- Add and enable concurrent sweeper.

runtime/vm/class_table.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/class_table.h"
 #include "vm/flags.h"
 #include "vm/freelist.h"
 #include "vm/heap.h"
 #include "vm/object.h"
 #include "vm/raw_object.h"
@@ skipping 30 matching lines @@
     }
   }
   predefined_class_heap_stats_table_ = reinterpret_cast<ClassHeapStats*>(
         calloc(kNumPredefinedCids, sizeof(ClassHeapStats)));  // NOLINT
   for (intptr_t i = 0; i < kNumPredefinedCids; i++) {
     predefined_class_heap_stats_table_[i].Initialize();
   }
 }
 
 
+ClassTable::ClassTable(ClassTable* original)
+    : top_(original->top_),
+      capacity_(original->top_),
+      table_(reinterpret_cast<RawClass**>(
+          calloc(original->top_, sizeof(RawClass*)))),
+      class_heap_stats_table_(NULL),
+      predefined_class_heap_stats_table_(NULL) {
+  for (intptr_t i = 1; i < top_; i++) {
+    table_[i] = original->At(i);
+  }
+}
+
+
 ClassTable::~ClassTable() {
   free(table_);
   free(predefined_class_heap_stats_table_);
   free(class_heap_stats_table_);
 }
 
 
 void ClassTable::Register(const Class& cls) {
   intptr_t index = cls.id();
   if (index != kIllegalCid) {
@@ skipping 366 matching lines @@
 
 void ClassTable::UpdateLiveNew(intptr_t cid, intptr_t size) {
   ClassHeapStats* stats = PreliminaryStatsAt(cid);
   ASSERT(stats != NULL);
   ASSERT(size >= 0);
   stats->post_gc.AddNew(size);
 }
 
 
 }  // namespace dart