Report memory retained by memory allocator internals.

base/allocator/allocator_extension.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/allocator/allocator_extension.h"
 
 #include "base/logging.h"
 
 namespace base {
 namespace allocator {
 
-bool GetProperty(const char* name, size_t* value) {
-  thunks::GetPropertyFunction get_property_function =
-      base::allocator::thunks::GetGetPropertyFunction();
-  return get_property_function != NULL && get_property_function(name, value);
+bool GetAllocatorWasteSize(size_t* size) {
+  thunks::GetAllocatorWasteSizeFunction get_allocator_waste_size_function =
+      base::allocator::thunks::GetGetAllocatorWasteSizeFunction();

[darin (slow to review), 2012/10/23 17:28:30]

nit: no need for base::allocator:: prefix when you have code inside that
namespace.

[alexeif, 2012/10/23 18:00:15]

Done.

+  return get_allocator_waste_size_function != NULL &&
+         get_allocator_waste_size_function(size);
 }
 
 void GetStats(char* buffer, int buffer_length) {
   DCHECK_GT(buffer_length, 0);
   thunks::GetStatsFunction get_stats_function =
       base::allocator::thunks::GetGetStatsFunction();
   if (get_stats_function)
     get_stats_function(buffer, buffer_length);
   else
     buffer[0] = '\0';
 }
 
 void ReleaseFreeMemory() {
   thunks::ReleaseFreeMemoryFunction release_free_memory_function =
       base::allocator::thunks::GetReleaseFreeMemoryFunction();
   if (release_free_memory_function)
     release_free_memory_function();
 }
 
-void SetGetPropertyFunction(
-    thunks::GetPropertyFunction get_property_function) {
-  DCHECK_EQ(base::allocator::thunks::GetGetPropertyFunction(),
-            reinterpret_cast<thunks::GetPropertyFunction>(NULL));
-  base::allocator::thunks::SetGetPropertyFunction(get_property_function);
+void SetGetAllocatorWasteSizeFunction(
+    thunks::GetAllocatorWasteSizeFunction get_allocator_waste_size_function) {
+  DCHECK_EQ(base::allocator::thunks::GetGetAllocatorWasteSizeFunction(),
+            reinterpret_cast<thunks::GetAllocatorWasteSizeFunction>(NULL));
+  base::allocator::thunks::SetGetAllocatorWasteSizeFunction(

[darin (slow to review), 2012/10/23 17:28:30]

ditto:  no need for base::allocator::

[alexeif, 2012/10/23 18:00:15]

Done.

+      get_allocator_waste_size_function);
 }
 
 void SetGetStatsFunction(thunks::GetStatsFunction get_stats_function) {
   DCHECK_EQ(base::allocator::thunks::GetGetStatsFunction(),
             reinterpret_cast<thunks::GetStatsFunction>(NULL));
   base::allocator::thunks::SetGetStatsFunction(get_stats_function);
 }
 
 void SetReleaseFreeMemoryFunction(
     thunks::ReleaseFreeMemoryFunction release_free_memory_function) {
   DCHECK_EQ(base::allocator::thunks::GetReleaseFreeMemoryFunction(),
             reinterpret_cast<thunks::ReleaseFreeMemoryFunction>(NULL));
   base::allocator::thunks::SetReleaseFreeMemoryFunction(
       release_free_memory_function);
 }
 
 }  // namespace allocator
 }  // namespace base