mesa/src/util/futex.h

58 lines
1.8 KiB
C

/*
* Copyright © 2015 Intel
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef UTIL_FUTEX_H
#define UTIL_FUTEX_H
#if defined(HAVE_LINUX_FUTEX_H)
#define UTIL_FUTEX_SUPPORTED 1
#elif defined(__FreeBSD__)
#define UTIL_FUTEX_SUPPORTED 1
#elif defined(__OpenBSD__)
#define UTIL_FUTEX_SUPPORTED 1
#elif defined(_WIN32) && !defined(WINDOWS_NO_FUTEX)
#define UTIL_FUTEX_SUPPORTED 1
#else
#define UTIL_FUTEX_SUPPORTED 0
#endif
#if UTIL_FUTEX_SUPPORTED
#include <stdint.h>
#include <c11/time.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if UTIL_FUTEX_SUPPORTED
int futex_wake(uint32_t *addr, int count);
int futex_wait(uint32_t *addr, int32_t value, const struct timespec *timeout);
#endif
#ifdef __cplusplus
}
#endif
#endif /* UTIL_FUTEX_H */