sys/kern/uipc_mqueue.c

2154        struct file **fpp, struct mqfs_node **ppn, struct mqueue **pmq)
2159 	error = func(td, fd, rightsp, fpp);
2162 	if (&mqueueops != (*fpp)->f_ops) {
2163 		fdrop(*fpp, td);
2166 	pn = (*fpp)->f_data;
2175 getmq(struct thread *td, int fd, struct file **fpp, struct mqfs_node **ppn,
2181 	    fpp, ppn, pmq);
2185 getmq_read(struct thread *td, int fd, struct file **fpp,
2191 	    fpp, ppn, pmq);
2195 getmq_write(struct thread *td, int fd, struct file **fpp,
2201 	    fpp, ppn, pmq);