Windows Implementation Libraries (WIL)

· October 24, 2025

Useful   Windows   Kernel   Drivers

WIL

During NDIS internals research something suspicious was found

dt ndis!_NDIS_MINIPORT_BLOCK

ndis!_NDIS_MINIPORT_BLOCK

Something like:

wil::unique_any_t<wil::details::unique_storage<wil::details::resource_policy<NDISWATCHDOG__ *,void (cdecl*)(NDISWATCHDOG *),&ndisFreeWatchdog,wistd::integral_constant<unsigned int64,1>,NDISWATCHDOG *,-1,std::nullptr_t> > >

This is from Windows Implementation Libraries (WIL), it is a header only library, just download and use:

#include "wil\resource.h"

Usage:

NTSTATUS example_1()
{
    lock_acquire(&lock);
    lock->owner = KeGetCurrentThread();

    auto guard = wil::scope_exit([&]() {
        lock->owner = nullptr;
        lock_release(&lock);
    });

     if ( . . . failure . . .)
         return STATUS_UNSUCCESSFUL; // lock is released via wil::scope_exit

     return STATUS_SUCCESS; // lock is released via wil::scope_exit
}


NTSTATUS example_2()
{
    RETURN_IF_NTSTATUS_FAILED(ZwCreateFile(. . . ));
    return STATUS_SUCCESS;
}

So, if someone want to use C++ in the drivers, WIL can be considered for sure:

C++ configuration

C++ driver configuration (MSVC)

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