[project @ 1999-06-25 09:16:46 by simonmar]

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

diff --git a/ghc/rts/Signals.c b/ghc/rts/Signals.c
index 6d9ea44..0953c3c 100644 (file)
--- a/ghc/rts/Signals.c
+++ b/ghc/rts/Signals.c
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: Signals.c,v 1.4 1999/02/05 16:02:54 simonm Exp $
+ * $Id: Signals.c,v 1.6 1999/06/25 09:16:46 simonmar Exp $
  *
  * (c) The GHC Team, 1998-1999
  *
@@ -9,11 +9,14 @@
 
 #include "Rts.h"
 #include "SchedAPI.h"
+#include "Schedule.h"
 #include "Signals.h"
 #include "RtsUtils.h"
 #include "RtsFlags.h"
 #include "StablePriv.h"
 
+#ifndef mingw32_TARGET_OS
+
 #ifndef PAR
 
 static StgInt *handlers = NULL; /* Dynamically grown array of signal handlers */
@@ -71,7 +74,7 @@ generic_handler(int sig)
        either.  However, we have to schedule a new thread somehow.
 
        It's probably ok to request a context switch and allow the
-       scheduler to  start the handler thread, but how to we
+       scheduler to  start the handler thread, but how do we
        communicate this to the scheduler?
 
        We need some kind of locking, but with low overhead (i.e. no
@@ -106,6 +109,8 @@ generic_handler(int sig)
     sigemptyset(&signals);
     sigaddset(&signals, sig);
     sigprocmask(SIG_UNBLOCK, &signals, NULL);
+
+    context_switch = 1;
 }
 
 /* -----------------------------------------------------------------------------
@@ -167,11 +172,13 @@ sig_install(StgInt sig, StgInt spi, StgStablePtr handler, sigset_t *mask)
        sigdelset(&userSignals, sig);
         action.sa_handler = SIG_DFL;
        break;
+
     case STG_SIG_HAN:
        handlers[sig] = (I_)handler;
        sigaddset(&userSignals, sig);
        action.sa_handler = generic_handler;
        break;
+
     default:
         barf("sig_install: bad spi");
     }
@@ -237,3 +244,5 @@ start_signal_handlers(void)
 {
 }
 #endif
+
+#endif /*! mingw32_TARGET_OS */