Merge in the bridge_construction branch to make the system use the Bridging API.

Breaks many things until they can be reworked.  A partial list:
chan_agent
chan_dahdi, chan_misdn, chan_iax2 native bridging
app_queue
COLP updates
DTMF attended transfers
Protocol attended transfers


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@389378 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 215 insertions, 0 deletions

diff --git a/bridges/bridge_builtin_interval_features.c b/bridges/bridge_builtin_interval_features.c
new file mode 100644
index 000000000..a0e767ed3
--- /dev/null
+++ b/bridges/bridge_builtin_interval_features.c
@@ -0,0 +1,215 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2013, Digium, Inc.
+ *
+ * Jonathan Rose <jrose@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ *
+ * \brief Built in bridging interval features
+ *
+ * \author Jonathan Rose <jrose@digium.com>
+ *
+ * \ingroup bridges
+ */
+
+/*** MODULEINFO
+	<support_level>core</support_level>
+ ***/
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$REVISION: 381278 $")
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "asterisk/module.h"
+#include "asterisk/channel.h"
+#include "asterisk/bridging.h"
+#include "asterisk/file.h"
+#include "asterisk/app.h"
+#include "asterisk/astobj2.h"
+#include "asterisk/test.h"
+
+#include "asterisk/say.h"
+#include "asterisk/stringfields.h"
+#include "asterisk/musiconhold.h"
+
+static int bridge_features_duration_callback(struct ast_bridge *bridge, struct ast_bridge_channel *bridge_channel, void *hook_pvt)
+{
+	struct ast_bridge_features_limits *limits = hook_pvt;
+
+	if (!ast_strlen_zero(limits->duration_sound)) {
+		ast_stream_and_wait(bridge_channel->chan, limits->duration_sound, AST_DIGIT_NONE);
+	}
+
+	ast_bridge_change_state(bridge_channel, AST_BRIDGE_CHANNEL_STATE_END);
+
+	ast_test_suite_event_notify("BRIDGE_TIMELIMIT", "Channel1: %s", ast_channel_name(bridge_channel->chan));
+	return -1;
+}
+
+static void limits_interval_playback(struct ast_bridge *bridge, struct ast_bridge_channel *bridge_channel, struct ast_bridge_features_limits *limits, const char *file)
+{
+	if (!strcasecmp(file, "timeleft")) {
+		unsigned int remaining = ast_tvdiff_ms(limits->quitting_time, ast_tvnow()) / 1000;
+		unsigned int min;
+		unsigned int sec;
+
+		if (remaining <= 0) {
+			return;
+		}
+
+		if ((remaining / 60) > 1) {
+			min = remaining / 60;
+			sec = remaining % 60;
+		} else {
+			min = 0;
+			sec = remaining;
+		}
+
+		ast_stream_and_wait(bridge_channel->chan, "vm-youhave", AST_DIGIT_NONE);
+		if (min) {
+			ast_say_number(bridge_channel->chan, min, AST_DIGIT_NONE,
+				ast_channel_language(bridge_channel->chan), NULL);
+			ast_stream_and_wait(bridge_channel->chan, "queue-minutes", AST_DIGIT_NONE);
+		}
+		if (sec) {
+			ast_say_number(bridge_channel->chan, sec, AST_DIGIT_NONE,
+				ast_channel_language(bridge_channel->chan), NULL);
+			ast_stream_and_wait(bridge_channel->chan, "queue-seconds", AST_DIGIT_NONE);
+		}
+	} else {
+		ast_stream_and_wait(bridge_channel->chan, file, AST_DIGIT_NONE);
+	}
+
+	/*
+	 * It may be necessary to resume music on hold after we finish
+	 * playing the announcment.
+	 *
+	 * XXX We have no idea what MOH class was in use before playing
+	 * the file.
+	 */
+	if (ast_test_flag(ast_channel_flags(bridge_channel->chan), AST_FLAG_MOH)) {
+		ast_moh_start(bridge_channel->chan, NULL, NULL);
+	}
+}
+
+static int bridge_features_connect_callback(struct ast_bridge *bridge, struct ast_bridge_channel *bridge_channel, void *hook_pvt)
