FINLINE void releaseLockFile(
const char * pszBasePath,
FLMBOOL bDelete)
{
#ifndef FLM_UNIX
F_UNREFERENCED_PARM( bDelete);
F_UNREFERENCED_PARM( pszBasePath);
#endif
if( m_pLockFileHdl)
{
// Release the lock file
(void)m_pLockFileHdl->closeFile();
m_pLockFileHdl->Release();
m_pLockFileHdl = NULL;
#ifdef FLM_UNIX
if( bDelete)
{
IF_FileSystem * pFileSystem = f_getFileSysPtr();
char szTmpPath[ F_PATH_MAX_SIZE];
// Delete the lock file
f_strcpy( szTmpPath, pszBasePath);
pFileSystem->pathAppend( szTmpPath, "64.LCK");
pFileSystem->deleteFile( szTmpPath);
}
#endif
}
}
FINLINE void dataFilePath(
FLMUINT uiFileNum,
char * pszPath)
{
char szFileName[ 13];
IF_FileSystem * pFileSystem = f_getFileSysPtr();
f_strcpy( pszPath, m_szPath);
formatFileNum( uiFileNum, szFileName);
pFileSystem->pathAppend( pszPath, szFileName);
}
RCODE f_fileFindNext(
F_IO_FIND_DATA * pFindData,
char * pszFoundPath,
FLMUINT * puiFoundAttrib)
{
RCODE rc = NE_FLM_OK;
IF_FileSystem * pFileSystem = f_getFileSysPtr();
if( FindNextFile( pFindData->findHandle,
&(pFindData->findBuffer)) == FALSE)
{
rc = f_mapPlatformError( GetLastError(), NE_FLM_READING_FILE);
goto Exit;
}
// Loop until a file with correct attributes is found
for( ;;)
{
if( f_fileMeetsFindCriteria( pFindData))
{
break;
}
if( FindNextFile( pFindData->findHandle,
&(pFindData->findBuffer)) == FALSE)
{
rc = f_mapPlatformError( GetLastError(), NE_FLM_READING_FILE);
goto Exit;
}
}
// Append the file name to the path name
f_strcpy( pszFoundPath, pFindData->szSearchPath);
if( RC_BAD( rc = pFileSystem->pathAppend( pszFoundPath,
(char *)pFindData->findBuffer.cFileName)))
{
goto Exit;
}
// Return the found file attribute
*puiFoundAttrib = pFindData->findBuffer.dwFileAttributes;
Exit:
return( rc);
}
RCODE f_fileFindNext(
F_IO_FIND_DATA * pFindData,
char * pszFoundPath,
FLMUINT * puiFoundAttrib)
{
RCODE rc = NE_FLM_OK;
IF_FileSystem * pFileSystem = f_getFileSysPtr();
int iRetVal;
if( (iRetVal = Find2( pFindData)) != 0)
{
// If there were no more files found then return no more files
// instead of mapping to error path not found or io error.
// To return no more files ret_val is ENOENT (set in Find2)
// and errno is not set
if( iRetVal == ENOENT && errno == 0)
{
return( RC_SET( NE_FLM_IO_NO_MORE_FILES));
}
return( f_mapPlatformError( errno, NE_FLM_READING_FILE));
}
// Append the file name to the path name
f_strcpy( pszFoundPath, pFindData->search_path);
if( RC_BAD( rc = pFileSystem->pathAppend( pszFoundPath,
(char *)pFindData->name)))
{
goto Exit;
}
*puiFoundAttrib = (FLMUINT)ReturnAttributes(
pFindData->FileStat.st_mode, pszFoundPath);
Exit:
return( rc);
}
/****************************************************************************
Desc: This routine obtains exclusive access to a 64-bit file by creating
a .lck file. The object holds the .lck file open as long as the
64-bit file is open.
****************************************************************************/
RCODE F_MultiFileHdl::createLockFile(
const char * pszBasePath)
{
RCODE rc = NE_FLM_OK;
char szLockPath [F_PATH_MAX_SIZE];
F_FileHdl * pLockFileHdl = NULL;
FLMUINT uiIoFlags = FLM_IO_RDWR | FLM_IO_EXCL | FLM_IO_SH_DENYRW;
IF_FileSystem * pFileSystem = f_getFileSysPtr();
f_strcpy( szLockPath, pszBasePath);
pFileSystem->pathAppend( szLockPath, "64.LCK");
// Attempt to create the lock file. If it fails, the lock file
// may have been left because of a crash. Hence, we first try
// to delete the file. If that succeeds, we then attempt to
// create the file again. If it, or the 2nd create fail, we simply
// return an access denied error.
