1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2<html xml:lang="en-US" lang="en-US" xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <meta http-equiv="Content-Style-Type" content="text/css" /> 6 <link rel="stylesheet" href="../../css/manpage.css" type="text/css" /> 7<title>Close</title> 8 </head> 9 <body> 10<h1><CODE>nn::socket::Close</CODE> Function</h1> 11<h2>Syntax</h2> 12 <div class="section"> 13 <pre class="definition"> 14s32 Close( 15 s32 s 16); 17</pre> 18 </div> 19<h2>Arguments</h2> 20 <div class="section"> 21 <table class="arguments"> 22 <thead> 23 <tr> 24 <td width="15" /> 25<th>Name</th> 26<td>Description</td> 27 </tr> 28 </thead> 29 <tr> 30<td>in</td> 31<th>s</th> 32<td>Specifies the socket descriptor. Specify a socket descriptor created using the <a href="../../nn/socket/Socket.html"><CODE>Socket</CODE></a> or <a href="../../nn/socket/Accept.html"><CODE>Accept</CODE></a> function.</td> 33 </tr> </table> 34 </div> 35<h2>Return Values</h2> 36<div class="section">Returns <CODE>0</CODE> if successful. </div> 37<h2>Description</h2> 38 <div class="section"> 39<p>Closes a socket. Closed sockets can no longer be used.</p><p>If there are currently any blocked function calls that used the socket that this function closes, the blocks are released and those functions return their various predefined errors. If you close a stream socket (<CODE>SOCK_STREAM</CODE>) that has not been set to non-blocking mode by the <a href="../../nn/socket/Fcntl.html"><CODE>Fcntl</CODE></a> function, the connection is closed according to the configured <a href="../../nn/socket/Linger/Overview.html"><CODE>Linger</CODE></a> options. The default behavior is for <CODE>Close</CODE> to return immediately without blocking. Then, after any data remaining to be sent is automatically transferred in the background, the resources used by the socket are released.</p><!-- write here --></div> 40<h2>See Also</h2> 41 <div class="section"> 42<p class="reference"><a href="../../nn/socket/Socket.html"><CODE>Socket</CODE></a>, <a href="../../nn/socket/Fcntl.html"><CODE>Fcntl</CODE></a>, <a href="../../nn/socket/Shutdown.html"><CODE>Shutdown</CODE></a><br /> </p> 43 </div> 44<h2>Revision History</h2> 45 <div class="section"> 46 <dl class="history"> 47 <dt>2010/06/14</dt> 48<dd>Initial version.<br /> 49 </dd> 50 </dl> 51 </div> 52 <hr><p>CONFIDENTIAL</p></body> 53</html>