base/memory/discardable_memory_linux.cc

   1 // Copyright 2013 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/memory/discardable_memory_emulated.h"
   6
   7 namespace base {
   8
   9 // static
  10 bool DiscardableMemory::SupportedNatively() {
  11   return false;
  12 }
  13
  14 // static
  15 scoped_ptr<DiscardableMemory> DiscardableMemory::CreateLockedMemory(
  16     size_t size) {
  17   scoped_ptr<internal::DiscardableMemoryEmulated> memory(
  18       new internal::DiscardableMemoryEmulated(size));
  19   if (!memory->Initialize())
  20     return scoped_ptr<DiscardableMemory>();
  21
  22   return memory.PassAs<DiscardableMemory>();
  23 }
  24
  25 // static
  26 bool DiscardableMemory::PurgeForTestingSupported() {
  27   return true;
  28 }
  29
  30 // static
  31 void DiscardableMemory::PurgeForTesting() {
  32   internal::DiscardableMemoryEmulated::PurgeForTesting();
  33 }
  34
  35 }  // namespace base