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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/**
* @file event/fdqueue.h
* @brief fd queue declarations
*
* @addtogroup APACHE_MPM_EVENT
* @{
*/
#ifndef FDQUEUE_H
#define FDQUEUE_H
#include "httpd.h"
#include <stdlib.h>
#if APR_HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <apr_thread_mutex.h>
#include <apr_thread_cond.h>
#include <sys/types.h>
#if APR_HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#include <apr_errno.h>
#include "ap_mpm.h"
typedef struct fd_queue_info_t fd_queue_info_t;
typedef struct event_conn_state_t event_conn_state_t;
apr_status_t ap_queue_info_create(fd_queue_info_t ** queue_info,
apr_pool_t * pool, int max_idlers,
int max_recycled_pools);
apr_status_t ap_queue_info_set_idle(fd_queue_info_t * queue_info,
apr_pool_t * pool_to_recycle);
apr_status_t ap_queue_info_try_get_idler(fd_queue_info_t * queue_info);
apr_status_t ap_queue_info_wait_for_idler(fd_queue_info_t * queue_info,
int *had_to_block);
apr_status_t ap_queue_info_term(fd_queue_info_t * queue_info);
apr_uint32_t ap_queue_info_get_idlers(fd_queue_info_t * queue_info);
void ap_free_idle_pools(fd_queue_info_t *queue_info);
struct fd_queue_elem_t
{
apr_socket_t *sd;
apr_pool_t *p;
event_conn_state_t *ecs;
};
typedef struct fd_queue_elem_t fd_queue_elem_t;
typedef struct timer_event_t timer_event_t;
struct timer_event_t
{
APR_RING_ENTRY(timer_event_t) link;
apr_time_t when;
ap_mpm_callback_fn_t *cbfunc;
void *baton;
int canceled;
apr_array_header_t *remove;
};
struct fd_queue_t
{
APR_RING_HEAD(timers_t, timer_event_t) timers;
fd_queue_elem_t *data;
unsigned int nelts;
unsigned int bounds;
unsigned int in;
unsigned int out;
apr_thread_mutex_t *one_big_mutex;
apr_thread_cond_t *not_empty;
int terminated;
};
typedef struct fd_queue_t fd_queue_t;
void ap_pop_pool(apr_pool_t ** recycled_pool, fd_queue_info_t * queue_info);
void ap_push_pool(fd_queue_info_t * queue_info,
apr_pool_t * pool_to_recycle);
apr_status_t ap_queue_init(fd_queue_t * queue, int queue_capacity,
apr_pool_t * a);
apr_status_t ap_queue_push(fd_queue_t * queue, apr_socket_t * sd,
event_conn_state_t * ecs, apr_pool_t * p);
apr_status_t ap_queue_push_timer(fd_queue_t *queue, timer_event_t *te);
apr_status_t ap_queue_pop_something(fd_queue_t * queue, apr_socket_t ** sd,
event_conn_state_t ** ecs, apr_pool_t ** p,
timer_event_t ** te);
apr_status_t ap_queue_interrupt_all(fd_queue_t * queue);
apr_status_t ap_queue_interrupt_one(fd_queue_t * queue);
apr_status_t ap_queue_term(fd_queue_t * queue);
#endif /* FDQUEUE_H */
/** @} */
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