The Perl Toolchain Summit needs more sponsors. If your company depends on Perl, please support this very important event.
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
<!--
This file was generated by Devel::NYTProf version 3.11
-->
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="Content-Language" content="en-us" />
    <title>Profile of /usr/local/lib/perl5/5.10.1/darwin-2level/IO/Seekable.pm</title>
<link rel="stylesheet" type="text/css" href="style.css" />
    <script type="text/javascript" src="js/jquery-min.js"></script> 

    <script type="text/javascript" src="js/jquery-tablesorter-min.js"></script> 
    <link rel="stylesheet" type="text/css" href="js/style-tablesorter.css" />
    <script type="text/javascript">
    // when a column is first clicked on to sort it, use descending order
    // XXX doesn't seem to work (and not just because the tablesorter formatSortingOrder() is broken)
    $.tablesorter.defaults.sortInitialOrder = "desc";
    // add parser through the tablesorter addParser method 
    $.tablesorter.addParser({
        id: 'fmt_time',   // name of this parser
        is: function(s) { 
            return false; // return false so this parser is not auto detected 
        }, 
        format: function(orig) { // format data for normalization 
            // console.log(orig);
            val = orig.replace(/ns/,'');
            if (val != orig) { return val / (1000*1000*1000); } 
            val = orig.replace(/µs/,''); /* XXX use &micro; ? */
            if (val != orig) { return val / (1000*1000); } 
            var val = orig.replace(/ms/,'');
            if (val != orig) { return val / (1000); }
            var val = orig.replace(/s/,'');
            if (val != orig) { return val; }
            if (orig == '0') { return orig; } 
            console.log('no match for fmt_time of '.concat(orig));
            return orig;
        },
        type: 'numeric' // set type, either numeric or text 
    }); 
    </script> 
</head>
<body > 
<div class="header" style="position: relative; overflow-x: hidden; overflow-y: hidden; z-index: 0; ">
<div class="header_back">
            <a href="index.html">&larr; Index</a>
        </div>
<div class="headerForeground" style="float: left">
    <span class="siteTitle">NYTProf Performance Profile</span>
    <span class="siteSubtitle">&emsp;&emsp;<span>&laquo;&emsp;<span class="mode_btn mode_btn_selected">block view</span>&emsp;&bull;&emsp;<span class="mode_btn"><a href="IO-Seekable-pm-line.html">line view</a></span>&emsp;&bull;&emsp;<span class="mode_btn"><a href="IO-Seekable-pm-sub.html">sub view</a></span>&emsp;&raquo;</span><br />
            For 01.HTTP.t
        </span>
</div>
<div class="headerForeground" style="float: right; text-align: right">
    <span class="siteTitle">&nbsp;</span>
    <span class="siteSubtitle">Run on Tue May  4 15:25:55 2010<br />Reported on Tue May  4 15:26:07 2010</span>
</div>
<div style="position: absolute; left: 0px; top: 0%; width: 100%; height: 101%; z-index: -1; background-color: rgb(17, 136, 255); "></div>
<div style="position: absolute; left: 0px; top: 2%; width: 100%; height: 99%; z-index: -1; background-color: rgb(16, 134, 253); "></div>
<div style="position: absolute; left: 0px; top: 4%; width: 100%; height: 97%; z-index: -1; background-color: rgb(16, 133, 252); "></div>
<div style="position: absolute; left: 0px; top: 6%; width: 100%; height: 95%; z-index: -1; background-color: rgb(15, 131, 250); "></div>
<div style="position: absolute; left: 0px; top: 8%; width: 100%; height: 93%; z-index: -1; background-color: rgb(15, 130, 249); "></div>
<div style="position: absolute; left: 0px; top: 10%; width: 100%; height: 91%; z-index: -1; background-color: rgb(15, 129, 248); "></div>
<div style="position: absolute; left: 0px; top: 12%; width: 100%; height: 89%; z-index: -1; background-color: rgb(14, 127, 246); "></div>
<div style="position: absolute; left: 0px; top: 14%; width: 100%; height: 87%; z-index: -1; background-color: rgb(14, 126, 245); "></div>
