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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 library dart.vmstats; | 5 library dart.vmstats; |
6 | 6 |
7 import 'dart:async'; | 7 import 'dart:async'; |
8 import 'dart:html'; | 8 import 'dart:html'; |
9 import 'dart:json' as JSON; | 9 import 'dart:json' as JSON; |
10 | 10 |
11 part 'bargraph.dart'; | 11 part 'bargraph.dart'; |
12 part 'isolate_list.dart'; | 12 part 'isolate_list.dart'; |
13 part 'models.dart'; | 13 part 'models.dart'; |
14 | 14 |
15 BarGraph _graph; | 15 BarGraph _graph; |
16 IsolateList _isolateList; | 16 IsolateList _isolateList; |
17 DivElement _statusText; | 17 DivElement _statusText; |
18 IsolateListModel _isolates; | 18 IsolateListModel _isolates; |
19 Timer _updater; | 19 Timer _updater; |
20 | 20 |
21 final int _POLL_INTERVAL_IN_MS = 1000; | 21 final int _POLL_INTERVAL = const Duration(seconds: 1); |
22 | 22 |
23 void main() { | 23 void main() { |
24 DivElement dashBoard = query('#dashboard'); | 24 DivElement dashBoard = query('#dashboard'); |
25 CanvasElement canvas = query('#graph'); | 25 CanvasElement canvas = query('#graph'); |
26 var elements = [ new Element("Old Space", "#97FFFF"), | 26 var elements = [ new Element("Old Space", "#97FFFF"), |
27 new Element("New Space", "#00EE76")]; | 27 new Element("New Space", "#00EE76")]; |
28 _graph = new BarGraph(canvas, elements); | 28 _graph = new BarGraph(canvas, elements); |
29 UListElement isolateListElement = query('#isolateList'); | 29 UListElement isolateListElement = query('#isolateList'); |
30 _isolateList = new IsolateList(isolateListElement); | 30 _isolateList = new IsolateList(isolateListElement); |
31 _statusText = query('#statusText'); | 31 _statusText = query('#statusText'); |
32 | 32 |
33 _isolates = new IsolateListModel(); | 33 _isolates = new IsolateListModel(); |
34 _isolates.addListener(onUpdateStatus, onRequestFailed); | 34 _isolates.addListener(onUpdateStatus, onRequestFailed); |
35 _isolates.update(); | 35 _isolates.update(); |
36 _updater = | 36 _updater = new Timer.periodic(_POLL_INTERVAL, (timer) => _isolates.update()); |
37 new Timer.repeating(_POLL_INTERVAL_IN_MS, (timer) => _isolates.update()); | |
38 } | 37 } |
39 | 38 |
40 void onUpdateStatus(IsolateListModel model) { | 39 void onUpdateStatus(IsolateListModel model) { |
41 int oldSpace = 0; | 40 int oldSpace = 0; |
42 int newSpace = 0; | 41 int newSpace = 0; |
43 model.forEach((Isolate element) { | 42 model.forEach((Isolate element) { |
44 oldSpace += element.oldSpace.used; | 43 oldSpace += element.oldSpace.used; |
45 newSpace += element.newSpace.used; | 44 newSpace += element.newSpace.used; |
46 }); | 45 }); |
47 _graph.addSample([oldSpace, newSpace]); | 46 _graph.addSample([oldSpace, newSpace]); |
48 _isolateList.updateList(model); | 47 _isolateList.updateList(model); |
49 showStatus('Running ...'); | 48 showStatus('Running ...'); |
50 } | 49 } |
51 | 50 |
52 void onRequestFailed() { | 51 void onRequestFailed() { |
53 _updater.cancel(); | 52 _updater.cancel(); |
54 _isolates.removeListener(onUpdateStatus); | 53 _isolates.removeListener(onUpdateStatus); |
55 showStatus('Server closed'); | 54 showStatus('Server closed'); |
56 } | 55 } |
57 | 56 |
58 void showStatus(status) { | 57 void showStatus(status) { |
59 _statusText.text = status; | 58 _statusText.text = status; |
60 } | 59 } |
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