int LogFile::Open()
{
int nError = 1; // preset this in case LOGOG_FLAVOR_WINDOWS is not defined
bool bFileAlreadyExists = false;
FILE *fpTest;
#ifdef LOGOG_FLAVOR_WINDOWS
nError = fopen_s( &fpTest, m_pFileName, "r"); // ignore the error code
#else // LOGOG_FLAVOR_WINDOWS
fpTest = fopen( m_pFileName, "r");
#endif // LOGOG_FLAVOR_WINDOWS
if ( fpTest != NULL )
{
fclose( fpTest );
bFileAlreadyExists = true;
}
/** Windows tries to be clever and help us with converting line feeds
** to carriage returns when writing a text file. This causes problems
** when writing a Unicode file as Windows helpfully inserts a single-byte
** 0x0D between the return and line feed on write. So we open and operate
** the output in binary mode only.
**/
#ifdef LOGOG_FLAVOR_WINDOWS
#ifdef LOGOG_UNICODE
nError = fopen_s( &m_pFile, m_pFileName, "ab, ccs=UNICODE" );
#else // LOGOG_UNICODE
nError = fopen_s( &m_pFile, m_pFileName, "ab" );
#endif // LOGOG_UNICODE
if ( nError != 0 )
return nError;
#else // LOGOG_FLAVOR_WINDOWS
m_pFile = fopen( m_pFileName, "ab+" );
#endif // LOGOG_FLAVOR_WINDOWS
if ( m_pFile == NULL )
m_bOpenFailed = true; // and no further outputs will work
else
{
#ifdef LOGOG_UNICODE
if ( !bFileAlreadyExists )
{
WriteUnicodeBOM();
}
#endif
}
return ( m_pFile ? 0 : -1 );
}
int LogFile::Open()
{
#ifdef LOGOG_UNICODE
bool bFileAlreadyExists = false;
#endif // LOGOG_UNICODE
FILE *fpTest;
#ifdef LOGOG_FLAVOR_WINDOWS
int nError; // only exists in Windows build
nError = fopen_s( &fpTest, m_pFileName, "r"); // ignore the return code for now
#else // LOGOG_FLAVOR_WINDOWS
fpTest = fopen( m_pFileName, "r");
#endif // LOGOG_FLAVOR_WINDOWS
if ( fpTest != NULL )
{
fclose( fpTest );
#ifdef LOGOG_UNICODE
bFileAlreadyExists = true;
#endif // LOGOG_UNICODE
}
/** Windows tries to be clever and help us with converting line feeds
** to carriage returns when writing a text file. This causes problems
** when writing a Unicode file as Windows helpfully inserts a single-byte
** 0x0D between the return and line feed on write. So we open and operate
** the output in binary mode only.
**/
#ifdef LOGOG_FLAVOR_WINDOWS
#ifdef LOGOG_UNICODE
const char *openMode = "ab, ccs=UNICODE";
#else // LOGOG_UNICODE
const char *openMode = "ab";
#endif // LOGOG_UNICODE
m_pFile = _fsopen( m_pFileName, openMode, _SH_DENYWR );
nError = (m_pFile != NULL) ? (0) : (errno);
if ( nError != 0 )
return nError;
#else // LOGOG_FLAVOR_WINDOWS
m_pFile = fopen( m_pFileName, "ab+" );
#endif // LOGOG_FLAVOR_WINDOWS
if ( m_pFile == NULL )
m_bOpenFailed = true; // and no further outputs will work
else
{
#ifdef LOGOG_UNICODE
if ( !bFileAlreadyExists )
{
WriteUnicodeBOM();
}
#endif
}
// Disable output buffering if requested.
// Buffering is performed by default.
if (!m_bEnableOutputBuffering && m_pFile)
{
setvbuf(m_pFile, NULL, _IONBF, 0);
}
return ( m_pFile ? 0 : -1 );
}
