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Side by Side Diff: webkit/child/web_discardable_memory_impl.cc

Issue 114923005: base: Discardable memory types. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Add switches::kUseDiscardableMemory to kForwardSwitches Created 6 years, 11 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 #include "webkit/child/web_discardable_memory_impl.h" 5 #include "webkit/child/web_discardable_memory_impl.h"
6 6
7 namespace webkit_glue { 7 namespace webkit_glue {
8 8
9 WebDiscardableMemoryImpl::~WebDiscardableMemoryImpl() {} 9 WebDiscardableMemoryImpl::~WebDiscardableMemoryImpl() {}
10 10
11 // static 11 // static
12 scoped_ptr<WebDiscardableMemoryImpl> 12 scoped_ptr<WebDiscardableMemoryImpl>
13 WebDiscardableMemoryImpl::CreateLockedMemory(size_t size) { 13 WebDiscardableMemoryImpl::CreateLockedMemory(size_t size) {
14 scoped_ptr<base::DiscardableMemory> memory( 14 scoped_ptr<base::DiscardableMemory> memory(
15 base::DiscardableMemory::CreateLockedMemory(size)); 15 base::DiscardableMemory::CreateLockedMemory(size));
16 if (!memory) 16 if (!memory)
17 return scoped_ptr<WebDiscardableMemoryImpl>(); 17 return scoped_ptr<WebDiscardableMemoryImpl>();
18 return make_scoped_ptr(new WebDiscardableMemoryImpl(memory.Pass())); 18 return make_scoped_ptr(new WebDiscardableMemoryImpl(memory.Pass()));
19 } 19 }
20 20
21 bool WebDiscardableMemoryImpl::lock() { 21 bool WebDiscardableMemoryImpl::lock() {
22 base::LockDiscardableMemoryStatus status = discardable_->Lock(); 22 base::DiscardableMemoryLockStatus status = discardable_->Lock();
23 switch (status) { 23 switch (status) {
24 case base::DISCARDABLE_MEMORY_SUCCESS: 24 case base::DISCARDABLE_MEMORY_LOCK_STATUS_SUCCESS:
25 return true; 25 return true;
26 case base::DISCARDABLE_MEMORY_PURGED: 26 case base::DISCARDABLE_MEMORY_LOCK_STATUS_PURGED:
27 discardable_->Unlock(); 27 discardable_->Unlock();
28 return false; 28 return false;
29 default: 29 default:
30 discardable_.reset(); 30 discardable_.reset();
31 return false; 31 return false;
32 } 32 }
33 } 33 }
34 34
35 void WebDiscardableMemoryImpl::unlock() { 35 void WebDiscardableMemoryImpl::unlock() {
36 discardable_->Unlock(); 36 discardable_->Unlock();
37 } 37 }
38 38
39 void* WebDiscardableMemoryImpl::data() { 39 void* WebDiscardableMemoryImpl::data() {
40 return discardable_->Memory(); 40 return discardable_->Memory();
41 } 41 }
42 42
43 WebDiscardableMemoryImpl::WebDiscardableMemoryImpl( 43 WebDiscardableMemoryImpl::WebDiscardableMemoryImpl(
44 scoped_ptr<base::DiscardableMemory> memory) 44 scoped_ptr<base::DiscardableMemory> memory)
45 : discardable_(memory.Pass()) { 45 : discardable_(memory.Pass()) {
46 } 46 }
47 47
48 } // namespace webkit_glue 48 } // namespace webkit_glue
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