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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 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 CONTENT_BROWSER_STREAMS_STREAM_H_ | 5 #ifndef CONTENT_BROWSER_STREAMS_STREAM_H_ |
| 6 #define CONTENT_BROWSER_STREAMS_STREAM_H_ | 6 #define CONTENT_BROWSER_STREAMS_STREAM_H_ |
| 7 | 7 |
| 8 #include <stddef.h> | 8 #include <stddef.h> |
| 9 | 9 |
| 10 #include "base/macros.h" | 10 #include "base/macros.h" |
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| 75 | 75 |
| 76 // Notifies this stream that it will not be receiving any more data. | 76 // Notifies this stream that it will not be receiving any more data. |
| 77 void Finalize(); | 77 void Finalize(); |
| 78 | 78 |
| 79 // Reads a maximum of |buf_size| from the stream into |buf|. Sets | 79 // Reads a maximum of |buf_size| from the stream into |buf|. Sets |
| 80 // |*bytes_read| to the number of bytes actually read. | 80 // |*bytes_read| to the number of bytes actually read. |
| 81 // Returns STREAM_HAS_DATA if data was read, STREAM_EMPTY if no data was read, | 81 // Returns STREAM_HAS_DATA if data was read, STREAM_EMPTY if no data was read, |
| 82 // and STREAM_COMPLETE if the stream is finalized and all data has been read. | 82 // and STREAM_COMPLETE if the stream is finalized and all data has been read. |
| 83 StreamState ReadRawData(net::IOBuffer* buf, int buf_size, int* bytes_read); | 83 StreamState ReadRawData(net::IOBuffer* buf, int buf_size, int* bytes_read); |
| 84 | 84 |
| 85 scoped_ptr<StreamHandle> CreateHandle(); | 85 std::unique_ptr<StreamHandle> CreateHandle(); |
| 86 void CloseHandle(); | 86 void CloseHandle(); |
| 87 | 87 |
| 88 // Indicates whether there is space in the buffer to add more data. | 88 // Indicates whether there is space in the buffer to add more data. |
| 89 bool can_add_data() const { return can_add_data_; } | 89 bool can_add_data() const { return can_add_data_; } |
| 90 | 90 |
| 91 const GURL& url() const { return url_; } | 91 const GURL& url() const { return url_; } |
| 92 | 92 |
| 93 // For StreamRegistry to remember the last memory usage reported to it. | 93 // For StreamRegistry to remember the last memory usage reported to it. |
| 94 size_t last_total_buffered_bytes() const { | 94 size_t last_total_buffered_bytes() const { |
| 95 return last_total_buffered_bytes_; | 95 return last_total_buffered_bytes_; |
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| 116 // Number of bytes read from |reader_| into |data_| including bytes already | 116 // Number of bytes read from |reader_| into |data_| including bytes already |
| 117 // read out. | 117 // read out. |
| 118 size_t data_length_; | 118 size_t data_length_; |
| 119 // Number of bytes in |data_| that are already read out. | 119 // Number of bytes in |data_| that are already read out. |
| 120 size_t data_bytes_read_; | 120 size_t data_bytes_read_; |
| 121 | 121 |
| 122 // Last value returned by writer_->TotalBufferedBytes() in AddData(). Stored | 122 // Last value returned by writer_->TotalBufferedBytes() in AddData(). Stored |
| 123 // in order to check memory usage. | 123 // in order to check memory usage. |
| 124 size_t last_total_buffered_bytes_; | 124 size_t last_total_buffered_bytes_; |
| 125 | 125 |
| 126 scoped_ptr<ByteStreamWriter> writer_; | 126 std::unique_ptr<ByteStreamWriter> writer_; |
| 127 scoped_ptr<ByteStreamReader> reader_; | 127 std::unique_ptr<ByteStreamReader> reader_; |
| 128 | 128 |
| 129 StreamRegistry* registry_; | 129 StreamRegistry* registry_; |
| 130 StreamReadObserver* read_observer_; | 130 StreamReadObserver* read_observer_; |
| 131 StreamWriteObserver* write_observer_; | 131 StreamWriteObserver* write_observer_; |
| 132 | 132 |
| 133 StreamHandleImpl* stream_handle_; | 133 StreamHandleImpl* stream_handle_; |
| 134 | 134 |
| 135 base::WeakPtrFactory<Stream> weak_ptr_factory_; | 135 base::WeakPtrFactory<Stream> weak_ptr_factory_; |
| 136 DISALLOW_COPY_AND_ASSIGN(Stream); | 136 DISALLOW_COPY_AND_ASSIGN(Stream); |
| 137 }; | 137 }; |
| 138 | 138 |
| 139 } // namespace content | 139 } // namespace content |
| 140 | 140 |
| 141 #endif // CONTENT_BROWSER_STREAMS_STREAM_H_ | 141 #endif // CONTENT_BROWSER_STREAMS_STREAM_H_ |
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