<div style="position: absolute; left: 0px; top: 16%; width: 100%; height: 85%; z-index: -1; background-color: rgb(14, 125, 244); "></div>
<div style="position: absolute; left: 0px; top: 18%; width: 100%; height: 83%; z-index: -1; background-color: rgb(13, 123, 242); "></div>
<div style="position: absolute; left: 0px; top: 20%; width: 100%; height: 81%; z-index: -1; background-color: rgb(13, 122, 241); "></div>
<div style="position: absolute; left: 0px; top: 22%; width: 100%; height: 79%; z-index: -1; background-color: rgb(13, 121, 240); "></div>
<div style="position: absolute; left: 0px; top: 24%; width: 100%; height: 77%; z-index: -1; background-color: rgb(12, 119, 238); "></div>
<div style="position: absolute; left: 0px; top: 26%; width: 100%; height: 75%; z-index: -1; background-color: rgb(12, 118, 237); "></div>
<div style="position: absolute; left: 0px; top: 28%; width: 100%; height: 73%; z-index: -1; background-color: rgb(12, 116, 235); "></div>
<div style="position: absolute; left: 0px; top: 30%; width: 100%; height: 71%; z-index: -1; background-color: rgb(11, 115, 234); "></div>
<div style="position: absolute; left: 0px; top: 32%; width: 100%; height: 69%; z-index: -1; background-color: rgb(11, 114, 233); "></div>
<div style="position: absolute; left: 0px; top: 34%; width: 100%; height: 67%; z-index: -1; background-color: rgb(11, 112, 231); "></div>
<div style="position: absolute; left: 0px; top: 36%; width: 100%; height: 65%; z-index: -1; background-color: rgb(10, 111, 230); "></div>
<div style="position: absolute; left: 0px; top: 38%; width: 100%; height: 63%; z-index: -1; background-color: rgb(10, 110, 229); "></div>
<div style="position: absolute; left: 0px; top: 40%; width: 100%; height: 61%; z-index: -1; background-color: rgb(10, 108, 227); "></div>
<div style="position: absolute; left: 0px; top: 42%; width: 100%; height: 59%; z-index: -1; background-color: rgb(9, 107, 226); "></div>
<div style="position: absolute; left: 0px; top: 44%; width: 100%; height: 57%; z-index: -1; background-color: rgb(9, 106, 225); "></div>
<div style="position: absolute; left: 0px; top: 46%; width: 100%; height: 55%; z-index: -1; background-color: rgb(9, 104, 223); "></div>
<div style="position: absolute; left: 0px; top: 48%; width: 100%; height: 53%; z-index: -1; background-color: rgb(8, 103, 222); "></div>
<div style="position: absolute; left: 0px; top: 50%; width: 100%; height: 51%; z-index: -1; background-color: rgb(8, 102, 221); "></div>
<div style="position: absolute; left: 0px; top: 52%; width: 100%; height: 49%; z-index: -1; background-color: rgb(8, 100, 219); "></div>
<div style="position: absolute; left: 0px; top: 54%; width: 100%; height: 47%; z-index: -1; background-color: rgb(7, 99, 218); "></div>
<div style="position: absolute; left: 0px; top: 56%; width: 100%; height: 45%; z-index: -1; background-color: rgb(7, 97, 216); "></div>
<div style="position: absolute; left: 0px; top: 58%; width: 100%; height: 43%; z-index: -1; background-color: rgb(7, 96, 215); "></div>
<div style="position: absolute; left: 0px; top: 60%; width: 100%; height: 41%; z-index: -1; background-color: rgb(6, 95, 214); "></div>
<div style="position: absolute; left: 0px; top: 62%; width: 100%; height: 39%; z-index: -1; background-color: rgb(6, 93, 212); "></div>
<div style="position: absolute; left: 0px; top: 64%; width: 100%; height: 37%; z-index: -1; background-color: rgb(6, 92, 211); "></div>
<div style="position: absolute; left: 0px; top: 66%; width: 100%; height: 35%; z-index: -1; background-color: rgb(5, 91, 210); "></div>
<div style="position: absolute; left: 0px; top: 68%; width: 100%; height: 33%; z-index: -1; background-color: rgb(5, 89, 208); "></div>
<div style="position: absolute; left: 0px; top: 70%; width: 100%; height: 31%; z-index: -1; background-color: rgb(5, 88, 207); "></div>
<div style="position: absolute; left: 0px; top: 72%; width: 100%; height: 29%; z-index: -1; background-color: rgb(4, 87, 206); "></div>
