[project @ 2003-12-16 13:19:01 by simonmar]

[ghc-hetmet.git] / ghc / rts / Task.c

diff --git a/ghc/rts/Task.c b/ghc/rts/Task.c
index bc701b0..6579abc 100644 (file)
--- a/ghc/rts/Task.c
+++ b/ghc/rts/Task.c
@@ -134,6 +134,12 @@ stopTaskManager ()
   return;
 }
 
+void
+resetTaskManagerAfterFork ()
+{
+       barf("resetTaskManagerAfterFork not implemented for SMP");
+}
+
 #else
 /************ THREADS version *****************/
 
@@ -157,15 +163,14 @@ startTask ( void (*taskStart)(void) )
   OSThreadId tid;
   
   /* If more than one worker thread is known to be blocked waiting
-     on thread_ready_cond, signal it rather than creating a new one.
+     on thread_ready_cond, don't create a new one.
   */
   if ( rts_n_waiting_tasks > 0) {
     IF_DEBUG(scheduler,fprintf(stderr,
                               "scheduler: startTask: %d tasks waiting, not creating new one.\n", 
                               rts_n_waiting_tasks););
-    signalCondition(&thread_ready_cond);
-    /* Not needed, but gives more 'interesting' thread schedules when testing */
-    yieldThread();
+    // the task will run as soon as a capability is available,
+    // so there's no need to wake it.
     return;
   }
 
@@ -193,6 +198,13 @@ stopTaskManager ()
 {
 
 }
+
+void
+resetTaskManagerAfterFork ( void )
+{
+       rts_n_waiting_tasks = 0;
+       taskCount = 0;
+}
 #endif