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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/disk_cache/blockfile/mapped_file.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "base/memory/scoped_ptr.h" | |
| 10 | |
| 11 namespace disk_cache { | |
| 12 | |
| 13 // Note: Most of this class is implemented in platform-specific files. | |
| 14 | |
| 15 bool MappedFile::Load(const FileBlock* block) { | |
| 16 size_t offset = block->offset() + view_size_; | |
| 17 return Read(block->buffer(), block->size(), offset); | |
| 18 } | |
| 19 | |
| 20 bool MappedFile::Store(const FileBlock* block) { | |
| 21 size_t offset = block->offset() + view_size_; | |
| 22 return Write(block->buffer(), block->size(), offset); | |
| 23 } | |
| 24 | |
| 25 bool MappedFile::Load(const FileBlock* block, | |
| 26 FileIOCallback* callback, | |
| 27 bool* completed) { | |
| 28 size_t offset = block->offset() + view_size_; | |
| 29 return Read(block->buffer(), block->size(), offset, callback, completed); | |
| 30 } | |
| 31 | |
| 32 bool MappedFile::Store(const FileBlock* block, | |
| 33 FileIOCallback* callback, | |
| 34 bool* completed) { | |
| 35 size_t offset = block->offset() + view_size_; | |
| 36 return Write(block->buffer(), block->size(), offset, callback, completed); | |
| 37 } | |
| 38 | |
| 39 bool MappedFile::Preload() { | |
| 40 size_t file_len = GetLength(); | |
| 41 scoped_ptr<char[]> buf(new char[file_len]); | |
| 42 if (!Read(buf.get(), file_len, 0)) | |
| 43 return false; | |
| 44 return true; | |
| 45 } | |
| 46 } // namespace disk_cache | |
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