fpathconf()

Return value of configurable limit (same as for regular files) 

mq_close()

Close a message queue 

mq_getattr()

Retrieve message queue attributes 

mq_open()

Open a message queue 

mq_receive()

Receive a message from a message queue 

mq_send()

Send a message to a message queue 

mq_setattr()

Set message queue attributes 

mq_unlink()

Unlink a message queue