[#72642] Advantages of Symbols over constants — Marek Janukowicz <childNOSPAM@...17.ds.pwr.wroc.pl>

11 messages 2003/06/01

[#72732] case of sub! not working — Ian Macdonald <ian@...>

Hi,

27 messages 2003/06/03
[#72734] Re: case of sub! not working — Joel VanderWerf <vjoel@...> 2003/06/03

Ian Macdonald wrote:

[#72744] Re: case of sub! not working — Ian Macdonald <ian@...> 2003/06/03

On Tue 03 Jun 2003 at 10:21:43 +0900, Joel VanderWerf wrote:

[#72769] Re: case of sub! not working — Michael Campbell <michael_s_campbell@...> 2003/06/03

[#72907] Syck 0.35 + YAML.rb 0.60 -- the 1st stable release — why the lucky stiff <ruby-talk@...>

Pleased to announce:

18 messages 2003/06/05
[#75182] Re: Syck 0.35 + YAML.rb 0.60 -- the 1st stable release — Richard Zidlicky <rz@...68k.org> 2003/07/04

On Fri, Jun 06, 2003 at 06:15:58AM +0900, why the lucky stiff wrote:

[#72908] Problem with "require" stmt in "test-first " tutorial — RLMuller@... (Richard)

Hi All,

27 messages 2003/06/05

[#72940] VAPOR 0.06, Transparent Persistence to PostgreSQL — "Oliver M. Bolzer" <oliver@...>

Hi!

22 messages 2003/06/06

[#72975] join block — "Simon Strandgaard" <0bz63fz3m1qt3001@...>

29 messages 2003/06/06

[#72986] multiple blocks or proc arguments to method — itsme213@... (you CAN teach an old dog ...)

I was trying to write a collect_if method:

11 messages 2003/06/07

[#73081] requiring standard libs with save level 1 — Eugene Scripnik <Eugene.Scripnik@...>

I've set up new version of Ruby from CVS and my programs failed to work.

13 messages 2003/06/09
[#73114] Re: requiring standard libs with save level 1 — matz@... (Yukihiro Matsumoto) 2003/06/09

Hi,

[#73134] tcltklib does not get compiled. — John Fletcher <J.P.Fletcher@...>

I have installed ruby 1.6.7 on two computers using Red Hat 8.0 Linux.

14 messages 2003/06/10

[#73148] OT: Regexp question — Dominik Werder <dwerder@...>

Hi all,

25 messages 2003/06/10

[#73215] Rubyx (provisionally named) linux distro. Made by and run by Ruby — Andrew Walrond <andrew@...>

I have developed a little script which creates a simple linux distro

38 messages 2003/06/11

[#73260] Multiple Initialize methods? — "Nick" <nick.robinson@...>

Hi,

21 messages 2003/06/11

[#73283] Ruby advantages over Perl — Marek Janukowicz <childNOSPAM@...17.ds.pwr.wroc.pl>

68 messages 2003/06/11
[#73374] Re: Ruby advantages over Perl — Jason Creighton <androflux@...> 2003/06/12

On Thu, 12 Jun 2003 17:56:02 +0900

[#73356] does each work on a copy? — Rasputin <rasputin@...>

17 messages 2003/06/12

[#73372] Reason for implicit block syntax ? — itsme213@... (you CAN teach an old dog ...)

What is the reason for the implicit block in Ruby invocations?

13 messages 2003/06/12

[#73463] Hispeed String concat — Dominik Werder <dwerder@...>

What is the fastest way to add many small Strings to a big buffer?

17 messages 2003/06/13

[#73503] RaaInstallInRuby petition — ptkwt@...1.aracnet.com (Phil Tomson)

18 messages 2003/06/13

[#73555] I need a code beautifier or formatter — joaopedrosa@... (Joao Pedrosa)

Hello,

13 messages 2003/06/14

[#73600] Get songtitle from Winamp — calvin8@... (Andi Scharfstein)

Hi,

26 messages 2003/06/15
[#73601] Re: Get songtitle from Winamp — Daniel Carrera <dcarrera@...> 2003/06/15

-----BEGIN PGP SIGNED MESSAGE-----

[#73602] Re: Get songtitle from Winamp — Chad Fowler <chadfowler@...> 2003/06/15

It's a Win32API convention meaning "Window Handle".

