On Dec 28, 2003, at 2:57 AM, Artem Koutchine wrote: [..]
[..]In order not to waste CPU time and have server do something usufull (like calculating something) i tried handling SIGIO, so, when data is available on incoming connection i handle and when there is no data, server does its own job. However, it figures, that when i added fcntl(STDIN, F_SETFL, O_ASYNC|O_NONBLOCK); sleep(5) stopped working right. It does not wait for 5 seconds any longer, but actually for about 1/3 second and fully ignores the sleep time a specify (you can run the server and connect to it using telnet and see for yourself). I could not find any info on sleep (SIGALRM) messing with SIGIO and O_ASYNC mode. Any ideas what's going on and how to fix this?
this sounds like one of the 'bugs' in perl 5.8.0 and/or 5.8.1 that is suppose to be fixed in 5.8.2 - One strategy would be to create a SIGALRM handler that would set a flag value you could check to see if your alarm went off and was handled.
ciao drieux
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