Line data    Source code

       1             : #ifndef HEADER_fd_src_flamenco_runtime_fd_borrowed_account_h
       2             : #define HEADER_fd_src_flamenco_runtime_fd_borrowed_account_h
       3             : 
       4             : #include "fd_executor_err.h"
       5             : #include "fd_system_ids.h"
       6             : #include "fd_runtime.h"
       7             : #include "context/fd_exec_epoch_ctx.h"
       8             : #include "context/fd_exec_txn_ctx.h"
       9             : #include "sysvar/fd_sysvar_rent.h"
      10             : 
      11             : /* FD_ACC_SZ_MAX is the hardcoded size limit of a Solana account. */
      12             : 
      13           0 : #define MAX_PERMITTED_DATA_LENGTH                 (10UL<<20) /* 10MiB */
      14             : #define MAX_PERMITTED_ACCOUNT_DATA_ALLOCS_PER_TXN (10L<<21 ) /* 20MiB */
      15             : 
      16             : /* TODO: Not all Agave Borrowed Account API functions are implemented here */
      17             : 
      18             : struct fd_borrowed_account {
      19             :   ulong                       magic;
      20             :   fd_txn_account_t *          acct;
      21             :   fd_exec_instr_ctx_t const * instr_ctx;
      22             :   int                         instr_acc_idx;
      23             : };
      24             : typedef struct fd_borrowed_account fd_borrowed_account_t;
      25             : 
      26           0 : #define FD_BORROWED_ACCOUNT_MAGIC (0xFDB07703ACC736C0UL) /* FD BORROW ACCT MGC version 0 */
      27             : /* prevents borrowed accounts from going out of scope without releasing a borrow */
      28           0 : #define fd_guarded_borrowed_account_t __attribute__((cleanup(fd_borrowed_account_destroy))) fd_borrowed_account_t
      29             : 
      30             : FD_PROTOTYPES_BEGIN
      31             : 
      32             : /* Constructor */
      33             : 
      34             : static inline void
      35             : fd_borrowed_account_init( fd_borrowed_account_t *     borrowed_acct,
      36             :                           fd_txn_account_t *          acct,
      37             :                           fd_exec_instr_ctx_t const * instr_ctx,
      38           0 :                           int                         instr_acc_idx ) {
      39           0 :   borrowed_acct->acct = acct;
      40           0 :   borrowed_acct->instr_ctx = instr_ctx;
      41           0 :   borrowed_acct->instr_acc_idx = instr_acc_idx;
      42             : 
      43           0 :   FD_COMPILER_MFENCE();
      44           0 :   borrowed_acct->magic = FD_BORROWED_ACCOUNT_MAGIC;
      45           0 :   FD_COMPILER_MFENCE();
      46           0 : }
      47             : 
      48             : /* Drop mirrors the behavior of rust's std::mem::drop on mutable borrows.
      49             :    Releases the acquired write on the borrowed account object. */
      50             : 
      51             : static inline void
      52           0 : fd_borrowed_account_drop( fd_borrowed_account_t * borrowed_acct ) {
      53           0 :   fd_txn_account_release_write_private( borrowed_acct->acct );
      54           0 : }
      55             : 
      56             : /* Destructor  */
      57             : 
      58             : static inline void
      59           0 : fd_borrowed_account_destroy( fd_borrowed_account_t * borrowed_acct ) {
      60           0 :   if( FD_LIKELY( borrowed_acct->magic == FD_BORROWED_ACCOUNT_MAGIC ) ) {
      61           0 :     fd_txn_account_release_write_private( borrowed_acct->acct );
      62           0 :   }
      63             : 
      64           0 :   FD_COMPILER_MFENCE();
      65           0 :   FD_VOLATILE( borrowed_acct->magic ) = 0UL;
      66           0 :   FD_COMPILER_MFENCE();
      67             : 
      68           0 :   borrowed_acct = NULL;
      69           0 : }
      70             : 
      71             : /* Getters */
      72             : 
      73             : /* fd_borrowed_account_get_data mirrors Agave function
      74             :    solana_sdk::transaction_context::BorrowedAccount::get_data.
