nevrax.org : docs

00001 
+00007 /* Copyright, 2000 Nevrax Ltd.
+00008  *
+00009  * This file is part of NEVRAX NEL.
+00010  * NEVRAX NEL is free software; you can redistribute it and/or modify
+00011  * it under the terms of the GNU General Public License as published by
+00012  * the Free Software Foundation; either version 2, or (at your option)
+00013  * any later version.
+00014 
+00015  * NEVRAX NEL is distributed in the hope that it will be useful, but
+00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
+00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+00018  * General Public License for more details.
+00019 
+00020  * You should have received a copy of the GNU General Public License
+00021  * along with NEVRAX NEL; see the file COPYING. If not, write to the
+00022  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+00023  * MA 02111-1307, USA.
+00024  */
+00025 #ifndef NL_ASYNC_FILE_MANAGER_H
+00026 #define NL_ASYNC_FILE_MANAGER_H
+00027 
+00028 #include "nel/misc/types_nl.h"
+00029 #include "nel/misc/task_manager.h"
+00030 
+00031 
+00032 namespace NLMISC
+00033 {
+00034 
+00041 class CAsyncFileManager : public CTaskManager
+00042 {
+00043 
+00044 public:
+00045 
+00046         static CAsyncFileManager &getInstance (); // Must be called instead of constructing the object
+00047         static void terminate (); // End all tasks and terminate if any tasks
+00048 
+00049         // Do not use these methods with the bigfile manager
+00050         void loadFile (const std::string &fileName, uint8 **pPtr);
+00051         void loadFiles (const std::vector<std::string> &vFileNames, const std::vector<uint8**> &vPtrs);
+00052 
+00053         
+00054         void signal (bool *pSgn); // Signal a end of loading for a group of "mesh or file" added
+00055         void cancelSignal (bool *pSgn);
+00056 
+00065         class ICancelCallback
+00066         {
+00067         public:
+00068                 virtual bool callback(const IRunnable *prunnable) const =0;
+00069         };
+00070 
+00072         void addLoadTask(IRunnable *ploadTask);
+00076         bool cancelLoadTask(const ICancelCallback &cancelCallBack);
+00077         
+00078 private:
+00079 
+00080         CAsyncFileManager (); // Singleton mode -> access it with the getInstance function
+00081 
+00082         static CAsyncFileManager *_Singleton;
+00083 
+00084         // All the tasks
+00085         // -------------
+00086         
+00087         // Load a file
+00088         class CFileLoad : public IRunnable
+00089         {
+00090                 std::string _FileName;
+00091                 uint8 **_ppFile;
+00092         public:
+00093                 CFileLoad (const std::string& sFileName, uint8 **ppFile);
+00094                 void run (void);
+00095         };
+00096 
+00097         // Load multiple files
+00098         class CMultipleFileLoad : public IRunnable
+00099         {
+00100                 std::vector<std::string> _FileNames;
+00101                 std::vector<uint8**> _Ptrs;
+00102         public:
+00103                 CMultipleFileLoad (const std::vector<std::string> &vFileNames, const std::vector<uint8**> &vPtrs);
+00104                 void run (void);
+00105         };
+00106 
+00107         // Signal
+00108         class CSignal  : public IRunnable
+00109         {
+00110         public:
+00111                 bool *Sgn;
+00112         public:
+00113                 CSignal (bool *pSgn);
+00114                 void run (void);
+00115         };
+00116 
+00117 };
+00118 
+00119 
+00120 } // NLMISC
+00121 
+00122 
+00123 #endif // NL_ASYNC_FILE_MANAGER_H
+00124 
+00125 /* End of async_file_manager.h */
+