1d8ca40c41
alpha/include/lock.h: remove nop simplelock macros, which are defined in <sys/lock.h> if NCPUS == 1. As a result, NULL_SIMPLELOCK is defined, and a few warnings removed.
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/*
|
|
* Copyright (c) 1997, by Steve Passe
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. The name of the developer may NOT be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $Id: lock.h,v 1.3 1998/07/22 08:28:24 dfr Exp $
|
|
*/
|
|
|
|
|
|
#ifndef _MACHINE_LOCK_H_
|
|
#define _MACHINE_LOCK_H_
|
|
|
|
|
|
/*
|
|
* Simple spin lock.
|
|
* It is an error to hold one of these locks while a process is sleeping.
|
|
*/
|
|
struct simplelock {
|
|
volatile int lock_data;
|
|
};
|
|
|
|
#define COM_LOCK()
|
|
#define COM_UNLOCK()
|
|
|
|
#endif /* !_MACHINE_LOCK_H_ */
|