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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( |
| 16 base::DiscardableMemory::GetDefaultType(), size)); |
| 16 if (!memory) | 17 if (!memory) |
| 17 return scoped_ptr<WebDiscardableMemoryImpl>(); | 18 return scoped_ptr<WebDiscardableMemoryImpl>(); |
| 18 return make_scoped_ptr(new WebDiscardableMemoryImpl(memory.Pass())); | 19 return make_scoped_ptr(new WebDiscardableMemoryImpl(memory.Pass())); |
| 19 } | 20 } |
| 20 | 21 |
| 21 bool WebDiscardableMemoryImpl::lock() { | 22 bool WebDiscardableMemoryImpl::lock() { |
| 22 base::LockDiscardableMemoryStatus status = discardable_->Lock(); | 23 base::DiscardableMemoryLockStatus status = discardable_->Lock(); |
| 23 switch (status) { | 24 switch (status) { |
| 24 case base::DISCARDABLE_MEMORY_SUCCESS: | 25 case base::DISCARDABLE_MEMORY_LOCK_STATUS_SUCCESS: |
| 25 return true; | 26 return true; |
| 26 case base::DISCARDABLE_MEMORY_PURGED: | 27 case base::DISCARDABLE_MEMORY_LOCK_STATUS_PURGED: |
| 27 discardable_->Unlock(); | 28 discardable_->Unlock(); |
| 28 return false; | 29 return false; |
| 29 default: | 30 default: |
| 30 discardable_.reset(); | 31 discardable_.reset(); |
| 31 return false; | 32 return false; |
| 32 } | 33 } |
| 33 } | 34 } |
| 34 | 35 |
| 35 void WebDiscardableMemoryImpl::unlock() { | 36 void WebDiscardableMemoryImpl::unlock() { |
| 36 discardable_->Unlock(); | 37 discardable_->Unlock(); |
| 37 } | 38 } |
| 38 | 39 |
| 39 void* WebDiscardableMemoryImpl::data() { | 40 void* WebDiscardableMemoryImpl::data() { |
| 40 return discardable_->Memory(); | 41 return discardable_->Memory(); |
| 41 } | 42 } |
| 42 | 43 |
| 43 WebDiscardableMemoryImpl::WebDiscardableMemoryImpl( | 44 WebDiscardableMemoryImpl::WebDiscardableMemoryImpl( |
| 44 scoped_ptr<base::DiscardableMemory> memory) | 45 scoped_ptr<base::DiscardableMemory> memory) |
| 45 : discardable_(memory.Pass()) { | 46 : discardable_(memory.Pass()) { |
| 46 } | 47 } |
| 47 | 48 |
| 48 } // namespace webkit_glue | 49 } // namespace webkit_glue |
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