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<div class="title">klibloader.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This file is part of the KDE libraries</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (C) 1999 Torben Weis <weis@kde.org></span>
<a name="l00003"></a>00003 <span class="comment"> Copyright (C) 2000 Michael Matz <matz@kde.org></span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment"> modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment"> License version 2 as published by the Free Software Foundation.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment"> but 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"> Library 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 Library General Public License</span>
<a name="l00015"></a>00015 <span class="comment"> along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00016"></a>00016 <span class="comment"> the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00017"></a>00017 <span class="comment"> Boston, MA 02110-1301, USA.</span>
<a name="l00018"></a>00018 <span class="comment">*/</span>
<a name="l00019"></a>00019 <span class="preprocessor">#include "config.h"</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="preprocessor">#include <config.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <qclipboard.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <qfile.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <qdir.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <qtimer.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <qobjectdict.h></span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#include "kapplication.h"</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "klibloader.h"</span>
<a name="l00030"></a>00030 <span class="preprocessor">#include "kstandarddirs.h"</span>
<a name="l00031"></a>00031 <span class="preprocessor">#include "kdebug.h"</span>
<a name="l00032"></a>00032 <span class="preprocessor">#include "<a class="code" href="klocale_8h.html">klocale.h</a>"</span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="preprocessor">#include "ltdl.h"</span>
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keyword">template</span> <span class="keyword">class </span><a class="codeRef" href="qasciidict.html">QAsciiDict<KLibrary></a>;
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="preprocessor">#include <stdlib.h></span> <span class="comment">//getenv</span>
<a name="l00039"></a>00039
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="preprocessor">#if HAVE_DLFCN_H</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor"># include <dlfcn.h></span>
<a name="l00043"></a>00043 <span class="preprocessor">#endif</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span>
<a name="l00045"></a>00045 <span class="preprocessor">#ifdef RTLD_GLOBAL</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span><span class="preprocessor"># define LT_GLOBAL RTLD_GLOBAL</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor"># ifdef DL_GLOBAL</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="preprocessor"># define LT_GLOBAL DL_GLOBAL</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor"># endif</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* !RTLD_GLOBAL */</span>
<a name="l00052"></a>00052 <span class="preprocessor">#ifndef LT_GLOBAL</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="preprocessor"># define LT_GLOBAL 0</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* !LT_GLOBAL */</span>
<a name="l00055"></a>00055
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keyword">class </span>KLibLoaderPrivate
<a name="l00058"></a>00058 {
<a name="l00059"></a>00059 <span class="keyword">public</span>:
<a name="l00060"></a>00060 <a class="codeRef" href="qptrlist.html">QPtrList<KLibWrapPrivate></a> loaded_stack;
<a name="l00061"></a>00061 <a class="codeRef" href="qptrlist.html">QPtrList<KLibWrapPrivate></a> pending_close;
<a name="l00062"></a>00062 <span class="keyword">enum</span> {UNKNOWN, UNLOAD, DONT_UNLOAD} unload_mode;
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <a class="codeRef" href="qstring.html">QString</a> errorMessage;
<a name="l00065"></a>00065 };
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <a class="code" href="classKLibLoader.html" title="The KLibLoader allows you to load libraries dynamically at runtime.">KLibLoader</a>* KLibLoader::s_self = 0;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="comment">// -------------------------------------------------------------------------</span>
<a name="l00070"></a>00070
<a name="l00071"></a><a class="code" href="classKLibFactory.html#adb34bfe4ce73e0c67e4c7cd972bbefef">00071</a> <a class="code" href="classKLibFactory.html#adb34bfe4ce73e0c67e4c7cd972bbefef" title="Create a new factory.">KLibFactory::KLibFactory</a>( <a class="codeRef" href="qobject.html">QObject</a>* parent, <span class="keyword">const</span> <span class="keywordtype">char</span>* name )
<a name="l00072"></a>00072 : <a class="codeRef" href="qobject.html">QObject</a>( parent, name )
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075
<a name="l00076"></a>00076 KLibFactory::~KLibFactory()
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 <span class="comment">// kdDebug(150) << "Deleting KLibFactory " << this << endl;</span>
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080
<a name="l00081"></a><a class="code" href="classKLibFactory.html#a3d3f910b320a4620ab92d3ceb582dddc">00081</a> <a class="codeRef" href="qobject.html">QObject</a>* <a class="code" href="classKLibFactory.html#a3d3f910b320a4620ab92d3ceb582dddc" title="Creates a new object.">KLibFactory::create</a>( <a class="codeRef" href="qobject.html">QObject</a>* parent, <span class="keyword">const</span> <span class="keywordtype">char</span>* name, <span class="keyword">const</span> <span class="keywordtype">char</span>* classname, <span class="keyword">const</span> <a class="codeRef" href="qstringlist.html">QStringList</a> &args )
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 <a class="codeRef" href="qobject.html">QObject</a>* obj = <a class="code" href="classKLibFactory.html#aeb8bccd06496c228ed42f4f24292353e" title="Creates a new object.">createObject</a>( parent, name, classname, args );
<a name="l00084"></a>00084 <span class="keywordflow">if</span> ( obj )
<a name="l00085"></a>00085 emit <a class="code" href="classKLibFactory.html#a9480dca6144650d945f8c0eb957f0796" title="Emitted in create.">objectCreated</a>( obj );
<a name="l00086"></a>00086 <span class="keywordflow">return</span> obj;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a>00089
