   trailer->txn_ns_dt.check_start,  (float)fd_long_max( 0L, txn_out->details.exec_start_ticks   - microblock_start_ticks ) * ctx->ns_per_tick );
     632           0 :     trailer->txn_ns_dt.commit_start = fd_float_if( txn_out->details.commit_start_ticks==LONG_MAX, trailer->txn_ns_dt.exec_start,   (float)fd_long_max( 0L, txn_out->details.commit_start_ticks - microblock_start_ticks ) * ctx->ns_per_tick );
     633           0 :     trailer->txn_ns_dt.commit_end   = fd_float_if( txn_end_ticks[ i ]==LONG_MAX,                  trailer->txn_ns_dt.commit_start, (float)fd_long_max( 0L, txn_end_ticks[ i ]                  - microblock_start_ticks ) * ctx->ns_per_tick );
     634             : 
     635           0 :     ulong new_sz = sizeof(fd_txn_p_t) + sizeof(fd_microblock_trailer_t);
     636           0 :     fd_stem_publish( stem, ctx->out_poh->idx, execle_sig, ctx->out_poh->chunk, new_sz, 0UL, (ulong)fd_frag_meta_ts_comp( microblock_start_ticks ), (ulong)fd_frag_meta_ts_comp( fd_tickcount() ) );
     637           0 :     ctx->out_poh->chunk = fd_dcache_compact_next( ctx->out_poh->chunk, new_sz, ctx->out_poh->chunk0, ctx->out_poh->wmark );
     638           0 :   }
     639             : 
     640           0 :   metrics_write( ctx );
     641           0 : }
     642             : 
     643             : static inline void
     644             : after_frag( fd_execle_tile_t *  ctx,
     645             :             ulong               in_idx,
     646             :             ulong               seq,
     647             :             ulong               sig,
     648             :             ulong               sz,
     649             :             ulong               tsorig,
     650             :             ulong               tspub,
     651           0 :             fd_stem_context_t * stem ) {
     652           0 :   (void)in_idx;
     653             : 
     654           0 :   ulong slot = fd_disco_poh_sig_slot( sig );
     655           0 :   if( FD_UNLIKELY( slot!=ctx->rebates_for_slot ) ) {
     656             :     /* If pack has already moved on to a new slot, the rebates are no
     657             :        longer useful. */
     658           0 :     if( FD_LIKELY( ctx->enable_rebates ) ) fd_pack_rebate_sum_clear( ctx->rebater );
     659           0 :     ctx->rebates_for_slot = slot;
     660           0 :   }
     661             : 
     662           0 :   if( FD_UNLIKELY( ctx->_is_bundle ) ) handle_bundle( ctx, seq, sig, sz, tspub, stem );
     663           0 :   else                                 handle_microblock( ctx, seq, sig, sz, tspub, stem );
     664             : 
     665             :   /* TODO: Use fancier logic to coalesce rebates e.g. and move this to
     666             :      after_credit */
     667           0 :   if( FD_LIKELY( ctx->enable_rebates ) ) {
     668           0 :     ulong written_sz = 0UL;
     669           0 :     while( 0UL!=(written_sz=fd_pack_rebate_sum_report( ctx->rebater, fd_chunk_to_laddr( ctx->out_pack->mem, ctx->out_pack->chunk ) )) ) {
     670           0 :       ulong tspub = (ulong)fd_frag_meta_ts_comp( fd_tickcount() );
     671           0 :       fd_stem_publish( stem, ctx->out_pack->idx, slot, ctx->out_pack->chunk, written_sz, 0UL, tsorig, tspub );
     672           0 :       ctx->out_pack->chunk = fd_dcache_compact_next( ctx->out_pack->chunk, written_sz, ctx->out_pack->chunk0, ctx->out_pack->wmark );
     673           0 :     }
     674           0 :   }
     675           0 : }
     676             : 
     677             : static inline fd_execle_out_t
     678             : out1( fd_topo_t const *      topo,
     679             :       fd_topo_tile_t const * tile,
