<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html><head><meta name="robots" content="noindex"> <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> <title>TCPSocket class Reference</title> <link href="doxygen.css" rel="stylesheet" type="text/css"> </head><body bgcolor="#ffffff"> <!-- Generated by Doxygen 1.2.5 on Thu Oct 4 15:33:01 2001 --> <center> <a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> </center> <hr><h1>TCPSocket Class Reference</h1>TCP sockets are used for stream based connected sessions between two sockets. bound server for TCP streams and sessions. <a href="#_details">More...</a> <p> <code>#include <<a class="el" href="socket_h-source.html">socket.h</a>></code> <p> <p>Inheritance diagram for TCPSocket: <p><center><img src="class_tcpsocket.gif" usemap="#TCPSocket_map" border="0"></center> <map name="TCPSocket_map"> <area href="class_socket.html" alt="Socket" shape="rect" coords="0,0,74,24"> </map> <a href="class_tcpsocket-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0> <tr><td colspan=2><br><h2>Public Methods</h2></td></tr> <tr><td nowrap align=right valign=top> </td><td valign=bottom><a class="el" href="class_tcpsocket.html#a0">TCPSocket</a> (const <a class="el" href="class_inetaddress.html">InetAddress</a> &bind, <a class="el" href="socket_h.html#a2">tpport_t</a> port, int backlog=5)</td></tr> <tr><td> </td><td><font size=-1><em>A TCP "server" is created as a TCP socket that is bound to a hardware address and port number on the local machine and that has a backlog queue to listen for remote connection requests.</em> <a href="#a0">More...</a><em></em></font><br><br></td></tr> <tr><td nowrap align=right valign=top><a class="el" href="class_inethostaddress.html">InetHostAddress</a> </td><td valign=bottom><a class="el" href="class_tcpsocket.html#a1">getRequest</a> (<a class="el" href="socket_h.html#a2">tpport_t</a> *port=NULL) const</td></tr> <tr><td> </td><td><font size=-1><em>Return address and port of next connection request.</em> <a href="#a1">More...</a><em></em></font><br><br></td></tr> <tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="class_tcpsocket.html#a2">Reject</a> (void)</td></tr> <tr><td> </td><td><font size=-1><em>Used to reject the next incoming connection request.</em></font><br><br></td></tr> <tr><td nowrap align=right valign=top><a class="el" href="class_inethostaddress.html">InetHostAddress</a> </td><td valign=bottom><a class="el" href="class_tcpsocket.html#a3">getLocal</a> (<a class="el" href="socket_h.html#a2">tpport_t</a> *port=NULL) const</td></tr> <tr><td> </td><td><font size=-1><em>Used to get local bound address.</em></font><br><br></td></tr> <tr><td nowrap align=right valign=top><a class="el" href="config_h.html#a17">bool</a> </td><td valign=bottom><a class="el" href="class_tcpsocket.html#a4">isPendingConnection</a> (<a class="el" href="thread_h.html#a1">timeout_t</a> timeout=TIMEOUT_INF)</td></tr> <tr><td> </td><td><font size=-1><em>not const -- jfc.</em></font><br><br></td></tr> <tr><td nowrap align=right valign=top> </td><td valign=bottom><a class="el" href="class_tcpsocket.html#a5">~TCPSocket</a> ()</td></tr> <tr><td> </td><td><font size=-1><em>Use base socket handler for ending this socket.</em></font><br><br></td></tr> <tr><td colspan=2><br><h2>Protected Methods</h2></td></tr> <tr><td nowrap align=right valign=top>virtual <a class="el" href="config_h.html#a17">bool</a> </td><td valign=bottom><a class="el" href="class_tcpsocket.html#b0">OnAccept</a> (const <a class="el" href="class_inethostaddress.html">InetHostAddress</a> &ia, <a class="el" href="socket_h.html#a2">tpport_t</a> port)</td></tr> <tr><td> </td><td><font size=-1><em>A method to call in a derived TCPSocket class that is acting as a server when a connection request is being accepted.</em> <a href="#b0">More...