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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 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 NET_WEBSOCKETS_WEBSOCKET_INFLATER_H_ | 5 #ifndef NET_WEBSOCKETS_WEBSOCKET_INFLATER_H_ |
6 #define NET_WEBSOCKETS_WEBSOCKET_INFLATER_H_ | 6 #define NET_WEBSOCKETS_WEBSOCKET_INFLATER_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 #include <utility> | 9 #include <utility> |
10 #include <vector> | 10 #include <vector> |
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59 scoped_refptr<IOBufferWithSize> GetOutput(size_t size); | 59 scoped_refptr<IOBufferWithSize> GetOutput(size_t size); |
60 | 60 |
61 // Returns the size of the current inflated output. | 61 // Returns the size of the current inflated output. |
62 size_t CurrentOutputSize() const { return output_buffer_.Size(); } | 62 size_t CurrentOutputSize() const { return output_buffer_.Size(); } |
63 | 63 |
64 static const size_t kDefaultBufferCapacity = 512; | 64 static const size_t kDefaultBufferCapacity = 512; |
65 static const size_t kDefaultInputIOBufferCapacity = 512; | 65 static const size_t kDefaultInputIOBufferCapacity = 512; |
66 | 66 |
67 private: | 67 private: |
68 // Ring buffer with fixed capacity. | 68 // Ring buffer with fixed capacity. |
69 class OutputBuffer { | 69 class NET_EXPORT_PRIVATE OutputBuffer { |
70 public: | 70 public: |
71 explicit OutputBuffer(size_t capacity); | 71 explicit OutputBuffer(size_t capacity); |
72 ~OutputBuffer(); | 72 ~OutputBuffer(); |
73 | 73 |
74 size_t Size() const; | 74 size_t Size() const; |
75 // Returns (tail pointer, availabe size). | 75 // Returns (tail pointer, availabe size). |
76 // A user can push data to the queue by writing the data to | 76 // A user can push data to the queue by writing the data to |
77 // the area returned by this function and calling AdvanceTail. | 77 // the area returned by this function and calling AdvanceTail. |
78 std::pair<char*, size_t> GetTail(); | 78 std::pair<char*, size_t> GetTail(); |
79 void Read(char* dest, size_t size); | 79 void Read(char* dest, size_t size); |
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121 scoped_ptr<z_stream_s> stream_; | 121 scoped_ptr<z_stream_s> stream_; |
122 InputQueue input_queue_; | 122 InputQueue input_queue_; |
123 OutputBuffer output_buffer_; | 123 OutputBuffer output_buffer_; |
124 | 124 |
125 DISALLOW_COPY_AND_ASSIGN(WebSocketInflater); | 125 DISALLOW_COPY_AND_ASSIGN(WebSocketInflater); |
126 }; | 126 }; |
127 | 127 |
128 } // namespace net | 128 } // namespace net |
129 | 129 |
130 #endif // NET_WEBSOCKETS_WEBSOCKET_INFLATER_H_ | 130 #endif // NET_WEBSOCKETS_WEBSOCKET_INFLATER_H_ |
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