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(1) Make sure there is a Copyright notice on all visible files. (2) Make sure all years in which the file has been modified are listed. (3) Make sure the format is consistent, i.e. separate consecutive years with a dash, not a comma. When Stephane changed starteam.html it has been 2001 in France but 2002 in Australia - does that mean we add 2002 to the Copyright line or not? ;-) git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270652 13f79535-47bb-0310-9956-ffa450edef68
118 lines
4.5 KiB
HTML
118 lines
4.5 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Language" content="en-us">
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<title>Apache Ant User Manual</title>
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</head>
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<body>
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<h2>Waitfor</h2>
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<h3>Description</h3>
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<p>Blocks execution until a set of specified conditions become true. This is intended
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to be used with the <a href="parallel.html">parallel</a> task to
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synchronize a set of processes.</p>
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<p>The conditions to wait for are defined in <a href="waitfor.html#nested">nested elements</a>,
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if multiple conditions are specified, then the task will wait until all conditions are true..</p>
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<p></p>
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<p>If both maxwait and maxwaitunit are not specified, the maxwait is 3 minutes (180000 milliseconds).</p>
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<p>If the <code>timeoutproperty</code> attribute has been set, a
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property of that name will be created if the condition didn't come
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true within the specified time.</p>
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<h3>Parameters</h3>
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<table border="1" cellpadding="2" cellspacing="0">
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top">maxwait</td>
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<td valign="top">The maximum amount of time to wait for all the required conditions
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to become true before failing the task. Defaults to 180000 maxwaitunits.</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top">maxwaitunit</td>
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<td valign="top">The unit of time that must be used to interpret the value of the
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maxwait attribute. Defaults to millisecond.
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Valid Values are
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<ul>
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<li>millisecond</li>
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<li>second</li>
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<li>minute</li>
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<li>hour</li>
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<li>day</li>
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<li>week</li>
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</ul>
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</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top">checkevery</td>
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<td valign="top">The amount of time to wait between each test of the conditions.
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Defaults to 500 checkeveryunits.</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top">checkeveryunit</td>
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<td valign="top">The unit of time that must be used to interpret the value of the
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checkevery attribute. Defaults to millisecond.
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Valid Values are
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<ul>
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<li>millisecond</li>
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<li>second</li>
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<li>minute</li>
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<li>hour</li>
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<li>day</li>
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<li>week</li>
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</ul>
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</td>
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<td valign="top" align="center">No</td>
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</tr>
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<tr>
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<td valign="top">timeoutproperty</td>
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<td valign="top">the name of the property to set if maxwait has
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been exceeded.</td>
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<td valign="top" align="center">No</td>
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</tr>
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</table>
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<h3><a name="nested">Nested Elements</a></h3>
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<p>The available conditions that satisfy the
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<code><waitfor></code> task are the same as those for the
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<a href="condition.html"><code><condition></code></a> task. See
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<a href="conditions.html">here</a> for the full list.</p>
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<h3>Examples</h3>
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<blockquote>
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<p><code><waitfor maxwait="30" maxwaitunit="second"><br>
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<available file="errors.log"/><br>
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</waitfor></code></p>
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</blockquote>
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<p>waits up to 30 seconds for a file called errors.log to appear.</p>
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<blockquote>
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<p><code><waitfor maxwait="3" maxwaitunit="minute" checkevery="500"><br>
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<http url="http://localhost/myapp/index.html"/><br>
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</waitfor></code></p>
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</blockquote>
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<p>waits up to 3 minutes (and checks every 500 milliseconds) for a web server on localhost
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to serve up the specified URL.</p>
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<blockquote>
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<p><code><waitfor maxwait="10" maxwait="second"><br>
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<and><br>
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<socket server="dbserver" port="1521"/><br>
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<http url="http://webserver/mypage.html"/><br>
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</and><br>
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</waitfor></code></p>
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</blockquote>
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<p>waits up to 10 seconds for a server on the dbserver machine to begin listening
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on port 1521 and for the http://webserver/mypage.html web page
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to become available.</p>
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<hr><p align="center">Copyright © 2001 Apache Software Foundation. All rights
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Reserved.</p>
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</body>
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</html>
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