X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FTimer.c;h=9822239b334bf79b147318bdb84e96a64691c37a;hb=f5edc6b0871a0debbc9a64f4cdb95c0dc35e5b16;hp=8088600246e761c591829979ed2635cba437b242;hpb=ab0e778ccfde61aed4c22679b24d175fc6cc9bf3;p=ghc-hetmet.git

diff --git a/rts/Timer.c b/rts/Timer.c
index 8088600..9822239 100644
--- a/rts/Timer.c
+++ b/rts/Timer.c
@@ -42,9 +42,7 @@ static
 void
 handle_tick(int unused STG_UNUSED)
 {
-#ifdef PROFILING
   handleProfTick();
-#endif
   if (RtsFlags.ConcFlags.ctxtSwitchTicks > 0) {
       ticks_to_ctxt_switch--;
       if (ticks_to_ctxt_switch <= 0) {
@@ -66,15 +64,21 @@ handle_tick(int unused STG_UNUSED)
                     RtsFlags.MiscFlags.tickInterval;
       break;
   case ACTIVITY_MAYBE_NO:
-      if (ticks_to_gc == 0) break; /* 0 ==> no idle GC */
-      ticks_to_gc--;
       if (ticks_to_gc == 0) {
-	  ticks_to_gc = RtsFlags.GcFlags.idleGCDelayTime /
-                        RtsFlags.MiscFlags.tickInterval;
-	  recent_activity = ACTIVITY_INACTIVE;
-	  blackholes_need_checking = rtsTrue;
-	  /* hack: re-use the blackholes_need_checking flag */
-	  wakeUpRts();
+          /* 0 ==> no idle GC */
+          recent_activity = ACTIVITY_DONE_GC;
+          // disable timer signals (see #1623)
+          stopTimer();
+      } else {
+          ticks_to_gc--;
+          if (ticks_to_gc == 0) {
+              ticks_to_gc = RtsFlags.GcFlags.idleGCDelayTime /
+                  RtsFlags.MiscFlags.tickInterval;
+              recent_activity = ACTIVITY_INACTIVE;
+              blackholes_need_checking = rtsTrue;
+              /* hack: re-use the blackholes_need_checking flag */
+              wakeUpRts();
+          }
       }
       break;
   default:
@@ -83,18 +87,35 @@ handle_tick(int unused STG_UNUSED)
 #endif
 }
 
-int
-startTimer(void)
+void
+initTimer(void)
 {
-#ifdef PROFILING
-  initProfTimer();
-#endif
+    initProfTimer();
+    if (RtsFlags.MiscFlags.tickInterval != 0) {
+        initTicker(RtsFlags.MiscFlags.tickInterval, handle_tick);
+    }
+}
 
-  return startTicker(RtsFlags.MiscFlags.tickInterval, handle_tick);
+void
+startTimer(void)
+{
+    if (RtsFlags.MiscFlags.tickInterval != 0) {
+        startTicker();
+    }
 }
 
-int
+void
 stopTimer(void)
 {
-  return stopTicker();
+    if (RtsFlags.MiscFlags.tickInterval != 0) {
+        stopTicker();
+    }
+}
+
+void
+exitTimer(void)
+{
+    if (RtsFlags.MiscFlags.tickInterval != 0) {
+        exitTicker();
+    }
 }