FsRtlCurrentOplockH function (ntifs.h)
A file system or filter driver calls FsRtlCurrentOplockH to determine whether there are any CACHE_HANDLE_LEVEL opportunistic locks (oplocks) on a file.
Syntax
BOOLEAN FsRtlCurrentOplockH(
[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
FsRtlCurrentOplockH returns TRUE if there are CACHE_HANDLE_LEVEL opportunistic locks that are currently being held. Otherwise, it returns FALSE.
Remarks
FsRtlCurrentOplockH returns FALSE if no CACHE_HANDLE_LEVEL opportunistic locks (oplocks) are currently held.
For more information about opportunistic locks, see the Microsoft Windows SDK documentation.
Minifilters should call FltCurrentOplockH instead of FsRtlCurrentOplock.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | The FsRtlCurrentOplockH routine is available starting with Windows 7. |
| Target Platform | Universal |
| Header | ntifs.h (include Ntifs.h) |
| Library | NtosKrnl.lib |
| DLL | NtosKrnl.exe |
| IRQL | <= APC_LEVEL |
See also
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