platform_bionic/libc/include/sys/sem.h
zijunzhao 271d4d2515 Nullability check for sem module.
Bugs: b/245972273
Test: adb shell
Change-Id: Ie29aa34c449300c53591557c99b6ec08ebe3efcf
2023-04-21 21:34:11 +00:00

64 lines
2.2 KiB
C

/*
* Copyright (C) 2014 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.
*/
#ifndef _SYS_SEM_H_
#define _SYS_SEM_H_
#include <sys/cdefs.h>
#include <sys/ipc.h>
#include <sys/types.h>
#if defined(__USE_GNU)
#include <bits/timespec.h>
#endif
#include <linux/sem.h>
__BEGIN_DECLS
#define semid_ds semid64_ds
union semun {
int val;
struct semid_ds* _Nullable buf;
unsigned short* _Nullable array;
struct seminfo* _Nullable __buf;
void* _Nullable __pad;
};
int semctl(int __sem_id, int __sem_num, int __cmd, ...) __INTRODUCED_IN(26);
int semget(key_t __key, int __sem_count, int __flags) __INTRODUCED_IN(26);
int semop(int __sem_id, struct sembuf* _Nonnull __ops, size_t __op_count) __INTRODUCED_IN(26);
#if defined(__USE_GNU)
int semtimedop(int __sem_id, struct sembuf* _Nonnull __ops, size_t __op_count, const struct timespec* _Nullable __timeout) __INTRODUCED_IN(26);
#endif
__END_DECLS
#endif