twisted.internet.win32eventreactor.Process.html [plain text]
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<a href="twisted.html">Package twisted</a> ::
<a href="twisted.internet.html">Package internet</a> ::
<a href="twisted.internet.win32eventreactor.html">Module win32eventreactor</a> ::
Class Process
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<!-- =========== START OF CLASS DESCRIPTION =========== -->
<h2 class="class">Class Process</h2>
<pre class="base-tree">
<a href="twisted.persisted.styles.Ephemeral.html"><code>Ephemeral</code></a> --+
|
<a href="twisted.python.log.Logger.html"><code>Logger</code></a> --+
|
<a href="twisted.internet.abstract.FileDescriptor.html"><code>FileDescriptor</code></a> --+
|
<b>Process</b>
</pre><br />
<hr/>
<p>A process that integrates with the Twisted event loop.</p>
Issues:
<ul>
<li>
stdin close is actually signalled by process shutdown, which is
wrong. Solution is to register stdin pipe with event loop and check
for the correct event type - this needs to be implemented.
</li>
</ul>
If your subprocess is a python program, you need to:
<ul>
<li>
Run python.exe with the '-u' command line option - this turns on
unbuffered I/O. Buffering stdout/err/in can cause problems, see e.g.
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q1903
</li>
<li>
If you don't want Windows messing with data passed over
stdin/out/err, set the pipes to be in binary mode:
<pre class="literalblock">
import os, sys, mscvrt
msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
</pre>
</li>
</ul>
<hr/>
<!-- =========== START OF METHOD SUMMARY =========== -->
<table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="summary">
<th colspan="2">Method Summary</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><a name="__init__"></a><span class="summary-sig"><span class="summary-sig-name">__init__</span>(<span class=summary-sig-arg>self</span>,
<span class=summary-sig-arg>reactor</span>,
<span class=summary-sig-arg>protocol</span>,
<span class=summary-sig-arg>command</span>,
<span class=summary-sig-arg>args</span>,
<span class=summary-sig-arg>environment</span>,
<span class=summary-sig-arg>path</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><a name="_closeStdin"></a><span class="summary-sig"><span class="summary-sig-name">_closeStdin</span>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><a name="closeStderr"></a><span class="summary-sig"><span class="summary-sig-name">closeStderr</span>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.win32eventreactor.Process.html#closeStdin" class="summary-sig-name"><code>closeStdin</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Close the process' stdin.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><a name="closeStdout"></a><span class="summary-sig"><span class="summary-sig-name">closeStdout</span>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.win32eventreactor.Process.html#connectionLost" class="summary-sig-name"><code>connectionLost</code></a>(<span class=summary-sig-arg>self</span>,
<span class=summary-sig-arg>reason</span>)</span></code>
<br />
Shut down resources.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.win32eventreactor.Process.html#connectionLostNotify" class="summary-sig-name"><code>connectionLostNotify</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Will be called 3 times, by stdout/err threads and process handle.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.win32eventreactor.Process.html#doReadErr" class="summary-sig-name"><code>doReadErr</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Runs in thread.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.win32eventreactor.Process.html#doReadOut" class="summary-sig-name"><code>doReadOut</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Runs in thread.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.win32eventreactor.Process.html#doWrite" class="summary-sig-name"><code>doWrite</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Runs in thread.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><a name="errConnectionLost"></a><span class="summary-sig"><span class="summary-sig-name">errConnectionLost</span>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><a name="inConnectionLost"></a><span class="summary-sig"><span class="summary-sig-name">inConnectionLost</span>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.win32eventreactor.Process.html#loseConnection" class="summary-sig-name"><code>loseConnection</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Close the process' stdout, in and err.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><a name="outConnectionLost"></a><span class="summary-sig"><span class="summary-sig-name">outConnectionLost</span>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><a name="signalProcess"></a><span class="summary-sig"><span class="summary-sig-name">signalProcess</span>(<span class=summary-sig-arg>self</span>,
<span class=summary-sig-arg>signalID</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.win32eventreactor.Process.html#write" class="summary-sig-name"><code>write</code></a>(<span class=summary-sig-arg>self</span>,
<span class=summary-sig-arg>data</span>)</span></code>
<br />
Write data to the process' stdin.</td></tr>
<tr bgcolor="#e8f0f8" class="group">
<th colspan="2"> Inherited from FileDescriptor</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#_postLoseConnection" class="summary-sig-name"><code>_postLoseConnection</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Called after a loseConnection(), when all data has been written.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#fileno" class="summary-sig-name"><code>fileno</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
File Descriptor number for select().</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#pauseProducing" class="summary-sig-name"><code>pauseProducing</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#registerProducer" class="summary-sig-name"><code>registerProducer</code></a>(<span class=summary-sig-arg>self</span>,
<span class=summary-sig-arg>producer</span>,
<span class=summary-sig-arg>streaming</span>)</span></code>
<br />
