Imported Upstream version 5.3.1

1 files changed, 33 insertions, 0 deletions

diff --git a/src/libcharon/plugins/vici/vici_dispatcher.h b/src/libcharon/plugins/vici/vici_dispatcher.h
index 2297a80bd..e48cf3bd1 100644
--- a/src/libcharon/plugins/vici/vici_dispatcher.h
+++ b/src/libcharon/plugins/vici/vici_dispatcher.h
@@ -13,6 +13,28 @@
  * for more details.
  */
 
+/*
+ * Copyright (C) 2014 Timo Teräs <timo.teras@iki.fi>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
 /**
  * @defgroup vici_dispatcher vici_dispatcher
  * @{ @ingroup vici
@@ -96,6 +118,17 @@ struct vici_dispatcher_t {
 	void (*manage_event)(vici_dispatcher_t *this, char *name, bool reg);
 
 	/**
+	 * Check if an event has listeners.
+	 *
+	 * This can be used to check if a vici message needs to be generated or not,
+	 * as in some cases the generation can be a heavy operation.
+	 *
+	 * @param name			event name to check
+	 * @return				TRUE if event has listeners
+	 */
+	bool (*has_event_listeners)(vici_dispatcher_t *this, char *name);
+
+	/**
 	 * Raise an event to a specific or all clients registered to that event.
 	 *
 	 * @param name			event name to raise