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    <h2><a name="content"></a>kmail</h2>


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<h1>kmfolderindex.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++; c-file-style: "gnu" -*-</span>
<a name="l00002"></a>00002 <span class="comment">    This file is part of KMail, the KDE mail client.</span>
<a name="l00003"></a>00003 <span class="comment">    Copyright (c) 2000 Don Sanders &lt;sanders@kde.org&gt;</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment">    KMail is free software; you can redistribute it and/or modify it</span>
<a name="l00006"></a>00006 <span class="comment">    under the terms of the GNU General Public License, version 2, as</span>
<a name="l00007"></a>00007 <span class="comment">    published by the Free Software Foundation.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment">    KMail is distributed in the hope that it will be useful, but</span>
<a name="l00010"></a>00010 <span class="comment">    WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</span>
<a name="l00012"></a>00012 <span class="comment">    General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">    You should have received a copy of the GNU General Public License</span>
<a name="l00015"></a>00015 <span class="comment">    along with this program; if not, write to the Free Software</span>
<a name="l00016"></a>00016 <span class="comment">    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA</span>
<a name="l00017"></a>00017 <span class="comment">*/</span>
<a name="l00018"></a>00018 
<a name="l00019"></a>00019 <span class="preprocessor">#include "kmfolderindex.h"</span>
<a name="l00020"></a>00020 <span class="preprocessor">#include "kmfolder.h"</span>
<a name="l00021"></a>00021 <span class="preprocessor">#include &lt;config.h&gt;</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include &lt;qfileinfo.h&gt;</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include &lt;qtimer.h&gt;</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include &lt;kdebug.h&gt;</span>
<a name="l00025"></a>00025 
<a name="l00026"></a>00026 
<a name="l00027"></a>00027 <span class="preprocessor">#define HAVE_MMAP //need to get this into autoconf FIXME  --Sam</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#include &lt;unistd.h&gt;</span>
<a name="l00029"></a>00029 <span class="preprocessor">#ifdef HAVE_MMAP</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#include &lt;sys/mman.h&gt;</span>
<a name="l00031"></a>00031 <span class="preprocessor">#endif</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span>
<a name="l00033"></a>00033 <span class="comment">// Current version of the table of contents (index) files</span>
<a name="l00034"></a>00034 <span class="preprocessor">#define INDEX_VERSION 1506</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span>
<a name="l00036"></a>00036 <span class="preprocessor">#ifndef MAX_LINE</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor">#define MAX_LINE 4096</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span>
<a name="l00040"></a>00040 <span class="preprocessor">#ifndef INIT_MSGS</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#define INIT_MSGS 8</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span>
<a name="l00044"></a>00044 <span class="preprocessor">#include &lt;errno.h&gt;</span>
<a name="l00045"></a>00045 <span class="preprocessor">#include &lt;assert.h&gt;</span>
<a name="l00046"></a>00046 <span class="preprocessor">#include &lt;utime.h&gt;</span>
<a name="l00047"></a>00047 <span class="preprocessor">#include &lt;fcntl.h&gt;</span>
<a name="l00048"></a>00048 
<a name="l00049"></a>00049 <span class="preprocessor">#ifdef HAVE_BYTESWAP_H</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor">#include &lt;byteswap.h&gt;</span>
<a name="l00051"></a>00051 <span class="preprocessor">#endif</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="preprocessor">#include &lt;kapplication.h&gt;</span>
<a name="l00053"></a>00053 <span class="preprocessor">#include &lt;kcursor.h&gt;</span>
<a name="l00054"></a>00054 <span class="preprocessor">#include &lt;kmessagebox.h&gt;</span>
<a name="l00055"></a>00055 <span class="preprocessor">#include &lt;klocale.h&gt;</span>
<a name="l00056"></a>00056 <span class="preprocessor">#include "kmmsgdict.h"</span>
<a name="l00057"></a>00057 
<a name="l00058"></a>00058 <span class="comment">// We define functions as kmail_swap_NN so that we don't get compile errors</span>
<a name="l00059"></a>00059 <span class="comment">// on platforms where bswap_NN happens to be a function instead of a define.</span>
<a name="l00060"></a>00060 
<a name="l00061"></a>00061 <span class="comment">/* Swap bytes in 32 bit value.  */</span>
<a name="l00062"></a>00062 <span class="preprocessor">#ifdef bswap_32</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span><span class="preprocessor">#define kmail_swap_32(x) bswap_32(x)</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span><span class="preprocessor">#define kmail_swap_32(x) \</span>
<a name="l00066"></a>00066 <span class="preprocessor">     ((((x) &amp; 0xff000000) &gt;&gt; 24) | (((x) &amp; 0x00ff0000) &gt;&gt;  8) |           \</span>
<a name="l00067"></a>00067 <span class="preprocessor">      (((x) &amp; 0x0000ff00) &lt;&lt;  8) | (((x) &amp; 0x000000ff) &lt;&lt; 24))</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span>
<a name="l00070"></a>00070 <span class="preprocessor">#include &lt;stdlib.h&gt;</span>
<a name="l00071"></a>00071 <span class="preprocessor">#include &lt;sys/types.h&gt;</span>
<a name="l00072"></a>00072 <span class="preprocessor">#include &lt;sys/stat.h&gt;</span>
<a name="l00073"></a>00073 <span class="preprocessor">#include &lt;sys/file.h&gt;</span>
<a name="l00074"></a>00074 
<a name="l00075"></a><a class="code" href="classKMFolderIndex.html#3239e190af5ef93f3aa09b7c8858a6e1">00075</a> <a class="code" href="classKMFolderIndex.html#3239e190af5ef93f3aa09b7c8858a6e1" title="Usually a parent is given.">KMFolderIndex::KMFolderIndex</a>(<a class="code" href="classKMFolder.html" title="Mail folder.">KMFolder</a>* folder, <span class="keyword">const</span> <span class="keywordtype">char</span>* name)
