diff options
Diffstat (limited to 'src/backend/storage/ipc/sinval.c')
| -rw-r--r-- | src/backend/storage/ipc/sinval.c | 43 |
1 files changed, 7 insertions, 36 deletions
diff --git a/src/backend/storage/ipc/sinval.c b/src/backend/storage/ipc/sinval.c index fb2e4804dd3..c87fcd36602 100644 --- a/src/backend/storage/ipc/sinval.c +++ b/src/backend/storage/ipc/sinval.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/storage/ipc/sinval.c,v 1.23 2000/11/12 20:51:51 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/storage/ipc/sinval.c,v 1.24 2000/11/28 23:27:56 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -27,52 +27,23 @@ SPINLOCK SInvalLock = (SPINLOCK) NULL; /****************************************************************************/ -/* CreateSharedInvalidationState() Create a buffer segment */ +/* CreateSharedInvalidationState() Initialize SI buffer */ /* */ /* should be called only by the POSTMASTER */ /****************************************************************************/ void -CreateSharedInvalidationState(IPCKey key, int maxBackends) +CreateSharedInvalidationState(int maxBackends) { - int status; - - /* SInvalLock gets set in spin.c, during spinlock init */ - status = SISegmentInit(true, IPCKeyGetSIBufferMemoryBlock(key), - maxBackends); - - if (status == -1) - elog(FATAL, "CreateSharedInvalidationState: failed segment init"); -} - -/****************************************************************************/ -/* AttachSharedInvalidationState(key) Attach to existing buffer segment */ -/* */ -/* should be called by each backend during startup */ -/****************************************************************************/ -void -AttachSharedInvalidationState(IPCKey key) -{ - int status; - - if (key == PrivateIPCKey) - { - CreateSharedInvalidationState(key, 16); - return; - } - /* SInvalLock gets set in spin.c, during spinlock init */ - status = SISegmentInit(false, IPCKeyGetSIBufferMemoryBlock(key), 0); - - if (status == -1) - elog(FATAL, "AttachSharedInvalidationState: failed segment init"); + /* SInvalLock must be initialized already, during spinlock init */ + SIBufferInit(maxBackends); } /* - * InitSharedInvalidationState + * InitBackendSharedInvalidationState * Initialize new backend's state info in buffer segment. - * Must be called after AttachSharedInvalidationState(). */ void -InitSharedInvalidationState(void) +InitBackendSharedInvalidationState(void) { SpinAcquire(SInvalLock); if (!SIBackendInit(shmInvalBuffer)) |