6304d8b218
Change-Id: I534e36a7171cd37037ae03b910ba71ea6968286d Note: previously, sem_init() would return an error if pshared != 0.
57 lines
2.3 KiB
C
57 lines
2.3 KiB
C
/*
|
|
* Copyright (C) 2008 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 _BIONIC_FUTEX_H
|
|
#define _BIONIC_FUTEX_H
|
|
|
|
#include <linux/futex.h>
|
|
|
|
extern int __futex_wait(volatile void *ftx, int val, const struct timespec *timeout);
|
|
extern int __futex_wake(volatile void *ftx, int count);
|
|
|
|
extern int __futex_syscall3(volatile void *ftx, int op, int val);
|
|
extern int __futex_syscall4(volatile void *ftx, int op, int val, const struct timespec *timeout);
|
|
|
|
#ifndef FUTEX_PRIVATE_FLAG
|
|
#define FUTEX_PRIVATE_FLAG 128
|
|
#endif
|
|
|
|
#ifndef FUTEX_WAIT_PRIVATE
|
|
#define FUTEX_WAIT_PRIVATE (FUTEX_WAIT|FUTEX_PRIVATE_FLAG)
|
|
#endif
|
|
|
|
#ifndef FUTEX_WAKE_PRIVATE
|
|
#define FUTEX_WAKE_PRIVATE (FUTEX_WAKE|FUTEX_PRIVATE_FLAG)
|
|
#endif
|
|
|
|
/* Like __futex_wait/wake, but take an additionnal 'pshared' argument.
|
|
* when non-0, this will use normal futexes. Otherwise, private futexes.
|
|
*/
|
|
extern int __futex_wake_ex(volatile void *ftx, int pshared, int val);
|
|
extern int __futex_wait_ex(volatile void *ftx, int pshared, int val, const struct timespec *timeout);
|
|
|
|
#endif /* _BIONIC_FUTEX_H */
|