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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<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 &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> &<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 &callback) +00073 { +00074 CSynchronized<list<IRunnable *> >::CAccessor acces(&<a class="code" href="classNLMISC_1_1CTaskManager.html#n0">_TaskQueue</a>); +00075 list<IRunnable*> &rTaskQueue = acces.value (); +00076 list<IRunnable*>::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& 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& sMeshName)</font> +00109 <font class="comment">{</font> +00110 <font class="comment"> CSynchronized<list<IRunnable *> >::CAccessor acces(&_TaskQueue);</font> +00111 <font class="comment"> list<IRunnable*> &rTaskQueue = acces.value ();</font> +00112 <font class="comment"> list<IRunnable*>::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<CMeshLoad*>(pR);</font> +00118 <font class="comment"> if (pML != NULL)</font> +00119 <font class="comment"> {</font> +00120 <font class="comment"> if (pML->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& 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& 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& 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<std::string> &vFileNames, <font class="keyword">const</font> std::vector<uint8**> &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<list<IRunnable *> >::CAccessor acces(&<a class="code" href="classNLMISC_1_1CTaskManager.html#n0">_TaskQueue</a>); +00173 list<IRunnable*> &rTaskQueue = acces.value (); +00174 list<IRunnable*>::iterator it = rTaskQueue.begin(); +00175 +00176 <font class="keywordflow">while</font> (it != rTaskQueue.end()) +00177 { +00178 IRunnable *pR = *it; +00179 CSignal *pS = dynamic_cast<CSignal*>(pR); +00180 <font class="keywordflow">if</font> (pS != NULL) +00181 { +00182 <font class="keywordflow">if</font> (pS->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& 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<std::string> &vFileNames, +00235 <font class="keyword">const</font> std::vector<uint8**> &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 < <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> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |