Home Conference 2005 Order Boxed Set Product Download VU Training FAQ Press and News Docs and Papers Partner Help Team     register/help User Name: Password: Login	Oerror.cpp Go to the documentation of this file. //Filename : OERR.CPP //Description : Object Error Handling #include <new.h> #include <stdlib.h> #include <stdio.h> #include <stdarg.h> #include <windows.h> #include <OSYS.H> //#include <OBOX.H> #include <OVGA.H> #include <OVGALOCK.H> #include <ALL.H> // class Error is declared here //------------------------------------------------// // // There are several types of errors : // // 1. Internal Errors caused by bugs of the program // 2. Runtime Errors caused by using up of resources (memory) or // unexpected environment errors. (disk error) // //------------------------------------------------// static int new_func_handler(size_t); static void error_quit_game(char *msg); //---------- define static variable ----------// static char error_flag=0; // prevent error message dead loop //------- Begin of function new_func_handler ------------// static int new_func_handler(size_t allocSize) { err.mem(); return 0; } //-------- End of function new_func_handler --------------// //------- Begin of function error_quit_game ------------// static void error_quit_game(char *msg) { //if( vga.is_inited() ) // box.msg( strBuf, 0 ); if( vga_front.dd_buf ) { VgaFrontLock vgaLock; ShowCursor(TRUE); MessageBox(sys.main_hwnd, msg, WIN_TITLE, MB_OK | MB_ICONERROR); ShowCursor(FALSE); } else { ShowCursor(TRUE); MessageBox(sys.main_hwnd, msg, WIN_TITLE, MB_OK | MB_ICONERROR); ShowCursor(FALSE); } sys.deinit_directx(); } //------- End of function error_quit_game ------------// //------- Begin of function Error::Error ------------// Error::Error() { _set_new_handler(new_func_handler); // set_new_handler() is a C++ function // ##### begin Gilbert 26/04/2001 #######// _set_new_mode(1); // malloc also call new_func_handler on error, useful for NO_MEM_CLASS // ##### end Gilbert 26/04/2001 #######// extra_handler = NULL; } //-------- End of function Error::Error --------------// //------- BEGIN OF FUNCTION Error::internal -----------// // // sample error message : // // Exit : Insufficient Memory // File : ODYNARR.CPP // Line : 453 // // Continue ? // // <char*> errMsg - the error message // <char*> fileName - the file name of the CPP function cause error // usually is __FILE__ // <int> lineNum - the line number of program cause error // usually is __LINE__ // void Error::internal(char* errMsg,char* fileName,int lineNum) { if( error_flag ) // prevent error message dead loop return; error_flag=1; //-------------------------------------------------// char strBuf[100]; if( extra_handler ) // all the extra error handler first (*extra_handler)(); if( errMsg ) sprintf(strBuf, "Error : %s\nFile : %s\nLine : %d\n", errMsg,fileName,lineNum ); else sprintf(strBuf, "Error on File : %s\nLine : %d\n",fileName,lineNum ); //-------- display error message -------// OutputDebugString( strBuf ); error_quit_game(strBuf); exit( -2 ); } //--------- END OF FUNCTION Error::internal ----------// //------- BEGIN OF FUNCTION Error::mem -----------// // // There is no memory left to save the screen, so don't use v_pop.ask(), // direct output to screen. // void Error::mem() { if( error_flag ) // prevent error message dead loop return; error_flag=1; //-------------------------------------------------// if( extra_handler ) (*extra_handler)(); char* strBuf = "Insufficient Memory, execution interrupt."; //-------- display error message -------// OutputDebugString( strBuf ); error_quit_game(strBuf); exit( -2 ); } //--------- END OF FUNCTION Error::mem ----------// //------- BEGIN OF FUNCTION Error::msg -----------// // // <char*> formated erorr message with % argument // <....> the argument list // void Error::msg( char *format, ... ) { if( error_flag ) // prevent error message dead loop return; error_flag=1; //-------------------------------------------------// //---- translate the message and the arguments into one message ----// char strBuf[100]; va_list argPtr; // the argument list structure va_start( argPtr, format ); vsprintf( strBuf, format, argPtr ); va_end( argPtr ); //-------- display error message -------// OutputDebugString( strBuf ); error_quit_game(strBuf); error_flag = 0; // this error does not exit program } //--------- END OF FUNCTION Error::msg ----------// //------- BEGIN OF FUNCTION Error::run --------// // // <char*> formated erorr message with % argument // <....> the argument list // void Error::run( char *format, ... ) { if( error_flag ) // prevent error message dead loop return; error_flag=1; //-------------------------------------------------// if( extra_handler ) (*extra_handler)(); //---- translate the message and the arguments into one message ----// char strBuf[100]; va_list argPtr; // the argument list structure va_start( argPtr, format ); vsprintf( strBuf, format, argPtr ); va_end( argPtr ); //-------- display error message -------// OutputDebugString( strBuf ); error_quit_game(strBuf); exit( -2 ); } //---------- END OF FUNCTION Error::run -----------//
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