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author | Joseph <Joseph.xu@efrei.net> | 2022-11-14 07:35:56 -0500 |
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committer | Joseph <Joseph.xu@efrei.net> | 2022-11-14 07:35:56 -0500 |
commit | 6991ca011b4f97d24066f82ccd09adde8a692f6a (patch) | |
tree | 810a12b9b1d3e78abcb2bf7c653d3cc2c5823746 /src/exchangedb/pg_get_known_coin.c | |
parent | 41e3c1ecbf0c437f58be3084a9401aa71c515a62 (diff) | |
download | exchange-6991ca011b4f97d24066f82ccd09adde8a692f6a.tar.xz |
remove more functions
Diffstat (limited to 'src/exchangedb/pg_get_known_coin.c')
-rw-r--r-- | src/exchangedb/pg_get_known_coin.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/exchangedb/pg_get_known_coin.c b/src/exchangedb/pg_get_known_coin.c new file mode 100644 index 000000000..fe5c683bc --- /dev/null +++ b/src/exchangedb/pg_get_known_coin.c @@ -0,0 +1,71 @@ +/* + 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_get_known_coin.c + * @brief Implementation of the get_known_coin 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_get_known_coin.h" +#include "pg_helper.h" + +enum GNUNET_DB_QueryStatus +TEH_PG_get_known_coin (void *cls, + const struct TALER_CoinSpendPublicKeyP *coin_pub, + struct TALER_CoinPublicInfo *coin_info) +{ + struct PostgresClosure *pg = cls; + struct GNUNET_PQ_QueryParam params[] = { + GNUNET_PQ_query_param_auto_from_type (coin_pub), + GNUNET_PQ_query_param_end + }; + struct GNUNET_PQ_ResultSpec rs[] = { + GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash", + &coin_info->denom_pub_hash), + GNUNET_PQ_result_spec_allow_null ( + GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash", + &coin_info->h_age_commitment), + &coin_info->no_age_commitment), + TALER_PQ_result_spec_denom_sig ("denom_sig", + &coin_info->denom_sig), + GNUNET_PQ_result_spec_end + }; + + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Getting known coin data for coin %s\n", + TALER_B2S (coin_pub)); + coin_info->coin_pub = *coin_pub; + /* Used in #postgres_get_known_coin() to fetch + the denomination public key and signature for + a coin known to the exchange. */ + PREPARE (pg, + "get_known_coin", + "SELECT" + " denominations.denom_pub_hash" + ",age_commitment_hash" + ",denom_sig" + " FROM known_coins" + " JOIN denominations USING (denominations_serial)" + " WHERE coin_pub=$1;"); + + return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, + "get_known_coin", + params, + rs); +} |