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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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