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/*
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_begin_shard.h
* @brief implementation of the begin_shard function for Postgres
* @author Christian Grothoff
*/
#ifndef PG_BEGIN_SHARD_H
#define PG_BEGIN_SHARD_H
#include "taler_util.h"
#include "taler_json_lib.h"
#include "taler_exchangedb_plugin.h"
/**
* Function called to grab a work shard on an operation @a op. Runs in its
* own transaction.
*
* @param cls the @e cls of this struct with the plugin-specific state
* @param job_name name of the operation to grab a word shard for
* @param delay minimum age of a shard to grab
* @param shard_size desired shard size
* @param[out] start_row inclusive start row of the shard (returned)
* @param[out] end_row exclusive end row of the shard (returned)
* @return transaction status code
*/
enum GNUNET_DB_QueryStatus
TEH_PG_begin_shard (void *cls,
const char *job_name,
struct GNUNET_TIME_Relative delay,
uint64_t shard_size,
uint64_t *start_row,
uint64_t *end_row);
#endif
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