src/impl-ecl.lisp

   1 ;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; indent-tabs-mode: nil -*-
   2
   3 #|
   4 Copyright 2006, 2007 Greg Pfeil
   5
   6 Distributed under the MIT license (see LICENSE file)
   7 |#
   8
   9 (in-package #:bordeaux-threads)
  10
  11 ;;; documentation on the ECL Multiprocessing interface can be found at
  12 ;;; http://ecls.sourceforge.net/cgi-bin/view/Main/MultiProcessing
  13
  14 ;;; Thread Creation
  15
  16 (defun %make-thread (function name)
  17   (mp:process-run-function name function))
  18
  19 (defun current-thread ()
  20   mp::*current-process*)
  21
  22 (defun threadp (object)
  23   (typep object 'mp:process))
  24
  25 (defun thread-name (thread)
  26   (mp:process-name thread))
  27
  28 ;;; Resource contention: locks and recursive locks
  29
  30 (defun make-lock (&optional name)
  31   (mp:make-lock :name (or name "Anonymous lock")))
  32
  33 (defun acquire-lock (lock &optional (wait-p t))
  34   (mp:get-lock lock wait-p))
  35
  36 (defun release-lock (lock)
  37   (mp:giveup-lock lock))
  38
  39 (defmacro with-lock-held ((place) &body body)
  40   `(mp:with-lock (,place) ,@body))
  41
  42 ;; FIXME: Missing:
  43 ;;        * make-recursive-lock
  44 ;;        * acquire-recursive-lock
  45 ;;        * release-recursive-lock
  46
  47 ;;; Resource contention: condition variables
  48
  49 (defun thread-yield ()
  50   ;; (mp:yield)
  51   (sleep 0))
  52
  53 ;;; Introspection/debugging
  54
  55 (defun all-threads ()
  56   (mp:all-processes))
  57
  58 (defun interrupt-thread (thread function)
  59   (mp:interrupt-process thread function))
  60
  61 (defun destroy-thread (thread)
  62   (signal-error-if-current-thread thread)
  63   (mp:process-kill thread))
  64
  65 (defun thread-alive-p (thread)
  66   (mp:process-active-p thread))
  67
  68 (mark-supported)