apc_futex.h

   1 /*
   2   +----------------------------------------------------------------------+
   3   | APC                                                                  |
   4   +----------------------------------------------------------------------+
   5   | Copyright (c) 2008 The PHP Group                                     |
   6   +----------------------------------------------------------------------+
   7   | This source file is subject to version 3.01 of the PHP license,      |
   8   | that is bundled with this package in the file LICENSE, and is        |
   9   | available through the world-wide-web at the following url:           |
  10   | http://www.php.net/license/3_01.txt                                  |
  11   | If you did not receive a copy of the PHP license and are unable to   |
  12   | obtain it through the world-wide-web, please send a note to          |
  13   | license@php.net so we can mail you a copy immediately.               |
  14   +----------------------------------------------------------------------+
  15   | Authors: Brian Shire <shire@php.net>                                 |
  16   +----------------------------------------------------------------------+
  17
  18  */
  19
  20 /* $Id: apc_futex.h,v 3.2.2.1 2008/05/11 18:57:00 rasmus Exp $ */
  21
  22 #ifndef APC_FUTEX_H
  23 #define APC_FUTEX_H
  24
  25 #include "apc.h"
  26
  27 #ifdef APC_FUTEX_LOCKS
  28
  29 #include <asm/types.h>
  30 #include <unistd.h>
  31 #include <linux/futex.h>
  32
  33 #include "arch/atomic.h"
  34
  35 #define sys_futex(futex, op, val, timeout) syscall(SYS_futex, futex, op, val, timeout)
  36 #define apc_futex_wait(val, oldval) sys_futex((void*)val, FUTEX_WAIT, oldval, NULL)
  37 #define apc_futex_wake(val, count) sys_futex((void*)val, FUTEX_WAKE, count, NULL)
  38
  39 int apc_futex_create();
  40 void apc_futex_destroy(volatile int* lock);
  41 void apc_futex_lock(volatile int* lock);
  42 void apc_futex_unlock(volatile int* lock);
  43
  44 #endif
  45
  46 #endif
  47
  48 /*
  49  * Local variables:
  50  * tab-width: 4
  51  * c-basic-offset: 4
  52  * End:
  53  * vim600: expandtab sw=4 ts=4 sts=4 fdm=marker
  54  * vim<600: expandtab sw=4 ts=4 sts=4
  55  */