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;;; -*- Mode: LISP; Syntax: COMMON-LISP; Package: HUNCHENTOOT; Base: 10 -*-
;;; $Header: /usr/local/cvsrep/hunchentoot/port-acl.lisp,v 1.12 2008/04/08 14:39:17 edi Exp $
;;; Copyright (c) 2004-2008, Dr. Edmund Weitz. All rights reserved.
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;; * Redistributions of source code must retain the above copyright
;;; notice, this list of conditions and the following disclaimer.
;;; * Redistributions in binary form must reproduce the above
;;; copyright notice, this list of conditions and the following
;;; disclaimer in the documentation and/or other materials
;;; provided with the distribution.
;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
(in-package :hunchentoot)
(eval-when (:compile-toplevel :load-toplevel :execute)
#-(and :allegro-version>= (version>= 7 0))
(error "You need at least version 7.0 of AllegroCL.")
;; make sure code for sockets and OS interface is loaded
(require :sock)
(require :osi))
(defun make-lock (name)
"See AllegroCL documentation for MP:MAKE-PROCESS-LOCK."
(mp:make-process-lock :name name))
(defmacro with-lock ((lock) &body body)
"See AllegroCL documentation for MP:WITH-PROCESS-LOCK."
`(mp:with-process-lock (,lock) ,@body))
(defmacro atomic-incf (place &optional (delta 1))
"Like INCF but wrapped with SYS:WITHOUT-SCHEDULING so other
threads can't interfer."
`(sys:without-scheduling (incf ,place ,delta)))
(defun process-run-function (name function &rest args)
"See AllegroCL documentation for MP:PROCESS-RUN-FUNCTION."
(apply #'mp:process-run-function name function args))
(defun process-kill (process)
"See AllegroCL documentation for MP:PROCESS-KILL."
(mp:process-kill process))
(define-symbol-macro *current-process*
mp:*current-process*)
(defun process-allow-scheduling ()
"See AllegroCL documentation for MP:PROCESS-ALLOW-SCHEDULE."
(mp:process-allow-schedule))
(defun start-up-server (&key service address process-name announce function &allow-other-keys)
"Tries to \(partly) emulate LispWorks' COMM:START-UP-SERVER. See
<http://www.lispworks.com/documentation/lw50/LWRM/html/lwref-56.htm>
for more info."
(let (done)
(flet ((open-socket-and-accept ()
(handler-bind ((error (lambda (condition)
(funcall announce nil condition)
(setq done condition)
(return-from open-socket-and-accept))))
(let (socket)
(unwind-protect
(progn
(setf socket (socket:make-socket :address-family :internet
:type :hiper
:format :bivalent
:connect :passive
:local-host address
:local-port service
:reuse-address t
:backlog 5))
(funcall announce socket)
(setq done socket)
(loop (funcall function (socket:accept-connection socket :wait t))))
(when socket
(cl:ignore-errors (close socket))))))))
(let ((listener-thread (process-run-function process-name #'open-socket-and-accept)))
(mp:process-wait "Waiting for server to start" (lambda () done))
(typecase done
(socket:socket listener-thread)
(t (values nil done)))))))
(defun make-socket-stream (socket read-timeout write-timeout)
"Accepts a socket `handle' SOCKET and creates and returns a
corresponding stream, setting its read and write timeout if
applicable. Returns three other values - the address the request
arrived at, and the address and port of the remote host."
;; in the case of AllegroCL, SOCKET:ACCEPT-CONNECTION already
;; returned a stream
(socket:set-socket-options socket :nodelay t)
(socket:socket-control socket
:read-timeout read-timeout
:write-timeout write-timeout)
(values socket
(ignore-errors
(socket:ipaddr-to-dotted (socket:local-host socket)))
(ignore-errors
(socket:ipaddr-to-dotted (socket:remote-host socket)))
(ignore-errors
(socket:remote-port socket))))
(defun get-backtrace (error)
"This is the function that is used internally by Hunchentoot to
show or log backtraces. It accepts a condition object ERROR and
returns a string with the corresponding backtrace."
(with-output-to-string (s)
(with-standard-io-syntax
(let ((*print-readably* nil)
(*print-miser-width* 40)
(*print-pretty* t)
(tpl:*zoom-print-circle* t)
(tpl:*zoom-print-level* nil)
(tpl:*zoom-print-length* nil))
(cl:ignore-errors
(format *terminal-io* "~
~@<An unhandled error condition has been signalled:~3I ~a~I~:@>~%~%"
error))
(cl:ignore-errors
(let ((*terminal-io* s)
(*standard-output* s))
(tpl:do-command "zoom"
:from-read-eval-print-loop nil
:count t
:all t)))))))
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