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curlmultiobject.html
<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>PycURL: CurlMulti Objects</title> <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" /> <meta name="revisit-after" content="30 days" /> <meta name="robots" content="noarchive, index, follow" /> </head> <body> <h1>CurlMulti Object</h1> <p>CurlMulti objects have the following methods: </p> <dl> <dt><code>close()</code> -> <em>None</em></dt> <dd> <p>Corresponds to <a href="http://curl.haxx.se/libcurl/c/curl_multi_cleanup.html"><code>curl_multi_cleanup()</code></a> in libcurl. This method is automatically called by pycurl when a CurlMulti object no longer has any references to it, but can also be called explicitly.</p> </dd> <dt><code>perform()</code> -> <em>tuple of status and the number of active Curl objects</em></dt> <dd> <p>Corresponds to <a href="http://curl.haxx.se/libcurl/c/curl_multi_perform.html"><code>curl_multi_perform()</code></a> in libcurl.</p> </dd> <dt><code> add_handle(</code><em>Curl object</em><code>) </code>-> <em>None</em></dt> <dd> <p>Corresponds to <a href="http://curl.haxx.se/libcurl/c/curl_multi_add_handle.html"><code>curl_multi_add_handle()</code></a> in libcurl. This method adds an existing and valid Curl object to the CurlMulti object.</p> <p>IMPORTANT NOTE: add_handle does not implicitly add a Python reference to the Curl object (and thus does not increase the reference count on the Curl object).</p> </dd> <dt><code>remove_handle(</code><em>Curl object</em><code>)</code> -> <em>None</em></dt> <dd> <p>Corresponds to <a href="http://curl.haxx.se/libcurl/c/curl_multi_remove_handle.html"><code>curl_multi_remove_handle()</code></a> in libcurl. This method removes an existing and valid Curl object from the CurlMulti object.</p> <p>IMPORTANT NOTE: remove_handle does not implicitly remove a Python reference from the Curl object (and thus does not decrease the reference count on the Curl object).</p> </dd> <dt><code>fdset()</code> -> <em>triple of lists with active file descriptors, readable, writeable, exceptions.</em></dt> <dd> <p>Corresponds to <a href="http://curl.haxx.se/libcurl/c/curl_multi_fdset.html"><code>curl_multi_fdset()</code></a> in libcurl. This method extracts the file descriptor information from a CurlMulti object. The returned lists can be used with the <code>select</code> module to poll for events.</p> <p>Example usage:</p> <pre> import pycurl c = pycurl.Curl() c.setopt(pycurl.URL, "http://curl.haxx.se") m = pycurl.CurlMulti() m.add_handle(c) while 1: ret, num_handles = m.perform() if ret != pycurl.E_CALL_MULTI_PERFORM: break while num_handles: apply(select.select, m.fdset() + (1,)) while 1: ret, num_handles = m.perform() if ret != pycurl.E_CALL_MULTI_PERFORM: break </pre> </dd> <dt><code>select(</code><em>timeout</em><code>)</code> -> <em>number of ready file descriptors or -1 on timeout</em></dt> <dd> <p>This is a convenience function which simplifies the combined use of <code>fdset()</code> and the <code>select</code> module.</p> <p>Example usage:</p> <pre>import pycurl c = pycurl.Curl() c.setopt(pycurl.URL, "http://curl.haxx.se") m = pycurl.CurlMulti() m.add_handle(c) while 1: ret, num_handles = m.perform() if ret != pycurl.E_CALL_MULTI_PERFORM: break while num_handles: ret = m.select(1.0) if ret == -1: continue while 1: ret, num_handles = m.perform() if ret != pycurl.E_CALL_MULTI_PERFORM: break </pre> </dd> <dt><code>info_read(</code><em>[max]</em><code>)</code> -> <em>numberof queued messages, a list of successful objects, a list of failed objects</em></dt> <dd> <p>Corresponds to the <a href="http://curl.haxx.se/libcurl/c/curl_multi_info_read.html"><code>curl_multi_info_read()</code></a> function in libcurl. This method extracts at most <em>max</em> messages from the multi stack and returns them in two lists. The first list contains the handles which completed successfully and the second list contains a tuple <em><curl object, curl error number, curl error message></em> for each failed curl object. The number of queued messages after this method has been called is also returned.</p> </dd> </dl> <hr /> <p> <a href="http://validator.w3.org/check/referer"><img align="right" src="http://www.w3.org/Icons/valid-xhtml10" alt="Valid XHTML 1.0!" height="31" width="88" border="0" /></a> $Id: curlmultiobject.html,v 1.5 2005/03/11 13:32:12 kjetilja Exp $ </p> </body> </html>
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