// ntifs.h

void FsRtlGetBypassIoOpenCountPtr(
  _fo
);
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (nf-ntifs-fsrtlgetbypassioopencountptr)

Description

FsRtlGetBypassIoOpenCountPtr returns a pointer to the count of how many BypassIO opens there are for a given stream.

Parameters

`_fo`

The file object on which the query is being made.

Remarks

When FSRTL_ADVANCED_FCB_HEADER.Version is >= FSRTL_FCB_HEADER_V4, FsRtlGetBypassIoOpenCountPtr returns a pointer to the current value of that structure's BypassIoOpenCount field. This routine returns NULL for earlier version numbers, which do not have a BypassIoOpenCount field.

See BypassIO for filter drivers for more information.