<div style="position: absolute; left: 0px; top: 74%; width: 100%; height: 27%; z-index: -1; background-color: rgb(4, 85, 204); "></div>
<div style="position: absolute; left: 0px; top: 76%; width: 100%; height: 25%; z-index: -1; background-color: rgb(4, 84, 203); "></div>
<div style="position: absolute; left: 0px; top: 78%; width: 100%; height: 23%; z-index: -1; background-color: rgb(3, 82, 201); "></div>
<div style="position: absolute; left: 0px; top: 80%; width: 100%; height: 21%; z-index: -1; background-color: rgb(3, 81, 200); "></div>
<div style="position: absolute; left: 0px; top: 82%; width: 100%; height: 19%; z-index: -1; background-color: rgb(3, 80, 199); "></div>
<div style="position: absolute; left: 0px; top: 84%; width: 100%; height: 17%; z-index: -1; background-color: rgb(2, 78, 197); "></div>
<div style="position: absolute; left: 0px; top: 86%; width: 100%; height: 15%; z-index: -1; background-color: rgb(2, 77, 196); "></div>
<div style="position: absolute; left: 0px; top: 88%; width: 100%; height: 13%; z-index: -1; background-color: rgb(2, 76, 195); "></div>
<div style="position: absolute; left: 0px; top: 90%; width: 100%; height: 11%; z-index: -1; background-color: rgb(1, 74, 193); "></div>
<div style="position: absolute; left: 0px; top: 92%; width: 100%; height: 9%; z-index: -1; background-color: rgb(1, 73, 192); "></div>
<div style="position: absolute; left: 0px; top: 94%; width: 100%; height: 7%; z-index: -1; background-color: rgb(1, 72, 191); "></div>
<div style="position: absolute; left: 0px; top: 96%; width: 100%; height: 5%; z-index: -1; background-color: rgb(0, 70, 189); "></div>
<div style="position: absolute; left: 0px; top: 98%; width: 100%; height: 3%; z-index: -1; background-color: rgb(0, 69, 188); "></div>
<div style="position: absolute; left: 0px; top: 100%; width: 100%; height: 1%; z-index: -1; background-color: rgb(0, 68, 187); "></div>
</div>

<div class="body_content">
<br />
<table>
<tr>
<td class="h" align="right">File</td>
<td align="left">/usr/local/lib/perl5/5.10.1/darwin-2level/IO/Seekable.pm</td>
</tr>
<tr>
<td class="h" align="right">Statements Executed</td>
<td align="left">22</td>
</tr>
<tr>
<td class="h" align="right">Statement Execution Time</td>
<td align="left">1.06ms</td>
</tr>
</table>

        
        <table id="subs_table" border="1" cellpadding="0" class="tablesorter">
        <caption>Subroutines &mdash; ordered by exclusive time</caption>
        <thead>
        <tr>
        <th>Calls</th>
        <th><span title="Number of Places sub is called from">P</span></th>
        <th><span title="Number of Files sub is called from">F</span></th>
        <th>Exclusive<br />Time</th>
        <th>Inclusive<br />Time</th>
        <th>Subroutine</th>
        </tr>
        </thead>
    <tbody>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.2%">2.45ms</span></td><td class="c0"><span title="0.3%">3.19ms</span></td><td class="sub_name"><span style="display: none;">IO::Seekable::::BEGIN@101</span>IO::Seekable::<a href="IO-Seekable-pm-block.html#101">BEGIN@101</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.1%">686&micro;s</span></td><td class="c0"><span title="0.1%">1.27ms</span></td><td class="sub_name"><span style="display: none;">IO::Seekable::::BEGIN@104</span>IO::Seekable::<a href="IO-Seekable-pm-block.html#104">BEGIN@104</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">27&micro;s</span></td><td class="c3"><span title="0.0%">27&micro;s</span></td><td class="sub_name"><span style="display: none;">IO::Seekable::::BEGIN@97</span>IO::Seekable::<a href="IO-Seekable-pm-block.html#97">BEGIN@97</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">8&micro;s</span></td><td class="c3"><span title="0.0%">43&micro;s</span></td><td class="sub_name"><span style="display: none;">IO::Seekable::::BEGIN@98</span>IO::Seekable::<a href="IO-Seekable-pm-block.html#98">BEGIN@98</a></span></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">7&micro;s</span></td><td