X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2Fwin32%2FThrIOManager.c;h=e2310ef9f383f08554fefa57109ba43d3d31eb48;hb=a26e1e3310f4c92196fe6b4d407f72f3c6824132;hp=76747c2376dc44b2caa8e980741f6ca3b92a90bf;hpb=150cc9e2e4657cc58bd7ec4c15e5cb72f2e1c0f6;p=ghc-hetmet.git

diff --git a/rts/win32/ThrIOManager.c b/rts/win32/ThrIOManager.c
index 76747c2..e2310ef 100644
--- a/rts/win32/ThrIOManager.c
+++ b/rts/win32/ThrIOManager.c
@@ -67,8 +67,8 @@ readIOManagerEvent (void)
 #if defined(THREADED_RTS)
     HsWord32 res;
 
-    ACQUIRE_LOCK(&event_buf_mutex);
     if (io_manager_event != INVALID_HANDLE_VALUE) {
+        ACQUIRE_LOCK(&event_buf_mutex);
         if (next_event == 0) {
             res = 0; // no event to return
         } else {
@@ -80,10 +80,10 @@ readIOManagerEvent (void)
                 }
             }
         }
+        RELEASE_LOCK(&event_buf_mutex);
     } else {
         res = 0;
     }
-    RELEASE_LOCK(&event_buf_mutex);
     // debugBelch("readIOManagerEvent: %d\n", res);
     return res;
 #else
@@ -96,8 +96,8 @@ sendIOManagerEvent (HsWord32 event)
 {
 #if defined(THREADED_RTS)
     // debugBelch("sendIOManagerEvent: %d\n", event);
-    ACQUIRE_LOCK(&event_buf_mutex);
     if (io_manager_event != INVALID_HANDLE_VALUE) {
+        ACQUIRE_LOCK(&event_buf_mutex);
         if (next_event == EVENT_BUFSIZ) {
             errorBelch("event buffer overflowed; event dropped");
         } else {
@@ -107,8 +107,8 @@ sendIOManagerEvent (HsWord32 event)
             }        
             event_buf[next_event++] = (StgWord32)event;
         }
+        RELEASE_LOCK(&event_buf_mutex);
     }
-    RELEASE_LOCK(&event_buf_mutex);
 #endif
 }    
 
@@ -137,7 +137,11 @@ ioManagerStart (void)
     Capability *cap;
     if (io_manager_event == INVALID_HANDLE_VALUE) {
 	cap = rts_lock();
+#if defined(mingw32_HOST_OS) && defined(__PIC__)
+	rts_evalIO(cap,_imp__base_GHCziConc_ensureIOManagerIsRunning_closure,NULL);
+#else
 	rts_evalIO(cap,&base_GHCziConc_ensureIOManagerIsRunning_closure,NULL);
+#endif
 	rts_unlock(cap);
     }
 }