[#45942] win32ole and excel — Martin Stannard <martin@...>

Hi,

19 messages 2002/08/01

[#45948] "gets" blocking process not thread (in Windows only) — Matt Pattison <mfp@...>

The problem with my program is that (in Windows) gets seems to block the entire

13 messages 2002/08/01

[#46030] IO.readlines is slow ? — "Shashank Date" <ADATE@...>

I really like the convenience of doing:

18 messages 2002/08/02

[#46072] How to Load Script from a C Extension? — William Djaja Tjokroaminata <billtj@...>

Hi,

20 messages 2002/08/02

[#46107] embed or swig? — ptkwt@...1.aracnet.com (Phil Tomson)

I'm working a C++ project for a contract I'm doing. Originally, the

21 messages 2002/08/03

[#46128] Assoc Class (Hash Pairs) — Tom Sawyer <transami@...>

i've been thinking about posting this as an RCR.

28 messages 2002/08/03

[#46136] Should this work? — "Hal E. Fulton" <hal9000@...>

Should multiple assignment work for the

17 messages 2002/08/03

[#46192] Detecting when an instance variable is created/set — Harry Ohlsen <harryo@...>

Imagine we have a class like ...

22 messages 2002/08/04
[#46198] Re: Detecting when an instance variable is created/set — Tom Sawyer <transami@...> 2002/08/04

On Sun, 2002-08-04 at 06:03, Harry Ohlsen wrote:

[#46207] Re: Detecting when an instance variable is created/set — Harry Ohlsen <harryo@...> 2002/08/04

> > Can I write a method (of class Object or Kernel, perhaps) that will be

[#46226] Re: Detecting when an instance variable is created/set — Massimiliano Mirra <list@...> 2002/08/04

On Sun, Aug 04, 2002 at 10:32:44PM +0900, Harry Ohlsen wrote:

[#46264] Dynamic creation of classes and methods — Tomasz Wegrzanowski <taw@...>

I want to create classes and methods on fly.

11 messages 2002/08/05

[#46341] More questions on automation from na誰ve Windows user. — Chris Gehlker <gehlker@...>

Hi all,

15 messages 2002/08/05

[#46356] Coding challenge (on Ruby Garden) — David Alan Black <dblack@...>

Hello --

47 messages 2002/08/06

[#46357] Compiling Ruby to Native Code? — web2ed@... (Edward Wilson)

Having looked at OCaml, after following a post to this group, one

20 messages 2002/08/06

[#46426] Is There an Inverse of 'rb_define_method'? — William Djaja Tjokroaminata <billtj@...>

Hi,

15 messages 2002/08/06

[#46442] COM on Unix? — Chris Gehlker <gehlker@...>

As part of my crusade to make Ruby an automation language I read up a little

12 messages 2002/08/06

[#46443] Dup and Clone — "Justin Johnson" <justinj@...>

Could anyone kindly point out the difference between 'dup' and 'clone'?

17 messages 2002/08/06

[#46475] Named paramters again — "Justin Johnson" <justinj@...>

26 messages 2002/08/07
[#46534] Re: Named paramters again — "Gavin Sinclair" <gsinclair@...> 2002/08/07

[#46537] RE: Named paramters again — "Rich Kilmer" <rich@...> 2002/08/07

[#46550] GUI's and the Rouge, Part IV — Kero van Gelder <kero@...>

Funny, two savannah accounts for the same objective:

12 messages 2002/08/07

[#46565] Re: Unicode in Ruby now? — "Marcin 'Qrczak' Kowalczyk" <qrczak@...>

Wed, 7 Aug 2002 16:41:18 +0900, Curt Sampson <cjs@cynic.net> pisze:

12 messages 2002/08/07

[#46732] ambiguity between local variable assignment and writter method — Tom Sawyer <transami@...>

does anyone else find it annoying that local variable assignment is

56 messages 2002/08/09
[#46788] Re: ambiguity between local variable assignment and writter method — dblack@... 2002/08/10

Hi --

[#46791] Re: ambiguity between local variable assignment and writter method — Tom Sawyer <transami@...> 2002/08/10

On Fri, 2002-08-09 at 22:50, dblack@candle.superlink.net wrote:

[#46794] Re: ambiguity between local variable assignment and writter method — dblack@... 2002/08/10

Hi --

[#46734] Re: ambiguity between local variable assignment and writter method — Paul Brannan <pbrannan@...> 2002/08/09

On Sat, Aug 10, 2002 at 03:00:28AM +0900, Tom Sawyer wrote:

[#46737] Re: ambiguity between local variable assignment and writter method — Tom Sawyer <transami@...> 2002/08/09

