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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 #ifndef PDF_CHUNK_STREAM_H_ | 5 #ifndef PDF_CHUNK_STREAM_H_ |
6 #define PDF_CHUNK_STREAM_H_ | 6 #define PDF_CHUNK_STREAM_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include <map> | 10 #include <map> |
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22 | 22 |
23 void Clear(); | 23 void Clear(); |
24 | 24 |
25 void Preallocate(size_t stream_size); | 25 void Preallocate(size_t stream_size); |
26 size_t GetSize() const; | 26 size_t GetSize() const; |
27 | 27 |
28 bool WriteData(size_t offset, void* buffer, size_t size); | 28 bool WriteData(size_t offset, void* buffer, size_t size); |
29 bool ReadData(size_t offset, size_t size, void* buffer) const; | 29 bool ReadData(size_t offset, size_t size, void* buffer) const; |
30 | 30 |
31 // Returns vector of pairs where first is an offset, second is a size. | 31 // Returns vector of pairs where first is an offset, second is a size. |
32 bool GetMissedRanges(size_t offset, size_t size, | 32 bool GetMissedRanges(size_t offset, |
33 std::vector<std::pair<size_t, size_t> >* ranges) const; | 33 size_t size, |
| 34 std::vector<std::pair<size_t, size_t>>* ranges) const; |
34 bool IsRangeAvailable(size_t offset, size_t size) const; | 35 bool IsRangeAvailable(size_t offset, size_t size) const; |
35 size_t GetFirstMissingByte() const; | 36 size_t GetFirstMissingByte() const; |
36 | 37 |
37 // Finds the first byte of the missing byte interval that offset belongs to. | 38 // Finds the first byte of the missing byte interval that offset belongs to. |
38 size_t GetFirstMissingByteInInterval(size_t offset) const; | 39 size_t GetFirstMissingByteInInterval(size_t offset) const; |
39 // Returns the last byte of the missing byte interval that offset belongs to. | 40 // Returns the last byte of the missing byte interval that offset belongs to. |
40 size_t GetLastMissingByteInInterval(size_t offset) const; | 41 size_t GetLastMissingByteInInterval(size_t offset) const; |
41 | 42 |
42 private: | 43 private: |
43 std::vector<unsigned char> data_; | 44 std::vector<unsigned char> data_; |
44 | 45 |
45 // Pair, first - begining of the chunk, second - size of the chunk. | 46 // Pair, first - begining of the chunk, second - size of the chunk. |
46 std::map<size_t, size_t> chunks_; | 47 std::map<size_t, size_t> chunks_; |
47 | 48 |
48 size_t stream_size_; | 49 size_t stream_size_; |
49 }; | 50 }; |
50 | 51 |
51 }; // namespace chrome_pdf | 52 }; // namespace chrome_pdf |
52 | 53 |
53 #endif // PDF_CHUNK_STREAM_H_ | 54 #endif // PDF_CHUNK_STREAM_H_ |
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