LCOV - code coverage report
Current view: top level - disco - tiles.h (source / functions) Hit Total Coverage
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Date: 2026-03-19 18:19:27 Functions: 0 0 -

          Line data    Source code
       1             : #ifndef HEADER_fd_src_disco_tiles_h
       2             : #define HEADER_fd_src_disco_tiles_h
       3             : 
       4             : #include "stem/fd_stem.h"
       5             : #include "shred/fd_shredder.h"
       6             : #include "../ballet/shred/fd_shred.h"
       7             : #include "../flamenco/leaders/fd_leaders_base.h"
       8             : #include "pack/fd_pack.h"
       9             : #include "topo/fd_topo.h"
      10             : #include "bundle/fd_bundle_crank.h"
      11             : #include "../disco/metrics/generated/fd_metrics_pack.h"
      12             : 
      13             : #include <linux/filter.h>
      14             : 
      15             : struct fd_became_leader {
      16             :    ulong slot;
      17             : 
      18             :   /* Start and end time of the slot in nanoseconds (from
      19             :      fd_log_wallclock()). */
      20             :   long   slot_start_ns;
      21             :   long   slot_end_ns;
      22             : 
      23             :   /* An opaque pointer to a Rust Arc<Bank> object, which should only
      24             :      be used with fd_ext_* functions to execute transactions or drop
      25             :      the bank.  The ownership is complicated, but basically any bank
      26             :      tile that receives this frag has a strong refcnt to the bank and
      27             :      should release it when done, other tiles should ignore and never
      28             :      use the bank. */
      29             :   void const * bank;
      30             : 
      31             :   /* In Firedancer, we just pass around the bank_idx which has already
      32             :      been refcounted by the replay tile, rather than a bank pointer. */
      33             :   ulong bank_idx;
      34             : 
      35             :   /* The maximum number of microblocks that pack is allowed to put
      36             :      into the block. This allows PoH to accurately track and make sure
      37             :      microblocks do not need to be dropped. */
      38             :   ulong max_microblocks_in_slot;
      39             : 
      40             :   /* The number of ticks (effectively empty microblocks) that the PoH
      41             :      tile will put in the block.  This is used to adjust some pack
      42             :      limits. */
      43             :   ulong ticks_per_slot;
      44             : 
      45             :   ulong tick_duration_ns;
      46             : 
      47             :   /* The number of ticks that the PoH tile has skipped, but needs to
      48             :      publish to show peers they were skipped correctly.  This is used
      49             :      to adjust some pack limits. */
      50             :   ulong total_skipped_ticks;
      51             : 
      52             :   /* The number of hashes per tick.  This is used to update the
      53             :      parameter for the proof of history component in case it has
      54             :      changed. */
      55             :   ulong hashcnt_per_tick;
      56             : 
      57             :   /* The epoch of the slot for which we are becoming leader. */
      58             :   ulong epoch;
      59             : 
      60             :   /* Consensus-critical cost limits for the slot we are becoming leader.
      61             :      These are typically unchanging, but may change after a feature
      62             :      activation. */
      63             :   struct {
      64             :     ulong slot_max_cost;
      65             :     ulong slot_max_vote_cost;
      66             :     ulong slot_max_write_cost_per_acct;
      67             :   } limits;
      68             : 
      69             :   /* Information from the accounts database as of the start of the slot
      70             :      determined by the bank above that is necessary to crank the bundle
      71             :      tip programs properly.  If bundles are not enabled (determined
      72             :      externally, but the relevant tiles should know), these fields are
      73             :      set to 0. */
      74             :   struct {
      75             :     fd_bundle_crank_tip_payment_config_t config[1];
      76             :     uchar                                tip_receiver_owner[32];
      77             :     uchar                                last_blockhash[32];
      78             :   } bundle[1];
      79             : };
      80             : typedef struct fd_became_leader fd_became_leader_t;
      81             : 
      82             : struct fd_rooted_bank {
      83             :   void * bank;
      84             :   ulong  slot;
      85             : };
      86             : 
      87             : typedef struct fd_rooted_bank fd_rooted_bank_t;
      88             : 
      89             : struct fd_completed_bank {
      90             :    ulong slot;
      91             :    uchar hash[32];
      92             : };
      93             : 
      94             : typedef struct fd_completed_bank fd_completed_bank_t;
      95             : 
      96             : struct fd_microblock_trailer {
      97             :   /* The hash of the transactions in the microblock, ready to be
      98             :      mixed into PoH. */
      99             :   uchar hash[ 32UL ];
     100             : 
     101             :    /* A sequentially increasing index of the first transaction in the
     102             :      microblock, across all slots ever processed by pack.  This is used
     103             :      by monitoring tools that maintain an ordered history of
     104             :      transactions. */
     105             :   ulong pack_txn_idx;
     106             : 
     107             :   /* The tips included in the transaction, in lamports. 0 for non-bundle
     108             :      transactions */
     109             :   ulong tips;
     110             : 
     111             :   /* If the duration of a microblock is the difference between the
     112             :      publish timestamp of the microblock from pack and the publish
     113             :      timestamp of the microblock from execle, then these represent the
     114             :      elapsed time between the start of the microblock and the 3 state
     115             :      transitions (ready->start loading, loading -> execute, execute ->
     116             :      done) for the first transaction.
