diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/exchangedb/plugin_exchangedb_postgres.c | 518 | ||||
| -rw-r--r-- | src/exchangedb/test_exchangedb.c | 2 | ||||
| -rw-r--r-- | src/include/taler_exchangedb_plugin.h | 29 |
3 files changed, 285 insertions, 264 deletions
diff --git a/src/exchangedb/plugin_exchangedb_postgres.c b/src/exchangedb/plugin_exchangedb_postgres.c index 9c253f27a..1d5ba48f2 100644 --- a/src/exchangedb/plugin_exchangedb_postgres.c +++ b/src/exchangedb/plugin_exchangedb_postgres.c @@ -31,20 +31,31 @@ #include "plugin_exchangedb_common.c" /** + * Error code returned by Postgres for deadlock. + */ +#define PQ_DIAG_SQLSTATE_DEADLOCK "40P01" + +/** + * Error code returned by Postgres on serialization failure. + */ +#define PQ_DIAG_SQLSTATE_SERIALIZATION_FAILURE "40001" + + +/** * Log a query error. * * @param result PQ result object of the query that failed * @param conn SQL connection that was used */ #define QUERY_ERR(result,conn) \ - GNUNET_log (GNUNET_ERROR_TYPE_ERROR, \ + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, \ "Query failed at %s:%u: %s/%s/%s/%s/%s\n", \ __FILE__, __LINE__, \ PQresultErrorField (result, PG_DIAG_MESSAGE_PRIMARY), \ PQresultErrorField (result, PG_DIAG_MESSAGE_DETAIL), \ PQresultErrorMessage (result), \ PQresStatus (PQresultStatus (result)), \ - PQerrorMessage(conn)); + PQerrorMessage (conn)); /** @@ -61,7 +72,7 @@ PQresultErrorField (result, PG_DIAG_MESSAGE_DETAIL), \ PQresultErrorMessage (result), \ PQresStatus (PQresultStatus (result)), \ - PQerrorMessage(conn)); \ + PQerrorMessage (conn)); \ } while (0) @@ -111,6 +122,7 @@ } while (0) + /** * Handle for a database session (per-thread, for transactions). */ @@ -120,6 +132,25 @@ struct TALER_EXCHANGEDB_Session * Postgres connection handle. */ PGconn *conn; + + /** + * Transaction state. Set to #GNUNET_OK by #postgres_start(). + * Set to #GNUNET_NO if any part of the transaction failed in a + * transient way (i.e. #PG_DIAG_SQLSTATE_DEADLOCK or + * #PG_DIAG_SQLSTATE_SERIALIZATION_FAILURE). Set to + * #GNUNET_SYSERR if any part of the transaction failed in a + * hard way or if we are not within a transaction scope. + * + * If #GNUNET_NO, #postgres_commit() will always just do a + * rollback and return #GNUNET_NO as well (to retry). + * + * If #GNUNET_SYSERR, #postgres_commit() will always just do a + * rollback and return #GNUNET_SYSERR as well. + * + * If #GNUNET_OK, #postgres_commit() will try to commit and + * return the result from the commit operation. + */ + int state; }; @@ -1700,6 +1731,7 @@ postgres_get_session (void *cls) return NULL; } session = GNUNET_new (struct TALER_EXCHANGEDB_Session); + session->state = GNUNET_SYSERR; session->conn = db_conn; if (0 != pthread_setspecific (pc->db_conn_threadlocal, session)) @@ -1737,10 +1769,11 @@ postgres_start (void *cls, PQerrorMessage (session->conn)); GNUNET_break (0); PQclear (result); + session->state = GNUNET_SYSERR; return GNUNET_SYSERR; } - PQclear (result); + session->state = GNUNET_OK; return GNUNET_OK; } @@ -1763,24 +1796,24 @@ postgres_rollback (void *cls, GNUNET_break (PGRES_COMMAND_OK == PQresultStatus (result)); PQclear (result); + session->state = GNUNET_SYSERR; } /** - * Commit the current transaction of a database connection. + * Check the @a result's error code to see what happened. + * Also logs errors. * - * @param cls the `struct PostgresClosure` with the plugin-specific state - * @param session the database connection - * @return #GNUNET_OK on success + * @param session session used + * @param result result to check + * @return #GNUNET_OK if the request/transaction succeeded + * #GNUNET_NO if it failed but could succeed if retried + * #GNUNET_SYSERR on hard errors */ static int -postgres_commit (void *cls, - struct