<a name="l00090"></a><a class="code" href="classKLibFactory.html#aeb8bccd06496c228ed42f4f24292353e">00090</a> <a class="codeRef" href="qobject.html">QObject</a>* <a class="code" href="classKLibFactory.html#aeb8bccd06496c228ed42f4f24292353e" title="Creates a new object.">KLibFactory::createObject</a>( <a class="codeRef" href="qobject.html">QObject</a>*, <span class="keyword">const</span> <span class="keywordtype">char</span>*, <span class="keyword">const</span> <span class="keywordtype">char</span>*, <span class="keyword">const</span> <a class="codeRef" href="qstringlist.html">QStringList</a> &)
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <span class="keywordflow">return</span> 0;
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="comment">// -----------------------------------------------</span>
<a name="l00097"></a>00097
<a name="l00098"></a><a class="code" href="classKLibrary.html#ac71bfaede6e668d69f66743a4535af4a">00098</a> <a class="code" href="classKLibrary.html#ac71bfaede6e668d69f66743a4535af4a" title="Don't create KLibrary objects on your own.">KLibrary::KLibrary</a>( <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& libname, <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& filename, <span class="keywordtype">void</span> * handle )
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 <span class="comment">/* Make sure, we have a KLibLoader */</span>
<a name="l00101"></a>00101 (void) <a class="code" href="classKLibLoader.html#a028f8b1505a74e2f907ee88154a83152" title="Returns a pointer to the factory.">KLibLoader::self</a>();
<a name="l00102"></a>00102 m_libname = libname;
<a name="l00103"></a>00103 m_filename = filename;
<a name="l00104"></a>00104 m_handle = handle;
<a name="l00105"></a>00105 m_factory = 0;
<a name="l00106"></a>00106 m_timer = 0;
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108
<a name="l00109"></a>00109 KLibrary::~KLibrary()
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <span class="comment">// kdDebug(150) << "Deleting KLibrary " << this << " " << m_libname << endl;</span>
<a name="l00112"></a>00112 <span class="keywordflow">if</span> ( m_timer && m_timer-><a class="codeRef" href="qtimer.html#isActive">isActive</a>() )
<a name="l00113"></a>00113 m_timer-><a class="codeRef" href="qtimer.html#stop">stop</a>();
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">// If any object is remaining, delete</span>
<a name="l00116"></a>00116 <span class="keywordflow">if</span> ( m_objs.<a class="codeRef" href="qptrlist.html#count">count</a>() > 0 )
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118 <a class="codeRef" href="qptrlistiterator.html">QPtrListIterator<QObject></a> it( m_objs );
<a name="l00119"></a>00119 <span class="keywordflow">for</span> ( ; it.current() ; ++it )
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121 kdDebug(150) << <span class="stringliteral">"Factory still has object "</span> << it.current() << <span class="stringliteral">" "</span> << it.current()->name () << <span class="stringliteral">" Library = "</span> << m_libname << <a class="code" href="group__kdebug.html#ga313d520ed8f8f6b46eeef22cfb3b082a" title="Does nothing.">endl</a>;
<a name="l00122"></a>00122 <a class="codeRef" href="qobject.html#disconnect">disconnect</a>( it.current(), SIGNAL( <a class="codeRef" href="qobject.html#destroyed">destroyed</a>() ),
<a name="l00123"></a>00123 <span class="keyword">this</span>, SLOT( slotObjectDestroyed() ) );
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 m_objs.<a class="codeRef" href="qptrlist.html#setAutoDelete">setAutoDelete</a>(<span class="keyword">true</span>);
<a name="l00126"></a>00126 m_objs.<a class="codeRef" href="qptrlist.html#clear">clear</a>();
<a name="l00127"></a>00127 }
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <span class="keywordflow">if</span> ( m_factory ) {
<a name="l00130"></a>00130 <span class="comment">// kdDebug(150) << " ... deleting the factory " << m_factory << endl;</span>
<a name="l00131"></a>00131 <span class="keyword">delete</span> m_factory;
<a name="l00132"></a>00132 m_factory = 0L;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134 }
<a name="l00135"></a>00135
<a name="l00136"></a><a class="code" href="classKLibrary.html#ac7ef357c3eafa267ff1472fd5d36f551">00136</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="classKLibrary.html#ac7ef357c3eafa267ff1472fd5d36f551" title="Returns the name of the library.">KLibrary::name</a>()<span class="keyword"> const</span>
<a name="l00137"></a>00137 <span class="keyword"></span>{
<a name="l00138"></a>00138 <span class="keywordflow">return</span> m_libname;
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140
<a name="l00141"></a><a class="code" href="classKLibrary.html#a847ed711a6ff87dbb0d596efef52a842">00141</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="classKLibrary.html#a847ed711a6ff87dbb0d596efef52a842" title="Returns the file name of the library.">KLibrary::fileName</a>()<span class="keyword"> const</span>
<a name="l00142"></a>00142 <span class="keyword"></span>{
<a name="l00143"></a>00143 <span class="keywordflow">return</span> m_filename;
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145
<a name="l00146"></a><a class="code" href="classKLibrary.html#ac2ad38dcfb45e5af6b0714bdfdc3719a">00146</a> <a class="code" href="classKLibFactory.html" title="If you develop a library that is to be loaded dynamically at runtime, then you should return a pointe...">KLibFactory</a>* <a class="code" href="classKLibrary.html#ac2ad38dcfb45e5af6b0714bdfdc3719a" title="Returns the factory of the library.">KLibrary::factory</a>()
<a name="l00147"></a>00147 {
<a name="l00148"></a>00148 <span class="keywordflow">if</span> ( m_factory )
<a name="l00149"></a>00149 <span class="keywordflow">return</span> m_factory;
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <a class="codeRef" href="qcstring.html">QCString</a> symname;
<a name="l00152"></a>00152 symname.<a class="codeRef" href="qcstring.html#sprintf">sprintf</a>(<span class="stringliteral">"init_%s"</span>, <a class="code" href="classKLibrary.html#ac7ef357c3eafa267ff1472fd5d36f551" title="Returns the name of the library.">name</a>().latin1() );
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="keywordtype">void</span>* sym = <a class="code" href="classKLibrary.html#a3386213ba407c396fca414baf9e87de0" title="Looks up a symbol from the library.">symbol</a>( symname );
<a name="l00155"></a>00155 <span class="keywordflow">if</span> ( !sym )
<a name="l00156"></a>00156 {
<a name="l00157"></a>00157 <a class="code" href="classKLibLoader.html#a028f8b1505a74e2f907ee88154a83152" title="Returns a pointer to the factory.">KLibLoader::self</a>()->d->errorMessage = i18n( <span class="stringliteral">"The library %1 does not offer an %2 function."</span> ).<a class="codeRef" href="qstring.html#arg">arg</a>( <a class="code" href="classKLibrary.html#ac7ef357c3eafa267ff1472fd5d36f551" title="Returns the name of the library.">name</a>(), <span class="stringliteral">"init_"</span> + <a class="code" href="classKLibrary.html#ac7ef357c3eafa267ff1472fd5d36f551" title="Returns the name of the library.">name</a>() );