<a name="l00076"></a>00076   : <a class="code" href="classFolderStorage.html" title="The FolderStorage class is the bass class for the storage related aspects of a collection...">FolderStorage</a>(folder, name), mMsgList(INIT_MSGS)
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078     <a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a> = 0;
<a name="l00079"></a>00079     mIndexStreamPtr = 0;
<a name="l00080"></a>00080     mIndexStreamPtrLength = 0;
<a name="l00081"></a>00081     mIndexSwapByteOrder = <span class="keyword">false</span>;
<a name="l00082"></a>00082     mIndexSizeOfLong = <span class="keyword">sizeof</span>(long);
<a name="l00083"></a>00083     mIndexId = 0;
<a name="l00084"></a>00084     <a class="code" href="classKMFolderIndex.html#51ff8dc0445c9862a5d6cd9645b24dec" title="offset of header of index file">mHeaderOffset</a>   = 0;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 
<a name="l00087"></a>00087 
<a name="l00088"></a>00088 KMFolderIndex::~KMFolderIndex()
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091 
<a name="l00092"></a>00092 
<a name="l00093"></a><a class="code" href="classKMFolderIndex.html#ad6093d7502a422b1d43e9d693d178b2">00093</a> QString <a class="code" href="classKMFolderIndex.html#ad6093d7502a422b1d43e9d693d178b2" title="Returns full path to index file.">KMFolderIndex::indexLocation</a>()<span class="keyword"> const</span>
<a name="l00094"></a>00094 <span class="keyword"></span>{
<a name="l00095"></a>00095   QString sLocation(folder()-&gt;path());
<a name="l00096"></a>00096 
<a name="l00097"></a>00097   <span class="keywordflow">if</span> ( !sLocation.isEmpty() ) {
<a name="l00098"></a>00098     sLocation += <span class="charliteral">'/'</span>;
<a name="l00099"></a>00099     sLocation += <span class="charliteral">'.'</span>;
<a name="l00100"></a>00100   }
<a name="l00101"></a>00101   sLocation += <a class="code" href="classFolderStorage.html#f2394e2926a29936f912c801a0bb0cf0" title="Escape a leading dot.">dotEscape</a>(<a class="code" href="classFolderStorage.html#a8a7c5acd107aeb89055a2b433bcba9c" title="Returns the filename of the folder (reimplemented in KMFolderImap).">fileName</a>());
<a name="l00102"></a>00102   sLocation += <span class="stringliteral">".index"</span>;
<a name="l00103"></a>00103 
<a name="l00104"></a>00104   <span class="keywordflow">return</span> sLocation;
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 
<a name="l00107"></a><a class="code" href="classKMFolderIndex.html#ae0d44e45e2aa994d8f3af53d5e8d4c0">00107</a> <span class="keywordtype">int</span> <a class="code" href="classKMFolderIndex.html#ae0d44e45e2aa994d8f3af53d5e8d4c0" title="Incrementally update the index if possible else call writeIndex.">KMFolderIndex::updateIndex</a>()
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109   <span class="keywordflow">if</span> (!<a class="code" href="classFolderStorage.html#ee1ba572e534928d2eaa5ba709b4c6da" title="is the automatic creation of a index file allowed ?">mAutoCreateIndex</a>)
<a name="l00110"></a>00110     <span class="keywordflow">return</span> 0;
<a name="l00111"></a>00111   <span class="keywordtype">bool</span> <a class="code" href="classFolderStorage.html#60a6eb7fb46447fed3188c922f286ae9" title="Returns TRUE if the table of contents is dirty.">dirty</a> = <a class="code" href="classFolderStorage.html#b8ad404c8cf5bd1ba98cb32752ecc42b" title="if the index is dirty it will be recreated upon close()">mDirty</a>;
<a name="l00112"></a>00112   mDirtyTimer-&gt;stop();
<a name="l00113"></a>00113   <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; !dirty &amp;&amp; i&lt;<a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.<a class="code" href="classKMMsgList.html#525672bd338af4916b6b7e2cc534a55b" title="Returns first unused index (index of last message plus one).">high</a>(); i++)
<a name="l00114"></a>00114     <span class="keywordflow">if</span> (<a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.at(i))
<a name="l00115"></a>00115       dirty = !<a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.at(i)-&gt;syncIndexString();
<a name="l00116"></a>00116   <span class="keywordflow">if</span> (!dirty) { <span class="comment">// Update successful</span>
<a name="l00117"></a>00117       <a class="code" href="classFolderStorage.html#480e9679249ec3bc2696283f0aec4f98" title="Touches the message serial number file.">touchFolderIdsFile</a>();
<a name="l00118"></a>00118       <span class="keywordflow">return</span> 0;
<a name="l00119"></a>00119   }
<a name="l00120"></a>00120   <span class="keywordflow">return</span> <a class="code" href="classKMFolderIndex.html#4264d53186958a4b70c442133804b933" title="Write index to index-file.">writeIndex</a>();
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 
<a name="l00123"></a><a class="code" href="classKMFolderIndex.html#4264d53186958a4b70c442133804b933">00123</a> <span class="keywordtype">int</span> <a class="code" href="classKMFolderIndex.html#4264d53186958a4b70c442133804b933" title="Write index to index-file.">KMFolderIndex::writeIndex</a>( <span class="keywordtype">bool</span> createEmptyIndex )
<a name="l00124"></a>00124 {
<a name="l00125"></a>00125   QString tempName;
<a name="l00126"></a>00126   QString indexName;
<a name="l00127"></a>00127   mode_t old_umask;
<a name="l00128"></a>00128   <span class="keywordtype">int</span> len;
<a name="l00129"></a>00129   <span class="keyword">const</span> uchar *buffer = 0;
<a name="l00130"></a>00130 
<a name="l00131"></a>00131   indexName = <a class="code" href="classKMFolderIndex.html#ad6093d7502a422b1d43e9d693d178b2" title="Returns full path to index file.">indexLocation</a>();
<a name="l00132"></a>00132   tempName = indexName + <span class="stringliteral">".temp"</span>;
<a name="l00133"></a>00133   unlink(QFile::encodeName(tempName));
<a name="l00134"></a>00134 
