From d73d6da23e77d5b7a803209319ad2709f03505a9 Mon Sep 17 00:00:00 2001
From: Rickard Green <rickard@erlang.org>
Date: Mon, 4 Feb 2013 14:18:53 +0100
Subject: Fix flush of fd-driver on Windows

---
 erts/emulator/sys/win32/sys.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'erts/emulator/sys/win32/sys.c')

diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index 307ca4866f..133cfd3549 100755
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -916,6 +916,8 @@ init_async_io(DriverData *dp, AsyncIo* aio, int use_threads)
     if (aio->ov.hEvent == NULL)
 	return -1;
     if (use_threads) {
+	OV_BUFFER_PTR(aio) = NULL;
+	OV_NUM_TO_READ(aio) = 0;
 	aio->ioAllowed = CreateAutoEvent(FALSE);
 	if (aio->ioAllowed == NULL)
 	    return -1;
@@ -2330,6 +2332,7 @@ static void fd_stop(ErlDrvData data)
       (void) driver_select(dp->port_num,
 			   (ErlDrvEvent)dp->out.ov.hEvent,
 			   ERL_DRV_WRITE, 0);
+      ASSERT(dp->out.flushEvent);
       SetEvent(dp->out.flushEvent);
       WaitForSingleObject(dp->out.flushReplyEvent, INFINITE);
   }    
-- 
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