1 (in-package :sb-bsd-sockets)
3 ;;; Miscellaneous things, placed here until I can find a logically more
4 ;;; coherent place to put them
6 ;;; I don't want to provide a complete interface to unix file
7 ;;; operations, for example, but being about to set O_NONBLOCK on a
8 ;;; socket is a necessary operation.
10 ;;; XXX bad (sizeof (int) ==4 ) assumptions
12 (defmethod non-blocking-mode ((socket socket))
13 "Is SOCKET in non-blocking mode?"
14 (let ((fd (socket-file-descriptor socket)))
15 (sb-alien:with-alien ((arg integer))
17 (sockint::fcntl fd sockint::f-getfl arg)
21 (defmethod (setf non-blocking-mode) (non-blocking-p (socket socket))
22 "Put SOCKET in non-blocking mode - or not, according to NON-BLOCKING-P"
23 (declare (optimize (speed 3)))
24 (let* ((fd (socket-file-descriptor socket))
25 (arg1 (the (signed-byte 32) (sockint::fcntl fd sockint::f-getfl 0)))
28 (logior arg1 sockint::o-nonblock)
29 (logand (lognot sockint::o-nonblock) arg1))))
30 (when (= (the (signed-byte 32) -1)
32 (sockint::fcntl fd sockint::f-setfl arg2)))
33 (socket-error "fcntl"))