Re: How to remove a named pipe (win32)
"Nuno Magalhaes" <nunommagalhaes@hotmail.com> wrote in message
news:1169569374.156365.201370@v45g2000cwv.googlegroups.com...
I'm experiencing some difficulties programming with named pipes. I've
done a library in C that basically has the methods open, read/write and
close.
Sometimes the open procedure hangs on (1) because there is already an
opened named pipe.
Is it possible to force a named pipe removal before we do a
CreateNamedPipe?
The open procedure is done as shown below:
First, you should never have to guess about the cause of an error in Win32.
When an operation fails, calling GetLastError() immediately afterward should
tell you what is wrong.
Second, in case it's not clear, pipe servers permit as many simultaneous
clients as was specified when the pipe was opened up to a maximum of 255
(resources permitting). In order for this to work well, pipe servers which
are intended to scale tend to perform I/O operations asynchronously and have
at least one outstanding ConnectNamedPipe() at all times.
Finally, if your pipe server is not able to satisfy clients in a timely way,
clients can call WaitnamedPipe() so that they don't spin their wheels with
unnecessary polling.
Regards,
Will
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