On Fri, 2002-08-09 at 12:05, Paul Brannan wrote:

[#46739] Re: ambiguity between local variable assignment and writter method — Dave Thomas <Dave@...> 2002/08/09

Tom Sawyer <transami@transami.net> writes:

[#46741] Re: ambiguity between local variable assignment and writter method — GOTO Kentaro <gotoken@...> 2002/08/09

At Sat, 10 Aug 2002 03:44:45 +0900,

[#46748] Re: ambiguity between local variable assignment and writter method — Dave Thomas <Dave@...> 2002/08/09

GOTO Kentaro <gotoken@notwork.org> writes:

[#46753] Re: ambiguity between local variable assignment and writter method — Tom Sawyer <transami@...> 2002/08/09

On Fri, 2002-08-09 at 13:30, Dave Thomas wrote:

[#46841] Ah, I'm finally back from Japan ... — Dossy <dossy@...>

Not like anyone cares (or noticed) but my two week stay in Japan

12 messages 2002/08/10

[#46875] To be a Module, or not to be... — Holden Glova <dsafari@...>

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12 messages 2002/08/11

[#46911] Choosing ruby? — Rhymes <raims@...>

27 messages 2002/08/11

[#46957] Handling forms on database driven websites — Philip Mak <pmak@...>

Ever since I learned Perl, Ruby and MySQL, I've built several database

10 messages 2002/08/12

[#47000] Primary Key Hash help — "Chris Morris" <chrismo@...>

I have a huge data file with rows like this:

17 messages 2002/08/12

[#47134] Data_Make_Struct Considered Dangerous? — William Djaja Tjokroaminata <billtj@...>

Hi,

39 messages 2002/08/13

[#47212] Ruby Weekly News — Dave@...

21 messages 2002/08/14

[#47292] Thought question: Where does "new" come from? — "Hal E. Fulton" <hal9000@...>

I've been brooding again on the circularities

28 messages 2002/08/15
[#47342] Re: Thought question: Where does "new" come from? — "Hal E. Fulton" <hal9000@...> 2002/08/15

----- Original Message -----

[#47346] Re: Thought question: Where does "new" come from? — dblack@... 2002/08/15

Hi --

[#47365] Re: Thought question: Where does "new" come from? — "MikkelFJ" <mikkelfj-anti-spam@...> 2002/08/15

[#47369] Re: Thought question: Where does "new" come from? — dblack@... 2002/08/15

Hello --

[#47372] Re: Thought question: Where does "new" come from? — "MikkelFJ" <mikkelfj-anti-spam@...> 2002/08/15

[#47377] Re: Thought question: Where does "new" come from? — dblack@... 2002/08/16

Hi --

[#47344] eruby editor — "Kyle Wilson" <kyle.wilson@...>

Hello. I was wondering if anyone knows of a text editor which will

17 messages 2002/08/15

[#47440] Help with a segv in mod_ruby — Dave Thomas <Dave@...>

14 messages 2002/08/16

[#47461] How do I dup file descriptors in ruby? (diverting STDERR) — "Richard A. Ryan" <ryan@...>

Hello,

12 messages 2002/08/16

[#47464] IDE vs. editor — Holden Glova <dsafari@...>

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43 messages 2002/08/16

[#47547] Re: What Ruby needs. — "Shashank Date" <ADATE@...>

I do not have any problem with item 1) on your wish list as long as I don't

13 messages 2002/08/18

[#47559] Ruby Bot — Giuseppe Bilotta <bilotta78@...>

Hello,

14 messages 2002/08/18

[#47643] thread control — "Shashank Date" <ADATE@...>

I am trying to write a ruby script (Ruby 1.7.2 mswin32) which does the

21 messages 2002/08/20

[#47695] What makes a "good" Ruby extension? — Tim Hunter <cyclists@...>

So I'm reading the "Comparing Gui Toolkits" wiki page

14 messages 2002/08/20

[#47749] What New Language After Ruby? — William Djaja Tjokroaminata <billtj@...>

To Andrew Hunt and David Thomas:

74 messages 2002/08/21
[#47754] Re: What New Language After Ruby? — Wilkes Joiner <boognish23@...> 2002/08/21

Although activity seems to have died down, here are some links

[#47817] A Repeat: New Language After Ruby? — William Djaja Tjokroaminata <billtj@...>

Hi,

54 messages 2002/08/21
[#47820] RE: A Repeat: New Language After Ruby? — " JamesBritt" <james@...> 2002/08/21

[#47918] Win32 Scripting — Sean Middleditch <elanthis@...>

Hi,

13 messages 2002/08/22

[#48035] Why Ruby Uses Mark-and-Sweep GC? — William Djaja Tjokroaminata <billtj@...>

