Commit | Line | Data |
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033b73e2 MA |
1 | /* Elisp bindings for D-Bus. |
2 | Copyright (C) 2007 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
19 | Boston, MA 02110-1301, USA. */ | |
20 | ||
21 | #include "config.h" | |
22 | ||
23 | #ifdef HAVE_DBUS | |
24 | #include <stdlib.h> | |
f5306ca3 | 25 | #include <stdio.h> |
033b73e2 MA |
26 | #include <dbus/dbus.h> |
27 | #include "lisp.h" | |
28 | #include "frame.h" | |
29 | #include "termhooks.h" | |
30 | #include "keyboard.h" | |
31 | ||
32 | \f | |
33 | /* Subroutines. */ | |
34 | Lisp_Object Qdbus_get_unique_name; | |
35 | Lisp_Object Qdbus_call_method; | |
36 | Lisp_Object Qdbus_send_signal; | |
37 | Lisp_Object Qdbus_register_signal; | |
17bc8f94 MA |
38 | Lisp_Object Qdbus_register_method; |
39 | Lisp_Object Qdbus_unregister_object; | |
033b73e2 MA |
40 | |
41 | /* D-Bus error symbol. */ | |
42 | Lisp_Object Qdbus_error; | |
43 | ||
44 | /* Lisp symbols of the system and session buses. */ | |
39abdd4a | 45 | Lisp_Object QCdbus_system_bus, QCdbus_session_bus; |
033b73e2 | 46 | |
54371585 MA |
47 | /* Lisp symbols of D-Bus types. */ |
48 | Lisp_Object QCdbus_type_byte, QCdbus_type_boolean; | |
49 | Lisp_Object QCdbus_type_int16, QCdbus_type_uint16; | |
50 | Lisp_Object QCdbus_type_int32, QCdbus_type_uint32; | |
51 | Lisp_Object QCdbus_type_int64, QCdbus_type_uint64; | |
52 | Lisp_Object QCdbus_type_double, QCdbus_type_string; | |
53 | Lisp_Object QCdbus_type_object_path, QCdbus_type_signature; | |
54 | Lisp_Object QCdbus_type_array, QCdbus_type_variant; | |
55 | Lisp_Object QCdbus_type_struct, QCdbus_type_dict_entry; | |
56 | ||
39abdd4a MA |
57 | /* Hash table which keeps function definitions. */ |
58 | Lisp_Object Vdbus_registered_functions_table; | |
033b73e2 MA |
59 | |
60 | /* Whether to debug D-Bus. */ | |
61 | Lisp_Object Vdbus_debug; | |
62 | ||
63 | \f | |
64 | /* We use "xd_" and "XD_" as prefix for all internal symbols, because | |
65 | we don't want to poison other namespaces with "dbus_". */ | |
66 | ||
54371585 | 67 | /* Raise a Lisp error from a D-Bus ERROR. */ |
033b73e2 | 68 | #define XD_ERROR(error) \ |
17bc8f94 | 69 | do { \ |
033b73e2 MA |
70 | char s[1024]; \ |
71 | strcpy (s, error.message); \ | |
72 | dbus_error_free (&error); \ | |
73 | /* Remove the trailing newline. */ \ | |
74 | if (strchr (s, '\n') != NULL) \ | |
75 | s[strlen (s) - 1] = '\0'; \ | |
76 | xsignal1 (Qdbus_error, build_string (s)); \ | |
17bc8f94 | 77 | } while (0) |
033b73e2 MA |
78 | |
79 | /* Macros for debugging. In order to enable them, build with | |
17bc8f94 | 80 | "make MYCPPFLAGS='-DDBUS_DEBUG -Wall'". */ |
033b73e2 MA |
81 | #ifdef DBUS_DEBUG |
82 | #define XD_DEBUG_MESSAGE(...) \ | |
17bc8f94 | 83 | do { \ |
033b73e2 MA |
84 | char s[1024]; \ |
85 | sprintf (s, __VA_ARGS__); \ | |
86 | printf ("%s: %s\n", __func__, s); \ | |
87 | message ("%s: %s", __func__, s); \ | |
17bc8f94 | 88 | } while (0) |
033b73e2 | 89 | #define XD_DEBUG_VALID_LISP_OBJECT_P(object) \ |
17bc8f94 MA |
90 | do { \ |
91 | if (!valid_lisp_object_p (object)) \ | |
92 | { \ | |
93 | XD_DEBUG_MESSAGE ("%d Assertion failure", __LINE__); \ | |
94 | xsignal1 (Qdbus_error, build_string ("Assertion failure")); \ | |
95 | } \ | |
96 | } while (0) | |
033b73e2 MA |
97 | |
98 | #else /* !DBUS_DEBUG */ | |
17bc8f94 MA |
99 | #define XD_DEBUG_MESSAGE(...) \ |
100 | do { \ | |
101 | if (!NILP (Vdbus_debug)) \ | |
102 | { \ | |
103 | char s[1024]; \ | |
104 | sprintf (s, __VA_ARGS__); \ | |
105 | message ("%s: %s", __func__, s); \ | |
80f9d13b | 106 | } \ |
17bc8f94 | 107 | } while (0) |
033b73e2 MA |
108 | #define XD_DEBUG_VALID_LISP_OBJECT_P(object) |
109 | #endif | |
110 | ||
87cf1a39 MA |
111 | /* Check whether TYPE is a basic DBusType. */ |
112 | #define XD_BASIC_DBUS_TYPE(type) \ | |
113 | ((type == DBUS_TYPE_BYTE) \ | |
114 | || (type == DBUS_TYPE_BOOLEAN) \ | |
115 | || (type == DBUS_TYPE_INT16) \ | |
116 | || (type == DBUS_TYPE_UINT16) \ | |
117 | || (type == DBUS_TYPE_INT32) \ | |
118 | || (type == DBUS_TYPE_UINT32) \ | |
119 | || (type == DBUS_TYPE_INT64) \ | |
120 | || (type == DBUS_TYPE_UINT64) \ | |
121 | || (type == DBUS_TYPE_DOUBLE) \ | |
122 | || (type == DBUS_TYPE_STRING) \ | |
123 | || (type == DBUS_TYPE_OBJECT_PATH) \ | |
124 | || (type == DBUS_TYPE_SIGNATURE)) | |
125 | ||
54371585 MA |
126 | /* Determine the DBusType of a given Lisp symbol. OBJECT must be one |
