VSIVirtualHandle* VSICurlStreamingFSHandler::Open( const char *pszFilename,
const char *pszAccess )
{
if (strchr(pszAccess, 'w') != NULL ||
strchr(pszAccess, '+') != NULL)
{
CPLError(CE_Failure, CPLE_AppDefined,
"Only read-only mode is supported for /vsicurl_streaming");
return NULL;
}
VSICurlStreamingHandle* poHandle = new VSICurlStreamingHandle(
this, pszFilename + strlen("/vsicurl_streaming/"));
/* If we didn't get a filelist, check that the file really exists */
if (!poHandle->Exists())
{
delete poHandle;
poHandle = NULL;
}
if( CSLTestBoolean( CPLGetConfigOption( "VSI_CACHE", "FALSE" ) ) )
return VSICreateCachedFile( poHandle );
else
return poHandle;
}
VSIVirtualHandle *
VSIUnixStdioFilesystemHandler::Open( const char *pszFilename,
const char *pszAccess )
{
FILE *fp = VSI_FOPEN64( pszFilename, pszAccess );
int nError = errno;
VSIDebug3( "VSIUnixStdioFilesystemHandler::Open(\"%s\",\"%s\") = %p",
pszFilename, pszAccess, fp );
if( fp == NULL )
{
errno = nError;
return NULL;
}
VSIUnixStdioHandle *poHandle = new VSIUnixStdioHandle(this, fp);
errno = nError;
/* -------------------------------------------------------------------- */
/* If VSI_CACHE is set we want to use a cached reader instead */
/* of more direct io on the underlying file. */
/* -------------------------------------------------------------------- */
if( (EQUAL(pszAccess,"r") || EQUAL(pszAccess,"rb"))
&& CSLTestBoolean( CPLGetConfigOption( "VSI_CACHE", "FALSE" ) ) )
{
return VSICreateCachedFile( poHandle );
}
else
{
return poHandle;
}
}
VSIVirtualHandle *VSIWin32FilesystemHandler::Open( const char *pszFilename,
const char *pszAccess )
{
DWORD dwDesiredAccess, dwCreationDisposition, dwFlagsAndAttributes;
HANDLE hFile;
if( strchr(pszAccess, '+') != NULL ||
strchr(pszAccess, 'w') != 0 ||
strchr(pszAccess, 'a') != 0 )
dwDesiredAccess = GENERIC_READ | GENERIC_WRITE;
else
dwDesiredAccess = GENERIC_READ;
if( strstr(pszAccess, "w") != NULL )
dwCreationDisposition = CREATE_ALWAYS;
else
dwCreationDisposition = OPEN_EXISTING;
dwFlagsAndAttributes = (dwDesiredAccess == GENERIC_READ) ?
FILE_ATTRIBUTE_READONLY : FILE_ATTRIBUTE_NORMAL;
/* -------------------------------------------------------------------- */
/* On Win32 consider treating the filename as utf-8 and */
/* converting to wide characters to open. */
/* -------------------------------------------------------------------- */
#ifndef WIN32CE
if( CSLTestBoolean(
CPLGetConfigOption( "GDAL_FILENAME_IS_UTF8", "YES" ) ) )
{
wchar_t *pwszFilename =
CPLRecodeToWChar( pszFilename, CPL_ENC_UTF8, CPL_ENC_UCS2 );
hFile = CreateFileW( pwszFilename, dwDesiredAccess,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, dwCreationDisposition, dwFlagsAndAttributes,
NULL );
CPLFree( pwszFilename );
}
else
{
hFile = CreateFile( pszFilename, dwDesiredAccess,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, dwCreationDisposition, dwFlagsAndAttributes,
NULL );
}
/* -------------------------------------------------------------------- */
/* On WinCE we only support plain ascii filenames. */
/* -------------------------------------------------------------------- */
#else /* def WIN32CE */
hFile = CE_CreateFileA( pszFilename, dwDesiredAccess,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL );
#endif
if( hFile == INVALID_HANDLE_VALUE )
{
errno = ErrnoFromGetLastError();
return NULL;
}
/* -------------------------------------------------------------------- */
/* Create a VSI file handle. */
/* -------------------------------------------------------------------- */
VSIWin32Handle *poHandle = new VSIWin32Handle;
poHandle->hFile = hFile;
if (strchr(pszAccess, 'a') != 0)
poHandle->Seek(0, SEEK_END);
/* -------------------------------------------------------------------- */
/* If VSI_CACHE is set we want to use a cached reader instead */
/* of more direct io on the underlying file. */
/* -------------------------------------------------------------------- */
if( (EQUAL(pszAccess,"r") || EQUAL(pszAccess,"rb"))
&& CSLTestBoolean( CPLGetConfigOption( "VSI_CACHE", "FALSE" ) ) )
{
return VSICreateCachedFile( poHandle );
}
else
{
return poHandle;
}
}