Edit

FsRtlCurrentOplock function (ntifs.h)

  • Article

A file system or filter driver calls FsRtlCurrentOplock to determine whether there are any opportunistic locks (oplocks) on a file.

Syntax

BOOLEAN FsRtlCurrentOplock(
  [in] POPLOCK Oplock
);

Parameters

[in] Oplock

An opaque opportunistic lock pointer for the file. This pointer must have been initialized by a previous call to FsRtlInitializeOplock.

Return value

FsRtlCurrentOplock returns TRUE if there are opportunistic locks (oplocks) that are currently being held. Otherwise, it returns FALSE.

Remarks

FsRtlCurrentOplock returns FALSE if no opportunistic locks are currently held.

For more information about opportunistic locks, see the Microsoft Windows SDK documentation.

Minifilters should call FltCurrentOplock instead of FsRtlCurrentOplock.

Requirements

Requirement Value
Minimum supported client The FsRtlCurrentOplock routine is available starting with Windows Vista.
Target Platform Universal
Header ntifs.h (include Ntifs.h)
Library NtosKrnl.lib
DLL NtosKrnl.exe
IRQL <= APC_LEVEL

See also

FltCurrentOplock

FsRtlInitializeOplock