Need help with SIGALRM/ualarm

[Ronald S. Woan]

In article <13211 at ogicse.ogi.edu>, pturner at ese.ese.ogi.edu (Paul
Turner) writes:
Paul> I'm trying to do some animation on an RS6000 (a 320 w
Paul> AIX 3.1 plus the 3001 update) and I'm having problems
Paul> with the alarm call. The following code fragment performs
Paul> exactly as I expected on a Sun w SunOS 4.0 but fails on the
Paul> RS6000 with a single call to the alarm signal handler followed
Paul> by the termination of the program.

Isn't this just the difference between System V (also pre 4.2 BSD) and
BSD 4.2/4.3 signals, i.e.  you need to reset the signal by hand in the
signal handler, i.e.:

void animate()
{
    signal(SIGALRM, SIG_IGN);
    printf("Called\n");
    signal(SIGALRM, animate);
}

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