processes.lisp

   1 ;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10; Package: modlisp -*-
   2 ;;;; *************************************************************************
   3 ;;;; FILE IDENTIFICATION
   4 ;;;;
   5 ;;;; Name:          processes.lisp
   6 ;;;; Purpose:       Multiprocessing functions
   7 ;;;; Programmer:    Kevin M. Rosenberg
   8 ;;;; Date Started:  June 2003
   9 ;;;;
  10 ;;;; $Id$
  11 ;;;; *************************************************************************
  12
  13 (in-package #:kmrcl)
  14
  15
  16 (defun make-process (name func)
  17   #+allegro (mp:process-run-function name func)
  18   #+cmu (mp:make-process func :name name)
  19   #+lispworks (mp:process-run-function name nil func)
  20   #+sb-thread (sb-thread:make-thread func)
  21   #+openmcl (ccl:process-run-function name func)
  22   #-(or allegro cmu lispworks sb-thread openmcl) (funcall func)
  23   )
  24
  25 (defun destroy-process (process)
  26   #+cmu (mp:destroy-process process)
  27   #+allegro (mp:process-kill process)
  28   #+sb-thread (sb-thread:destroy-thread process)
  29   #+lispworks (mp:process-kill process)
  30   #+openmcl (ccl:process-kill process)
  31   )
  32
  33 (defun make-lock (name)
  34   #+allegro (mp:make-process-lock :name name)
  35   #+cmu (mp:make-lock name)
  36   #+lispworks (mp:make-lock :name name)
  37   #+sb-thread (sb-thread:make-mutex :name name)
  38   #+openmcl (ccl:make-lock name)
  39   )
  40
  41 (defmacro with-lock-held ((lock) &body body)
  42   #+allegro
  43   `(mp:with-process-lock (,lock) ,@body)
  44   #+cmu
  45   `(mp:with-lock-held (,lock) ,@body)
  46   #+lispworks
  47   `(mp:with-lock (,lock) ,@body)
  48   #+sb-thread
  49   `(sb-thread:with-mutex (,lock) ,@body)
  50   #+openmcl
  51   `(ccl:with-lock-grabbed (,lock) ,@body)
  52   #-(or allegro cmu lispworks sb-thread openmcl)
  53   `(progn ,@body)
  54   )
  55
  56
  57 (defmacro with-timeout ((seconds) &body body)
  58   #+allegro
  59   `(mp:with-timeout (,seconds) ,@body)
  60   #+cmu
  61   `(mp:with-timeout (,seconds) ,@body)
  62   #+sb-thread
  63   `(sb-ext:with-timeout ,seconds ,@body)
  64   #+openmcl
  65   `(ccl:process-wait-with-timeout "waiting"
  66                                  (* ,seconds ccl:*ticks-per-second*)
  67                                  #'(lambda ()
  68                                      ,@body) nil)
  69   #-(or allegro cmu sb-thread openmcl)
  70   `(progn ,@body)
  71   )
  72
  73 (defun process-sleep (n)
  74   #+allegro (mp:process-sleep n)
  75   #-allegro (sleep n))
  76