base/memory/memory_pressure_level_list.h

   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 // This file intentionally does not have header guards, it's included
   6 // inside a macro to generate enum and a java class for the values.
   7
   8 #ifndef DEFINE_MEMORY_PRESSURE_LEVEL
   9 #error "DEFINE_MEMORY_PRESSURE_LEVEL should be defined."
  10 #endif
  11
  12 // Modules are advised to free buffers that are cheap to re-allocate and not
  13 // immediately needed.
  14 DEFINE_MEMORY_PRESSURE_LEVEL(MEMORY_PRESSURE_MODERATE, 0)
  15
  16 // At this level, modules are advised to free all possible memory.
  17 // The alternative is to be killed by the system, which means all memory will
  18 // have to be re-created, plus the cost of a cold start.
  19 DEFINE_MEMORY_PRESSURE_LEVEL(MEMORY_PRESSURE_CRITICAL, 2)