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;;; Copyright (c) 2009, Volkan YAZICI <volkan.yazici@gmail.com>
;;; 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
;;; AND ANY EXPRESS 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 COPYRIGHT OWNER OR CONTRIBUTORS 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 :patron)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Thread & Locking Abstraction Layer
;;;
(defun make-lock ()
(bt:make-lock))
(defmacro with-lock (lock &body body)
`(bt:with-lock-held (,lock) ,@body))
(defun thread-start (thread)
(prog1 thread
(let ((semaphore (semaphore-make)))
(bt:make-thread
(lambda ()
(setf (id-of thread) (bt:current-thread))
(semaphore-signal semaphore)
(funcall (function-of thread))))
(semaphore-wait semaphore))))
(defun current-thread ()
(bt:current-thread))
(defun thread-alive-p (thread)
(bt:thread-alive-p (id-of thread)))
(defun thread-interrupt (thread function)
(bt:interrupt-thread (id-of thread) function))
(defun thread-join (thread)
#+ccl (ccl:join-process (id-of thread))
#+sbcl (bt:join-thread (id-of thread))
#-(or ccl sbcl) (error "`THREAD-JOIN' is not supported!"))
(defmacro without-interrupts (&body body)
#+ccl `(ccl:without-interrupts ,@body)
#+sbcl `(sb-sys:without-interrupts ,@body)
#-(or ccl sbcl) (error "`WITHOUT-INTERRUPTS' is not supported!"))