127 | of the predefined D-Bus type symbols. */ | |
87cf1a39 MA |
128 | #define XD_SYMBOL_TO_DBUS_TYPE(object) \ |
129 | ((EQ (object, QCdbus_type_byte)) ? DBUS_TYPE_BYTE \ | |
130 | : (EQ (object, QCdbus_type_boolean)) ? DBUS_TYPE_BOOLEAN \ | |
131 | : (EQ (object, QCdbus_type_int16)) ? DBUS_TYPE_INT16 \ | |
132 | : (EQ (object, QCdbus_type_uint16)) ? DBUS_TYPE_UINT16 \ | |
133 | : (EQ (object, QCdbus_type_int32)) ? DBUS_TYPE_INT32 \ | |
134 | : (EQ (object, QCdbus_type_uint32)) ? DBUS_TYPE_UINT32 \ | |
135 | : (EQ (object, QCdbus_type_int64)) ? DBUS_TYPE_INT64 \ | |
136 | : (EQ (object, QCdbus_type_uint64)) ? DBUS_TYPE_UINT64 \ | |
137 | : (EQ (object, QCdbus_type_double)) ? DBUS_TYPE_DOUBLE \ | |
138 | : (EQ (object, QCdbus_type_string)) ? DBUS_TYPE_STRING \ | |
139 | : (EQ (object, QCdbus_type_object_path)) ? DBUS_TYPE_OBJECT_PATH \ | |
140 | : (EQ (object, QCdbus_type_signature)) ? DBUS_TYPE_SIGNATURE \ | |
141 | : (EQ (object, QCdbus_type_array)) ? DBUS_TYPE_ARRAY \ | |
142 | : (EQ (object, QCdbus_type_variant)) ? DBUS_TYPE_VARIANT \ | |
143 | : (EQ (object, QCdbus_type_struct)) ? DBUS_TYPE_STRUCT \ | |
144 | : (EQ (object, QCdbus_type_dict_entry)) ? DBUS_TYPE_DICT_ENTRY \ | |
145 | : DBUS_TYPE_INVALID) | |
146 | ||
147 | /* Check whether a Lisp symbol is a predefined D-Bus type symbol. */ | |
148 | #define XD_DBUS_TYPE_P(object) \ | |
149 | (SYMBOLP (object) && ((XD_SYMBOL_TO_DBUS_TYPE (object) != DBUS_TYPE_INVALID))) | |
54371585 MA |
150 | |
151 | /* Determine the DBusType of a given Lisp OBJECT. It is used to | |
033b73e2 MA |
152 | convert Lisp objects, being arguments of `dbus-call-method' or |
153 | `dbus-send-signal', into corresponding C values appended as | |
154 | arguments to a D-Bus message. */ | |
87cf1a39 MA |
155 | #define XD_OBJECT_TO_DBUS_TYPE(object) \ |
156 | ((EQ (object, Qt) || EQ (object, Qnil)) ? DBUS_TYPE_BOOLEAN \ | |
157 | : (NATNUMP (object)) ? DBUS_TYPE_UINT32 \ | |
158 | : (INTEGERP (object)) ? DBUS_TYPE_INT32 \ | |
159 | : (FLOATP (object)) ? DBUS_TYPE_DOUBLE \ | |
160 | : (STRINGP (object)) ? DBUS_TYPE_STRING \ | |
161 | : (XD_DBUS_TYPE_P (object)) ? XD_SYMBOL_TO_DBUS_TYPE (object) \ | |
162 | : (CONSP (object)) ? ((XD_DBUS_TYPE_P (XCAR (object))) \ | |
163 | ? XD_SYMBOL_TO_DBUS_TYPE (XCAR (object)) \ | |
164 | : DBUS_TYPE_ARRAY) \ | |
165 | : DBUS_TYPE_INVALID) | |
166 | ||
167 | /* Return a list pointer which does not have a Lisp symbol as car. */ | |
168 | #define XD_NEXT_VALUE(object) \ | |
169 | ((XD_DBUS_TYPE_P (XCAR (object))) ? XCDR (object) : object) | |
170 | ||
171 | /* Compute SIGNATURE of OBJECT. It must have a form that it can be | |
172 | used in dbus_message_iter_open_container. DTYPE is the DBusType | |
173 | the object is related to. It is passed as argument, because it | |
174 | cannot be detected in basic type objects, when they are preceded by | |
175 | a type symbol. PARENT_TYPE is the DBusType of a container this | |
176 | signature is embedded, or DBUS_TYPE_INVALID. It is needed for the | |
177 | check that DBUS_TYPE_DICT_ENTRY occurs only as array element. */ | |
54371585 | 178 | void |
87cf1a39 MA |
179 | xd_signature(signature, dtype, parent_type, object) |
180 | char *signature; | |
181 | unsigned int dtype, parent_type; | |
033b73e2 MA |
182 | Lisp_Object object; |
183 | { | |
87cf1a39 MA |
184 | unsigned int subtype; |
185 | Lisp_Object elt; | |
186 | char x[DBUS_MAXIMUM_SIGNATURE_LENGTH]; | |
187 | ||
188 | elt = object; | |
033b73e2 | 189 | |
033b73e2 MA |
190 | switch (dtype) |
191 | { | |
54371585 MA |
192 | case DBUS_TYPE_BYTE: |
193 | case DBUS_TYPE_UINT16: | |
033b73e2 | 194 | case DBUS_TYPE_UINT32: |
54371585 MA |
195 | case DBUS_TYPE_UINT64: |
196 | CHECK_NATNUM (object); | |
87cf1a39 | 197 | sprintf (signature, "%c", dtype); |
54371585 | 198 | break; |
87cf1a39 | 199 | |
54371585 MA |
200 | case DBUS_TYPE_BOOLEAN: |
201 | if (!EQ (object, Qt) && !EQ (object, Qnil)) | |
202 | wrong_type_argument (intern ("booleanp"), object); | |
87cf1a39 | 203 | sprintf (signature, "%c", dtype); |
54371585 | 204 | break; |
87cf1a39 | 205 | |
54371585 | 206 | case DBUS_TYPE_INT16: |
033b73e2 | 207 | case DBUS_TYPE_INT32: |
54371585 MA |
208 | case DBUS_TYPE_INT64: |
209 | CHECK_NUMBER (object); | |
87cf1a39 | 210 | sprintf (signature, "%c", dtype); |
54371585 | 211 | break; |
87cf1a39 | 212 | |
033b73e2 | 213 | case DBUS_TYPE_DOUBLE: |
