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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2009, Digium, Inc.
*
* Mark Michelson <mmichelson@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 "smart" channels
*
* \author Mark Michelson <mmichelson@digium.com>
*/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/autochan.h"
#include "asterisk/utils.h"
#include "asterisk/linkedlists.h"
#include "asterisk/options.h"
#include "asterisk/channel.h"
struct ast_autochan *ast_autochan_setup(struct ast_channel *chan)
{
struct ast_autochan *autochan;
if (!chan) {
return NULL;
}
if (!(autochan = ast_calloc(1, sizeof(*autochan)))) {
return NULL;
}
autochan->chan = ast_channel_ref(chan);
ast_channel_lock(autochan->chan);
AST_LIST_INSERT_TAIL(&autochan->chan->autochans, autochan, list);
ast_channel_unlock(autochan->chan);
ast_debug(1, "Created autochan %p to hold channel %s (%p)\n", autochan, chan->name, chan);
return autochan;
}
void ast_autochan_destroy(struct ast_autochan *autochan)
{
struct ast_autochan *autochan_iter;
ast_channel_lock(autochan->chan);
AST_LIST_TRAVERSE_SAFE_BEGIN(&autochan->chan->autochans, autochan_iter, list) {
if (autochan_iter == autochan) {
AST_LIST_REMOVE_CURRENT(list);
ast_debug(1, "Removed autochan %p from the list, about to free it\n", autochan);
break;
}
}
AST_LIST_TRAVERSE_SAFE_END;
ast_channel_unlock(autochan->chan);
autochan->chan = ast_channel_unref(autochan->chan);
ast_free(autochan);
}
void ast_autochan_new_channel(struct ast_channel *old_chan, struct ast_channel *new_chan)
{
struct ast_autochan *autochan;
AST_LIST_APPEND_LIST(&new_chan->autochans, &old_chan->autochans, list);
AST_LIST_TRAVERSE(&new_chan->autochans, autochan, list) {
if (autochan->chan == old_chan) {
autochan->chan = ast_channel_unref(old_chan);
autochan->chan = ast_channel_ref(new_chan);
ast_debug(1, "Autochan %p used to hold channel %s (%p) but now holds channel %s (%p)\n",
autochan, old_chan->name, old_chan, new_chan->name, new_chan);
}
}
}
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