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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"/><title>5.2 Connection Manager</title><link rel="stylesheet" type="text/css" href="../scribble.css" title="default"/><link rel="stylesheet" type="text/css" href="../racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-style.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../doc-site.css" title="default"/><script type="text/javascript" src="../scribble-common.js"></script><script type="text/javascript" src="../manual-racket.js"></script><script type="text/javascript" src="../doc-site.js"></script><script type="text/javascript" src="../local-redirect/local-redirect.js"></script><script type="text/javascript" src="../local-redirect/local-user-redirect.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--></head><body 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class="tocviewlink" data-pltdoc="x">Timers</a></td></tr><tr><td align="right">5.2 </td><td><a href="" class="tocviewselflink" data-pltdoc="x">Connection Manager</a></td></tr><tr><td align="right">5.3 </td><td><a href="closure.html" class="tocviewlink" data-pltdoc="x">Serializable Closures</a></td></tr><tr><td align="right">5.4 </td><td><a href="cache-table.html" class="tocviewlink" data-pltdoc="x">Cache Table</a></td></tr><tr><td align="right">5.5 </td><td><a href="mime-types.html" class="tocviewlink" data-pltdoc="x">MIME Types</a></td></tr><tr><td align="right">5.6 </td><td><a href="mod-map.html" class="tocviewlink" data-pltdoc="x">Serialization Utilities</a></td></tr><tr><td align="right">5.7 </td><td><a href="url-param.html" class="tocviewlink" data-pltdoc="x">URL Param</a></td></tr><tr><td align="right">5.8 </td><td><a href="gzip.html" class="tocviewlink" data-pltdoc="x">GZip</a></td></tr><tr><td align="right">5.9 </td><td><a href="misc-util.html" class="tocviewlink" data-pltdoc="x">Miscellaneous Utilities</a></td></tr></table></div></div></div><div class="tocsub"><div class="tocsubtitle">On this page:</div><table class="tocsublist" cellspacing="0"><tr><td><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._connection%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">connection</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._connection-manager~3f%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym">connection-<wbr></wbr>manager?</span></a></td></tr><tr><td><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._start-connection-manager%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">start-<wbr></wbr>connection-<wbr></wbr>manager</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._new-connection%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">new-<wbr></wbr>connection</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._kill-connection%21%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">kill-<wbr></wbr>connection!</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._adjust-connection-timeout%21%29%29" class="tocsublink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">adjust-<wbr></wbr>connection-<wbr></wbr>timeout!</span></span></a></td></tr></table></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, "6.7", "../");" onfocus="this.style.color="black"; this.style.textAlign="left"; if (this.value == "...search manuals...") this.value="";" onblur="if (this.value.match(/^ *$/)) { this.style.color="#888"; this.style.textAlign="center"; this.value="...search manuals..."; }"/></form> <a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot("6.7");">top</a></span><span class="navright"> <a href="timer.html" title="backward to "5.1 Timers"" data-pltdoc="x">← prev</a> <a href="private.html" title="up to "5 Internal APIs"" data-pltdoc="x">up</a> <a href="closure.html" title="forward to "5.3 Serializable Closures"" data-pltdoc="x">next →</a></span> </div><h4 x-source-module="(lib "web-server/scribblings/web-server-internal.scrbl")" x-source-pkg="web-server-doc" x-part-tag=""connection-manager"">5.2<tt> </tt><a name="(part._connection-manager)"></a><a name="(mod-path._web-server/private/connection-manager)"></a>Connection Manager</h4><p><div class="SIntrapara"><table cellspacing="0" cellpadding="0" class="defmodule"><tr><td align="left" colspan="2"><span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&version=6.7" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="stt"> </span><a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">web-server/private/connection-manager</span></a><span class="RktPn">)</span></td></tr><tr><td align="left"> </td><td align="right"><span class="RpackageSpec"><span class="Smaller"> package:</span> <span class="stt">web-server-lib</span></span></td></tr></table></div><div class="SIntrapara">This module provides functionality for managing pairs of
input and output ports. We have plans to allow a number of different strategies
for doing this.</div><div class="SIntrapara"><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>struct</p></div></div><table cellspacing="0" cellpadding="0" class="RForeground"><tr><td><span class="RktPn">(</span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=define-struct.