base/allocator/allocator_extension.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/allocator/allocator_extension.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace base {
  10 namespace allocator {
  11
  12 bool GetAllocatorWasteSize(size_t* size) {
  13   thunks::GetAllocatorWasteSizeFunction get_allocator_waste_size_function =
  14       thunks::GetGetAllocatorWasteSizeFunction();
  15   return get_allocator_waste_size_function != NULL &&
  16          get_allocator_waste_size_function(size);
  17 }
  18
  19 void GetStats(char* buffer, int buffer_length) {
  20   DCHECK_GT(buffer_length, 0);
  21   thunks::GetStatsFunction get_stats_function = thunks::GetGetStatsFunction();
  22   if (get_stats_function)
  23     get_stats_function(buffer, buffer_length);
  24   else
  25     buffer[0] = '\0';
  26 }
  27
  28 void ReleaseFreeMemory() {
  29   thunks::ReleaseFreeMemoryFunction release_free_memory_function =
  30       thunks::GetReleaseFreeMemoryFunction();
  31   if (release_free_memory_function)
  32     release_free_memory_function();
  33 }
  34
  35 void SetGetAllocatorWasteSizeFunction(
  36     thunks::GetAllocatorWasteSizeFunction get_allocator_waste_size_function) {
  37   DCHECK_EQ(thunks::GetGetAllocatorWasteSizeFunction(),
  38             reinterpret_cast<thunks::GetAllocatorWasteSizeFunction>(NULL));
  39   thunks::SetGetAllocatorWasteSizeFunction(get_allocator_waste_size_function);
  40 }
  41
  42 void SetGetStatsFunction(thunks::GetStatsFunction get_stats_function) {
  43   DCHECK_EQ(thunks::GetGetStatsFunction(),
  44             reinterpret_cast<thunks::GetStatsFunction>(NULL));
  45   thunks::SetGetStatsFunction(get_stats_function);
  46 }
  47
  48 void SetReleaseFreeMemoryFunction(
  49     thunks::ReleaseFreeMemoryFunction release_free_memory_function) {
  50   DCHECK_EQ(thunks::GetReleaseFreeMemoryFunction(),
  51             reinterpret_cast<thunks::ReleaseFreeMemoryFunction>(NULL));
  52   thunks::SetReleaseFreeMemoryFunction(release_free_memory_function);
  53 }
  54
  55 }  // namespace allocator
  56 }  // namespace base