if( RC_BAD( rc = f_allocFileHdl( &pLockFileHdl)))
{
goto Exit;
}
#ifndef FLM_UNIX
// On Unix, we do not want to delete the file because it
// will succeed even if someone else has the file open.
uiIoFlags |= FLM_IO_DELETE_ON_RELEASE;
#endif
if( RC_BAD( pLockFileHdl->createFile( szLockPath, uiIoFlags)))
{
#ifndef FLM_UNIX
if (RC_BAD( pFileSystem->deleteFile( szLockPath)))
{
rc = RC_SET( NE_FLM_IO_ACCESS_DENIED);
goto Exit;
}
else if (RC_BAD( pLockFileHdl->createFile( szLockPath, uiIoFlags)))
{
rc = RC_SET( NE_FLM_IO_ACCESS_DENIED);
goto Exit;
}
#else
if( RC_BAD( pLockFileHdl->openFile( szLockPath, uiIoFlags)))
{
rc = RC_SET( NE_FLM_IO_ACCESS_DENIED);
goto Exit;
}
#endif
}
#ifdef FLM_UNIX
if( RC_BAD( pLockFileHdl->lock()))
{
rc = RC_SET( NE_FLM_IO_ACCESS_DENIED);
goto Exit;
}
#endif
m_pLockFileHdl = pLockFileHdl;
pLockFileHdl = NULL;
Exit:
if (pLockFileHdl)
{
(void)pLockFileHdl->closeFile();
pLockFileHdl->Release();
pLockFileHdl = NULL;
}
return( rc);
}
/****************************************************************************
Desc: Creates a new 64-bit file with a unique, generated name
****************************************************************************/
RCODE F_MultiFileHdl::createUniqueFile(
const char * pszPath, // Directory where the file is to be created
const char * pszFileExtension) // Extension to be used on the new file.
{
RCODE rc = NE_FLM_OK;
FLMUINT uiCount;
FLMBOOL bModext = TRUE;
FLMBOOL bCreatedDir = FALSE;
FLMUINT uiBaseTime = 0;
FLMBYTE ucHighByte = 0;
char szDirName[ F_FILENAME_SIZE];
char szTmpPath[ F_PATH_MAX_SIZE];
char szBasePath[ F_PATH_MAX_SIZE];
IF_FileSystem * pFileSystem = f_getFileSysPtr();
if( m_bOpen)
{
rc = RC_SET_AND_ASSERT( NE_FLM_FAILURE);
goto Exit;
}
if( !pszPath || pszPath[ 0] == '\0')
{
#if defined( FLM_UNIX)
f_strcpy( szBasePath, "./");
#elif defined( FLM_NLM)
f_strcpy( szBasePath, "SYS:_NETWARE");
#else
szBasePath[ 0] = '\0';
#endif
}
else
{
f_strcpy( szBasePath, pszPath);
}
if ((pszFileExtension) && (f_strlen( pszFileExtension) >= 3))
{
bModext = FALSE;
}
uiCount = 0;
szDirName[ 0] = '\0';
do
{
pFileSystem->pathCreateUniqueName( &uiBaseTime, szDirName,
pszFileExtension, &ucHighByte, bModext);
f_strcpy( szTmpPath, szBasePath);
pFileSystem->pathAppend( szTmpPath, szDirName);
rc = pFileSystem->createDir( szTmpPath);
} while ((rc != NE_FLM_OK) && (uiCount++ < 20));
if( RC_BAD( rc))
{
goto Exit;
}
f_strcpy( m_szPath, szTmpPath);
bCreatedDir = TRUE;
// Create the lock file
if( RC_BAD( rc = createLockFile( m_szPath)))
{
goto Exit;
}
// Initialize the EOF to 0 and set the state to open
m_ui64EOF = 0;
m_bOpen = TRUE;
Exit:
// Release the lock file
if( RC_BAD( rc))
{
releaseLockFile( m_szPath, TRUE);
if( bCreatedDir)
{
(void)pFileSystem->removeDir( m_szPath);
}
}
return( rc);
}
RCODE f_fileFindFirst(
char * pszSearchPath,
FLMUINT uiSearchAttrib,
F_IO_FIND_DATA * pFindData,
char * pszFoundPath,
FLMUINT * puiFoundAttrib)
{
RCODE rc = NE_FLM_OK;
char szTmpPath[ F_PATH_MAX_SIZE];
FSTATIC char pszWildCard[] = {'*',0};
int iRetVal;
IF_FileSystem * pFileSystem = f_getFileSysPtr();
if( !pszSearchPath)
{
rc = RC_SET( NE_FLM_IO_PATH_NOT_FOUND);
goto Exit;
}
f_strcpy( szTmpPath, pszSearchPath);
if( RC_BAD( rc = pFileSystem->pathAppend( szTmpPath, pszWildCard)))
{
goto Exit;
}
f_memset( pFindData, 0, sizeof( F_IO_FIND_DATA));
if( uiSearchAttrib & F_IO_FA_DIRECTORY)
{
pFindData->mode_flag |= S_IFDIR;
}
if( uiSearchAttrib & F_IO_FA_RDONLY)
{
pFindData->mode_flag |= S_IREAD;
}
iRetVal = Find1( (char*)szTmpPath, pFindData);
if( iRetVal != 0)
{
// If there were no more files found then return no more files
// instead of mapping to error path not found or io error.
