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_trywait.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'sem_trywait.c')

diff --git a/sem_trywait.c b/sem_trywait.c
index 342ee06..253c10e 100644
--- a/sem_trywait.c
+++ b/sem_trywait.c
@@ -92,8 +92,9 @@ sem_trywait (sem_t * sem)
     {
       result = EINVAL;
     }
-  else if (WaitForSingleObject ((*sem)->sem, 0) == WAIT_TIMEOUT)
+  else if (InterlockedDecrement((LPLONG) &(*sem)->value) < 0)
     {
+      (void) InterlockedIncrement((LPLONG) &(*sem)->value);
       result = EAGAIN;
     }
 
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