Reorganisation of the source tree

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

diff --git a/ghc/rts/Weak.c b/ghc/rts/Weak.c
deleted file mode 100644 (file)
index f010395..0000000
--- a/ghc/rts/Weak.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/* -----------------------------------------------------------------------------
- *
- * (c) The GHC Team, 1998-1999
- *
- * Weak pointers / finalizers
- *
- * ---------------------------------------------------------------------------*/
-
-#include "PosixSource.h"
-#define COMPILING_RTS_MAIN
-#include "Rts.h"
-#include "RtsUtils.h"
-#include "SchedAPI.h"
-#include "RtsFlags.h"
-#include "Weak.h"
-#include "Storage.h"
-#include "Schedule.h"
-#include "Prelude.h"
-#include "RtsAPI.h"
-
-StgWeak *weak_ptr_list;
-
-/*
- * scheduleFinalizers() is called on the list of weak pointers found
- * to be dead after a garbage collection.  It overwrites each object
- * with DEAD_WEAK, and creates a new thread to run the pending finalizers.
- *
- * This function is called just after GC.  The weak pointers on the
- * argument list are those whose keys were found to be not reachable,
- * however the value and finalizer fields have by now been marked live.
- * The weak pointer object itself may not be alive - i.e. we may be
- * looking at either an object in from-space or one in to-space.  It
- * doesn't really matter either way.
- *
- * Pre-condition: sched_mutex _not_ held.
- */
-
-void
-scheduleFinalizers(Capability *cap, StgWeak *list)
-{
-    StgWeak *w;
-    StgTSO *t;
-    StgMutArrPtrs *arr;
-    nat n;
-
-    // count number of finalizers, and kill all the weak pointers first...
-    n = 0;
-    for (w = list; w; w = w->link) { 
-
-       // Better not be a DEAD_WEAK at this stage; the garbage
-       // collector removes DEAD_WEAKs from the weak pointer list.
-       ASSERT(w->header.info != &stg_DEAD_WEAK_info);
-
-       if (w->finalizer != &stg_NO_FINALIZER_closure) {
-           n++;
-       }
-
-#ifdef PROFILING
-        // A weak pointer is inherently used, so we do not need to call
-        // LDV_recordDead().
-       //
-        // Furthermore, when PROFILING is turned on, dead weak
-        // pointers are exactly as large as weak pointers, so there is
-        // no need to fill the slop, either.  See stg_DEAD_WEAK_info
-        // in StgMiscClosures.hc.
-#endif
-       SET_HDR(w, &stg_DEAD_WEAK_info, w->header.prof.ccs);
-    }
-       
-    // No finalizers to run?
-    if (n == 0) return;
-
-    IF_DEBUG(weak,debugBelch("weak: batching %d finalizers\n", n));
-
-    arr = (StgMutArrPtrs *)allocateLocal(cap, sizeofW(StgMutArrPtrs) + n);
-    TICK_ALLOC_PRIM(sizeofW(StgMutArrPtrs), n, 0);
-    SET_HDR(arr, &stg_MUT_ARR_PTRS_FROZEN_info, CCS_SYSTEM);
-    arr->ptrs = n;
-
-    n = 0;
-    for (w = list; w; w = w->link) {
-       if (w->finalizer != &stg_NO_FINALIZER_closure) {
-           arr->payload[n] = w->finalizer;
-           n++;
-       }
-    }
-
-    t = createIOThread(cap, 
-                      RtsFlags.GcFlags.initialStkSize, 
-                      rts_apply(cap,
-                          rts_apply(cap,
-                              (StgClosure *)runFinalizerBatch_closure,
-                              rts_mkInt(cap,n)), 
-                          (StgClosure *)arr)
-       );
-    scheduleThread(cap,t);
-}