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7 | 7 | * |
8 | 8 | * |
9 | 9 | * IDENTIFICATION |
10 | | - * $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.46 1998/09/11 16:56:20 momjian Exp $ |
| 10 | + * $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.47 1998/09/12 16:07:53 momjian Exp $ |
11 | 11 | * |
12 | 12 | *------------------------------------------------------------------------- |
13 | 13 | */ |
@@ -266,10 +266,11 @@ static const slock_t clear_lock = |
266 | 266 | * assembly from his NECEWS SVR4 port, but we probably ought to retain this |
267 | 267 | * for the R3000 chips out there. |
268 | 268 | */ |
269 | | -#defineTAS(lock)(!acquire_lock(lock)) |
270 | | -#defineS_UNLOCK(lock)release_lock(lock) |
271 | | -#defineS_INIT_LOCK(lock)init_lock(lock) |
272 | | -#defineS_LOCK_FREE(lock)(stat_lock(lock) == UNLOCKED) |
| 269 | +#include<mutex.h> |
| 270 | +#defineTAS(lock)(test_and_set(lock,1)) |
| 271 | +#defineS_UNLOCK(lock)(test_then_and(lock,0)) |
| 272 | +#defineS_INIT_LOCK(lock)(test_then_and(lock,0)) |
| 273 | +#defineS_LOCK_FREE(lock)(test_then_add(lock,0) == 0) |
273 | 274 | #endif/* __sgi */ |
274 | 275 |
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275 | 276 |
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