Don't look at all the threads before each GC.

[ghc-hetmet.git] / rts / sm / Storage.c

diff --git a/rts/sm/Storage.c b/rts/sm/Storage.c
index 6f4a415..702c246 100644 (file)
--- a/rts/sm/Storage.c
+++ b/rts/sm/Storage.c
@@ -1,6 +1,6 @@
 /* -----------------------------------------------------------------------------
  *
- * (c) The GHC Team, 1998-2006
+ * (c) The GHC Team, 1998-2008
  *
  * Storage manager front end
  *
@@ -30,7 +30,6 @@
 #include "OSMem.h"
 #include "Trace.h"
 #include "GC.h"
-#include "GCUtils.h"
 #include "Evac.h"
 
 #include <stdlib.h>
@@ -102,6 +101,8 @@ initStep (step *stp, int g, int s)
     initSpinLock(&stp->sync_todo);
     initSpinLock(&stp->sync_large_objects);
 #endif
+    stp->threads = END_TSO_QUEUE;
+    stp->old_threads = END_TSO_QUEUE;
 }
 
 void
@@ -166,6 +167,7 @@ initStorage( void )
     gen->no = g;
     gen->mut_list = allocBlock();
     gen->collections = 0;
+    gen->par_collections = 0;
     gen->failed_promotions = 0;
     gen->max_blocks = 0;
   }
@@ -822,6 +824,35 @@ dirty_MUT_VAR(StgRegTable *reg, StgClosure *p)
     }
 }
 
+// Setting a TSO's link field with a write barrier.
+// It is *not* necessary to call this function when
+//    * setting the link field to END_TSO_QUEUE
+//    * putting a TSO on the blackhole_queue
+//    * setting the link field of the currently running TSO, as it
+//      will already be dirty.
+void
+setTSOLink (Capability *cap, StgTSO *tso, StgTSO *target)
+{
+    bdescr *bd;
+    if ((tso->flags & (TSO_DIRTY|TSO_LINK_DIRTY)) == 0) {
+        tso->flags |= TSO_LINK_DIRTY;
+       bd = Bdescr((StgPtr)tso);
+       if (bd->gen_no > 0) recordMutableCap((StgClosure*)tso,cap,bd->gen_no);
+    }
+    tso->_link = target;
+}
+
+void
+dirty_TSO (Capability *cap, StgTSO *tso)
+{
+    bdescr *bd;
+    if ((tso->flags & (TSO_DIRTY|TSO_LINK_DIRTY)) == 0) {
+       bd = Bdescr((StgPtr)tso);
+       if (bd->gen_no > 0) recordMutableCap((StgClosure*)tso,cap,bd->gen_no);
+    }
+    tso->flags |= TSO_DIRTY;
+}
+
 /*
    This is the write barrier for MVARs.  An MVAR_CLEAN objects is not
    on the mutable list; a MVAR_DIRTY is.  When written to, a