src/impl-mkcl.lisp

   1 ;;;; -*- indent-tabs-mode: nil -*-
   2
   3 #|
   4 Copyright 2006, 2007 Greg Pfeil
   5 Copyright 2010 Jean-Claude Beaudoin.
   6
   7 Distributed under the MIT license (see LICENSE file)
   8 |#
   9
  10 (in-package #:bordeaux-threads)
  11
  12 (deftype thread ()
  13   'mt:thread)
  14
  15 ;;; Thread Creation
  16
  17 (defun %make-thread (function name)
  18   (mt:thread-run-function name function))
  19
  20 (defun current-thread ()
  21   mt::*thread*)
  22
  23 (defun threadp (object)
  24   (typep object 'mt:thread))
  25
  26 (defun thread-name (thread)
  27   (mt:thread-name thread))
  28
  29 ;;; Resource contention: locks and recursive locks
  30
  31 (deftype lock () 'mt:lock)
  32
  33 (deftype recursive-lock ()
  34   '(and mt:lock (satisfies mt:recursive-lock-p)))
  35
  36 (defun lock-p (object)
  37   (typep object 'mt:lock))
  38
  39 (defun recursive-lock-p (object)
  40   (and (typep object 'mt:lock)
  41        (mt:recursive-lock-p object)))
  42
  43 (defun make-lock (&optional name)
  44   (mt:make-lock :name (or name "Anonymous lock")))
  45
  46 (defun acquire-lock (lock &optional (wait-p t))
  47   (mt:get-lock lock wait-p))
  48
  49 (defun release-lock (lock)
  50   (mt:giveup-lock lock))
  51
  52 (defmacro with-lock-held ((place) &body body)
  53   `(mt:with-lock (,place) ,@body))
  54
  55 (defun make-recursive-lock (&optional name)
  56   (mt:make-lock :name (or name "Anonymous recursive lock") :recursive t))
  57
  58 (defun acquire-recursive-lock (lock &optional (wait-p t))
  59   (mt:get-lock lock wait-p))
  60
  61 (defun release-recursive-lock (lock)
  62   (mt:giveup-lock lock))
  63
  64 (defmacro with-recursive-lock-held ((place) &body body)
  65   `(mt:with-lock (,place) ,@body))
  66
  67 ;;; Resource contention: condition variables
  68
  69 (defun make-condition-variable (&key name)
  70   (declare (ignore name))
  71   (mt:make-condition-variable))
  72
  73 (defun condition-wait (condition-variable lock &key timeout)
  74   (signal-error-if-condition-wait-timeout timeout)
  75   (mt:condition-wait condition-variable lock)
  76   t)
  77
  78 (define-condition-wait-compiler-macro)
  79
  80 (defun condition-notify (condition-variable)
  81   (mt:condition-signal condition-variable))
  82
  83 (defun thread-yield ()
  84   (mt:thread-yield))
  85
  86 ;;; Introspection/debugging
  87
  88 (defun all-threads ()
  89   (mt:all-threads))
  90
  91 (defun interrupt-thread (thread function &rest args)
  92   (flet ((apply-function ()
  93            (if args
  94                (lambda () (apply function args))
  95                function)))
  96     (declare (dynamic-extent #'apply-function))
  97     (mt:interrupt-thread thread (apply-function))))
  98
  99 (defun destroy-thread (thread)
 100   (signal-error-if-current-thread thread)
 101   (mt:thread-kill thread))
 102
 103 (defun thread-alive-p (thread)
 104   (mt:thread-active-p thread))
 105
 106 (defun join-thread (thread)
 107   (mt:thread-join thread))
 108
 109 (mark-supported)