54371585 | 214 | CHECK_FLOAT (object); |
87cf1a39 | 215 | sprintf (signature, "%c", dtype); |
54371585 | 216 | break; |
87cf1a39 | 217 | |
033b73e2 | 218 | case DBUS_TYPE_STRING: |
54371585 MA |
219 | case DBUS_TYPE_OBJECT_PATH: |
220 | case DBUS_TYPE_SIGNATURE: | |
221 | CHECK_STRING (object); | |
87cf1a39 | 222 | sprintf (signature, "%c", dtype); |
54371585 | 223 | break; |
87cf1a39 | 224 | |
54371585 | 225 | case DBUS_TYPE_ARRAY: |
9af5078b | 226 | /* Check that all list elements have the same D-Bus type. For |
87cf1a39 MA |
227 | complex element types, we just check the container type, not |
228 | the whole element's signature. */ | |
54371585 | 229 | CHECK_CONS (object); |
87cf1a39 MA |
230 | |
231 | if (EQ (QCdbus_type_array, XCAR (elt))) /* Type symbol is optional. */ | |
232 | elt = XD_NEXT_VALUE (elt); | |
233 | subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt)); | |
234 | xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt))); | |
235 | ||
236 | while (!NILP (elt)) | |
237 | { | |
238 | if (subtype != XD_OBJECT_TO_DBUS_TYPE (XCAR (elt))) | |
239 | wrong_type_argument (intern ("D-Bus"), XCAR (elt)); | |
240 | elt = XCDR (XD_NEXT_VALUE (elt)); | |
241 | } | |
242 | ||
243 | sprintf (signature, "%c%s", dtype, x); | |
54371585 | 244 | break; |
87cf1a39 | 245 | |
54371585 | 246 | case DBUS_TYPE_VARIANT: |
9af5078b | 247 | /* Check that there is exactly one list element. */ |
54371585 | 248 | CHECK_CONS (object); |
87cf1a39 MA |
249 | |
250 | elt = XD_NEXT_VALUE (elt); | |
251 | subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt)); | |
252 | xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt))); | |
253 | ||
254 | if (!NILP (XCDR (XD_NEXT_VALUE (elt)))) | |
255 | wrong_type_argument (intern ("D-Bus"), | |
256 | XCAR (XCDR (XD_NEXT_VALUE (elt)))); | |
257 | ||
a271e124 | 258 | sprintf (signature, "%c", dtype); |
54371585 | 259 | break; |
87cf1a39 | 260 | |
54371585 | 261 | case DBUS_TYPE_STRUCT: |
9af5078b MA |
262 | /* A struct list might contain any number of elements with |
263 | different types. No further check needed. */ | |
87cf1a39 MA |
264 | CHECK_CONS (object); |
265 | ||
266 | elt = XD_NEXT_VALUE (elt); | |
267 | ||
268 | /* Compose the signature from the elements. It is enclosed by | |
269 | parentheses. */ | |
270 | sprintf (signature, "%c", DBUS_STRUCT_BEGIN_CHAR ); | |
271 | while (!NILP (elt)) | |
272 | { | |
273 | subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt)); | |
274 | xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt))); | |
275 | strcat (signature, x); | |
276 | elt = XCDR (XD_NEXT_VALUE (elt)); | |
277 | } | |
278 | sprintf (signature, "%s%c", signature, DBUS_STRUCT_END_CHAR); | |
54371585 | 279 | break; |
54371585 | 280 | |
87cf1a39 | 281 | case DBUS_TYPE_DICT_ENTRY: |
9af5078b MA |
282 | /* Check that there are exactly two list elements, and the first |
283 | one is of basic type. The dictionary entry itself must be an | |
284 | element of an array. */ | |
87cf1a39 | 285 | CHECK_CONS (object); |
54371585 | 286 | |
9af5078b | 287 | /* Check the parent object type. */ |
87cf1a39 MA |
288 | if (parent_type != DBUS_TYPE_ARRAY) |
289 | wrong_type_argument (intern ("D-Bus"), object); | |
54371585 | 290 | |
87cf1a39 MA |
291 | /* Compose the signature from the elements. It is enclosed by |
292 | curly braces. */ | |
293 | sprintf (signature, "%c", DBUS_DICT_ENTRY_BEGIN_CHAR); | |
54371585 | 294 | |
87cf1a39 MA |
295 | /* First element. */ |
296 | elt = XD_NEXT_VALUE (elt); | |
297 | subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt)); | |
298 | xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt))); | |
299 | strcat (signature, x); | |
54371585 | 300 | |
87cf1a39 MA |
301 | if (!XD_BASIC_DBUS_TYPE (subtype)) |
302 | wrong_type_argument (intern ("D-Bus"), XCAR (XD_NEXT_VALUE (elt))); | |
54371585 | 303 | |
87cf1a39 MA |
304 | /* Second element. */ |
305 | elt = XCDR (XD_NEXT_VALUE (elt)); | |
306 | subtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (elt)); | |
307 | xd_signature (x, subtype, dtype, XCAR (XD_NEXT_VALUE (elt))); | |
308 | strcat (signature, x); | |
54371585 | 309 | |
87cf1a39 MA |
310 | if (!NILP (XCDR (XD_NEXT_VALUE (elt)))) |
311 | wrong_type_argument (intern ("D-Bus"), | |
312 | XCAR (XCDR (XD_NEXT_VALUE (elt)))); | |
54371585 | 313 | |
87cf1a39 MA |
314 | /* Closing signature. */ |
315 | sprintf (signature, "%s%c", signature, DBUS_DICT_ENTRY_END_CHAR); | |
316 | break; | |
54371585 | 317 | |
87cf1a39 MA |
318 | default: |
319 | wrong_type_argument (intern ("D-Bus"), object); | |
54371585 MA |
320 | } |
321 | ||
87cf1a39 MA |
322 | XD_DEBUG_MESSAGE ("%s", signature); |
323 | } | |
54371585 | 324 | |
87cf1a39 MA |
325 | /* Append C value, extracted from Lisp OBJECT, to iteration ITER. |
326 | DTYPE must be a valid DBusType. It is used to convert Lisp | |
327 | objects, being arguments of `dbus-call-method' or | |
328 | `dbus-send-signal', into corresponding C values appended as | |
329 | arguments to a D-Bus message. */ | |
330 | void | |
331 | xd_append_arg (dtype, object, iter) | |
332 | unsigned int dtype; | |
333 | Lisp_Object object; | |
334 | DBusMessageIter *iter; | |
335 | { | |
87cf1a39 MA |
336 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
337 | DBusMessageIter subiter; | |
87cf1a39 MA |
338 | |
339 | if (XD_BASIC_DBUS_TYPE (dtype)) | |
17bc8f94 MA |
340 | switch (dtype) |
341 | { | |
342 | case DBUS_TYPE_BYTE: | |
54371585 | 343 | { |
17bc8f94 MA |
344 | unsigned int val = XUINT (object) & 0xFF; |
345 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); | |
346 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
347 | xsignal2 (Qdbus_error, | |
348 | build_string ("Unable to append argument"), object); | |
349 | return; | |
350 | } | |
87cf1a39 | 351 | |
17bc8f94 MA |
352 | case DBUS_TYPE_BOOLEAN: |
353 | { | |
354 | dbus_bool_t val = (NILP (object)) ? FALSE : TRUE; | |
355 | XD_DEBUG_MESSAGE ("%c %s", dtype, (val == FALSE) ? "false" : "true"); | |
356 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
357 | xsignal2 (Qdbus_error, | |
358 | build_string ("Unable to append argument"), object); | |
359 | return; | |
360 | } | |
87cf1a39 | 361 | |
17bc8f94 MA |
362 | case DBUS_TYPE_INT16: |
363 | { | |
364 | dbus_int16_t val = XINT (object); | |
365 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); | |
366 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
367 | xsignal2 (Qdbus_error, | |
368 | build_string ("Unable to append argument"), object); | |
369 | return; | |
370 | } | |
87cf1a39 | 371 | |
17bc8f94 MA |
372 | case DBUS_TYPE_UINT16: |
373 | { | |
374 | dbus_uint16_t val = XUINT (object); | |
375 | XD_DEBUG_MESSAGE ("%c %u", dtype, (unsigned int) val); | |
376 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
377 | xsignal2 (Qdbus_error, | |
378 | build_string ("Unable to append argument"), object); | |
379 | return; | |
380 | } | |
87cf1a39 | 381 | |
17bc8f94 MA |
382 | case DBUS_TYPE_INT32: |
383 | { | |
384 | dbus_int32_t val = XINT (object); | |
385 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); | |
386 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
387 | xsignal2 (Qdbus_error, | |
388 | build_string ("Unable to append argument"), object); | |
389 | return; | |
390 | } | |
87cf1a39 | 391 | |
17bc8f94 MA |
392 | case DBUS_TYPE_UINT32: |
393 | { | |
394 | dbus_uint32_t val = XUINT (object); | |
395 | XD_DEBUG_MESSAGE ("%c %u", dtype, val); | |
396 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
397 | xsignal2 (Qdbus_error, | |
398 | build_string ("Unable to append argument"), object); | |
399 | return; | |
400 | } | |
87cf1a39 | 401 | |
17bc8f94 MA |
402 | case DBUS_TYPE_INT64: |
403 | { | |
404 | dbus_int64_t val = XINT (object); | |
405 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); | |
406 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
407 | xsignal2 (Qdbus_error, | |
408 | build_string ("Unable to append argument"), object); | |
409 | return; | |
410 | } | |
87cf1a39 | 411 | |
17bc8f94 MA |
412 | case DBUS_TYPE_UINT64: |
413 | { | |
414 | dbus_uint64_t val = XUINT (object); | |
415 | XD_DEBUG_MESSAGE ("%c %u", dtype, (unsigned int) val); | |
416 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
417 | xsignal2 (Qdbus_error, | |
418 | build_string ("Unable to append argument"), object); | |
419 | return; | |
54371585 | 420 | } |
87cf1a39 | 421 | |
17bc8f94 MA |
422 | case DBUS_TYPE_DOUBLE: |
423 | XD_DEBUG_MESSAGE ("%c %f", dtype, XFLOAT_DATA (object)); | |
424 | if (!dbus_message_iter_append_basic (iter, dtype, | |
425 | &XFLOAT_DATA (object))) | |
426 | xsignal2 (Qdbus_error, | |
427 | build_string ("Unable to append argument"), object); | |
428 | return; | |
429 | ||
430 | case DBUS_TYPE_STRING: | |
431 | case DBUS_TYPE_OBJECT_PATH: | |
