FILE_LEVEL_TRIM structure (ntifs.h)

  • Article

The FILE_LEVEL_TRIM structure contains an array of byte ranges to trim for a file.

Syntax

typedef struct _FILE_LEVEL_TRIM {
  ULONG                 Key;
  ULONG                 NumRanges;
  FILE_LEVEL_TRIM_RANGE Ranges[1];
} FILE_LEVEL_TRIM, *PFILE_LEVEL_TRIM;

Members

Key

The key for the byte range locks. Most callers will set this to 0. Remote file systems use Key for tagging a set of range locks.

NumRanges

Total number of range structures in Ranges.

Ranges[1]

Array of trim ranges for a file.

Requirements

Requirement Value
Minimum supported client Windows 8
Header ntifs.h (include Ntifs.h)

See also

FILE_LEVEL_TRIM_RANGE

FSCTL_FILE_LEVEL_TRIM