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._struct%2529%2529&version=6.7" class="RktStxLink Sq" data-pltdoc="x">struct</a></span></td><td><span class="hspace"> </span></td><td><a name="(def._((lib._web-server/private/connection-manager..rkt)._connection-close~3f))"></a><a name="(def._((lib._web-server/private/connection-manager..rkt)._connection-custodian))"></a><a name="(def._((lib._web-server/private/connection-manager..rkt)._connection-o-port))"></a><a name="(def._((lib._web-server/private/connection-manager..rkt)._connection-i-port))"></a><a name="(def._((lib._web-server/private/connection-manager..rkt)._connection-timer))"></a><a name="(def._((lib._web-server/private/connection-manager..rkt)._make-connection))"></a><a name="(def._((lib._web-server/private/connection-manager..rkt)._connection~3f))"></a><a name="(def._((lib._web-server/private/connection-manager..rkt)._struct~3aconnection))"></a><a name="(def._((lib._web-server/private/connection-manager..rkt)._connection))"></a><span title="Provided from: web-server/private/connection-manager | Package: web-server-lib"><span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._connection%29%29" class="RktValDef RktValLink" data-pltdoc="x">connection</a></span></span><span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym">timer</span><span class="stt"> </span><span class="RktSym">i-port</span><span class="stt"> </span><span class="RktSym">o-port</span><span class="stt"> </span><span class="RktSym">custodian</span><span class="stt"> </span><span class="RktSym">close?</span><span class="RktPn">)</span></td></tr></table></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktPn">#:extra-constructor-name</span><span class="hspace"> </span><span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._make-connection%29%29" class="RktValLink" data-pltdoc="x">make-connection</a></span><span class="RktPn">)</span></td></tr><tr><td><span class="hspace"> </span><span class="RktSym">timer</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="timer.html#%28def._%28%28lib._web-server%2Fprivate%2Ftimer..rkt%29._timer~3f%29%29" class="RktValLink" data-pltdoc="x">timer?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktSym">i-port</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=port-ops.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._input-port%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">input-port?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktSym">o-port</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=port-ops.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._output-port%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">output-port?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktSym">custodian</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=custodians.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._custodian%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">custodian?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktSym">close?</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=booleans.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._boolean%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">boolean?</a></span></td></tr></table></blockquote></div><div class="SIntrapara">A connection is a pair of ports (<span class="RktSym">i-port</span> and <span class="RktSym">o-port</span>) that is
ready to close after the current job if <span class="RktSym">close?</span> is <span class="RktVal">#t</span>. Resources
associated with the connection should be allocated under <span class="RktSym">custodian</span>.
The connection will last until <span class="RktSym"><a href="timer.html#%28def._%28%28lib._web-server%2Fprivate%2Ftimer..rkt%29._timer%29%29" class="RktValLink" data-pltdoc="x">timer</a></span> triggers.</div></p></div><div class="SIntrapara"><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._web-server/private/connection-manager..rkt)._connection-manager~3f))"></a><span title="Provided from: web-server/private/connection-manager | Package: web-server-lib"><span class="RktSym"><span class="RktSymDef RktSym">connection-manager?</span></span></span><span class="hspace"> </span><span class="RktVar">x</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=booleans.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._boolean%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">boolean?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">x</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=data-structure-contracts.html%23%2528def._%2528%2528lib._racket%252Fcontract%252Fprivate%252Fmisc..rkt%2529._any%252Fc%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">any/c</a></span></td></tr></table></blockquote></div><div class="SIntrapara">Determines if <span class="RktVar">x</span> is a connection manager.</div></p></div><div class="SIntrapara"><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._web-server/private/connection-manager..rkt)._start-connection-manager))"></a><span title="Provided from: web-server/private/connection-manager | Package: web-server-lib"><span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._start-connection-manager%29%29" class="RktValDef RktValLink" data-pltdoc="x">start-connection-manager</a></span></span><span class="RktPn"></span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym">connection-manager?</span></p></blockquote></td></tr></table></blockquote></div><div class="SIntrapara">Runs the connection manager (now just the timer manager).</div></p></div><div class="SIntrapara"><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><table cellspacing="0" cellpadding="0" class="prototype RForeground"><tr><td valign="top"><span class="RktPn">(</span><a name="(def._((lib._web-server/private/connection-manager..rkt)._new-connection))"></a><span title="Provided from: web-server/private/connection-manager | Package: web-server-lib"><span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._new-connection%29%29" class="RktValDef RktValLink" data-pltdoc="x">new-connection</a></span></span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="RktVar">cm</span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td></tr><tr><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="RktVar">timeout</span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td></tr><tr><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="RktVar">i-port</span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td></tr><tr><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="RktVar">o-port</span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td></tr><tr><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="RktVar">cust</span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td></tr><tr><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="RktVar">close?