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LogFile.h
Package: apihook_Code.zip　[view]
Upload User: jstlsd
Upload Date: 2007-01-13
Package Size: 186k
Code Size: 2k
Category:

Hook api

Development Platform:

Visual C++

LogFile.h：Code Content
  1. //---------------------------------------------------------------------------
  2. //
  3. // LogFile.h
  4. //
  5. // SUBSYSTEM:   Hook system
  6. //
  7. // MODULE:      
  8. //
  9. // DESCRIPTION: Common utilities. 
  10. //              Provides an interface for logging facilities
  11. // 
  12. //             
  13. // AUTHOR: Ivo Ivanov (ivopi@hotmail.com)
  14. // DATE: 2001 December v1.00
  15. //
  16. //---------------------------------------------------------------------------
  17. #if !defined(_LOGFILE_H_)
  18. #define _LOGFILE_H_
  20. #if _MSC_VER > 1000
  21. #pragma once
  22. #endif // _MSC_VER > 1000
  24. #include <share.h>
  25. #include <stdio.h>
  26. //---------------------------------------------------------------------------
  27. //
  28. // class CLogFile 
  29. //
  30. //---------------------------------------------------------------------------
  31. class CLogFile
  32. {
  33. public:
  34. CLogFile(BOOL bTraceEnabled):
  35.   m_bTraceEnabled(bTraceEnabled)
  36. {
  37. m_hMutex = ::CreateMutex(
  38. NULL, 
  39. FALSE, 
  40. "{45428D53-A5DB-4168-BD3C-658419B60279}"
  41. ); 
  42. }
  43. virtual ~CLogFile()
  44. {
  45. ::CloseHandle(m_hMutex);
  46. }
  48. void InitializeFileName(char* pszFileName)
  49. {
  50. strcpy(m_szFileName, pszFileName);
  51. }
  53. void DoLogMessage(char* pszMessage)
  54. {
  55. ::WaitForSingleObject(m_hMutex, INFINITE);
  56. __try
  57. {
  58. if (m_bTraceEnabled)
  59. {
  60. FILE* pOutFile;
  61. char  szFlags[2];
  62. strcpy(szFlags, "a");
  64. pOutFile = _fsopen(m_szFileName, szFlags, _SH_DENYNO);
  66. if (pOutFile != NULL)
  67. {
  68. char szPrintMessage[MAX_PATH];
  69. fseek(pOutFile, 0L, SEEK_END);
  70. sprintf(szPrintMessage, "%sn", pszMessage);
  71. fputs(szPrintMessage, pOutFile);            
  72. fflush(pOutFile);
  74. fclose(pOutFile);
  75. } // if
  76. } // if
  77. }
  78. __finally
  79. {
  80. ::ReleaseMutex(m_hMutex);
  81. }
  82. }
  84. private:
  85. //
  86. // Determines whether to use a log file management
  87. //
  88. BOOL             m_bTraceEnabled;
  89. //
  90. // Name of the log file
  91. //
  92. char             m_szFileName[MAX_PATH];
  93. //
  94. // Handle to the mutex used as guard
  95. //
  96. HANDLE           m_hMutex;
  97. };
  99. #endif // !defined(_LOGFILE_H_)
  101. //--------------------- End of the file -------------------------------------