<a name="l00135"></a>00135   <span class="comment">// We touch the folder, otherwise the index is regenerated, if KMail is</span>
<a name="l00136"></a>00136   <span class="comment">// running, while the clock switches from daylight savings time to normal time</span>
<a name="l00137"></a>00137   utime(QFile::encodeName(<a class="code" href="classFolderStorage.html#a144bcff0830fe5fb8d29bca070188ed" title="Returns full path to folder file.">location</a>()), 0);
<a name="l00138"></a>00138 
<a name="l00139"></a>00139   old_umask = umask(077);
<a name="l00140"></a>00140   FILE *tmpIndexStream = fopen(QFile::encodeName(tempName), <span class="stringliteral">"w"</span>);
<a name="l00141"></a>00141   umask(old_umask);
<a name="l00142"></a>00142   <span class="keywordflow">if</span> (!tmpIndexStream)
<a name="l00143"></a>00143     <span class="keywordflow">return</span> errno;
<a name="l00144"></a>00144 
<a name="l00145"></a>00145   fprintf(tmpIndexStream, <span class="stringliteral">"# KMail-Index V%d\n"</span>, INDEX_VERSION);
<a name="l00146"></a>00146 
<a name="l00147"></a>00147   <span class="comment">// Header</span>
<a name="l00148"></a>00148   Q_UINT32 byteOrder = 0x12345678;
<a name="l00149"></a>00149   Q_UINT32 sizeOfLong = <span class="keyword">sizeof</span>(long);
<a name="l00150"></a>00150 
<a name="l00151"></a>00151   Q_UINT32 header_length = <span class="keyword">sizeof</span>(byteOrder)+<span class="keyword">sizeof</span>(sizeOfLong);
<a name="l00152"></a>00152   <span class="keywordtype">char</span> pad_char = <span class="charliteral">'\0'</span>;
<a name="l00153"></a>00153   fwrite(&amp;pad_char, <span class="keyword">sizeof</span>(pad_char), 1, tmpIndexStream);
<a name="l00154"></a>00154   fwrite(&amp;header_length, <span class="keyword">sizeof</span>(header_length), 1, tmpIndexStream);
<a name="l00155"></a>00155 
<a name="l00156"></a>00156   <span class="comment">// Write header</span>
<a name="l00157"></a>00157   fwrite(&amp;byteOrder, <span class="keyword">sizeof</span>(byteOrder), 1, tmpIndexStream);
<a name="l00158"></a>00158   fwrite(&amp;sizeOfLong, <span class="keyword">sizeof</span>(sizeOfLong), 1, tmpIndexStream);
<a name="l00159"></a>00159 
<a name="l00160"></a>00160   off_t nho = ftell(tmpIndexStream);
<a name="l00161"></a>00161 
<a name="l00162"></a>00162   <span class="keywordflow">if</span> ( !createEmptyIndex ) {
<a name="l00163"></a>00163     KMMsgBase* msgBase;
<a name="l00164"></a>00164     <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i&lt;<a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.<a class="code" href="classKMMsgList.html#525672bd338af4916b6b7e2cc534a55b" title="Returns first unused index (index of last message plus one).">high</a>(); i++)
<a name="l00165"></a>00165     {
<a name="l00166"></a>00166       <span class="keywordflow">if</span> (!(msgBase = <a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.at(i))) <span class="keywordflow">continue</span>;
<a name="l00167"></a>00167       buffer = msgBase-&gt;asIndexString(len);
<a name="l00168"></a>00168       fwrite(&amp;len,<span class="keyword">sizeof</span>(len), 1, tmpIndexStream);
<a name="l00169"></a>00169 
<a name="l00170"></a>00170       off_t tmp = ftell(tmpIndexStream);
<a name="l00171"></a>00171       msgBase-&gt;setIndexOffset(tmp);
<a name="l00172"></a>00172       msgBase-&gt;setIndexLength(len);
<a name="l00173"></a>00173       <span class="keywordflow">if</span>(fwrite(buffer, len, 1, tmpIndexStream) != 1)
<a name="l00174"></a>00174     kdDebug(5006) &lt;&lt; <span class="stringliteral">"Whoa! "</span> &lt;&lt; __FILE__ &lt;&lt; <span class="stringliteral">":"</span> &lt;&lt; __LINE__ &lt;&lt; endl;
<a name="l00175"></a>00175     }
<a name="l00176"></a>00176   }
<a name="l00177"></a>00177 
<a name="l00178"></a>00178   <span class="keywordtype">int</span> fError = ferror( tmpIndexStream );
<a name="l00179"></a>00179   <span class="keywordflow">if</span>( fError != 0 ) {
<a name="l00180"></a>00180     fclose( tmpIndexStream );
<a name="l00181"></a>00181     <span class="keywordflow">return</span> fError;
<a name="l00182"></a>00182   }
<a name="l00183"></a>00183   <span class="keywordflow">if</span>(    ( fflush( tmpIndexStream ) != 0 )
<a name="l00184"></a>00184       || ( fsync( fileno( tmpIndexStream ) ) != 0 ) ) {
<a name="l00185"></a>00185     <span class="keywordtype">int</span> errNo = errno;
<a name="l00186"></a>00186     fclose( tmpIndexStream );
<a name="l00187"></a>00187     <span class="keywordflow">return</span> errNo;
<a name="l00188"></a>00188   }
<a name="l00189"></a>00189   <span class="keywordflow">if</span>( fclose( tmpIndexStream ) != 0 )
<a name="l00190"></a>00190     <span class="keywordflow">return</span> errno;<a class="code" href="classFolderStorage.html#6112919b68cbd62e1cdc18347d7c8967" title="Physically rename the folder."></a>
<a name="l00191"></a>00191 <a class="code" href="classFolderStorage.html#6112919b68cbd62e1cdc18347d7c8967" title="Physically rename the folder."></a>
<a name="l00192"></a>00192 <a class="code" href="classFolderStorage.html#6112919b68cbd62e1cdc18347d7c8967" title="Physically rename the folder.">  ::rename</a>(QFile::encodeName(tempName), QFile::encodeName(indexName));
<a name="l00193"></a>00193   <a class="code" href="classKMFolderIndex.html#51ff8dc0445c9862a5d6cd9645b24dec" title="offset of header of index file">mHeaderOffset</a> = nho;
<a name="l00194"></a>00194   <span class="keywordflow">if</span> (<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>)
<a name="l00195"></a>00195       fclose(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00196"></a>00196 
<a name="l00197"></a>00197   <span class="keywordflow">if</span> ( createEmptyIndex )
<a name="l00198"></a>00198     <span class="keywordflow">return</span> 0;
<a name="l00199"></a>00199 
<a name="l00200"></a>00200   <a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a> = fopen(QFile::encodeName(indexName), <span class="stringliteral">"r+"</span>); <span class="comment">// index file</span>