432 | case DBUS_TYPE_SIGNATURE: | |
433 | { | |
434 | char *val = SDATA (object); | |
435 | XD_DEBUG_MESSAGE ("%c %s", dtype, val); | |
436 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
437 | xsignal2 (Qdbus_error, | |
438 | build_string ("Unable to append argument"), object); | |
439 | return; | |
440 | } | |
441 | } | |
87cf1a39 MA |
442 | |
443 | else /* Compound types. */ | |
444 | { | |
445 | ||
446 | /* All compound types except array have a type symbol. For | |
447 | array, it is optional. Skip it. */ | |
448 | if (!XD_BASIC_DBUS_TYPE (XD_OBJECT_TO_DBUS_TYPE (XCAR (object)))) | |
449 | object = XD_NEXT_VALUE (object); | |
450 | ||
451 | /* Open new subiteration. */ | |
452 | switch (dtype) | |
453 | { | |
454 | case DBUS_TYPE_ARRAY: | |
455 | case DBUS_TYPE_VARIANT: | |
456 | /* A variant has just one element. An array has elements of | |
9af5078b MA |
457 | the same type. Both have been checked already for |
458 | correct types, it is sufficient to retrieve just the | |
459 | signature of the first element. */ | |
87cf1a39 MA |
460 | xd_signature (signature, XD_OBJECT_TO_DBUS_TYPE (XCAR (object)), |
461 | dtype, XCAR (XD_NEXT_VALUE (object))); | |
462 | XD_DEBUG_MESSAGE ("%c %s %s", dtype, signature, | |
463 | SDATA (format2 ("%s", object, Qnil))); | |
464 | if (!dbus_message_iter_open_container (iter, dtype, | |
465 | signature, &subiter)) | |
466 | xsignal3 (Qdbus_error, | |
467 | build_string ("Cannot open container"), | |
468 | make_number (dtype), build_string (signature)); | |
469 | break; | |
470 | ||
471 | case DBUS_TYPE_STRUCT: | |
472 | case DBUS_TYPE_DICT_ENTRY: | |
9af5078b | 473 | /* These containers do not require a signature. */ |
87cf1a39 MA |
474 | XD_DEBUG_MESSAGE ("%c %s", dtype, |
475 | SDATA (format2 ("%s", object, Qnil))); | |
476 | if (!dbus_message_iter_open_container (iter, dtype, NULL, &subiter)) | |
477 | xsignal2 (Qdbus_error, | |
478 | build_string ("Cannot open container"), | |
479 | make_number (dtype)); | |
480 | break; | |
481 | } | |
482 | ||
483 | /* Loop over list elements. */ | |
484 | while (!NILP (object)) | |
485 | { | |
486 | dtype = XD_OBJECT_TO_DBUS_TYPE (XCAR (object)); | |
487 | object = XD_NEXT_VALUE (object); | |
488 | ||
489 | xd_append_arg (dtype, XCAR (object), &subiter); | |
490 | ||
491 | object = XCDR (object); | |
492 | } | |
493 | ||
9af5078b | 494 | /* Close the subiteration. */ |
87cf1a39 MA |
495 | if (!dbus_message_iter_close_container (iter, &subiter)) |
496 | xsignal2 (Qdbus_error, | |
497 | build_string ("Cannot close container"), | |
498 | make_number (dtype)); | |
499 | } | |
033b73e2 MA |
500 | } |
501 | ||
502 | /* Retrieve C value from a DBusMessageIter structure ITER, and return | |
503 | a converted Lisp object. The type DTYPE of the argument of the | |
9af5078b MA |
504 | D-Bus message must be a valid DBusType. Compound D-Bus types |
505 | result always in a Lisp list. */ | |
033b73e2 MA |
506 | Lisp_Object |
507 | xd_retrieve_arg (dtype, iter) | |
eb7c7bf5 | 508 | unsigned int dtype; |
033b73e2 MA |
509 | DBusMessageIter *iter; |
510 | { | |
511 | ||
512 | switch (dtype) | |
513 | { | |
9af5078b | 514 | case DBUS_TYPE_BYTE: |
9af5078b | 515 | { |
17bc8f94 | 516 | unsigned int val; |
9af5078b | 517 | dbus_message_iter_get_basic (iter, &val); |
17bc8f94 | 518 | val = val & 0xFF; |
9af5078b MA |
519 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
520 | return make_number (val); | |
521 | } | |
522 | ||
033b73e2 MA |
523 | case DBUS_TYPE_BOOLEAN: |
524 | { | |
525 | dbus_bool_t val; | |
526 | dbus_message_iter_get_basic (iter, &val); | |
87cf1a39 | 527 | XD_DEBUG_MESSAGE ("%c %s", dtype, (val == FALSE) ? "false" : "true"); |
033b73e2 MA |
528 | return (val == FALSE) ? Qnil : Qt; |
529 | } | |
87cf1a39 | 530 | |
17bc8f94 MA |
531 | case DBUS_TYPE_INT16: |
532 | case DBUS_TYPE_UINT16: | |
533 | { | |
534 | dbus_uint16_t val; | |
535 | dbus_message_iter_get_basic (iter, &val); | |
536 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); | |
537 | return make_number (val); | |
538 | } | |
539 | ||
033b73e2 MA |
540 | case DBUS_TYPE_INT32: |
541 | case DBUS_TYPE_UINT32: | |
542 | { | |
543 | dbus_uint32_t val; | |
544 | dbus_message_iter_get_basic (iter, &val); | |
17bc8f94 | 545 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
9af5078b MA |
546 | return make_fixnum_or_float (val); |
547 | } | |
548 | ||
549 | case DBUS_TYPE_INT64: | |
