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annotate src/ch/ethz/ssh2/ChannelCondition.java @ 273:91a31873c42a ganymed

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start conversion from trilead to ganymed
author Carl Byington <carl@five-ten-sg.com>
date Fri, 18 Jul 2014 11:21:46 -0700
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children 071eccdff8ea
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1 /*
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2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
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3 * Please refer to the LICENSE.txt for licensing details.
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4 */
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5 package ch.ethz.ssh2;
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6
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7 /**
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8 * Contains constants that can be used to specify what conditions to wait for on
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9 * a SSH-2 channel (e.g., represented by a {@link Session}).
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10 *
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11 * @see Session#waitForCondition(int, long)
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12 *
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13 * @author Christian Plattner
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14 * @version 2.50, 03/15/10
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15 */
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16
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17 public abstract interface ChannelCondition
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18 {
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19 /**
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20 * A timeout has occurred, none of your requested conditions is fulfilled.
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21 * However, other conditions may be true - therefore, NEVER use the "=="
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22 * operator to test for this (or any other) condition. Always use
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23 * something like <code>((cond &amp; ChannelCondition.CLOSED) != 0)</code>.
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24 */
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25 public static final int TIMEOUT = 1;
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26
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27 /**
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28 * The underlying SSH-2 channel, however not necessarily the whole connection,
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29 * has been closed. This implies <code>EOF</code>. Note that there may still
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30 * be unread stdout or stderr data in the local window, i.e, <code>STDOUT_DATA</code>
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31 * or/and <code>STDERR_DATA</code> may be set at the same time.
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32 */
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33 public static final int CLOSED = 2;
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34
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35 /**
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36 * There is stdout data available that is ready to be consumed.
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37 */
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38 public static final int STDOUT_DATA = 4;
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39
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40 /**
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41 * There is stderr data available that is ready to be consumed.
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42 */
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43 public static final int STDERR_DATA = 8;
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44
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45 /**
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46 * EOF on has been reached, no more _new_ stdout or stderr data will arrive
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47 * from the remote server. However, there may be unread stdout or stderr
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48 * data, i.e, <code>STDOUT_DATA</code> or/and <code>STDERR_DATA</code>
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49 * may be set at the same time.
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50 */
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51 public static final int EOF = 16;
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52
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53 /**
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54 * The exit status of the remote process is available.
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55 * Some servers never send the exist status, or occasionally "forget" to do so.
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56 */
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57 public static final int EXIT_STATUS = 32;
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58
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59 /**
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60 * The exit signal of the remote process is available.
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61 */
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62 public static final int EXIT_SIGNAL = 64;
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63
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64 }