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1 | ;; Common Lisp bindings for GTK+ v2.0 |
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2 | ;; Copyright 2005-2006 Espen S. Johnsen <espen@users.sf.net> |
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3 | ;; |
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4 | ;; Permission is hereby granted, free of charge, to any person obtaining |
5 | ;; a copy of this software and associated documentation files (the |
6 | ;; "Software"), to deal in the Software without restriction, including |
7 | ;; without limitation the rights to use, copy, modify, merge, publish, |
8 | ;; distribute, sublicense, and/or sell copies of the Software, and to |
9 | ;; permit persons to whom the Software is furnished to do so, subject to |
10 | ;; the following conditions: |
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11 | ;; |
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12 | ;; The above copyright notice and this permission notice shall be |
13 | ;; included in all copies or substantial portions of the Software. |
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14 | ;; |
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15 | ;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
16 | ;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
17 | ;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
18 | ;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
19 | ;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
20 | ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
21 | ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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22 | |
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23 | ;; $Id: gerror.lisp,v 1.11 2008-12-10 02:49:17 espen Exp $ |
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24 | |
25 | |
26 | (in-package "GLIB") |
27 | |
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28 | (define-enum-type file-error-enum |
29 | :exist :isdir :acces :name-too-long :noent :notdir :nxio :nodev :rofs :txtbsy |
30 | :fault :loop :nospc :nomem :mfile :nfile :badf :inval :pipe :again :intr |
31 | :io :perm :nosys :failed) |
32 | |
33 | (eval-when (:compile-toplevel :load-toplevel :execute) |
34 | (defclass gerror (struct) |
35 | ((domain :allocation :alien :type quark :reader gerror-domain) |
36 | (code :allocation :alien :type int :reader gerror-code) |
37 | (message :allocation :alien :type string :reader gerror-message)) |
38 | (:metaclass struct-class) |
39 | (:ref %gerror-copy) |
40 | (:unref %gerror-free))) |
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41 | |
42 | (defbinding (%gerror-copy "g_error_copy") () pointer |
43 | (location pointer)) |
44 | |
45 | (defbinding (%gerror-free "g_error_free") () nil |
46 | (location pointer)) |
47 | |
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48 | (defbinding (gerror-new "g_error_new_literal") |
49 | (domain code format &rest args) gerror |
50 | (domain quark) |
51 | (code int) |
52 | ((apply #'format nil format args) string)) |
53 | |
54 | (defbinding (gerror-set "g_set_error_literal") |
55 | (gerror domain code format &rest args) nil |
56 | gerror |
57 | (domain quark) |
58 | (code int) |
59 | ((apply #'format nil format args) string)) |
60 | |
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61 | (define-condition glib-error (error) |
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62 | ((code :initarg :code :reader gerror-code) |
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63 | (message :initarg :message :reader gerror-message)) |
64 | (:report (lambda (condition stream) |
65 | (write-string (gerror-message condition) stream)))) |
66 | |
67 | (define-condition glib-file-error (glib-error) |
68 | ()) |
69 | |
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70 | (defbinding (file-error-domain "g_file_error_quark") () quark) |
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71 | |
72 | (defun signal-gerror (gerror) |
73 | (let ((condition |
74 | (cond |
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75 | ((= (gerror-domain gerror) (file-error-domain)) 'glib-file-error) |
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76 | (t 'glib-error)))) |
77 | (error condition :code (gerror-code gerror) :message (gerror-message gerror)))) |
78 | |
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79 | ;; This temporary hack is necessary until define-callback gets support |
80 | ;; for :in/out parameters |
