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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, 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 library operation.queue; | 5 library operation.queue; |
6 | 6 |
7 import 'dart:collection'; | 7 import 'dart:collection'; |
8 | 8 |
9 import 'package:analysis_server/src/analysis_server.dart'; | 9 import 'package:analysis_server/src/analysis_server.dart'; |
10 import 'package:analysis_server/src/operation/operation.dart'; | 10 import 'package:analysis_server/src/operation/operation.dart'; |
| 11 import 'package:analyzer/src/generated/engine.dart'; |
11 import 'package:analyzer/src/generated/source.dart'; | 12 import 'package:analyzer/src/generated/source.dart'; |
12 | 13 |
13 /** | 14 /** |
14 * A queue of operations in an [AnalysisServer]. | 15 * A queue of operations in an [AnalysisServer]. |
15 */ | 16 */ |
16 class ServerOperationQueue { | 17 class ServerOperationQueue { |
17 final List<Queue<ServerOperation>> _queues = <Queue<ServerOperation>>[]; | 18 final List<Queue<ServerOperation>> _queues = <Queue<ServerOperation>>[]; |
18 | 19 |
19 ServerOperationQueue() { | 20 ServerOperationQueue() { |
20 for (int i = 0; i < ServerOperationPriority.COUNT; i++) { | 21 for (int i = 0; i < ServerOperationPriority.COUNT; i++) { |
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44 /** | 45 /** |
45 * Removes all elements in the queue. | 46 * Removes all elements in the queue. |
46 */ | 47 */ |
47 void clear() { | 48 void clear() { |
48 for (Queue<ServerOperation> queue in _queues) { | 49 for (Queue<ServerOperation> queue in _queues) { |
49 queue.clear(); | 50 queue.clear(); |
50 } | 51 } |
51 } | 52 } |
52 | 53 |
53 /** | 54 /** |
| 55 * The given [context] has been removed, so all pending operations that refer |
| 56 * to it should be removed from the queue. |
| 57 */ |
| 58 void contextRemoved(AnalysisContext context) { |
| 59 for (Queue<ServerOperation> queue in _queues) { |
| 60 queue.removeWhere((operation) => operation.context == context); |
| 61 } |
| 62 } |
| 63 |
| 64 /** |
54 * Return the next operation to perform, or `null` if the queue is empty. | 65 * Return the next operation to perform, or `null` if the queue is empty. |
55 * This method does not change the queue. | 66 * This method does not change the queue. |
56 */ | 67 */ |
57 ServerOperation peek() { | 68 ServerOperation peek() { |
58 for (Queue<ServerOperation> queue in _queues) { | 69 for (Queue<ServerOperation> queue in _queues) { |
59 if (!queue.isEmpty) { | 70 if (!queue.isEmpty) { |
60 return queue.first; | 71 return queue.first; |
61 } | 72 } |
62 } | 73 } |
63 return null; | 74 return null; |
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111 for (var operation in queue) { | 122 for (var operation in queue) { |
112 if (test(operation)) { | 123 if (test(operation)) { |
113 queue.remove(operation); | 124 queue.remove(operation); |
114 return operation; | 125 return operation; |
115 } | 126 } |
116 } | 127 } |
117 } | 128 } |
118 return null; | 129 return null; |
119 } | 130 } |
120 } | 131 } |
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