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;;; -*- Lisp -*-
;; $Id: compat-sbcl.lisp 36 2006-01-01 20:47:40Z bjc $
(in-package :moxie)
(defvar *stream-to-handler* (make-hash-table))
(defvar *stream-to-socket* (make-hash-table))
(defun make-result-stream ()
(sb-sys:make-fd-stream 3 :output t))
(defun coerce-inet-address-designator (host)
"Coerce HOST into an addess vector."
(cond ((typep host '(vector (unsigned-byte 8) 4)) host)
((some #'alpha-char-p host) (sb-bsd-sockets:host-ent-address
(sb-bsd-sockets:get-host-by-name host)))
(t (sb-bsd-sockets:make-inet-address host))))
(defun open-connection (host port &key (buffering :full))
"Opens a connection to HOST:PORT, returning a STREAM if successful, NIL otherwise."
(let ((socket (make-instance 'sb-bsd-sockets:inet-socket :type :stream
:protocol :tcp)))
(sb-bsd-sockets:socket-connect socket (coerce-inet-address-designator host) port)
(let ((stream (sb-bsd-sockets:socket-make-stream socket
:input t :output t :buffering buffering)))
(setf (gethash stream *stream-to-socket*) socket)
stream)))
(defun close-connection (stream)
"Closes STREAM."
(ignore-errors
(remove-input-handler stream)
(remhash stream *stream-to-socket*)
(close stream)))
(defun add-input-handler (stream handler)
"Adds HANDLER to the input handler list on SOCKET."
(setf (gethash stream *stream-to-handler*)
(sb-sys:add-fd-handler (sb-bsd-sockets:socket-file-descriptor (gethash stream *stream-to-socket*))
:input
(lambda (fd)
(declare (ignore fd))
(funcall handler stream)))))
(defun remove-input-handler (stream)
(awhen (gethash stream *stream-to-handler*)
(sb-sys:remove-fd-handler it)))
(defun save-lisp-and-die (path)
(sb-ext:save-lisp-and-die path))
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