Line data    Source code

       1             : #include "fd_runtime_init.h"
       2             : #include "fd_acc_mgr.h"
       3             : #include "fd_bank.h"
       4             : #include "../types/fd_types.h"
       5             : #include "fd_system_ids.h"
       6             : 
       7             : /* fd_feature_restore loads a feature from the accounts database and
       8             :    updates the bank's feature activation state, given a feature account
       9             :    address. */
      10             : 
      11             : static void
      12             : fd_feature_restore( fd_bank_t *               bank,
      13             :                     fd_funk_t *               funk,
      14             :                     fd_funk_txn_xid_t const * xid,
      15             :                     fd_feature_id_t const *   id,
      16           0 :                     fd_pubkey_t const *       addr ) {
      17             : 
      18           0 :   fd_features_t * features = fd_bank_features_modify( bank );
      19             : 
      20             :   /* Skip reverted features */
      21           0 :   if( FD_UNLIKELY( id->reverted ) ) return;
      22             : 
      23           0 :   FD_TXN_ACCOUNT_DECL( acct_rec );
      24           0 :   int err = fd_txn_account_init_from_funk_readonly( acct_rec,
      25           0 :                                                     addr,
      26           0 :                                                     funk,
      27           0 :                                                     xid );
      28           0 :   if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS ) ) {
      29           0 :     return;
      30           0 :   }
      31             : 
      32             :   /* Skip accounts that are not owned by the feature program
      33             :      https://github.com/anza-xyz/solana-sdk/blob/6512aca61167088ce10f2b545c35c9bcb1400e70/feature-gate-interface/src/lib.rs#L42-L44 */
      34           0 :   if( FD_UNLIKELY( memcmp( fd_txn_account_get_owner( acct_rec ), fd_solana_feature_program_id.key, sizeof(fd_pubkey_t) ) ) ) {
      35           0 :     return;
      36           0 :   }
      37             : 
      38             :   /* Account data size must be >= FD_FEATURE_SIZEOF (9 bytes)
      39             :      https://github.com/anza-xyz/solana-sdk/blob/6512aca61167088ce10f2b545c35c9bcb1400e70/feature-gate-interface/src/lib.rs#L45-L47 */
      40           0 :   if( FD_UNLIKELY( fd_txn_account_get_data_len( acct_rec )<FD_FEATURE_SIZEOF ) ) {
      41           0 :     return;
      42           0 :   }
      43             : 
      44             :   /* Deserialize the feature account data
      45             :      https://github.com/anza-xyz/solana-sdk/blob/6512aca61167088ce10f2b545c35c9bcb1400e70/feature-gate-interface/src/lib.rs#L48-L50 */
      46           0 :   fd_feature_t feature[1];
      47           0 :   if( FD_UNLIKELY( !fd_bincode_decode_static(
      48           0 :       feature, feature,
      49           0 :       fd_txn_account_get_data( acct_rec ),
      50           0 :       fd_txn_account_get_data_len( acct_rec ),
      51           0 :       NULL ) ) ) {
      52           0 :     return;
      53           0 :   }
      54             : 
      55           0 :   FD_BASE58_ENCODE_32_BYTES( addr->uc, addr_b58 );
      56           0 :   if( feature->has_activated_at ) {
      57           0 :     FD_LOG_DEBUG(( "Feature %s activated at %lu", addr_b58, feature->activated_at ));
      58           0 :     fd_features_set( features, id, feature->activated_at );
      59           0 :   } else {
      60           0 :     FD_LOG_DEBUG(( "Feature %s not activated at %lu", addr_b58, feature->activated_at ));
      61           0 :   }
      62           0 : }
      63             : 
      64             : void
      65             : fd_features_restore( fd_bank_t *               bank,
      66             :                      fd_funk_t *               funk,
      67           0 :                      fd_funk_txn_xid_t const * xid ) {
      68             : 
      69           0 :   for( fd_feature_id_t const * id = fd_feature_iter_init();
      70           0 :                                    !fd_feature_iter_done( id );
      71           0 :                                id = fd_feature_iter_next( id ) ) {
      72           0 :     fd_feature_restore( bank, funk, xid, id, &id->id );
      73           0 :   }
      74           0 : }