Massive patch for the first months work adding System FC to GHC #35

[ghc-hetmet.git] / rts / win32 / AsyncIO.c

diff --git a/rts/win32/AsyncIO.c b/rts/win32/AsyncIO.c
index 2ff92d9..d471ee8 100644 (file)
--- a/rts/win32/AsyncIO.c
+++ b/rts/win32/AsyncIO.c
@@ -45,8 +45,8 @@ typedef struct CompletedReq {
 #define MAX_REQUESTS 200
 
 static CRITICAL_SECTION queue_lock;
-static HANDLE           completed_req_event;
-static HANDLE           abandon_req_wait;
+static HANDLE           completed_req_event = INVALID_HANDLE_VALUE;
+static HANDLE           abandon_req_wait = INVALID_HANDLE_VALUE;
 static HANDLE           wait_handles[2];
 static CompletedReq     completedTable[MAX_REQUESTS];
 static int              completed_hw;
@@ -173,8 +173,19 @@ startupAsyncIO()
 void
 shutdownAsyncIO()
 {
-    CloseHandle(completed_req_event);
     ShutdownIOManager();
+    if (completed_req_event != INVALID_HANDLE_VALUE) {
+        CloseHandle(completed_req_event);
+       completed_req_event = INVALID_HANDLE_VALUE;
+    }
+    if (abandon_req_wait != INVALID_HANDLE_VALUE) {
+        CloseHandle(abandon_req_wait);
+       abandon_req_wait = INVALID_HANDLE_VALUE;
+    }
+    if (completed_table_sema != NULL) {
+        CloseHandle(completed_table_sema);
+       completed_table_sema = NULL;
+    }
 }
 
 /*