class="c3"><span title="0.0%">10&micro;s</span></td><td class="sub_name"><span style="display: none;">IO::Seekable::::BEGIN@99</span>IO::Seekable::<a href="IO-Seekable-pm-block.html#99">BEGIN@99</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Seekable::::seek</span>IO::Seekable::<a href="IO-Seekable-pm-block.html#113">seek</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Seekable::::sysseek</span>IO::Seekable::<a href="IO-Seekable-pm-block.html#118">sysseek</a></span></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">IO::Seekable::::tell</span>IO::Seekable::<a href="IO-Seekable-pm-block.html#123">tell</a></span></td></tr>

        </tbody>
        </table>
    
        Call graph for these subroutines as a <a href="http://en.wikipedia.org/wiki/Graphviz">Graphviz</a> <a href="usr-local-lib-perl5-5-10-1-darwin-2level-IO-Seekable-pm.dot">dot language file</a>.
      <table border="1" cellpadding="0">
      <thead>
      <tr><th>Line</th>
      <th><span title="Number of statements executed">State<br />ments</span></th>
      <th><span title="Time spend executing statements on the line,
        excluding time spent executing statements in any called subroutines">Time<br />on line</span></th>
      <th><span title="Number of subroutines calls">Calls</span></th>
      <th><span title="Time spent in subroutines called">Time<br />in subs</span></th>
      <th class="left_indent_header">Code</th>
      </tr>

      </thead>
      <tbody>
    <tr><td class="h"><a name="1"></a>1</td><td></td><td></td><td></td><td></td><td class="s">#</td></tr>
<tr><td class="h"><a name="2"></a>2</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="3"></a>3</td><td></td><td></td><td></td><td></td><td class="s">package IO::Seekable;</td></tr>
<tr><td class="h"><a name="4"></a>4</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="5"></a>5</td><td></td><td></td><td></td><td></td><td class="s">=head1 NAME</td></tr>
<tr><td class="h"><a name="6"></a>6</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="7"></a>7</td><td></td><td></td><td></td><td></td><td class="s">IO::Seekable - supply seek based methods for I/O objects</td></tr>
<tr><td class="h"><a name="8"></a>8</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="9"></a>9</td><td></td><td></td><td></td><td></td><td class="s">=head1 SYNOPSIS</td></tr>
<tr><td class="h"><a name="10"></a>10</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="11"></a>11</td><td></td><td></td><td></td><td></td><td class="s">    use IO::Seekable;</td></tr>
<tr><td class="h"><a name="12"></a>12</td><td></td><td></td><td></td><td></td><td class="s">    package IO::Something;</td></tr>
<tr><td class="h"><a name="13"></a>13</td><td></td><td></td><td></td><td></td><td class="s">    @ISA = qw(IO::Seekable);</td></tr>
<tr><td class="h"><a name="14"></a>14</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="15"></a>15</td><td></td><td></td><td></td><td></td><td class="s">=head1 DESCRIPTION</td></tr>
<tr><td class="h"><a name="16"></a>16</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="17"></a>17</td><td></td><td></td><td></td><td></td><td class="s">C&lt;IO::Seekable&gt; does not have a constructor of its own as it is intended to</td></tr>
<tr><td class="h"><a name="18"></a>18</td><td></td><td></td><td></td><td></td><td class="s">be inherited by other C&lt;IO::Handle&gt; based objects. It provides methods</td></tr>
<tr><td class="h"><a name="19"></a>19</td><td></td><td></td><td></td><td></td><td class="s">which allow seeking of the file descriptors.</td></tr>
<tr><td class="h"><a name="20"></a>20</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="21"></a>21</td><td></td><td></td><td></td><td></td><td class="s">=over 4</td></tr>
<tr><td class="h"><a name="22"></a>22</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="23"></a>23</td><td></td><td></td><td></td><td></td><td class="s">=item $io-&gt;getpos</td></tr>
