POSIX message queue support in Linux kernel?

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Hi,

Does the Linux kernel support POSIX message queues as defined by
the Single Unix Specification, v2, ie.
http://www.opengroup.org/onlinepubs/007908799/xsh/mqueue.h.html

stuff like mq_open(), mq_send(), mq_close(), etc.

I've tried grepping the sources for 2.4.0, and could not find anything.

I noticed that RTLinux seems to support it, in a header file
called rtl_nfifo.h, in their distribution.

Are there any plans to introduce POSIX message queues in the base-line
Linux kernel?

Thanks.

-- 
Craig Rodrigues        
http://www.gis.net/~craigr    
rodrigc@mediaone.net          
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