     680           0 :       char const *           name ) {
     681           0 :   ulong idx = ULONG_MAX;
     682             : 
     683           0 :   for( ulong i=0UL; i<tile->out_cnt; i++ ) {
     684           0 :     fd_topo_link_t const * link = &topo->links[ tile->out_link_id[ i ] ];
     685           0 :     if( !strcmp( link->name, name ) ) {
     686           0 :       if( FD_UNLIKELY( idx!=ULONG_MAX ) ) FD_LOG_ERR(( "tile %s:%lu had multiple output links named %s but expected one", tile->name, tile->kind_id, name ));
     687           0 :       idx = i;
     688           0 :     }
     689           0 :   }
     690             : 
     691           0 :   if( FD_UNLIKELY( idx==ULONG_MAX ) ) return (fd_execle_out_t){ .idx = ULONG_MAX, .mem = NULL, .chunk0 = 0, .wmark = 0, .chunk = 0 };
     692             : 
     693           0 :   void * mem = topo->workspaces[ topo->objs[ topo->links[ tile->out_link_id[ idx ] ].dcache_obj_id ].wksp_id ].wksp;
     694           0 :   ulong chunk0 = fd_dcache_compact_chunk0( mem, topo->links[ tile->out_link_id[ idx ] ].dcache );
     695           0 :   ulong wmark  = fd_dcache_compact_wmark ( mem, topo->links[ tile->out_link_id[ idx ] ].dcache, topo->links[ tile->out_link_id[ idx ] ].mtu );
     696             : 
     697           0 :   return (fd_execle_out_t){ .idx = idx, .mem = mem, .chunk0 = chunk0, .wmark = wmark, .chunk = chunk0 };
     698           0 : }
     699             : 
     700             : static void
     701             : unprivileged_init( fd_topo_t const *      topo,
     702           0 :                    fd_topo_tile_t const * tile ) {
     703           0 :   void * scratch = fd_topo_obj_laddr( topo, tile->tile_obj_id );
     704             : 
     705           0 :   FD_SCRATCH_ALLOC_INIT( l, scratch );
     706           0 :   fd_execle_tile_t * ctx = FD_SCRATCH_ALLOC_APPEND( l, alignof(fd_execle_tile_t),  sizeof(fd_execle_tile_t) );
     707           0 :   void * blake3          = FD_SCRATCH_ALLOC_APPEND( l, FD_BLAKE3_ALIGN,            FD_BLAKE3_FOOTPRINT );
     708           0 :   void * bmtree          = FD_SCRATCH_ALLOC_APPEND( l, FD_BMTREE_COMMIT_ALIGN,     FD_BMTREE_COMMIT_FOOTPRINT(0) );
     709           0 :   void * _txncache       = FD_SCRATCH_ALLOC_APPEND( l, fd_txncache_align(),        fd_txncache_footprint( tile->execle.max_live_slots ) );
     710           0 :   void * _accdb          = FD_SCRATCH_ALLOC_APPEND( l, fd_accdb_align(),           fd_accdb_footprint( tile->execle.max_live_slots ) );
     711           0 :   void * pc_scratch      = FD_SCRATCH_ALLOC_APPEND( l, FD_PROGCACHE_SCRATCH_ALIGN, FD_PROGCACHE_SCRATCH_FOOTPRINT );
     712             : 
     713           0 : #define NONNULL( x ) (__extension__({                                        \
     714           0 :       __typeof__((x)) __x = (x);                                             \
     715           0 :       if( FD_UNLIKELY( !__x ) ) FD_LOG_ERR(( #x " was unexpectedly NULL" )); \
     716           0 :       __x; }))
     717             : 
     718           0 :   ctx->kind_id   = tile->kind_id;
     719           0 :   ctx->blake3    = NONNULL( fd_blake3_join( fd_blake3_new( blake3 ) ) );
     720           0 :   ctx->bmtree    = NONNULL( bmtree );
     721             : 
     722           0 :   NONNULL( fd_pack_rebate_sum_join( fd_pack_rebate_sum_new( ctx->rebater ) ) );
     723           0 :   ctx->rebates_for_slot  = 0UL;
     724             : 
     725           0 :   FD_TEST( fd_progcache_join( ctx->progcache,
     726           0 :       fd_topo_obj_laddr( topo, tile->execle.progcache_obj_id ),
