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Irix lock fix from Robert Bruccoleri

This commit is contained in:
Bruce Momjian 1998-09-12 16:07:53 +00:00
parent 786b1802c8
commit 6ee06b0fd3
1 changed files with 6 additions and 5 deletions
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11
src/include/storage/s_lock.h
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.46 1998/09/11 16:56:20 momjian Exp $
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.47 1998/09/12 16:07:53 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -266,10 +266,11 @@ static const slock_t clear_lock =
* assembly from his NECEWS SVR4 port, but we probably ought to retain this
* for the R3000 chips out there.
*/
#define TAS(lock) (!acquire_lock(lock))
#define S_UNLOCK(lock) release_lock(lock)
#define S_INIT_LOCK(lock) init_lock(lock)
#define S_LOCK_FREE(lock) (stat_lock(lock) == UNLOCKED)
#include <mutex.h>
#define TAS(lock) (test_and_set(lock,1))
#define S_UNLOCK(lock) (test_then_and(lock,0))
#define S_INIT_LOCK(lock) (test_then_and(lock,0))
#define S_LOCK_FREE(lock) (test_then_add(lock,0) == 0)
#endif /* __sgi */