dbus Digest, Vol 75, Issue 9

Mon Oct 10 00:21:58 PDT 2011

Hi,

My two dbus session record the two following vaariables :

# cat /var/log/thommedia_dbus/thom_dbus_addr
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-oBGwcf4zNv,guid=7c506eecada544e0033fd03e00000005

# cat /var/log/thommedia_dbus_app/thom_dbus_addr
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-bDI4PIzVmX,guid=3325a894b19750a1b700750800000039

Actually i am using the following source code for the first instance :

    # connection on
unix:abstract=/tmp/dbus-oBGwcf4zNv,guid=7c506eecada544e0033fd03e00000005
    bus1 = new DBus::Connection(DBus::Connection::SessionBus());

So for the second dbus session i need to provided a hardcoded data :

    bus2 = new
DBus::Connection("unix:abstract=/tmp/dbus-bDI4PIzVmX,guid=3325a894b19750a1b700750800000039");

Do you valid it ?

If so, I will at least write a function for extracting the content of the
/var/log/thommedia_dbus_app/thom_dbus_addr file.

A+
Thierry GAYET
+33.663.849.589
Skype : terranova44
www.nextinnovation.org
www.apprendreindonesien.com

2011/10/10 Thierry GAYET <thierry.gayet at gmail.com>

> Hi
>
> Thanks for the reply ; this is was i was planning to do but thanks for the
> confirmation.
>
> I am starting my dbus session such as :
>
>     eval `dbus-launch --sh-syntax`
>     env | grep DBUS_SESSION_BUS_ADDRESS >
> /var/log/thommedia_dbus/thom_dbus_addr
>     export `cat /var/log/thommedia_dbus/thom_dbus_addr`
>
> How i can get the address and pass for a dbus connexion ? Then how to use
> it in order to initialize the connexion ?
>
> Any C/C++ source code welcome.
>
> Regards
>
> Thierry
>
> 2011/10/9 <dbus-request at lists.freedesktop.org>
>
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>> Today's Topics:
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>>   1. Connexion on two dbus session (Thierry GAYET)
>>   2. Re: Connexion on two dbus session (Thiago Macieira)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Sun, 9 Oct 2011 18:21:01 +0200
>> From: Thierry GAYET <thierry.gayet at gmail.com>
>> Subject: Connexion on two dbus session
>> To: dbus at lists.freedesktop.org
>> Message-ID:
>>        <
>> CADJRVCgvmtRrfArOyx2Ekgz+umriWkCNLG0F1mGFdY3S94_cvA at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi,
>>
>> I have a question about a gnu/Linux architecture based on several dbus.
>>
>> Indeed, i have two dbus session and one dbus system.
>>
>> The two dbus session are not communicating directly by through a c++
>> process
>> that can be associated as a proxy or a firewall.
>>
>> It was easy to start the several deamons but i wanna know if this is
>> possible to make a connexion on the two dbus session in the same process ?
>>
>> I have seen that the dbus's addess if get from an environment variable but
>> only one (the last dbus session launched) is associated to the this unique
>> variable.
>>
>> Thus, when i make a connexion in my program this is always on the same
>> dbus
>> session.
>>
>> Do you know if this is possible in dbus / dbus c++ binding ? i mean
>> without
>> any modification of the dbus daemon and/or its library ?
>>
>> If someone have some example of code it will be quite nice :-)
>>
>> A+
>> Thierry GAYET
>> +33.663.849.589
>> Skype : terranova44
>> www.nextinnovation.org
>> www.apprendreindonesien.com
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>> ------------------------------
>>
>> Message: 2
>> Date: Sun, 09 Oct 2011 19:27:07 +0200
>> From: Thiago Macieira <thiago at kde.org>
>> Subject: Re: Connexion on two dbus session
>> To: dbus at lists.freedesktop.org
>> Message-ID: <1370212.dIJ4nWuzRa at doriath>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> On Sunday, 9 de October de 2011 18:21:01 Thierry GAYET wrote:
>> > Do you know if this is possible in dbus / dbus c++ binding ? i mean
>> without
>> > any modification of the dbus daemon and/or its library ?
>> >
>> > If someone have some example of code it will be quite nice
>>
>> It's possible to connect to more than one bus. But you'll need to get the
>> address and pass it to the connection function on your own for at least
>> one of
>> the buses.
>> --
>> Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
>>   Software Architect - Intel Open Source Technology Center
>>      PGP/GPG: 0x6EF45358; fingerprint:
>>      E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358
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