📄 websopenlisten.htm
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<title>websOpenListen -- GoAhead WebServer API</title>
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<TD class=title-left><b>websOpenListen</b></TD>
<TD class=title-center><b>GoAhead WebServer API</b></TD>
<TD class=title-right><B>GoAhead EMF</B></TD>
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<h2>Synopsis</h2>
<p>Open the TCP/IP port used by the web server to listen for browser requests</p>
<h2>Prototype</h2>
<pre>
#include "webs.h"
int <b>websOpenListen</b>(int port, int retries);
</pre>
<h2>Parameters</h2>
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<TD width=40>none</TD>
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<h2>Description</h2>
<P>The websOpenListen procedure opens the TCP/IP port on which the GoAhead WebServer
listens for browser requests. You should call
<A href="websCloseListen.htm">websCloseListen</A> to close the existing listen port before
calling websOpenListen. Normally websOpenListen is called
automatically when you call <A href="websOpen.htm">websOpen</A> .</P>
<P> </P>
<P>The <EM>port </EM>parameter specifies the TCP/IP to
open. If this cannot be opened and <EM>retries </EM>is greater than zero, the
next port in sequence will be opened for up to <EM>retries </EM>times until a port is
successfully opened. To determine the port
number actually opened, call <a href="websGetPort.htm">websGetPort</a>.</P>
<h2>Return Value</h2>
<p>Returns 0 if the open succeeds, otherwise -1 is returned.</p>
<h2>Example</h2>
<pre>
websCloseListen();
websOpenListen(80, 5);
</pre>
<h2>See Also</h2>
<p>
<A href="websClose.htm">websClose</A>,
<A href="websCloseListen.htm">websCloseListen</A>,
<A href="websOpenListen.htm">websOpenListen</A>
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