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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 library isolate_sample; | 5 library isolate_sample; |
6 | 6 |
7 import 'dart:html'; | 7 import 'dart:html'; |
8 import 'dart:isolate'; | 8 import 'dart:isolate'; |
9 import 'dart:math'; | |
10 | 9 |
11 /* | 10 /* |
12 * This is a simple sample application showing how to create two isolates | 11 * This is a simple sample application showing how to create two isolates |
13 * and send messages to them, and receive replies back. | 12 * and send messages to them, and receive replies back. |
14 */ | 13 */ |
15 | 14 |
16 /** | 15 /** |
17 * These are the messages we are going to send to the isolates that we create. | 16 * These are the messages we are going to send to the isolates that we create. |
18 */ | 17 */ |
19 class MessageId { | 18 class MessageId { |
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68 | 67 |
69 /** | 68 /** |
70 * Display the message we received, and send back a simple reply (unless | 69 * Display the message we received, and send back a simple reply (unless |
71 * the user has unchecked the reply checkbox). | 70 * the user has unchecked the reply checkbox). |
72 */ | 71 */ |
73 void greeting(String message, SendPort replyTo) { | 72 void greeting(String message, SendPort replyTo) { |
74 div.query('.messageBox').innerHtml = | 73 div.query('.messageBox').innerHtml = |
75 'received message: <span class="messageText">"${message}"</span>'; | 74 'received message: <span class="messageText">"${message}"</span>'; |
76 if (div.query('input.replyCheckbox').checked) { | 75 if (div.query('input.replyCheckbox').checked) { |
77 InputElement element = div.query('.delayTextbox'); | 76 InputElement element = div.query('.delayTextbox'); |
78 int millis = parseInt(element.value); | 77 int millis = int.parse(element.value); |
79 // TODO(justinfagnani): use Timer when it works in isolates in dart2js | 78 // TODO(justinfagnani): use Timer when it works in isolates in dart2js |
80 // see: http://dartbug.com/4997 | 79 // see: http://dartbug.com/4997 |
81 window.setTimeout(() { | 80 window.setTimeout(() { |
82 replyTo.send('this is a reply from isolate "${isolateName}"', null); | 81 replyTo.send('this is a reply from isolate "${isolateName}"', null); |
83 }, millis); | 82 }, millis); |
84 } | 83 } |
85 } | 84 } |
86 | 85 |
87 port.receive((message, SendPort replyTo) { | 86 port.receive((message, SendPort replyTo) { |
88 switch(message['id']) { | 87 switch(message['id']) { |
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120 ports[isolateName].call(message).then((var msg) { | 119 ports[isolateName].call(message).then((var msg) { |
121 replyElement.text = msg; | 120 replyElement.text = msg; |
122 }); | 121 }); |
123 }); | 122 }); |
124 } | 123 } |
125 | 124 |
126 port.receive((var message, SendPort replyTo) { | 125 port.receive((var message, SendPort replyTo) { |
127 replyElement.text = message; | 126 replyElement.text = message; |
128 }); | 127 }); |
129 } | 128 } |
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