43 	int saved_errno, ret, fd, maxfd = 0;  in poll()  local
49 		fd = fds[i].fd;  in poll()
50 		if (fd >= FD_SETSIZE) {  in poll()
54 		maxfd = MAX(maxfd, fd);  in poll()
68 		fd = fds[i].fd;  in poll()
69 		if (fd == -1)  in poll()
72 			FD_SET(fd, readfds);  in poll()
73 			FD_SET(fd, exceptfds);  in poll()
76 			FD_SET(fd, writefds);  in poll()
77 			FD_SET(fd, exceptfds);  in poll()
93 		fd = fds[i].fd;  in poll()
95 		if (fd == -1)  in poll()
97 		if (FD_ISSET(fd, readfds)) {  in poll()
100 		if (FD_ISSET(fd, writefds)) {  in poll()
103 		if (FD_ISSET(fd, exceptfds)) {  in poll()