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<!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: Error Codes </div><h3><font color="#000080">UDT Error Codes List </font></h3><p>All UDT API will return an error upon a failed operation. Particularly, UDT defines UDT::INVALID_SOCK and UDT::ERROR as error returned values. (several routines return false as error value.) Application should check the return value against these two constants.</p><table width="100%" border="1" cellpadding="1" cellspacing="0" bordercolor="#CCCCCC"> <tr> <td width="15%" class="table_headline"><strong>Error Name</strong></td> <td width="15%" class="table_headline"><strong>Error Code</strong></td> <td width="70%" class="table_headline"><strong>Comment</strong></td> </tr> <tr> <td>SUCCESS</td> <td>0</td> <td>success operation.</td> </tr> <tr> <td>ECONNSETUP</td> <td>1000</td> <td>connection setup failure.</td> </tr> <tr> <td>ENOSERVER</td> <td>1001</td> <td>server does not exist.</td> </tr> <tr> <td>ECONNREJ</td> <td>1002</td> <td>connection request was rejected by server.</td> </tr> <tr> <td>ESOCKFAIL</td> <td>1003</td> <td>could not create/configure UDP socket.</td> </tr> <tr> <td>ESECFAIL</td> <td>1004</td> <td>connection request was aborted due to security reasons.</td> </tr> <tr> <td>ECONNFAIL</td> <td>2000</td> <td>connection failure.</td> </tr> <tr> <td>ECONNLOST</td> <td>2001</td> <td>connection was broken.</td> </tr> <tr> <td>ENOCONN</td> <td>2002</td> <td>connection does not exist.</td> </tr> <tr> <td>ERESOURCE</td> <td>3000</td> <td>system resource failure.</td> </tr> <tr> <td>ETHREAD</td> <td>3001</td> <td>could not create new thread.</td> </tr> <tr> <td>ENOBUF</td> <td>3002</td> <td>no memory space.</td> </tr> <tr> <td>EFILE</td> <td>4000</td> <td>file access error.</td> </tr> <tr> <td>EINVRDOFF</td> <td>4001</td> <td>invalid read offset.</td> </tr> <tr> <td>ERDPERM</td> <td>4002</td> <td>no read permission.</td> </tr> <tr> <td>EINVWROFF</td> <td>4003</td> <td>invalid write offset.</td> </tr> <tr> <td>EWRPERM</td> <td>4004</td> <td>no write permission.</td> </tr> <tr> <td>EINVOP</td> <td>5000</td> <td>operation not supported.</td> </tr> <tr> <td>EBOUNDSOCK</td> <td>5001</td> <td>cannot execute the operation on a bound socket.</td> </tr> <tr> <td>ECONNSOCK</td> <td>5002</td> <td>cannot execute the operation on a connected socket.</td> </tr> <tr> <td>EINVPARAM</td> <td>5003</td> <td>bad parameters.</td> </tr> <tr> <td>EINVSOCK</td> <td>5004</td> <td>invalid UDT socket.</td> </tr> <tr> <td>EUNBOUNDSOCK</td> <td>5005</td> <td>cannot listen on unbound socket.</td> </tr> <tr> <td>ENOLISTEN</td> <td>5006</td> <td>(accept) socket is not in listening state.</td> </tr> <tr> <td>ERDVNOSERV</td> <td>5007</td> <td>rendezvous connection process does not allow listen and accept call.</td> </tr> <tr> <td>ERDVUNBOUND</td> <td>5008</td> <td>rendezvous connection setup is enabled but bind has not been called before connect.</td> </tr> <tr> <td>ESTREAMILL</td> <td>5009</td> <td>operation not supported in SOCK_STREAM mode.</td> </tr> <tr> <td>EDGRAMILL</td> <td>5010</td> <td>operation not supported in SOCK_DGRAM mode.</td> </tr> <tr> <td>EDUPLISTEN</td> <td>5011</td> <td>another socket is already listening on the same UDP port.</td> </tr> <tr> <td>ELARGEMSG</td> <td>5012</td> <td>message is too large to be hold in the sending buffer.</td> </tr> <tr> <td>EASYNCFAIL</td> <td>6000</td> <td>non-blocking call failure.</td> </tr> <tr> <td>EASYNCSND</td> <td>6001</td> <td>no buffer available for sending.</td> </tr> <tr> <td>EASYNCRCV</td> <td>6002</td> <td>no data available for read.</td> </tr></table><h5>See Also</h5><p><strong><a href="error.htm">getlasterror</a></strong></p><p> </p></body></html>⌨️ 快捷键说明
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