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From: chet@cwns1.CWRU.EDU (Chet Ramey)
Newsgroups: comp.sys.encore
Subject: Re: Problems with flush ?
Message-ID: <1990Jun5.005224.14406@usenet.ins.cwru.edu>
Date: 5 Jun 90 00:52:24 GMT
References: <9006011518.AA06239@jones.cis.ohio-state.edu>
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Organization: Case Western Reserve Univ. Cleveland, Ohio, (USA)
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In article <9006011518.AA06239@jones.cis.ohio-state.edu> george@cis.ohio-state.edu writes:
>
>Anybody got a clue as to why the input buffers were not flushed ? Is
>there a known problem with TIOCFLUSH ?

No, you used it wrong.  The third argument is a pointer to an int, and is
dereferenced before being checked.  That might be your problem.

>  strings /Umax.image | grep Umax
>  Umax 4.3 (R4_0.0) APC NFS Mon Mar 19 15:07:10 1990

This code works on an IBM RT running 4.3 BSD; I think it will work for you.

#include <sys/ioctl.h>
#include <sys/file.h>

main(argc, argv)
int     argc;
char    **argv;
{
        int     fr = FREAD;

        if (ioctl(0, TIOCFLUSH, &fr) != 0)
                perror("ioctl: TIOCFLUSH");
}

Chet
-- 
Chet Ramey				"...but worst of all, young man,
Network Services Group			 you've got Industrial Disease!"
Case Western Reserve University	
chet@ins.CWRU.Edu