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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 #include "platform/MemoryCoordinator.h" | 5 #include "platform/MemoryCoordinator.h" |
6 | 6 |
7 #include "platform/fonts/FontCache.h" | 7 #include "platform/fonts/FontCache.h" |
8 #include "platform/graphics/ImageDecodingStore.h" | 8 #include "platform/graphics/ImageDecodingStore.h" |
9 #include "platform/tracing/TraceEvent.h" | 9 #include "platform/tracing/TraceEvent.h" |
10 #include "wtf/allocator/Partitions.h" | 10 #include "wtf/allocator/Partitions.h" |
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35 void MemoryCoordinator::prepareToSuspend() { | 35 void MemoryCoordinator::prepareToSuspend() { |
36 for (auto& client : m_clients) | 36 for (auto& client : m_clients) |
37 client->prepareToSuspend(); | 37 client->prepareToSuspend(); |
38 WTF::Partitions::decommitFreeableMemory(); | 38 WTF::Partitions::decommitFreeableMemory(); |
39 } | 39 } |
40 | 40 |
41 void MemoryCoordinator::onMemoryPressure(WebMemoryPressureLevel level) { | 41 void MemoryCoordinator::onMemoryPressure(WebMemoryPressureLevel level) { |
42 TRACE_EVENT0("blink", "MemoryCoordinator::onMemoryPressure"); | 42 TRACE_EVENT0("blink", "MemoryCoordinator::onMemoryPressure"); |
43 for (auto& client : m_clients) | 43 for (auto& client : m_clients) |
44 client->onMemoryPressure(level); | 44 client->onMemoryPressure(level); |
45 if (level == WebMemoryPressureLevelCritical) { | 45 clearMemory(level == WebMemoryPressureLevelCritical); |
46 } | |
47 | |
48 void MemoryCoordinator::onMemoryStateChange(MemoryState state) { | |
49 for (auto& client : m_clients) | |
50 client->onMemoryStateChange(state); | |
51 clearMemory(state == MemoryState::SUSPENDED); | |
52 } | |
53 | |
54 void MemoryCoordinator::clearMemory(bool critical) { | |
haraken
2016/10/07 11:45:30
I'd avoid introducing a boolean flag. See my below
hajimehoshi
2016/10/11 07:05:32
Done.
| |
55 if (critical) { | |
46 // Clear the image cache. | 56 // Clear the image cache. |
47 // TODO(tasak|bashi): Make ImageDecodingStore and FontCache be | 57 // TODO(tasak|bashi): Make ImageDecodingStore and FontCache be |
48 // MemoryCoordinatorClients rather than clearing caches here. | 58 // MemoryCoordinatorClients rather than clearing caches here. |
49 ImageDecodingStore::instance().clear(); | 59 ImageDecodingStore::instance().clear(); |
50 FontCache::fontCache()->invalidate(); | 60 FontCache::fontCache()->invalidate(); |
51 } | 61 } |
52 WTF::Partitions::decommitFreeableMemory(); | 62 WTF::Partitions::decommitFreeableMemory(); |
53 } | 63 } |
54 | 64 |
55 DEFINE_TRACE(MemoryCoordinator) { | 65 DEFINE_TRACE(MemoryCoordinator) { |
56 visitor->trace(m_clients); | 66 visitor->trace(m_clients); |
57 } | 67 } |
58 | 68 |
59 } // namespace blink | 69 } // namespace blink |
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