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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2013, Digium, Inc.
*
* David M. Lee, II <dlee@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 Stasis application command support.
*
* \author David M. Lee, II <dlee@digium.com>
*/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "command.h"
#include "asterisk/lock.h"
#include "asterisk/stasis_app_impl.h"
struct stasis_app_command {
ast_mutex_t lock;
ast_cond_t condition;
stasis_app_command_cb callback;
void *data;
int retval;
int is_done:1;
};
static void command_dtor(void *obj)
{
struct stasis_app_command *command = obj;
ast_mutex_destroy(&command->lock);
ast_cond_destroy(&command->condition);
}
struct stasis_app_command *command_create(
stasis_app_command_cb callback, void *data)
{
RAII_VAR(struct stasis_app_command *, command, NULL, ao2_cleanup);
command = ao2_alloc(sizeof(*command), command_dtor);
if (!command) {
return NULL;
}
ast_mutex_init(&command->lock);
ast_cond_init(&command->condition, 0);
command->callback = callback;
command->data = data;
ao2_ref(command, +1);
return command;
}
void command_complete(struct stasis_app_command *command, int retval)
{
SCOPED_MUTEX(lock, &command->lock);
command->is_done = 1;
command->retval = retval;
ast_cond_signal(&command->condition);
}
int command_join(struct stasis_app_command *command)
{
SCOPED_MUTEX(lock, &command->lock);
while (!command->is_done) {
ast_cond_wait(&command->condition, &command->lock);
}
return command->retval;
}
void command_invoke(struct stasis_app_command *command,
struct stasis_app_control *control, struct ast_channel *chan)
{
int retval = command->callback(control, chan, command->data);
command_complete(command, retval);
}
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