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1 /* | 1 /* |
2 * Copyright (C) 2014 Google Inc. All rights reserved. | 2 * Copyright (C) 2014 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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33 | 33 |
34 #include "core/CoreExport.h" | 34 #include "core/CoreExport.h" |
35 #include "wtf/Allocator.h" | 35 #include "wtf/Allocator.h" |
36 #include "wtf/Forward.h" | 36 #include "wtf/Forward.h" |
37 #include "wtf/RefPtr.h" | 37 #include "wtf/RefPtr.h" |
38 | 38 |
39 namespace blink { | 39 namespace blink { |
40 | 40 |
41 class SharedBuffer; | 41 class SharedBuffer; |
42 | 42 |
43 // Allows transfer of data in multiple chunks from a SharedBuffer to a provided
buffer. | 43 // Allows transfer of data in multiple chunks from a SharedBuffer to a provided |
| 44 // buffer. |
44 class CORE_EXPORT SharedBufferReader { | 45 class CORE_EXPORT SharedBufferReader { |
45 USING_FAST_MALLOC(SharedBufferReader); | 46 USING_FAST_MALLOC(SharedBufferReader); |
46 | 47 |
47 public: | 48 public: |
48 SharedBufferReader(PassRefPtr<const SharedBuffer>); | 49 SharedBufferReader(PassRefPtr<const SharedBuffer>); |
49 | 50 |
50 ~SharedBufferReader(); | 51 ~SharedBufferReader(); |
51 | 52 |
52 // Returns the number of bytes that were read (i.e. written to |outputBuffer|)
. | 53 // Returns the number of bytes that were read (i.e. written to |
53 // TODO(junov): use size_t instead of int. Until then, readData uses safeCast
internally. | 54 // |outputBuffer|). |
| 55 // TODO(junov): use size_t instead of int. Until then, readData uses safeCast |
| 56 // internally. |
54 int readData(char* outputBuffer, int askedToRead); | 57 int readData(char* outputBuffer, int askedToRead); |
55 | 58 |
56 private: | 59 private: |
57 RefPtr<const SharedBuffer> m_buffer; | 60 RefPtr<const SharedBuffer> m_buffer; |
58 size_t m_currentOffset; | 61 size_t m_currentOffset; |
59 }; | 62 }; |
60 | 63 |
61 } // namespace blink | 64 } // namespace blink |
62 | 65 |
63 #endif // SharedBufferReader_h | 66 #endif // SharedBufferReader_h |
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