skeleton for binary to implement #4141

src/mint/Makefile.am

@@ -7,8 +7,18 @@ if USE_COVERAGE
 endif
 
 bin_PROGRAMS = \
+  taler-mint-aggregator \
   taler-mint-httpd
 
+taler_mint_aggregator_SOURCES = \
+  taler-mint-aggregator.c
+taler_mint_aggregator_LDADD = \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/mintdb/libtalermintdb.la \
+  -ljansson \
+  -lgnunetutil
+
 taler_mint_httpd_SOURCES = \
   taler-mint-httpd.c taler-mint-httpd.h \
   taler-mint-httpd_admin.c taler-mint-httpd_admin.h \

src/mint/taler-mint-aggregator.c

@@ -0,0 +1,147 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero 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 Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file taler-mint-aggregator.c
+ * @brief Process that aggregates outgoing transactions and executes them
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <pthread.h>
+#include "taler_wire_plugin.h"
+
+/**
+ * Which currency is used by this mint?
+ */
+static char *mint_currency_string;
+
+/**
+ * Base directory of the mint (global)
+ */
+static char *mint_directory;
+
+/**
+ * The mint's configuration (global)
+ */
+static struct GNUNET_CONFIGURATION_Handle *cfg;
+
+/**
+ * Our DB plugin.
+ */
+static struct TALER_MINTDB_Plugin *db_plugin;
+
+
+/**
+ * Load configuration parameters for the mint
+ * server into the corresponding global variables.
+ *
+ * @param mint_directory the mint's directory
+ * @return #GNUNET_OK on success
+ */
+static int
+mint_serve_process_config (const char *mint_directory)
+{
+  unsigned long long port;
+
+  cfg = TALER_config_load (mint_directory);
+  if (NULL == cfg)
+  {
+    fprintf (stderr,
+             "Failed to load mint configuration\n");
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+                                             "mint",
+                                             "currency",
+                                             &mint_currency_string))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "mint",
+                               "currency");
+    return GNUNET_SYSERR;
+  }
+  if (strlen (mint_currency_string) >= TALER_CURRENCY_LEN)
+  {
+    fprintf (stderr,
+             "Currency `%s' longer than the allowed limit of %u characters.",
+             mint_currency_string,
+             (unsigned int) TALER_CURRENCY_LEN);
+    return GNUNET_SYSERR;
+  }
+
+  if (NULL ==
+      (db_plugin = TALER_MINTDB_plugin_load (cfg)))
+  {
+    fprintf (stderr,
+             "Failed to initialize DB subsystem\n");
+    return GNUNET_SYSERR;
+  }
+
+  return GNUNET_OK;
+}
+
+
+/**
+ * The main function of the taler-mint-httpd server ("the mint").
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc,
+      char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'d', "mint-dir", "DIR",
+     "mint directory with configuration and keys for operating the mint", 1,
+     &GNUNET_GETOPT_set_filename, &mint_directory},
+    TALER_GETOPT_OPTION_HELP ("background process that aggregates and executes wire transfers to merchants"),
+    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+    GNUNET_GETOPT_OPTION_END
+  };
+  int ret;
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-mint-aggregator",
+                                   "INFO",
+                                   NULL));
+  if (0 >=
+      GNUNET_GETOPT_run ("taler-mint-aggregator",
+                         options,
+                         argc, argv))
+    return 1;
+  if (NULL == mint_directory)
+  {
+    fprintf (stderr,
+             "Mint directory not specified\n");
+    return 1;
+  }
+
+  if (GNUNET_OK !=
+      mint_serve_process_config (mint_directory))
+    return 1;
+
+
+
+  TALER_MINTDB_plugin_unload (db_plugin);
+  return (GNUNET_SYSERR == ret) ? 1 : 0;
+}
+
+/* end of taler-mint-aggregator.c */