From: dvdeug@x8b4e53cd.dhcp.okstate.edu (David Starner)
Subject: Re: Handling signals in ADA
Date: 15 Mar 2001 18:48:09 GMT
Date: 2001-03-15T18:48:09+00:00 [thread overview]
Message-ID: <98r2p9$9ic1@news.cis.okstate.edu> (raw)
In-Reply-To: 3AADFFCF.691F1F8@labe.felk.cvut.cz
On Tue, 13 Mar 2001 12:09:03 +0100, Tomas Hlavaty
<hlavaty@labe.felk.cvut.cz> wrote:
>Hi, could you help me with translating following C code to ADA?
Someone else posted a literal translation*. The question is, what do you
want to do? For most Ada programming, signals aren't the right tool for
the job. Tasks and exceptions can handle many signal uses; others may
take a little more thought to rewrite, but it's usually better to
program in the language you're programming in, than force a design for C
into Ada. (As a side note, SIGUSR1 is not always safe to use in an Ada
program - GNAT in the standard (ACT) configuration uses it for
threading.)
However, sometimes the external enviroment hands a signal you have to
handle. In which case, my solution would be to write a little C
encapsulating all the signal details and call it. You could also check
out the Ada packages listed below, or look up Florist, a free Ada Posix
binding.
* To properly use SIGUSR1, you could write a one line C function
returning SIGUSR1 and import it, or write a compile time program that
finds the value of SIGUSR1 and includes it. If you're using GNAT, you
should check out Ada.Interrupts.Names and System.OS_Interface, which
also tell you all the reserved signals.
--
David Starner - dstarner98@aasaa.ofe.org
Pointless website: http://dvdeug.dhis.org
"I don't care if Bill personally has my name and reads my email and
laughs at me. In fact, I'd be rather honored." - Joseph_Greg
next prev parent reply other threads:[~2001-03-15 18:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-13 11:09 Handling signals in ADA Tomas Hlavaty
2001-03-15 5:21 ` DuckE
2001-03-15 18:48 ` David Starner [this message]
2001-03-16 17:17 ` Robert A Duff
2001-03-15 22:05 ` Florian Weimer
2001-03-15 23:42 ` Ed Falis
2001-03-16 1:27 ` David C. Hoos, Sr.
2001-03-16 1:48 ` Jeffrey Carter
2001-03-16 21:06 ` Florian Weimer
2001-03-17 1:00 ` David C. Hoos, Sr.
2001-03-16 3:06 ` (null)
2001-03-16 13:10 ` Tomas Hlavaty
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