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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 vmservice; | 5 part of vmservice; |
6 | 6 |
7 // A service client. | 7 // A service client. |
8 abstract class Client { | 8 abstract class Client { |
9 /// A port for receipt of asynchronous service events. | |
10 final RawReceivePort eventPort = new RawReceivePort(); | |
11 final VMService service; | 9 final VMService service; |
| 10 final bool sendEvents; |
12 | 11 |
13 Client(this.service) { | 12 Client(this.service, { bool sendEvents: true }) |
14 eventPort.handler = (response) { | 13 : this.sendEvents = sendEvents { |
15 post(null, response); | |
16 }; | |
17 service._addClient(this); | 14 service._addClient(this); |
18 } | 15 } |
19 | 16 |
20 /// When implementing, call [close] when the network connection closes. | 17 /// When implementing, call [close] when the network connection closes. |
21 void close() { | 18 void close() { |
22 eventPort.close(); | |
23 service._removeClient(this); | 19 service._removeClient(this); |
24 } | 20 } |
25 | 21 |
26 /// Call to process a message. Response will be posted with 'seq'. | 22 /// Call to process a message. Response will be posted with 'seq'. |
27 void onMessage(var seq, Message message) { | 23 void onMessage(var seq, Message message) { |
28 try { | 24 try { |
29 // Send message to service. | 25 // Send message to service. |
30 service.route(message).then((response) { | 26 service.route(message).then((response) { |
31 // Call post when the response arrives. | 27 // Call post when the response arrives. |
32 post(seq, response); | 28 post(seq, response); |
33 }); | 29 }); |
34 } catch (e, st) { | 30 } catch (e, st) { |
35 message.setErrorResponse('Internal error: $e'); | 31 message.setErrorResponse('Internal error: $e'); |
36 post(seq, message.response); | 32 post(seq, message.response); |
37 } | 33 } |
38 } | 34 } |
39 | 35 |
40 /// When implementing, responsible for sending [response] to the client. | 36 // Sends a result to the client. Implemented in subclasses. |
41 void post(var seq, dynamic response); | 37 void post(var seq, dynamic result); |
42 | 38 |
43 dynamic toJson() { | 39 dynamic toJson() { |
44 return { | 40 return { |
45 }; | 41 }; |
46 } | 42 } |
47 } | 43 } |
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