Why does RpcServerUseProtseqEp cause system error 1008?

[Shwu]

Hello,

My Windows service application implements a RPC server function. After it
calls RpcServerUseProtseqEp, GetLastError returns 1008: "An attempt was made
to reference a token that does not exist." But the function it self returns
RPC_S_OK.
What could be the reason that the function RpcServerUseProtseqEp causes a
system error 1008?

Thanks for any input,

Shangwu

[Skywing [MVP]]

The return value of GetLastError is undefined after RpcServerUseProtseqEp.
Unless a function specifies that you may call GetLastError to get meaningful
information, you cannot do so (most Rpc* APIs do not, FYI). Furthermore,
most such functions that do set a last error value only result in a
meaningful last error value when they fail, and not when they succeed.
--
Ken Johnson (Skywing)
Windows SDK MVP
http://www.nynaeve.net

Post by Shwu
Hello,
My Windows service application implements a RPC server function. After it
calls RpcServerUseProtseqEp, GetLastError returns 1008: "An attempt was
made to reference a token that does not exist." But the function it self
returns RPC_S_OK.
What could be the reason that the function RpcServerUseProtseqEp causes a
system error 1008?
Thanks for any input,
Shangwu

[Shwu]

Ken,

Thank you so much for your comment. The reason I am concerning about the
error is that it always causes the service manager showing a popup error
message "error 1008: An attempt was made to reference a token that does not
exist" when my service program is stopped from the service control panel. I
have to call SetLastError(0) to clear the error code before the service
quits in order to stop the annoy error popup.
I wonder something is really wrong after the call of RpcServerUseProtseqEp.

Shangwu

Post by Skywing [MVP]
The return value of GetLastError is undefined after RpcServerUseProtseqEp.
Unless a function specifies that you may call GetLastError to get
meaningful information, you cannot do so (most Rpc* APIs do not, FYI).
Furthermore, most such functions that do set a last error value only
result in a meaningful last error value when they fail, and not when they
succeed.
--
Ken Johnson (Skywing)
Windows SDK MVP
http://www.nynaeve.net

Post by Shwu
Hello,
My Windows service application implements a RPC server function. After
it calls RpcServerUseProtseqEp, GetLastError returns 1008: "An attempt
was made to reference a token that does not exist." But the function it
self returns RPC_S_OK.
What could be the reason that the function RpcServerUseProtseqEp causes a
system error 1008?
Thanks for any input,
Shangwu