+{
+	struct ast_bridge_features_limits *limits = hook_pvt;
+
+	if (bridge_channel->state != AST_BRIDGE_CHANNEL_STATE_WAIT) {
+		return -1;
+	}
+
+	limits_interval_playback(bridge, bridge_channel, limits, limits->connect_sound);
+	return -1;
+}
+
+static int bridge_features_warning_callback(struct ast_bridge *bridge, struct ast_bridge_channel *bridge_channel, void *hook_pvt)
+{
+	struct ast_bridge_features_limits *limits = hook_pvt;
+
+	if (bridge_channel->state == AST_BRIDGE_CHANNEL_STATE_WAIT) {
+		/* If we aren't in the wait state, something more important than this warning is happening and we should skip it. */
+		limits_interval_playback(bridge, bridge_channel, limits, limits->warning_sound);
+	}
+
+	return !limits->frequency ? -1 : limits->frequency;
+}
+
+static void copy_bridge_features_limits(struct ast_bridge_features_limits *dst, struct ast_bridge_features_limits *src)
+{
+	dst->duration = src->duration;
+	dst->warning = src->warning;
+	dst->frequency = src->frequency;
+	dst->quitting_time = src->quitting_time;
+
+	ast_string_field_set(dst, duration_sound, src->duration_sound);
+	ast_string_field_set(dst, warning_sound, src->warning_sound);
+	ast_string_field_set(dst, connect_sound, src->connect_sound);
+}
+
+static int bridge_builtin_set_limits(struct ast_bridge_features *features, struct ast_bridge_features_limits *limits, int remove_on_pull)
+{
+	struct ast_bridge_features_limits *feature_limits;
+
+	if (!limits->duration) {
+		return -1;
+	}
+
+	if (features->limits) {
+		ast_log(LOG_ERROR, "Tried to apply limits to a feature set that already has limits.\n");
+		return -1;
+	}
+
+	feature_limits = ast_malloc(sizeof(*feature_limits));
+	if (!feature_limits) {
+		return -1;
+	}
+
+	if (ast_bridge_features_limits_construct(feature_limits)) {
+		return -1;
+	}
+
+	copy_bridge_features_limits(feature_limits, limits);
+	features->limits = feature_limits;
+
+/* BUGBUG feature interval hooks need to be reimplemented to be more stand alone. */
+	if (ast_bridge_interval_hook(features, feature_limits->duration,
+		bridge_features_duration_callback, feature_limits, NULL, remove_on_pull)) {
+		ast_log(LOG_ERROR, "Failed to schedule the duration limiter to the bridge channel.\n");
+		return -1;
+	}
+
+	feature_limits->quitting_time = ast_tvadd(ast_tvnow(), ast_samp2tv(feature_limits->duration, 1000));
+
+	if (!ast_strlen_zero(feature_limits->connect_sound)) {
+		if (ast_bridge_interval_hook(features, 1,
+			bridge_features_connect_callback, feature_limits, NULL, remove_on_pull)) {
+			ast_log(LOG_WARNING, "Failed to schedule connect sound to the bridge channel.\n");
+		}
+	}
+
+	if (feature_limits->warning && feature_limits->warning < feature_limits->duration) {
+		if (ast_bridge_interval_hook(features, feature_limits->duration - feature_limits->warning,
+			bridge_features_warning_callback, feature_limits, NULL, remove_on_pull)) {
+			ast_log(LOG_WARNING, "Failed to schedule warning sound playback to the bridge channel.\n");
+		}
+	}
+
+	return 0;
+}
+
+static int unload_module(void)
+{
+	return 0;
+}
+
+static int load_module(void)
+{
+	ast_bridge_interval_register(AST_BRIDGE_BUILTIN_INTERVAL_LIMITS, bridge_builtin_set_limits);
+
+	/* Bump up our reference count so we can't be unloaded. */
+	ast_module_ref(ast_module_info->self);
+
+	return AST_MODULE_LOAD_SUCCESS;
+}
+
+AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Built in bridging interval features");