platform_bionic/libc/include/sys/shm.h
zijunzhao 969d6c129a Nullability check for shm module.
Bugs: b/245972273
Test: adb shell
Change-Id: I9bdd5727719311d063fa126fc286618e9d24a45b
2023-05-23 19:15:25 +00:00

58 lines
2.2 KiB
C

/*
* Copyright (C) 2016 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#pragma once
/**
* @file sys/shm.h
* @brief System V shared memory. Not useful on Android because it's disallowed by SELinux.
*/
#include <sys/cdefs.h>
#include <sys/ipc.h>
#include <sys/types.h>
#include <linux/shm.h>
#define shmid_ds shmid64_ds
#define SHMLBA 4096
__BEGIN_DECLS
typedef unsigned long shmatt_t;
/** Not useful on Android; disallowed by SELinux. */
void* _Nonnull shmat(int __shm_id, const void* _Nullable __addr, int __flags) __INTRODUCED_IN(26);
/** Not useful on Android; disallowed by SELinux. */
int shmctl(int __shm_id, int __cmd, struct shmid_ds* _Nullable __buf) __INTRODUCED_IN(26);
/** Not useful on Android; disallowed by SELinux. */
int shmdt(const void* _Nonnull __addr) __INTRODUCED_IN(26);
/** Not useful on Android; disallowed by SELinux. */
int shmget(key_t __key, size_t __size, int __flags) __INTRODUCED_IN(26);
__END_DECLS