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From: brent@poseidon.UUCP (Brent P. Callaghan)
Newsgroups: net.unix-wizards
Subject: Re: Checking for waiting characters
Message-ID: <1454@poseidon.UUCP>
Date: Mon, 12-May-86 15:22:11 EDT
Article-I.D.: poseidon.1454
Posted: Mon May 12 15:22:11 1986
Date-Received: Tue, 13-May-86 09:07:06 EDT
References: <470@brl-smoke.ARPA>
Organization: AT&T Information Systems, Lincroft NJ
Lines: 18

Try this:

   jmp_buf env ;

   ringgg () { longjmp(env,1) ; }
     :
     :
   signal(SIGALRM, ringgg) ;
   alarm(timeout) ;

   nchars = setjmp(env)==0 ? read(tty, buff, BUFSZ) : 0 ;
   
-- 
				
Made in New Zealand -->		Brent Callaghan
				AT&T Information Systems, Lincroft, NJ
				{ihnp4|mtuxo|pegasus}!poseidon!brent
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