MEMORY_MAPPED_FILE Class Reference

#include <LibSymbolInfo.h>

Public Member Functions
	MEMORY_MAPPED_FILE (PSTR pszFileName)
	~MEMORY_MAPPED_FILE (void)
PVOID	GetBase (void)
DWORD	GetFileSize (void)
BOOL	IsValid (void)
errMMF	GetErrorType ()
	MEMORY_MAPPED_FILE (PSTR pszFileName)
	~MEMORY_MAPPED_FILE (void)
PVOID	GetBase (void)
DWORD	GetFileSize (void)
BOOL	IsValid (void)
errMMF	GetErrorType ()

Detailed Description

Definition at line 65 of file LibSymbolInfo.h.

Constructor & Destructor Documentation

MEMORY_MAPPED_FILE::MEMORY_MAPPED_FILE

(

PSTR

pszFileName

)

Definition at line 201 of file LibSymbolInfo.cpp.

                                                         {

   //
   // Given a filename, the constructor opens a file handle, creates a file
   // mapping, and maps the entire file into memory.
   //
   m_hFile = INVALID_HANDLE_VALUE;
   m_hFileMapping = 0;
   m_pMemoryMappedFileBase = 0;
   m_cbFile = 0;
   m_errCode = errMMF_FileOpen;    // Initial error code: not found
    // First get a file handle      
   m_hFile = CreateFile(pszFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
                       OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, (HANDLE)0);
                   
   if ( m_hFile == INVALID_HANDLE_VALUE )
   {
       m_errCode = errMMF_FileOpen;
       return;
   }
    m_cbFile = ::GetFileSize( m_hFile, 0 );
    // Now, create a file mapping   
   m_hFileMapping = CreateFileMapping(m_hFile,NULL, PAGE_READONLY, 0, 0,NULL);
   if ( m_hFileMapping == 0 )
   {
       // Oops.  Something went wrong.  Clean up.
       CloseHandle(m_hFile);
       m_hFile = INVALID_HANDLE_VALUE;
       m_errCode = errMMF_FileMapping;
       return;
   }
    m_pMemoryMappedFileBase = (PCHAR)MapViewOfFile( m_hFileMapping,
                                                   FILE_MAP_READ, 0, 0, 0);
    if ( m_pMemoryMappedFileBase == 0 )
   {
       // Oops.  Something went wrong.  Clean up.
       CloseHandle(m_hFileMapping);
       m_hFileMapping = 0;
       CloseHandle(m_hFile);
       m_hFile = INVALID_HANDLE_VALUE;
       m_errCode = errMMF_MapView;
       return;
   }
    m_errCode = errMMF_NoError;
}

MEMORY_MAPPED_FILE::~MEMORY_MAPPED_FILE

(

void

)

Definition at line 247 of file LibSymbolInfo.cpp.

{
    // Clean up everything that was created by the constructor
    if ( m_pMemoryMappedFileBase )
        UnmapViewOfFile( m_pMemoryMappedFileBase );

    if ( m_hFileMapping )
        CloseHandle( m_hFileMapping );

    if ( m_hFile != INVALID_HANDLE_VALUE )
        CloseHandle( m_hFile ); 

    m_errCode = errMMF_FileOpen;
}

MEMORY_MAPPED_FILE::MEMORY_MAPPED_FILE

(

PSTR

pszFileName

)

MEMORY_MAPPED_FILE::~MEMORY_MAPPED_FILE

(

void

)

Member Function Documentation

PVOID MEMORY_MAPPED_FILE::GetBase ( void  )

inline

Definition at line 71 of file LibSymbolInfo.h.

{ return m_pMemoryMappedFileBase; }

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PVOID MEMORY_MAPPED_FILE::GetBase ( void  )

inline

Definition at line 86 of file genwindef.cc.

{ return m_pMemoryMappedFileBase; }

errMMF MEMORY_MAPPED_FILE::GetErrorType ( )

inline

Definition at line 74 of file LibSymbolInfo.h.

{ return m_errCode; }

errMMF MEMORY_MAPPED_FILE::GetErrorType ( )

inline

Definition at line 89 of file genwindef.cc.

{ return m_errCode; }

DWORD MEMORY_MAPPED_FILE::GetFileSize ( void  )

inline

Definition at line 72 of file LibSymbolInfo.h.

{ return m_cbFile; }

DWORD MEMORY_MAPPED_FILE::GetFileSize ( void  )

inline

Definition at line 87 of file genwindef.cc.

{ return m_cbFile; }

BOOL MEMORY_MAPPED_FILE::IsValid ( void  )

inline

Definition at line 73 of file LibSymbolInfo.h.

{ return errMMF_NoError == m_errCode; } 

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BOOL MEMORY_MAPPED_FILE::IsValid ( void  )

inline

Definition at line 88 of file genwindef.cc.

{ return errMMF_NoError == m_errCode; } 

---

The documentation for this class was generated from the following files:

• source/geant4.10.03.p03/cmake/Modules/genwindef/LibSymbolInfo.h
• source/geant4.10.03.p03/config/genwindef.cc
• source/geant4.10.03.p03/cmake/Modules/genwindef/LibSymbolInfo.cpp