100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*
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This file is part of TALER
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Copyright (C) 2020 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file include/taler_sq_lib.h
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* @brief helper functions for DB interactions with SQLite
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* @author Jonathan Buchanan
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*/
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#ifndef TALER_SQ_LIB_H_
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#define TALER_SQ_LIB_H_
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#include <sqlite3.h>
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#include <jansson.h>
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#include <gnunet/gnunet_sq_lib.h>
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#include "taler_util.h"
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/**
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* Generate query parameter for a currency, consisting of the
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* components "value", "fraction" in this order. The
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* types must be a 64-bit integer and a 64-bit integer.
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*
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* @param x pointer to the query parameter to pass
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*/
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struct GNUNET_SQ_QueryParam
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TALER_SQ_query_param_amount_nbo (const struct TALER_AmountNBO *x);
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/**
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* Generate query parameter for a currency, consisting of the
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* components "value", "fraction" in this order. The
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* types must be a 64-bit integer and a 64-bit integer.
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*
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* @param x pointer to the query parameter to pass
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*/
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struct GNUNET_SQ_QueryParam
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TALER_SQ_query_param_amount (const struct TALER_Amount *x);
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/**
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* Generate query parameter for a JSON object (stored as a string
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* in the DB). Note that @a x must really be a JSON object or array,
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* passing just a value (string, integer) is not supported and will
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* result in an abort.
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*
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* @param x pointer to the json object to pass
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*/
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struct GNUNET_SQ_QueryParam
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TALER_SQ_query_param_json (const json_t *x);
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/**
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* Currency amount expected.
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*
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* @param currency currency to use for @a amount
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* @param[out] amount where to store the result
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* @return array entry for the result specification to use
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*/
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struct GNUNET_SQ_ResultSpec
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TALER_SQ_result_spec_amount_nbo (const char *currency,
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struct TALER_AmountNBO *amount);
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/**
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* Currency amount expected.
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*
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* @param currency currency to use for @a amount
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* @param[out] amount where to store the result
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* @return array entry for the result specification to use
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*/
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struct GNUNET_SQ_ResultSpec
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TALER_SQ_result_spec_amount (const char *currency,
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struct TALER_Amount *amount);
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/**
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* json_t expected.
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*
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* @param[out] jp where to store the result
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* @return array entry for the result specification to use
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*/
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struct GNUNET_SQ_ResultSpec
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TALER_SQ_result_spec_json (json_t **jp);
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#endif /* TALER_SQ_LIB_H_ */
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/* end of include/taler_sq_lib.h */
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