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From: "Iñaki Baz Castillo" <ibc@aliax.net>
To: ruby.posix.mq@librelist.com
Subject: Re: "mode" and varios processes sharing the same queue for writting
Date: Sat, 9 Jan 2010 18:24:54 +0100	[thread overview]
Message-ID: <201001091824.54752.ibc@aliax.net> (raw)
In-Reply-To: 20100108195240.GB9838@dcvr.yhbt.net

El Viernes, 8 de Enero de 2010, Eric Wong escribió:

> Yes the mode argument is handled exactly like how the open(2) syscall
> works (and File.open(), too).

AFAIK it's not possible to open a queue and change just the maxmsg parameter. 
Instead all the "attr" fields must be set again.
And also there is no way to know the system default values (those in 
/proc/sys/fs/mqueue/*). The only way is by opening (creating in fact) a new 
mqueue and inspecting its values.

 
> > PS: Thanks a lot for this project, it's exactly what I needed (much
> > better than using DRb o UNIXsockets) :)
> 
> No problem, I'm glad this POSIX feature is getting more exposure :)

It's really great for me. It works really well by having different writers 
processes and different reader processes sharing the same mqueue (load 
balancing out of the box) :)



Thanks a lot again.

-- 
Iñaki Baz Castillo <ibc@aliax.net>

  reply	other threads:[~2010-01-09 17:25 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-08 11:12 "mode" and varios processes sharing the same queue for writting Iñaki Baz Castillo
2010-01-08 11:27 ` Iñaki Baz Castillo
2010-01-08 13:25 ` "mode" and varios processes sharing the same queue for writting [SOLVED] Iñaki Baz Castillo
2010-01-08 19:52 ` "mode" and varios processes sharing the same queue for writting Eric Wong
2010-01-09 17:24   ` Iñaki Baz Castillo [this message]
2010-01-09 19:48     ` Eric Wong
2010-01-09 22:55       ` Iñaki Baz Castillo

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