372 lines
11 KiB
C++
372 lines
11 KiB
C++
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//#pragma title( "Err.cpp - Basic error handling/message/logging" )
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/*
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Copyright (c) 1995-1998, Mission Critical Software, Inc. All rights reserved.
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===============================================================================
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Module - Err.cpp
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System - Common
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Author - Tom Bernhardt, Rich Denham
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Created - 1994-08-22
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Description - Implements the TError class that handles basic exception
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handling, message generation, and logging functions.
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Updates - 1997-09-12 RED replace TTime class
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===============================================================================
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*/
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#ifdef USE_STDAFX
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# include "stdafx.h"
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#else
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# include <windows.h>
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#endif
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#ifndef WIN16_VERSION
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#include <lm.h>
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <io.h>
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#include <string.h>
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#include <stdarg.h>
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#include <share.h>
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#include <time.h>
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#include <rpc.h>
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#include <rpcdce.h>
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#include <sys\types.h>
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#include <sys\stat.h>
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#include "Common.hpp"
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#include "Err.hpp"
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#include "UString.hpp"
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#define TERR_MAX_MSG_LEN (2000)
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#define BYTE_ORDER_MARK (0xFEFF)
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TError::TError(
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int displevel ,// in -mimimum severity level to display
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int loglevel ,// in -mimimum severity level to log
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WCHAR const * filename ,// in -file name of log (NULL if none)
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int logmode ,// in -0=replace, 1=append
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int beeplevel // in -min error level for beeping
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)
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{
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lastError = 0;
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maxError = 0;
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logLevel = loglevel;
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dispLevel = displevel;
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logFile = NULL;
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beepLevel = beeplevel;
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LogOpen(filename, logmode, loglevel);
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}
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TError::~TError()
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{
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LogClose();
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}
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// Closes any existing open logFile and opens a new log file if the fileName is
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// not null. If it is a null string, then a default fileName of "Temp.log" is
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// used.
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BOOL
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TError::LogOpen(
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WCHAR const * fileName ,// in -name of file including any path
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int mode ,// in -0=overwrite, 1=append
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int level // in -minimum level to log
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)
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{
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BOOL retval=TRUE;
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if ( logFile )
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{
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fclose(logFile);
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logFile = NULL;
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}
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if ( fileName && fileName[0] )
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{
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// Check to see if the file already exists
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WIN32_FIND_DATA fDat;
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HANDLE hFind;
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BOOL bExisted = FALSE;
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hFind = FindFirstFile(fileName,&fDat);
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if ( hFind != INVALID_HANDLE_VALUE )
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{
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FindClose(hFind);
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bExisted = TRUE;
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}
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logFile = _wfsopen( fileName, mode == 0 ? L"wb" : L"ab", _SH_DENYNO );
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if ( !logFile )
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{
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MsgWrite( 4101, L"Log Open(%s) failed", fileName );
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retval = FALSE;
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}
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else
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{
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if (! bExisted )
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{
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// this is a new file we've just created
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// we need to write the byte order mark to the beginning of the file
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WCHAR x = BYTE_ORDER_MARK;
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fwprintf(logFile,L"%lc",x);
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}
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}
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}
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logLevel = level;
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return retval;
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}
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//-----------------------------------------------------------------------------
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// Writes formatted message to log file and flushes buffers
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//-----------------------------------------------------------------------------
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void TError::LogWrite(WCHAR const * msg)
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{
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WCHAR sTime[32];
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WCHAR sTemp[TERR_MAX_MSG_LEN];
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// Get rid of the <CR> from the end of the message because it causes things
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// to run together in the logs
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wcscpy(sTemp, msg);
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DWORD dwLen = wcslen(sTemp);
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if ( sTemp[dwLen-1] == 0x0d )
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sTemp[dwLen-1] = 0x00;
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if ( logFile )
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{
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fwprintf(
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logFile,
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L"%s-%s\r\n",
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gTTime.FormatIsoLcl( gTTime.Now( NULL ), sTime ),
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sTemp );
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fflush( logFile );
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}
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}
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//-----------------------------------------------------------------------------
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// Error message with format and arguments
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//-----------------------------------------------------------------------------
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void __cdecl
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TError::MsgWrite(
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int num ,// in -error number/level code
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WCHAR const msg[] ,// in -error message to display
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... // in -printf args to msg pattern
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)
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{
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WCHAR suffix[TERR_MAX_MSG_LEN];
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va_list argPtr;
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va_start(argPtr, msg);
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_vsnwprintf(suffix, DIM(suffix) - 1, msg, argPtr);
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suffix[DIM(suffix) - 1] = L'\0';
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va_end(argPtr);
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MsgProcess(num, suffix);
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}
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#ifndef WIN16_VERSION
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//-----------------------------------------------------------------------------
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// System Error message with format and arguments
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//-----------------------------------------------------------------------------
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void __cdecl
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TError::SysMsgWrite(
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int num ,// in -error number/level code
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DWORD lastRc ,// in -error return code
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WCHAR const msg[] ,// in -error message/pattern to display
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... // in -printf args to msg pattern
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)
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{
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WCHAR suffix[TERR_MAX_MSG_LEN];
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va_list argPtr;
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int len;
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// When an error occurs while in a constructor for a global object,
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// the TError object may not yet exist. In this case, "this" is zero
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// and we gotta get out of here before we generate a protection exception.
