Re: [PATCH 3/5] ntoskrnl.exe: Implement KeReadStateEvent.

[Zebediah Figura]

On 7/15/20 2:59 PM, Derek Lesho wrote:
> Signed-off-by: Derek Lesho
>
> dlls/ntoskrnl.exe/ntoskrnl.exe.spec |  2 +-
>  dlls/ntoskrnl.exe/sync.c            | 22 ++++++++++++++++++++++
>  2 files changed, 23 insertions(+), 1 deletion(-)

Can this be tested?
> diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
> index 34fde20f8a4..b2d7d8b9640 100644
> --- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
> +++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
> @@ -599,7 +599,7 @@
>  @ stdcall KeQueryTickCount(ptr)
>  @ stdcall KeQueryTimeIncrement()
>  @ stub KeRaiseUserException
> -@ stub KeReadStateEvent
> +@ stdcall KeReadStateEvent(ptr)
>  @ stub KeReadStateMutant
>  @ stub KeReadStateMutex
>  @ stub KeReadStateQueue
> diff --git a/dlls/ntoskrnl.exe/sync.c b/dlls/ntoskrnl.exe/sync.c
> index 5e06ab2f2b6..7f19ce7571b 100644
> --- a/dlls/ntoskrnl.exe/sync.c
> +++ b/dlls/ntoskrnl.exe/sync.c
> @@ -311,6 +311,28 @@ void WINAPI KeClearEvent( PRKEVENT event )
>      KeResetEvent( event );
>  }
>
> +/***********************************************************************
> -
> -
>       KeReadStateEvent (NTOSKRNL.EXE.@)
> - */
>
> +LONG WINAPI KeReadStateEvent( PRKEVENT event )
> +{
> - HANDLE handle;
> -
> - TRACE("event %p.\n", event);
> -
> - if (event->Header.WaitListHead.Blink == INVALID_HANDLE_VALUE)
> - {
> -
>    if (!(ObOpenObjectByPointer( event, OBJ_KERNEL_HANDLE, NULL, EVENT_QUERY_STATE, NULL, KernelMode, &handle )))
> -
>    {
> -
>        EVENT_BASIC_INFORMATION event_info;
> -
>        if (!(NtQueryEvent( handle, EventBasicInformation, &event_info, sizeof(event_info), NULL)))
> -
>            event->Header.SignalState = event_info.EventState;
> -
>        NtClose( handle );
> -
>    }
> - }
> - return event->Header.SignalState;
>
> +}
> -
>
> /***********************************************************************
> -
>       KeInitializeSemaphore   (NTOSKRNL.EXE.@)
>
> */