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windows-add-tid-to-mutex-20050827

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Add to mutex objects the ID of the thread that holds the lock.  This
will make future debugging much easier.
This commit is contained in:
Jeffrey Altman 2005-08-28 04:32:44 +00:00
parent 6620b9452b
commit c0fea63408
2 changed files with 4 additions and 0 deletions
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3
src/WINNT/client_osi/osibasel.c
View File

@ -192,6 +192,7 @@ void lock_ObtainMutex(struct osi_mutex *lockp)
/* if we're here, all clear to set the lock */
lockp->flags |= OSI_LOCKFLAG_EXCL;
}
lockp->tid = thrd_Current();
LeaveCriticalSection(csp);
}
@ -212,6 +213,7 @@ void lock_ReleaseMutex(struct osi_mutex *lockp)
osi_assertx(lockp->flags & OSI_LOCKFLAG_EXCL, "mutex not held");
lockp->flags &= ~OSI_LOCKFLAG_EXCL;
lockp->tid = 0;
if (!osi_TEmpty(&lockp->d.turn)) {
osi_TSignalForMLs(&lockp->d.turn, 0, csp);
}
@ -411,6 +413,7 @@ void lock_InitializeMutex(osi_mutex_t *mp, char *namep)
*/
mp->type = 0;
mp->flags = 0;
mp->tid = 0;
mp->atomicIndex = osi_MUTEXHASH(mp);
osi_TInit(&mp->d.turn);
return;

1
src/WINNT/client_osi/osibasel.h
View File

@ -31,6 +31,7 @@ typedef struct osi_mutex {
char type; /* for all types; type 0 uses atomic count */
char flags; /* flags for base type */
unsigned short atomicIndex; /* index of lock for low-level sync */
thread_t tid; /* tid of thread that owns the lock */
unsigned short waiters; /* waiters */
unsigned short pad;
union {