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1 | !747 |
2 | !721 // thread { |
3 | |
4 | !include #1000774 // CircularFifoBuffer |
5 | !include #1000782 // Flag |
6 | |
7 | m { |
8 | static int port = 1234; |
9 | static new Flag killFlag; |
10 | |
11 | p { |
12 | installKillSwitch(); |
13 | print("Hello world. Sleeping. Port=" + port); |
14 | killFlag.waitUntilUp(); |
15 | } |
16 | |
17 | static void installKillSwitch() ctex { |
18 | final ServerSocket serverSocket = new ServerSocket(1234); |
19 | //serverSocket.setSoTimeout(1000); |
20 | |
21 | daemon { // todo: higher priority |
22 | while (true) { |
23 | try { |
24 | final Socket s = serverSocket.accept(); |
25 | print("connect"); |
26 | thread { |
27 | InputStream in = s.getInputStream(); |
28 | CircularFifoBuffer<Character> b = new CircularFifoBuffer<Character>(4); |
29 | while (true) { |
30 | int i = in.read(); |
31 | if (i < 0) break; |
32 | print(i); |
33 | b.add((char) i); |
34 | S s = getLast(b, 4); |
35 | //print("> " + s); |
36 | if (s == "kill") |
37 | killMe(); |
38 | } |
39 | print("disconnect"); |
40 | } |
41 | } catch (SocketTimeoutException e) { |
42 | } |
43 | } |
44 | } |
45 | } |
46 | |
47 | static void killMe() { |
48 | print("killing"); |
49 | |
50 | // keepWakingUp(); // see sleep() above. Does this make sense? |
51 | |
52 | System.exit(0); // This works. |
53 | |
54 | // killFlag.raise(); // And this is a very safe way to do it too. |
55 | } |
56 | |
57 | static S getLast(CircularFifoBuffer<Character> b, int n) { |
58 | n = Math.min(n, b.size()); |
59 | new StringBuilder buf; |
60 | Iterator<Character> it = b.getBackingStore().descendingIterator(); |
61 | for (int i = 0; i < n; i++) |
62 | buf.append(it.next()); |
63 | return buf.reverse().toString(); |
64 | } |
65 | } |
Began life as a copy of #1000775
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Snippet ID: | #1000776 |
Snippet name: | Kill Switch! |
Eternal ID of this version: | #1000776/1 |
Text MD5: | be05b2dcc0789c1ad3003ec2ee8c92eb |
Transpilation MD5: | 9f9b363f0a44c3e5b427d179785f6243 |
Author: | stefan |
Category: | |
Type: | JavaX source code |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2015-08-27 02:01:33 |
Source code size: | 1712 bytes / 65 lines |
Pitched / IR pitched: | No / Yes |
Views / Downloads: | 602 / 575 |
Referenced in: | [show references] |