<!DOCTYPE html PUBLIC "‐//W3C//DTD XHTML 1.1//EN"
        "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">     <html
xmlns="http://www.w3.org/1999/xhtml"> <head>
    <link            rel="stylesheet"             type="text/css"
href="../../../style.css" title="style" />
    <link  rel="stylesheet"  type="text/css"  href="../style.css"
title="style" />
    <meta             http‐equiv="content‐type"              con‐
tent="text/html;charset=utf‐8" />

    <title>netinet_tcp.h.0p ‐ Linux manual page</title> </head>

<body>

<div        class="page‐top"><a       id="top_of_page"></a></div>
<!‐‐%%%TOP_BAR%%%‐‐> <!‐‐%%%PAGE_START%%%‐‐>

<table class="sec‐table"> <tr>
    <td>
        <p class="section‐dir"> <a href="#PROLOG">PROLOG</a> | <a
href="#NAME">NAME</a>  |  <a  href="#SYNOPSIS">SYNOPSIS</a>  | <a
href="#DESCRIPTION">DESCRIPTION</a> |  <a  href="#APPLICATION_US‐
AGE">APPLICATION&nbsp;USAGE</a>   |  <a  href="#RATIONALE">RATIO‐
NALE</a>   |   <a    href="#FUTURE_DIRECTIONS">FUTURE&nbsp;DIREC‐
TIONS</a>    |   <a   href="#SEE_ALSO">SEE&nbsp;ALSO</a>   |   <a
href="#COPYRIGHT">COPYRIGHT</a>
        </p>
    </td>
    <td class="search‐box">
        <div class="man‐search‐box">

            <form                method="get"                 ac‐
tion="http://www.google.com/search">
                <fieldset class="man‐search">
                    <input    type="text"    name="q"   size="10"
maxlength="255" value="" />
                    <input type="hidden"  name="sitesearch"  val‐
ue="man7.org/linux/man‐pages" />
                    <input  type="submit" name="sa" value="Search
online pages" />
                </fieldset>
            </form>

        </div>
    </td>
    <td> </td> </tr> </table>

<pre> <span class="headline">netinet_tcp.h(0P)         POSIX Pro‐
grammer’s  Manual         netinet_tcp.h(0P)</span>  </pre> <h2><a
id="PROLOG" href="#PROLOG"></a>PROLOG  &nbsp; &nbsp; &nbsp;  &nb‐
sp;        <a        href="#top_of_page"><span        class="top‐
link">top</span></a></h2><pre>
       This manual page is part of the POSIX Programmer’s Manual.
The Linux
       implementation of this interface may differ (consult the
       corresponding  Linux  manual page for details of Linux be‐
havior), or
       the interface may not be  implemented  on  Linux.   </pre>
<h2><a id="NAME" href="#NAME"></a>NAME  &nbsp; &nbsp; &nbsp; &nb‐
sp;        <a        href="#top_of_page"><span        class="top‐
link">top</span></a></h2><pre>
       netinet/tcp.h  — definitions for the Internet Transmission
Control
       Protocol (TCP) </pre> <h2><a  id="SYNOPSIS"  href="#SYNOP‐
SIS"></a>SYNOPSIS      &nbsp;    &nbsp;    &nbsp;    &nbsp;    <a
href="#top_of_page"><span                             class="top‐
link">top</span></a></h2><pre>
       #include  &lt;netinet/tcp.h&gt; </pre> <h2><a id="DESCRIP‐
TION" href="#DESCRIPTION"></a>DESCRIPTION  &nbsp;  &nbsp;  &nbsp;
&nbsp;       <a       href="#top_of_page"><span       class="top‐
link">top</span></a></h2><pre>
       The <i>&lt;netinet/tcp.h&gt;</i> header shall  define  the
following symbolic
       constant  for  use  as  a socket option at the IPPROTO_TCP
level:

       TCP_NODELAY Avoid coalescing of small segments.

       The implementation need not allow the value of the  option
to be set
       via   <i>setsockopt</i>()  or  retrieved  via  <i>getsock‐
opt</i>().

