FSCTL_OFFLOAD_READ_INPUT - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// ntifs.h

typedef struct _FSCTL_OFFLOAD_READ_INPUT {
  ULONG     Size;
  ULONG     Flags;
  ULONG     TokenTimeToLive;
  ULONG     Reserved;
  ULONGLONG FileOffset;
  ULONGLONG CopyLength;
} FSCTL_OFFLOAD_READ_INPUT, *PFSCTL_OFFLOAD_READ_INPUT;
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ns-ntifs-_fsctl_offload_read_input)

FSCTL_OFFLOAD_READ_INPUT structure

Description

The FSCTL_OFFLOAD_READ_INPUT structure contains the input for the FSCTL_OFFLOAD_READ control code request.

Members

Size

The size in bytes of this structure. Set this member to sizeof(FSCTL_OFFLOAD_READ_INPUT).

Flags

This member is not used. Set to 0.

TokenTimeToLive

The time, in milliseconds, for which the read operation remains valid. The default time-to-live is 0. The recommended value for time-to-live is also 0.

Reserved

Reserved.

FileOffset

The position in the file to start reading from. The offset value must be aligned to a logical sector boundary on the volume.

CopyLength

The length, in bytes, of data to read, starting at FileOffset. The length value must align to a logical sector boundary on the volume, except when the length matches end-of-file.

Remarks

The storage device's copy provider retains the data read for the duration in TokenTimeToLive. Multiple writes with the same token can be performed until the time in TokenTimeToLive expires.

See also

FSCTL_OFFLOAD_READ

FSCTL_OFFLOAD_READ_OUTPUT

View the official Windows Driver Kit DDI reference

Edit description on GitHub