<tr><td class="h"><a name="24"></a>24</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="25"></a>25</td><td></td><td></td><td></td><td></td><td class="s">Returns an opaque value that represents the current position of the</td></tr>
<tr><td class="h"><a name="26"></a>26</td><td></td><td></td><td></td><td></td><td class="s">IO::File, or C&lt;undef&gt; if this is not possible (eg an unseekable stream such</td></tr>
<tr><td class="h"><a name="27"></a>27</td><td></td><td></td><td></td><td></td><td class="s">as a terminal, pipe or socket). If the fgetpos() function is available in</td></tr>
<tr><td class="h"><a name="28"></a>28</td><td></td><td></td><td></td><td></td><td class="s">your C library it is used to implements getpos, else perl emulates getpos</td></tr>
<tr><td class="h"><a name="29"></a>29</td><td></td><td></td><td></td><td></td><td class="s">using C's ftell() function.</td></tr>
<tr><td class="h"><a name="30"></a>30</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="31"></a>31</td><td></td><td></td><td></td><td></td><td class="s">=item $io-&gt;setpos</td></tr>
<tr><td class="h"><a name="32"></a>32</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="33"></a>33</td><td></td><td></td><td></td><td></td><td class="s">Uses the value of a previous getpos call to return to a previously visited</td></tr>
<tr><td class="h"><a name="34"></a>34</td><td></td><td></td><td></td><td></td><td class="s">position. Returns &quot;0 but true&quot; on success, C&lt;undef&gt; on failure.</td></tr>
<tr><td class="h"><a name="35"></a>35</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="36"></a>36</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="37"></a>37</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="38"></a>38</td><td></td><td></td><td></td><td></td><td class="s">See L&lt;perlfunc&gt; for complete descriptions of each of the following</td></tr>
<tr><td class="h"><a name="39"></a>39</td><td></td><td></td><td></td><td></td><td class="s">supported C&lt;IO::Seekable&gt; methods, which are just front ends for the</td></tr>
<tr><td class="h"><a name="40"></a>40</td><td></td><td></td><td></td><td></td><td class="s">corresponding built-in functions:</td></tr>
<tr><td class="h"><a name="41"></a>41</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="42"></a>42</td><td></td><td></td><td></td><td></td><td class="s">=over 4</td></tr>
<tr><td class="h"><a name="43"></a>43</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="44"></a>44</td><td></td><td></td><td></td><td></td><td class="s">=item $io-&gt;seek ( POS, WHENCE )</td></tr>
<tr><td class="h"><a name="45"></a>45</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="46"></a>46</td><td></td><td></td><td></td><td></td><td class="s">Seek the IO::File to position POS, relative to WHENCE:</td></tr>
<tr><td class="h"><a name="47"></a>47</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="48"></a>48</td><td></td><td></td><td></td><td></td><td class="s">=over 8</td></tr>
<tr><td class="h"><a name="49"></a>49</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="50"></a>50</td><td></td><td></td><td></td><td></td><td class="s">=item WHENCE=0 (SEEK_SET)</td></tr>
<tr><td class="h"><a name="51"></a>51</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="52"></a>52</td><td></td><td></td><td></td><td></td><td class="s">POS is absolute position. (Seek relative to the start of the file)</td></tr>
<tr><td class="h"><a name="53"></a>53</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="54"></a>54</td><td></td><td></td><td></td><td></td><td class="s">=item WHENCE=1 (SEEK_CUR)</td></tr>
<tr><td class="h"><a name="55"></a>55</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="56"></a>56</td><td></td><td></td><td></td><td></td><td class="s">POS is an offset from the current position. (Seek relative to current)</td></tr>
<tr><td class="h"><a name="57"></a>57</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="58"></a>58</td><td></td><td></td><td></td><td></td><td class="s">=item WHENCE=2 (SEEK_END)</td></tr>