TALER_EXCHANGEDB_Session *session) +evaluate_pq_result (struct TALER_EXCHANGEDB_Session *session, + PGresult *result) { - PGresult *result; - - result = PQexec (session->conn, - "COMMIT"); if (PGRES_COMMAND_OK != PQresultStatus (result)) { @@ -1792,32 +1825,141 @@ postgres_commit (void *cls, { /* very unexpected... */ GNUNET_break (0); - PQclear (result); return GNUNET_SYSERR; } - /* 40P01: deadlock, 40001: serialization failure */ if ( (0 == strcmp (sqlstate, - "40P01")) || + PQ_DIAG_SQLSTATE_DEADLOCK)) || (0 == strcmp (sqlstate, - "40001")) ) + PQ_DIAG_SQLSTATE_SERIALIZATION_FAILURE)) ) { /* These two can be retried and have a fair chance of working the next time */ - PQclear (result); + QUERY_ERR (result, session->conn); return GNUNET_NO; } - GNUNET_log (GNUNET_ERROR_TYPE_ERROR, - "Database commit failure: %s\n", - sqlstate); - PQclear (result); + BREAK_DB_ERR(result, session->conn); return GNUNET_SYSERR; } - PQclear (result); return GNUNET_OK; } /** + * Commit the current transaction of a database connection. + * + * @param cls the `struct PostgresClosure` with the plugin-specific state + * @param session the database connection + * @return #GNUNET_SYSERR on hard error, + * #GNUNET_NO if commit failed but retry may work, + * #GNUNET_OK on success + */ +static int +postgres_commit (void *cls, + struct TALER_EXCHANGEDB_Session *session) +{ + PGresult *result; + int ret; + int state; + + state = session->state; + if (GNUNET_OK != state) + { + postgres_rollback (cls, + session); + return state; + } + result = PQexec (session->conn, + "COMMIT"); + ret = evaluate_pq_result (session, + result); + GNUNET_break (GNUNET_SYSERR != ret); + PQclear (result); + return ret; +} + + +/** + * Update the @a session state based on the latest @a result from + * the database. Checks the status code of @a result and possibly + * sets the state to failed (#GNUNET_SYSERR) or transiently failed + * (#GNUNET_NO). + * + * @param session the session in which the transaction is running + * @param statement name of the statement we were executing (for logging) + * @param result the result we got from Postgres + * @return current session state, i.e. + * #GNUNET_OK on success + * #GNUNET_NO if the transaction had a transient failure + * #GNUNET_SYSERR if the transaction had a hard failure + */ +static int +update_session_from_result (struct TALER_EXCHANGEDB_Session *session, + const char *statement, + PGresult *result) +{ + int ret; + + if (GNUNET_OK != session->state) + { + GNUNET_break (0); + return GNUNET_SYSERR; /* we already failed, why do we keep going? */ + } + ret = evaluate_pq_result (session, + result); + if (GNUNET_OK == ret) + return ret; + GNUNET_log ((GNUNET_NO == ret) + ? GNUNET_ERROR_TYPE_INFO + : GNUNET_ERROR_TYPE_ERROR, + "Statement `%s' failed: %s/%s/%s/%s/%s", + statement, + PQresultErrorField (result, PG_DIAG_MESSAGE_PRIMARY), + PQresultErrorField (result, PG_DIAG_MESSAGE_DETAIL), + PQresultErrorMessage (result), + PQresStatus (PQresultStatus (result)), + PQerrorMessage (session->conn)); + session->state = ret; + return ret; +} + + +/** + * Execute a named prepared @a statement that is NOT a SELECT statement + * in @a session using the given @a params. Returns the resulting session + * state. + * + * @param session session to execute the statement in + * @param statement name of the statement + * @param params parameters to give to the statement (#GNUNET_PQ_query_param_end-terminated) + * @return #GNUNET_OK on success + * #GNUNET_NO if the transaction had a transient failure + * #GNUNET_SYSERR if the transaction had a hard failure + */ +static int +execute_prepared_non_select (struct TALER_EXCHANGEDB_Session *session, + const char *statement, + const struct GNUNET_PQ_QueryParam *params) +{ + PGresult *result; + int