<a name="l00201"></a>00201   assert( <a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a> );
<a name="l00202"></a>00202   fcntl(fileno(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>), F_SETFD, FD_CLOEXEC);
<a name="l00203"></a>00203 
<a name="l00204"></a>00204   updateIndexStreamPtr();
<a name="l00205"></a>00205 
<a name="l00206"></a>00206   <a class="code" href="classFolderStorage.html#107d0e0f8f41d30aed452591de043670" title="Writes the message serial number file.">writeFolderIdsFile</a>();
<a name="l00207"></a>00207 
<a name="l00208"></a>00208   <a class="code" href="classFolderStorage.html#a858aa5f7ba0da3c5552460f20222b0f" title="Change the dirty flag.">setDirty</a>( <span class="keyword">false</span> );
<a name="l00209"></a>00209   <span class="keywordflow">return</span> 0;
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211 
<a name="l00212"></a>00212 
<a name="l00213"></a><a class="code" href="classKMFolderIndex.html#b00aa3b371fc4f76fdc76e70b938bec3">00213</a> <span class="keywordtype">bool</span> <a class="code" href="classKMFolderIndex.html#b00aa3b371fc4f76fdc76e70b938bec3" title="Read index file and fill the message-info list mMsgList.">KMFolderIndex::readIndex</a>()
<a name="l00214"></a>00214 {
<a name="l00215"></a>00215   Q_INT32 len;
<a name="l00216"></a>00216   KMMsgInfo* mi;
<a name="l00217"></a>00217 
<a name="l00218"></a>00218   assert(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a> != 0);
<a name="l00219"></a>00219   rewind(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00220"></a>00220 
<a name="l00221"></a>00221   clearIndex();
<a name="l00222"></a>00222   <span class="keywordtype">int</span> version;
<a name="l00223"></a>00223 
<a name="l00224"></a>00224   <a class="code" href="classFolderStorage.html#a858aa5f7ba0da3c5552460f20222b0f" title="Change the dirty flag.">setDirty</a>( <span class="keyword">false</span> );
<a name="l00225"></a>00225 
<a name="l00226"></a>00226   <span class="keywordflow">if</span> (!<a class="code" href="classKMFolderIndex.html#1e481ed4136f4291835e0d1a8352048d" title="Read index header.">readIndexHeader</a>(&amp;version)) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00227"></a>00227 
<a name="l00228"></a>00228   <a class="code" href="classFolderStorage.html#e6e47f7f83cedef350cda526c4abb564" title="number of unread messages, -1 if not yet set">mUnreadMsgs</a> = 0;
<a name="l00229"></a>00229   mTotalMsgs = 0;
<a name="l00230"></a>00230   <a class="code" href="classKMFolderIndex.html#51ff8dc0445c9862a5d6cd9645b24dec" title="offset of header of index file">mHeaderOffset</a> = ftell(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00231"></a>00231 
<a name="l00232"></a>00232   clearIndex();
<a name="l00233"></a>00233   <span class="keywordflow">while</span> (!feof(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>))
<a name="l00234"></a>00234   {
<a name="l00235"></a>00235     mi = 0;
<a name="l00236"></a>00236     <span class="keywordflow">if</span>(version &gt;= 1505) {
<a name="l00237"></a>00237       <span class="keywordflow">if</span>(!fread(&amp;len, <span class="keyword">sizeof</span>(len), 1, <a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>))
<a name="l00238"></a>00238         <span class="keywordflow">break</span>;
<a name="l00239"></a>00239 
<a name="l00240"></a>00240       <span class="keywordflow">if</span> (mIndexSwapByteOrder)
<a name="l00241"></a>00241         len = kmail_swap_32(len);
<a name="l00242"></a>00242 
<a name="l00243"></a>00243       off_t offs = ftell(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00244"></a>00244       <span class="keywordflow">if</span>(fseek(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>, len, SEEK_CUR))
<a name="l00245"></a>00245         <span class="keywordflow">break</span>;
<a name="l00246"></a>00246       mi = <span class="keyword">new</span> KMMsgInfo(folder(), offs, len);
<a name="l00247"></a>00247     }
<a name="l00248"></a>00248     <span class="keywordflow">else</span>
<a name="l00249"></a>00249     {
<a name="l00250"></a>00250       QCString line(MAX_LINE);
<a name="l00251"></a>00251       fgets(line.data(), MAX_LINE, <a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00252"></a>00252       <span class="keywordflow">if</span> (feof(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>)) <span class="keywordflow">break</span>;
<a name="l00253"></a>00253       <span class="keywordflow">if</span> (*line.data() == <span class="charliteral">'\0'</span>) {
<a name="l00254"></a>00254       fclose(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00255"></a>00255       <a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a> = 0;
<a name="l00256"></a>00256       clearIndex();
<a name="l00257"></a>00257       <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00258"></a>00258       }
<a name="l00259"></a>00259       mi = <span class="keyword">new</span> KMMsgInfo(folder());
<a name="l00260"></a>00260       mi-&gt;compat_fromOldIndexString(line, mConvertToUtf8);
<a name="l00261"></a>00261     }
<a name="l00262"></a>00262     <span class="keywordflow">if</span>(!mi)
<a name="l00263"></a>00263       <span class="keywordflow">break</span>;
<a name="l00264"></a>00264 
<a name="l00265"></a>00265     <span class="keywordflow">if</span> (mi-&gt;isDeleted())
<a name="l00266"></a>00266     {
<a name="l00267"></a>00267       <span class="keyword">delete</span> mi;  <span class="comment">// skip messages that are marked as deleted</span>
<a name="l00268"></a>00268       <a class="code" href="classFolderStorage.html#a858aa5f7ba0da3c5552460f20222b0f" title="Change the dirty flag.">setDirty</a>( <span class="keyword">true</span> );
<a name="l00269"></a>00269       <a class="code" href="classFolderStorage.html#336a4922d305fbd6a2d7422d8b932e25" title="sven: true if on destruct folder needs to be compacted.">needsCompact</a> = <span class="keyword">true</span>;  <span class="comment">//We have deleted messages - needs to be compacted</span>
<a name="l00270"></a>00270       <span class="keywordflow">continue</span>;
<a name="l00271"></a>00271     }