<a name="l00158"></a>00158 kdWarning(150) << <a class="code" href="classKLibLoader.html#a028f8b1505a74e2f907ee88154a83152" title="Returns a pointer to the factory.">KLibLoader::self</a>()->d->errorMessage << <a class="code" href="group__kdebug.html#ga313d520ed8f8f6b46eeef22cfb3b082a" title="Does nothing.">endl</a>;
<a name="l00159"></a>00159 <span class="keywordflow">return</span> 0;
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <span class="keyword">typedef</span> <a class="code" href="classKLibFactory.html" title="If you develop a library that is to be loaded dynamically at runtime, then you should return a pointe...">KLibFactory</a>* (*t_func)();
<a name="l00163"></a>00163 t_func func = (t_func)sym;
<a name="l00164"></a>00164 m_factory = func();
<a name="l00165"></a>00165
<a name="l00166"></a>00166 <span class="keywordflow">if</span>( !m_factory )
<a name="l00167"></a>00167 {
<a name="l00168"></a>00168 <a class="code" href="classKLibLoader.html#a028f8b1505a74e2f907ee88154a83152" title="Returns a pointer to the factory.">KLibLoader::self</a>()->d->errorMessage = i18n( <span class="stringliteral">"The library %1 does not offer a KDE compatible factory."</span> ).<a class="codeRef" href="qstring.html#arg">arg</a>( <a class="code" href="classKLibrary.html#ac7ef357c3eafa267ff1472fd5d36f551" title="Returns the name of the library.">name</a>() );
<a name="l00169"></a>00169 kdWarning(150) << <a class="code" href="classKLibLoader.html#a028f8b1505a74e2f907ee88154a83152" title="Returns a pointer to the factory.">KLibLoader::self</a>()->d->errorMessage << <a class="code" href="group__kdebug.html#ga313d520ed8f8f6b46eeef22cfb3b082a" title="Does nothing.">endl</a>;
<a name="l00170"></a>00170 <span class="keywordflow">return</span> 0;
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <a class="codeRef" href="qobject.html#connect">connect</a>( m_factory, SIGNAL( objectCreated( <a class="codeRef" href="qobject.html">QObject</a> * ) ),
<a name="l00174"></a>00174 <span class="keyword">this</span>, SLOT( slotObjectCreated( <a class="codeRef" href="qobject.html">QObject</a> * ) ) );
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="keywordflow">return</span> m_factory;
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a><a class="code" href="classKLibrary.html#a3386213ba407c396fca414baf9e87de0">00179</a> <span class="keywordtype">void</span>* <a class="code" href="classKLibrary.html#a3386213ba407c396fca414baf9e87de0" title="Looks up a symbol from the library.">KLibrary::symbol</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* symname )<span class="keyword"> const</span>
<a name="l00180"></a>00180 <span class="keyword"></span>{
<a name="l00181"></a>00181 <span class="keywordtype">void</span>* sym = lt_dlsym( (lt_dlhandle) m_handle, symname );
<a name="l00182"></a>00182 <span class="keywordflow">if</span> ( !sym )
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 <a class="code" href="classKLibLoader.html#a028f8b1505a74e2f907ee88154a83152" title="Returns a pointer to the factory.">KLibLoader::self</a>()->d->errorMessage = <span class="stringliteral">"KLibrary: "</span> + <a class="codeRef" href="qstring.html#fromLocal8Bit">QString::fromLocal8Bit</a>( lt_dlerror() );
<a name="l00185"></a>00185 kdWarning(150) << <a class="code" href="classKLibLoader.html#a028f8b1505a74e2f907ee88154a83152" title="Returns a pointer to the factory.">KLibLoader::self</a>()->d->errorMessage << <a class="code" href="group__kdebug.html#ga313d520ed8f8f6b46eeef22cfb3b082a" title="Does nothing.">endl</a>;
<a name="l00186"></a>00186 <span class="keywordflow">return</span> 0;
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <span class="keywordflow">return</span> sym;
<a name="l00190"></a>00190 }
<a name="l00191"></a>00191
<a name="l00192"></a><a class="code" href="classKLibrary.html#a40decb5ce224acc6c1a4035a32972a97">00192</a> <span class="keywordtype">bool</span> <a class="code" href="classKLibrary.html#a40decb5ce224acc6c1a4035a32972a97" title="Looks up a symbol from the library.">KLibrary::hasSymbol</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* symname )<span class="keyword"> const</span>
<a name="l00193"></a>00193 <span class="keyword"></span>{
<a name="l00194"></a>00194 <span class="keywordtype">void</span>* sym = lt_dlsym( (lt_dlhandle) m_handle, symname );
<a name="l00195"></a>00195 <span class="keywordflow">return</span> (sym != 0L );
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197
<a name="l00198"></a><a class="code" href="classKLibrary.html#aab3b0967728a11c6c5f87f2eabf941fd">00198</a> <span class="keywordtype">void</span> <a class="code" href="classKLibrary.html#aab3b0967728a11c6c5f87f2eabf941fd" title="Unloads the library.">KLibrary::unload</a>()<span class="keyword"> const</span>
<a name="l00199"></a>00199 <span class="keyword"></span>{
<a name="l00200"></a>00200 <span class="keywordflow">if</span> (KLibLoader::s_self)
<a name="l00201"></a>00201 KLibLoader::s_self-><a class="code" href="classKLibLoader.html#a980c61f5a7330154e17453a62373d8de" title="Unloads the library with the given name.">unloadLibrary</a>(<a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>(<a class="code" href="classKLibrary.html#ac7ef357c3eafa267ff1472fd5d36f551" title="Returns the name of the library.">name</a>()));
<a name="l00202"></a>00202 }
<a name="l00203"></a>00203
<a name="l00204"></a>00204 <span class="keywordtype">void</span> KLibrary::slotObjectCreated( <a class="codeRef" href="qobject.html">QObject</a> *obj )
<a name="l00205"></a>00205 {
<a name="l00206"></a>00206 <span class="keywordflow">if</span> ( !obj )
<a name="l00207"></a>00207 <span class="keywordflow">return</span>;
<a name="l00208"></a>00208
<a name="l00209"></a>00209 <span class="keywordflow">if</span> ( m_timer && m_timer-><a class="codeRef" href="qtimer.html#isActive">isActive</a>() )
<a name="l00210"></a>00210 m_timer-><a class="codeRef" href="qtimer.html#stop">stop</a>();
<a name="l00211"></a>00211
<a name="l00212"></a>00212 <span class="keywordflow">if</span> ( m_objs.<a class="codeRef" href="qptrlist.html#containsRef">containsRef</a>( obj ) )
<a name="l00213"></a>00213 <span class="keywordflow">return</span>; <span class="comment">// we know this object already</span>
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <a class="codeRef" href="qobject.html#connect">connect</a>( obj, SIGNAL( <a class="codeRef" href="qobject.html#destroyed">destroyed</a>() ),
<a name="l00216"></a>00216 <span class="keyword">this</span>, SLOT( slotObjectDestroyed() ) );
<a name="l00217"></a>00217
<a name="l00218"></a>00218 m_objs.<a class="codeRef" href="qptrlist.html#append">append</a>( obj );
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220
<a name="l00221"></a>00221 <span class="keywordtype">void</span> KLibrary::slotObjectDestroyed()
