FsRtlAreThereCurrentOrInProgressFileLocks function (ntifs.h)

Article
02/22/2024

TheFsRtlAreThereCurrentOrInProgressFileLocks routine determines if there are byte range locks assigned to a file or any lock operations in progress for that file.

Syntax

BOOLEAN FsRtlAreThereCurrentOrInProgressFileLocks(
  [in] PFILE_LOCK FileLock
);

Parameters

[in] FileLock

A pointer to the FILE_LOCK structure for the file to be checked.

Return value

The routine returns TRUE when there are any byte range locks assigned to the file or when there are byte range lock requests in progress for the file. Otherwise, the routine returns FALSE.

Remarks

File systems can use the FsRtlAreThereCurrentOrInProgressFileLocks routine in Oplock Semantics to determine whether to grant a shared oplock.

Requirements

Requirement	Value
Minimum supported client	Windows 7
Target Platform	Universal
Header	ntifs.h (include FltKernel.h, Ntifs.h)
Library	NtosKrnl.lib
DLL	NtosKrnl.exe
IRQL	<=APC_LEVEL