<a name="l00272"></a>00272 <span class="preprocessor">#ifdef OBSOLETE</span>
<a name="l00273"></a>00273 <span class="preprocessor"></span>    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mi-&gt;isNew())
<a name="l00274"></a>00274     {
<a name="l00275"></a>00275       mi-&gt;setStatus(KMMsgStatusUnread);
<a name="l00276"></a>00276       mi-&gt;setDirty(<span class="keyword">false</span>);
<a name="l00277"></a>00277     }
<a name="l00278"></a>00278 <span class="preprocessor">#endif</span>
<a name="l00279"></a>00279 <span class="preprocessor"></span>    <span class="keywordflow">if</span> ((mi-&gt;isNew()) || (mi-&gt;isUnread()) ||
<a name="l00280"></a>00280         (folder() == kmkernel-&gt;outboxFolder()))
<a name="l00281"></a>00281     {
<a name="l00282"></a>00282       ++<a class="code" href="classFolderStorage.html#e6e47f7f83cedef350cda526c4abb564" title="number of unread messages, -1 if not yet set">mUnreadMsgs</a>;
<a name="l00283"></a>00283       <span class="keywordflow">if</span> (<a class="code" href="classFolderStorage.html#e6e47f7f83cedef350cda526c4abb564" title="number of unread messages, -1 if not yet set">mUnreadMsgs</a> == 0) ++<a class="code" href="classFolderStorage.html#e6e47f7f83cedef350cda526c4abb564" title="number of unread messages, -1 if not yet set">mUnreadMsgs</a>;
<a name="l00284"></a>00284     }
<a name="l00285"></a>00285     <a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.<a class="code" href="classKMMsgList.html#3d628e7f421be3351e3e58455b6a763b" title="Append given message after the last used message.">append</a>(mi, <span class="keyword">false</span>);
<a name="l00286"></a>00286   }
<a name="l00287"></a>00287   <span class="keywordflow">if</span>( version &lt; 1505)
<a name="l00288"></a>00288   {
<a name="l00289"></a>00289     mConvertToUtf8 = <span class="keyword">false</span>;
<a name="l00290"></a>00290     <a class="code" href="classFolderStorage.html#a858aa5f7ba0da3c5552460f20222b0f" title="Change the dirty flag.">setDirty</a>( <span class="keyword">true</span> );
<a name="l00291"></a>00291     <a class="code" href="classKMFolderIndex.html#4264d53186958a4b70c442133804b933" title="Write index to index-file.">writeIndex</a>();
<a name="l00292"></a>00292   }
<a name="l00293"></a>00293   mTotalMsgs = <a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.<a class="code" href="classKMMsgList.html#c98dd76b597a54c9bd68feed59276809" title="Number of messages in the array.">count</a>();
<a name="l00294"></a>00294   <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00295"></a>00295 }
<a name="l00296"></a>00296 
<a name="l00297"></a>00297 
<a name="l00298"></a><a class="code" href="classKMFolderIndex.html#69baae844f81450653ba2c76bdba0b82">00298</a> <span class="keywordtype">int</span> <a class="code" href="classKMFolderIndex.html#69baae844f81450653ba2c76bdba0b82" title="Number of messages in this folder.">KMFolderIndex::count</a>(<span class="keywordtype">bool</span> cache)<span class="keyword"> const</span>
<a name="l00299"></a>00299 <span class="keyword"></span>{
<a name="l00300"></a>00300   <span class="keywordtype">int</span> res = <a class="code" href="classFolderStorage.html#69529ce2d21f9dcf28e06ef4fb7f2a6f" title="Number of messages in this folder.">FolderStorage::count</a>(cache);
<a name="l00301"></a>00301   <span class="keywordflow">if</span> (res == -1)
<a name="l00302"></a>00302     res = <a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.<a class="code" href="classKMMsgList.html#c98dd76b597a54c9bd68feed59276809" title="Number of messages in the array.">count</a>();
<a name="l00303"></a>00303   <span class="keywordflow">return</span> res;
<a name="l00304"></a>00304 }
<a name="l00305"></a>00305 
<a name="l00306"></a>00306 
<a name="l00307"></a><a class="code" href="classKMFolderIndex.html#1e481ed4136f4291835e0d1a8352048d">00307</a> <span class="keywordtype">bool</span> <a class="code" href="classKMFolderIndex.html#1e481ed4136f4291835e0d1a8352048d" title="Read index header.">KMFolderIndex::readIndexHeader</a>(<span class="keywordtype">int</span> *gv)
<a name="l00308"></a>00308 {
<a name="l00309"></a>00309   <span class="keywordtype">int</span> indexVersion;
<a name="l00310"></a>00310   assert(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a> != 0);
<a name="l00311"></a>00311   mIndexSwapByteOrder = <span class="keyword">false</span>;
<a name="l00312"></a>00312   mIndexSizeOfLong = <span class="keyword">sizeof</span>(long);
<a name="l00313"></a>00313 
<a name="l00314"></a>00314   <span class="keywordtype">int</span> ret = fscanf(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>, <span class="stringliteral">"# KMail-Index V%d\n"</span>, &amp;indexVersion);
<a name="l00315"></a>00315   <span class="keywordflow">if</span> ( ret == EOF || ret == 0 )
<a name="l00316"></a>00316       <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// index file has invalid header</span>
<a name="l00317"></a>00317   <span class="keywordflow">if</span>(gv)
<a name="l00318"></a>00318       *gv = indexVersion;
<a name="l00319"></a>00319   <span class="keywordflow">if</span> (indexVersion &lt; 1505 ) {
<a name="l00320"></a>00320       <span class="keywordflow">if</span>(indexVersion == 1503) {
<a name="l00321"></a>00321       kdDebug(5006) &lt;&lt; <span class="stringliteral">"Converting old index file "</span> &lt;&lt; <a class="code" href="classKMFolderIndex.html#ad6093d7502a422b1d43e9d693d178b2" title="Returns full path to index file.">indexLocation</a>() &lt;&lt; <span class="stringliteral">" to utf-8"</span> &lt;&lt; endl;
<a name="l00322"></a>00322       mConvertToUtf8 = <span class="keyword">true</span>;
<a name="l00323"></a>00323       }
<a name="l00324"></a>00324       <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00325"></a>00325   } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (indexVersion == 1505) {
<a name="l00326"></a>00326   } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (indexVersion &lt; INDEX_VERSION) {
