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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 part of dart.io; | 5 part of dart.io; |
6 | 6 |
7 // Read the file in blocks of size 64k. | 7 // Read the file in blocks of size 64k. |
8 const int _BLOCK_SIZE = 64 * 1024; | 8 const int _BLOCK_SIZE = 64 * 1024; |
9 | 9 |
10 | 10 |
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174 | 174 |
175 class _FileStreamConsumer extends StreamConsumer<List<int>> { | 175 class _FileStreamConsumer extends StreamConsumer<List<int>> { |
176 File _file; | 176 File _file; |
177 Future<RandomAccessFile> _openFuture; | 177 Future<RandomAccessFile> _openFuture; |
178 StreamSubscription _subscription; | 178 StreamSubscription _subscription; |
179 | 179 |
180 _FileStreamConsumer(File this._file, FileMode mode) { | 180 _FileStreamConsumer(File this._file, FileMode mode) { |
181 _openFuture = _file.open(mode: mode); | 181 _openFuture = _file.open(mode: mode); |
182 } | 182 } |
183 | 183 |
184 _FileStreamConsumer.fromStdio(int fd) { | |
185 assert(1 <= fd && fd <= 2); | |
186 _openFuture = new Future.value(_File._openStdioSync(fd)); | |
187 } | |
188 | |
189 Future<File> addStream(Stream<List<int>> stream) { | 184 Future<File> addStream(Stream<List<int>> stream) { |
190 Completer<File> completer = new Completer<File>(); | 185 Completer<File> completer = new Completer<File>(); |
191 _openFuture | 186 _openFuture |
192 .then((openedFile) { | 187 .then((openedFile) { |
193 void error(e, [StackTrace stackTrace]) { | 188 void error(e, [StackTrace stackTrace]) { |
194 _subscription.cancel(); | 189 _subscription.cancel(); |
195 openedFile.close(); | 190 openedFile.close(); |
196 completer.completeError(e, stackTrace); | 191 completer.completeError(e, stackTrace); |
197 } | 192 } |
198 _subscription = stream.listen( | 193 _subscription = stream.listen( |
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906 | 901 |
907 void _checkAvailable() { | 902 void _checkAvailable() { |
908 if (_asyncDispatched) { | 903 if (_asyncDispatched) { |
909 throw new FileSystemException("An async operation is currently pending", p
ath); | 904 throw new FileSystemException("An async operation is currently pending", p
ath); |
910 } | 905 } |
911 if (closed) { | 906 if (closed) { |
912 throw new FileSystemException("File closed", path); | 907 throw new FileSystemException("File closed", path); |
913 } | 908 } |
914 } | 909 } |
915 } | 910 } |
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