      75             : 
      76             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L817 */
      77             : 
      78             : static inline void const *
      79           0 : fd_borrowed_account_get_data( fd_borrowed_account_t const * borrowed_acct ) {
      80           0 :   return borrowed_acct->acct->const_data;
      81           0 : }
      82             : 
      83             : /* fd_borrowed_account_get_data_mut mirrors Agave function
      84             :    solana_sdk::transaction_context::BorrowedAccount::get_data_mut.
      85             : 
      86             :    Returns a writable slice of the account data (transaction wide).
      87             :    Acquires a writable handle. This function assumes that the relevant
      88             :    borrowed has already acquired exclusive write access.
      89             : 
      90             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L823 */
      91             : 
      92             : int
      93             : fd_borrowed_account_get_data_mut( fd_borrowed_account_t * borrowed_acct,
      94             :                                   uchar * *               data_out,
      95             :                                   ulong *                 dlen_out );
      96             : 
      97             : static inline fd_pubkey_t const *
      98           0 : fd_borrowed_account_get_owner( fd_borrowed_account_t * borrowed_acct ) {
      99           0 :   return (fd_pubkey_t const *) borrowed_acct->acct->const_meta->info.owner;
     100           0 : }
     101             : 
     102             : /* fd_borrowed_account_get_lamports mirrors Agave function
     103             :    solana_sdk::transaction_context::BorrowedAccount::get_lamports.
     104             : 
     105             :    Returns current number of lamports in account.  Well behaved if meta
     106             :    is NULL.
     107             : 
     108             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L767 */
     109             : 
     110             : static inline ulong
     111           0 : fd_borrowed_account_get_lamports( fd_borrowed_account_t const * borrowed_acct ) {
     112           0 :   return fd_txn_account_get_lamports( borrowed_acct->acct );
     113           0 : }
     114             : 
     115             : /* fd_borrowed_account_get_rent_epoch mirrors Agave function
     116             :    solana_sdk::transaction_context::BorrowedAccount::get_rent_epoch.
     117             : 
     118             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1034 */
     119             : 
     120             : static inline ulong
     121           0 : fd_borrowed_account_get_rent_epoch( fd_borrowed_account_t const * borrowed_acct ) {
     122           0 :   FD_TEST( borrowed_acct->acct->const_meta != NULL );
     123           0 :   /* TODO: rent_epoch should be a property of fd_txn_account_t */
     124           0 :   return borrowed_acct->acct->const_meta->info.rent_epoch;
     125           0 : }
     126             : 
     127             : /* Setters */
     128             : 
     129             : /* fd_borrowed_account_set_owner mirrors Agave function
     130             :    solana_sdk::transaction_context::BorrowedAccount::set_owner.
     131             : 
     132             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L739 */
     133             : 
     134             : int
     135             : fd_borrowed_account_set_owner( fd_borrowed_account_t * borrowed_acct,
     136             :                                fd_pubkey_t const *     owner );
     137             : 
     138             : /* fd_borrowed_account_set_lamports mirrors Agave function
     139             :    solana_sdk::transaction_context::BorrowedAccount::set_lamports.
     140             : 
     141             :    Runs through a sequence of permission checks, then sets the account
     142             :    balance.  Does not update global capitalization.  On success, returns
     143             :    0 and updates meta->lamports.  On failure, returns an
     144             :    FD_EXECUTOR_INSTR_ERR_{...} code.  Acquires a writable handle.
     145             : 
     146             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L773 */
     147             : 
     148             : int
     149             : fd_borrowed_account_set_lamports( fd_borrowed_account_t * borrowed_acct,
     150             :                                   ulong                   lamports );
     151             : 
     152             : /* fd_borrowed_account_set_data_from_slice mirrors Agave function
     153             :    solana_sdk::transaction_context::BorrowedAccount::set_data_from_slice.