<tr><td class="h"><a name="59"></a>59</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="60"></a>60</td><td></td><td></td><td></td><td></td><td class="s">POS is an offset from the end of the file. (Seek relative to end)</td></tr>
<tr><td class="h"><a name="61"></a>61</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="62"></a>62</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="63"></a>63</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="64"></a>64</td><td></td><td></td><td></td><td></td><td class="s">The SEEK_* constants can be imported from the C&lt;Fcntl&gt; module if you</td></tr>
<tr><td class="h"><a name="65"></a>65</td><td></td><td></td><td></td><td></td><td class="s">don't wish to use the numbers C&lt;0&gt; C&lt;1&gt; or C&lt;2&gt; in your code.</td></tr>
<tr><td class="h"><a name="66"></a>66</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="67"></a>67</td><td></td><td></td><td></td><td></td><td class="s">Returns C&lt;1&gt; upon success, C&lt;0&gt; otherwise.</td></tr>
<tr><td class="h"><a name="68"></a>68</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="69"></a>69</td><td></td><td></td><td></td><td></td><td class="s">=item $io-&gt;sysseek( POS, WHENCE )</td></tr>
<tr><td class="h"><a name="70"></a>70</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="71"></a>71</td><td></td><td></td><td></td><td></td><td class="s">Similar to $io-&gt;seek, but sets the IO::File's position using the system</td></tr>
<tr><td class="h"><a name="72"></a>72</td><td></td><td></td><td></td><td></td><td class="s">call lseek(2) directly, so will confuse most perl IO operators except</td></tr>
<tr><td class="h"><a name="73"></a>73</td><td></td><td></td><td></td><td></td><td class="s">sysread and syswrite (see L&lt;perlfunc&gt; for full details)</td></tr>
<tr><td class="h"><a name="74"></a>74</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="75"></a>75</td><td></td><td></td><td></td><td></td><td class="s">Returns the new position, or C&lt;undef&gt; on failure.  A position</td></tr>
<tr><td class="h"><a name="76"></a>76</td><td></td><td></td><td></td><td></td><td class="s">of zero is returned as the string C&lt;&quot;0 but true&quot;&gt;</td></tr>
<tr><td class="h"><a name="77"></a>77</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="78"></a>78</td><td></td><td></td><td></td><td></td><td class="s">=item $io-&gt;tell</td></tr>
<tr><td class="h"><a name="79"></a>79</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="80"></a>80</td><td></td><td></td><td></td><td></td><td class="s">Returns the IO::File's current position, or -1 on error.</td></tr>
<tr><td class="h"><a name="81"></a>81</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="82"></a>82</td><td></td><td></td><td></td><td></td><td class="s">=back</td></tr>
<tr><td class="h"><a name="83"></a>83</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="84"></a>84</td><td></td><td></td><td></td><td></td><td class="s">=head1 SEE ALSO</td></tr>
<tr><td class="h"><a name="85"></a>85</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="86"></a>86</td><td></td><td></td><td></td><td></td><td class="s">L&lt;perlfunc&gt;, </td></tr>
<tr><td class="h"><a name="87"></a>87</td><td></td><td></td><td></td><td></td><td class="s">L&lt;perlop/&quot;I/O Operators&quot;&gt;,</td></tr>
<tr><td class="h"><a name="88"></a>88</td><td></td><td></td><td></td><td></td><td class="s">L&lt;IO::Handle&gt;</td></tr>
<tr><td class="h"><a name="89"></a>89</td><td></td><td></td><td></td><td></td><td class="s">L&lt;IO::File&gt;</td></tr>
<tr><td class="h"><a name="90"></a>90</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="91"></a>91</td><td></td><td></td><td></td><td></td><td class="s">=head1 HISTORY</td></tr>
<tr><td class="h"><a name="92"></a>92</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="93"></a>93</td><td></td><td></td><td></td><td></td><td class="s">Derived from FileHandle.pm by Graham Barr E&lt;lt&gt;gbarr@pobox.comE&lt;gt&gt;</td></tr>
