message queue for two processes.

message queue for two processes.

[ratheesh kannoth]

There is a server (say A ) and two clients ( say  x and y ). These are
communicating thru message queue mechansim.  They are using same
message queue and different id to communicate.
i read like  -when a message is read , this will be removed from
message queue. Then, how can process x can read  only its intended
messages ?


-Ratheesh

Fwd: message queue for two processes.

[Aniruddha Bhattacharyya]

---------- Forwarded message ----------
From: Aniruddha Bhattacharyya <aniruddha.aot@gmail.com>
Date: Sat, May 14, 2011 at 9:51 PM
Subject: Re: message queue for two processes.
To: ratheesh kannoth <ratheesh.ksz@gmail.com>,
linux-c-programming@vger.kernel.org


each MQ has a TYPE variable (long int).
struct my_MQ{
long int my_mq_type;
char data[512];
};

You can select a particular message by the TYPE argument in msgget().

Say, for x, type == 2 and for y type == 3.




On Sat, May 14, 2011 at 9:10 PM, ratheesh kannoth
<ratheesh.ksz@gmail.com> wrote:
>
> There is a server (say A ) and two clients ( say  x and y ). These are
> communicating thru message queue mechansim.  They are using same
> message queue and different id to communicate.
> i read like  -when a message is read , this will be removed from
> message queue. Then, how can process x can read  only its intended
> messages ?
>
>
> -Ratheesh
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