Hi all,
If I try to read from a master PTY when no slaves are open I get an IO
error. This would be okay with me, except:
- Select keeps flaging the fd as having read data, resulting in 100% CPU
utilization
and
- The slave end is the controlling TTY for a process, so it is possible
to pick up the slave part again by opening /dev/tty, at which point
reading from the master end, again, behaves as it should.
My main problem is that I have not found a way to wait for the master
end to behave sanely. At the moment, I'm stuck with leaving a dangling
file descriptor on the slave end to the TTY, despite there being nothing
useful done with that file descriptor.
Is this a kernel bug (I have found no documentation for this behavior)?
Is this intentional (then how do I wait without polling for reads from
the master to make sense again)? Am I missing something here?
Thanks,
Shachar
=================================================================
To unsubscribe, send mail to [EMAIL PROTECTED] with
the word "unsubscribe" in the message body, e.g., run the command
echo unsubscribe | mail [EMAIL PROTECTED]
