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Side by Side Diff: base/memory/memory_pressure_listener.h

Issue 1549003002: Switch to standard integer types in base/memory/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 12 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // MemoryPressure provides static APIs for handling memory pressure on 5 // MemoryPressure provides static APIs for handling memory pressure on
6 // platforms that have such signals, such as Android and ChromeOS. 6 // platforms that have such signals, such as Android and ChromeOS.
7 // The app will try to discard buffers that aren't deemed essential (individual 7 // The app will try to discard buffers that aren't deemed essential (individual
8 // modules will implement their own policy). 8 // modules will implement their own policy).
9 9
10 #ifndef BASE_MEMORY_MEMORY_PRESSURE_LISTENER_H_ 10 #ifndef BASE_MEMORY_MEMORY_PRESSURE_LISTENER_H_
11 #define BASE_MEMORY_MEMORY_PRESSURE_LISTENER_H_ 11 #define BASE_MEMORY_MEMORY_PRESSURE_LISTENER_H_
12 12
13 #include "base/base_export.h" 13 #include "base/base_export.h"
14 #include "base/basictypes.h"
15 #include "base/callback.h" 14 #include "base/callback.h"
15 #include "base/macros.h"
16 16
17 namespace base { 17 namespace base {
18 18
19 // To start listening, create a new instance, passing a callback to a 19 // To start listening, create a new instance, passing a callback to a
20 // function that takes a MemoryPressureLevel parameter. To stop listening, 20 // function that takes a MemoryPressureLevel parameter. To stop listening,
21 // simply delete the listener object. The implementation guarantees 21 // simply delete the listener object. The implementation guarantees
22 // that the callback will always be called on the thread that created 22 // that the callback will always be called on the thread that created
23 // the listener. 23 // the listener.
24 // Note that even on the same thread, the callback is not guaranteed to be 24 // Note that even on the same thread, the callback is not guaranteed to be
25 // called synchronously within the system memory pressure broadcast. 25 // called synchronously within the system memory pressure broadcast.
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86 static void DoNotifyMemoryPressure(MemoryPressureLevel memory_pressure_level); 86 static void DoNotifyMemoryPressure(MemoryPressureLevel memory_pressure_level);
87 87
88 MemoryPressureCallback callback_; 88 MemoryPressureCallback callback_;
89 89
90 DISALLOW_COPY_AND_ASSIGN(MemoryPressureListener); 90 DISALLOW_COPY_AND_ASSIGN(MemoryPressureListener);
91 }; 91 };
92 92
93 } // namespace base 93 } // namespace base
94 94
95 #endif // BASE_MEMORY_MEMORY_PRESSURE_LISTENER_H_ 95 #endif // BASE_MEMORY_MEMORY_PRESSURE_LISTENER_H_
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