From 8c8bcc5d1737002a9d153105c16b262d2e201efa Mon Sep 17 00:00:00 2001
From: rpj <rpj>
Date: Tue, 19 Oct 2004 13:24:40 +0000
Subject: Semaphore speedups - alpha, but passes testsuite

---
 sem_wait.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'sem_wait.c')

diff --git a/sem_wait.c b/sem_wait.c
index e2e171c..0c2ed59 100644
--- a/sem_wait.c
+++ b/sem_wait.c
@@ -92,8 +92,14 @@ sem_wait (sem_t * sem)
 
 #else /* NEED_SEM */
 
-      result = pthreadCancelableWait ((*sem)->sem);
-
+      sem_t s = *sem;
+
+      if (InterlockedDecrement((LPLONG) &s->value) < 0)
+	{
+	  /* Must wait */
+	  result = pthreadCancelableWait (s->sem);
+	}
+     
 #endif /* NEED_SEM */
 
     }
-- 
cgit v1.2.3