     727           0 :       pc_scratch, FD_PROGCACHE_SCRATCH_FOOTPRINT ) );
     728             : 
     729           0 :   void * _txncache_shmem = fd_topo_obj_laddr( topo, tile->execle.txncache_obj_id );
     730           0 :   fd_txncache_shmem_t * txncache_shmem = fd_txncache_shmem_join( _txncache_shmem );
     731           0 :   FD_TEST( txncache_shmem );
     732           0 :   fd_txncache_t * txncache = fd_txncache_join( fd_txncache_new( _txncache, txncache_shmem ) );
     733           0 :   FD_TEST( txncache );
     734             : 
     735           0 :   void * _accdb_shmem = fd_topo_obj_laddr( topo, tile->execle.accdb_obj_id );
     736           0 :   fd_accdb_shmem_t * accdb_shmem = fd_accdb_shmem_join( _accdb_shmem );
     737           0 :   FD_TEST( accdb_shmem );
     738           0 :   ctx->accdb = fd_accdb_join( fd_accdb_new( _accdb, accdb_shmem, FD_ACCDB_FD_RW, 0UL, NULL ) );
     739           0 :   FD_TEST( ctx->accdb );
     740             : 
     741           0 :   for( ulong i=0UL; i<FD_PACK_MAX_TXN_PER_BUNDLE; i++ ) {
     742           0 :     ctx->txn_in[ i ].bundle.prev_txn_cnt = i;
     743           0 :     for( ulong j=0UL; j<i; j++ ) ctx->txn_in[ i ].bundle.prev_txn_outs[ j ] = &ctx->txn_out[ j ];
     744           0 :   }
     745             : 
     746           0 :   ctx->runtime->accdb                    = ctx->accdb;
     747           0 :   ctx->runtime->progcache                = ctx->progcache;
     748           0 :   ctx->runtime->status_cache             = txncache;
     749           0 :   memset( &ctx->runtime->log, 0, sizeof(ctx->runtime->log) );
     750           0 :   ctx->runtime->log.log_collector        = ctx->log_collector;
     751           0 :   ctx->runtime->fuzz.enabled             = 0;
     752           0 :   ctx->runtime->fuzz.reclaim_accounts    = 0;
     753           0 :   ctx->runtime->accounts.executable_cnt  = 0UL;
     754           0 :   ctx->runtime->accounts.account_cnt     = 0UL;
     755             : 
     756           0 :   ulong banks_obj_id = fd_pod_queryf_ulong( topo->props, ULONG_MAX, "banks" );
     757           0 :   FD_TEST( banks_obj_id!=ULONG_MAX );
     758           0 :   ctx->banks = fd_banks_join( fd_topo_obj_laddr( topo, banks_obj_id ) );
     759           0 :   NONNULL( ctx->banks );
     760             : 
     761           0 :   ulong busy_obj_id = fd_pod_queryf_ulong( topo->props, ULONG_MAX, "execle_busy.%lu", tile->kind_id );
     762           0 :   FD_TEST( busy_obj_id!=ULONG_MAX );
     763           0 :   ctx->busy_fseq = fd_fseq_join( fd_topo_obj_laddr( topo, busy_obj_id ) );
     764           0 :   if( FD_UNLIKELY( !ctx->busy_fseq ) ) FD_LOG_ERR(( "execle tile %lu has no busy flag", tile->kind_id ));
     765             : 
     766           0 :   memset( &ctx->metrics,          0, sizeof( ctx->metrics )          );
     767           0 :   memset( &ctx->runtime->metrics, 0, sizeof( ctx->runtime->metrics ) );
     768             : 
     769           0 :   ctx->pack_in_mem = topo->workspaces[ topo->objs[ topo->links[ tile->in_link_id[ 0UL ] ].dcache_obj_id ].wksp_id ].wksp;
     770           0 :   ctx->pack_in_chunk0 = fd_dcache_compact_chunk0( ctx->pack_in_mem, topo->links[ tile->in_link_id[ 0UL ] ].dcache );
     771           0 :   ctx->pack_in_wmark  = fd_dcache_compact_wmark ( ctx->pack_in_mem, topo->links[ tile->in_link_id[ 0UL ] ].dcache, topo->links[ tile->in_link_id[ 0UL ] ].mtu );
     772             : 
     773           0 :   *ctx->out_poh = out1( topo, tile, "execle_poh" ); FD_TEST( ctx->out_poh->idx!=ULONG_MAX );
     774           0 :   *ctx->out_pack = out1( topo, tile, "execle_pack" );
     775             : 