ret; + + if (GNUNET_OK != session->state) + { + GNUNET_break (0); + return GNUNET_SYSERR; /* we already failed, why keep going? */ + } + result = GNUNET_PQ_exec_prepared (session->conn, + statement, + params); + ret = update_session_from_result (session, + statement, + result); + PQclear (result); + return ret; +} + + +/** * Insert a denomination key's public information into the database for * reference by auditors and other consistency checks. * @@ -1833,8 +1975,6 @@ postgres_insert_denomination_info (void *cls, const struct TALER_DenominationPublicKey *denom_pub, const struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue) { - PGresult *result; - int ret; struct GNUNET_PQ_QueryParam params[] = { GNUNET_PQ_query_param_auto_from_type (&issue->properties.denom_hash), GNUNET_PQ_query_param_rsa_public_key (denom_pub->rsa_public_key), @@ -1866,20 +2006,9 @@ postgres_insert_denomination_info (void *cls, TALER_amount_cmp_currency_nbo (&issue->properties.value, &issue->properties.fee_refund)); - result = GNUNET_PQ_exec_prepared (session->conn, - "denomination_insert", - params); - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - ret = GNUNET_SYSERR; - BREAK_DB_ERR (result, session->conn); - } - else - { - ret = GNUNET_OK; - } - PQclear (result); - return ret; + return execute_prepared_non_select (session, + "denomination_insert", + params); } @@ -1905,11 +2034,12 @@ postgres_get_denomination_info (void *cls, }; result = GNUNET_PQ_exec_prepared (session->conn, - "denomination_get", - params); + "denomination_get", + params); if (PGRES_TUPLES_OK != PQresultStatus (result)) { - QUERY_ERR (result, session->conn); + QUERY_ERR (result, + session->conn); PQclear (result); return GNUNET_SYSERR; } @@ -2046,8 +2176,6 @@ reserves_update (void *cls, struct TALER_EXCHANGEDB_Session *session, const struct TALER_EXCHANGEDB_Reserve *reserve) { - PGresult *result; - int ret; struct GNUNET_PQ_QueryParam params[] = { GNUNET_PQ_query_param_absolute_time (&reserve->expiry), TALER_PQ_query_param_amount (&reserve->balance), @@ -2055,22 +2183,9 @@ reserves_update (void *cls, GNUNET_PQ_query_param_end }; - result = GNUNET_PQ_exec_prepared (session->conn, - "reserve_update", - params); - /* FIXME: properly distinguish between hard and soft (retry-able) failures here! */ - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - QUERY_ERR (result, - session->conn); - ret = GNUNET_SYSERR; - } - else - { - ret = GNUNET_OK; - } - PQclear (result); - return ret; + return execute_prepared_non_select (session, + "reserve_update", + params); } @@ -2881,7 +2996,9 @@ postgres_have_deposit (void *cls, * @param cls the @e cls of this struct with the plugin-specific state * @param session connection to the database * @param rowid identifies the deposit row to modify - * @return #GNUNET_OK on success, #GNUNET_SYSERR on error + * @return #GNUNET_OK on success, + * #GNUNET_NO on transient error + * #GNUNET_SYSERR on error */ static int postgres_mark_deposit_tiny (void *cls, @@ -2892,20 +3009,10 @@ postgres_mark_deposit_tiny (void *cls, GNUNET_PQ_query_param_uint64 (&rowid), GNUNET_PQ_query_param_end }; - PGresult *result; - result = GNUNET_PQ_exec_prepared (session->conn, - "mark_deposit_tiny", - params); - if (PGRES_COMMAND_OK != - PQresultStatus (result)) - { - BREAK_DB_ERR (result, session->conn); - PQclear (result); - return GNUNET_SYSERR; - } - PQclear (result); - return GNUNET_OK; + return execute_prepared_non_select (session, + "mark_deposit_tiny", + params); } @@ -2986,7 +3093,9 @@ postgres_test_deposit_done (void *cls, * @param cls the @e cls of this struct with the plugin-specific state * @param session connection to the database * @param rowid identifies the deposit row to modify - * @return #GNUNET_OK on success, #GNUNET_SYSERR on error + * @return #GNUNET_OK on success, + * #GNUNET_NO on transient error, + * #GNUNET_SYSERR on error */ static int postgres_mark_deposit_done (void *cls, @@ -2997,20 +3106,10 @@ postgres_mark_deposit_done (void *cls, GNUNET_PQ_query_param_uint64 (&rowid), GNUNET_PQ_query_param_end }; - PGresult *result; - result = GNUNET_PQ_exec_prepared (session->conn, - "mark_deposit_done", - params); - if (PGRES_COMMAND_OK != - PQresultStatus (result)) - { - BREAK_DB_ERR (result, session->conn); - PQclear (result); - return GNUNET_SYSERR; - } - PQclear (result); - return GNUNET_OK; + return execute_prepared_non_select (session, + "mark_deposit_done", + params); } @@ -3289,14 +3388,15 @@ get_known_coin (void *cls, * @param cls plugin closure * @param session the shared database session * @param coin_info the public coin info - * @return #GNUNET_SYSERR upon error; #GNUNET_OK upon success + * @return #GNUNET_SYSERR upon error; + * #GNUNET_NO on transient error + * #GNUNET_OK upon success */ static int insert_known_coin (void *cls, struct TALER_EXCHANGEDB_Session *session, const struct TALER_CoinPublicInfo *coin_info) { - PGresult *result; struct GNUNET_HashCode denom_pub_hash; struct GNUNET_PQ_QueryParam params[] = { GNUNET_PQ_query_param_auto_from_type (&coin_info->coin_pub), @@ -3307,17 +3407,9 @@ insert_known_coin (void *cls, GNUNET_CRYPTO_rsa_public_key_hash (coin_info->denom_pub.rsa_public_key, &denom_pub_hash); - result = GNUNET_PQ_exec_prepared (session->conn, - "insert_known_coin", - params); - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - BREAK_DB_ERR (result, session->conn); - PQclear (result); - return GNUNET_SYSERR; - } - PQclear (result); - return GNUNET_OK; + return execute_prepared_non_select (session, + "insert_known_coin", + params); } @@ -3327,14 +3419,15 @@ insert_known_coin (void *cls, * @param cls the `struct PostgresClosure` with the plugin-specific state * @param session connection to the database * @param deposit deposit information to store - * @return #GNUNET_OK on success, #GNUNET_SYSERR on error + * @return #GNUNET_OK on success, + * #GNUNET_NO on transient error + * #GNUNET_SYSERR on error */ static int postgres_insert_deposit (void *cls, struct TALER_EXCHANGEDB_Session *session, const struct TALER_EXCHANGEDB_Deposit *deposit) { - PGresult *result; int ret; struct GNUNET_PQ_QueryParam params[] = { GNUNET_PQ_query_param_auto_from_type (&deposit->coin.coin_pub), @@ -3362,30 +3455,19 @@ postgres_insert_deposit (void *cls, } if (GNUNET_NO == ret) /* if not, insert it */ { - if (GNUNET_SYSERR == - insert_known_coin (cls, - session, - &deposit->coin)) + if (GNUNET_OK != + (ret = insert_known_coin (cls, + session, + &deposit->coin))) { - GNUNET_break (0); - return GNUNET_SYSERR; + GNUNET_break (GNUNET_NO == ret); + return ret; } } - result = GNUNET_PQ_exec_prepared (session->conn, - "insert_deposit", - params); - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - BREAK_DB_ERR (result, session->conn); - ret = GNUNET_SYSERR; - } - else - { - ret = GNUNET_OK; - } - PQclear (result); - return ret; + return execute_prepared_non_select (session, + "insert_deposit", + params); } @@ -3395,15 +3477,15 @@ postgres_insert_deposit (void *cls, * @param cls the @e cls of this struct with the plugin-specific state * @param session connection to the database * @param refund refund information to store - * @return #GNUNET_OK on success, #GNUNET_SYSERR on error + * @return #GNUNET_OK on success + * #GNUNET_NO on transient error + * #GNUNET_SYSERR on error */ static int postgres_insert_refund (void *cls, struct TALER_EXCHANGEDB_Session *session, const struct TALER_EXCHANGEDB_Refund *refund) { - PGresult *result; - int ret; struct GNUNET_PQ_QueryParam params[] = { GNUNET_PQ_query_param_auto_from_type (&refund->coin.coin_pub), GNUNET_PQ_query_param_auto_from_type (&refund->merchant_pub), @@ -3413,23 +3495,13 @@ postgres_insert_refund (void *cls, TALER_PQ_query_param_amount (&refund->refund_amount), GNUNET_PQ_query_param_end }; + GNUNET_assert (GNUNET_YES == TALER_amount_cmp_currency (&refund->refund_amount, &refund->refund_fee)); - result = GNUNET_PQ_exec_prepared (session->conn, - "insert_refund", - params); - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - ret = GNUNET_SYSERR; - BREAK_DB_ERR (result, session->conn); - } - else - { - ret = GNUNET_OK; - } - PQclear (result); - return ret; + return execute_prepared_non_select (session, + "insert_refund", + params); } @@ -3532,6 +3604,7 @@ postgres_get_refresh_session (void *cls, * @param session_hash hash over the melt to use to locate the session * @param refresh_session session data to store * @return #GNUNET_YES on success, + * #GNUNET_NO on transient error * #GNUNET_SYSERR on DB failure */ static int @@ -3540,7 +3613,6 @@ postgres_create_refresh_session (void *cls, const struct GNUNET_HashCode *session_hash, const struct TALER_EXCHANGEDB_RefreshSession *refresh_session) { - PGresult *result; struct GNUNET_PQ_QueryParam params[] = { GNUNET_PQ_query_param_auto_from_type (session_hash), GNUNET_PQ_query_param_auto_from_type (&refresh_session->melt.coin.coin_pub), @@ -3564,27 +3636,19 @@ postgres_create_refresh_session (void *cls, } if (GNUNET_NO == ret) /* if not, insert it */ { - if (GNUNET_SYSERR == - insert_known_coin (cls, - session, - &refresh_session->melt.coin)) + if (GNUNET_OK != + (ret = insert_known_coin (cls, + session, + &refresh_session->melt.coin))) { - GNUNET_break (0); + GNUNET_break (GNUNET_NO == ret); return GNUNET_SYSERR; } } - /* insert session */ - result = GNUNET_PQ_exec_prepared (session->conn, - "insert_refresh_session", - params); - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - BREAK_DB_ERR (result, session->conn); - PQclear (result); - return GNUNET_SYSERR; - } - PQclear (result); - return GNUNET_OK; + + return execute_prepared_non_select (session, + "insert_refresh_session", + params); } @@ -3809,9 +3873,7 @@ postgres_free_refresh_commit_coins (void *cls, unsigned int commit_coins_len, struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins) { - unsigned int i; - - for (i=0;i<commit_coins_len;i++) + for (unsigned int i=0;i<commit_coins_len;i++) { GNUNET_free (commit_coins[i].coin_ev); commit_coins[i].coin_ev = NULL; @@ -3840,9 +3902,7 @@ postgres_get_refresh_commit_coins (void *cls, uint16_t num_newcoins, struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins) { - unsigned int i; - - for (i=0;i<(unsigned int) num_newcoins;i++) + for (unsigned int i=0;i<(unsigned int) num_newcoins;i++) { uint16_t newcoin_off = (uint16_t) i; struct GNUNET_PQ_QueryParam params[] = { @@ -3910,7 +3970,9 @@ postgres_get_refresh_commit_coins (void *cls, * @param session database connection to use * @param session_hash hash to identify refresh session * @param tp transfer public key to store - * @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success + * @return #GNUNET_SYSERR on internal error, + * #GNUNET_NO on transient errors + * #GNUNET_OK on success */ static int postgres_insert_refresh_transfer_public_key (void *cls, @@ -3924,25 +3986,9 @@ postgres_insert_refresh_transfer_public_key (void *cls, GNUNET_PQ_query_param_end }; - PGresult *result; - - result = GNUNET_PQ_exec_prepared (session->conn, - "insert_transfer_public_key", - params); - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - BREAK_DB_ERR (result, session->conn); - PQclear (result); - return GNUNET_SYSERR; - } - - if (0 != strcmp ("1", PQcmdTuples (result))) - { - GNUNET_break (0); - return GNUNET_SYSERR; - } - PQclear (result); - return GNUNET_OK; + return