Register to receive data from a producer.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#resumeProducing" class="summary-sig-name"><code>resumeProducing</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#startReading" class="summary-sig-name"><code>startReading</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Start waiting for read availability.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#startWriting" class="summary-sig-name"><code>startWriting</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Start waiting for write availability.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#stopConsuming" class="summary-sig-name"><code>stopConsuming</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Stop consuming data.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#stopProducing" class="summary-sig-name"><code>stopProducing</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#stopReading" class="summary-sig-name"><code>stopReading</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Stop waiting for read availability.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#stopWriting" class="summary-sig-name"><code>stopWriting</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Stop waiting for write availability.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#unregisterProducer" class="summary-sig-name"><code>unregisterProducer</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Stop consuming data from a producer, without disconnecting.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#writeSequence" class="summary-sig-name"><code>writeSequence</code></a>(<span class=summary-sig-arg>self</span>,
<span class=summary-sig-arg>iovec</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.internet.abstract.FileDescriptor.html#writeSomeData" class="summary-sig-name"><code>writeSomeData</code></a>(<span class=summary-sig-arg>self</span>,
<span class=summary-sig-arg>data</span>)</span></code>
<br />
Write as much as possible of the given data, immediately.</td></tr>
<tr bgcolor="#e8f0f8" class="group">
<th colspan="2"> Inherited from Logger</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.python.log.Logger.html#logPrefix" class="summary-sig-name"><code>logPrefix</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Override this method to insert custom logging behavior.</td></tr>
<tr bgcolor="#e8f0f8" class="group">
<th colspan="2"> Inherited from Ephemeral</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.persisted.styles.Ephemeral.html#__getstate__" class="summary-sig-name"><code>__getstate__</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"> </font></td>
<td><code><span class="summary-sig"><a href="twisted.persisted.styles.Ephemeral.html#__setstate__" class="summary-sig-name"><code>__setstate__</code></a>(<span class=summary-sig-arg>self</span>,
<span class=summary-sig-arg>state</span>)</span></code>
</td></tr>
</table><br />
<!-- =========== START OF CLASS VARIABLE SUMMARY =========== -->
<table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="summary">
<th colspan="2">Class Variable Summary</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>str</code></font></td>
<td><b><a href="twisted.internet.win32eventreactor.Process.html#buffer"><code>buffer</code></a></b> = <span title="''"><code><span class="variable-quote">'</span><span class="variable-quote">'</span> </code>
</span></td></tr>
<tr bgcolor="#e8f0f8" class="group">
<th colspan="2"> Inherited from FileDescriptor</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>tuple</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#__implements__"><code>__implements__</code></a></b> = <span title="(<class twisted.internet.interfaces.IProducer at 0x827b064>, <class twisted.internet.interfaces.IReadWriteDescriptor at 0x827d20c>, <class twisted.internet.interfaces.IConsumer at 0x824feb4>, <class twisted.internet.interfaces.ITransport at 0x8254024>)"><code>(<class twisted.internet.interfaces.IPr<span class="variable-ellipsis">...</span></code>
</span></td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>int</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#bufferSize"><code>bufferSize</code></a></b> = <span title="65536">65536 </span></td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>int</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#connected"><code>connected</code></a></b> = <span title="0">0 </span></td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>str</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#dataBuffer"><code>dataBuffer</code></a></b> = <span title="''"><code><span class="variable-quote">'</span><span class="variable-quote">'</span> </code>
</span></td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>int</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#disconnected"><code>disconnected</code></a></b> = <span title="0">0 </span></td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>int</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#disconnecting"><code>disconnecting</code></a></b> = <span title="0">0 </span></td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>int</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#offset"><code>offset</code></a></b> = <span title="0">0 </span></td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>NoneType</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#producer"><code>producer</code></a></b> = <span title="None">None </span></td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>int</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#producerPaused"><code>producerPaused</code></a></b> = <span title="0">0 </span></td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>int</code></font></td>
<td><b><a href="twisted.internet.abstract.FileDescriptor.html#streamingProducer"><code>streamingProducer</code></a></b> = <span title="0">0 </span></td></tr>
</table><br />
<!-- =========== START OF METHOD DETAILS =========== -->
<table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="details">
<th colspan="2">Method Details</th></tr>
</table>
<a name="closeStdin"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
<h3><span class="sig"><span class="sig-name">closeStdin</span>(<span class=sig-arg>self</span>)</span>
</h3>
Close the process' stdin.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
<a name="connectionLost"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
<h3><span class="sig"><span class="sig-name">connectionLost</span>(<span class=sig-arg>self</span>,
<span class=sig-arg>reason</span>=<span class=sig-default>None</span>)</span>
</h3>
Shut down resources.
