freeswitch/libs/unimrcp/libs/apr-toolkit/include/apt_poller_task.h

123 lines
3.4 KiB
C

/*
* Copyright 2008-2010 Arsen Chaloyan
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* $Id: apt_poller_task.h 1708 2010-05-24 17:03:25Z achaloyan $
*/
#ifndef APT_POLLER_TASK_H
#define APT_POLLER_TASK_H
/**
* @file apt_poller_task.h
* @brief Poller Task
*/
#include "apt_pollset.h"
#include "apt_task.h"
#include "apt_timer_queue.h"
APT_BEGIN_EXTERN_C
/** Opaque poller task declaration */
typedef struct apt_poller_task_t apt_poller_task_t;
/** Function prototype to handle signalled descripors */
typedef apt_bool_t (*apt_poll_signal_f)(void *obj, const apr_pollfd_t *descriptor);
/**
* Create poller task.
* @param max_pollset_size the maximum number of descriptors pollset can hold
* @param signal_handler the handler of signalled descriptors
* @param obj the external object to pass to callback
* @param msg_pool the pool of task messages
* @param pool the pool to allocate memory from
*/
APT_DECLARE(apt_poller_task_t*) apt_poller_task_create(
apr_size_t max_pollset_size,
apt_poll_signal_f signal_handler,
void *obj,
apt_task_msg_pool_t *msg_pool,
apr_pool_t *pool);
/**
* Destroy poller task.
* @param task the task to destroy
*/
APT_DECLARE(apt_bool_t) apt_poller_task_destroy(apt_poller_task_t *task);
/**
* Cleanup poller task.
* @param task the task to cleanup
*
* @remark This function should be considered in protected scope.
* It will be called on task destroy unless you override the behavior.
*/
APT_DECLARE(void) apt_poller_task_cleanup(apt_poller_task_t *task);
/**
* Start poller task and wait for incoming messages.
* @param task the task to start
*/
APT_DECLARE(apt_bool_t) apt_poller_task_start(apt_poller_task_t *task);
/**
* Terminate poller task.
* @param task the task to terminate
*/
APT_DECLARE(apt_bool_t) apt_poller_task_terminate(apt_poller_task_t *task);
/**
* Get task base.
* @param task the poller task to get task base from
*/
APT_DECLARE(apt_task_t*) apt_poller_task_base_get(const apt_poller_task_t *task);
/**
* Get task vtable.
* @param task the poller task to get vtable from
*/
APT_DECLARE(apt_task_vtable_t*) apt_poller_task_vtable_get(apt_poller_task_t *task);
/**
* Get external object.
* @param task the poller task to get object from
*/
APT_DECLARE(void*) apt_poller_task_object_get(const apt_poller_task_t *task);
/**
* Get pollset.
* @param task the poller task to get pollset from
*/
APT_DECLARE(apt_pollset_t*) apt_poller_task_pollset_get(const apt_poller_task_t *task);
/**
* Create timer.
* @param task the poller task to create timer in the scope of
* @param proc the timer callback
* @param obj the object to pass to callback
* @param pool the pool to allocate memory from
*/
APT_DECLARE(apt_timer_t*) apt_poller_task_timer_create(
apt_poller_task_t *task,
apt_timer_proc_f proc,
void *obj,
apr_pool_t *pool);
APT_END_EXTERN_C
#endif /* APT_POLLER_TASK_H */