       <i>The  following  sections  are  informative.</i>  </pre>
<h2><a  id="APPLICATION_USAGE"  href="#APPLICATION_USAGE"></a>AP‐
PLICATION    USAGE     &nbsp;    &nbsp;    &nbsp;    &nbsp;    <a
href="#top_of_page"><span                             class="top‐
link">top</span></a></h2><pre>
       None.    </pre>   <h2><a   id="RATIONALE"    href="#RATIO‐
NALE"></a>RATIONALE     &nbsp;    &nbsp;    &nbsp;    &nbsp;   <a
href="#top_of_page"><span                             class="top‐
link">top</span></a></h2><pre>
       None.   </pre>  <h2><a  id="FUTURE_DIRECTIONS"  href="#FU‐
TURE_DIRECTIONS"></a>FUTURE DIRECTIONS  &nbsp; &nbsp; &nbsp; &nb‐
sp;        <a        href="#top_of_page"><span        class="top‐
link">top</span></a></h2><pre>
       None.    </pre>   <h2><a   id="SEE_ALSO"    href="#SEE_AL‐
SO"></a>SEE    ALSO     &nbsp;    &nbsp;    &nbsp;    &nbsp;   <a
href="#top_of_page"><span                             class="top‐
link">top</span></a></h2><pre>
       <a           href="../man0/sys_socket.h.0p.html">sys_sock‐
et.h(0p)</a>

       The  System  Interfaces   volume   of   POSIX.1‐2008,   <a
href="../man3/getsockopt.3p.html">getsockopt(3p)</a>,
       <a    href="../man3/setsockopt.3p.html">setsockopt(3p)</a>
</pre>  <h2><a   id="COPYRIGHT"   href="#COPYRIGHT"></a>COPYRIGHT
&nbsp;   &nbsp;   &nbsp;   &nbsp;   <a  href="#top_of_page"><span
class="top‐link">top</span></a></h2><pre>
       Portions of this text  are  reprinted  and  reproduced  in
electronic form
       from  IEEE Std 1003.1, 2013 Edition, Standard for Informa‐
tion
       Technology ‐‐ Portable Operating System Interface (POSIX),
The Open
       Group  Base  Specifications Issue 7, Copyright (C) 2013 by
the
       Institute of Electrical and Electronics Engineers, Inc and
The Open
       Group.  (This is POSIX.1‐2008 with the 2013 Technical Cor‐
rigendum 1
       applied.) In the event of  any  discrepancy  between  this
version and
       the  original IEEE and The Open Group Standard, the origi‐
nal IEEE and
       The Open Group Standard is the referee document. The orig‐
inal
       Standard     can     be     obtained    online    at    <a
href="http://www.unix.org/online.html">http://www.unix.org/on‐
line.html</a> .

       Any typographical or formatting errors that appear in this
page are
       most likely to have been introduced during the  conversion
of the
       source  files  to  man page format. To report such errors,
see
       <a      href="https://www.kernel.org/doc/man‐pages/report‐
ing_bugs.html">https://www.kernel.org/doc/man‐pages/report‐
ing_bugs.html</a> .

<span class="footline">IEEE/The Open  Group                  2013
netinet_tcp.h(0P)</span> </pre>

<hr class="end‐man‐text" />

<hr class="start‐footer" />

<div class="footer">

<table class="colophon‐table">
    <tr>
    <td class="pub‐info">
        <p>
            HTML rendering created 2019‐08‐02
            by  <a  href="http://man7.org/mtk/index.html">Michael
Kerrisk</a>,
            author of
            <a  href="http://man7.org/tlpi/"><em>The  Linux  Pro‐
gramming Interface</em></a>,
            maintainer of the
            <a href="https://www.kernel.org/doc/man‐pages/">Linux
<em>man‐pages</em> project</a>.
        </p>
        <p>
            For details of in‐depth
            <strong>Linux/UNIX system programming training  cour‐
ses</strong>
            that  I  teach,  look <a href="http://man7.org/train‐
ing/">here</a>.
        </p>
        <p>
            Hosting   by    <a    href="http://www.jambit.com/in‐
dex_en.html">jambit GmbH</a>.
        </p>
        <p>
            <a href="http://validator.w3.org/check?uri=referer">
            <img src="http://www.w3.org/Icons/valid‐xhtml11"
                alt="Valid XHTML 1.1" height="31" width="88" />
            </a>
        </p>
    </td>
    <td class="colophon‐divider">
    </td>
    <td class="tlpi‐cover">
        <a                      href="http://man7.org/tlpi/"><img
src="http://man7.org/tlpi/cover/TLPI‐front‐cover‐vsmall.png"
alt="Cover of TLPI" /></a>
    </td>
    </tr> </table>

</div>

<hr class="end‐footer" />

</body> </html>