Replaced sleeps with an event

[mihaly044]

Description of the problem I am trying to fix:
The original implementation suspends execution for a fixed amount of time in order to simulate waiting for the FakeDispatchRoutine to finish:

Sleep(1000);
supOpenDriver((LPWSTR)PROCEXP152, GENERIC_READ| GENERIC_WRITE, &victimDeviceHandle);
Sleep(1000);

There may be edge cases in which the execution of the fake dispatch routine does not finish in time.
When the execution does not finish in time, KDU would falsely report success before knowing our dispatch routine has finished.
Such behavior might be caused by other external software like anti-viruses suspending threads or slowing down the computer in other means.

My proposed solution:
Create a waitable event in usermode with CreateEvent, wait for it to get signaled using WaitForSingleObject and finally fire this event from the fake dispatch routine using KeSetEvent.