granicus.if.org Git - apache/blob - server/mpm/experimental/event/fdqueue.h

   1 /* Copyright 2001-2006 The Apache Software Foundation or its licensors, as
   2  * applicable.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 /**
  18  * @file  event/fdqueue.h
  19  * @brief fd queue declarations
  20  *
  21  * @addtogroup APACHE_MPM_EVENT
  22  * @{
  23  */
  24
  25 #ifndef FDQUEUE_H
  26 #define FDQUEUE_H
  27 #include "httpd.h"
  28 #include <stdlib.h>
  29 #if APR_HAVE_UNISTD_H
  30 #include <unistd.h>
  31 #endif
  32 #include <apr_thread_mutex.h>
  33 #include <apr_thread_cond.h>
  34 #include <sys/types.h>
  35 #if APR_HAVE_SYS_SOCKET_H
  36 #include <sys/socket.h>
  37 #endif
  38 #include <apr_errno.h>
  39
  40 typedef struct fd_queue_info_t fd_queue_info_t;
  41
  42 apr_status_t ap_queue_info_create(fd_queue_info_t ** queue_info,
  43                                   apr_pool_t * pool, int max_idlers);
  44 apr_status_t ap_queue_info_set_idle(fd_queue_info_t * queue_info,
  45                                     apr_pool_t * pool_to_recycle);
  46 apr_status_t ap_queue_info_wait_for_idler(fd_queue_info_t * queue_info);
  47 apr_status_t ap_queue_info_term(fd_queue_info_t * queue_info);
  48
  49 struct fd_queue_elem_t
  50 {
  51     apr_socket_t *sd;
  52     apr_pool_t *p;
  53     conn_state_t *cs;
  54 };
  55 typedef struct fd_queue_elem_t fd_queue_elem_t;
  56
  57 struct fd_queue_t
  58 {
  59     fd_queue_elem_t *data;
  60     int nelts;
  61     int bounds;
  62     apr_thread_mutex_t *one_big_mutex;
  63     apr_thread_cond_t *not_empty;
  64     int terminated;
  65 };
  66 typedef struct fd_queue_t fd_queue_t;
  67
  68 void ap_pop_pool(apr_pool_t ** recycled_pool, fd_queue_info_t * queue_info);
  69 void ap_push_pool(fd_queue_info_t * queue_info,
  70                                     apr_pool_t * pool_to_recycle);
  71
  72 apr_status_t ap_queue_init(fd_queue_t * queue, int queue_capacity,
  73                            apr_pool_t * a);
  74 apr_status_t ap_queue_push(fd_queue_t * queue, apr_socket_t * sd,
  75                            conn_state_t * cs, apr_pool_t * p);
  76 apr_status_t ap_queue_pop(fd_queue_t * queue, apr_socket_t ** sd,
  77                           conn_state_t ** cs, apr_pool_t ** p);
  78 apr_status_t ap_queue_interrupt_all(fd_queue_t * queue);
  79 apr_status_t ap_queue_term(fd_queue_t * queue);
  80
  81 #endif /* FDQUEUE_H */
  82 /** @} */