FsRtlOplockIsSharedRequest - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// ntifs.h

BOOLEAN FsRtlOplockIsSharedRequest(
  [in] PIRP Irp
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-ntifs-_fsrtl_advanced_fcb_header-fsrtloplockissharedrequest)

FsRtlOplockIsSharedRequest function

Description

The FsRtlOplockIsSharedRequest routine determines if a request for an opportunistic lock (oplock) wants a shared oplock.

Parameters

Irp [in]

A pointer to the IRP that declares the requested operation. The caller must ensure that the IRP has a major code of IRP_MJ_FILE_SYSTEM_CONTROL and a minor code of IRP_MN_USER_FS_REQUEST.

Return value

FsRtlOplockIsSharedRequest returns TRUE if the oplock request is for a shared oplock (that is, a level 2, R, or RH oplock). FsRtlOplockIsSharedRequest returns FALSE if the oplock request is not for a shared oplock or if the IRP is not an oplock request. For more information about oplock types, see the Oplock Semantics Overview page. Minifilters should call FltOplockIsSharedRequest instead of FsRtlOplockIsSharedRequest.

See also

FltOplockIsSharedRequest

View the official Windows Driver Kit DDI reference

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