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- From: aakash@hpcupt3.cup.hp.com (Aakash Sahai)
- Date: Thu, 27 Aug 1992 17:32:59 GMT
- Subject: Re: psignal()
- Message-ID: <46520025@hpcupt3.cup.hp.com>
- Organization: Hewlett Packard, Cupertino
- Path: sparky!uunet!cs.utexas.edu!sdd.hp.com!hpscdc!hplextra!hpcc05!hpcuhb!hpcupt3!aakash
- Newsgroups: comp.unix.internals
- References: <1992Aug26.100921.23546@prl.dec.com>
- Lines: 26
-
- > boyd@prl.dec.com (Boyd Roberts) writes :
- >
- > Signals are intended to kill processes, and are
- > not an interprocess communication primitive, although they are often
- > misued in this way.
-
- Oh boy ! I always thought it was the other way round. I wouldn't not have been
- able to write several programs without SIGALRM, SIGUSR1 and SIGUSR2. How about
- the following signals -
-
- SIGCLD death of a child
- SIGPWR power fail
- SIGVTALRM virtual timer alarm
- SIGPROF profiling timer alarm
- SIGIO asynchronous I/O signal
- SIGWINCH window size change
- SIGSTOP stop
- SIGTSTP stop signal generated from keyboard
- SIGCONT continue after stop
- SIGTTIN background read attempted from control terminal
- SIGTTOU background write attempted to control terminal
- SIGURG urgent data arrived on an I/O channel
-
- What should a program receiving such signals do ? Get killed :-?
-
- -- Aakash
-