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/*
This file is part of TALER
Copyright (C) 2014, 2015 GNUnet e.V.
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 include/taler_util_wallet.h
* @brief Interface for common utility functions for wallets
* @author Sree Harsha Totakura <sreeharsha@totakura.in>
*/
#ifndef TALER_UTIL_H
#define TALER_UTIL_H
#include <gnunet/gnunet_util_taler_wallet_lib.h>
#include "taler_amount_lib.h"
#include "taler_crypto_lib.h"
#ifdef __cplusplus
extern "C"
{
#if 0 /* keep Emacsens' auto-indent happy */
}
#endif
#endif
/* Define logging functions */
#define TALER_LOG_DEBUG(...) \
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
#define TALER_LOG_WARNING(...) \
GNUNET_log (GNUNET_ERROR_TYPE_WARNING, __VA_ARGS__)
#define TALER_LOG_ERROR(...) \
GNUNET_log (GNUNET_ERROR_TYPE_ERROR, __VA_ARGS__)
/**
* Tests a given as assertion and if failed prints it as a warning with the
* given reason
*
* @param EXP the expression to test as assertion
* @param reason string to print as warning
*/
#define TALER_assert_as(EXP, reason) \
do { \
if (EXP) break; \
TALER_LOG_ERROR ("%s at %s:%d\n", reason, __FILE__, __LINE__); \
abort (); \
} while (0)
/**
* Log an error message at log-level 'level' that indicates
* a failure of the command 'cmd' with the message given
* by gcry_strerror(rc).
*/
#define TALER_LOG_GCRY_ERROR(cmd, rc) do { TALER_LOG_ERROR ( \
"`%s' failed at %s:%d with error: %s\n", \
cmd, __FILE__, __LINE__, \
gcry_strerror (rc)); } while (0)
#define TALER_gcry_ok(cmd) \
do {int rc; rc = cmd; if (! rc) break; \
TALER_LOG_ERROR ("A Gcrypt call failed at %s:%d with error: %s\n", \
__FILE__, \
__LINE__, gcry_strerror (rc)); abort (); } while (0)
/**
* Initialize Gcrypt library.
*/
void
TALER_gcrypt_init (void);
/**
* Obtain denomination amount from configuration file.
*
* @param cfg configuration to parse
* @param section section of the configuration to access
* @param option option of the configuration to access
* @param[out] denom set to the amount found in configuration
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
TALER_config_get_denom (struct GNUNET_CONFIGURATION_Handle *cfg,
const char *section,
const char *option,
struct TALER_Amount *denom);
#if 0 /* keep Emacsens' auto-indent happy */
{
#endif
#ifdef __cplusplus
}
#endif
#endif
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