     154             : 
     155             :    In the firedancer client, it also mirrors the Agave function
     156             :    solana_sdk::transaction_context::BorrowedAccount::set_data.
     157             :    Assumes that destination account already has enough space to fit
     158             :    data.  Acquires a writable handle.
     159             : 
     160             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L864 */
     161             : 
     162             : int
     163             : fd_borrowed_account_set_data_from_slice( fd_borrowed_account_t * borrowed_acct,
     164             :                                          uchar const *           data,
     165             :                                          ulong                   data_sz );
     166             : 
     167             : /* fd_borrowed_account_set_data_length mirrors Agave function
     168             :    solana_sdk::transaction_context::BorrowedAccount::set_data_length.
     169             : 
     170             :    Acquires a writable handle. Returns 0 on success.
     171             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L882 */
     172             : 
     173             : int
     174             : fd_borrowed_account_set_data_length( fd_borrowed_account_t * borrowed_acct,
     175             :                                      ulong                   new_len );
     176             : 
     177             : /* fd_borrowed_account_set_executable mirrors Agave function
     178             :    solana_sdk::transaction_context::BorrowedAccount::set_executable.
     179             : 
     180             :    Returns FD_EXECUTOR_INSTR_SUCCESS if the set is successful.
     181             : 
     182             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L10015 */
     183             : 
     184             : int
     185             : fd_borrowed_account_set_executable( fd_borrowed_account_t * borrowed_acct,
     186             :                                     int                     is_executable );
     187             : 
     188             : /* Operators */
     189             : 
     190             : /* fd_borrowed_account_checked_add_lamports mirros Agave function
     191             :    solana_sdk::transaction_context::BorrowedAccount::checked_add_lamports.
     192             : 
     193             :    Does not update global capitalization. Returns 0 on
     194             :    success or an FD_EXECUTOR_INSTR_ERR_{...} code on failure.
     195             :    Gracefully handles underflow.
     196             : 
     197             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L797 */
     198             : 
     199             : static inline int
     200             : fd_borrowed_account_checked_add_lamports( fd_borrowed_account_t * borrowed_acct,
     201           0 :                                           ulong                   lamports ) {
     202           0 :   ulong balance_post = 0UL;
     203           0 :   int err = fd_ulong_checked_add( borrowed_acct->acct->const_meta->info.lamports,
     204           0 :                                   lamports,
     205           0 :                                   &balance_post );
     206           0 :   if( FD_UNLIKELY( err ) ) {
     207           0 :     return FD_EXECUTOR_INSTR_ERR_ARITHMETIC_OVERFLOW;
     208           0 :   }
     209             : 
     210           0 :   return fd_borrowed_account_set_lamports( borrowed_acct, balance_post );
     211           0 : }
     212             : 
     213             : /* fd_borrowed_account_checked_sub_lamports mirrors Agave function
     214             :    solana_sdk::transaction_context::BorrowedAccount::checked_sub_lamports.
     215             : 
     216             :    Does not update global capitalization. Returns 0 on
     217             :    success or an FD_EXECUTOR_INSTR_ERR_{...} code on failure.
     218             :    Gracefully handles underflow.
     219             : 
     220             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L807 */
     221             : 
     222             : static inline int
     223             : fd_borrowed_account_checked_sub_lamports( fd_borrowed_account_t * borrowed_acct,
     224           0 :                                           ulong                   lamports ) {
     225           0 :   ulong balance_post = 0UL;
     226           0 :   int err = fd_ulong_checked_sub( borrowed_acct->acct->const_meta->info.lamports,
     227           0 :                                   lamports,
     228           0 :                                   &balance_post );
     229           0 :   if( FD_UNLIKELY( err ) ) {
     230           0 :     return FD_EXECUTOR_INSTR_ERR_ARITHMETIC_OVERFLOW;
     231           0 :   }
     232             : 
     233           0 :   return fd_borrowed_account_set_lamports( borrowed_acct, balance_post );
     234           0 : }
     235             : 
     236             : /* fd_borrowed_account_update_acounts_resize_delta mirrors Agave function
     237             :    solana_sdk::transaction_context:BorrowedAccount::update_accounts_resize_delta.
