Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!zaphod.mps.ohio-state.edu!rpi!batcomputer!cornell!ken
From: ken@gvax.cs.cornell.edu (Ken Birman)
Newsgroups: comp.sys.isis
Subject: isis_accept_events(ISIS_BLOCK): bug fix
Message-ID: <34783@cornell.UUCP>
Date: 2 Dec 89 01:21:37 GMT
Sender: nobody@cornell.UUCP
Reply-To: ken@cs.cornell.edu (Ken Birman)
Distribution: comp
Organization: Cornell Univ. CS Dept, Ithaca NY
Lines: 17

I tracked down and fixed the bug that caused isis_accept_events(ISIS_BLOCK)
to block indefinitely, even if an event occurs.

Patches to clib/cl_isis.c:

LINE		          CONTENTS (OLD, NEW)
old 596	         int set_scheduler = 0, ran = 0;
new 596	         int set_scheduler = 0, ran = 0, sync_count = 0;

new 607	         if(t_waiting(&accept_events))
new 608	             ++sync_count;

old 711:	if(ran == 0 && async_accept_count)
old 712:	    t_sig_all(&accept_events, 0);

new 713:	if((ran == 0 && async_accept_count) || (ran && sync_count))
new 714:	    t_sig_all(&accept_events, 0);