Hello All!
[ CC me please - I'm not subscribed ]
I have a question which goes to 2.2 kernels times.
But I expect newer kernels do the same.
I have/had a simple issue with multi-threaded programs:
one thread is doing blocking read(fd) or poll({fd}) on
file/socket.
another thread is doing close(fd).
I expected first thread will unblock with some kind
of error - but nope! It is blocked!
Is it expected behaviour?
I was implementing couple of char device
drivers and I was putting wake_up_interruptible()
into close(). Nice feature - but not more.
Does it really matters?
What standards do say about this? - I have none of
them :-(
P. S. Subject looks correct from point of view of bash:
"read() &" and then "close()" does nothing - %1 can only
be killed ;)
--- Regards&Wishes! With respect
--- Ihar "Philips" Filipau and Phil for friends
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MCS/Mathematician - System Programmer
Ihar Filipau
Software entwickler @ SUSS MicroTec Test Systems GmbH,
Suss-Strasse 1, D-01561 Sacka (bei Dresden)
e-mail: ifilipau@sussdd.de tel: +49-(0)-352-4073-327
fax: +49-(0)-352-4073-700 web: http://www.suss.com/
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This archive was generated by hypermail 2b29 : Sun Mar 23 2003 - 22:00:30 EST