     238             : 
     239             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1123 */
     240             : 
     241             : int
     242             : fd_borrowed_account_update_accounts_resize_delta( fd_borrowed_account_t * borrowed_acct,
     243             :                                                   ulong                         new_len,
     244             :                                                   int *                         err );
     245             : 
     246             : /* Accessors */
     247             : 
     248             : /* fd_borrowed_account_is_rent_exempt_at_data_length mirrors Agave function
     249             :    solana_sdk::transaction_context::BorrowedAccount::is_rent_exempt_at_data_length.
     250             : 
     251             :    Returns 1 if an account is rent exempt at it's current data length.
     252             : 
     253             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L987 */
     254             : 
     255             : static inline int
     256           0 : fd_borrowed_account_is_rent_exempt_at_data_length( fd_borrowed_account_t const * borrowed_acct ) {
     257           0 :   fd_txn_account_t * acct = borrowed_acct->acct;
     258           0 :   FD_TEST( acct->const_meta != NULL );
     259           0 : 
     260           0 :   /* TODO: Add an is_exempt rent API to better match Agave and clean up code
     261           0 :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L990 */
     262           0 :   fd_rent_t rent    = borrowed_acct->instr_ctx->txn_ctx->rent;
     263           0 :   ulong min_balance = fd_rent_exempt_minimum_balance( &rent, acct->const_meta->dlen );
     264           0 :   return acct->const_meta->info.lamports >= min_balance;
     265           0 : }
     266             : 
     267             : /* fd_borrowed_account_is_executable mirrors Agave function
     268             :    solana_sdk::transaction_context::BorrowedAccount::is_executable.
     269             : 
     270             :    Returns 1 if the given account has the
     271             :    executable flag set.  Otherwise, returns 0.
     272             : 
     273             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L995 */
     274             : 
     275             : FD_FN_PURE static inline int
     276           0 : fd_borrowed_account_is_executable( fd_borrowed_account_t const * borrowed_acct ) {
     277           0 :   return fd_txn_account_is_executable( borrowed_acct->acct );
     278           0 : }
     279             : 
     280             : /* fd_borrowed_account_is_executable_internal is a private function for deprecating the `is_executable` flag.
     281             :    It returns true if the `remove_accounts_executable_flag_checks` feature is inactive AND fd_account_is_executable
     282             :    return true. This is newly used in account modification logic to eventually allow "executable" accounts to be
     283             :    modified.
     284             : 
     285             :    https://github.com/anza-xyz/agave/blob/89872fdb074e6658646b2b57a299984f0059cc84/sdk/transaction-context/src/lib.rs#L1052-L1060 */
     286             : 
     287             : FD_FN_PURE static inline int
     288           0 : fd_borrowed_account_is_executable_internal( fd_borrowed_account_t const * borrowed_acct ) {
     289           0 :   return !FD_FEATURE_ACTIVE( borrowed_acct->instr_ctx->txn_ctx->slot, borrowed_acct->instr_ctx->txn_ctx->features, remove_accounts_executable_flag_checks ) &&
     290           0 :           fd_borrowed_account_is_executable( borrowed_acct );
     291           0 : }
     292             : 
     293             : /* fd_borrowed_account_is_signer mirror the Agave functions
     294             :    solana_sdk::transaction_context::BorrowedAccount::is_signer.
     295             :    Returns 1 if the account is a signer or is writable and 0 otherwise.
