queue using mq_send (3) and mq_receive (3). When a process has finished using ... mq_open(3) mq_open(2) mq_receive(3) mq_timedreceive(2) mq_sendfcntl (2) • POSIX message queue interfaces: mq_receive (3), mq_timedreceive (3), mq_sendfsync() getmsg() getpmsg() lockf() F_LOCK mq_receive() mq_send() mq_timedreceive() mq_timedsend() msgrcvmq_getattr () mq_notify () mq_open () mq_receive () mq_send () mq_setattr () mq_unlink