<tr><td class="h"><a name="94"></a>94</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="95"></a>95</td><td></td><td></td><td></td><td></td><td class="s">=cut</td></tr>
<tr><td class="h"><a name="96"></a>96</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="97"></a>97</td><td class="c0">3</td><td class="c2"><span title="Avg 12&micro;s">36&micro;s</span></td><td class="c3">1</td><td class="c3">27&micro;s</td><td class="s"><div class="calls"><div class="calls_in"># spent 27&micro;s within IO::Seekable::BEGIN@97 which was called
#    once (27&micro;s+0s) by IO::File::BEGIN@133 at <a href="IO-Seekable-pm-block.html#97">line 97</a></div></div>use 5.006_001;<div class="calls"><div class="calls_out"># spent    27&micro;s making 1 call to <a href="IO-Seekable-pm-block.html#97">IO::Seekable::BEGIN@97</a></div></div></td></tr>
<tr><td class="h"><a name="98"></a>98</td><td class="c0">3</td><td class="c3"><span title="Avg 7&micro;s">22&micro;s</span></td><td class="c3">2</td><td class="c3">77&micro;s</td><td class="s"><div class="calls"><div class="calls_in"># spent 43&micro;s (8+34) within IO::Seekable::BEGIN@98 which was called
#    once (8&micro;s+34&micro;s) by IO::File::BEGIN@133 at <a href="IO-Seekable-pm-block.html#98">line 98</a></div></div>use Carp;<div class="calls"><div class="calls_out"># spent    43&micro;s making 1 call to <a href="IO-Seekable-pm-block.html#98">IO::Seekable::BEGIN@98</a>
# spent    34&micro;s making 1 call to <a href="Exporter-pm-block.html#31">Exporter::import</a></div></div></td></tr>
<tr><td class="h"><a name="99"></a>99</td><td class="c0">3</td><td class="c2"><span title="Avg 14&micro;s">43&micro;s</span></td><td class="c3">2</td><td class="c3">12&micro;s</td><td class="s"><div class="calls"><div class="calls_in"># spent 10&micro;s (7+3) within IO::Seekable::BEGIN@99 which was called
#    once (7&micro;s+3&micro;s) by IO::File::BEGIN@133 at <a href="IO-Seekable-pm-block.html#99">line 99</a></div></div>use strict;<div class="calls"><div class="calls_out"># spent    10&micro;s making 1 call to <a href="IO-Seekable-pm-block.html#99">IO::Seekable::BEGIN@99</a>
# spent     3&micro;s making 1 call to <a href="strict-pm-block.html#34">strict::import</a></div></div></td></tr>
<tr><td class="h"><a name="100"></a>100</td><td class="c3">1</td><td class="c3"><span title="Avg 1&micro;s">1&micro;s</span></td><td></td><td></td><td class="s">our($VERSION, @EXPORT, @ISA);</td></tr>
<tr><td class="h"><a name="101"></a>101</td><td class="c0">3</td><td class="c0"><span title="Avg 43&micro;s">130&micro;s</span></td><td class="c3">1</td><td class="c0">3.19ms</td><td class="s"><div class="calls"><div class="calls_in"># spent 3.19ms (2.45+739&micro;s) within IO::Seekable::BEGIN@101 which was called
#    once (2.45ms+739&micro;s) by IO::File::BEGIN@133 at <a href="IO-Seekable-pm-block.html#101">line 101</a></div></div>use IO::Handle ();<div class="calls"><div class="calls_out"># spent  3.19ms making 1 call to <a href="IO-Seekable-pm-block.html#101">IO::Seekable::BEGIN@101</a></div></div></td></tr>
<tr><td class="h"><a name="102"></a>102</td><td></td><td></td><td></td><td></td><td class="s"># XXX we can't get these from IO::Handle or we'll get prototype</td></tr>
<tr><td class="h"><a name="103"></a>103</td><td></td><td></td><td></td><td></td><td class="s"># mismatch warnings on C&lt;use POSIX; use IO::File;&gt; :-(</td></tr>
<tr><td class="h"><a name="104"></a>104</td><td class="c0">3</td><td class="c0"><span title="Avg 246&micro;s">737&micro;s</span></td><td class="c3">2</td><td class="c0">1.54ms</td><td class="s"><div class="calls"><div class="calls_in"># spent 1.27ms (686&micro;s+584&micro;s) within IO::Seekable::BEGIN@104 which was called