<a name="l00327"></a>00327       kdDebug(5006) &lt;&lt; <span class="stringliteral">"Index file "</span> &lt;&lt; <a class="code" href="classKMFolderIndex.html#ad6093d7502a422b1d43e9d693d178b2" title="Returns full path to index file.">indexLocation</a>() &lt;&lt; <span class="stringliteral">" is out of date. Re-creating it."</span> &lt;&lt; endl;
<a name="l00328"></a>00328       <a class="code" href="classKMFolderIndex.html#be97237cf5343fb1a3cd9788bad67bc6" title="Create index file from messages file and fill the message-info list mMsgList.">createIndexFromContents</a>();
<a name="l00329"></a>00329       <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00330"></a>00330   } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(indexVersion &gt; INDEX_VERSION) {
<a name="l00331"></a>00331       kapp-&gt;setOverrideCursor(KCursor::arrowCursor());
<a name="l00332"></a>00332       <span class="keywordtype">int</span> r = KMessageBox::questionYesNo(0,
<a name="l00333"></a>00333                      i18n(
<a name="l00334"></a>00334                         <span class="stringliteral">"The mail index for '%1' is from an unknown version of KMail (%2).\n"</span>
<a name="l00335"></a>00335                         <span class="stringliteral">"This index can be regenerated from your mail folder, but some "</span>
<a name="l00336"></a>00336                         <span class="stringliteral">"information, including status flags, may be lost. Do you wish "</span>
<a name="l00337"></a>00337                         <span class="stringliteral">"to downgrade your index file?"</span>) .arg(name()) .arg(indexVersion), QString::null, i18n(<span class="stringliteral">"Downgrade"</span>), i18n(<span class="stringliteral">"Do Not Downgrade"</span>) );
<a name="l00338"></a>00338       kapp-&gt;restoreOverrideCursor();
<a name="l00339"></a>00339       <span class="keywordflow">if</span> (r == KMessageBox::Yes)
<a name="l00340"></a>00340       <a class="code" href="classKMFolderIndex.html#be97237cf5343fb1a3cd9788bad67bc6" title="Create index file from messages file and fill the message-info list mMsgList.">createIndexFromContents</a>();
<a name="l00341"></a>00341       <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00342"></a>00342   }
<a name="l00343"></a>00343   <span class="keywordflow">else</span> {
<a name="l00344"></a>00344       <span class="comment">// Header</span>
<a name="l00345"></a>00345       Q_UINT32 byteOrder = 0;
<a name="l00346"></a>00346       Q_UINT32 sizeOfLong = <span class="keyword">sizeof</span>(long); <span class="comment">// default</span>
<a name="l00347"></a>00347 
<a name="l00348"></a>00348       Q_UINT32 header_length = 0;
<a name="l00349"></a>00349       fseek(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>, <span class="keyword">sizeof</span>(<span class="keywordtype">char</span>), SEEK_CUR );
<a name="l00350"></a>00350       fread(&amp;header_length, <span class="keyword">sizeof</span>(header_length), 1, <a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00351"></a>00351       <span class="keywordflow">if</span> (header_length &gt; 0xFFFF)
<a name="l00352"></a>00352          header_length = kmail_swap_32(header_length);
<a name="l00353"></a>00353 
<a name="l00354"></a>00354       off_t endOfHeader = ftell(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>) + header_length;
<a name="l00355"></a>00355 
<a name="l00356"></a>00356       <span class="keywordtype">bool</span> needs_update = <span class="keyword">true</span>;
<a name="l00357"></a>00357       <span class="comment">// Process available header parts</span>
<a name="l00358"></a>00358       <span class="keywordflow">if</span> (header_length &gt;= <span class="keyword">sizeof</span>(byteOrder))
<a name="l00359"></a>00359       {
<a name="l00360"></a>00360          fread(&amp;byteOrder, <span class="keyword">sizeof</span>(byteOrder), 1, <a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00361"></a>00361          mIndexSwapByteOrder = (byteOrder == 0x78563412);
<a name="l00362"></a>00362          header_length -= <span class="keyword">sizeof</span>(byteOrder);
<a name="l00363"></a>00363 
<a name="l00364"></a>00364          <span class="keywordflow">if</span> (header_length &gt;= <span class="keyword">sizeof</span>(sizeOfLong))
<a name="l00365"></a>00365          {
<a name="l00366"></a>00366             fread(&amp;sizeOfLong, <span class="keyword">sizeof</span>(sizeOfLong), 1, <a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00367"></a>00367             <span class="keywordflow">if</span> (mIndexSwapByteOrder)
<a name="l00368"></a>00368                sizeOfLong = kmail_swap_32(sizeOfLong);
<a name="l00369"></a>00369             mIndexSizeOfLong = sizeOfLong;
<a name="l00370"></a>00370             header_length -= <span class="keyword">sizeof</span>(sizeOfLong);
<a name="l00371"></a>00371             needs_update = <span class="keyword">false</span>;
<a name="l00372"></a>00372          }
<a name="l00373"></a>00373       }
<a name="l00374"></a>00374       <span class="keywordflow">if</span> (needs_update || mIndexSwapByteOrder || (mIndexSizeOfLong != <span class="keyword">sizeof</span>(<span class="keywordtype">long</span>)))
<a name="l00375"></a>00375     <a class="code" href="classFolderStorage.html#a858aa5f7ba0da3c5552460f20222b0f" title="Change the dirty flag.">setDirty</a>( <span class="keyword">true</span> );
<a name="l00376"></a>00376       <span class="comment">// Seek to end of header</span>
<a name="l00377"></a>00377       fseek(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>, endOfHeader, SEEK_SET );
<a name="l00378"></a>00378 
<a name="l00379"></a>00379       <span class="keywordflow">if</span> (mIndexSwapByteOrder)
<a name="l00380"></a>00380          kdDebug(5006) &lt;&lt; <span class="stringliteral">"Index File has byte order swapped!"</span> &lt;&lt; endl;
<a name="l00381"></a>00381       <span class="keywordflow">if</span> (mIndexSizeOfLong != <span class="keyword">sizeof</span>(<span class="keywordtype">long</span>))
