FltInitializeFileLock - NtDoc
Native API online documentation, based on the System Informer
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headers
// fltkernel.h
VOID FLTAPI FltInitializeFileLock(
[out] PFILE_LOCK FileLock
);
View the official Windows Driver Kit DDI referenceNo description available.
The FltInitializeFileLock routine initializes an opaque FILE_LOCK structure that the caller has allocated from paged pool.
FileLock [out]Pointer to an uninitialized FILE_LOCK structure.
None
The FILE_LOCK structure is opaque: that is, its members are reserved for system use.
Once initialized, the FILE_LOCK structure can be used to lock a byte range in a file by calling FltProcessFileLock.
It is a programming error to call FltInitializeFileLock for a FILE_LOCK structure that has already been initialized by FltInitializeFileLock or FltAllocateFileLock, unless the structure has been uninitialized by a subsequent call to FltUninitializeFileLock.
When the FILE_LOCK structure is no longer needed, it can be uninitialized by calling FltUninitializeFileLock. The uninitialized FILE_LOCK structure can then be initialized for reuse by calling FltInitializeFileLock.
To allocate and initialize a new opaque FILE_LOCK structure, call FltAllocateFileLock.
To free an initialized FILE_LOCK structure, call FltFreeFileLock.