diff options
Diffstat (limited to 'src/interfaces/libpq/fe-connect.c')
| -rw-r--r-- | src/interfaces/libpq/fe-connect.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c index 89130a0f17b..ef503811228 100644 --- a/src/interfaces/libpq/fe-connect.c +++ b/src/interfaces/libpq/fe-connect.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.277 2004/07/12 14:16:28 momjian Exp $ + * $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.278 2004/07/12 14:23:28 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -3193,10 +3193,16 @@ default_threadlock(int acquire) #ifndef WIN32 static pthread_mutex_t singlethread_lock = PTHREAD_MUTEX_INITIALIZER; #else - static pthread_mutex_t singlethread_lock; - static long mutex_initialized = 0; - if (!InterlockedExchange(&mutex_initialized, 1L)) - pthread_mutex_init(&singlethread_lock, NULL); + static pthread_mutex_t singlethread_lock = NULL; + static long mutex_initlock = 0; + + if (singlethread_lock == NULL) { + while(InterlockedExchange(&mutex_initlock, 1) == 1) + /* loop, another thread own the lock */ ; + if (singlethread_lock == NULL) + pthread_mutex_init(&singlethread_lock, NULL); + InterlockedExchange(&mutex_initlock,0); + } #endif if (acquire) pthread_mutex_lock(&singlethread_lock); |