Hi,

39 messages 2002/08/23

[#48062] Ruby and Judy — Joseph McDonald <joe@...>

29 messages 2002/08/23

[#48082] Distributed Object Container — junderdown@... (Jason Underdown)

Is anyone out there in the Ruby community working on an object

23 messages 2002/08/24
[#48185] Re: Distributed Object Container — "Gavin Sinclair" <gsinclair@...> 2002/08/26

----- Original Message -----

[#48223] Ruby Based App Server — junderdown@... (Jason Underdown)

I posted a similar question a few days ago, but didn't get any

21 messages 2002/08/26

[#48264] Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — itsnewsforme@... (M S)

A big complaint from people looking into Ruby is that they don't see

36 messages 2002/08/27
[#48292] Re: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — ts <decoux@...> 2002/08/27

>>>>> "M" == M S <itsnewsforme@yahoo.ca> writes:

[#48296] RE: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — "Rich Kilmer" <rich@...> 2002/08/27

Actually, it would be nice to have them online, but not necessarily

[#48336] Re: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — Massimiliano Mirra <list@...> 2002/08/27

On Tue, Aug 27, 2002 at 09:39:32PM +0900, Rich Kilmer wrote:

[#48358] RE: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — "Rich Kilmer" <rich@...> 2002/08/28

http://kt-www.jaist.ac.jp/~ttate/ruby/ruby-dl.html

[#48362] RE: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby) — Tom Sawyer <transami@...> 2002/08/28

On Tue, 2002-08-27 at 19:32, Rich Kilmer wrote:

[#48367] RE: Ruby developers: help push RPKG development and usage forward!!(it is like CPAN.pm, only Ruby) — "Rich Kilmer" <rich@...> 2002/08/28

You can just install it in another directory and then go to that

[#48369] RE: Ruby developers: help push RPKG development and usage forward!!(it is like CPAN.pm, only Ruby) — Tom Sawyer <transami@...> 2002/08/28

uh, sorry, how do i get 1.7.2? i tried anonymous cvs but it said NO. did

[#48371] RE: Ruby developers: help push RPKG development and usageforward!!(it is like CPAN.pm, only Ruby) — "Rich Kilmer" <rich@...> 2002/08/28

Nightly CVS snapshot:

[#48274] ANN: RJudy-0.1 - Judy Arrays for Ruby — Lyle Johnson <lyle@...>

All,

17 messages 2002/08/27

[#48477] Newbie converting brain from perl — William Pietri <william-news-383910@...>

20 messages 2002/08/28

[#48544] Best GC for Ruby? — "Justin Johnson" <justinj@...>

34 messages 2002/08/29

[#48573] FXRuby Threading Problem Solved? — Lyle Johnson <lyle@...>

All,

14 messages 2002/08/29

[#48584] suggestions to the Ruby community — stibbs <stibbs@...>

Hi, first i would like to state that i absolutely love Ruby more than any

85 messages 2002/08/29
[#48923] Re: suggestions to the Ruby community — <bbense+comp.lang.ruby.Sep.03.02@...> 2002/09/03

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[#48930] RE: suggestions to the Ruby community — " JamesBritt" <james@...> 2002/09/03

> >I was surprised just now to find that there is no absolute requirement

[#49017] Re: suggestions to the Ruby community — <bbense+comp.lang.ruby.Sep.04.02@...> 2002/09/04

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[#48657] ICFP Programming Contest — Alan Chen <alan@...>

http://icfpcontest.cse.ogi.edu/task.html

12 messages 2002/08/30

[#48705] Ruby aesthetics — vegai@...

Hello. I've been checking into python lately quite a lot, and I

192 messages 2002/08/31
[#49010] Re: Ruby aesthetics — "Hal E. Fulton" <hal9000@...> 2002/09/04

----- Original Message -----

[#49100] Re: Ruby aesthetics — Paul Prescod <paulp@...> 2002/09/05

On Thu, 5 Sep 2002, Hal E. Fulton wrote:

[#49112] Re: Ruby aesthetics — William Djaja Tjokroaminata <billtj@...> 2002/09/05

Hi,

[#49154] Re: Ruby aesthetics — Paul Prescod <paulp@...> 2002/09/05

On Thu, 5 Sep 2002, William Djaja Tjokroaminata wrote:

[#49161] Re: Ruby aesthetics — Christian Szegedy <szegedy@...> 2002/09/05

Paul Prescod wrote:

[#49173] Re: Ruby aesthetics — William Djaja Tjokroaminata <billtj@...> 2002/09/05

