| [1096] | 1 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|---|
| 2 | <html xmlns="http://www.w3.org/1999/xhtml">
|
|---|
| 3 | <head>
|
|---|
| 4 | <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|---|
| 5 | <title>QuaZIP: QuaChecksum32 Class Reference</title>
|
|---|
| 6 | <link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|---|
| 7 | <link href="doxygen.css" rel="stylesheet" type="text/css"/>
|
|---|
| 8 | </head>
|
|---|
| 9 | <body>
|
|---|
| 10 | <!-- Generated by Doxygen 1.7.4 -->
|
|---|
| 11 | <div id="top">
|
|---|
| 12 | <div id="titlearea">
|
|---|
| 13 | <table cellspacing="0" cellpadding="0">
|
|---|
| 14 | <tbody>
|
|---|
| 15 | <tr style="height: 56px;">
|
|---|
| 16 | <td style="padding-left: 0.5em;">
|
|---|
| 17 | <div id="projectname">QuaZIP <span id="projectnumber">quazip-0-7-2</span></div>
|
|---|
| 18 | </td>
|
|---|
| 19 | </tr>
|
|---|
| 20 | </tbody>
|
|---|
| 21 | </table>
|
|---|
| 22 | </div>
|
|---|
| 23 | <div id="navrow1" class="tabs">
|
|---|
| 24 | <ul class="tablist">
|
|---|
| 25 | <li><a href="index.html"><span>Main Page</span></a></li>
|
|---|
| 26 | <li><a href="pages.html"><span>Related Pages</span></a></li>
|
|---|
| 27 | <li class="current"><a href="annotated.html"><span>Classes</span></a></li>
|
|---|
| 28 | <li><a href="files.html"><span>Files</span></a></li>
|
|---|
| 29 | <li><a href="dirs.html"><span>Directories</span></a></li>
|
|---|
| 30 | </ul>
|
|---|
| 31 | </div>
|
|---|
| 32 | <div id="navrow2" class="tabs2">
|
|---|
| 33 | <ul class="tablist">
|
|---|
| 34 | <li><a href="annotated.html"><span>Class List</span></a></li>
|
|---|
| 35 | <li><a href="inherits.html"><span>Class Hierarchy</span></a></li>
|
|---|
| 36 | <li><a href="functions.html"><span>Class Members</span></a></li>
|
|---|
| 37 | </ul>
|
|---|
| 38 | </div>
|
|---|
| 39 | </div>
|
|---|
| 40 | <div class="header">
|
|---|
| 41 | <div class="summary">
|
|---|
| 42 | <a href="#pub-methods">Public Member Functions</a> </div>
|
|---|
| 43 | <div class="headertitle">
|
|---|
| 44 | <div class="title">QuaChecksum32 Class Reference</div> </div>
|
|---|
| 45 | </div>
|
|---|
| 46 | <div class="contents">
|
|---|
| 47 | <!-- doxytag: class="QuaChecksum32" -->
|
|---|
| 48 | <p>Checksum interface.
|
|---|
| 49 | <a href="classQuaChecksum32.html#details">More...</a></p>
|
|---|
| 50 |
|
|---|
| 51 | <p><code>#include <<a class="el" href="quachecksum32_8h_source.html">quazip/quachecksum32.h</a>></code></p>
|
|---|
| 52 | <div class="dynheader">
|
|---|
| 53 | Inheritance diagram for QuaChecksum32:</div>
|
|---|
| 54 | <div class="dyncontent">
|
|---|
| 55 | <div class="center"><img src="classQuaChecksum32__inherit__graph.png" border="0" usemap="#QuaChecksum32_inherit__map" alt="Inheritance graph"/></div>
|
|---|
| 56 | <map name="QuaChecksum32_inherit__map" id="QuaChecksum32_inherit__map">
|
|---|
| 57 | <area shape="rect" id="node3" href="classQuaAdler32.html" title="Adler32 checksum." alt="" coords="5,80,96,107"/>
|
|---|
| 58 | <area shape="rect" id="node5" href="classQuaCrc32.html" title="CRC32 checksum." alt="" coords="120,80,200,107"/>
|
|---|
| 59 | </map>
|
|---|
| 60 | <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
|
|---|
| 61 |
|
|---|
| 62 | <p><a href="classQuaChecksum32-members.html">List of all members.</a></p>
|
|---|
| 63 | <table class="memberdecls">
|
|---|
| 64 | <tr><td colspan="2"><h2><a name="pub-methods"></a>
|
|---|
| 65 | Public Member Functions</h2></td></tr>
|
|---|
| 66 | <tr><td class="memItemLeft" align="right" valign="top">virtual quint32 </td><td class="memItemRight" valign="bottom"><a class="el" href="classQuaChecksum32.html#a14d800fcfd55b2ae11ef07d3924fe0b1">calculate</a> (const <a class="elRef" doxygen="qtcore.tags:http://doc.qt.io/qt-5//" href="http://doc.qt.io/qt-5/qbytearray.html">QByteArray</a> &data)=0</td></tr>
|