</span><span class="RktPn">)</span></td><td valign="top"><span class="hspace"> </span></td><td valign="top">→</td><td valign="top"><span class="hspace"> </span></td><td valign="top"><span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._connection~3f%29%29" class="RktValLink" data-pltdoc="x">connection?</a></span></td></tr></table></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">cm</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym">connection-manager?</span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">timeout</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=number-types.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._number%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">number?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">i-port</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=port-ops.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._input-port%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">input-port?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">o-port</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=port-ops.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._output-port%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">output-port?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">cust</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=custodians.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._custodian%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">custodian?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">close?</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=booleans.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._boolean%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">boolean?</a></span></td></tr></table></blockquote></div><div class="SIntrapara">Constructs a connection with a timer with a trigger of <span class="RktVar">timeout</span> that calls
<span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._kill-connection%21%29%29" class="RktValLink" data-pltdoc="x">kill-connection!</a></span>.</div></p></div><div class="SIntrapara"><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._web-server/private/connection-manager..rkt)._kill-connection!))"></a><span title="Provided from: web-server/private/connection-manager | Package: web-server-lib"><span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._kill-connection%21%29%29" class="RktValDef RktValLink" data-pltdoc="x">kill-connection!</a></span></span><span class="hspace"> </span><span class="RktVar">c</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=void.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._void%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">void</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">c</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._connection~3f%29%29" class="RktValLink" data-pltdoc="x">connection?</a></span></td></tr></table></blockquote></div><div class="SIntrapara">Closes the ports associated with <span class="RktVar">c</span>, kills the timer, and shuts down
the custodian.</div></p></div><div class="SIntrapara"><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._web-server/private/connection-manager..rkt)._adjust-connection-timeout!))"></a><span title="Provided from: web-server/private/connection-manager | Package: web-server-lib"><span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._adjust-connection-timeout%21%29%29" class="RktValDef RktValLink" data-pltdoc="x">adjust-connection-timeout!</a></span></span><span class="hspace"> </span><span class="RktVar">c</span><span class="hspace"> </span><span class="RktVar">t</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=void.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._void%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">void</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">c</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="#%28def._%28%28lib._web-server%2Fprivate%2Fconnection-manager..rkt%29._connection~3f%29%29" class="RktValLink" data-pltdoc="x">connection?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">t</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="https://download.racket-lang.org/docs/6.7/html/local-redirect/index.html?doc=reference&rel=number-types.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._number%7E3f%2529%2529&version=6.7" class="RktValLink Sq" data-pltdoc="x">number?</a></span></td></tr></table></blockquote></div><div class="SIntrapara">Calls <span class="RktSym"><a href="timer.html#%28def._%28%28lib._web-server%2Fprivate%2Ftimer..rkt%29._increment-timer%21%29%29" class="RktValLink" data-pltdoc="x">increment-timer!</a></span> with the timer behind <span class="RktVar">c</span> with <span class="RktVar">t</span>.</div></p></div></p><div class="navsetbottom"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, "6.7", "../");" onfocus="this.style.color="black"; this.style.textAlign="left"; if (this.value == "...search manuals...") this.value="";" onblur="if (this.value.match(/^ *$/)) { this.style.color="#888"; this.style.textAlign="center"; this.value="...search manuals..."; }"/></form> <a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot("6.7");">top</a></span><span class="navright"> <a href="timer.html" title="backward to "5.1 Timers"" data-pltdoc="x">← prev</a> <a href="private.html" title="up to "5 Internal APIs"" data-pltdoc="x">up</a> <a href="closure.html" title="forward to "5.3 Serializable Closures"" data-pltdoc="x">next →</a></span> </div></div></div><div id="contextindicator"> </div></body></html>
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