error_8cpp-source.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Copley Motion Library: Error.cpp Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.4 --><div class="qindex"><a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a></div><div class="nav"><a class="el" href="dir_000000.html">c</a></div><h1>Error.cpp</h1><a href="Error_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/************************************************************/</span><a name="l00002"></a>00002 <span class="comment">/* */</span><a name="l00003"></a>00003 <span class="comment">/* Copley Motion Libraries */</span><a name="l00004"></a>00004 <span class="comment">/* */</span><a name="l00005"></a>00005 <span class="comment">/* Author: Stephen Glow */</span><a name="l00006"></a>00006 <span class="comment">/* */</span><a name="l00007"></a>00007 <span class="comment">/* Copyright (c) 2002-2005 Copley Controls Corp. */</span><a name="l00008"></a>00008 <span class="comment">/* http://www.copleycontrols.com */</span><a name="l00009"></a>00009 <span class="comment">/* */</span><a name="l00010"></a>00010 <span class="comment">/************************************************************/</span><a name="l00011"></a>00011 <span class="comment"></span><a name="l00012"></a>00012 <span class="comment">/** \file</span><a name="l00013"></a>00013 <span class="comment">This file handles initializing the static data objects used by the Error class.</span><a name="l00014"></a>00014 <span class="comment">*/</span><a name="l00015"></a>00015 <a name="l00016"></a>00016 <span class="preprocessor">#include "<a class="code" href="CML_8h.html">CML.h</a>"</span><a name="l00017"></a>00017 <a name="l00018"></a>00018 <a class="code" href="CML__Settings_8h.html#a13">CML_NAMESPACE_USE</a>();<a name="l00019"></a>00019 <a name="l00020"></a>00020 <a class="code" href="CML__Error_8h.html#a0">CML_NEW_ERROR</a>( <a class="code" href="classError.html">Error</a>, OK, <span class="stringliteral">"No error"</span> );<a name="l00021"></a>00021 <a class="code" href="CML__Error_8h.html#a0">CML_NEW_ERROR</a>( <a class="code" href="classError.html">Error</a>, Unknown, <span class="stringliteral">"Unknown error ID code"</span> );<a name="l00022"></a>00022 <a name="l00023"></a>00023 <span class="preprocessor">#if CML_ERROR_HASH_SIZE > 0 </span><a name="l00024"></a>00024 <span class="preprocessor"></span><span class="comment">// Error hash table</span><a name="l00025"></a>00025 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *errHash[ <a class="code" href="CML__Settings_8h.html#a8">CML_ERROR_HASH_SIZE</a> ];<a name="l00026"></a>00026 <a name="l00027"></a>00027 <span class="comment">/***************************************************************************/</span><span class="comment"></span><a name="l00028"></a>00028 <span class="comment">/**</span><a name="l00029"></a>00029 <span class="comment">Lookup the constant error object associated with the passed ID code.</span><a name="l00030"></a>00030 <span class="comment">If the passed ID doesn't correspond to any known Error object, then</span><a name="l00031"></a>00031 <span class="comment">the address of the Error::Unknown will be returned.</span><a name="l00032"></a>00032 <span class="comment"></span><a name="l00033"></a>00033 <span class="comment">@param id The ID code of the error to be found</span><a name="l00034"></a>00034 <span class="comment">@return A pointer to an error object.</span><a name="l00035"></a>00035 <span class="comment">*/</span><a name="l00036"></a>00036 <span class="comment">/***************************************************************************/</span><a name="l00037"></a>00037 <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *Error::Lookup( <a class="code" href="CML__Utils_8h.html#a7">int16</a> <span class="keywordtype">id</span> )<a name="l00038"></a>00038 {<a name="l00039"></a>00039 <span class="comment">// Look the error object up in the hash table</span><a name="l00040"></a>00040 <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *err = errHash[ <span class="keywordtype">id</span> % <a class="code" href="CML__Settings_8h.html#a8">CML_ERROR_HASH_SIZE</a> ];<a name="l00041"></a>00041 <a name="l00042"></a>00042 <span class="comment">// Search all the errors in this hash location</span><a name="l00043"></a>00043 <span class="keywordflow">while</span>( err && (err-><a class="code" href="classError.html#r0">id</a> != id) )<a name="l00044"></a>00044 err = err-><a class="code" href="classError.html#r2">next</a>;<a name="l00045"></a>00045 <a name="l00046"></a>00046 <span class="comment">// If the error wasn't found, return 'unknown'</span><a name="l00047"></a>00047 <span class="keywordflow">if</span>( !err )<a name="l00048"></a>00048 {<a name="l00049"></a>00049 <a class="code" href="CML_8h.html#a0">cml</a>.<a class="code" href="classCopleyMotionLibrary.html#a10">Error</a>( <span class="stringliteral">"Unable to locate error id: %d\n"</span>, <span class="keywordtype">id</span> );<a name="l00050"></a>00050 <span class="keywordflow">return</span> &<a class="code" href="classError.html#s1">Error::Unknown</a>;<a name="l00051"></a>00051 }<a name="l00052"></a>00052 <a name="l00053"></a>00053 <span class="keywordflow">return</span> err;<a name="l00054"></a>00054 }<a name="l00055"></a>00055 <a name="l00056"></a>00056 <span class="comment">/***************************************************************************/</span><span class="comment"></span><a name="l00057"></a>00057 <span class="comment">/**</span><a name="l00058"></a>00058 <span class="comment">Initialize the Error object hash table.</span><a name="l00059"></a>00059 <span class="comment">*/</span><a name="l00060"></a>00060 <span class="comment">/***************************************************************************/</span><a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="keywordtype">void</span> Error::InitErrorHash( <span class="keywordtype">void</span> )<a name="l00063"></a>00063 {<a name="l00064"></a>00064 <span class="keywordtype">int</span> i = <span class="keywordtype">id</span> % <a class="code" href="CML__Settings_8h.html#a8">CML_ERROR_HASH_SIZE</a>;<a name="l00065"></a>00065 next = errHash[i];<a name="l00066"></a>00066 errHash[i] = <span class="keyword">this</span>;<a name="l00067"></a>00067 }<a name="l00068"></a>00068 <a name="l00069"></a>00069 <span class="preprocessor">#endif</span><a name="l00070"></a>00070 <span class="preprocessor"></span></pre></div><hr><address style="align: right;"><small>Copley Motion Library, Copyright (c) 2002-2003<a href="http://www.copleycontrols.com"><img src="CCC_logo.gif" alt="Copley Controls Corp." align="middle" border=0 ></a></small></address></body></html>⌨️ 快捷键说明
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