[#73603] Re: Get songtitle from Winamp — Daniel Carrera <dcarrera@...> 2003/06/15

-----BEGIN PGP SIGNED MESSAGE-----

[#73605] Re: Get songtitle from Winamp — Wesley J Landaker <wjl@...> 2003/06/15

On Sunday 15 June 2003 9:34 am, Daniel Carrera wrote:

[#73609] Re: Get songtitle from Winamp — Daniel Carrera <dcarrera@...> 2003/06/15

-----BEGIN PGP SIGNED MESSAGE-----

[#73640] Standardizing Installers — Tom Clarke <tom@...2i.com>

I was thinking about some of the issues raised involving ruby libraries

16 messages 2003/06/16

[#73663] /BEGIN/ .. /END/ file reading — Wild Karl-Heinz <kh.wild@...>

hello

15 messages 2003/06/16
[#73674] Re: /BEGIN/ .. /END/ file reading — "Robert Klemme" <bob.news@...> 2003/06/16

[#73677] Re: /BEGIN/ .. /END/ file reading — Michael Campbell <michael_s_campbell@...> 2003/06/16

> A range operator with a regexp works like a flip flop (bistable

[#73680] Multiline comments? — "Christoph Tapler" <christoph.tapler@...>

I'm new to Ruby and I'm wondering that there is no possibility to write

38 messages 2003/06/16

[#73781] editor / ide recommentation on Windows — itsme213@... (you CAN teach an old dog ...)

What editor / ide would you recommend for serious Ruby work on

20 messages 2003/06/17

[#73787] Array#push(empty array expanded) => no exception — "Simon Strandgaard" <0bz63fz3m1qt3001@...>

This strange behavier really surprised me..

13 messages 2003/06/17

[#73821] European Ruby Conference — "Hal E. Fulton" <hal9000@...>

I don't think I've mentioned this before, but I

15 messages 2003/06/17

[#73924] Re: TCP/IP protocol and Net::HTTP — "J.Hawkesworth" <J.Hawkesworth@...>

Works for me too.

13 messages 2003/06/19
[#73931] Re: TCP/IP protocol and Net::HTTP — Nigel Gilbert <n.gilbert@...> 2003/06/19

I am beginning to wonder if this problem arises from the MacOS X

[#73943] collect info about ruby-api — "Simon Strandgaard" <0bz63fz3m1qt3001@...>

I have long been longing for a good description of ruby C api.

35 messages 2003/06/19

[#74039] WxRuby status? — ptkwt@...1.aracnet.com (Phil Tomson)

14 messages 2003/06/20
[#74507] Re: WxRuby status? — Richard Kilmer <rich@...> 2003/06/26

Things are progressing great. Kevin Smith has taken the development

[#74070] How to test if a file exists? — Daniel Carrera <dcarrera@...>

-----BEGIN PGP SIGNED MESSAGE-----

12 messages 2003/06/21

[#74096] Exasperated with ruby/tk - anybody successfully using it? — "Richard Browne" <richb@...>

General question: Is ruby/tk still being maintained in 1.7/1.8 or is it

10 messages 2003/06/22

[#74104] String#decorate — martindemello@... (Martin DeMello)

When chaining methods, it'd be neat to have something that was passed

17 messages 2003/06/22

[#74156] Marshal bug? — Anders Borch <spam@...>

Hi!

15 messages 2003/06/23
[#74161] Re: Marshal bug? — Dave Thomas <dave@...> 2003/06/23

Anders Borch wrote:

[#74205] can't find appropriate regexp — "Patrick Zesar" <jonnypichler@...>

spamassassin blocked my previous post :-((((

17 messages 2003/06/23

[#74279] Ruby Developer's Guide - hurt book sale — dennis@... (Dennis Sutch)

Syngress Publishing is having a hurt book sale. Per Syngress

11 messages 2003/06/24

[#74379] protect parents from children — "Simon Strandgaard" <0bz63fz3m1qt3001@...>

I fell into these pitfalls yesterday.. that a child was modifying a parent!

27 messages 2003/06/25

[#74413] Ruby/Java integration through JNI: working implementation — Mauricio Fern疣dez <batsman.geo@...>

14 messages 2003/06/25
[#74436] Re: Ruby/Java integration through JNI: working implementation — D T <tran55555@...> 2003/06/25

Yet An other JRuby ?? :-)

[#74465] DBD for Oracle9i — Jim Cain <list@...>

Hi all. I was looking for a Ruby interface to 9i that would handle all

25 messages 2003/06/25

[#74478] RPM for 1.8.0 — John Carter <john.carter@...>

I would like to get / build a Mandrake 9.1 RPM for Ruby-1.8.0 Preview 3

17 messages 2003/06/26

[#74506] String#split(' ') and whitespace (perl user's surprise) — mike@... (Mike Stok)

I have to confess that I use a lot of Perl, and some of its idioms are

15 messages 2003/06/26

[#74573] Using & for arrays of objects — "Krishna Dole" <kpdole@...>

Hi,

39 messages 2003/06/27

[#74579] why can't I use $3somevar for global variable in ruby 1.8.0? — Donglai Gong <donglai@...>

