Posix Message Queues

jayadhanesh · 01-03-2011, 05:49 AM

Hi,
I want to communicate between two threads, each belonging to a different process. Iam using message queues for this. I use mq_open()call. I created the queues with the same queue name starting with a '/'. But when I open the queue, the queue ID is different in both the process. What should I do so that both the process have the same queue ID?

Thanks,
Dhanesh.

Moved: This thread is more suitable in Programming and has been moved accordingly to help your thread/question get the exposure it deserves.

It should stay on the 0-reply list.

wje_lq · 01-03-2011, 11:37 PM

Quote:

Originally Posted by jayadhanesh

the queue ID is different in both the process

What is this queue ID of which you speak? The man pages (mq_overview, mq_open, mq_getattr) say nothing of a queue ID.

If what you refer to is the message queue descriptor returned to you by mq_open(), you should use that for later operations, but don't expect its value to be the same from one user of the queue to the next, even at the same time.

Does your program not work?