// To return no more files ret_val is ENOENT (set in Find2)
// and errno is not set
if( iRetVal == ENOENT && errno == 0)
{
rc = RC_SET( NE_FLM_IO_NO_MORE_FILES);
}
else
{
rc = f_mapPlatformError( errno, NE_FLM_READING_FILE);
}
goto Exit;
}
// filter out ".." (PARENT) and "." (CURRENT) directories
if( uiSearchAttrib & F_IO_FA_DIRECTORY )
{
while( (f_strcmp( pFindData->name, "..") == 0) ||
(f_strcmp( pFindData->name, ".") == 0))
{
if( (iRetVal = Find2( pFindData)) != 0)
{
// If there were no more files found then return no more files
// instead of mapping to error path not found or io error.
// To return no more files ret_val is ENOENT (set in Find2)
// and errno is not set
if( iRetVal == ENOENT && errno == 0)
{
rc = RC_SET( NE_FLM_IO_NO_MORE_FILES);
}
else
{
rc = f_mapPlatformError( errno, NE_FLM_READING_FILE);
}
goto Exit;
}
}
}
// Append the file name to the path name
f_strcpy( pszFoundPath, pszSearchPath);
if( RC_BAD( rc = pFileSystem->pathAppend( pszFoundPath,
(char *)pFindData->name)))
{
goto Exit;
}
*puiFoundAttrib = (FLMUINT)ReturnAttributes(
pFindData->FileStat.st_mode, pszFoundPath);
// Save the search path in the NE_FLM_IO_FIND_DATA struct
// for a find next call
f_strcpy( pFindData->search_path, pszSearchPath);
Exit:
return( rc);
}
RCODE f_fileFindFirst(
char * pszSearchPath,
FLMUINT uiSearchAttrib,
F_IO_FIND_DATA * pFindData,
char * pszFoundPath,
FLMUINT * puiFoundAttrib)
{
RCODE rc = NE_FLM_OK;
char szTmpPath[ F_PATH_MAX_SIZE];
char * pszWildCard = "*.*";
IF_FileSystem * pFileSystem = f_getFileSysPtr();
f_memset( pFindData, 0, sizeof( F_IO_FIND_DATA));
pFindData->findHandle = INVALID_HANDLE_VALUE;
pFindData->uiSearchAttrib = uiSearchAttrib;
if( !pszSearchPath)
{
rc = RC_SET( NE_FLM_IO_PATH_NOT_FOUND);
goto Exit;
}
f_strcpy( pFindData->szSearchPath, pszSearchPath);
if( uiSearchAttrib & F_IO_FA_NORMAL )
{
uiSearchAttrib |= F_IO_FA_ARCHIVE;
}
f_strcpy( szTmpPath, pszSearchPath);
if( RC_BAD( rc = pFileSystem->pathAppend( szTmpPath, pszWildCard)))
{
goto Exit;
}
if( (pFindData->findHandle = FindFirstFile( (LPTSTR)szTmpPath,
&(pFindData->findBuffer))) == INVALID_HANDLE_VALUE)
{
rc = f_mapPlatformError( GetLastError(), NE_FLM_OPENING_FILE);
goto Exit;
}
// Loop until a file with correct attributes is found
for( ;;)
{
if( f_fileMeetsFindCriteria( pFindData))
{
break;
}
if( FindNextFile( pFindData->findHandle,
&(pFindData->findBuffer)) == FALSE)
{
rc = f_mapPlatformError( GetLastError(), NE_FLM_READING_FILE);
goto Exit;
}
}
// Append the file name to the path name
f_strcpy( pszFoundPath, pFindData->szSearchPath);
if( RC_BAD( rc = pFileSystem->pathAppend( pszFoundPath,
(char *)pFindData->findBuffer.cFileName)))
{
goto Exit;
}
// Return the found file attribute
*puiFoundAttrib = pFindData->findBuffer.dwFileAttributes;
Exit:
if( RC_BAD( rc) && pFindData &&
pFindData->findHandle != INVALID_HANDLE_VALUE)
{
f_fileFindClose( pFindData);
}
return( rc);
}