Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site psuvax.UUCP Path: utzoo!linus!decvax!harpo!seismo!presby!burdvax!psuvax!zaccone From: zaccone@psuvax.UUCP Newsgroups: net.unix-wizards Subject: problems with sigset, sighold and sigrelse. Message-ID: <185@psuvax.UUCP> Date: Thu, 4-Aug-83 14:47:23 EDT Article-I.D.: psuvax.185 Posted: Thu Aug 4 14:47:23 1983 Date-Received: Sat, 6-Aug-83 07:59:00 EDT Organization: Penn. State Univ. Lines: 28 In an earlier article, I described some problems that I was having with sigset, sighold and sigrelse. Since I wrote that article, I've discovered that I don't really understand how these routines work. Therefore, I'm going to restate my problem and ask for more general help. I'm trying to write to a device (via 'write') with both TANDEM and RAW modes set. I would also like to catch the SIGINT signal, but I don't want any I/O operation to be interrupted. Right now, I'm trying something like this: sigset(SIGINT, fn); sighold(SIGINT); some code with writes in it sigrelse(SIGINT); Even with this code, some write operation gets interrupted and does not return normally (# of bytes attempted != # actually written). Why is this happening? What am I doing wrong? Rick Zaccone Penn State University {allegra, burdvax}!psuvax!zaccone