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 (defgeneric non-blocking-mode (socket)
13 (:documentation "Is SOCKET in non-blocking mode?"))
16 (defmethod non-blocking-mode ((socket socket))
17 (let ((fd (socket-file-descriptor socket)))
18 (sb-alien:with-alien ((arg integer))
20 (sockint::fcntl fd sockint::f-getfl arg)
25 (defmethod non-blocking-mode ((socket socket))
26 (slot-value socket 'non-blocking-p))
28 (defgeneric (setf non-blocking-mode) (non-blocking-p socket)
29 (:documentation "Put SOCKET in non-blocking mode - or not, according to NON-BLOCKING-P"))
32 (defmethod (setf non-blocking-mode) (non-blocking-p (socket socket))
33 (declare (optimize (speed 3)))
34 (let* ((fd (socket-file-descriptor socket))
35 (arg1 (the (signed-byte 32) (sockint::fcntl fd sockint::f-getfl 0)))
38 (logior arg1 sockint::o-nonblock)
39 (logand (lognot sockint::o-nonblock) arg1))))
40 (when (= (the (signed-byte 32) -1)
42 (sockint::fcntl fd sockint::f-setfl arg2)))
43 (socket-error "fcntl"))
47 (defmethod (setf non-blocking-mode)
48 (non-blocking-p (socket socket))
49 (declare (optimize (speed 3)))
50 (setf (slot-value socket 'non-blocking-p)
51 (when non-blocking-p t))
52 (let ((fd (socket-file-descriptor socket)))
53 (when (= (the (signed-byte 32) -1)
55 (sockint::ioctl fd sockint::FIONBIO (if non-blocking-p 1 0))))
56 (socket-error "ioctl(FIONBIO)"))
57 (when non-blocking-p t)))