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authorneodarz <neodarz@neodarz.net>2018-08-11 20:21:34 +0200
committerneodarz <neodarz@neodarz.net>2018-08-11 20:21:34 +0200
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+<hr><h1>async_file_manager.cpp</h1><a href="async__file__manager_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
+00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
+00008 <font class="comment"> *</font>
+00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
+00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
+00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
+00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
+00013 <font class="comment"> * any later version.</font>
+00014 <font class="comment"></font>
+00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
+00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
+00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
+00018 <font class="comment"> * General Public License for more details.</font>
+00019 <font class="comment"></font>
+00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
+00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
+00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
+00023 <font class="comment"> * MA 02111-1307, USA.</font>
+00024 <font class="comment"> */</font>
+00025 <font class="preprocessor">#include "<a class="code" href="stdmisc_8h.html">stdmisc.h</a>"</font>
+00026 <font class="preprocessor">#include "<a class="code" href="file_8h.html">nel/misc/file.h</a>"</font>
+00027 <font class="preprocessor">#include "<a class="code" href="path_8h.html">nel/misc/path.h</a>"</font>
+00028 <font class="preprocessor">#include "<a class="code" href="async__file__manager_8h.html">nel/misc/async_file_manager.h</a>"</font>
+00029
+00030
+00031 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
+00032
+00033 <font class="keyword">namespace </font>NLMISC
+00034 {
+00035
+<a name="l00036"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#r0">00036</a> CAsyncFileManager *CAsyncFileManager::_Singleton = NULL;
+00037
+00038 <font class="comment">// ***************************************************************************</font>
+00039
+<a name="l00040"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#c0">00040</a> CAsyncFileManager::CAsyncFileManager()
+00041 {
+00042 }
+00043
+00044 <font class="comment">// ***************************************************************************</font>
+00045
+<a name="l00046"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#d0">00046</a> CAsyncFileManager &amp;CAsyncFileManager::getInstance()
+00047 {
+00048 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CAsyncFileManager.html#r0">_Singleton</a> == NULL)
+00049 {
+00050 <a class="code" href="classNLMISC_1_1CAsyncFileManager.html#r0">_Singleton</a> = <font class="keyword">new</font> <a class="code" href="classNLMISC_1_1CAsyncFileManager.html#c0">CAsyncFileManager</a>();
+00051 }
+00052 <font class="keywordflow">return</font> *<a class="code" href="classNLMISC_1_1CAsyncFileManager.html#r0">_Singleton</a>;
+00053 }
+00054
+00055 <font class="comment">// ***************************************************************************</font>
+00056
+<a name="l00057"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#d1">00057</a> <font class="keywordtype">void</font> CAsyncFileManager::terminate ()
+00058 {
+00059 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CAsyncFileManager.html#r0">_Singleton</a> != NULL)
+00060 {
+00061 <font class="keyword">delete</font> &amp;<a class="code" href="classNLMISC_1_1CAsyncFileManager.html#d0">getInstance</a>();
+00062 <a class="code" href="classNLMISC_1_1CAsyncFileManager.html#r0">_Singleton</a> = NULL;
+00063 }
+00064 }
+00065
+00066
+<a name="l00067"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#a4">00067</a> <font class="keywordtype">void</font> CAsyncFileManager::addLoadTask(IRunnable *ploadTask)
+00068 {
+00069 <a class="code" href="classNLMISC_1_1CTaskManager.html#a3">addTask</a>(ploadTask);
+00070 }
+00071
+<a name="l00072"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#a5">00072</a> <font class="keywordtype">bool</font> CAsyncFileManager::cancelLoadTask(<font class="keyword">const</font> CAsyncFileManager::ICancelCallback &amp;callback)
+00073 {