550 | case DBUS_TYPE_UINT64: | |
551 | { | |
552 | dbus_uint64_t val; | |
553 | dbus_message_iter_get_basic (iter, &val); | |
17bc8f94 | 554 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); |
9af5078b MA |
555 | return make_fixnum_or_float (val); |
556 | } | |
557 | ||
558 | case DBUS_TYPE_DOUBLE: | |
559 | { | |
560 | double val; | |
561 | dbus_message_iter_get_basic (iter, &val); | |
562 | XD_DEBUG_MESSAGE ("%c %f", dtype, val); | |
563 | return make_float (val); | |
033b73e2 | 564 | } |
87cf1a39 | 565 | |
033b73e2 MA |
566 | case DBUS_TYPE_STRING: |
567 | case DBUS_TYPE_OBJECT_PATH: | |
9af5078b | 568 | case DBUS_TYPE_SIGNATURE: |
033b73e2 MA |
569 | { |
570 | char *val; | |
571 | dbus_message_iter_get_basic (iter, &val); | |
87cf1a39 | 572 | XD_DEBUG_MESSAGE ("%c %s", dtype, val); |
033b73e2 MA |
573 | return build_string (val); |
574 | } | |
87cf1a39 | 575 | |
033b73e2 MA |
576 | case DBUS_TYPE_ARRAY: |
577 | case DBUS_TYPE_VARIANT: | |
578 | case DBUS_TYPE_STRUCT: | |
579 | case DBUS_TYPE_DICT_ENTRY: | |
580 | { | |
581 | Lisp_Object result; | |
582 | struct gcpro gcpro1; | |
583 | result = Qnil; | |
584 | GCPRO1 (result); | |
585 | DBusMessageIter subiter; | |
586 | int subtype; | |
587 | dbus_message_iter_recurse (iter, &subiter); | |
588 | while ((subtype = dbus_message_iter_get_arg_type (&subiter)) | |
589 | != DBUS_TYPE_INVALID) | |
590 | { | |
591 | result = Fcons (xd_retrieve_arg (subtype, &subiter), result); | |
592 | dbus_message_iter_next (&subiter); | |
593 | } | |
594 | RETURN_UNGCPRO (Fnreverse (result)); | |
595 | } | |
87cf1a39 | 596 | |
033b73e2 | 597 | default: |
87cf1a39 | 598 | XD_DEBUG_MESSAGE ("DBusType '%c' not supported", dtype); |
033b73e2 MA |
599 | return Qnil; |
600 | } | |
601 | } | |
602 | ||
603 | ||
604 | /* Initialize D-Bus connection. BUS is a Lisp symbol, either :system | |
605 | or :session. It tells which D-Bus to be initialized. */ | |
606 | DBusConnection * | |
607 | xd_initialize (bus) | |
608 | Lisp_Object bus; | |
609 | { | |
610 | DBusConnection *connection; | |
611 | DBusError derror; | |
612 | ||
613 | /* Parameter check. */ | |
614 | CHECK_SYMBOL (bus); | |
39abdd4a | 615 | if (!((EQ (bus, QCdbus_system_bus)) || (EQ (bus, QCdbus_session_bus)))) |
033b73e2 MA |
616 | xsignal2 (Qdbus_error, build_string ("Wrong bus name"), bus); |
617 | ||
618 | /* Open a connection to the bus. */ | |
619 | dbus_error_init (&derror); | |
620 | ||
39abdd4a | 621 | if (EQ (bus, QCdbus_system_bus)) |
033b73e2 MA |
622 | connection = dbus_bus_get (DBUS_BUS_SYSTEM, &derror); |
623 | else | |
624 | connection = dbus_bus_get (DBUS_BUS_SESSION, &derror); | |
625 | ||
626 | if (dbus_error_is_set (&derror)) | |
627 | XD_ERROR (derror); | |
628 | ||
629 | if (connection == NULL) | |
630 | xsignal2 (Qdbus_error, build_string ("No connection"), bus); | |
631 | ||
632 | /* Return the result. */ | |
633 | return connection; | |
634 | } | |
635 | ||
636 | DEFUN ("dbus-get-unique-name", Fdbus_get_unique_name, Sdbus_get_unique_name, | |
637 | 1, 1, 0, | |
638 | doc: /* Return the unique name of Emacs registered at D-Bus BUS as string. */) | |
639 | (bus) | |
640 | Lisp_Object bus; | |
641 | { | |
642 | DBusConnection *connection; | |
52da95fa | 643 | char name[DBUS_MAXIMUM_NAME_LENGTH]; |
033b73e2 MA |
644 | |
645 | /* Check parameters. */ | |
646 | CHECK_SYMBOL (bus); | |
647 | ||
648 | /* Open a connection to the bus. */ | |
649 | connection = xd_initialize (bus); | |
650 | ||
651 | /* Request the name. */ | |
652 | strcpy (name, dbus_bus_get_unique_name (connection)); | |
653 | if (name == NULL) | |
654 | xsignal1 (Qdbus_error, build_string ("No unique name available")); | |
655 | ||
656 | /* Return. */ | |
657 | return build_string (name); | |
658 | } | |
659 | ||
660 | DEFUN ("dbus-call-method", Fdbus_call_method, Sdbus_call_method, 5, MANY, 0, | |
661 | doc: /* Call METHOD on the D-Bus BUS. | |
662 | ||
663 | BUS is either the symbol `:system' or the symbol `:session'. | |
664 | ||
665 | SERVICE is the D-Bus service name to be used. PATH is the D-Bus | |
666 | object path SERVICE is registered at. INTERFACE is an interface | |
667 | offered by SERVICE. It must provide METHOD. | |
668 | ||
669 | All other arguments ARGS are passed to METHOD as arguments. They are | |
670 | converted into D-Bus types via the following rules: | |
671 | ||
672 | t and nil => DBUS_TYPE_BOOLEAN | |