<a name="l00222"></a>00222 {
<a name="l00223"></a>00223 m_objs.<a class="codeRef" href="qptrlist.html#removeRef">removeRef</a>( <a class="codeRef" href="qobject.html#sender">sender</a>() );
<a name="l00224"></a>00224
<a name="l00225"></a>00225 <span class="keywordflow">if</span> ( m_objs.<a class="codeRef" href="qptrlist.html#count">count</a>() == 0 )
<a name="l00226"></a>00226 {
<a name="l00227"></a>00227 <span class="comment">// kdDebug(150) << "KLibrary: shutdown timer for " << name() << " started!"</span>
<a name="l00228"></a>00228 <span class="comment">// << endl;</span>
<a name="l00229"></a>00229
<a name="l00230"></a>00230 <span class="keywordflow">if</span> ( !m_timer )
<a name="l00231"></a>00231 {
<a name="l00232"></a>00232 m_timer = <span class="keyword">new</span> <a class="codeRef" href="qtimer.html">QTimer</a>( <span class="keyword">this</span>, <span class="stringliteral">"klibrary_shutdown_timer"</span> );
<a name="l00233"></a>00233 <a class="codeRef" href="qobject.html#connect">connect</a>( m_timer, SIGNAL( timeout() ),
<a name="l00234"></a>00234 <span class="keyword">this</span>, SLOT( slotTimeout() ) );
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236
<a name="l00237"></a>00237 <span class="comment">// as long as it's not stable make the timeout short, for debugging</span>
<a name="l00238"></a>00238 <span class="comment">// pleasure (matz)</span>
<a name="l00239"></a>00239 <span class="comment">//m_timer->start( 1000*60, true );</span>
<a name="l00240"></a>00240 m_timer-><a class="codeRef" href="qtimer.html#start">start</a>( 1000*10, <span class="keyword">true</span> );
<a name="l00241"></a>00241 }
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordtype">void</span> KLibrary::slotTimeout()
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 <span class="keywordflow">if</span> ( m_objs.<a class="codeRef" href="qptrlist.html#count">count</a>() != 0 )
<a name="l00247"></a>00247 <span class="keywordflow">return</span>;
<a name="l00248"></a>00248
<a name="l00249"></a>00249 <span class="comment">/* Don't go through KLibLoader::unloadLibrary(), because that uses the</span>
<a name="l00250"></a>00250 <span class="comment"> ref counter, but this timeout means to unconditionally close this library</span>
<a name="l00251"></a>00251 <span class="comment"> The destroyed() signal will take care to remove us from all lists.</span>
<a name="l00252"></a>00252 <span class="comment"> */</span>
<a name="l00253"></a>00253 <span class="keyword">delete</span> <span class="keyword">this</span>;
<a name="l00254"></a>00254 }
<a name="l00255"></a>00255
<a name="l00256"></a>00256 <span class="comment">// -------------------------------------------------</span>
<a name="l00257"></a>00257
<a name="l00258"></a>00258 <span class="comment">/* This helper class is needed, because KLibraries can go away without</span>
<a name="l00259"></a>00259 <span class="comment"> being unloaded. So we need some info about KLibraries even after its</span>
<a name="l00260"></a>00260 <span class="comment"> death. */</span>
<a name="l00261"></a>00261 <span class="keyword">class </span>KLibWrapPrivate
<a name="l00262"></a>00262 {
<a name="l00263"></a>00263 <span class="keyword">public</span>:
<a name="l00264"></a>00264 KLibWrapPrivate(<a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a> *l, lt_dlhandle h);
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a> *lib;
<a name="l00267"></a>00267 <span class="keyword">enum</span> {UNKNOWN, UNLOAD, DONT_UNLOAD} unload_mode;
<a name="l00268"></a>00268 <span class="keywordtype">int</span> ref_count;
<a name="l00269"></a>00269 lt_dlhandle handle;
<a name="l00270"></a>00270 <a class="codeRef" href="qstring.html">QString</a> <a class="codeRef" doxygen="kdeui.tag:../../kdeui/html/" href="../../kdeui/html/namespaceKStdAction.html#afeceea2c9f84c16ec7b6771f36190b90">name</a>;
<a name="l00271"></a>00271 <a class="codeRef" href="qstring.html">QString</a> filename;
<a name="l00272"></a>00272 };
<a name="l00273"></a>00273
<a name="l00274"></a>00274 KLibWrapPrivate::KLibWrapPrivate(<a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a> *l, lt_dlhandle h)
<a name="l00275"></a>00275 : lib(l), ref_count(1), handle(h), <a class="codeRef" doxygen="kdeui.tag:../../kdeui/html/" href="../../kdeui/html/namespaceKStdAction.html#afeceea2c9f84c16ec7b6771f36190b90">name</a>(l-><a class="codeRef" doxygen="kdeui.tag:../../kdeui/html/" href="../../kdeui/html/namespaceKStdAction.html#afeceea2c9f84c16ec7b6771f36190b90">name</a>()), filename(l->fileName())
<a name="l00276"></a>00276 {
<a name="l00277"></a>00277 unload_mode = UNKNOWN;
<a name="l00278"></a>00278 <span class="keywordflow">if</span> (lt_dlsym(handle, <span class="stringliteral">"__kde_do_not_unload"</span>) != 0) {
<a name="l00279"></a>00279 <span class="comment">// kdDebug(150) << "Will not unload " << name << endl;</span>
<a name="l00280"></a>00280 unload_mode = DONT_UNLOAD;
<a name="l00281"></a>00281 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (lt_dlsym(handle, <span class="stringliteral">"__kde_do_unload"</span>) != 0) {
<a name="l00282"></a>00282 unload_mode = UNLOAD;
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285
<a name="l00286"></a><a class="code" href="classKLibLoader.html#a028f8b1505a74e2f907ee88154a83152">00286</a> <a class="code" href="classKLibLoader.html" title="The KLibLoader allows you to load libraries dynamically at runtime.">KLibLoader</a>* <a class="code" href="classKLibLoader.html#a028f8b1505a74e2f907ee88154a83152" title="Returns a pointer to the factory.">KLibLoader::self</a>()
<a name="l00287"></a>00287 {
<a name="l00288"></a>00288 <span class="keywordflow">if</span> ( !s_self )
<a name="l00289"></a>00289 s_self = <span class="keyword">new</span> <a class="code" href="classKLibLoader.html" title="The KLibLoader allows you to load libraries dynamically at runtime.">KLibLoader</a>;
<a name="l00290"></a>00290 <span class="keywordflow">return</span> s_self;
<a name="l00291"></a>00291 }
<a name="l00292"></a>00292
<a name="l00293"></a>00293 <span class="keywordtype">void</span> KLibLoader::cleanUp()
<a name="l00294"></a>00294 {
<a name="l00295"></a>00295 <span class="keywordflow">if</span> ( !s_self )
<a name="l00296"></a>00296 <span class="keywordflow">return</span>;
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="keyword">delete</span> s_self;
<a name="l00299"></a>00299 s_self = 0L;
<a name="l00300"></a>00300 }
<a name="l00301"></a>00301
<a name="l00302"></a>00302 KLibLoader::KLibLoader( <a class="codeRef" href="qobject.html">QObject</a>* parent, <span class="keyword">const</span> <span class="keywordtype">char</span>* name )
<a name="l00303"></a>00303 : <a class="codeRef" href="qobject.html">QObject</a>( parent, name )
<a name="l00304"></a>00304 {
<a name="l00305"></a>00305 s_self = <span class="keyword">this</span>;