+00074 CSynchronized&lt;list&lt;IRunnable *&gt; &gt;::CAccessor acces(&amp;<a class="code" href="classNLMISC_1_1CTaskManager.html#n0">_TaskQueue</a>);
+00075 list&lt;IRunnable*&gt; &amp;rTaskQueue = acces.value ();
+00076 list&lt;IRunnable*&gt;::iterator it = rTaskQueue.begin();
+00077
+00078 <font class="keywordflow">while</font> (it != rTaskQueue.end())
+00079 {
+00080 IRunnable *pR = *it;
+00081
+00082 <font class="comment">// check the task with the cancel callback.</font>
+00083 <font class="keywordflow">if</font> (callback.callback(pR))
+00084 {
+00085 <font class="comment">// Delete the load task</font>
+00086 <font class="keyword">delete</font> pR;
+00087 rTaskQueue.erase (it);
+00088 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00089 }
+00090 ++it;
+00091 }
+00092
+00093 <font class="comment">// If not found, the current running task may be the one we want to cancel. Must wait it.</font>
+00094 <a class="code" href="classNLMISC_1_1CTaskManager.html#b0">waitCurrentTaskToComplete</a> ();
+00095
+00096 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00097 }
+00098
+00099 <font class="comment">// ***************************************************************************</font>
+00100 <font class="comment">/* </font>
+00101 <font class="comment">void CAsyncFileManager::loadMesh(const std::string&amp; meshName, IShape **ppShp, IDriver *pDriver)</font>
+00102 <font class="comment">{</font>
+00103 <font class="comment"> addTask (new CMeshLoad(meshName, ppShp, pDriver));</font>
+00104 <font class="comment">}</font>
+00105 <font class="comment">*/</font>
+00106 <font class="comment">// ***************************************************************************</font>
+00107 <font class="comment">/*</font>
+00108 <font class="comment">bool CAsyncFileManager::cancelLoadMesh(const std::string&amp; sMeshName)</font>
+00109 <font class="comment">{</font>
+00110 <font class="comment"> CSynchronized&lt;list&lt;IRunnable *&gt; &gt;::CAccessor acces(&amp;_TaskQueue);</font>
+00111 <font class="comment"> list&lt;IRunnable*&gt; &amp;rTaskQueue = acces.value ();</font>
+00112 <font class="comment"> list&lt;IRunnable*&gt;::iterator it = rTaskQueue.begin();</font>
+00113 <font class="comment"></font>
+00114 <font class="comment"> while (it != rTaskQueue.end())</font>
+00115 <font class="comment"> {</font>
+00116 <font class="comment"> IRunnable *pR = *it;</font>
+00117 <font class="comment"> CMeshLoad *pML = dynamic_cast&lt;CMeshLoad*&gt;(pR);</font>
+00118 <font class="comment"> if (pML != NULL)</font>
+00119 <font class="comment"> {</font>
+00120 <font class="comment"> if (pML-&gt;MeshName == sMeshName)</font>
+00121 <font class="comment"> {</font>
+00122 <font class="comment"> // Delete mesh load task</font>
+00123 <font class="comment"> delete pML;</font>
+00124 <font class="comment"> rTaskQueue.erase (it);</font>
+00125 <font class="comment"> return true;</font>
+00126 <font class="comment"> }</font>
+00127 <font class="comment"> }</font>
+00128 <font class="comment"> ++it;</font>
+00129 <font class="comment"> }</font>
+00130 <font class="comment"> return false;</font>
+00131 <font class="comment">}</font>
+00132 <font class="comment">*/</font>
+00133 <font class="comment">// ***************************************************************************</font>
+00134 <font class="comment">/* </font>
+00135 <font class="comment">void CAsyncFileManager::loadIG (const std::string&amp; IGName, CInstanceGroup **ppIG)</font>
+00136 <font class="comment">{</font>
+00137 <font class="comment"> addTask (new CIGLoad(IGName, ppIG));</font>
+00138 <font class="comment">}</font>
+00139 <font class="comment"></font>
+00140 <font class="comment">// ***************************************************************************</font>
+00141 <font class="comment"> </font>
+00142 <font class="comment">void CAsyncFileManager::loadIGUser (const std::string&amp; IGName, UInstanceGroup **ppIG)</font>
+00143 <font class="comment">{</font>
+00144 <font class="comment"> addTask (new CIGLoadUser(IGName, ppIG));</font>
+00145 <font class="comment">}</font>
+00146 <font class="comment">*/</font>
+00147 <font class="comment">// ***************************************************************************</font>
+00148
+<a name="l00149"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#a0">00149</a> <font class="keywordtype">void</font> CAsyncFileManager::loadFile (<font class="keyword">const</font> std::string&amp; sFileName, uint8 **ppFile)