#    once (686&micro;s+584&micro;s) by IO::File::BEGIN@133 at <a href="IO-Seekable-pm-block.html#104">line 104</a></div></div>use Fcntl qw(SEEK_SET SEEK_CUR SEEK_END);<div class="calls"><div class="calls_out"># spent  1.27ms making 1 call to <a href="IO-Seekable-pm-block.html#104">IO::Seekable::BEGIN@104</a>
# spent   275&micro;s making 1 call to <a href="Exporter-pm-block.html#31">Exporter::import</a></div></div></td></tr>
<tr><td class="h"><a name="105"></a>105</td><td class="c3">1</td><td class="c3"><span title="Avg 2&micro;s">2&micro;s</span></td><td></td><td></td><td class="s">require Exporter;</td></tr>
<tr><td class="h"><a name="106"></a>106</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="107"></a>107</td><td class="c3">1</td><td class="c3"><span title="Avg 5&micro;s">5&micro;s</span></td><td></td><td></td><td class="s">@EXPORT = qw(SEEK_SET SEEK_CUR SEEK_END);</td></tr>
<tr><td class="h"><a name="108"></a>108</td><td class="c3">1</td><td class="c3"><span title="Avg 18&micro;s">18&micro;s</span></td><td></td><td></td><td class="s">@ISA = qw(Exporter);</td></tr>
<tr><td class="h"><a name="109"></a>109</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="110"></a>110</td><td class="c3">1</td><td class="c3"><span title="Avg 1&micro;s">1&micro;s</span></td><td></td><td></td><td class="s">$VERSION = &quot;1.10&quot;;</td></tr>
<tr><td class="h"><a name="111"></a>111</td><td class="c3">1</td><td class="c1"><span title="Avg 45&micro;s">45&micro;s</span></td><td></td><td></td><td class="s">$VERSION = eval $VERSION;</td></tr>
<tr><td class="h"><a name="112"></a>112</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="113"></a>113</td><td></td><td></td><td></td><td></td><td class="s">sub seek {</td></tr>
<tr><td class="h"><a name="114"></a>114</td><td></td><td></td><td></td><td></td><td class="s">    @_ == 3 or croak 'usage: $io-&gt;seek(POS, WHENCE)';</td></tr>
<tr><td class="h"><a name="115"></a>115</td><td></td><td></td><td></td><td></td><td class="s">    seek($_[0], $_[1], $_[2]);</td></tr>
<tr><td class="h"><a name="116"></a>116</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="117"></a>117</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="118"></a>118</td><td></td><td></td><td></td><td></td><td class="s">sub sysseek {</td></tr>
<tr><td class="h"><a name="119"></a>119</td><td></td><td></td><td></td><td></td><td class="s">    @_ == 3 or croak 'usage: $io-&gt;sysseek(POS, WHENCE)';</td></tr>
<tr><td class="h"><a name="120"></a>120</td><td></td><td></td><td></td><td></td><td class="s">    sysseek($_[0], $_[1], $_[2]);</td></tr>
<tr><td class="h"><a name="121"></a>121</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="122"></a>122</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="123"></a>123</td><td></td><td></td><td></td><td></td><td class="s">sub tell {</td></tr>
<tr><td class="h"><a name="124"></a>124</td><td></td><td></td><td></td><td></td><td class="s">    @_ == 1 or croak 'usage: $io-&gt;tell()';</td></tr>
<tr><td class="h"><a name="125"></a>125</td><td></td><td></td><td></td><td></td><td class="s">    tell($_[0]);</td></tr>
<tr><td class="h"><a name="126"></a>126</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="127"></a>127</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="128"></a>128</td><td class="c3">1</td><td class="c3"><span title="Avg 23&micro;s">23&micro;s</span></td><td></td><td></td><td class="s">1;</td></tr>
</tbody></table></div>
        
            <script type="text/javascript"> $(document).ready(function() { 

        $("#subs_table").tablesorter({
            sortList: [[3,1]],
            headers: {
                3: { sorter: 'fmt_time' },
                4: { sorter: 'fmt_time' }
            }
        });
    
 } ); </script>
        
        <div class="footer">Report produced by the
        <a href="http://search.cpan.org/dist/Devel-NYTProf/">NYTProf 3.11</a>
        Perl profiler, developed by
        <a href="http://www.linkedin.com/in/timbunce">Tim Bunce</a> and
        <a href="http://code.nytimes.com">Adam Kaplan</a>.
        </div>
        <br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
    </body></html>