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dea4d055 MW |
1 | ;;; -*-lisp-*- |
2 | ;;; | |
3 | ;;; Output scheduling protocol implementation | |
4 | ;;; | |
5 | ;;; (c) 2009 Straylight/Edgeware | |
6 | ;;; | |
7 | ||
8 | ;;;----- Licensing notice --------------------------------------------------- | |
9 | ;;; | |
e0808c47 | 10 | ;;; This file is part of the Sensible Object Design, an object system for C. |
dea4d055 MW |
11 | ;;; |
12 | ;;; SOD is free software; you can redistribute it and/or modify | |
13 | ;;; it under the terms of the GNU General Public License as published by | |
14 | ;;; the Free Software Foundation; either version 2 of the License, or | |
15 | ;;; (at your option) any later version. | |
16 | ;;; | |
17 | ;;; SOD is distributed in the hope that it will be useful, | |
18 | ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;;; GNU General Public License for more details. | |
21 | ;;; | |
22 | ;;; You should have received a copy of the GNU General Public License | |
23 | ;;; along with SOD; if not, write to the Free Software Foundation, | |
24 | ;;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | ||
26 | (cl:in-package #:sod) | |
27 | ||
28 | ;;;-------------------------------------------------------------------------- | |
29 | ;;; Sequencing machinery. | |
30 | ||
31 | (defmethod print-object ((item sequencer-item) stream) | |
32 | (print-unreadable-object (item stream :type t) | |
33 | (prin1 (sequencer-item-name item) stream))) | |
34 | ||
e82044bc MW |
35 | (defmethod shared-initialize ((sequencer sequencer) slot-names |
36 | &key (constraints nil constraintsp)) | |
37 | (call-next-method) | |
38 | (when constraintsp | |
39 | (setf (slot-value sequencer 'constraints) | |
40 | (mapcar (lambda (constraint) | |
41 | (mapcar (lambda (name) | |
42 | (ensure-sequencer-item sequencer name)) | |
43 | constraint)) | |
44 | (reverse constraints)))) | |
45 | sequencer) | |
46 | ||
dea4d055 MW |
47 | (defmethod ensure-sequencer-item ((sequencer sequencer) name) |
48 | (with-slots (table) sequencer | |
49 | (or (gethash name table) | |
ea578bb4 | 50 | (setf (gethash name table) (make-sequencer-item name))))) |
dea4d055 MW |
51 | |
52 | (defmethod add-sequencer-constraint ((sequencer sequencer) (constraint list)) | |
53 | (let ((converted-constraint | |
54 | (mapcar (lambda (name) | |
55 | (ensure-sequencer-item sequencer name)) | |
56 | constraint))) | |
57 | (with-slots (constraints) sequencer | |
32f9ec0f | 58 | (pushnew converted-constraint constraints)))) |
dea4d055 MW |
59 | |
60 | (defmethod add-sequencer-item-function ((sequencer sequencer) name function) | |
61 | (let ((item (ensure-sequencer-item sequencer name))) | |
62 | (pushnew function (sequencer-item-functions item)))) | |
63 | ||
64 | (defmethod invoke-sequencer-items ((sequencer sequencer) &rest arguments) | |
b5130310 MW |
65 | #+debug |
66 | (format *debug-io* "~@<;; ~@;Constraints: ~_~ | |
67 | ~<~@{~< * ~;~@{~S~^, ~:_~}~:>~:@_~}~:>~:>" | |
68 | (mapcar (lambda (constraint) | |
69 | (mapcar #'sequencer-item-name constraint)) | |
70 | (sequencer-constraints sequencer))) | |
64fd357d MW |
71 | (let ((seen (make-hash-table))) |
72 | (dolist (item (merge-lists (reverse (sequencer-constraints sequencer)))) | |
73 | (setf (gethash item seen) t) | |
74 | (dolist (function (reverse (sequencer-item-functions item))) | |
75 | (apply function arguments))) | |
76 | (maphash (lambda (name item) | |
77 | (unless (gethash item seen) | |
78 | (warn "Unused output item ~S" name))) | |
79 | (sequencer-table sequencer)))) | |
dea4d055 MW |
80 | |
81 | ;;;----- That's all, folks -------------------------------------------------- |