<a name="l00306"></a>00306 d = <span class="keyword">new</span> KLibLoaderPrivate;
<a name="l00307"></a>00307 lt_dlinit();
<a name="l00308"></a>00308 d->unload_mode = KLibLoaderPrivate::UNKNOWN;
<a name="l00309"></a>00309 <span class="keywordflow">if</span> (getenv(<span class="stringliteral">"KDE_NOUNLOAD"</span>) != 0)
<a name="l00310"></a>00310 d->unload_mode = KLibLoaderPrivate::DONT_UNLOAD;
<a name="l00311"></a>00311 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (getenv(<span class="stringliteral">"KDE_DOUNLOAD"</span>) != 0)
<a name="l00312"></a>00312 d->unload_mode = KLibLoaderPrivate::UNLOAD;
<a name="l00313"></a>00313 d->loaded_stack.setAutoDelete( <span class="keyword">true</span> );
<a name="l00314"></a>00314 }
<a name="l00315"></a>00315
<a name="l00316"></a><a class="code" href="classKLibLoader.html#a5aaedf43563ff9eb487283e80961467d">00316</a> <a class="code" href="classKLibLoader.html#a5aaedf43563ff9eb487283e80961467d" title="You should NEVER destruct an instance of KLibLoader until you know what you are doing.">KLibLoader::~KLibLoader</a>()
<a name="l00317"></a>00317 {
<a name="l00318"></a>00318 <span class="comment">// kdDebug(150) << "Deleting KLibLoader " << this << " " << name() << endl;</span>
<a name="l00319"></a>00319
<a name="l00320"></a>00320 <a class="codeRef" href="qasciidictiterator.html">QAsciiDictIterator<KLibWrapPrivate></a> it( m_libs );
<a name="l00321"></a>00321 <span class="keywordflow">for</span> (; it.<a class="codeRef" href="qasciidictiterator.html#current">current</a>(); ++it )
<a name="l00322"></a>00322 {
<a name="l00323"></a>00323 kdDebug(150) << <span class="stringliteral">"The KLibLoader contains the library "</span> << it.<a class="codeRef" href="qasciidictiterator.html#current">current</a>()->name
<a name="l00324"></a>00324 << <span class="stringliteral">" ("</span> << it.<a class="codeRef" href="qasciidictiterator.html#current">current</a>()->lib << <span class="stringliteral">")"</span> << <a class="code" href="group__kdebug.html#ga313d520ed8f8f6b46eeef22cfb3b082a" title="Does nothing.">endl</a>;
<a name="l00325"></a>00325 d->pending_close.append(it.<a class="codeRef" href="qasciidictiterator.html#current">current</a>());
<a name="l00326"></a>00326 }
<a name="l00327"></a>00327
<a name="l00328"></a>00328 close_pending(0);
<a name="l00329"></a>00329
<a name="l00330"></a>00330 <span class="keyword">delete</span> d;
<a name="l00331"></a>00331 d = 0L;
<a name="l00332"></a>00332 }
<a name="l00333"></a>00333
<a name="l00334"></a>00334 <span class="keyword">static</span> <span class="keyword">inline</span> <a class="codeRef" href="qcstring.html">QCString</a> makeLibName( <span class="keyword">const</span> <span class="keywordtype">char</span>* name )
<a name="l00335"></a>00335 {
<a name="l00336"></a>00336 <a class="codeRef" href="qcstring.html">QCString</a> libname(name);
<a name="l00337"></a>00337 <span class="comment">// only append ".la" if there is no extension</span>
<a name="l00338"></a>00338 <span class="comment">// this allows to load non-libtool libraries as well</span>
<a name="l00339"></a>00339 <span class="comment">// (mhk, 20000228)</span>
<a name="l00340"></a>00340 <span class="keywordtype">int</span> pos = libname.findRev(<span class="charliteral">'/'</span>);
<a name="l00341"></a>00341 <span class="keywordflow">if</span> (pos < 0)
<a name="l00342"></a>00342 pos = 0;
<a name="l00343"></a>00343 <span class="keywordflow">if</span> (libname.find(<span class="charliteral">'.'</span>, pos) < 0)
<a name="l00344"></a>00344 libname += <span class="stringliteral">".la"</span>;
<a name="l00345"></a>00345 <span class="keywordflow">return</span> libname;
<a name="l00346"></a>00346 }
<a name="l00347"></a>00347
<a name="l00348"></a>00348 <span class="comment">//static</span>
<a name="l00349"></a><a class="code" href="classKLibLoader.html#a4c9dae3b88b99d4cffebffbc69e37118">00349</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="classKLibLoader.html#a4c9dae3b88b99d4cffebffbc69e37118" title="Helper method which looks for a library in the standard paths ("module" and "lib" resources)...">KLibLoader::findLibrary</a>( <span class="keyword">const</span> <span class="keywordtype">char</span> * name, <span class="keyword">const</span> <a class="code" href="classKInstance.html" title="Access to KDE global objects for use in shared libraries.">KInstance</a> * instance )
<a name="l00350"></a>00350 {
<a name="l00351"></a>00351 <a class="codeRef" href="qcstring.html">QCString</a> libname = makeLibName( name );
<a name="l00352"></a>00352
<a name="l00353"></a>00353 <span class="comment">// only look up the file if it is not an absolute filename</span>
<a name="l00354"></a>00354 <span class="comment">// (mhk, 20000228)</span>
<a name="l00355"></a>00355 <a class="codeRef" href="qstring.html">QString</a> libfile;
<a name="l00356"></a>00356 <span class="keywordflow">if</span> (!<a class="codeRef" href="qdir.html#isRelativePath">QDir::isRelativePath</a>(libname))
<a name="l00357"></a>00357 libfile = <a class="codeRef" href="qfile.html#decodeName">QFile::decodeName</a>( libname );
<a name="l00358"></a>00358 <span class="keywordflow">else</span>
<a name="l00359"></a>00359 {
<a name="l00360"></a>00360 libfile = instance-><a class="code" href="classKInstance.html#a721bf6eba6b89df5581abfb233edefe6" title="Returns the application standard dirs object.">dirs</a>()-><a class="code" href="classKStandardDirs.html#adae97fe8f8a994938704cfa6b483c70a" title="Tries to find a resource in the following order:">findResource</a>( <span class="stringliteral">"module"</span>, libname );
<a name="l00361"></a>00361 <span class="keywordflow">if</span> ( libfile.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>() )
<a name="l00362"></a>00362 {
<a name="l00363"></a>00363 libfile = instance-><a class="code" href="classKInstance.html#a721bf6eba6b89df5581abfb233edefe6" title="Returns the application standard dirs object.">dirs</a>()-><a class="code" href="classKStandardDirs.html#adae97fe8f8a994938704cfa6b483c70a" title="Tries to find a resource in the following order:">findResource</a>( <span class="stringliteral">"lib"</span>, libname );
<a name="l00364"></a>00364 <span class="preprocessor">#ifndef NDEBUG</span>
<a name="l00365"></a>00365 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( !libfile.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>() && libname.<a class="codeRef" href="qcstring.html#left">left</a>(3) == <span class="stringliteral">"lib"</span> ) <span class="comment">// don't warn for kdeinit modules</span>
<a name="l00366"></a>00366 kdDebug(150) << <span class="stringliteral">"library "</span> << libname << <span class="stringliteral">" not found under 'module' but under 'lib'"</span> << <a class="code" href="group__kdebug.html#ga313d520ed8f8f6b46eeef22cfb3b082a" title="Does nothing.">endl</a>;
<a name="l00367"></a>00367 <span class="preprocessor">#endif</span>
