// ntifs.h
BOOLEAN FsRtlAreThereWaitingFileLocks(
[in] PFILE_LOCK FileLock
);
View the official Windows Driver Kit DDI referenceNo description available.
The FsRtlAreThereWaitingFileLocks routine checks a file lock queue for any waiting file locks.
FileLock [in]The file lock that specifies locked ranges.
Returns TRUE if waiting file locks are present; FALSE otherwise.