Improve runghc's argument handling

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

diff --git a/rts/RaiseAsync.c b/rts/RaiseAsync.c
index d555953..d892e95 100644 (file)
--- a/rts/RaiseAsync.c
+++ b/rts/RaiseAsync.c
@@ -496,9 +496,11 @@ throwToReleaseTarget (void *tso)
    queue, but not perform any throwTo() immediately.  This might be
    more appropriate when the target thread is the one actually running
    (see Exception.cmm).
    queue, but not perform any throwTo() immediately.  This might be
    more appropriate when the target thread is the one actually running
    (see Exception.cmm).

+
+   Returns: non-zero if an exception was raised, zero otherwise.

    -------------------------------------------------------------------------- */
 
    -------------------------------------------------------------------------- */
 

-void
+int

 maybePerformBlockedException (Capability *cap, StgTSO *tso)
 {
     StgTSO *source;
 maybePerformBlockedException (Capability *cap, StgTSO *tso)
 {
     StgTSO *source;

@@ -514,7 +516,7 @@ maybePerformBlockedException (Capability *cap, StgTSO *tso)
        // locked it.
        if (tso->blocked_exceptions == END_TSO_QUEUE) {
            unlockTSO(tso);
        // locked it.
        if (tso->blocked_exceptions == END_TSO_QUEUE) {
            unlockTSO(tso);

-           return;
+           return 0;

        }
 
        // We unblock just the first thread on the queue, and perform
        }
 
        // We unblock just the first thread on the queue, and perform

@@ -524,7 +526,9 @@ maybePerformBlockedException (Capability *cap, StgTSO *tso)
        tso->blocked_exceptions = unblockOne_(cap, source, 
                                              rtsFalse/*no migrate*/);
        unlockTSO(tso);
        tso->blocked_exceptions = unblockOne_(cap, source, 
                                              rtsFalse/*no migrate*/);
        unlockTSO(tso);

+        return 1;

     }
     }

+    return 0;

 }
 
 void
 }
 
 void