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	---
	timpl-scl.lisp (2681B)
	---
	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" threa…
	101 (lambda () (not (mp:process-alive-p thread)))))
	102
	103 (mark-supported)