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cb17448b56
* server/mpm_fdqueue.c (queue_interrupt): noop and return APR_EOF when queue is terminated already. * server/mpm_fdqueue.h (struct fd_queue_t): make "terminated" volatile. Follow up to r1891716. Github: closes #208 git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1891724 13f79535-47bb-0310-9956-ffa450edef68
111 lines
4.2 KiB
C
111 lines
4.2 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file server/mpm_fdqueue.h
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* @brief fd queue declarations
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*
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* @addtogroup APACHE_MPM_EVENT
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* @{
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*/
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#ifndef MPM_FDQUEUE_H
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#define MPM_FDQUEUE_H
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#include <apr.h>
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/* This code is not AP_DECLARE()ed/exported, and used by MPMs event/worker
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* only (for now), not worth thinking about w/o threads either...
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*/
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#if APR_HAS_THREADS
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#include "ap_mpm.h"
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#include <apr_ring.h>
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#include <apr_pools.h>
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#include <apr_thread_mutex.h>
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#include <apr_thread_cond.h>
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#include <apr_network_io.h>
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struct fd_queue_info_t; /* opaque */
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struct fd_queue_elem_t; /* opaque */
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typedef struct fd_queue_info_t fd_queue_info_t;
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typedef struct fd_queue_elem_t fd_queue_elem_t;
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AP_DECLARE(apr_status_t) ap_queue_info_create(fd_queue_info_t **queue_info,
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apr_pool_t *pool, int max_idlers,
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int max_recycled_pools);
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AP_DECLARE(apr_status_t) ap_queue_info_set_idle(fd_queue_info_t *queue_info,
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apr_pool_t *pool_to_recycle);
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AP_DECLARE(apr_status_t) ap_queue_info_try_get_idler(fd_queue_info_t *queue_info);
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AP_DECLARE(apr_status_t) ap_queue_info_wait_for_idler(fd_queue_info_t *queue_info,
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int *had_to_block);
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AP_DECLARE(apr_uint32_t) ap_queue_info_num_idlers(fd_queue_info_t *queue_info);
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AP_DECLARE(apr_status_t) ap_queue_info_term(fd_queue_info_t *queue_info);
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AP_DECLARE(void) ap_queue_info_pop_pool(fd_queue_info_t *queue_info,
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apr_pool_t **recycled_pool);
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AP_DECLARE(void) ap_queue_info_push_pool(fd_queue_info_t *queue_info,
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apr_pool_t *pool_to_recycle);
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AP_DECLARE(void) ap_queue_info_free_idle_pools(fd_queue_info_t *queue_info);
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struct timer_event_t
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{
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APR_RING_ENTRY(timer_event_t) link;
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apr_time_t when;
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ap_mpm_callback_fn_t *cbfunc;
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void *baton;
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int canceled;
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apr_array_header_t *pfds;
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};
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typedef struct timer_event_t timer_event_t;
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struct fd_queue_t
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{
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APR_RING_HEAD(timers_t, timer_event_t) timers;
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fd_queue_elem_t *data;
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unsigned int nelts;
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unsigned int bounds;
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unsigned int in;
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unsigned int out;
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apr_thread_mutex_t *one_big_mutex;
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apr_thread_cond_t *not_empty;
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volatile int terminated;
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};
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typedef struct fd_queue_t fd_queue_t;
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AP_DECLARE(apr_status_t) ap_queue_create(fd_queue_t **pqueue,
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int capacity, apr_pool_t *p);
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AP_DECLARE(apr_status_t) ap_queue_push_socket(fd_queue_t *queue,
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apr_socket_t *sd, void *sd_baton,
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apr_pool_t *p);
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AP_DECLARE(apr_status_t) ap_queue_push_timer(fd_queue_t *queue,
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timer_event_t *te);
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AP_DECLARE(apr_status_t) ap_queue_pop_something(fd_queue_t *queue,
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apr_socket_t **sd, void **sd_baton,
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apr_pool_t **p, timer_event_t **te);
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#define ap_queue_pop_socket(q_, s_, p_) \
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ap_queue_pop_something((q_), (s_), NULL, (p_), NULL)
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AP_DECLARE(apr_status_t) ap_queue_interrupt_all(fd_queue_t *queue);
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AP_DECLARE(apr_status_t) ap_queue_interrupt_one(fd_queue_t *queue);
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AP_DECLARE(apr_status_t) ap_queue_term(fd_queue_t *queue);
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#endif /* APR_HAS_THREADS */
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#endif /* MPM_FDQUEUE_H */
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/** @} */
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