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1 | /* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */ | |
2 | /* | |
3 | Copyright (c) 2002-2010 ymnk, JCraft,Inc. All rights reserved. | |
4 | ||
5 | Redistribution and use in source and binary forms, with or without | |
6 | modification, are permitted provided that the following conditions are met: | |
7 | ||
8 | 1. Redistributions of source code must retain the above copyright notice, | |
9 | this list of conditions and the following disclaimer. | |
10 | ||
11 | 2. Redistributions in binary form must reproduce the above copyright | |
12 | notice, this list of conditions and the following disclaimer in | |
13 | the documentation and/or other materials provided with the distribution. | |
14 | ||
15 | 3. The names of the authors may not be used to endorse or promote products | |
16 | derived from this software without specific prior written permission. | |
17 | ||
18 | THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, | |
19 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
20 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT, | |
21 | INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, | |
22 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
23 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
24 | OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
25 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
26 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
27 | EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
28 | */ | |
29 | ||
30 | package com.jcraft.jsch; | |
31 | ||
32 | abstract class Request{ | |
33 | private boolean reply=false; | |
34 | private Session session=null; | |
35 | private Channel channel=null; | |
36 | void request(Session session, Channel channel) throws Exception{ | |
37 | this.session=session; | |
38 | this.channel=channel; | |
39 | if(channel.connectTimeout>0){ | |
40 | setReply(true); | |
41 | } | |
42 | } | |
43 | boolean waitForReply(){ return reply; } | |
44 | void setReply(boolean reply){ this.reply=reply; } | |
45 | void write(Packet packet) throws Exception{ | |
46 | if(reply){ | |
47 | channel.reply=-1; | |
48 | } | |
49 | session.write(packet); | |
50 | if(reply){ | |
51 | long start=System.currentTimeMillis(); | |
52 | long timeout=channel.connectTimeout; | |
53 | while(channel.isConnected() && channel.reply==-1){ | |
54 | try{Thread.sleep(10);} | |
55 | catch(Exception ee){ | |
56 | } | |
57 | if(timeout>0L && | |
58 | (System.currentTimeMillis()-start)>timeout){ | |
59 | channel.reply=0; | |
60 | throw new JSchException("channel request: timeout"); | |
61 | } | |
62 | } | |
63 | ||
64 | if(channel.reply==0){ | |
65 | throw new JSchException("failed to send channel request"); | |
66 | } | |
67 | } | |
68 | } | |
69 | } |