From 6cc7c5984bbee93daecfb811d98fda5213a9be2f Mon Sep 17 00:00:00 2001
From: "heikki@hundin.mysql.fi" <>
Date: Sun, 8 Sep 2002 00:21:13 +0300
Subject: [PATCH] os0sync.c:   Add diagnostics to track why a semaphore
 creation failed on Windows ME

---
 innobase/os/os0sync.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/innobase/os/os0sync.c b/innobase/os/os0sync.c
index c1345de0d55..14677ede20f 100644
--- a/innobase/os/os0sync.c
+++ b/innobase/os/os0sync.c
@@ -49,6 +49,12 @@ os_event_create(
 			TRUE,		/* Manual reset */
 			FALSE,		/* Initial state nonsignaled */
 			name);
+	if (!event) {
+	        fprintf(stderr,
+"InnoDB: Could not create a Windows event semaphore; Windows error %lu\n",
+		  (ulint)GetLastError());
+	}
+
 	ut_a(event);
 
 	return(event);