freeswitch/libs/unimrcp/libs/apr-toolkit/src/apt_task_msg.c

104 lines
2.9 KiB
C

/*
* Copyright 2008 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.
*/
#include <stdlib.h>
#include "apt_task_msg.h"
/** Abstract pool of task messages to allocate task messages from */
struct apt_task_msg_pool_t {
void (*destroy)(apt_task_msg_pool_t *pool);
apt_task_msg_t* (*acquire_msg)(apt_task_msg_pool_t *pool);
void (*release_msg)(apt_task_msg_t *task_msg);
void *obj;
apr_pool_t *pool;
};
/** Dynamic allocation of messages (no actual pool exist)*/
typedef struct apt_msg_pool_dynamic_t apt_msg_pool_dynamic_t;
struct apt_msg_pool_dynamic_t {
apr_size_t size;
};
static apt_task_msg_t* dynamic_pool_acquire_msg(apt_task_msg_pool_t *task_msg_pool)
{
apt_msg_pool_dynamic_t *dynamic_pool = task_msg_pool->obj;
apt_task_msg_t *task_msg = malloc(dynamic_pool->size);
task_msg->msg_pool = task_msg_pool;
task_msg->type = TASK_MSG_USER;
task_msg->sub_type = 0;
return task_msg;
}
static void dynamic_pool_release_msg(apt_task_msg_t *task_msg)
{
if(task_msg) {
free(task_msg);
}
}
static void dynamic_pool_destroy(apt_task_msg_pool_t *task_msg_pool)
{
/* nothing to do */
}
APT_DECLARE(apt_task_msg_pool_t*) apt_task_msg_pool_create_dynamic(apr_size_t msg_size, apr_pool_t *pool)
{
apt_task_msg_pool_t *task_msg_pool = apr_palloc(pool,sizeof(apt_task_msg_pool_t));
apt_msg_pool_dynamic_t *dynamic_pool = apr_palloc(pool,sizeof(apt_msg_pool_dynamic_t));
dynamic_pool->size = msg_size + sizeof(apt_task_msg_t) - 1;
task_msg_pool->pool = pool;
task_msg_pool->obj = dynamic_pool;
task_msg_pool->acquire_msg = dynamic_pool_acquire_msg;
task_msg_pool->release_msg = dynamic_pool_release_msg;
task_msg_pool->destroy = dynamic_pool_destroy;
return task_msg_pool;
}
/** Static allocation of messages from message pool (not implemented yet) */
APT_DECLARE(apt_task_msg_pool_t*) apt_task_msg_pool_create_static(apr_size_t msg_size, apr_size_t pool_size, apr_pool_t *pool)
{
return NULL;
}
APT_DECLARE(void) apt_task_msg_pool_destroy(apt_task_msg_pool_t *msg_pool)
{
if(msg_pool->destroy) {
msg_pool->destroy(msg_pool);
}
}
APT_DECLARE(apt_task_msg_t*) apt_task_msg_acquire(apt_task_msg_pool_t *task_msg_pool)
{
if(!task_msg_pool->acquire_msg)
return NULL;
return task_msg_pool->acquire_msg(task_msg_pool);
}
APT_DECLARE(void) apt_task_msg_release(apt_task_msg_t *task_msg)
{
apt_task_msg_pool_t *task_msg_pool = task_msg->msg_pool;
if(task_msg_pool->release_msg)
task_msg_pool->release_msg(task_msg);
}