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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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 // VMOptions=--old_gen_heap_size=32 | 5 // VMOptions=--old_gen_heap_size=32 |
6 | 6 |
7 library slow_consumer2_test; | 7 library slow_consumer2_test; |
8 | 8 |
9 import 'dart:async'; | 9 import 'dart:async'; |
10 import 'dart:isolate'; | 10 import 'dart:isolate'; |
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68 if (sentCount == targetCount) { | 68 if (sentCount == targetCount) { |
69 controller.close(); | 69 controller.close(); |
70 return; | 70 return; |
71 } | 71 } |
72 int listSize = chunkSize; | 72 int listSize = chunkSize; |
73 sentCount += listSize; | 73 sentCount += listSize; |
74 if (sentCount > targetCount) { | 74 if (sentCount > targetCount) { |
75 listSize -= sentCount - targetCount; | 75 listSize -= sentCount - targetCount; |
76 sentCount = targetCount; | 76 sentCount = targetCount; |
77 } | 77 } |
78 controller.add(new List.fixedLength(listSize)); | 78 controller.add(new List(listSize)); |
79 int ms = listSize * 1000 ~/ bytesPerSecond; | 79 int ms = listSize * 1000 ~/ bytesPerSecond; |
80 Duration duration = new Duration(milliseconds: ms); | 80 Duration duration = new Duration(milliseconds: ms); |
81 if (!controller.isPaused) new Timer(duration, send); | 81 if (!controller.isPaused) new Timer(duration, send); |
82 } | 82 } |
83 | 83 |
84 onPauseStateChange() { | 84 onPauseStateChange() { |
85 // We don't care if we just unpaused or paused. In either case we just | 85 // We don't care if we just unpaused or paused. In either case we just |
86 // call send which will test it for us. | 86 // call send which will test it for us. |
87 send(); | 87 send(); |
88 } | 88 } |
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99 // file). If the consumer doesn't pause the data-provider it will run out of | 99 // file). If the consumer doesn't pause the data-provider it will run out of |
100 // heap-space. | 100 // heap-space. |
101 | 101 |
102 new DataProvider(800 * MB, 100 * MB, 1 * MB).stream | 102 new DataProvider(800 * MB, 100 * MB, 1 * MB).stream |
103 .pipe(new SlowConsumer(200 * MB, 5 * MB)) | 103 .pipe(new SlowConsumer(200 * MB, 5 * MB)) |
104 .then((count) { | 104 .then((count) { |
105 port.close(); | 105 port.close(); |
106 Expect.equals(100 * MB, count); | 106 Expect.equals(100 * MB, count); |
107 }); | 107 }); |
108 } | 108 } |
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