<a name="l00382"></a>00382          kdDebug(5006) &lt;&lt; <span class="stringliteral">"Index File sizeOfLong is "</span> &lt;&lt; mIndexSizeOfLong &lt;&lt; <span class="stringliteral">" while sizeof(long) is "</span> &lt;&lt; <span class="keyword">sizeof</span>(long) &lt;&lt; <span class="stringliteral">" !"</span> &lt;&lt; endl;
<a name="l00383"></a>00383 
<a name="l00384"></a>00384   }
<a name="l00385"></a>00385   <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00386"></a>00386 }
<a name="l00387"></a>00387 
<a name="l00388"></a>00388 
<a name="l00389"></a>00389 <span class="preprocessor">#ifdef HAVE_MMAP</span>
<a name="l00390"></a>00390 <span class="preprocessor"></span><span class="keywordtype">bool</span> KMFolderIndex::updateIndexStreamPtr(<span class="keywordtype">bool</span> just_close)
<a name="l00391"></a>00391 <span class="preprocessor">#else</span>
<a name="l00392"></a>00392 <span class="preprocessor"></span><span class="keywordtype">bool</span> KMFolderIndex::updateIndexStreamPtr(<span class="keywordtype">bool</span>)
<a name="l00393"></a>00393 <span class="preprocessor">#endif</span>
<a name="l00394"></a>00394 <span class="preprocessor"></span>{
<a name="l00395"></a>00395     <span class="comment">// We touch the folder, otherwise the index is regenerated, if KMail is</span>
<a name="l00396"></a>00396     <span class="comment">// running, while the clock switches from daylight savings time to normal time</span>
<a name="l00397"></a>00397     utime(QFile::encodeName(<a class="code" href="classFolderStorage.html#a144bcff0830fe5fb8d29bca070188ed" title="Returns full path to folder file.">location</a>()), 0);
<a name="l00398"></a>00398     utime(QFile::encodeName(<a class="code" href="classKMFolderIndex.html#ad6093d7502a422b1d43e9d693d178b2" title="Returns full path to index file.">indexLocation</a>()), 0);
<a name="l00399"></a>00399     utime(QFile::encodeName( KMMsgDict::getFolderIdsLocation( *<span class="keyword">this</span> ) ), 0);
<a name="l00400"></a>00400 
<a name="l00401"></a>00401   mIndexSwapByteOrder = <span class="keyword">false</span>;
<a name="l00402"></a>00402 <span class="preprocessor">#ifdef HAVE_MMAP</span>
<a name="l00403"></a>00403 <span class="preprocessor"></span>    <span class="keywordflow">if</span>(just_close) {
<a name="l00404"></a>00404     <span class="keywordflow">if</span>(mIndexStreamPtr)
<a name="l00405"></a>00405         munmap((<span class="keywordtype">char</span> *)mIndexStreamPtr, mIndexStreamPtrLength);
<a name="l00406"></a>00406     mIndexStreamPtr = 0;
<a name="l00407"></a>00407     mIndexStreamPtrLength = 0;
<a name="l00408"></a>00408     <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00409"></a>00409     }
<a name="l00410"></a>00410 
<a name="l00411"></a>00411     assert(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>);
<a name="l00412"></a>00412     <span class="keyword">struct </span>stat stat_buf;
<a name="l00413"></a>00413     <span class="keywordflow">if</span>(fstat(fileno(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>), &amp;stat_buf) == -1) {
<a name="l00414"></a>00414     <span class="keywordflow">if</span>(mIndexStreamPtr)
<a name="l00415"></a>00415         munmap((<span class="keywordtype">char</span> *)mIndexStreamPtr, mIndexStreamPtrLength);
<a name="l00416"></a>00416     mIndexStreamPtr = 0;
<a name="l00417"></a>00417     mIndexStreamPtrLength = 0;
<a name="l00418"></a>00418     <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00419"></a>00419     }
<a name="l00420"></a>00420     <span class="keywordflow">if</span>(mIndexStreamPtr)
<a name="l00421"></a>00421     munmap((<span class="keywordtype">char</span> *)mIndexStreamPtr, mIndexStreamPtrLength);
<a name="l00422"></a>00422     mIndexStreamPtrLength = stat_buf.st_size;
<a name="l00423"></a>00423     mIndexStreamPtr = (uchar *)mmap(0, mIndexStreamPtrLength, PROT_READ, MAP_SHARED,
<a name="l00424"></a>00424                     fileno(<a class="code" href="classKMFolderIndex.html#3701ad77a16e49969997705d7223f221" title="table of contents file">mIndexStream</a>), 0);
<a name="l00425"></a>00425     <span class="keywordflow">if</span>(mIndexStreamPtr == MAP_FAILED) {
<a name="l00426"></a>00426     mIndexStreamPtr = 0;
<a name="l00427"></a>00427     mIndexStreamPtrLength = 0;
<a name="l00428"></a>00428     <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00429"></a>00429     }
<a name="l00430"></a>00430 <span class="preprocessor">#endif</span>
<a name="l00431"></a>00431 <span class="preprocessor"></span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00432"></a>00432 }
<a name="l00433"></a>00433 
<a name="l00434"></a>00434 
<a name="l00435"></a><a class="code" href="classKMFolderIndex.html#8e15ac94a978f73b6c0bef0ff6e53814">00435</a> <a class="code" href="classKMFolderIndex.html#729bb121dd39d09834297118dda6655b" title="This enum indicates the status of the index file.">KMFolderIndex::IndexStatus</a> <a class="code" href="classKMFolderIndex.html#8e15ac94a978f73b6c0bef0ff6e53814" title="Tests whether the contents of this folder is newer than the index.">KMFolderIndex::indexStatus</a>()
<a name="l00436"></a>00436 {
<a name="l00437"></a>00437     QFileInfo contInfo(<a class="code" href="classFolderStorage.html#a144bcff0830fe5fb8d29bca070188ed" title="Returns full path to folder file.">location</a>());
<a name="l00438"></a>00438     QFileInfo indInfo(<a class="code" href="classKMFolderIndex.html#ad6093d7502a422b1d43e9d693d178b2" title="Returns full path to index file.">indexLocation</a>());
<a name="l00439"></a>00439 
<a name="l00440"></a>00440     <span class="keywordflow">if</span> (!contInfo.exists()) <span class="keywordflow">return</span> KMFolderIndex::IndexOk;
<a name="l00441"></a>00441     <span class="keywordflow">if</span> (!indInfo.exists()) <span class="keywordflow">return</span> KMFolderIndex::IndexMissing;
<a name="l00442"></a>00442 
<a name="l00443"></a>00443     <span class="keywordflow">return</span> ( contInfo.lastModified() &gt; indInfo.lastModified() )
<a name="l00444"></a>00444         ? KMFolderIndex::IndexTooOld
<a name="l00445"></a>00445         : KMFolderIndex::IndexOk;