     776           0 :   ctx->enable_rebates = ctx->out_pack->idx!=ULONG_MAX;
     777             : 
     778           0 :   ctx->ns_per_tick = 1.f / (float)fd_tempo_tick_per_ns( NULL );
     779             : 
     780           0 :   fd_sleep_until_replay_started( topo );
     781           0 : }
     782             : 
     783             : static ulong
     784             : populate_allowed_seccomp( fd_topo_t const *      topo,
     785             :                           fd_topo_tile_t const * tile,
     786             :                           ulong                  out_cnt,
     787           0 :                           struct sock_filter *   out ) {
     788           0 :   (void)topo;
     789           0 :   (void)tile;
     790             : 
     791           0 :   populate_sock_filter_policy_fd_execle_tile( out_cnt, out, (uint)fd_log_private_logfile_fd(), FD_ACCDB_FD_RW );
     792           0 :   return sock_filter_policy_fd_execle_tile_instr_cnt;
     793           0 : }
     794             : 
     795             : static ulong
     796             : populate_allowed_fds( fd_topo_t const *      topo,
     797             :                       fd_topo_tile_t const * tile,
     798             :                       ulong                  out_fds_cnt,
     799           0 :                       int *                  out_fds ) {
     800           0 :   (void)topo;
     801           0 :   (void)tile;
     802             : 
     803           0 :   if( FD_UNLIKELY( out_fds_cnt<3UL ) ) FD_LOG_ERR(( "out_fds_cnt %lu", out_fds_cnt ));
     804             : 
     805           0 :   ulong out_cnt = 0UL;
     806           0 :   out_fds[ out_cnt++ ] = 2; /* stderr */
     807           0 :   if( FD_LIKELY( -1!=fd_log_private_logfile_fd() ) )
     808           0 :     out_fds[ out_cnt++ ] = fd_log_private_logfile_fd(); /* logfile */
     809           0 :   out_fds[ out_cnt++ ] = FD_ACCDB_FD_RW; /* accounts db */
     810             : 
     811           0 :   return out_cnt;
     812           0 : }
     813             : 
     814             : /* For a bundle, one bundle might burst into at most 5 separate PoH mixins, since the
     815             :    microblocks cannot be conflicting. */
     816             : 
     817           0 : #define STEM_BURST (5UL)
     818             : 
     819             : /* See explanation in fd_pack */
     820           0 : #define STEM_LAZY  (128L*3000L)
     821             : 
     822           0 : #define STEM_CALLBACK_CONTEXT_TYPE  fd_execle_tile_t
     823           0 : #define STEM_CALLBACK_CONTEXT_ALIGN alignof(fd_execle_tile_t)
     824             : 
     825           0 : #define STEM_CALLBACK_METRICS_WRITE metrics_write
     826           0 : #define STEM_CALLBACK_BEFORE_FRAG   before_frag
     827           0 : #define STEM_CALLBACK_DURING_FRAG   during_frag
     828           0 : #define STEM_CALLBACK_AFTER_FRAG    after_frag
     829             : 
     830             : #include "../../disco/stem/fd_stem.c"
     831             : 
     832             : fd_topo_run_tile_t fd_tile_execle = {
     833             :   .name                     = "execle",
     834             :   .populate_allowed_seccomp = populate_allowed_seccomp,
     835             :   .populate_allowed_fds     = populate_allowed_fds,
     836             :   .scratch_align            = scratch_align,
     837             :   .scratch_footprint        = scratch_footprint,
     838             :   .unprivileged_init        = unprivileged_init,
     839             :   .run                      = stem_run,
     840             : };

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