</a><em></em></font><br><br></td></tr> <tr><td colspan=2><br><h2>Friends</h2></td></tr> <tr><td nowrap align=right valign=top>class </td><td valign=bottom><a class="el" href="#l0">TCPStream</a></td></tr> <tr><td nowrap align=right valign=top>class </td><td valign=bottom><a class="el" href="#l1">SocketPort</a></td></tr> <tr><td nowrap align=right valign=top>class </td><td valign=bottom><a class="el" href="#l2">tcpstream</a></td></tr> </table> <hr><a name="_details"></a><h2>Detailed Description</h2> TCP sockets are used for stream based connected sessions between two sockets. bound server for TCP streams and sessions. <p> Both error recovery and flow control operate transparently for a TCP socket connection. The TCP socket base class is primary used to bind a TCP "server" for accepting TCP streams. <p> An implicit and unique TCPSocket object exists in Common C++ to represent a bound TCP socket acting as a "server" for receiving connection requests. This class is not part of <a class="el" href="class_tcpstream.html">TCPStream</a> because such objects normally perform no physical I/O (read or write operations) other than to specify a listen backlog queue and perform "accept" operations for pending connections. The Common C++ TCPSocket offers a Peek method to examine where the next pending connection is coming from, and a Reject method to flush the next request from the queue without having to create a session. <p> The TCPSocket also supports a "OnAccept" method which can be called when a <a class="el" href="class_tcpstream.html">TCPStream</a> related object is created from a TCPSocket. By creating a <a class="el" href="class_tcpstream.html">TCPStream</a> from a TCPSocket, an accept operation automatically occurs, and the TCPSocket can then still reject the client connection through the return status of it's OnAccept method. <p> <dl compact><dt> <b>Author(s): </b><dd> David Sugar <<a href="mailto:dyfet@tycho.com">dyfet@tycho.com</a>> </dl> <p> <hr><h2>Constructor & Destructor Documentation</h2> <a name="a0" doxytag="TCPSocket::TCPSocket"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> TCPSocket::TCPSocket ( </b></td> <td valign="bottom"><b> const <a class="el" href="class_inetaddress.html">InetAddress</a> & <em>bind</em>, </b></td> </tr> <tr> <td></td> <td><b> <a class="el" href="socket_h.html#a2">tpport_t</a> <em>port</em>, </b></td> </tr> <tr> <td></td> <td><b> int <em>backlog</em> = 5 ) </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> A TCP "server" is created as a TCP socket that is bound to a hardware address and port number on the local machine and that has a backlog queue to listen for remote connection requests. <p> If the server cannot be created, an exception is thrown.<dl compact><dt> <b>Parameters: </b><dd> <table border=0 cellspacing=2 cellpadding=0> <tr><td valign=top><em>bind</em> </td><td> local ip address or interface to use. </td></tr> <tr><td valign=top><em>port</em> </td><td> number to bind socket under. </td></tr> <tr><td valign=top><em>backlog</em> </td><td> size of connection request queue. </td></tr> </table> </dl> </td> </tr> </table> <a name="a5" doxytag="TCPSocket::~TCPSocket"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> TCPSocket::~TCPSocket ( </b></td> <td valign="bottom"><b> )<code> [inline]</code> </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> Use base socket handler for ending this socket. <p> </td> </tr> </table> <hr><h2>Member Function Documentation</h2> <a name="b0" doxytag="TCPSocket::OnAccept"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> <a class="el" href="config_h.html#a17">bool</a> TCPSocket::OnAccept ( </b></td> <td valign="bottom"><b> const <a class="el" href="class_inethostaddress.html">InetHostAddress</a> & <em>ia</em>, </b></td> </tr> <tr> <td></td> <td><b> <a class="el" href="socket_h.html#a2">tpport_t</a> <em>port</em> )<code> [inline, protected, virtual]</code> </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> A method to call in a derived TCPSocket class that is acting as a server when a connection request is being accepted. <p> The