| David 'Digit' Turner | 6304d8b | 2010-06-02 18:12:12 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in |
| 12 | * the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 16 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 17 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 18 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 19 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 21 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 22 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 23 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 25 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | */ |
| 28 | #ifndef _BIONIC_FUTEX_H |
| 29 | #define _BIONIC_FUTEX_H |
| 30 | |
| 31 | #include <linux/futex.h> |
| Elliott Hughes | 36fa67b | 2013-06-05 17:51:20 -0700 | [diff] [blame^] | 32 | #include <sys/cdefs.h> |
| David 'Digit' Turner | 6304d8b | 2010-06-02 18:12:12 -0700 | [diff] [blame] | 33 | |
| Elliott Hughes | 3e89847 | 2013-02-12 16:40:24 +0000 | [diff] [blame] | 34 | __BEGIN_DECLS |
| 35 | |
| David 'Digit' Turner | 6304d8b | 2010-06-02 18:12:12 -0700 | [diff] [blame] | 36 | extern int __futex_wait(volatile void *ftx, int val, const struct timespec *timeout); |
| 37 | extern int __futex_wake(volatile void *ftx, int count); |
| 38 | |
| 39 | extern int __futex_syscall3(volatile void *ftx, int op, int val); |
| 40 | extern int __futex_syscall4(volatile void *ftx, int op, int val, const struct timespec *timeout); |
| 41 | |
| 42 | #ifndef FUTEX_PRIVATE_FLAG |
| 43 | #define FUTEX_PRIVATE_FLAG 128 |
| 44 | #endif |
| 45 | |
| 46 | #ifndef FUTEX_WAIT_PRIVATE |
| 47 | #define FUTEX_WAIT_PRIVATE (FUTEX_WAIT|FUTEX_PRIVATE_FLAG) |
| 48 | #endif |
| 49 | |
| 50 | #ifndef FUTEX_WAKE_PRIVATE |
| 51 | #define FUTEX_WAKE_PRIVATE (FUTEX_WAKE|FUTEX_PRIVATE_FLAG) |
| 52 | #endif |
| 53 | |
| 54 | /* Like __futex_wait/wake, but take an additionnal 'pshared' argument. |
| 55 | * when non-0, this will use normal futexes. Otherwise, private futexes. |
| 56 | */ |
| 57 | extern int __futex_wake_ex(volatile void *ftx, int pshared, int val); |
| 58 | extern int __futex_wait_ex(volatile void *ftx, int pshared, int val, const struct timespec *timeout); |
| 59 | |
| Elliott Hughes | 3e89847 | 2013-02-12 16:40:24 +0000 | [diff] [blame] | 60 | __END_DECLS |
| 61 | |
| David 'Digit' Turner | 6304d8b | 2010-06-02 18:12:12 -0700 | [diff] [blame] | 62 | #endif /* _BIONIC_FUTEX_H */ |