1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
21 #include "apr_private.h"
22 #include "apr_general.h"
25 #include "apr_pools.h"
26 #include "apr_file_io.h"
27 #include "apr_network_io.h"
28 #include "apr_portable.h"
30 #ifdef HAVE_SYS_MMAN_H
36 #ifdef HAVE_SYS_MUTEX_H
37 #include <sys/mutex.h>
48 #ifdef HAVE_SYS_FILE_H
52 /* Not all systems seem to have MAP_FAILED defined, but it should always
53 * just be (void *)-1. */
55 #define MAP_FAILED ((void *)-1)
60 void *base; /* base real address */
61 void *usable; /* base usable address */
62 apr_size_t reqsize; /* requested segment size */
63 apr_size_t realsize; /* actual segment size */
64 const char *filename; /* NULL if anonymous */
65 #if APR_USE_SHMEM_SHMGET || APR_USE_SHMEM_SHMGET_ANON
66 int shmid; /* shmem ID returned from shmget() */