Background finalization.

runtime/vm/heap.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/heap.h"
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/flags.h"
 #include "vm/isolate.h"
 #include "vm/lockers.h"
 #include "vm/object.h"
 #include "vm/object_set.h"
 #include "vm/os.h"
 #include "vm/pages.h"
 #include "vm/raw_object.h"
 #include "vm/scavenger.h"
 #include "vm/service.h"
 #include "vm/service_event.h"
 #include "vm/stack_frame.h"
 #include "vm/tags.h"
 #include "vm/timeline.h"
 #include "vm/verifier.h"
 #include "vm/virtual_memory.h"
 #include "vm/weak_table.h"
+#include "vm/dart_api_state.h"

[siva, 2016/06/02 20:18:05]

Why is 'dart_api_state.h' included here?

[rmacnak, 2016/06/03 01:08:31]

I started with BackgroundFinalizer in this file. Removed.

 
 namespace dart {
 
 Heap::Heap(Isolate* isolate,
            intptr_t max_new_gen_semi_words,
            intptr_t max_old_gen_words,
            intptr_t max_external_words)
     : isolate_(isolate),
       new_space_(this, max_new_gen_semi_words, kNewObjectAlignmentOffset),
       old_space_(this, max_old_gen_words, max_external_words),
       barrier_(new Monitor()),
       barrier_done_(new Monitor()),
+      finalization_tasks_lock_(new Monitor()),
+      finalization_tasks_(0),
       read_only_(false),
       gc_new_space_in_progress_(false),
       gc_old_space_in_progress_(false),
       pretenure_policy_(0) {
   for (int sel = 0;
        sel < kNumWeakSelectors;
        sel++) {
     new_weak_tables_[sel] = new WeakTable();
     old_weak_tables_[sel] = new WeakTable();
   }
@@ skipping 867 matching lines @@
   Dart::vm_isolate()->heap()->WriteProtect(false);
 }
 
 
 WritableVMIsolateScope::~WritableVMIsolateScope() {
   ASSERT(Dart::vm_isolate()->heap()->UsedInWords(Heap::kNew) == 0);
   Dart::vm_isolate()->heap()->WriteProtect(true);
 }
 
 }  // namespace dart