     296             : 
     297             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1039 */
     298             : 
     299             : static inline int
     300           0 : fd_borrowed_account_is_signer( fd_borrowed_account_t const * borrowed_acct ) {
     301           0 :   fd_exec_instr_ctx_t const * instr_ctx = borrowed_acct->instr_ctx;
     302           0 :   if( FD_UNLIKELY( borrowed_acct->instr_acc_idx >= instr_ctx->instr->acct_cnt ) ) {
     303           0 :     return 0;
     304           0 :   }
     305             : 
     306           0 :   fd_instr_info_t const * instr = instr_ctx->instr;
     307           0 :   return fd_instr_acc_is_signer_idx( instr, (ulong)borrowed_acct->instr_acc_idx );
     308           0 : }
     309             : 
     310             : /* fd_borrowed_account_is_writer mirror the Agave functions
     311             :    solana_sdk::transaction_context::BorrowedAccount::is_writer.
     312             :    Returns 1 if the account is a signer or is writable and 0 otherwise.
     313             : 
     314             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1052 */
     315             : 
     316             : static inline int
     317           0 : fd_borrowed_account_is_writable( fd_borrowed_account_t const * borrowed_acct ) {
     318           0 :   fd_exec_instr_ctx_t const * instr_ctx = borrowed_acct->instr_ctx;
     319           0 :   if( FD_UNLIKELY( borrowed_acct->instr_acc_idx >= instr_ctx->instr->acct_cnt ) ) {
     320           0 :     return 0;
     321           0 :   }
     322             : 
     323           0 :   fd_instr_info_t const * instr = instr_ctx->instr;
     324           0 :   return fd_instr_acc_is_writable_idx( instr, (ulong)borrowed_acct->instr_acc_idx );
     325           0 : }
     326             : 
     327             : /* fd_borrowed_account_is_owned_by_current_program mirrors Agave's
     328             :    solana_sdk::transaction_context::BorrowedAccount::is_owned_by_current_program.
     329             : 
     330             :    Returns 1 if the given
     331             :    account is owned by the program invoked in the current instruction.
     332             :    Otherwise, returns 0.
     333             : 
     334             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1065 */
     335             : 
     336             : FD_FN_PURE static inline int
     337           0 : fd_borrowed_account_is_owned_by_current_program( fd_borrowed_account_t const * borrowed_acct ) {
     338           0 :   return memcmp( borrowed_acct->instr_ctx->instr->program_id_pubkey.key,
     339           0 :                  borrowed_acct->acct->const_meta->info.owner, sizeof(fd_pubkey_t) ) == 0;
     340           0 : }
     341             : 
     342             : /* fd_borrowed_account_can_data_be changed mirrors Agave function
     343             :    solana_sdk::transaction_context::BorrowedAccount::can_data_be_changed.
