Thanks ... I hoped for the existence of an "Error Code" for this - looks like a
wee bit more creativeness required on my part :)
Regards
Paul McKenzie
=========================
Paul McKenzie
Jetbet II Developer
=========================
[EMAIL PROTECTED]
Ph: (04) 576-6822
T.A.B. National Office
106-110 Jackson Street
Petone
New Zealand
____________________Reply Separator____________________
Subject: RE: RE: [DUG]: Process termination
Author: [EMAIL PROTECTED]
Date: 16/05/2001 14:44
Paul,
> So there is no way to tell (via GetExitCodeProcess) when NT has
> released all the
> resources...
Actually NT is notorious for keeping resources open. This is especially a
problem if the process opened the resources for read/write. In that case,
NT usually keeps the resource locked for a few seconds after the process
terminates (to support delayed writing). There was a M$ knowledge base
article (can't remember the number) that spoke of a set of registry entries
to force NT to close resources, but if you are writing software, I guess
you
cannot assume that those entries will be set correctly.
The problem is worse if the resources are on a network. Sometimes, NT
"forgets" to close the resource all together!
> Wouldn't the same type of thing also occur for the WaitForSingleObject
> WaitForSingleObjectEx ?
The same problem exists for WaitForSingleObject. The reason I suggest them
is I normally create a thread that calls WaitForSingleObject. It leaves
the
main thread to do other stuff and not having to be bothered with polling
GetExitCodeProcess.
Regards,
Dennis.
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, 16 May 2001 14:04
> To: Multiple recipients of list delphi
> Subject: Re:RE: [DUG]: Process termination
>
>
> So there is no way to tell (via GetExitCodeProcess) when NT has
> released all the
> resources...
> Wouldn't the same type of thing also occur for the WaitForSingleObject
> WaitForSingleObjectEx ?
>
> Regards
> Paul McKenzie
>
> =========================
> Paul McKenzie
> Jetbet II Developer
> =========================
> [EMAIL PROTECTED]
> Ph: (04) 576-6822
>
> T.A.B. National Office
> 106-110 Jackson Street
> Petone
> New Zealand
>
>
>
> ____________________Reply Separator____________________
> Subject: RE: [DUG]: Process termination
> Author: [EMAIL PROTECTED]
> Date: 16/05/2001 13:50
>
>
>
>
> A success from GetExitCodeProcess does not always guarantee
> that NT is done
> with the process' resources. For example, NT may still keep
> the EXE file
> locked for a short while.
>
> BTW, a better function to use is WaitForSingleObject /
> WaitForSingleObjectEx. Pass in the process handle. The object is
> signalled
> when the process is terminated.
>
> Regards,
> Dennis.
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, 16 May 2001 11:27
> To: Multiple recipients of list delphi
> Subject: [DUG]: Process termination
>
>
> Hi All
>
> When a Process is terminating and you are waiting for the process
> to complete
> its Termination, i.e. waiting on GetExitCodeProcess <> STILL_ACTIVE.
> Does anyone know if there is a temporary state ("error code")
returned by
> GetExitCodeProcess, between STILL_ACTIVE and the Process Termination
fully
> Completed.
> Something like "Terminating" ???
>
> What we are doing is running the process, waiting for it to
> terminate, and then
> closing the handles for the Thread and Process, and deleting the
EXE.
> Every now and then the close handle fails (The GetExitCodeProcess
> succeeds) and
> the delete fails.
>
> any help much appreciated...
>
>
> Regards
> Paul McKenzie
>
> =========================
> Paul McKenzie
> Jetbet II Developer
> =========================
> [EMAIL PROTECTED]
> Ph: (04) 576-6822
>
> T.A.B. National Office
> 106-110 Jackson Street
> Petone
> New Zealand
>
>
>
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