| Index: net/third_party/udt/doc/doc/recv.htm
|
| ===================================================================
|
| --- net/third_party/udt/doc/doc/recv.htm (revision 78992)
|
| +++ net/third_party/udt/doc/doc/recv.htm (working copy)
|
| @@ -1,84 +0,0 @@
|
| -<!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>
|
| -<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
|
| -<title> UDT Reference</title>
|
| -<link rel="stylesheet" href="udtdoc.css" type="text/css" />
|
| -</head>
|
| -
|
| -<body>
|
| -<div class="ref_head"> UDT Reference: Functions</div>
|
| -
|
| -<h4 class="func_name"><strong>recv</strong></h4>
|
| -<p>The <b>recv</b> method reads certain amount of data into a local memory buffer.</p>
|
| -
|
| -<div class="code">int recv(<br />
|
| - UDTSOCKET <font color="#FFFFFF">u</font>,<br />
|
| - char* <font color="#FFFFFF">buf</font>,<br />
|
| - int <font color="#FFFFFF">len</font>,<br />
|
| - int <font color="#FFFFFF">flags</font><br />
|
| -);</div>
|
| -
|
| -<h5>Parameters</h5>
|
| -<dl>
|
| - <dt><i>u</i></dt>
|
| - <dd>[in] Descriptor identifying a connected socket.</dd>
|
| - <dt><em>buf</em></dt>
|
| - <dd>[out] The buffer used to store incoming data.</dd>
|
| - <dt><em>len</em></dt>
|
| - <dd>[in] Length of the buffer.</dd>
|
| - <dt><em>flags</em></dt>
|
| - <dd>[in] Ignored. For compatibility only.</dd>
|
| -</dl>
|
| -
|
| -<h5>Return Value</h5>
|
| -<p>On success, <b>recv</b> returns the actual size of received data. Otherwise UDT::ERROR is returned and specific error information can be retrieved by <a
|
| -href="error.htm">getlasterror</a>. If UDT_RCVTIMEO is set to a positive value, zero will be returned if no data is received before the timer expires.</p>
|
| -
|
| -<table width="100%" border="1" cellpadding="2" cellspacing="0" bordercolor="#CCCCCC">
|
| - <tr>
|
| - <td width="17%" class="table_headline"><strong>Error Name</strong></td>
|
| - <td width="17%" class="table_headline"><strong>Error Code</strong></td>
|
| - <td width="83%" class="table_headline"><strong>Comment</strong></td>
|
| - </tr>
|
| - <tr>
|
| - <td>ECONNLOST</td>
|
| - <td>2001</td>
|
| - <td>connection has been broken and no data left in receiver buffer.</td>
|
| - </tr>
|
| - <tr>
|
| - <td>ENOCONN</td>
|
| - <td>2002</td>
|
| - <td><i>u</i> is not connected.</td>
|
| - </tr>
|
| - <tr>
|
| - <td>EINVSOCK</td>
|
| - <td>5004</td>
|
| - <td><i>u</i> is not an valid socket.</td>
|
| - </tr>
|
| - <tr>
|
| - <td>EDGRAMILL</td>
|
| - <td>5010</td>
|
| - <td>cannot use <i>recv</i> in SOCK_DGRAM mode.</td>
|
| - </tr>
|
| - <tr>
|
| - <td>EASYNCRCV</td>
|
| - <td>6002</td>
|
| - <td><i>u</i> is non-blocking (UDT_RCVSYN = false) but no data is available.</td>
|
| - </tr>
|
| -</table>
|
| -
|
| -<h5>Description</h5>
|
| -<p>The <strong>recv</strong> method reads certain amount of data from the protocol buffer. If there is not enough data in the buffer, <strong>recv</strong> only reads the available data
|
| -in the protocol buffer and returns the actual size of data received. However, <strong>recv</strong> will never read more data than the buffer size indicates by <i>len</i>.</p>
|
| -<p>In blocking mode (default), <strong>recv</strong> waits until there is some data received into the receiver buffer. In non-blocking mode, <strong>recv</strong> returns immediately and
|
| -returns error if no data available.</p>
|
| -<p>If UDT_RCVTIMEO is set and the socket is in blocking mode, <strong>recv</strong> only waits a limited time specified by UDT_RCVTIMEO option. If there is still no data available when
|
| -the timer expires, zero will be returned. UDT_RCVTIMEO has no effect for non-blocking socket.</p>
|
| -
|
| -<h5>See Also</h5>
|
| -<p><strong><a href="select.htm">select</a>, <a href="send.htm">send</a>, <a href="sendfile.htm">sendfile</a>, <a href="recvfile.htm">recvfile</a></strong></p>
|
| -<p> </p>
|
| -
|
| -</body>
|
| -</html>
|
|
|
Chromium Code Reviews
