615 static int copyfd_io_poll(int infd, int peerfd, int outfd,  in copyfd_io_poll()  argument
619 		.fd = peerfd,  in copyfd_io_poll()
624 	set_nonblock(peerfd, true);  in copyfd_io_poll()
653 				len = read(peerfd, rbuf, rb);  in copyfd_io_poll()
655 				len = do_rnd_read(peerfd, rbuf, sizeof(rbuf));  in copyfd_io_poll()
694 				bw = do_rnd_write(peerfd, winfo->buf + winfo->off, winfo->len);  in copyfd_io_poll()
713 				shut_wr(peerfd);  in copyfd_io_poll()
861 static int copyfd_io_mmap(int infd, int peerfd, int outfd,  in copyfd_io_mmap()  argument
868 		err = do_recvfile(peerfd, outfd);  in copyfd_io_mmap()
872 		err = do_mmap(infd, peerfd, size, winfo);  in copyfd_io_mmap()
874 		err = do_mmap(infd, peerfd, size, winfo);  in copyfd_io_mmap()
878 		shut_wr(peerfd);  in copyfd_io_mmap()
880 		err = do_recvfile(peerfd, outfd);  in copyfd_io_mmap()
887 static int copyfd_io_sendfile(int infd, int peerfd, int outfd,  in copyfd_io_sendfile()  argument
893 		err = do_recvfile(peerfd, outfd);  in copyfd_io_sendfile()
897 		err = do_sendfile(infd, peerfd, size, winfo);  in copyfd_io_sendfile()
899 		err = do_sendfile(infd, peerfd, size, winfo);  in copyfd_io_sendfile()
903 		shut_wr(peerfd);  in copyfd_io_sendfile()
905 		err = do_recvfile(peerfd, outfd);  in copyfd_io_sendfile()
912 static int copyfd_io(int infd, int peerfd, int outfd, bool close_peerfd, struct wstate *winfo)  in copyfd_io()  argument
924 		ret = copyfd_io_poll(infd, peerfd, outfd, &in_closed_after_out,  in copyfd_io()
932 		ret = copyfd_io_mmap(infd, peerfd, outfd, file_size,  in copyfd_io()
940 		ret = copyfd_io_sendfile(infd, peerfd, outfd, file_size,  in copyfd_io()
955 		close(peerfd);  in copyfd_io()