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if ( !this )
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return;
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va_start(argPtr, msg);
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len = _vsnwprintf(suffix, DIM(suffix) - 1, msg, argPtr);
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// append the system message for the lastRc at the end.
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if ( len < DIM(suffix) - 1 )
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{
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ErrorCodeToText(lastRc, DIM(suffix) - len - 1, suffix + len);
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}
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suffix[DIM(suffix) - 1] = L'\0';
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va_end(argPtr);
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MsgProcess(num, suffix);
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}
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//-----------------------------------------------------------------------------
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// System Error message with format and arguments
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//-----------------------------------------------------------------------------
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void __cdecl
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TError::SysMsgWrite(
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int num ,// in -error number/level code
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WCHAR const msg[] ,// in -error message/pattern to display
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... // in -printf args to msg pattern
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)
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{
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WCHAR suffix[TERR_MAX_MSG_LEN];
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va_list argPtr;
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int len;
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DWORD lastRc = GetLastError();
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// When an error occurs while in a constructor for a global object,
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// the TError object may not yet exist. In this case, "this" is zero
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// and we gotta get out of here before we generate a protection exception.
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if ( !this )
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return;
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va_start( argPtr, msg );
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len = _vsnwprintf( suffix, DIM(suffix) - 1, msg, argPtr );
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// append the system message for the lastRc at the end.
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if ( len < DIM(suffix) - 1 )
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{
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ErrorCodeToText(lastRc, DIM(suffix) - len - 1, suffix + len);
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}
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suffix[DIM(suffix) - 1] = L'\0';
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va_end(argPtr);
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MsgProcess(num, suffix);
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}
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#endif
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//-----------------------------------------------------------------------------
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// Error message format, display and exception processing function
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//-----------------------------------------------------------------------------
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void __stdcall
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TError::MsgProcess(
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int num ,// in -error number/level code
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WCHAR const * str // in -error string to display
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)
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{
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static WCHAR const prefLetter[] = L"TIWESVUXXXXX"; // These form the status code that appears at the start of each error message
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WCHAR fullmsg[TERR_MAX_MSG_LEN];
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struct
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{
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USHORT frequency; // audio frequency
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USHORT duration; // duration in mSec
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} audio[] = {{ 300, 20},{ 500, 50},{ 700, 100},
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{ 800, 200},{1000, 300},{1500, 400},
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{2500, 750},{2500,1000},{2500,1000}};
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if ( num >= 0 )
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level = num / 10000; // 10000's position of error number
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else
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level = -1;
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if ( num == 0 )
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{
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wcsncpy(fullmsg, str, DIM(fullmsg));
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fullmsg[DIM(fullmsg) - 1] = L'\0'; // ensure null termination
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}
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else
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{
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if ( num > maxError )
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maxError = num;
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_snwprintf(fullmsg, DIM(fullmsg), L"%c%05d: %-s", prefLetter[level+1], num, str);
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fullmsg[DIM(fullmsg) - 1] = L'\0'; // ensure null termination
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}
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lastError = num;
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StrWrite(level, fullmsg);
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if ( level >= beepLevel )
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Beep(audio[level].frequency, audio[level].duration);
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if ( level >= logLevel )
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LogWrite(fullmsg);
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if ( level > 4 )
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{
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exit(level);
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}
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}
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//-----------------------------------------------------------------------------
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// Return text for error code
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//-----------------------------------------------------------------------------
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WCHAR *
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TError::ErrorCodeToText(
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DWORD code ,// in -message code
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DWORD lenMsg ,// in -length of message text area
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WCHAR * msg // out-returned message text
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)
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{
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static HMODULE hNetMsg = NULL;
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DWORD rc;
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WCHAR * pMsg;
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msg[0] = '\0'; // force to null
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if ( code >= NERR_BASE && code < MAX_NERR )
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{
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if ( !hNetMsg )
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hNetMsg = LoadLibrary(L"netmsg.dll");
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rc = 1;
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}
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else
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{
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rc = DceErrorInqText( code, msg );
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// Change any imbedded CR or LF to blank.
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for ( pMsg = msg;
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*pMsg;
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pMsg++ )
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{
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if ( (*pMsg == L'\x0D') || (*pMsg == L'\x0A') )
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*pMsg = L' ';
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}
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// Remove trailing blanks
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for ( pMsg--;
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pMsg >= msg;
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pMsg-- )
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{
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if ( *pMsg == L' ' )
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*pMsg = L'\0';
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else
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break;
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}
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}
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if ( rc )
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{
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if ( code >= NERR_BASE && code < MAX_NERR && hNetMsg )
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{
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FormatMessage(FORMAT_MESSAGE_FROM_HMODULE
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| FORMAT_MESSAGE_MAX_WIDTH_MASK
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| FORMAT_MESSAGE_IGNORE_INSERTS
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| 80,
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hNetMsg,
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code,
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0,
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msg,
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lenMsg,
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NULL );
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}
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else
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{
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FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
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| FORMAT_MESSAGE_MAX_WIDTH_MASK
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| FORMAT_MESSAGE_IGNORE_INSERTS
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| 80,
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NULL,
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code,
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0,
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msg,
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lenMsg,
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NULL );
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}
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}
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return msg;
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}
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// Err.cpp - end of file
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