1  /*
 2   * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
 3   *
 4   * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 5   *
 6   * This file contains Original Code and/or Modifications of Original Code
 7   * as defined in and that are subject to the Apple Public Source License
 8   * Version 2.0 (the 'License'). You may not use this file except in
 9   * compliance with the License. The rights granted to you under the License
10   * may not be used to create, or enable the creation or redistribution of,
11   * unlawful or unlicensed copies of an Apple operating system, or to
12   * circumvent, violate, or enable the circumvention or violation of, any
13   * terms of an Apple operating system software license agreement.
14   *
15   * Please obtain a copy of the License at
16   * http://www.opensource.apple.com/apsl/ and read it before using this file.
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18   * The Original Code and all software distributed under the License are
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20   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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27   */
28  #ifndef _KERN_SPL_H_
29  #define _KERN_SPL_H_
30  
31  #include <machine/machine_routines.h>
32  
33  typedef unsigned spl_t;
34  
35  #define splhigh()       (spl_t) ml_set_interrupts_enabled(FALSE)
36  #define splsched()      (spl_t) ml_set_interrupts_enabled(FALSE)
37  #define splclock()      (spl_t) ml_set_interrupts_enabled(FALSE)
38  #define splx(x)         (void) ml_set_interrupts_enabled(x)
39  #define spllo()         (void) ml_set_interrupts_enabled(TRUE)
40  
41  #endif  /* _KERN_SPL_H_ */