Track external allocated memory for weak persistent handles.

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"
@@ skipping 72 matching lines @@
     addr = old_space_->TryAllocate(size, type, PageSpace::kForceGrowth);
     if (addr == 0) {
       OS::PrintErr("Exhausted heap space, trying to allocate %" Pd " bytes.\n",
                    size);
       return 0;
     }
   }
   return addr;
 }
 
+void Heap::AllocateExternal(intptr_t size, Space space) {
+  if (space == kNew) {
+    new_space_->AllocateExternal(size);
+  } else {
+    ASSERT(space == kOld);
+    old_space_->AllocateExternal(size);
+  }
+}
+
+void Heap::FreeExternal(intptr_t size, Space space) {
+  if (space == kNew) {
+    new_space_->FreeExternal(size);
+  } else {
+    ASSERT(space == kOld);
+    old_space_->FreeExternal(size);
+  }
+}
 
 bool Heap::Contains(uword addr) const {
   return new_space_->Contains(addr) ||
       old_space_->Contains(addr);
 }
 
 
 bool Heap::NewContains(uword addr) const {
   return new_space_->Contains(addr);
 }
@@ skipping 214 matching lines @@
 intptr_t Heap::UsedInWords(Space space) const {
   return space == kNew ? new_space_->UsedInWords() : old_space_->UsedInWords();
 }
 
 
 intptr_t Heap::CapacityInWords(Space space) const {
   return space == kNew ? new_space_->CapacityInWords() :
                          old_space_->CapacityInWords();
 }
 
+intptr_t Heap::ExternalInWords(Space space) const {
+  return space == kNew ? new_space_->ExternalInWords() :
+                         old_space_->ExternalInWords();
+}
 
 int64_t Heap::GCTimeInMicros(Space space) const {
   if (space == kNew) {
     return new_space_->gc_time_micros();
   }
   return old_space_->gc_time_micros();
 }
 
 
 intptr_t Heap::Collections(Space space) const {
@@ skipping 173 matching lines @@
     heap->DisableGrowthControl();
 }
 
 
 NoHeapGrowthControlScope::~NoHeapGrowthControlScope() {
     Heap* heap = reinterpret_cast<Isolate*>(isolate())->heap();
     heap->SetGrowthControlState(current_growth_controller_state_);
 }
 
 }  // namespace dart