Line data    Source code

       1             : #ifndef HEADER_fd_src_flamenco_runtime_sysvar_fd_sysvar_recent_hashes_h
       2             : #define HEADER_fd_src_flamenco_runtime_sysvar_fd_sysvar_recent_hashes_h
       3             : 
       4             : /* fd_sysvar_recent_hashes.h manages the "recent block hashes" sysvar
       5             :    account (address SysvarRecentB1ockHashes11111111111111111111).  */
       6             : 
       7             : #include "../../types/fd_types.h"
       8             : #include "../../fd_flamenco_base.h"
       9             : #include "../../accdb/fd_accdb_user.h"
      10             : #include "fd_sysvar_base.h"
      11             : 
      12             : /* FD_SYSVAR_RECENT_HASHES_CAP is the max number of block hash entries
      13             :    the recent blockhashes sysvar will include.
      14             : 
      15             :    https://github.com/anza-xyz/agave/blob/6398ddf6ab8a8f81017bf675ab315a70067f0bf0/sdk/program/src/sysvar/recent_blockhashes.rs#L32
      16             : */
      17             : 
      18       69309 : #define FD_SYSVAR_RECENT_HASHES_CAP (150UL)
      19             : 
      20             : FD_PROTOTYPES_BEGIN
      21             : 
      22             : /* The recent hashes sysvar */
      23             : 
      24             : /* Initialize the recent hashes sysvar account. */
      25             : void
      26             : fd_sysvar_recent_hashes_init( fd_bank_t *               bank,
      27             :                               fd_accdb_user_t *         accdb,
      28             :                               fd_funk_txn_xid_t const * xid,
      29             :                               fd_capture_ctx_t *        capture_ctx );
      30             : 
      31             : /* Update the recent hashes sysvar account. This should be called at the start of every slot, before execution commences. */
      32             : void
      33             : fd_sysvar_recent_hashes_update( fd_bank_t *               bank,
      34             :                                 fd_accdb_user_t *         accdb,
      35             :                                 fd_funk_txn_xid_t const * xid,
      36             :                                 fd_capture_ctx_t *        capture_ctx );
      37             : 
      38             : 
      39             : /* fd_sysvar_recent_hashes_read reads the recent hashes sysvar from funk.
      40             :    If the account doesn't exist in funk or if the account has zero
      41             :    lamports, this function returns NULL. */
      42             : 
      43             : fd_recent_block_hashes_t *
      44             : fd_sysvar_recent_hashes_read( fd_funk_t *               funk,
      45             :                               fd_funk_txn_xid_t const * xid,
      46             :                               uchar                     rbh_mem[ static FD_SYSVAR_RECENT_HASHES_FOOTPRINT ] );
      47             : 
      48             : FD_PROTOTYPES_END
      49             : 
      50             : #endif /* HEADER_fd_src_flamenco_runtime_sysvar_fd_sysvar_recent_hashes_h */