why is there no poll/select like mechanism for message queue?

Question

Like we can do, poll/epoll/select on an fd, we can not on msg queue id. I found some non standard methods to make msgqueue-id to fd, but afterall its a non standard. So my q

Answer 1

IBM AIX has extension for poll() on System V queues. But Linux does not have this feature. On the other hand, Linux Posix queue implementation allows to select/poll/epoll on queues.