[#13775] Problems with racc rule definitions — Michael Neumann <neumann@...>

15 messages 2001/04/17
[#13795] Re: Problems with racc rule definitions — Minero Aoki <aamine@...> 2001/04/18

Hi,

[#13940] From Guido, with love... — Dave Thomas <Dave@...>

52 messages 2001/04/20

[#13953] regexp — James Ponder <james@...>

Hi, I'm new to ruby and am coming from a perl background - therefore I

19 messages 2001/04/21

[#14033] Distributed Ruby and heterogeneous networks — harryo@... (Harry Ohlsen)

I wrote my first small distributed application yesterday and it worked

15 messages 2001/04/22

[#14040] RCR: getClassFromString method — ptkwt@...1.aracnet.com (Phil Tomson)

It would be nice to have a function that returns a class type given a

20 messages 2001/04/22

[#14130] Re: Ruby mascot proposal — "Conrad Schneiker" <schneik@...>

Guy N. Hurst wrote:

21 messages 2001/04/24
[#14148] Re: Ruby mascot proposal — Stephen White <spwhite@...> 2001/04/24

On Tue, 24 Apr 2001, Conrad Schneiker wrote:

[#14188] Re: Ruby mascot proposal — matz@... (Yukihiro Matsumoto) 2001/04/25

Hi,

[#14193] Re: Ruby mascot proposal — "W. Kent Starr" <elderburn@...> 2001/04/25

On Tuesday 24 April 2001 23:02, Yukihiro Matsumoto wrote:

[#14138] Re: python on the smalltalk VM — Conrad Schneiker <schneik@...>

FYI: Thought this might be of interest to the JRuby and Ruby/GUI folks.

27 messages 2001/04/24
[#14153] Re: python on the smalltalk VM — Andrew Kuchling <akuchlin@...> 2001/04/24

Conrad Schneiker <schneik@austin.ibm.com> writes:

[#14154] array#flatten! question — Jim Freeze <jim@...> 2001/04/24

Hello.

[#14159] Can I insert into an array — Jim Freeze <jim@...> 2001/04/24

Ok, this may be a dumb question, but, is it possible to insert into an

[#14162] Re: Can I insert into an array — Dave Thomas <Dave@...> 2001/04/24

Jim Freeze <jim@freeze.org> writes:

[#14289] RCR: Array#insert — Shugo Maeda <shugo@...> 2001/04/27

At Wed, 25 Apr 2001 01:28:36 +0900,

[#14221] An or in an if. — Tim Pettman <tjp@...>

Hi there,

18 messages 2001/04/25

[#14267] Re: Ruby mascot proposal — "Conrad Schneiker" <schneik@...>

Danny van Bruggen,

16 messages 2001/04/26

[#14452] How to do it the Ruby-way 3 — Stefan Matthias Aust <sma@3plus4.de>

First a question: Why is

21 messages 2001/04/30

[ruby-talk:14406] Re: [REPOST] Retrieving current signal handler without altering it

From: Lloyd Zusman <ljz@...>
Date: 2001-04-29 15:10:09 UTC
List: ruby-talk #14406
"David S." <dgjs@acm.org> writes:

> On Sun, Apr 29, 2001 at 01:40:04PM +0900, Phil Tomson wrote:
> > >
> > >I'd like to retrieve the current handler for a given signal without
> > >changing it.  I know that I can do this:
> > >
> > How about: 
> > 
> >   currentHandler = trap('HUP','DEFAULT')
> > 
> > I think that's what you're looking for.
> 
> That command will set the handler to the default.  If that's not what you
> want, you have to restore it with
> 
> 	trap('HUP', currentHandler)
> 
> which introduces a race condition.  Without an interface to 'sigaction', 
> I don't think you can safely retrieve a signal handler.

Well, in Perl, you can do this ...

  $currentHandler = $SIG{'HUP'};

The Perl interpreter ensures that the %SIG hash always contains
references to the current handler routine for a given signal, if there
is one.  Could such a thing be added to Ruby?


> David S.


-- 
 Lloyd Zusman
 ljz@asfast.com

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