     117             : 
     118             :      For example, if a microblock starts at t=10 and ends at t=20, and
     119             :      txn_exec_end_pct is UCHAR_MAX / 2, then this transaction started
     120             :      executing at roughly 10+(20-10)*(128/UCHAR_MAX)=15 */
     121             :   uchar txn_start_pct;
     122             :   uchar txn_load_end_pct;
     123             :   uchar txn_end_pct;
     124             :   uchar txn_preload_end_pct;
     125             : };
     126             : typedef struct fd_microblock_trailer fd_microblock_trailer_t;
     127             : 
     128           0 : #define FD_PACK_END_SLOT_REASON_TIME          (1)
     129           0 : #define FD_PACK_END_SLOT_REASON_MICROBLOCK    (2)
     130           0 : #define FD_PACK_END_SLOT_REASON_LEADER_SWITCH (3)
     131             : 
     132             : struct fd_done_packing {
     133             :   ulong microblocks_in_slot;
     134             : 
     135             :   fd_pack_limits_usage_t limits_usage[ 1 ];
     136             :   fd_pack_limits_t limits[ 1 ];
     137             : 
     138             :   ulong block_results    [ FD_METRICS_COUNTER_PACK_TRANSACTION_SCHEDULE_CNT ];
     139             :   ulong end_block_results[ FD_METRICS_COUNTER_PACK_TRANSACTION_SCHEDULE_CNT ];
     140             : 
     141             :   fd_pack_smallest_t pending_smallest[ 1 ];
     142             :   fd_pack_smallest_t pending_votes_smallest[ 1 ];
     143             : 
     144             :   int end_slot_reason;
     145             : };
     146             : typedef struct fd_done_packing fd_done_packing_t;
     147             : 
     148             : struct fd_microblock_execle_trailer {
     149             :   /* An opaque pointer to the bank to use when executing and committing
     150             :      transactions.  The lifetime of the bank is owned by the PoH tile,
     151             :      which guarantees it is valid while pack or bank tiles might be
     152             :      using it. */
     153             :   void const * bank;
     154             : 
     155             :   /* In full Firedancer we just pass an index of the bank in a pool of
     156             :      banks.  The lifetime is fully managed by the replay tile, which has
     157             :      given us a refcount while we are leader for this bank.  bank value
     158             :      above will be NULL. */
     159             :   ulong bank_idx;
     160             : 
     161             :   /* The sequentially increasing index of the microblock, across all
     162             :      execles.  This is used by PoH to ensure microblocks get committed
     163             :      in the same order they are executed. */
     164             :   ulong microblock_idx;
     165             :   uint  pack_idx;
     166             : 
     167             :   /* A sequentially increasing index of the first transaction in the
     168             :      microblock, across all slots ever processed by pack.  This is used
     169             :      by monitoring tools that maintain an ordered history of
     170             :      transactions. */
     171             :   ulong pack_txn_idx;
     172             : 
     173             :   /* If the microblock is a bundle, with a set of potentially
     174             :      conflicting transactions that should be executed in order, and
     175             :      all either commit or fail atomically. */
     176             :   int is_bundle;
     177             : };
     178             : typedef struct fd_microblock_execle_trailer fd_microblock_execle_trailer_t;
     179             : 
     180             : typedef struct __attribute__((packed)) {
     181             :   ulong  tick_duration_ns;
     182             :   ulong  hashcnt_per_tick;
     183             :   ulong  ticks_per_slot;
     184             :   ulong  tick_height;
     185             :   uchar  last_entry_hash[32];
     186             : } fd_poh_init_msg_t;
     187             : 
     188             : #endif /* HEADER_fd_src_disco_tiles_h */

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