|---|
| 67 | <tr><td class="mdescLeft"> </td><td class="mdescRight">Calculates the checksum for data. <a href="#a14d800fcfd55b2ae11ef07d3924fe0b1"></a><br/></td></tr>
|
|---|
| 68 | <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad3f5db3c76b00069db9bda333cb49d57"></a><!-- doxytag: member="QuaChecksum32::reset" ref="ad3f5db3c76b00069db9bda333cb49d57" args="()=0" -->
|
|---|
| 69 | virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classQuaChecksum32.html#ad3f5db3c76b00069db9bda333cb49d57">reset</a> ()=0</td></tr>
|
|---|
| 70 | <tr><td class="mdescLeft"> </td><td class="mdescRight">Resets the calculation on a checksun for a stream. <br/></td></tr>
|
|---|
| 71 | <tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classQuaChecksum32.html#a63a6ed3171f9243214d307da67557f7e">update</a> (const <a class="elRef" doxygen="qtcore.tags:http://doc.qt.io/qt-5//" href="http://doc.qt.io/qt-5/qbytearray.html">QByteArray</a> &buf)=0</td></tr>
|
|---|
| 72 | <tr><td class="mdescLeft"> </td><td class="mdescRight">Updates the calculated checksum for the stream. <a href="#a63a6ed3171f9243214d307da67557f7e"></a><br/></td></tr>
|
|---|
| 73 | <tr><td class="memItemLeft" align="right" valign="top">virtual quint32 </td><td class="memItemRight" valign="bottom"><a class="el" href="classQuaChecksum32.html#afd836e7534194fce08356be6a8336da7">value</a> ()=0</td></tr>
|
|---|
| 74 | <tr><td class="mdescLeft"> </td><td class="mdescRight">Value of the checksum calculated for the stream passed throw <a class="el" href="classQuaChecksum32.html#a63a6ed3171f9243214d307da67557f7e" title="Updates the calculated checksum for the stream.">update()</a>. <a href="#afd836e7534194fce08356be6a8336da7"></a><br/></td></tr>
|
|---|
| 75 | </table>
|
|---|
| 76 | <hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
|
|---|
| 77 | <div class="textblock"><p>Checksum interface. </p>
|
|---|
| 78 | <p>This is an interface for 32 bit checksums. Classes implementing this interface can calcunate a certin checksum in a single step: </p>
|
|---|
| 79 | <div class="fragment"><pre class="fragment"> QChecksum32 *crc32 = <span class="keyword">new</span> <a class="code" href="classQuaCrc32.html" title="CRC32 checksum.">QuaCrc32</a>();
|
|---|
| 80 | rasoult = crc32->calculate(data);
|
|---|
| 81 | </pre></div><p> or by streaming the data: </p>
|
|---|
| 82 | <div class="fragment"><pre class="fragment"> QChecksum32 *crc32 = <span class="keyword">new</span> <a class="code" href="classQuaCrc32.html" title="CRC32 checksum.">QuaCrc32</a>();
|
|---|
| 83 | <span class="keywordflow">while</span>(!fileA.atEnd())
|
|---|
| 84 | crc32->update(fileA.read(bufSize));
|
|---|
| 85 | resoultA = crc32->value();
|
|---|
| 86 | crc32->reset();
|
|---|
| 87 | <span class="keywordflow">while</span>(!fileB.atEnd())
|
|---|
| 88 | crc32->update(fileB.read(bufSize));
|
|---|
| 89 | resoultB = crc32->value();
|
|---|
| 90 | </pre></div> </div><hr/><h2>Member Function Documentation</h2>
|
|---|
| 91 | <a class="anchor" id="a14d800fcfd55b2ae11ef07d3924fe0b1"></a><!-- doxytag: member="QuaChecksum32::calculate" ref="a14d800fcfd55b2ae11ef07d3924fe0b1" args="(const QByteArray &data)=0" -->
|
|---|
| 92 | <div class="memitem">
|
|---|
| 93 | <div class="memproto">
|
|---|
| 94 | <table class="memname">
|
|---|
| 95 | <tr>
|
|---|
| 96 | <td class="memname">virtual quint32 QuaChecksum32::calculate </td>
|
|---|
| 97 | <td>(</td>
|
|---|
| 98 | <td class="paramtype">const <a class="elRef" doxygen="qtcore.tags:http://doc.qt.io/qt-5//" href="http://doc.qt.io/qt-5/qbytearray.html">QByteArray</a> & </td>
|
|---|
| 99 | <td class="paramname"><em>data</em></td><td>)</td>
|
|---|
| 100 | <td><code> [pure virtual]</code></td>
|
|---|
| 101 | </tr>
|
|---|
| 102 | </table>
|
|---|
| 103 | </div>
|
|---|
| 104 | <div class="memdoc">
|
|---|
| 105 |
|
|---|
