forgot to add include earlier

src/include/taler_util_wallet.h

@@ -0,0 +1,90 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 Christian Grothoff (and other contributing authors)
+
+  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, 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"
+
+
+
+/* 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 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);
+
+
+#endif