CODEWITHSUNDEEP
c++windowsnamed-pipes
Idov
Idov

Reputation: 5124

WaitNamedPipe does not wait

I have a pipe (server) on one process waiting for clients with ConnectNamedPipe.
In the client process I'm waiting for the server to start listening with WaitNamedPipe, I gave it a timeout of 5000 ms.
I tried testing the client and even though the server wasn't running, WaitNamedPipe didn't wait at all.

I don't know if any code would be helpful here because I just try to use those methods. But if you want to see something, just tell me what is relevant. :)

oh, and the weird part is that it gave me error code 2: "file not found'.
Isn't it supposed to wait until the pipe is opened (the pipe is the "file", isn't it?)

What can cause WaitNamedPipe not wait?

Upvotes: 0

Views: 3013

Answers (1)

Alex K.
Alex K.

Reputation: 175816

It does not wait for a pipe to come into existence, it waits for an existing pipe to become available (i.e. an outstanding ConnectNamedPipe):

If no instances of the specified named pipe exist, the WaitNamedPipe function returns immediately, regardless of the time-out value.

Upvotes: 2

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