<a name="l00368"></a>00368 <span class="preprocessor"></span> }
<a name="l00369"></a>00369 }
<a name="l00370"></a>00370 <span class="keywordflow">return</span> libfile;
<a name="l00371"></a>00371 }
<a name="l00372"></a>00372
<a name="l00373"></a>00373
<a name="l00374"></a><a class="code" href="classKLibLoader.html#a2d4f1c124326f2b13fc2aa585c0b63cc">00374</a> <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a>* <a class="code" href="classKLibLoader.html#a2d4f1c124326f2b13fc2aa585c0b63cc" title="Loads and initializes a library.">KLibLoader::globalLibrary</a>( <span class="keyword">const</span> <span class="keywordtype">char</span> *name )
<a name="l00375"></a>00375 {
<a name="l00376"></a>00376 <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a> *tmp;
<a name="l00377"></a>00377 <span class="keywordtype">int</span> olt_dlopen_flag = lt_dlopen_flag;
<a name="l00378"></a>00378
<a name="l00379"></a>00379 lt_dlopen_flag |= LT_GLOBAL;
<a name="l00380"></a>00380 kdDebug(150) << <span class="stringliteral">"Loading the next library global with flag "</span>
<a name="l00381"></a>00381 << lt_dlopen_flag
<a name="l00382"></a>00382 << <span class="stringliteral">"."</span> << <a class="code" href="group__kdebug.html#ga313d520ed8f8f6b46eeef22cfb3b082a" title="Does nothing.">endl</a>;
<a name="l00383"></a>00383 tmp = <a class="code" href="classKLibLoader.html#a5a6173b6336cb6eb4624426e9c5daf98" title="Loads and initializes a library.">library</a>(name);
<a name="l00384"></a>00384 lt_dlopen_flag = olt_dlopen_flag;
<a name="l00385"></a>00385
<a name="l00386"></a>00386 <span class="keywordflow">return</span> tmp;
<a name="l00387"></a>00387 }
<a name="l00388"></a>00388
<a name="l00389"></a>00389
<a name="l00390"></a><a class="code" href="classKLibLoader.html#a5a6173b6336cb6eb4624426e9c5daf98">00390</a> <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a>* <a class="code" href="classKLibLoader.html#a5a6173b6336cb6eb4624426e9c5daf98" title="Loads and initializes a library.">KLibLoader::library</a>( <span class="keyword">const</span> <span class="keywordtype">char</span> *name )
<a name="l00391"></a>00391 {
<a name="l00392"></a>00392 <span class="keywordflow">if</span> (!name)
<a name="l00393"></a>00393 <span class="keywordflow">return</span> 0;
<a name="l00394"></a>00394
<a name="l00395"></a>00395 KLibWrapPrivate* wrap = m_libs[<a class="codeRef" href="qobject.html#name">name</a>];
<a name="l00396"></a>00396 <span class="keywordflow">if</span> (wrap) {
<a name="l00397"></a>00397 <span class="comment">/* Nothing to do to load the library. */</span>
<a name="l00398"></a>00398 wrap->ref_count++;
<a name="l00399"></a>00399 <span class="keywordflow">return</span> wrap->lib;
<a name="l00400"></a>00400 }
<a name="l00401"></a>00401
<a name="l00402"></a>00402 <span class="comment">/* Test if this library was loaded at some time, but got</span>
<a name="l00403"></a>00403 <span class="comment"> unloaded meanwhile, whithout being dlclose()'ed. */</span>
<a name="l00404"></a>00404 <a class="codeRef" href="qptrlistiterator.html">QPtrListIterator<KLibWrapPrivate></a> it(d->loaded_stack);
<a name="l00405"></a>00405 <span class="keywordflow">for</span> (; it.<a class="codeRef" href="qptrlistiterator.html#current">current</a>(); ++it) {
<a name="l00406"></a>00406 <span class="keywordflow">if</span> (it.<a class="codeRef" href="qptrlistiterator.html#current">current</a>()->name == <a class="codeRef" href="qobject.html#name">name</a>)
<a name="l00407"></a>00407 wrap = it.<a class="codeRef" href="qptrlistiterator.html#current">current</a>();
<a name="l00408"></a>00408 }
<a name="l00409"></a>00409
<a name="l00410"></a>00410 <span class="keywordflow">if</span> (wrap) {
<a name="l00411"></a>00411 d->pending_close.removeRef(wrap);
<a name="l00412"></a>00412 <span class="keywordflow">if</span> (!wrap->lib) {
<a name="l00413"></a>00413 <span class="comment">/* This lib only was in loaded_stack, but not in m_libs. */</span>
<a name="l00414"></a>00414 wrap->lib = <span class="keyword">new</span> <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a>( name, wrap->filename, wrap->handle );
<a name="l00415"></a>00415 }
<a name="l00416"></a>00416 wrap->ref_count++;
<a name="l00417"></a>00417 } <span class="keywordflow">else</span> {
<a name="l00418"></a>00418 <a class="codeRef" href="qstring.html">QString</a> libfile = <a class="code" href="classKLibLoader.html#a4c9dae3b88b99d4cffebffbc69e37118" title="Helper method which looks for a library in the standard paths ("module" and "lib" resources)...">findLibrary</a>( name );
<a name="l00419"></a>00419 <span class="keywordflow">if</span> ( libfile.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>() )
<a name="l00420"></a>00420 {
<a name="l00421"></a>00421 <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> libname = makeLibName( name );
<a name="l00422"></a>00422 <span class="preprocessor">#ifndef NDEBUG</span>
<a name="l00423"></a>00423 <span class="preprocessor"></span> kdDebug(150) << <span class="stringliteral">"library="</span> << name << <span class="stringliteral">": No file named "</span> << libname << <span class="stringliteral">" found in paths."</span> << <a class="code" href="group__kdebug.html#ga313d520ed8f8f6b46eeef22cfb3b082a" title="Does nothing.">endl</a>;
<a name="l00424"></a>00424 <span class="preprocessor">#endif</span>
<a name="l00425"></a>00425 <span class="preprocessor"></span> d->errorMessage = i18n(<span class="stringliteral">"Library files for \"%1\" not found in paths."</span>).<a class="codeRef" href="qstring.html#arg">arg</a>(libname);
<a name="l00426"></a>00426 <span class="keywordflow">return</span> 0;
<a name="l00427"></a>00427 }
<a name="l00428"></a>00428
<a name="l00429"></a>00429 lt_dlhandle handle = lt_dlopen( <a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>(libfile) );
<a name="l00430"></a>00430 <span class="keywordflow">if</span> ( !handle )
<a name="l00431"></a>00431 {
<a name="l00432"></a>00432 <span class="keyword">const</span> <span class="keywordtype">char</span>* errmsg = lt_dlerror();
<a name="l00433"></a>00433 <span class="keywordflow">if</span>(errmsg)
<a name="l00434"></a>00434 d->errorMessage = <a class="codeRef" href="qstring.html#fromLocal8Bit">QString::fromLocal8Bit</a>(errmsg);
<a name="l00435"></a>00435 <span class="keywordflow">else</span>
<a name="l00436"></a>00436 d->errorMessage = QString::null;
<a name="l00437"></a>00437 <span class="keywordflow">return</span> 0;
<a name="l00438"></a>00438 }
<a name="l00439"></a>00439 <span class="keywordflow">else</span>
<a name="l00440"></a>00440 d->errorMessage = QString::null;
<a name="l00441"></a>00441
<a name="l00442"></a>00442 <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a> *lib = <span class="keyword">new</span> <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a>( name, libfile, handle );
