osfmk/kern/spl.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 #ifndef _KERN_SPL_H_
  23 #define _KERN_SPL_H_
  24
  25 typedef unsigned spl_t;
  26
  27 #define splhigh()       (spl_t) ml_set_interrupts_enabled(FALSE)
  28 #define splsched()      (spl_t) ml_set_interrupts_enabled(FALSE)
  29 #define splclock()      (spl_t) ml_set_interrupts_enabled(FALSE)
  30 #define splx(x)         (void) ml_set_interrupts_enabled(x)
  31 #define spllo()         (void) ml_set_interrupts_enabled(TRUE)
  32
  33 #endif  /* _KERN_SPL_H_ */