<dl><dt></dt><dd>
<dl><dt><b>Overrides:</b></dt>
<dd><a href="twisted.internet.abstract.FileDescriptor.html#connectionLost"><code>twisted.internet.abstract.FileDescriptor.connectionLost</code></a></dd>
</dl>
</dd></dl>
</td></tr></table>
<a name="connectionLostNotify"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
<h3><span class="sig"><span class="sig-name">connectionLostNotify</span>(<span class=sig-arg>self</span>)</span>
</h3>
Will be called 3 times, by stdout/err threads and process
handle.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
<a name="doReadErr"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
<h3><span class="sig"><span class="sig-name">doReadErr</span>(<span class=sig-arg>self</span>)</span>
</h3>
Runs in thread.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
<a name="doReadOut"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
<h3><span class="sig"><span class="sig-name">doReadOut</span>(<span class=sig-arg>self</span>)</span>
</h3>
Runs in thread.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
<a name="doWrite"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
<h3><span class="sig"><span class="sig-name">doWrite</span>(<span class=sig-arg>self</span>)</span>
</h3>
Runs in thread.
<dl><dt></dt><dd>
<dl><dt><b>Overrides:</b></dt>
<dd><a href="twisted.internet.abstract.FileDescriptor.html#doWrite"><code>twisted.internet.abstract.FileDescriptor.doWrite</code></a></dd>
</dl>
</dd></dl>
</td></tr></table>
<a name="loseConnection"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
<h3><span class="sig"><span class="sig-name">loseConnection</span>(<span class=sig-arg>self</span>)</span>
</h3>
Close the process' stdout, in and err.
<dl><dt></dt><dd>
<dl><dt><b>Overrides:</b></dt>
<dd><a href="twisted.internet.abstract.FileDescriptor.html#loseConnection"><code>twisted.internet.abstract.FileDescriptor.loseConnection</code></a></dd>
</dl>
</dd></dl>
</td></tr></table>
<a name="write"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
<h3><span class="sig"><span class="sig-name">write</span>(<span class=sig-arg>self</span>,
<span class=sig-arg>data</span>)</span>
</h3>
Write data to the process' stdin.
<dl><dt></dt><dd>
<dl><dt><b>Overrides:</b></dt>
<dd><a href="twisted.internet.abstract.FileDescriptor.html#write"><code>twisted.internet.abstract.FileDescriptor.write</code></a></dd>
</dl>
</dd></dl>
</td></tr></table>
<br />
<!-- =========== START OF CLASS VARIABLE DETAILS =========== -->
<table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="details">
<th colspan="2">Class Variable Details</th></tr>
</table>
<table width="100%" class="var-details" bgcolor="#e0e0e0"><tr><td>
<a name="buffer"></a>
<h3>buffer</h3>
<dl>
<dt></dt>
<dd>
<dl>
<dt><b>Type:</b></dt>
<dd>
<code>str</code>
</dd>
<span title="''"> <dt><b>Value:</b></dt>
<dd><table><tr><td>
<pre class="variable">
<span class="variable-quote">'</span><span class="variable-quote">'</span> </pre>
</td></tr></table></dd>
</span> </dl>
</dd>
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