OLD | NEW |
1 // Copyright (c) 2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2008 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 // DataPack represents a read-only view onto an on-disk file that contains | 5 // DataPack represents a read-only view onto an on-disk file that contains |
6 // (key, value) pairs of data. It's used to store static resources like | 6 // (key, value) pairs of data. It's used to store static resources like |
7 // translation strings and images. | 7 // translation strings and images. |
8 | 8 |
9 #ifndef BASE_DATA_PACK_H_ | 9 #ifndef BASE_DATA_PACK_H_ |
10 #define BASE_DATA_PACK_H_ | 10 #define BASE_DATA_PACK_H_ |
(...skipping 17 matching lines...) Expand all Loading... |
28 public: | 28 public: |
29 DataPack(); | 29 DataPack(); |
30 ~DataPack(); | 30 ~DataPack(); |
31 | 31 |
32 // Load a pack file from |path|, returning false on error. | 32 // Load a pack file from |path|, returning false on error. |
33 bool Load(const FilePath& path); | 33 bool Load(const FilePath& path); |
34 | 34 |
35 // Get resource by id |resource_id|, filling in |data|. | 35 // Get resource by id |resource_id|, filling in |data|. |
36 // The data is owned by the DataPack object and should not be modified. | 36 // The data is owned by the DataPack object and should not be modified. |
37 // Returns false if the resource id isn't found. | 37 // Returns false if the resource id isn't found. |
38 bool GetStringPiece(uint32 resource_id, StringPiece* data); | 38 bool GetStringPiece(uint32 resource_id, StringPiece* data) const; |
39 | 39 |
40 // Like GetStringPiece(), but returns a reference to memory. This interface | 40 // Like GetStringPiece(), but returns a reference to memory. This interface |
41 // is used for image data, while the StringPiece interface is usually used | 41 // is used for image data, while the StringPiece interface is usually used |
42 // for localization strings. | 42 // for localization strings. |
43 RefCountedStaticMemory* GetStaticMemory(uint32 resource_id); | 43 RefCountedStaticMemory* GetStaticMemory(uint32 resource_id) const; |
44 | 44 |
45 // Writes a pack file containing |resources| to |path|. | 45 // Writes a pack file containing |resources| to |path|. |
46 static bool WritePack(const FilePath& path, | 46 static bool WritePack(const FilePath& path, |
47 const std::map<uint32, StringPiece>& resources); | 47 const std::map<uint32, StringPiece>& resources); |
48 | 48 |
49 private: | 49 private: |
50 // The memory-mapped data. | 50 // The memory-mapped data. |
51 scoped_ptr<file_util::MemoryMappedFile> mmap_; | 51 scoped_ptr<file_util::MemoryMappedFile> mmap_; |
52 | 52 |
53 // Number of resources in the data. | 53 // Number of resources in the data. |
54 size_t resource_count_; | 54 size_t resource_count_; |
55 | 55 |
56 DISALLOW_COPY_AND_ASSIGN(DataPack); | 56 DISALLOW_COPY_AND_ASSIGN(DataPack); |
57 }; | 57 }; |
58 | 58 |
59 } // namespace base | 59 } // namespace base |
60 | 60 |
61 #endif // BASE_DATA_PACK_H_ | 61 #endif // BASE_DATA_PACK_H_ |
OLD | NEW |