events

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@131 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_event.h

@@ -0,0 +1,55 @@
+/* 
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ *
+ * The Initial Developer of the Original Code is
+ * Anthony Minessale II <anthmct@yahoo.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * 
+ * Anthony Minessale II <anthmct@yahoo.com>
+ *
+ *
+ * switch_event.h -- Event System
+ *
+ */
+#ifndef SWITCH_EVENT_H
+#define SWITCH_EVENT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <switch.h>
+
+struct switch_event_node {
+	char *id;
+	switch_event_t event;
+	int subclass;
+	switch_event_callback_t callback;
+	struct switch_event_node *next;
+};
+
+SWITCH_DECLARE(switch_status) switch_event_init(switch_memory_pool *pool);
+SWITCH_DECLARE(switch_status) switch_event_fire_subclass(switch_event_t event, int subclass, char *data);
+SWITCH_DECLARE(switch_status) switch_event_bind(char *id, switch_event_t event, int subclass, switch_event_callback_t callback);
+SWITCH_DECLARE(char *) switch_event_name(switch_event_t event);
+#define switch_event_fire(event, data) switch_event_fire_subclass(event, 0, data);
+
+#endif

src/switch_event.c

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+/* 
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ *
+ * The Initial Developer of the Original Code is
+ * Anthony Minessale II <anthmct@yahoo.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * 
+ * Anthony Minessale II <anthmct@yahoo.com>
+ *
+ *
+ * switch_event.c -- Event System
+ *
+ */
+#include <switch_event.h>
+
+static switch_event_node *EVENT_NODES[SWITCH_EVENT_ALL+1] = {};
+static switch_mutex_t *ELOCK = NULL;
+static switch_memory_pool *EPOOL = NULL;
+
+/* make sure this is synced with the switch_event_t enum in switch_types.h
+   also never put any new ones before EVENT_ALL
+*/
+static char *EVENT_NAMES[] = {
+	"CUSTOM",
+	"INBOUND_CHAN",
+	"OUTBOUND_CHAN",
+	"ANSWER_CHAN",
+	"HANGUP_CHAN",
+	"STARTUP",
+	"ALL"
+};
+
+SWITCH_DECLARE(char *) switch_event_name(switch_event_t event)
+{
+	return EVENT_NAMES[event];
+}
+
+SWITCH_DECLARE(switch_status) switch_event_init(switch_memory_pool *pool)
+{
+	assert(pool != NULL);
+	EPOOL = pool;
+	switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Activate Eventing Engine.\n");
+	return switch_mutex_init(&ELOCK, SWITCH_MUTEX_NESTED, EPOOL);
+}
+
+SWITCH_DECLARE(switch_status) switch_event_fire_subclass(switch_event_t event, int subclass, char *data)
+{
+	switch_event_node *enp;
+	switch_event_t e;
+
+	assert(ELOCK != NULL);
+	assert(EPOOL != NULL);
+
+	for(e = event;; e = SWITCH_EVENT_ALL) {
+		for(enp = EVENT_NODES[e]; enp; enp = enp->next) {
+			if ((enp->event == event || enp->event == SWITCH_EVENT_ALL) && (enp->subclass == subclass || enp->subclass < 0)) {
+				enp->callback(event, subclass, data);
+			}
+		}
+		
+		if (e == SWITCH_EVENT_ALL) {
+			break;
+		}
+
+	}
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
+SWITCH_DECLARE(switch_status) switch_event_bind(char *id, switch_event_t event, int subclass, switch_event_callback_t callback)
+{
+	switch_event_node *event_node;
+
+	assert(ELOCK != NULL);
+	assert(EPOOL != NULL);
+
+	if (event <= SWITCH_EVENT_ALL && (event_node = switch_core_alloc(EPOOL, sizeof(switch_event_node)))) {
+		event_node->id = switch_core_strdup(EPOOL, id);
+		event_node->event = event;
+		event_node->subclass = subclass;
+		event_node->callback = callback;
+		if (EVENT_NODES[event]) {
+			event_node->next = EVENT_NODES[event];
+		}
+		EVENT_NODES[event] = event_node;
+		return SWITCH_STATUS_SUCCESS;
+	}
+
+	return SWITCH_STATUS_MEMERR;
+}
+