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Code Issues Releases Wiki Activity

Fix for S_FREE_LOCK.

This commit is contained in:
Bruce Momjian 1997-09-24 23:37:26 +00:00
parent d77a506307
commit ebb3008dbd
1 changed files with 19 additions and 5 deletions
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24
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 1.5 1997/09/22 18:14:25 momjian Exp $
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.6 1997/09/24 23:37:26 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -55,6 +55,8 @@
#define S_INIT_LOCK(lock) mutex_init(lock)
#define S_LOCK_FREE(lock) ((*lock) == 0)
/* S_LOCK_FREE should return 1 if lock is free; 0 if lock is locked */
/* For Mach, we have to delve inside the entrails of `struct mutex'. Ick! */
#define S_LOCK_FREE(alock) ((alock)->lock == 0)
@ -133,6 +135,8 @@ static int tas(slock_t *lock);
#define S_INIT_LOCK(lock) S_UNLOCK(lock)
#define S_LOCK_FREE(lock) ((*lock) == 0)
#endif /* i86pc_solaris || sparc_solaris */
/*
@ -154,6 +158,8 @@ static int tas(slock_t *lock);
#define S_INIT_LOCK(lock) S_UNLOCK(lock)
#define S_LOCK_FREE(lock) ((*lock) == 0)
#endif /* aix */
/*
@ -205,6 +211,8 @@ static int tas(slock_t *lock);
#define S_INIT_LOCK(lock) S_UNLOCK(lock)
#define S_LOCK_FREE(lock) ((*lock) == 0)
static int
tas_dummy()
{
@ -287,6 +295,8 @@ tas_dummy()
#define S_INIT_LOCK(addr) (*(addr) = 0)
#define S_LOCK_FREE(lock) ((*lock) == 0)
#endif /* NEED_SPARC_TAS_ASM */
/*
@ -308,6 +318,8 @@ tas_dummy()
#define S_INIT_LOCK(lock) S_UNLOCK(lock)
#define S_LOCK_FREE(lock) ((*lock) == 0)
#endif /* NEED_I386_TAS_ASM */
@ -339,6 +351,8 @@ tas_dummy()
#define S_INIT_LOCK(lock) S_UNLOCK(lock)
#define S_LOCK_FREE(lock) ((*lock) == 0)
#endif /* defined(__alpha__) && defined(linux) */
#if defined(linux) && defined(sparc)
@ -358,6 +372,8 @@ tas_dummy()
#define S_INIT_LOCK(lock) S_UNLOCK(lock)
#define S_LOCK_FREE(lock) ((*lock) == 0)
#endif /* defined(linux) && defined(sparc) */
#if defined(linux) && defined(PPC)
@ -391,12 +407,10 @@ success: \n\
#define S_INIT_LOCK(lock) S_UNLOCK(lock)
#endif /* defined(linux) && defined(PPC) */
#else /* HAS_TEST_AND_SET */
#define S_LOCK_FREE(lock) ((*lock) == 0)
#endif /* defined(linux) && defined(PPC) */
#endif /* HAS_TEST_AND_SET */
#endif /* S_LOCK_H */