     344             : 
     345             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1074 */
     346             : 
     347             : static inline int
     348             : fd_borrowed_account_can_data_be_changed( fd_borrowed_account_t const * borrowed_acct,
     349           0 :                                          int *                       err ) {
     350           0 :   fd_instr_info_t const * instr = borrowed_acct->instr_ctx->instr;
     351           0 :   FD_TEST( borrowed_acct->instr_acc_idx < instr->acct_cnt );
     352             : 
     353             :   /* Only non-executable accounts data can be changed
     354             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1076 */
     355           0 :   if( FD_UNLIKELY( fd_borrowed_account_is_executable_internal( borrowed_acct ) ) ) {
     356           0 :     *err = FD_EXECUTOR_INSTR_ERR_EXECUTABLE_DATA_MODIFIED;
     357           0 :     return 0;
     358           0 :   }
     359             : 
     360             :   /* And only if the account is writable
     361             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1080 */
     362           0 :   if( FD_UNLIKELY( !fd_borrowed_account_is_writable( borrowed_acct ) ) ) {
     363           0 :     *err = FD_EXECUTOR_INSTR_ERR_READONLY_DATA_MODIFIED;
     364           0 :     return 0;
     365           0 :   }
     366             : 
     367             :   /* And only if we are the owner
     368             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1084 */
     369           0 :   if( FD_UNLIKELY( !fd_borrowed_account_is_owned_by_current_program( borrowed_acct ) ) ) {
     370           0 :     *err = FD_EXECUTOR_INSTR_ERR_EXTERNAL_DATA_MODIFIED;
     371           0 :     return 0;
     372           0 :   }
     373             : 
     374           0 :   *err = FD_EXECUTOR_INSTR_SUCCESS;
     375           0 :   return 1;
     376           0 : }
     377             : 
     378             : /* fd_borrowed_account_can_data_be_resized mirrors Agave function
     379             :    solana_sdk::transaction_context::BorrowedAccount::can_data_be_resized
     380             : 
     381             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1092 */
     382             : 
     383             : static inline int
     384             : fd_borrowed_account_can_data_be_resized( fd_borrowed_account_t const * borrowed_acct,
     385             :                                          ulong                         new_length,
     386           0 :                                          int *                         err ) {
     387           0 :   fd_txn_account_t * acct = borrowed_acct->acct;
     388             : 
     389             :   /* Only the owner can change the length of the data
     390             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1095 */
     391           0 :   if( FD_UNLIKELY( ( acct->const_meta->dlen != new_length ) &
     392           0 :                    ( !fd_borrowed_account_is_owned_by_current_program( borrowed_acct ) ) ) ) {
     393           0 :     *err = FD_EXECUTOR_INSTR_ERR_ACC_DATA_SIZE_CHANGED;
     394           0 :     return 0;
     395           0 :   }
     396             : 
     397             :   /* The new length can not exceed the maximum permitted length
     398             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1099 */
     399           0 :   if( FD_UNLIKELY( new_length>MAX_PERMITTED_DATA_LENGTH ) ) {
     400           0 :     *err = FD_EXECUTOR_INSTR_ERR_INVALID_REALLOC;
     401           0 :     return 0;
     402           0 :   }
     403             : 
     404             :   /* The resize can not exceed the per-transaction maximum
     405             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1104-L1108 */
     406           0 :   long length_delta = fd_long_sat_sub( (long)new_length, (long)acct->const_meta->dlen );
     407           0 :   long new_accounts_resize_delta = fd_long_sat_add( (long)borrowed_acct->instr_ctx->txn_ctx->accounts_resize_delta, length_delta );
     408           0 :   if( FD_UNLIKELY( new_accounts_resize_delta > MAX_PERMITTED_ACCOUNT_DATA_ALLOCS_PER_TXN ) ) {
     409           0 :     *err = FD_EXECUTOR_INSTR_ERR_MAX_ACCS_DATA_ALLOCS_EXCEEDED;
     410           0 :     return 0;
     411           0 :   }
     412             : 
     413           0 :   *err = FD_EXECUTOR_INSTR_SUCCESS;
     414           0 :   return 1;
     415           0 : }
     416             : 
     417             : FD_FN_PURE static inline int
     418           0 : fd_borrowed_account_is_zeroed( fd_borrowed_account_t const * borrowed_acct ) {
     419           0 :   fd_txn_account_t * acct = borrowed_acct->acct;
     420             :   /* TODO: optimize this */
     421           0 :   uchar const * data = ((uchar *) acct->const_meta) + acct->const_meta->hlen;
     422           0 :   for( ulong i=0UL; i < acct->const_meta->dlen; i++ )
     423           0 :     if( data[i] != 0 )
     424           0 :       return 0;
     425           0 :   return 1;
     426           0 : }
     427             : 
     428             : FD_PROTOTYPES_END
     429             : 
     430             : #endif /* HEADER_fd_src_flamenco_runtime_fd_borrowed_account_h */