<a name="l00446"></a>00446 }
<a name="l00447"></a>00447 
<a name="l00448"></a>00448 <span class="keywordtype">void</span> KMFolderIndex::clearIndex(<span class="keywordtype">bool</span> autoDelete, <span class="keywordtype">bool</span> syncDict)
<a name="l00449"></a>00449 {
<a name="l00450"></a>00450     <a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.<a class="code" href="classKMMsgList.html#de2f36a7b28ee14d033e0a18bed51b67" title="Clear messages.">clear</a>(autoDelete, syncDict);
<a name="l00451"></a>00451 }
<a name="l00452"></a>00452 
<a name="l00453"></a>00453 
<a name="l00454"></a>00454 <span class="keywordtype">void</span> KMFolderIndex::truncateIndex()
<a name="l00455"></a>00455 {
<a name="l00456"></a>00456   <span class="keywordflow">if</span> ( <a class="code" href="classKMFolderIndex.html#51ff8dc0445c9862a5d6cd9645b24dec" title="offset of header of index file">mHeaderOffset</a> )
<a name="l00457"></a>00457     truncate(QFile::encodeName(<a class="code" href="classKMFolderIndex.html#ad6093d7502a422b1d43e9d693d178b2" title="Returns full path to index file.">indexLocation</a>()), <a class="code" href="classKMFolderIndex.html#51ff8dc0445c9862a5d6cd9645b24dec" title="offset of header of index file">mHeaderOffset</a>);
<a name="l00458"></a>00458   <span class="keywordflow">else</span>
<a name="l00459"></a>00459     <span class="comment">// The index file wasn't opened, so we don't know the header offset.</span>
<a name="l00460"></a>00460     <span class="comment">// So let's just create a new empty index.</span>
<a name="l00461"></a>00461     <a class="code" href="classKMFolderIndex.html#4264d53186958a4b70c442133804b933" title="Write index to index-file.">writeIndex</a>( <span class="keyword">true</span> );
<a name="l00462"></a>00462 }
<a name="l00463"></a>00463 
<a name="l00464"></a><a class="code" href="classKMFolderIndex.html#c7344c118320e6167af8fe361be71894">00464</a> <span class="keywordtype">void</span> <a class="code" href="classKMFolderIndex.html#c7344c118320e6167af8fe361be71894" title="Inserts messages into the message dictionary by iterating over the message list.">KMFolderIndex::fillMessageDict</a>()
<a name="l00465"></a>00465 {
<a name="l00466"></a>00466   <a class="code" href="classFolderStorage.html#0ee31167b98ddd956152071f2464a4ed" title="Open folder for access.">open</a>(<span class="stringliteral">"fillDict"</span>);
<a name="l00467"></a>00467   <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> idx = 0; idx &lt; <a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.<a class="code" href="classKMMsgList.html#525672bd338af4916b6b7e2cc534a55b" title="Returns first unused index (index of last message plus one).">high</a>(); idx++)
<a name="l00468"></a>00468     <span class="keywordflow">if</span> ( <a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.at( idx ) )
<a name="l00469"></a>00469       KMMsgDict::mutableInstance()-&gt;<a class="code" href="classKMMsgDict.html#36a874f2a53927460541f0fe3f92ad5d" title="Insert a new message.">insert</a>(0, <a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.at( idx ), idx);
<a name="l00470"></a>00470   <a class="code" href="classFolderStorage.html#b3d1cef1872ef2ffdad9a7aa2bd8cc7c" title="Close folder.">close</a>(<span class="stringliteral">"fillDict"</span>);
<a name="l00471"></a>00471 }
<a name="l00472"></a>00472 
<a name="l00473"></a>00473 
<a name="l00474"></a>00474 KMMsgInfo* KMFolderIndex::setIndexEntry( <span class="keywordtype">int</span> idx, <a class="code" href="classKMMessage.html" title="This is a Mime Message.">KMMessage</a> *msg )
<a name="l00475"></a>00475 {
<a name="l00476"></a>00476   KMMsgInfo *msgInfo = msg-&gt;<a class="code" href="classKMMessage.html#8a991889002061d8b1dae4f5decd1679" title="Get the KMMsgInfo object that was set with setMsgInfo().">msgInfo</a>();
<a name="l00477"></a>00477   <span class="keywordflow">if</span> ( !msgInfo )
<a name="l00478"></a>00478     msgInfo = <span class="keyword">new</span> KMMsgInfo( folder() );
<a name="l00479"></a>00479 
<a name="l00480"></a>00480   *msgInfo = *msg;
<a name="l00481"></a>00481   <a class="code" href="classKMFolderIndex.html#fd20c0ebb809798887805ba1d93943fe" title="list of index entries or messages">mMsgList</a>.<a class="code" href="classKMMsgList.html#f5405c990b4536a8258aeb5ccde4e2af" title="Set message at given index.">set</a>( idx, msgInfo );
<a name="l00482"></a>00482   msg-&gt;<a class="code" href="classKMMessage.html#eac0f2532de12814bdc6f528745fee5f" title="Set the KMMsgInfo object corresponding to this message.">setMsgInfo</a>( 0 );
<a name="l00483"></a>00483   <span class="keyword">delete</span> msg;
<a name="l00484"></a>00484   <span class="keywordflow">return</span> msgInfo;
<a name="l00485"></a>00485 }
<a name="l00486"></a>00486 
<a name="l00487"></a>00487 <span class="keywordtype">void</span> KMFolderIndex::recreateIndex()
<a name="l00488"></a>00488 {
<a name="l00489"></a>00489   kapp-&gt;setOverrideCursor(KCursor::arrowCursor());
<a name="l00490"></a>00490   KMessageBox::error(0,
<a name="l00491"></a>00491        i18n(<span class="stringliteral">"The mail index for '%1' is corrupted and will be regenerated now, "</span>
<a name="l00492"></a>00492             <span class="stringliteral">"but some information, including status flags, will be lost."</span>).arg(name()));
<a name="l00493"></a>00493   kapp-&gt;restoreOverrideCursor();
<a name="l00494"></a>00494   <a class="code" href="classKMFolderIndex.html#be97237cf5343fb1a3cd9788bad67bc6" title="Create index file from messages file and fill the message-info list mMsgList.">createIndexFromContents</a>();
<a name="l00495"></a>00495   <a class="code" href="classKMFolderIndex.html#b00aa3b371fc4f76fdc76e70b938bec3" title="Read index file and fill the message-info list mMsgList.">readIndex</a>();
<a name="l00496"></a>00496 }
<a name="l00497"></a>00497 
<a name="l00498"></a>00498 
<a name="l00499"></a>00499 <span class="preprocessor">#include "kmfolderindex.moc"</span>
</pre></div></div>
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