diff options
Diffstat (limited to 'chromium/base/memory/memory_pressure_listener.h')
| -rw-r--r-- | chromium/base/memory/memory_pressure_listener.h | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/chromium/base/memory/memory_pressure_listener.h b/chromium/base/memory/memory_pressure_listener.h index f586209c5bc..6adaeeed7fd 100644 --- a/chromium/base/memory/memory_pressure_listener.h +++ b/chromium/base/memory/memory_pressure_listener.h @@ -3,15 +3,12 @@ // found in the LICENSE file. // MemoryPressure provides static APIs for handling memory pressure on -// platforms that have such signals, such as Android. +// platforms that have such signals, such as Android and ChromeOS. // The app will try to discard buffers that aren't deemed essential (individual // modules will implement their own policy). -// -// Refer to memory_pressure_level_list.h for information about what sorts of -// signals can be sent under what conditions. -#ifndef BASE_MEMORY_PRESSURE_LISTENER_H_ -#define BASE_MEMORY_PRESSURE_LISTENER_H_ +#ifndef BASE_MEMORY_MEMORY_PRESSURE_LISTENER_H_ +#define BASE_MEMORY_MEMORY_PRESSURE_LISTENER_H_ #include "base/base_export.h" #include "base/basictypes.h" @@ -26,12 +23,11 @@ namespace base { // the listener. // Note that even on the same thread, the callback is not guaranteed to be // called synchronously within the system memory pressure broadcast. -// Please see notes on memory_pressure_level_list.h: some levels are absolutely -// critical, and if not enough memory is returned to the system, it'll -// potentially kill the app, and then later the app will have to be +// Please see notes in MemoryPressureLevel enum below: some levels are +// absolutely critical, and if not enough memory is returned to the system, +// it'll potentially kill the app, and then later the app will have to be // cold-started. // -// // Example: // // void OnMemoryPressure(MemoryPressureLevel memory_pressure_level) { @@ -52,6 +48,11 @@ class BASE_EXPORT MemoryPressureListener { // A Java counterpart will be generated for this enum. // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.base enum MemoryPressureLevel { + // No problems, there is enough memory to use. This event is not sent via + // callback, but the enum is used in other places to find out the current + // state of the system. + MEMORY_PRESSURE_LEVEL_NONE = -1, + // Modules are advised to free buffers that are cheap to re-allocate and not // immediately needed. MEMORY_PRESSURE_LEVEL_MODERATE = 0, @@ -81,4 +82,4 @@ class BASE_EXPORT MemoryPressureListener { } // namespace base -#endif // BASE_MEMORY_PRESSURE_LISTENER_H_ +#endif // BASE_MEMORY_MEMORY_PRESSURE_LISTENER_H_ |