<a name="l00443"></a>00443 wrap = <span class="keyword">new</span> KLibWrapPrivate(lib, handle);
<a name="l00444"></a>00444 d->loaded_stack.prepend(wrap);
<a name="l00445"></a>00445 }
<a name="l00446"></a>00446 m_libs.<a class="codeRef" href="qasciidict.html#insert">insert</a>( name, wrap );
<a name="l00447"></a>00447
<a name="l00448"></a>00448 <a class="codeRef" href="qobject.html#connect">connect</a>( wrap->lib, SIGNAL( <a class="codeRef" href="qobject.html#destroyed">destroyed</a>() ),
<a name="l00449"></a>00449 <span class="keyword">this</span>, SLOT( slotLibraryDestroyed() ) );
<a name="l00450"></a>00450
<a name="l00451"></a>00451 <span class="keywordflow">return</span> wrap->lib;
<a name="l00452"></a>00452 }
<a name="l00453"></a>00453
<a name="l00454"></a><a class="code" href="classKLibLoader.html#a6b463bb7c1412ad12201b72944d4f85d">00454</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="classKLibLoader.html#a6b463bb7c1412ad12201b72944d4f85d" title="Returns an error message that can be useful to debug the problem.">KLibLoader::lastErrorMessage</a>()<span class="keyword"> const</span>
<a name="l00455"></a>00455 <span class="keyword"></span>{
<a name="l00456"></a>00456 <span class="keywordflow">return</span> d->errorMessage;
<a name="l00457"></a>00457 }
<a name="l00458"></a>00458
<a name="l00459"></a><a class="code" href="classKLibLoader.html#a980c61f5a7330154e17453a62373d8de">00459</a> <span class="keywordtype">void</span> <a class="code" href="classKLibLoader.html#a980c61f5a7330154e17453a62373d8de" title="Unloads the library with the given name.">KLibLoader::unloadLibrary</a>( <span class="keyword">const</span> <span class="keywordtype">char</span> *libname )
<a name="l00460"></a>00460 {
<a name="l00461"></a>00461 KLibWrapPrivate *wrap = m_libs[ libname ];
<a name="l00462"></a>00462 <span class="keywordflow">if</span> (!wrap)
<a name="l00463"></a>00463 <span class="keywordflow">return</span>;
<a name="l00464"></a>00464 <span class="keywordflow">if</span> (--wrap->ref_count)
<a name="l00465"></a>00465 <span class="keywordflow">return</span>;
<a name="l00466"></a>00466
<a name="l00467"></a>00467 <span class="comment">// kdDebug(150) << "closing library " << libname << endl;</span>
<a name="l00468"></a>00468
<a name="l00469"></a>00469 m_libs.<a class="codeRef" href="qasciidict.html#remove">remove</a>( libname );
<a name="l00470"></a>00470
<a name="l00471"></a>00471 <a class="codeRef" href="qobject.html#disconnect">disconnect</a>( wrap->lib, SIGNAL( <a class="codeRef" href="qobject.html#destroyed">destroyed</a>() ),
<a name="l00472"></a>00472 <span class="keyword">this</span>, SLOT( slotLibraryDestroyed() ) );
<a name="l00473"></a>00473 close_pending( wrap );
<a name="l00474"></a>00474 }
<a name="l00475"></a>00475
<a name="l00476"></a><a class="code" href="classKLibLoader.html#a8262acfb7e2749cb4356cc4b23921a72">00476</a> <a class="code" href="classKLibFactory.html" title="If you develop a library that is to be loaded dynamically at runtime, then you should return a pointe...">KLibFactory</a>* <a class="code" href="classKLibLoader.html#a8262acfb7e2749cb4356cc4b23921a72" title="Loads and initializes a library.">KLibLoader::factory</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* name )
<a name="l00477"></a>00477 {
<a name="l00478"></a>00478 <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a>* lib = <a class="code" href="classKLibLoader.html#a5a6173b6336cb6eb4624426e9c5daf98" title="Loads and initializes a library.">library</a>( name );
<a name="l00479"></a>00479 <span class="keywordflow">if</span> ( !lib )
<a name="l00480"></a>00480 <span class="keywordflow">return</span> 0;
<a name="l00481"></a>00481
<a name="l00482"></a>00482 <span class="keywordflow">return</span> lib-><a class="code" href="classKLibrary.html#ac2ad38dcfb45e5af6b0714bdfdc3719a" title="Returns the factory of the library.">factory</a>();
<a name="l00483"></a>00483 }
<a name="l00484"></a>00484
<a name="l00485"></a>00485 <span class="keywordtype">void</span> KLibLoader::slotLibraryDestroyed()
<a name="l00486"></a>00486 {
<a name="l00487"></a>00487 <span class="keyword">const</span> <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a> *lib = <span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a> *<span class="keyword">></span>( <a class="codeRef" href="qobject.html#sender">sender</a>() );
<a name="l00488"></a>00488
<a name="l00489"></a>00489 <a class="codeRef" href="qasciidictiterator.html">QAsciiDictIterator<KLibWrapPrivate></a> it( m_libs );
<a name="l00490"></a>00490 <span class="keywordflow">for</span> (; it.current(); ++it )
<a name="l00491"></a>00491 <span class="keywordflow">if</span> ( it.current()->lib == lib )
<a name="l00492"></a>00492 {
<a name="l00493"></a>00493 KLibWrapPrivate *wrap = it.current();
<a name="l00494"></a>00494 wrap->lib = 0; <span class="comment">/* the KLibrary object is already away */</span>
<a name="l00495"></a>00495 m_libs.<a class="codeRef" href="qasciidict.html#remove">remove</a>( it.currentKey() );
<a name="l00496"></a>00496 close_pending( wrap );
<a name="l00497"></a>00497 <span class="keywordflow">return</span>;
<a name="l00498"></a>00498 }
<a name="l00499"></a>00499 }
<a name="l00500"></a>00500
<a name="l00501"></a>00501 <span class="keywordtype">void</span> KLibLoader::close_pending(KLibWrapPrivate *wrap)
<a name="l00502"></a>00502 {
<a name="l00503"></a>00503 <span class="keywordflow">if</span> (wrap && !d->pending_close.containsRef( wrap ))
<a name="l00504"></a>00504 d->pending_close.append( wrap );
<a name="l00505"></a>00505
<a name="l00506"></a>00506 <span class="comment">/* First delete all KLibrary objects in pending_close, but _don't_ unload</span>
<a name="l00507"></a>00507 <span class="comment"> the DSO behind it. */</span>
<a name="l00508"></a>00508 <a class="codeRef" href="qptrlistiterator.html">QPtrListIterator<KLibWrapPrivate></a> it(d->pending_close);
<a name="l00509"></a>00509 <span class="keywordflow">for</span> (; it.current(); ++it) {
<a name="l00510"></a>00510 wrap = it.current();
<a name="l00511"></a>00511 <span class="keywordflow">if</span> (wrap->lib) {
<a name="l00512"></a>00512 <a class="codeRef" href="qobject.html#disconnect">disconnect</a>( wrap->lib, SIGNAL( <a class="codeRef" href="qobject.html#destroyed">destroyed</a>() ),
<a name="l00513"></a>00513 <span class="keyword">this</span>, SLOT( slotLibraryDestroyed() ) );
<a name="l00514"></a>00514 <a class="code" href="classKLibrary.html" title="Represents a dynamically loaded library.">KLibrary</a>* to_delete = wrap->lib;
<a name="l00515"></a>00515 wrap->lib = 0L; <span class="comment">// unset first, because KLibrary dtor can cause</span>
<a name="l00516"></a>00516 <span class="keyword">delete</span> to_delete; <span class="comment">// recursive call to close_pending()</span>
<a name="l00517"></a>00517 }
<a name="l00518"></a>00518 }
<a name="l00519"></a>00519