81 | (defun gerror-set-in-callback (indirect-location domain code format &rest args) |
82 | (unless (null-pointer-p indirect-location) |
83 | (if (null-pointer-p (ref-pointer indirect-location)) |
84 | (setf (ref-pointer indirect-location) |
85 | (funcall (to-alien-function 'gerror) |
86 | (apply #'gerror-new domain code format args))) |
87 | (let ((gerror (funcall (from-alien-function '(static gerror)) |
88 | (ref-pointer indirect-location)))) |
89 | (apply #'gerror-set gerror domain code format args))))) |
90 | |
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91 | |
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92 | (deftype gerror-signal () 'gerror) |
93 | |
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94 | (define-type-method return-type ((type gerror-signal)) |
95 | (declare (ignore type)) |
96 | '(or null gerror)) |
97 | |
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98 | (define-type-method from-alien-form ((type gerror-signal) gerror &key (ref :free)) |
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99 | (declare (ignore type)) |
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100 | `(let ((gerror ,(from-alien-form 'gerror gerror :ref ref))) |
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101 | (when gerror |
102 | (signal-gerror gerror)))) |
103 | |
104 | |
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105 | ;;; Message logging |
106 | |
107 | (eval-when (:compile-toplevel :load-toplevel :execute) |
108 | (deftype log-levels () |
109 | '(flags |
110 | :recursion :fatal ;; These are not real log-levels, but flags |
111 | ;; which may be set |
112 | error-log-level |
113 | critical-log-level |
114 | warning-log-level |
115 | message-log-level |
116 | info-log-level |
117 | debug-log-level))) |
118 | |
119 | (define-condition log-level (warning) |
120 | ((domain :initarg :domain :reader log-domain) |
121 | (message :initarg :message :reader log-message)) |
122 | (:report (lambda (condition stream) |
123 | (format stream "~A: ~A" |
124 | (log-domain condition) (log-message condition))))) |
125 | |
126 | (define-condition unknown-log-level (log-level) |
127 | ()) |
128 | |
129 | (define-condition error-log-level (log-level) |
130 | ()) |
131 | |
132 | (define-condition critical-log-level (log-level) |
133 | ()) |
134 | |
135 | (define-condition warning-log-level (log-level) |
136 | ()) |
137 | |
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138 | (define-condition message-log-level (log-level) |
139 | ()) |
140 | |
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141 | (define-condition info-log-level (log-level) |
142 | ()) |
143 | |
144 | (define-condition debug-log-level (log-level) |
145 | ()) |
146 | |
147 | (defparameter *fatal-log-levels* '(error-log-level critical-log-level)) |
148 | |
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149 | (define-callback log-handler nil |
150 | ((domain string) (log-level log-levels) (message string)) |
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151 | (let ((fatal-p (or |
152 | (find :fatal log-level) |
153 | (some |
154 | #'(lambda (level) (find level *fatal-log-levels*)) |
155 | log-level))) |
156 | (condition (or |
157 | (find-if |
158 | #'(lambda (level) (subtypep level 'condition)) |
159 | log-level) |
160 | 'unknown-log-level))) |
161 | (funcall (if fatal-p #'error #'warn) condition |
162 | :domain domain :message message))) |
163 | |
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164 | #-clisp |
165 | (setf |
166 | #+cmu(alien:extern-alien "log_handler" alien:system-area-pointer) |
167 | #+sbcl(sb-alien:extern-alien "log_handler" sb-alien:system-area-pointer) |
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168 | (callback-address log-handler)) |
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169 | |
170 | |
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171 | #?(pkg-exists-p "glib-2.0" :atleast-version "2.6.0") |
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172 | (progn |
173 | ;; Unfortunately this will only work as long as we don't abort to |
174 | ;; toplevel from within the log handler. If we do that, the next |
175 | ;; invocation of g_log will be handled as a recursion and cause an |
176 | ;; abort (SIGABORT being signaled). To make things even worse, SBCL |
177 | ;; doesn't handle SIGABRT at all. |
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178 | (defbinding %log-set-default-handler (nil) pointer |
179 | (log-handler callback) |
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180 | (nil null)) |
181 | (%log-set-default-handler)) |