| 106 | <p>Calculates the checksum for data. </p>
|
|---|
| 107 | <p><em>data</em> source data </p>
|
|---|
| 108 | <dl class="return"><dt><b>Returns:</b></dt><dd>data checksum</dd></dl>
|
|---|
| 109 | <p>This function has no efect on the value returned by <a class="el" href="classQuaChecksum32.html#afd836e7534194fce08356be6a8336da7" title="Value of the checksum calculated for the stream passed throw update().">value()</a>. </p>
|
|---|
| 110 |
|
|---|
| 111 | <p>Implemented in <a class="el" href="classQuaAdler32.html#a350e84fd000ebfa3c33503336a7b21bb">QuaAdler32</a>, and <a class="el" href="classQuaCrc32.html#aaf6fdf6e36e55c97bf9eab6ec65ecb9e">QuaCrc32</a>.</p>
|
|---|
| 112 |
|
|---|
| 113 | </div>
|
|---|
| 114 | </div>
|
|---|
| 115 | <a class="anchor" id="a63a6ed3171f9243214d307da67557f7e"></a><!-- doxytag: member="QuaChecksum32::update" ref="a63a6ed3171f9243214d307da67557f7e" args="(const QByteArray &buf)=0" -->
|
|---|
| 116 | <div class="memitem">
|
|---|
| 117 | <div class="memproto">
|
|---|
| 118 | <table class="memname">
|
|---|
| 119 | <tr>
|
|---|
| 120 | <td class="memname">virtual void QuaChecksum32::update </td>
|
|---|
| 121 | <td>(</td>
|
|---|
| 122 | <td class="paramtype">const <a class="elRef" doxygen="qtcore.tags:http://doc.qt.io/qt-5//" href="http://doc.qt.io/qt-5/qbytearray.html">QByteArray</a> & </td>
|
|---|
| 123 | <td class="paramname"><em>buf</em></td><td>)</td>
|
|---|
| 124 | <td><code> [pure virtual]</code></td>
|
|---|
| 125 | </tr>
|
|---|
| 126 | </table>
|
|---|
| 127 | </div>
|
|---|
| 128 | <div class="memdoc">
|
|---|
| 129 |
|
|---|
| 130 | <p>Updates the calculated checksum for the stream. </p>
|
|---|
| 131 | <p><em>buf</em> next portion of data from the stream </p>
|
|---|
| 132 |
|
|---|
| 133 | <p>Implemented in <a class="el" href="classQuaAdler32.html#aba24f7b16aa0cdc26f81a9ad687fc653">QuaAdler32</a>, and <a class="el" href="classQuaCrc32.html#a5015d80e04afe6e6d094155b7e99888e">QuaCrc32</a>.</p>
|
|---|
| 134 |
|
|---|
| 135 | </div>
|
|---|
| 136 | </div>
|
|---|
| 137 | <a class="anchor" id="afd836e7534194fce08356be6a8336da7"></a><!-- doxytag: member="QuaChecksum32::value" ref="afd836e7534194fce08356be6a8336da7" args="()=0" -->
|
|---|
| 138 | <div class="memitem">
|
|---|
| 139 | <div class="memproto">
|
|---|
| 140 | <table class="memname">
|
|---|
| 141 | <tr>
|
|---|
| 142 | <td class="memname">virtual quint32 QuaChecksum32::value </td>
|
|---|
| 143 | <td>(</td>
|
|---|
| 144 | <td class="paramname"></td><td>)</td>
|
|---|
| 145 | <td><code> [pure virtual]</code></td>
|
|---|
| 146 | </tr>
|
|---|
| 147 | </table>
|
|---|
| 148 | </div>
|
|---|
| 149 | <div class="memdoc">
|
|---|
| 150 |
|
|---|
| 151 | <p>Value of the checksum calculated for the stream passed throw <a class="el" href="classQuaChecksum32.html#a63a6ed3171f9243214d307da67557f7e" title="Updates the calculated checksum for the stream.">update()</a>. </p>
|
|---|
| 152 | <dl class="return"><dt><b>Returns:</b></dt><dd>checksum </dd></dl>
|
|---|
| 153 |
|
|---|
| 154 | <p>Implemented in <a class="el" href="classQuaAdler32.html#a2022e1db95c23cef220b335e44d74fb1">QuaAdler32</a>, and <a class="el" href="classQuaCrc32.html#a957ce46a53862f75c89d6a3ac4f73389">QuaCrc32</a>.</p>
|
|---|
| 155 |
|
|---|
| 156 | </div>
|
|---|
| 157 | </div>
|
|---|
| 158 | <hr/>The documentation for this class was generated from the following file:<ul>
|
|---|
| 159 | <li>quazip/<a class="el" href="quachecksum32_8h_source.html">quachecksum32.h</a></li>
|
|---|
| 160 | </ul>
|
|---|
| 161 | </div>
|
|---|
| 162 | <hr class="footer"/><address class="footer"><small>Generated on Sun Apr 3 2016 08:26:25 for QuaZIP by 
|
|---|
| 163 | <a href="http://www.doxygen.org/index.html">
|
|---|
| 164 | <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.4 </small></address>
|
|---|
| 165 | </body>
|
|---|
| 166 | </html>
|
|---|