+00150 {
+00151 <a class="code" href="classNLMISC_1_1CTaskManager.html#a3">addTask</a> (<font class="keyword">new</font> CFileLoad (sFileName, ppFile));
+00152 }
+00153
+00154 <font class="comment">// ***************************************************************************</font>
+00155
+<a name="l00156"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#a1">00156</a> <font class="keywordtype">void</font> CAsyncFileManager::loadFiles (<font class="keyword">const</font> std::vector&lt;std::string&gt; &amp;vFileNames, <font class="keyword">const</font> std::vector&lt;uint8**&gt; &amp;vPtrs)
+00157 {
+00158 <a class="code" href="classNLMISC_1_1CTaskManager.html#a3">addTask</a> (<font class="keyword">new</font> CMultipleFileLoad (vFileNames, vPtrs));
+00159 }
+00160
+00161 <font class="comment">// ***************************************************************************</font>
+00162
+<a name="l00163"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#a2">00163</a> <font class="keywordtype">void</font> CAsyncFileManager::signal (<font class="keywordtype">bool</font> *pSgn)
+00164 {
+00165 <a class="code" href="classNLMISC_1_1CTaskManager.html#a3">addTask</a> (<font class="keyword">new</font> CSignal (pSgn));
+00166 }
+00167
+00168 <font class="comment">// ***************************************************************************</font>
+00169
+<a name="l00170"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager.html#a3">00170</a> <font class="keywordtype">void</font> CAsyncFileManager::cancelSignal (<font class="keywordtype">bool</font> *pSgn)
+00171 {
+00172 CSynchronized&lt;list&lt;IRunnable *&gt; &gt;::CAccessor acces(&amp;<a class="code" href="classNLMISC_1_1CTaskManager.html#n0">_TaskQueue</a>);
+00173 list&lt;IRunnable*&gt; &amp;rTaskQueue = acces.value ();
+00174 list&lt;IRunnable*&gt;::iterator it = rTaskQueue.begin();
+00175
+00176 <font class="keywordflow">while</font> (it != rTaskQueue.end())
+00177 {
+00178 IRunnable *pR = *it;
+00179 CSignal *pS = dynamic_cast&lt;CSignal*&gt;(pR);
+00180 <font class="keywordflow">if</font> (pS != NULL)
+00181 {
+00182 <font class="keywordflow">if</font> (pS-&gt;Sgn == pSgn)
+00183 {
+00184 <font class="comment">// Delete signal task</font>
+00185 <font class="keyword">delete</font> pS;
+00186 rTaskQueue.erase (it);
+00187 <font class="keywordflow">return</font>;
+00188 }
+00189 }
+00190 ++it;
+00191 }
+00192 }
+00193
+00194 <font class="comment">// ***************************************************************************</font>
+00195 <font class="comment">// FileLoad</font>
+00196 <font class="comment">// ***************************************************************************</font>
+00197
+00198 <font class="comment">// ***************************************************************************</font>
+<a name="l00199"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CFileLoad.html#a0">00199</a> CAsyncFileManager::CFileLoad::CFileLoad (<font class="keyword">const</font> std::string&amp; sFileName, uint8 **ppFile)
+00200 {
+00201 <a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CFileLoad.html#o0">_FileName</a> = sFileName;
+00202 <a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CFileLoad.html#o1">_ppFile</a> = ppFile;
+00203 }
+00204
+00205 <font class="comment">// ***************************************************************************</font>
+<a name="l00206"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CFileLoad.html#a1">00206</a> <font class="keywordtype">void</font> CAsyncFileManager::CFileLoad::run (<font class="keywordtype">void</font>)
+00207 {
+00208 FILE *f = fopen (<a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CFileLoad.html#o0">_FileName</a>.c_str(), <font class="stringliteral">"rb"</font>);
+00209 <font class="keywordflow">if</font> (f != NULL)
+00210 {
+00211 uint8 *ptr;
+00212 fseek (f, 0, SEEK_END);
+00213 <font class="keywordtype">long</font> filesize = ftell (f);
+00214 <a class="code" href="namespaceNLMISC.html#a236">nlSleep</a>(5);
+00215 fseek (f, 0, SEEK_SET);
+00216 ptr = <font class="keyword">new</font> uint8[filesize];
+00217 fread (ptr, filesize, 1, f);
+00218 fclose (f);
+00219
+00220 *<a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CFileLoad.html#o1">_ppFile</a> = ptr;
+00221 }
+00222 <font class="keywordflow">else</font>
+00223 {
