diff options
Diffstat (limited to 'src/exchangedb/pg_start_read_committed.c')
-rw-r--r-- | src/exchangedb/pg_start_read_committed.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/exchangedb/pg_start_read_committed.c b/src/exchangedb/pg_start_read_committed.c new file mode 100644 index 000000000..ec207f0ce --- /dev/null +++ b/src/exchangedb/pg_start_read_committed.c @@ -0,0 +1,56 @@ +/* + This file is part of TALER + Copyright (C) 2022 Taler Systems SA + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 3, or (at your option) any later version. + + TALER is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + A PARTICULAR PURPOSE. See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ +/** + * @file exchangedb/pg_start_read_commited.c + * @brief Implementation of the start_read_commited function for Postgres + * @author Christian Grothoff + */ +#include "platform.h" +#include "taler_error_codes.h" +#include "taler_dbevents.h" +#include "taler_pq_lib.h" +#include "pg_start_read_committed.h" +#include "pg_preflight.h" +#include "pg_helper.h" + +enum GNUNET_GenericReturnValue +TEH_PG_start_read_committed (void *cls, + const char *name) +{ + struct PostgresClosure *pg = cls; + struct GNUNET_PQ_ExecuteStatement es[] = { + GNUNET_PQ_make_execute ("START TRANSACTION ISOLATION LEVEL READ COMMITTED"), + GNUNET_PQ_EXECUTE_STATEMENT_END + }; + + GNUNET_assert (NULL != name); + if (GNUNET_SYSERR == + TEH_PG_preflight (pg)) + return GNUNET_SYSERR; + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "Starting READ COMMITTED transaction `%s`\n", + name); + if (GNUNET_OK != + GNUNET_PQ_exec_statements (pg->conn, + es)) + { + TALER_LOG_ERROR ("Failed to start transaction\n"); + GNUNET_break (0); + return GNUNET_SYSERR; + } + pg->transaction_name = name; + return GNUNET_OK; +} |