X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FTimer.c;h=4b13be45565115ed4fbad0994d811803470e2b2f;hb=47936fa626f195b057de16b35c0e6ca40666fc62;hp=0bfea2d6fd9236224c1bec0e359874a9f497d2e1;hpb=0065d5ab628975892cea1ec7303f968c3338cbe1;p=ghc-hetmet.git

diff --git a/rts/Timer.c b/rts/Timer.c
index 0bfea2d..4b13be4 100644
--- a/rts/Timer.c
+++ b/rts/Timer.c
@@ -21,6 +21,7 @@
 #include "Timer.h"
 #include "Ticker.h"
 #include "Capability.h"
+#include "RtsSignals.h"
 
 /* ticks left before next pre-emptive context switch */
 static int ticks_to_ctxt_switch = 0;
@@ -71,12 +72,19 @@ handle_tick(int unused STG_UNUSED)
 	  blackholes_need_checking = rtsTrue;
 	  /* hack: re-use the blackholes_need_checking flag */
 	  
+#if !defined(mingw32_HOST_OS)
+	  // This forces the IO Manager thread to wakeup, which will
+	  // in turn ensure that some OS thread wakes up and runs the
+	  // scheduler loop, which will cause a GC and deadlock check.
+	  ioManagerWakeup();
+#else
 	  /* ToDo: this doesn't work.  Can't invoke
 	   * pthread_cond_signal from a signal handler.
 	   * Furthermore, we can't prod a capability that we
 	   * might be holding.  What can we do?
 	   */
 	  prodOneCapability();
+#endif
       }
       break;
   default: