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NF:wdm.IoSetTopLevelIrp |
IoSetTopLevelIrp function (wdm.h) |
The IoSetTopLevelIrp routine in wdm.h sets the value of the TopLevelIrp field of the current thread. |
ifsk\iosettoplevelirp.htm |
ifsk |
04/16/2018 |
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IoSetTopLevelIrp, IoSetTopLevelIrp routine [Installable File System Drivers], ifsk.iosettoplevelirp, ioref_1c046677-97df-4f46-956c-108a203f83f2.xml, ntifs/IoSetTopLevelIrp |
wdm.h |
Rx.h, Wdm.h |
Universal |
NtosKrnl.lib |
NtosKrnl.exe |
<= DISPATCH_LEVEL |
Windows |
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The IoSetTopLevelIrp routine sets the value of the TopLevelIrp field of the current thread.
I/O request packet (IRP) pointer to be stored in the TopLevelIrp field of the current thread.
IoSetTopLevelIrp sets the value of the TopLevelIrp field in the thread object for the current thread. This value can be NULL, a pointer to the current IRP, or an FSRTL flag. For more information about these values and what they mean, see the reference entry for IoGetTopLevelIrp.
Only file systems can call IoSetTopLevelIrp. File system filters and minifilters cannot safely call this routine, because doing so can cause deadlocks.