impl-clasp.lisp - clic - Clic is an command line interactive client for gopher … | |
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impl-clasp.lisp (2703B) | |
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1 ;;;; -*- 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 (deftype thread () | |
15 'mp:process) | |
16 | |
17 ;;; Thread Creation | |
18 | |
19 (defun %make-thread (function name) | |
20 (mp:process-run-function name function bordeaux-threads:*default-speci… | |
21 | |
22 (defun current-thread () | |
23 mp:*current-process*) | |
24 | |
25 (defun threadp (object) | |
26 (typep object 'mp:process)) | |
27 | |
28 (defun thread-name (thread) | |
29 (mp:process-name thread)) | |
30 | |
31 ;;; Resource contention: locks and recursive locks | |
32 | |
33 (deftype lock () 'mp:mutex) | |
34 | |
35 (deftype recursive-lock () | |
36 '(and mp:mutex (satisfies mp:recursive-lock-p))) | |
37 | |
38 (defun lock-p (object) | |
39 (typep object 'mp:mutex)) | |
40 | |
41 (defun recursive-lock-p (object) | |
42 (and (typep object 'mp:lock) | |
43 (mp:recursive-lock-p object))) | |
44 | |
45 (defun make-lock (&optional name) | |
46 (mp:make-lock :name (or name :anonymous))) | |
47 | |
48 (defun acquire-lock (lock &optional (wait-p t)) | |
49 (mp:get-lock lock wait-p)) | |
50 | |
51 (defun release-lock (lock) | |
52 (mp:giveup-lock lock)) | |
53 | |
54 | |
55 (defmacro with-lock-held ((place) &body body) | |
56 `(mp:with-lock (,place) ,@body)) | |
57 | |
58 (defun make-recursive-lock (&optional name) | |
59 (mp:make-recursive-mutex (or name :anonymous-recursive-lock))) | |
60 | |
61 (defun acquire-recursive-lock (lock &optional (wait-p t)) | |
62 (mp:get-lock lock wait-p)) | |
63 | |
64 (defun release-recursive-lock (lock) | |
65 (mp:giveup-lock lock)) | |
66 | |
67 (defmacro with-recursive-lock-held ((place) &body body) | |
68 `(mp:with-lock (,place) ,@body)) | |
69 | |
70 ;;; Resource contention: condition variables | |
71 | |
72 (defun make-condition-variable (&key name) | |
73 (declare (ignore name)) | |
74 (mp:make-condition-variable)) | |
75 | |
76 (defun condition-wait (condition-variable lock &key timeout) | |
77 (if timeout | |
78 (mp:condition-variable-timedwait condition-variable lock timeout) | |
79 (mp:condition-variable-wait condition-variable lock)) | |
80 t) | |
81 | |
82 (defun condition-notify (condition-variable) | |
83 (mp:condition-variable-signal condition-variable)) | |
84 | |
85 (defun thread-yield () | |
86 (mp:process-yield)) | |
87 | |
88 ;;; Introspection/debugging | |
89 | |
90 (defun all-threads () | |
91 (mp:all-processes)) | |
92 | |
93 (defun interrupt-thread (thread function &rest args) | |
94 (flet ((apply-function () | |
95 (if args | |
96 (lambda () (apply function args)) | |
97 function))) | |
98 (declare (dynamic-extent #'apply-function)) | |
99 (mp:interrupt-process thread (apply-function)))) | |
100 | |
101 (defun destroy-thread (thread) | |
102 (signal-error-if-current-thread thread) | |
103 (mp:process-kill thread)) | |
104 | |
105 (defun thread-alive-p (thread) | |
106 (mp:process-active-p thread)) | |
107 | |
108 (defun join-thread (thread) | |
109 (mp:process-join thread)) | |
110 | |
111 (mark-supported) |