673 | number => DBUS_TYPE_UINT32 | |
674 | integer => DBUS_TYPE_INT32 | |
675 | float => DBUS_TYPE_DOUBLE | |
676 | string => DBUS_TYPE_STRING | |
87cf1a39 | 677 | list => DBUS_TYPE_ARRAY |
033b73e2 | 678 | |
87cf1a39 MA |
679 | All arguments can be preceded by a type symbol. For details about |
680 | type symbols, see Info node `(dbus)Type Conversion'. | |
033b73e2 MA |
681 | |
682 | `dbus-call-method' returns the resulting values of METHOD as a list of | |
683 | Lisp objects. The type conversion happens the other direction as for | |
87cf1a39 MA |
684 | input arguments. It follows the mapping rules: |
685 | ||
686 | DBUS_TYPE_BOOLEAN => t or nil | |
687 | DBUS_TYPE_BYTE => number | |
688 | DBUS_TYPE_UINT16 => number | |
689 | DBUS_TYPE_INT16 => integer | |
9af5078b MA |
690 | DBUS_TYPE_UINT32 => number or float |
691 | DBUS_TYPE_INT32 => integer or float | |
692 | DBUS_TYPE_UINT64 => number or float | |
693 | DBUS_TYPE_INT64 => integer or float | |
87cf1a39 MA |
694 | DBUS_TYPE_DOUBLE => float |
695 | DBUS_TYPE_STRING => string | |
696 | DBUS_TYPE_OBJECT_PATH => string | |
697 | DBUS_TYPE_SIGNATURE => string | |
698 | DBUS_TYPE_ARRAY => list | |
699 | DBUS_TYPE_VARIANT => list | |
700 | DBUS_TYPE_STRUCT => list | |
701 | DBUS_TYPE_DICT_ENTRY => list | |
702 | ||
703 | Example: | |
033b73e2 MA |
704 | |
705 | \(dbus-call-method | |
52da95fa MA |
706 | :session "org.gnome.seahorse" "/org/gnome/seahorse/keys/openpgp" |
707 | "org.gnome.seahorse.Keys" "GetKeyField" | |
033b73e2 MA |
708 | "openpgp:657984B8C7A966DD" "simple-name") |
709 | ||
710 | => (t ("Philip R. Zimmermann")) | |
711 | ||
712 | If the result of the METHOD call is just one value, the converted Lisp | |
713 | object is returned instead of a list containing this single Lisp object. | |
714 | ||
715 | \(dbus-call-method | |
52da95fa MA |
716 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/devices/computer" |
717 | "org.freedesktop.Hal.Device" "GetPropertyString" | |
033b73e2 MA |
718 | "system.kernel.machine") |
719 | ||
720 | => "i686" | |
721 | ||
52da95fa | 722 | usage: (dbus-call-method BUS SERVICE PATH INTERFACE METHOD &rest ARGS) */) |
033b73e2 MA |
723 | (nargs, args) |
724 | int nargs; | |
725 | register Lisp_Object *args; | |
726 | { | |
52da95fa | 727 | Lisp_Object bus, service, path, interface, method; |
033b73e2 MA |
728 | Lisp_Object result; |
729 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
730 | DBusConnection *connection; | |
731 | DBusMessage *dmessage; | |
732 | DBusMessage *reply; | |
733 | DBusMessageIter iter; | |
734 | DBusError derror; | |
eb7c7bf5 | 735 | unsigned int dtype; |
033b73e2 | 736 | int i; |
87cf1a39 | 737 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
033b73e2 MA |
738 | |
739 | /* Check parameters. */ | |
740 | bus = args[0]; | |
52da95fa MA |
741 | service = args[1]; |
742 | path = args[2]; | |
743 | interface = args[3]; | |
744 | method = args[4]; | |
033b73e2 MA |
745 | |
746 | CHECK_SYMBOL (bus); | |
033b73e2 MA |
747 | CHECK_STRING (service); |
748 | CHECK_STRING (path); | |
749 | CHECK_STRING (interface); | |
52da95fa MA |
750 | CHECK_STRING (method); |
751 | GCPRO5 (bus, service, path, interface, method); | |
033b73e2 MA |
752 | |
753 | XD_DEBUG_MESSAGE ("%s %s %s %s", | |
033b73e2 MA |
754 | SDATA (service), |
755 | SDATA (path), | |
52da95fa MA |
756 | SDATA (interface), |
757 | SDATA (method)); | |
033b73e2 MA |
758 | |
759 | /* Open a connection to the bus. */ | |
760 | connection = xd_initialize (bus); | |
761 | ||
762 | /* Create the message. */ | |
f5306ca3 MA |
763 | dmessage = dbus_message_new_method_call ((char *) SDATA (service), |
764 | (char *) SDATA (path), | |
765 | (char *) SDATA (interface), | |
766 | (char *) SDATA (method)); | |
033b73e2 MA |
767 | if (dmessage == NULL) |
768 | { | |
769 | UNGCPRO; | |
770 | xsignal1 (Qdbus_error, build_string ("Unable to create a new message")); | |
771 | } | |
772 | ||
773 | UNGCPRO; | |
774 | ||
54371585 MA |
775 | /* Initialize parameter list of message. */ |
776 | dbus_message_iter_init_append (dmessage, &iter); | |
777 | ||
033b73e2 MA |
778 | /* Append parameters to the message. */ |
779 | for (i = 5; i < nargs; ++i) | |
780 | { | |
781 | ||
782 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
783 | XD_DEBUG_MESSAGE ("Parameter%d %s", | |
87cf1a39 | 784 | i-4, SDATA (format2 ("%s", args[i], Qnil))); |
033b73e2 | 785 | |
87cf1a39 MA |