+00224 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"Couldn't load '%s'"</font>, <a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CFileLoad.html#o0">_FileName</a>.c_str());
+00225 *<a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CFileLoad.html#o1">_ppFile</a> = (uint8*)-1;
+00226 }
+00227 }
+00228
+00229 <font class="comment">// ***************************************************************************</font>
+00230 <font class="comment">// MultipleFileLoad</font>
+00231 <font class="comment">// ***************************************************************************</font>
+00232
+00233 <font class="comment">// ***************************************************************************</font>
+<a name="l00234"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CMultipleFileLoad.html#a0">00234</a> CAsyncFileManager::CMultipleFileLoad::CMultipleFileLoad (<font class="keyword">const</font> std::vector&lt;std::string&gt; &amp;vFileNames,
+00235 <font class="keyword">const</font> std::vector&lt;uint8**&gt; &amp;vPtrs)
+00236 {
+00237 <a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CMultipleFileLoad.html#o0">_FileNames</a> = vFileNames;
+00238 <a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CMultipleFileLoad.html#o1">_Ptrs</a> = vPtrs;
+00239 }
+00240
+00241 <font class="comment">// ***************************************************************************</font>
+<a name="l00242"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CMultipleFileLoad.html#a1">00242</a> <font class="keywordtype">void</font> CAsyncFileManager::CMultipleFileLoad::run (<font class="keywordtype">void</font>)
+00243 {
+00244 <font class="keywordflow">for</font> (uint32 i = 0; i &lt; <a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CMultipleFileLoad.html#o0">_FileNames</a>.size(); ++i)
+00245 {
+00246 FILE *f = fopen (<a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CMultipleFileLoad.html#o0">_FileNames</a>[i].c_str(), <font class="stringliteral">"rb"</font>);
+00247 <font class="keywordflow">if</font> (f != NULL)
+00248 {
+00249 uint8 *ptr;
+00250 fseek (f, 0, SEEK_END);
+00251 <font class="keywordtype">long</font> filesize = ftell (f);
+00252 <a class="code" href="namespaceNLMISC.html#a236">nlSleep</a>(5);
+00253 fseek (f, 0, SEEK_SET);
+00254 ptr = <font class="keyword">new</font> uint8[filesize];
+00255 fread (ptr, filesize, 1, f);
+00256 fclose (f);
+00257
+00258 *<a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CMultipleFileLoad.html#o1">_Ptrs</a>[i] = ptr;
+00259 }
+00260 <font class="keywordflow">else</font>
+00261 {
+00262 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"Couldn't load '%s'"</font>, <a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CMultipleFileLoad.html#o0">_FileNames</a>[i].c_str());
+00263 *<a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CMultipleFileLoad.html#o1">_Ptrs</a>[i] = (uint8*)-1;
+00264 }
+00265 }
+00266
+00267 }
+00268
+00269 <font class="comment">// ***************************************************************************</font>
+00270 <font class="comment">// Signal</font>
+00271 <font class="comment">// ***************************************************************************</font>
+00272
+00273 <font class="comment">// ***************************************************************************</font>
+<a name="l00274"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CSignal.html#a0">00274</a> CAsyncFileManager::CSignal::CSignal (<font class="keywordtype">bool</font> *pSgn)
+00275 {
+00276 <a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CSignal.html#m0">Sgn</a> = pSgn;
+00277 *<a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CSignal.html#m0">Sgn</a> = <font class="keyword">false</font>;
+00278 }
+00279
+00280 <font class="comment">// ***************************************************************************</font>
+<a name="l00281"></a><a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CSignal.html#a1">00281</a> <font class="keywordtype">void</font> CAsyncFileManager::CSignal::run (<font class="keywordtype">void</font>)
+00282 {
+00283 *<a class="code" href="classNLMISC_1_1CAsyncFileManager_1_1CSignal.html#m0">Sgn</a> = <font class="keyword">true</font>;
+00284 }
+00285
+00286
+00287 } <font class="comment">// NLMISC</font>
+00288
+</pre></div>
+
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