server can implement protocol specific rules to exclude the remote socket from being accepted by returning false. The Peek method can also be used for this purpose. <p> <dl compact><dt> <b>Returns: </b><dd> true if client should be accepted. </dl><dl compact><dt> <b>Parameters: </b><dd> <table border=0 cellspacing=2 cellpadding=0> <tr><td valign=top><em>ia</em> </td><td> internet host address of the client. </td></tr> <tr><td valign=top><em>port</em> </td><td> number of the client. </td></tr> </table> </dl> </td> </tr> </table> <a name="a2" doxytag="TCPSocket::Reject"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> void TCPSocket::Reject ( </b></td> <td valign="bottom"><b> void ) </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> Used to reject the next incoming connection request. <p> </td> </tr> </table> <a name="a3" doxytag="TCPSocket::getLocal"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> <a class="el" href="class_inethostaddress.html">InetHostAddress</a> TCPSocket::getLocal ( </b></td> <td valign="bottom"><b> <a class="el" href="socket_h.html#a2">tpport_t</a> * <em>port</em> = NULL ) const<code> [inline]</code> </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> Used to get local bound address. <p> <p> Reimplemented from <a class="el" href="class_socket.html#a4">Socket</a>. </td> </tr> </table> <a name="a1" doxytag="TCPSocket::getRequest"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> <a class="el" href="class_inethostaddress.html">InetHostAddress</a> TCPSocket::getRequest ( </b></td> <td valign="bottom"><b> <a class="el" href="socket_h.html#a2">tpport_t</a> * <em>port</em> = NULL ) const<code> [inline]</code> </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> Return address and port of next connection request. <p> This can be used instead of <a class="el" href="class_tcpsocket.html#b0">OnAccept</a>() to pre-evaluate connection requests. <p> <dl compact><dt> <b>Returns: </b><dd> host requesting a connection. </dl><dl compact><dt> <b>Parameters: </b><dd> <table border=0 cellspacing=2 cellpadding=0> <tr><td valign=top><em>port</em> </td><td> number of requestor. </td></tr> </table> </dl> </td> </tr> </table> <a name="a4" doxytag="TCPSocket::isPendingConnection"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> <a class="el" href="config_h.html#a17">bool</a> TCPSocket::isPendingConnection ( </b></td> <td valign="bottom"><b> <a class="el" href="thread_h.html#a1">timeout_t</a> <em>timeout</em> = TIMEOUT_INF )<code> [inline]</code> </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> not const -- jfc. <p> </td> </tr> </table> <hr><h2>Friends And Related Function Documentation</h2> <a name="l1" doxytag="TCPSocket::SocketPort"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> class SocketPort<code> [friend]</code> </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> </td> </tr> </table> <a name="l0" doxytag="TCPSocket::TCPStream"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> class TCPStream<code> [friend]</code> </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> </td> </tr> </table> <a name="l2" doxytag="TCPSocket::tcpstream"></a><p> <table width="100%" cellpadding="2" cellspacing="0" border="0"> <tr> <td class="md"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td nowrap valign="top"><b> class tcpstream<code> [friend]</code> </b></td> </tr> </table> </td> </tr> </table> <table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td> <p> </td> </tr> </table> <hr>The documentation for this class was generated from the following file:<ul> <li><a class="el" href="socket_h-source.html">socket.h</a></ul> <hr><address><small>Generated at Thu Oct 4 15:33:02 2001 for CommonC++ by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.gif" alt="doxygen" align="middle" border=0 width=110 height=53></a>1.2.5 written by <a href="mailto:dimitri@stack.nl">Dimitri van Heesch</a>, © 1997-2001</small></address> </body> </html>