Hi, I'm new to Ruby programming and I just upgraded from 1.6.8 to 1.8.0

10 messages 2003/06/27

[#74702] Slides from my talk are up on rubyhacker.com — "Hal E. Fulton" <hal9000@...>

I was pleased to attend the European Ruby Conference

25 messages 2003/06/29

[#74706] Help with UnboundMethod#bind error — gabriele renzi <surrender_it@...1.vip.lng.yahoo.com>

Hi gurus and nubys,

16 messages 2003/06/29
[#74708] Re: Help with UnboundMethod#bind error — nobu.nokada@... 2003/06/29

Hi,

[#74732] Re: Help with UnboundMethod#bind error — matz@... (Yukihiro Matsumoto) 2003/06/30

Hi,

[#74919] Re: Help with UnboundMethod#bind error — "Pit Capitain" <pit@...> 2003/07/02

On 30 Jun 2003 at 17:18, Yukihiro Matsumoto wrote:

[#74717] Re: Message catalogs (I18N) overnight hack... — "Hal E. Fulton" <hal9000@...>

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

17 messages 2003/06/29

[#74747] Editor like Textpad on Linux? — Dominik Werder <dwerder@...>

Hello,

13 messages 2003/06/30

[#74768] dynamic object creation — Aryeh Friedman <aryeh@...>

If I have something like this:

15 messages 2003/06/30

ext/gdbm and multiple readers at a time

From: Mauricio Fern疣dez <batsman.geo@...>
Date: 2003-06-08 20:25:53 UTC
List: ruby-talk #73062
I sent this to ruby-core but got no answer.  I guess I generated too
much noise in the past there (Jenkins & hashes) :-P

However, I'd like to know if the following is sensible. I need
concurrent access to a GDBM database and the following seems to make
the trick.

---

man gdbm says

A  process that opens a gdbm file is designated as a "reader" or a
"writer".  Only one writer may open a gdbm file and many readers
                                                    ============ 
may open the file.  Readers and writers can not open the gdbm
file at the same time.

However the gdbm extension didn't seem to allow that.
I ended up doing the following:

--- ruby-1.8.0.orig/ext/gdbm/gdbm.c     Tue Jun  3 13:25:17 2003
+++ ruby-1.8.0/ext/gdbm/gdbm.c  Tue Jun  3 13:27:17 2003
@@ -97,6 +97,8 @@

     if (!NIL_P(vflags))
         flags = NUM2INT(vflags);
+    else
+        flags = GDBM_READER;

     SafeStringValue(file);

@@ -106,10 +108,7 @@
                        GDBM_WRCREAT|flags, mode, MY_FATAL_FUNC);
     if (!dbm)
        dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE,
-                       GDBM_WRITER|flags, 0, MY_FATAL_FUNC);
-    if (!dbm)
-       dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE,
-                       GDBM_READER|flags, 0, MY_FATAL_FUNC);
+                       flags, 0, MY_FATAL_FUNC);

     if (!dbm) {
        if (mode == -1) return Qnil;
@@ -974,12 +973,12 @@
     rb_define_method(rb_cGDBM, "to_hash", fgdbm_to_hash, 0);

     /* flags for gdbm_opn() */
-    /*
+
     rb_define_const(rb_cGDBM, "READER",  INT2FIX(GDBM_READER));
     rb_define_const(rb_cGDBM, "WRITER",  INT2FIX(GDBM_WRITER));
     rb_define_const(rb_cGDBM, "WRCREAT", INT2FIX(GDBM_WRCREAT));
     rb_define_const(rb_cGDBM, "NEWDB",   INT2FIX(GDBM_NEWDB));
-    */
+
     rb_define_const(rb_cGDBM, "FAST", INT2FIX(GDBM_FAST));
     /* this flag is obsolete in gdbm 1.8.
        On gdbm 1.8, fast mode is default behavior. */


Now I can do
  require 'gdbm'
  GDBM.open("something.db", GDBM::READER) do |db|
	.... = db["bla"]
  end

in several processes/threads at a time.

My patch is so simple there must be something wrong about it, otherwise
it'd be in Ruby already :-P

---

Comments appreciated.

-- 
 _           _                             
| |__   __ _| |_ ___ _ __ ___   __ _ _ __  
| '_ \ / _` | __/ __| '_ ` _ \ / _` | '_ \ 
| |_) | (_| | |_\__ \ | | | | | (_| | | | |
|_.__/ \__,_|\__|___/_| |_| |_|\__,_|_| |_|
	Running Debian GNU/Linux Sid (unstable)
batsman dot geo at yahoo dot com

...[Linux's] capacity to talk via any medium except smoke signals.
	-- Dr. Greg Wettstein, Roger Maris Cancer Center

In This Thread

Prev Next