new convenience function to do operations on a configuration object to avoid repetitive configuration_create, _load and _destroy logic

1 files changed, 35 insertions, 0 deletions

diff --git a/src/util/configuration.c b/src/util/configuration.c
index 41eb3188d..a8e492a32 100644
--- a/src/util/configuration.c
+++ b/src/util/configuration.c
@@ -138,6 +138,41 @@ GNUNET_CONFIGURATION_destroy (struct GNUNET_CONFIGURATION_Handle *cfg)
 
 
 /**
+ * Parse a configuration file @a filename and run the function
+ * @a cb with the resulting configuration object. Then free the
+ * configuration object and return the status value from @a cb.
+ *
+ * @param filename configuration to parse, NULL for "default"
+ * @param cb function to run
+ * @param cb_cls closure for @a cb
+ * @return #GNUNET_SYSERR if parsing the configuration failed,
+ *   otherwise return value from @a cb.
+ */
+int
+GNUNET_CONFIGURATION_parse_and_run (const char *filename,
+                                    GNUNET_CONFIGURATION_Callback cb,
+                                    void *cb_cls)
+{
+  struct GNUNET_CONFIGURATION_Handle *cfg;
+  int ret;
+
+  cfg = GNUNET_CONFIGURATION_create ();
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_load (cfg,
+                                 filename))
+  {
+    GNUNET_break (0);
+    GNUNET_CONFIGURATION_destroy (cfg);
+    return GNUNET_SYSERR;
+  }
+  ret = cb (cb_cls,
+            cfg);
+  GNUNET_CONFIGURATION_destroy (cfg);
+  return ret;
+}
+
+
+/**
  * De-serializes configuration
  *
  * @param cfg configuration to update