Line data    Source code

       1             : #ifndef HEADER_fd_src_flamenco_runtime_sysvar_fd_sysvar_instructions_h
       2             : #define HEADER_fd_src_flamenco_runtime_sysvar_fd_sysvar_instructions_h
       3             : 
       4             : #include "../../fd_flamenco_base.h"
       5             : #include "../../accdb/fd_accdb.h"
       6             : #include "../../../ballet/txn/fd_txn.h"
       7             : 
       8             : FD_PROTOTYPES_BEGIN
       9             : 
      10             : /* fd_sysvar_instructions_offsets_overflow returns 1 if serializing the
      11             :    instructions sysvar for the given txn would cause the offset to
      12             :    overflow. This is only possible for V1 transactions. This mirrors
      13             :    Agave's semantics.
      14             : 
      15             :    https://github.com/anza-xyz/solana-sdk/blob/instructions-sysvar@v4.0.0/instructions-sysvar/src/lib.rs#L97-L156 */
      16             : FD_FN_PURE static inline int
      17           9 : fd_sysvar_instructions_offsets_overflow( fd_txn_t const * txn ) {
      18           9 :   ulong off = sizeof(ushort) + (ulong)sizeof(ushort)*txn->instr_cnt;
      19          21 :   for( ushort i=0; i<txn->instr_cnt; i++ ) {
      20          18 :     if( FD_UNLIKELY( off>(ulong)USHORT_MAX ) ) return 1;
      21          12 :     off += sizeof(ushort)
      22          12 :          + (ulong)txn->instr[i].acct_cnt*( sizeof(uchar)+sizeof(fd_pubkey_t) )
      23          12 :          + sizeof(fd_pubkey_t) + sizeof(ushort) + txn->instr[i].data_sz;
      24          12 :   }
      25           3 :   return 0;
      26           9 : }
      27             : 
      28             : int
      29             : fd_sysvar_instructions_serialize_account( fd_txn_in_t const * txn_in,
      30             :                                           fd_txn_out_t *      txn_out,
      31             :                                           ulong               txn_idx );
      32             : 
      33             : void
      34             : fd_sysvar_instructions_update_current_instr_idx( fd_acc_t * acc,
      35             :                                                  ushort     current_instr_idx );
      36             : 
      37             : FD_PROTOTYPES_END
      38             : 
      39             : #endif /* HEADER_fd_src_flamenco_runtime_sysvar_fd_sysvar_instructions_h */