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;;; -*- Mode: LISP; Syntax: COMMON-LISP; Package: CL-USER; Base: 10 -*-
;;; Copyright (c) 2004-2010, 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)
(defun set-timeouts (usocket read-timeout write-timeout)
"Sets up timeouts on the given USOCKET object. READ-TIMEOUT is the
read timeout period, WRITE-TIMEOUT is the write timeout, specified in
\(fractional) seconds. The timeouts can either be implemented using
the low-level socket options SO_RCVTIMEO and SO_SNDTIMEO or some
other, implementation specific mechanism. On platforms that do not
support separate read and write timeouts, both must be equal or an
error will be signaled. READ-TIMEOUT and WRITE-TIMEOUT may be NIL,
which means that the corresponding socket timeout value will not be
set."
(declare (ignorable usocket read-timeout write-timeout))
;; add other Lisps here if necessary
#+(or :sbcl :cmu)
(unless (eql read-timeout write-timeout)
(parameter-error "Read and write timeouts for socket must be equal."))
#+:clisp
(when read-timeout
(socket:socket-options (usocket:socket usocket) :SO-RCVTIMEO read-timeout))
#+:clisp
(when write-timeout
(socket:socket-options (usocket:socket usocket) :SO-SNDTIMEO write-timeout))
#+:openmcl
(when read-timeout
(setf (ccl:stream-input-timeout (usocket:socket usocket))
read-timeout))
#+:openmcl
(when write-timeout
(setf (ccl:stream-output-timeout (usocket:socket usocket))
write-timeout))
#+:sbcl
(when read-timeout
(setf (sb-impl::fd-stream-timeout (usocket:socket-stream usocket))
(coerce read-timeout 'single-float)))
#+:cmu
(setf (lisp::fd-stream-timeout (usocket:socket-stream usocket))
(coerce read-timeout 'integer))
#-(or :clisp :allegro :openmcl :sbcl :lispworks :cmu)
(not-implemented 'set-timeouts))
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