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Inline frequently called functions.

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This commit is contained in:
Bruce Momjian
1997-09-18 14:21:02 +00:00
parent bbe2c10c14
commit 8cb4154492
16 changed files with 1098 additions and 793 deletions
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91
src/backend/storage/ipc/ipc.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipc.c,v 1.14 1997/09/08 21:46:59 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipc.c,v 1.15 1997/09/18 14:20:14 momjian Exp $
*
* NOTES
*
@@ -33,6 +33,7 @@
#include "postgres.h"
#include "storage/ipc.h"
#include "storage/s_lock.h"
/* In Ultrix, sem.h and shm.h must be included AFTER ipc.h */
#include <sys/sem.h>
#include <sys/shm.h>
@@ -615,7 +616,10 @@ IpcMemoryKill(IpcMemoryKey memKey)
* supply of locks.
* ------------------
*/
static SLock *SLockArray = NULL;
/* used in spin.c */
SLock *SLockArray = NULL;
static SLock **FreeSLockPP;
static int *UnusedSLockIP;
static slock_t *SLockMemoryLock;
@@ -676,92 +680,13 @@ AttachSLockMemory(IPCKey key)
return;
}
#ifdef LOCKDEBUG
#define PRINT_LOCK(LOCK) printf("(locklock = %d, flag = %d, nshlocks = %d, \
shlock = %d, exlock =%d)\n", LOCK->locklock, \
LOCK->flag, LOCK->nshlocks, LOCK->shlock, \
LOCK->exlock)
#endif
void
ExclusiveLock(int lockid)
{
SLock *slckP;
slckP = &(SLockArray[lockid]);
#ifdef LOCKDEBUG
printf("ExclusiveLock(%d)\n", lockid);
printf("IN: ");
PRINT_LOCK(slckP);
#endif
ex_try_again:
S_LOCK(&(slckP->locklock));
switch (slckP->flag)
{
case NOLOCK:
slckP->flag = EXCLUSIVELOCK;
S_LOCK(&(slckP->exlock));
S_LOCK(&(slckP->shlock));
S_UNLOCK(&(slckP->locklock));
#ifdef LOCKDEBUG
printf("OUT: ");
PRINT_LOCK(slckP);
#endif
return;
case SHAREDLOCK:
case EXCLUSIVELOCK:
S_UNLOCK(&(slckP->locklock));
S_LOCK(&(slckP->exlock));
S_UNLOCK(&(slckP->exlock));
goto ex_try_again;
}
}
void
ExclusiveUnlock(int lockid)
{
SLock *slckP;
slckP = &(SLockArray[lockid]);
#ifdef LOCKDEBUG
printf("ExclusiveUnlock(%d)\n", lockid);
printf("IN: ");
PRINT_LOCK(slckP);
#endif
S_LOCK(&(slckP->locklock));
/* -------------
* give favor to read processes
* -------------
*/
slckP->flag = NOLOCK;
if (slckP->nshlocks > 0)
{
while (slckP->nshlocks > 0)
{
S_UNLOCK(&(slckP->shlock));
S_LOCK(&(slckP->comlock));
}
S_UNLOCK(&(slckP->shlock));
}
else
{
S_UNLOCK(&(slckP->shlock));
}
S_UNLOCK(&(slckP->exlock));
S_UNLOCK(&(slckP->locklock));
#ifdef LOCKDEBUG
printf("OUT: ");
PRINT_LOCK(slckP);
#endif
return;
}
#ifdef NOT_USED
bool
LockIsFree(int lockid)
{
return (SLockArray[lockid].flag == NOLOCK);
}
#endif
#endif /* HAS_TEST_AND_SET */