FILE_SUPPORTS_SPARSE_VDL top-level constant

int const FILE_SUPPORTS_SPARSE_VDL

The file system tracks whether each cluster of a file contains valid data (either from explicit file writes or automatic zeros) or invalid data (has not yet been written to or zeroed). File systems that use sparse valid data length (VDL) do not store a valid data length and do not require that valid data be contiguous within a file.

Implementation

const FILE_SUPPORTS_SPARSE_VDL = 0x10000000;