<a name="l00520"></a>00520 <span class="keywordflow">if</span> (d->unload_mode == KLibLoaderPrivate::DONT_UNLOAD) {
<a name="l00521"></a>00521 d->pending_close.clear();
<a name="l00522"></a>00522 <span class="keywordflow">return</span>;
<a name="l00523"></a>00523 }
<a name="l00524"></a>00524
<a name="l00525"></a>00525 <span class="keywordtype">bool</span> deleted_one = <span class="keyword">false</span>;
<a name="l00526"></a>00526 <span class="keywordflow">while</span> ((wrap = d->loaded_stack.first())) {
<a name="l00527"></a>00527 <span class="comment">/* Let's first see, if we want to try to unload this lib.</span>
<a name="l00528"></a>00528 <span class="comment"> If the env. var KDE_DOUNLOAD is set, we try to unload every lib.</span>
<a name="l00529"></a>00529 <span class="comment"> If not, we look at the lib itself, and unload it only, if it exports</span>
<a name="l00530"></a>00530 <span class="comment"> the symbol __kde_do_unload. */</span>
<a name="l00531"></a>00531 <span class="keywordflow">if</span> (d->unload_mode != KLibLoaderPrivate::UNLOAD
<a name="l00532"></a>00532 && wrap->unload_mode != KLibWrapPrivate::UNLOAD)
<a name="l00533"></a>00533 <span class="keywordflow">break</span>;
<a name="l00534"></a>00534
<a name="l00535"></a>00535 <span class="comment">/* Now ensure, that the libs are only unloaded in the reverse direction</span>
<a name="l00536"></a>00536 <span class="comment"> they were loaded. */</span>
<a name="l00537"></a>00537 <span class="keywordflow">if</span> (!d->pending_close.containsRef( wrap )) {
<a name="l00538"></a>00538 <span class="keywordflow">if</span> (!deleted_one)
<a name="l00539"></a>00539 <span class="comment">/* Only diagnose, if we really haven't deleted anything. */</span>
<a name="l00540"></a>00540 <span class="comment">// kdDebug(150) << "try to dlclose " << wrap->name << ": not yet" << endl;</span>
<a name="l00541"></a>00541 <span class="keywordflow">break</span>;
<a name="l00542"></a>00542 }
<a name="l00543"></a>00543
<a name="l00544"></a>00544 <span class="comment">// kdDebug(150) << "try to dlclose " << wrap->name << ": yes, done." << endl;</span>
<a name="l00545"></a>00545
<a name="l00546"></a>00546 <span class="keywordflow">if</span> ( !deleted_one ) {
<a name="l00547"></a>00547 <span class="comment">/* Only do the hack once in this loop.</span>
<a name="l00548"></a>00548 <span class="comment"> WABA: *HACK*</span>
<a name="l00549"></a>00549 <span class="comment"> We need to make sure to clear the clipboard before unloading a DSO</span>
<a name="l00550"></a>00550 <span class="comment"> because the DSO could have defined an object derived from QMimeSource</span>
<a name="l00551"></a>00551 <span class="comment"> and placed that on the clipboard. */</span>
<a name="l00552"></a>00552 <span class="comment">/*kapp->clipboard()->clear();*/</span>
<a name="l00553"></a>00553
<a name="l00554"></a>00554 <span class="comment">/* Well.. let's do something more subtle... convert the clipboard context</span>
<a name="l00555"></a>00555 <span class="comment"> to text. That should be safe as it only uses objects defined by Qt. */</span>
<a name="l00556"></a>00556 <span class="keywordflow">if</span>( kapp->clipboard()->ownsSelection()) {
<a name="l00557"></a>00557 kapp->clipboard()->setText(
<a name="l00558"></a>00558 kapp->clipboard()->text( QClipboard::Selection ), QClipboard::Selection );
<a name="l00559"></a>00559 }
<a name="l00560"></a>00560 <span class="keywordflow">if</span>( kapp->clipboard()->ownsClipboard()) {
<a name="l00561"></a>00561 kapp->clipboard()->setText(
<a name="l00562"></a>00562 kapp->clipboard()->text( QClipboard::Clipboard ), QClipboard::Clipboard );
<a name="l00563"></a>00563 }
<a name="l00564"></a>00564 }
<a name="l00565"></a>00565
<a name="l00566"></a>00566 deleted_one = <span class="keyword">true</span>;
<a name="l00567"></a>00567 lt_dlclose(wrap->handle);
<a name="l00568"></a>00568 d->pending_close.removeRef(wrap);
<a name="l00569"></a>00569 <span class="comment">/* loaded_stack is AutoDelete, so wrap is freed */</span>
<a name="l00570"></a>00570 d->loaded_stack.remove();
<a name="l00571"></a>00571 }
<a name="l00572"></a>00572 }
<a name="l00573"></a>00573
<a name="l00574"></a>00574 <span class="keywordtype">void</span> KLibLoader::virtual_hook( <span class="keywordtype">int</span>, <span class="keywordtype">void</span>* )
<a name="l00575"></a>00575 { <span class="comment">/*BASE::virtual_hook( id, data );*/</span> }
<a name="l00576"></a>00576
<a name="l00577"></a>00577 <span class="keywordtype">void</span> KLibFactory::virtual_hook( <span class="keywordtype">int</span>, <span class="keywordtype">void</span>* )
<a name="l00578"></a>00578 { <span class="comment">/*BASE::virtual_hook( id, data );*/</span> }
<a name="l00579"></a>00579
<a name="l00580"></a>00580 <span class="preprocessor">#include "klibloader.moc"</span>
</pre></div></div>
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value="classKMimeSourceFactory.html">kmimesourcefactory</option>, <option value="classKMountPoint.html">kmountpoint</option>, <option value="classKMultipleDrag.html">kmultipledrag</option>, <option value="classKNetwork_1_1KActiveSocketBase.html">knetwork::kactivesocketbase</option>, <option value="classKNetwork_1_1KBufferedSocket.html">knetwork::kbufferedsocket</option>, <option value="classKNetwork_1_1KClientSocketBase.html">knetwork::kclientsocketbase</option>, <option value="classKNetwork_1_1KDatagramPacket.html">knetwork::kdatagrampacket</option>, <option value="classKNetwork_1_1KDatagramSocket.html">knetwork::kdatagramsocket</option>, <option value="classKNetwork_1_1KHttpProxySocketDevice.html">knetwork::khttpproxysocketdevice</option>, <option value="classKNetwork_1_1KInetSocketAddress.html">knetwork::kinetsocketaddress</option>, <option value="classKNetwork_1_1KIpAddress.html">knetwork::kipaddress</option>, <option value="classKNetwork_1_1KMulticastSocket.html">knetwork::kmulticastsocket</option>, <option value="classKNetwork_1_1KMulticastSocketImpl.html">knetwork::kmulticastsocketimpl</option>, <option value="classKNetwork_1_1KNetworkInterface.html">knetwork::knetworkinterface</option>, <option value="classKNetwork_1_1KPassiveSocketBase.html">knetwork::kpassivesocketbase</option>, <option value="classKNetwork_1_1KResolver.html">knetwork::kresolver</option>, <option value="classKNetwork_1_1KResolverEntry.html">knetwork::kresolverentry</option>, <option value="classKNetwork_1_1KResolverResults.html">knetwork::kresolverresults</option>, <option value="classKNetwork_1_1KResolverWorkerBase_1_1ResolverLocker.html">knetwork::kresolverworkerbase::resolverlocker</option>, <option value="classKNetwork_1_1KReverseResolver.html">knetwork::kreverseresolver</option>, <option value="classKNetwork_1_1KServerSocket.html">knetwork::kserversocket</option>, <option 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