Hi,

[#49183] Re: Ruby aesthetics — <paul@...> 2002/09/05

On Fri, 6 Sep 2002, William Djaja Tjokroaminata wrote:

[#49189] Re: Ruby aesthetics — William Djaja Tjokroaminata <billtj@...> 2002/09/05

I think we have communicated very well; I agree with all you said. May I

[#49191] Re: Ruby aesthetics — <paul@...> 2002/09/05

On Fri, 6 Sep 2002, William Djaja Tjokroaminata wrote:

[#49272] Re: Ruby aesthetics — William Djaja Tjokroaminata <billtj@...> 2002/09/06

Hi Matz,

[#49293] Re: Ruby aesthetics — matz@... (Yukihiro Matsumoto) 2002/09/06

Hi,

[#49312] Re: Ruby aesthetics — <paul@...> 2002/09/06

On Sat, 7 Sep 2002, Yukihiro Matsumoto wrote:

[#49321] Re: Ruby aesthetics — dblack@... 2002/09/06

Hello --

Re: Data_Make_Struct Considered Dangerous?

From: Reimer Behrends <behrends@...>
Date: 2002-08-20 16:30:30 UTC
List: ruby-talk #47672
William Djaja Tjokroaminata (billtj@y.glue.umd.edu) wrote:
>  Reimer Behrends <behrends@cse.msu.edu> wrote:
>  --------------------------------------------------
> > This is inaccurate. Ruby only knows about the memory allocated via
> > ALLOC(), not of memory allocated via malloc(). So, Ruby's heuristic
> > as to when to start the next GC might be way off, and you might
> > use more physical memory than necessary. In the extreme case, Ruby
> > would not start garbage collecting before you run out of swap space.
>  --------------------------------------------------
>  
>  Please see my response to Joel.  Isn't it that the maximum possible wasted
>  memory is determined by GC_MALLOC_LIMIT, which has default values of 8
>  megabytes?  As an example, suppose I have a total of 128 Mbytes of
>  memory.  My Ruby memory is 16.1 Mbytes and my C memory is 64
>  Mbytes.  Isn't it that the total used memory will be 24 + 64 = 88 Mbytes?

A problem occurs if, say, you have an Image class that allocates memory
for the pixel data using malloc():

for i = 1..1000 do
  img = Image.load(directory + i.to_s + ".png")
end

Assuming that each image occupies, say, 1 MB in memory, the program
allocates roughly 1 GB of memory. Yet as far as Ruby knows, only a few
kilobytes have been requested, so no garbage collection is initiated
and the program starts chewing through all the available swap space,
even though there is plenty of garbage to collect.

That may not be a problem with your specific application, but your
overall argument that ALLOC() can generally be replaced by malloc() does
not work, because memory may not be freed in a timely fashion. It sort
of works if the malloced parts are small relative to object size,
essentially increasing the amount of garbage that can exist in the heap
by a proportional factor.

In a nutshell, use of malloc() instead of ALLOC() can break the garbage
collection heuristic.

[...]
>  --------------------------------------------------
> > A big flaw in your argument is that you assume that you can always take
> > over the duties of freeing memory yourself. That works if the allocated
> > memory is referenced only by a single object. If the reference gets
> > passed around, you'll essentially find that you're implementing memory
> > management yourself again, trying to find out if the malloc()ed memory
> > is still accessible.
>  --------------------------------------------------
>  
>  Oh yes, because I am writing in C, memory management is part of everyday
>  life;  it is not like that in Ruby or Java.  About the references to Ruby
>  objects, aren't they taken care of by the mark functions?

I am not talking about references _to_ Ruby objects. I am talking about
several Ruby objects sharing the same structure (or part of one) on the
C side. Consider objects with copy-on-write semantics, for instance:
cloning such an object will not create a duplicate of the internal
structure, but the first attempt to modify it will.

>  --------------------------------------------------
> > Note that Data_Wrap_Struct() can initiate garbage collection as well,
> > namely in rb_newobj(). It doesn't really make a difference.
>  --------------------------------------------------
>  
>  Agreed.  The only difference is, we "reduce" the frequency by which the
>  garbage collector is invoked.  With Data_Make_Struct, the allocated memory
>  is the sum of the requested in ALLOC plus that in rb_newobj(); with
>  Data_Wrap_Struct, it is only rb_newobj() alone, which I hope is not too
>  large.

Your original argument was that Data_Make_Struct() is inherently unsafe;
but since Data_Wrap_Struct() can trigger a garbage collection as well,
there should be no difference in kind, just in degree. Efficiency is
another matter (note also that you may be paying the price of wasted
memory for fewer collection cycles).

			Reimer Behrends

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