timpl-scl.lisp - clic - Clic is an command line interactive client for gopher written in Common LISP
 (HTM) git clone git://bitreich.org/clic/ git://hg6vgqziawt5s4dj.onion/clic/
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       timpl-scl.lisp (2681B)
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            1 ;;;; -*- indent-tabs-mode: nil -*-
            2 
            3 #|
            4 Copyright 2008 Scieneer Pty Ltd
            5 
            6 Distributed under the MIT license (see LICENSE file)
            7 |#
            8 
            9 (in-package #:bordeaux-threads)
           10 
           11 (deftype thread ()
           12   'thread:thread)
           13 
           14 (defun %make-thread (function name)
           15   (thread:thread-create function :name name))
           16 
           17 (defun current-thread ()
           18   thread:*thread*)
           19 
           20 (defun threadp (object)
           21   (typep object 'thread:thread))
           22 
           23 (defun thread-name (thread)
           24   (thread:thread-name thread))
           25 
           26 ;;; Resource contention: locks and recursive locks
           27 
           28 (deftype lock () 'thread:lock)
           29 
           30 (deftype recursive-lock () 'thread:recursive-lock)
           31 
           32 (defun lock-p (object)
           33   (typep object 'thread:lock))
           34 
           35 (defun recursive-lock-p (object)
           36   (typep object 'thread:recursive-lock))
           37 
           38 (defun make-lock (&optional name)
           39   (thread:make-lock (or name "Anonymous lock")))
           40 
           41 (defun acquire-lock (lock &optional (wait-p t))
           42   (thread::acquire-lock lock nil wait-p))
           43 
           44 (defun release-lock (lock)
           45   (thread::release-lock lock))
           46 
           47 (defmacro with-lock-held ((place) &body body)
           48   `(thread:with-lock-held (,place) ,@body))
           49 
           50 (defun make-recursive-lock (&optional name)
           51   (thread:make-lock (or name "Anonymous recursive lock")
           52                     :type :recursive))
           53 
           54 ;;; XXX acquire-recursive-lock and release-recursive-lock are actually
           55 ;;; complicated because we can't use control stack tricks.  We need to
           56 ;;; actually count something to check that the acquire/releases are
           57 ;;; balanced
           58 
           59 (defmacro with-recursive-lock-held ((place) &body body)
           60   `(thread:with-lock-held (,place)
           61      ,@body))
           62 
           63 ;;; Resource contention: condition variables
           64 
           65 (defun make-condition-variable (&key name)
           66   (thread:make-cond-var (or name "Anonymous condition variable")))
           67 
           68 (defun condition-wait (condition-variable lock &key timeout)
           69   (if timeout
           70       (thread:cond-var-timedwait condition-variable lock timeout)
           71       (thread:cond-var-wait condition-variable lock))
           72   t)
           73 
           74 (defun condition-notify (condition-variable)
           75   (thread:cond-var-broadcast condition-variable))
           76 
           77 (defun thread-yield ()
           78   (mp:process-yield))
           79 
           80 ;;; Introspection/debugging
           81 
           82 (defun all-threads ()
           83   (mp:all-processes))
           84 
           85 (defun interrupt-thread (thread function &rest args)
           86   (flet ((apply-function ()
           87            (if args
           88                (lambda () (apply function args))
           89                function)))
           90     (declare (dynamic-extent #'apply-function))
           91     (thread:thread-interrupt thread (apply-function))))
           92 
           93 (defun destroy-thread (thread)
           94   (thread:destroy-thread thread))
           95 
           96 (defun thread-alive-p (thread)
           97   (mp:process-alive-p thread))
           98 
           99 (defun join-thread (thread)
          100   (mp:process-wait (format nil "Waiting for thread ~A to complete" thread)
          101                    (lambda () (not (mp:process-alive-p thread)))))
          102 
          103 (mark-supported)