1251875Speter/* Licensed to the Apache Software Foundation (ASF) under one or more
2251875Speter * contributor license agreements.  See the NOTICE file distributed with
3251875Speter * this work for additional information regarding copyright ownership.
4251875Speter * The ASF licenses this file to You under the Apache License, Version 2.0
5251875Speter * (the "License"); you may not use this file except in compliance with
6251875Speter * the License.  You may obtain a copy of the License at
7251875Speter *
8251875Speter *     http://www.apache.org/licenses/LICENSE-2.0
9251875Speter *
10251875Speter * Unless required by applicable law or agreed to in writing, software
11251875Speter * distributed under the License is distributed on an "AS IS" BASIS,
12251875Speter * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13251875Speter * See the License for the specific language governing permissions and
14251875Speter * limitations under the License.
15251875Speter */
16251875Speter
17251875Speter#ifndef SHM_H
18251875Speter#define SHM_H
19251875Speter
20251875Speter#include "apr.h"
21251875Speter#include "apr_private.h"
22251875Speter#include "apr_general.h"
23251875Speter#include "apr_lib.h"
24251875Speter#include "apr_shm.h"
25251875Speter#include "apr_pools.h"
26251875Speter#include "apr_file_io.h"
27251875Speter#include "apr_network_io.h"
28251875Speter#include "apr_portable.h"
29251875Speter
30251875Speter#if APR_HAVE_UNISTD_H
31251875Speter#include <unistd.h>
32251875Speter#endif
33251875Speter#ifdef HAVE_SYS_MMAN_H
34251875Speter#include <sys/mman.h>
35251875Speter#endif
36251875Speter#ifdef HAVE_SYS_IPC_H
37251875Speter#include <sys/ipc.h>
38251875Speter#endif
39251875Speter#ifdef HAVE_SYS_MUTEX_H
40251875Speter#include <sys/mutex.h>
41251875Speter#endif
42251875Speter#ifdef HAVE_SYS_SHM_H
43251875Speter#include <sys/shm.h>
44251875Speter#endif
45251875Speter#if !defined(SHM_R)
46251875Speter#define SHM_R 0400
47251875Speter#endif
48251875Speter#if !defined(SHM_W)
49251875Speter#define SHM_W 0200
50251875Speter#endif
51251875Speter#ifdef HAVE_SYS_FILE_H
52251875Speter#include <sys/file.h>
53251875Speter#endif
54251875Speter
55251875Speter/* Not all systems seem to have MAP_FAILED defined, but it should always
56251875Speter * just be (void *)-1. */
57251875Speter#ifndef MAP_FAILED
58251875Speter#define MAP_FAILED ((void *)-1)
59251875Speter#endif
60251875Speter
61251875Speterstruct apr_shm_t {
62251875Speter    apr_pool_t *pool;
63251875Speter    void *base;          /* base real address */
64251875Speter    void *usable;        /* base usable address */
65251875Speter    apr_size_t reqsize;  /* requested segment size */
66251875Speter    apr_size_t realsize; /* actual segment size */
67251875Speter    const char *filename;      /* NULL if anonymous */
68251875Speter#if APR_USE_SHMEM_SHMGET || APR_USE_SHMEM_SHMGET_ANON
69251875Speter    int shmid;          /* shmem ID returned from shmget() */
70362181Sdim    key_t shmkey;       /* shmem key IPC_ANON or returned from ftok() */
71251875Speter#endif
72251875Speter};
73251875Speter
74251875Speter#endif /* SHM_H */
75