execute_prepared_non_select (session, + "insert_transfer_public_key", + params); } @@ -4077,6 +4123,7 @@ postgres_get_refresh_out (void *cls, * @param newcoin_index coin index * @param ev_sig coin signature * @return #GNUNET_OK on success + * #GNUNET_NO on transient error * #GNUNET_SYSERR on error */ static int @@ -4086,7 +4133,6 @@ postgres_insert_refresh_out (void *cls, uint16_t newcoin_index, const struct TALER_DenominationSignature *ev_sig) { - PGresult *result; struct GNUNET_PQ_QueryParam params[] = { GNUNET_PQ_query_param_auto_from_type (session_hash), GNUNET_PQ_query_param_uint16 (&newcoin_index), @@ -4094,17 +4140,9 @@ postgres_insert_refresh_out (void *cls, GNUNET_PQ_query_param_end }; - result = GNUNET_PQ_exec_prepared (session->conn, - "insert_refresh_out", - params); - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - BREAK_DB_ERR (result, session->conn); - PQclear (result); - return GNUNET_SYSERR; - } - PQclear (result); - return GNUNET_OK; + return execute_prepared_non_select (session, + "insert_refresh_out", + params); } @@ -4123,7 +4161,6 @@ postgres_get_link_data_list (void *cls, const struct GNUNET_HashCode *session_hash) { struct TALER_EXCHANGEDB_LinkDataList *ldl; - int i; int nrows; struct GNUNET_PQ_QueryParam params[] = { GNUNET_PQ_query_param_auto_from_type (session_hash), @@ -4148,7 +4185,7 @@ postgres_get_link_data_list (void *cls, return NULL; } - for (i = nrows-1; i >= 0; i--) + for (int i = nrows-1; i >= 0; i--) { struct GNUNET_CRYPTO_RsaPublicKey *denom_pub; struct GNUNET_CRYPTO_RsaSignature *sig; @@ -4215,7 +4252,6 @@ postgres_get_transfer (void *cls, }; PGresult *result; int nrows; - int i; result = GNUNET_PQ_exec_prepared (session->conn, "get_transfer", @@ -4234,7 +4270,7 @@ postgres_get_transfer (void *cls, PQclear (result); return GNUNET_NO; } - for (i=0;i<nrows;i++) + for (int i=0;i<nrows;i++) { struct GNUNET_HashCode session_hash; struct TALER_TransferPublicKeyP transfer_pub; @@ -4286,7 +4322,6 @@ postgres_get_coin_transactions (void *cls, GNUNET_PQ_query_param_end }; int nrows; - int i; PGresult *result; struct TALER_EXCHANGEDB_TransactionList *tl; @@ -4300,7 +4335,7 @@ postgres_get_coin_transactions (void *cls, goto cleanup; } nrows = PQntuples (result); - for (i = 0; i < nrows; i++) + for (int i = 0; i < nrows; i++) { struct TALER_EXCHANGEDB_Deposit *deposit; @@ -4366,7 +4401,6 @@ postgres_get_coin_transactions (void *cls, GNUNET_PQ_query_param_end }; int nrows; - int i; PGresult *result; struct TALER_EXCHANGEDB_TransactionList *tl; @@ -4381,7 +4415,7 @@ postgres_get_coin_transactions (void *cls, goto cleanup; } nrows = PQntuples (result); - for (i=0;i<nrows;i++) + for (int i=0;i<nrows;i++) { struct TALER_EXCHANGEDB_RefreshMelt *melt; @@ -4437,7 +4471,6 @@ postgres_get_coin_transactions (void *cls, GNUNET_PQ_query_param_end }; int nrows; - int i; PGresult *result; struct TALER_EXCHANGEDB_TransactionList *tl; @@ -4452,7 +4485,7 @@ postgres_get_coin_transactions (void *cls, goto cleanup; } nrows = PQntuples (result); - for (i=0;i<nrows;i++) + for (int i=0;i<nrows;i++) { struct TALER_EXCHANGEDB_Refund *refund; @@ -4512,7 +4545,6 @@ postgres_get_coin_transactions (void *cls, GNUNET_PQ_query_param_end }; int nrows; - int i; PGresult *result; struct TALER_EXCHANGEDB_TransactionList *tl; @@ -4527,7 +4559,7 @@ postgres_get_coin_transactions (void *cls, goto cleanup; } nrows = PQntuples (result); - for (i=0;i<nrows;i++) + for (int i=0;i<nrows;i++) { struct TALER_EXCHANGEDB_Payback *payback; @@ -4606,7 +4638,6 @@ postgres_lookup_wire_transfer (void *cls, GNUNET_PQ_query_param_end }; int nrows; - int i; /* check if the melt record exists and get it */ result = GNUNET_PQ_exec_prepared (session->conn, @@ -4626,7 +4657,7 @@ postgres_lookup_wire_transfer (void *cls, PQclear (result); return GNUNET_NO; } - for (i=0;i<nrows;i++) + for (int i=0;i<nrows;i++) { uint64_t rowid; struct GNUNET_HashCode h_proposal_data; @@ -4852,7 +4883,9 @@ postgres_wire_lookup_deposit_wtid (void *cls, * @param session database connection * @param wtid the raw wire transfer identifier we used * @param deposit_serial_id row in the deposits table for which this is aggregation data - * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors + * @return #GNUNET_OK on success, + * #GNUNET_NO on transient errors + * #GNUNET_SYSERR on DB errors */ static int postgres_insert_aggregation_tracking (void *cls, @@ -4866,25 +4899,10 @@ postgres_insert_aggregation_tracking (void *cls, GNUNET_PQ_query_param_auto_from_type (wtid), GNUNET_PQ_query_param_end }; - PGresult *result; - result = GNUNET_PQ_exec_prepared (session->conn, - "insert_aggregation_tracking", - params); - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - BREAK_DB_ERR (result, session->conn); - PQclear (result); - return GNUNET_SYSERR; - } - if (0 != strcmp ("1", PQcmdTuples (result))) - { - GNUNET_break (0); - PQclear (result); - return GNUNET_SYSERR; - } - PQclear (result); - return GNUNET_OK; + return execute_prepared_non_select (session, + "insert_aggregation_tracking", + params); } @@ -4973,7 +4991,8 @@ postgres_get_wire_fee (void *cls, * @param end_date when does the fee end being valid * @param wire_fee how high is the wire transfer fee * @param master_sig signature over the above by the exchange master key - * @return #GNUNET_OK on success, #GNUNET_NO if the record exists, + * @return #GNUNET_OK on success or if the record exists, + * #GNUNET_NO on transient errors * #GNUNET_SYSERR on failure */ static int @@ -4993,7 +5012,6 @@ postgres_insert_wire_fee (void *cls, GNUNET_PQ_query_param_auto_from_type (master_sig), GNUNET_PQ_query_param_end }; - PGresult *result; struct TALER_Amount wf; struct TALER_MasterSignatureP sig; struct GNUNET_TIME_Absolute sd; @@ -5029,26 +5047,12 @@ postgres_insert_wire_fee (void *cls, return GNUNET_SYSERR; } /* equal record already exists */ - return GNUNET_NO; + return GNUNET_OK; } - result = GNUNET_PQ_exec_prepared (session->conn, - "insert_wire_fee", - params); - if (PGRES_COMMAND_OK != PQresultStatus (result)) - { - BREAK_DB_ERR (result, session->conn); - PQclear (result); - return GNUNET_SYSERR; - } - if (0 != strcmp ("1", PQcmdTuples (result))) - { - GNUNET_break (0); - PQclear (result); - return GNUNET_SYSERR; - } - PQclear (result); - return GNUNET_OK; + return execute_prepared_non_select (session, + "insert_wire_fee", + params); } @@ -5424,6 +5428,7 @@ postgres_start_deferred_wire_out (void *cls, return GNUNET_SYSERR; } PQclear (result); + session->state = GNUNET_OK; return GNUNET_OK; } @@ -6377,6 +6382,7 @@ postgres_select_reserve_closed_above_serial_id (void *cls, * @param h_blind_ev hash of the blinded coin's envelope (must match reserves_out entry) * @param timestamp current time (rounded) * @return #GNUNET_OK on success, + * #GNUNET_NO on transient error * #GNUNET_SYSERR on DB errors */ static int @@ -6418,13 +6424,13 @@ postgres_insert_payback_request (void *cls, } if (GNUNET_NO == ret) /* if not, insert it */ { - if (GNUNET_SYSERR == - insert_known_coin (cls, - session, - coin)) + if (GNUNET_OK != + (ret = insert_known_coin (cls, + session, + coin))) { - GNUNET_break (0); - return GNUNET_SYSERR; + GNUNET_break (GNUNET_NO == ret); + return ret; } } diff --git a/src/exchangedb/test_exchangedb.c b/src/exchangedb/test_exchangedb.c index f5358ff0a..8924c0db1 100644 --- a/src/exchangedb/test_exchangedb.c +++ b/src/exchangedb/test_exchangedb.c @@ -1168,7 +1168,7 @@ test_wire_fees (struct TALER_EXCHANGEDB_Session *session) GNUNET_break (0); return GNUNET_SYSERR; } - if (GNUNET_NO != + if (GNUNET_OK != plugin->insert_wire_fee (plugin->cls, session, "wire-method", diff --git a/src/include/taler_exchangedb_plugin.h b/src/include/taler_exchangedb_plugin.h index 01948a1c6..10bf805eb 100644 --- a/src/include/taler_exchangedb_plugin.h +++ b/src/include/taler_exchangedb_plugin.h @@ -1308,7 +1308,9 @@ struct TALER_EXCHANGEDB_Plugin * @param cls the @e cls of this struct with the plugin-specific state * @param session connection to the database * @param deposit deposit information to store - * @return #GNUNET_OK on success, #GNUNET_SYSERR on error + * @return #GNUNET_OK on success, + * #GNUNET_NO on transient error + * #GNUNET_SYSERR on error */ int (*insert_deposit) (void *cls, @@ -1322,7 +1324,9 @@ struct TALER_EXCHANGEDB_Plugin * @param cls the @e cls of this struct with the plugin-specific state * @param session connection to the database * @param refund refund information to store - * @return #GNUNET_OK on success, #GNUNET_SYSERR on error + * @return #GNUNET_OK on success, + * #GNUNET_NO on transient error + * #GNUNET_SYSERR on error */ int (*insert_refund) (void *cls, @@ -1338,7 +1342,9 @@ struct TALER_EXCHANGEDB_Plugin * @param cls the @e cls of this struct with the plugin-specific state * @param session connection to the database * @param deposit_rowid identifies the deposit row to modify - * @return #GNUNET_OK on success, #GNUNET_SYSERR on error + * @return #GNUNET_OK on success + * #GNUNET_NO on transient error + * #GNUNET_SYSERR on error */ int (*mark_deposit_tiny) (void *cls, @@ -1370,7 +1376,9 @@ struct TALER_EXCHANGEDB_Plugin * @param cls the @e cls of this struct with the plugin-specific state * @param session connection to the database * @param deposit_rowid identifies the deposit row to modify - * @return #GNUNET_OK on success, #GNUNET_SYSERR on error + * @return #GNUNET_OK on success, + * #GNUNET_NO on transient error + * #GNUNET_SYSERR on error */ int (*mark_deposit_done) (void *cls, @@ -1460,6 +1468,7 @@ struct TALER_EXCHANGEDB_Plugin * @param session_hash hash over the melt to use to locate the session * @param refresh_session session data to store * @return #GNUNET_YES on success, + * #GNUNET_NO on transient error * #GNUNET_SYSERR on DB failure */ int @@ -1570,7 +1579,9 @@ struct TALER_EXCHANGEDB_Plugin * @param session database connection to use * @param session_hash hash to identify refresh session * @param tp public key to store - * @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success + * @return #GNUNET_SYSERR on internal error + * #GNUNET_NO on transient errors + * #GNUNET_OK on success */ int (*insert_refresh_transfer_public_key) (void *cls, @@ -1769,7 +1780,9 @@ struct TALER_EXCHANGEDB_Plugin * @param session database connection * @param wtid the raw wire transfer identifier we used * @param deposit_serial_id row in the deposits table for which this is aggregation data - * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors + * @return #GNUNET_OK on success + * #GNUNET_NO on transient errors + * #GNUNET_SYSERR on DB errors */ int (*insert_aggregation_tracking)(void *cls, @@ -1788,7 +1801,8 @@ struct TALER_EXCHANGEDB_Plugin * @param end_date when does the fee end being valid * @param wire_fee how high is the wire transfer fee * @param master_sig signature over the above by the exchange master key - * @return #GNUNET_OK on success, #GNUNET_NO if the record exists, + * @return #GNUNET_OK on success or if the record exists, + * #GNUNET_NO on transient errors, * #GNUNET_SYSERR on failure */ int @@ -2160,6 +2174,7 @@ struct TALER_EXCHANGEDB_Plugin * @param h_blind_ev hash of the blinded coin's envelope (must match reserves_out entry) * @param now timestamp to store * @return #GNUNET_OK on success, + * #GNUNET_NO on transient error * #GNUNET_SYSERR on DB errors */ int |