786 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
787 | if (XD_DBUS_TYPE_P (args[i])) | |
54371585 | 788 | ++i; |
033b73e2 | 789 | |
87cf1a39 MA |
790 | /* Check for valid signature. We use DBUS_TYPE_INVALID is |
791 | indication that there is no parent type. */ | |
792 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
793 | ||
54371585 | 794 | xd_append_arg (dtype, args[i], &iter); |
033b73e2 MA |
795 | } |
796 | ||
797 | /* Send the message. */ | |
798 | dbus_error_init (&derror); | |
799 | reply = dbus_connection_send_with_reply_and_block (connection, | |
800 | dmessage, | |
801 | -1, | |
802 | &derror); | |
803 | ||
804 | if (dbus_error_is_set (&derror)) | |
805 | XD_ERROR (derror); | |
806 | ||
807 | if (reply == NULL) | |
808 | xsignal1 (Qdbus_error, build_string ("No reply")); | |
809 | ||
810 | XD_DEBUG_MESSAGE ("Message sent"); | |
811 | ||
812 | /* Collect the results. */ | |
813 | result = Qnil; | |
814 | GCPRO1 (result); | |
815 | ||
816 | if (!dbus_message_iter_init (reply, &iter)) | |
817 | { | |
818 | UNGCPRO; | |
819 | xsignal1 (Qdbus_error, build_string ("Cannot read reply")); | |
820 | } | |
821 | ||
822 | /* Loop over the parameters of the D-Bus reply message. Construct a | |
823 | Lisp list, which is returned by `dbus-call-method'. */ | |
824 | while ((dtype = dbus_message_iter_get_arg_type (&iter)) != DBUS_TYPE_INVALID) | |
825 | { | |
826 | result = Fcons (xd_retrieve_arg (dtype, &iter), result); | |
827 | dbus_message_iter_next (&iter); | |
828 | } | |
829 | ||
830 | /* Cleanup. */ | |
831 | dbus_message_unref (dmessage); | |
832 | dbus_message_unref (reply); | |
833 | ||
834 | /* Return the result. If there is only one single Lisp object, | |
835 | return it as-it-is, otherwise return the reversed list. */ | |
836 | if (XUINT (Flength (result)) == 1) | |
837 | RETURN_UNGCPRO (XCAR (result)); | |
838 | else | |
839 | RETURN_UNGCPRO (Fnreverse (result)); | |
840 | } | |
841 | ||
842 | DEFUN ("dbus-send-signal", Fdbus_send_signal, Sdbus_send_signal, 5, MANY, 0, | |
843 | doc: /* Send signal SIGNAL on the D-Bus BUS. | |
844 | ||
845 | BUS is either the symbol `:system' or the symbol `:session'. | |
846 | ||
847 | SERVICE is the D-Bus service name SIGNAL is sent from. PATH is the | |
848 | D-Bus object path SERVICE is registered at. INTERFACE is an interface | |
849 | offered by SERVICE. It must provide signal SIGNAL. | |
850 | ||
851 | All other arguments ARGS are passed to SIGNAL as arguments. They are | |
852 | converted into D-Bus types via the following rules: | |
853 | ||
854 | t and nil => DBUS_TYPE_BOOLEAN | |
855 | number => DBUS_TYPE_UINT32 | |
856 | integer => DBUS_TYPE_INT32 | |
857 | float => DBUS_TYPE_DOUBLE | |
858 | string => DBUS_TYPE_STRING | |
87cf1a39 | 859 | list => DBUS_TYPE_ARRAY |
033b73e2 | 860 | |
87cf1a39 MA |
861 | All arguments can be preceded by a type symbol. For details about |
862 | type symbols, see Info node `(dbus)Type Conversion'. | |
033b73e2 MA |
863 | |
864 | Example: | |
865 | ||
866 | \(dbus-send-signal | |
52da95fa MA |
867 | :session "org.gnu.Emacs" "/org/gnu/Emacs" |
868 | "org.gnu.Emacs.FileManager" "FileModified" "/home/albinus/.emacs") | |
033b73e2 | 869 | |
52da95fa | 870 | usage: (dbus-send-signal BUS SERVICE PATH INTERFACE SIGNAL &rest ARGS) */) |
033b73e2 MA |
871 | (nargs, args) |
872 | int nargs; | |
873 | register Lisp_Object *args; | |
874 | { | |
52da95fa | 875 | Lisp_Object bus, service, path, interface, signal; |
033b73e2 MA |
876 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
877 | DBusConnection *connection; | |
878 | DBusMessage *dmessage; | |
54371585 | 879 | DBusMessageIter iter; |
eb7c7bf5 | 880 | unsigned int dtype; |
033b73e2 | 881 | int i; |
87cf1a39 | 882 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
033b73e2 MA |
883 | |
884 | /* Check parameters. */ | |
885 | bus = args[0]; | |
52da95fa MA |
886 | service = args[1]; |
887 | path = args[2]; | |
888 | interface = args[3]; | |
889 | signal = args[4]; | |
033b73e2 MA |
890 | |
891 | CHECK_SYMBOL (bus); | |
033b73e2 MA |
892 | CHECK_STRING (service); |
893 | CHECK_STRING (path); | |
894 | CHECK_STRING (interface); | |
52da95fa MA |
895 | CHECK_STRING (signal); |
896 | GCPRO5 (bus, service, path, interface, signal); | |
033b73e2 MA |
897 | |
898 | XD_DEBUG_MESSAGE ("%s %s %s %s", | |
033b73e2 MA |
899 | SDATA (service), |
900 | SDATA (path), | |
52da95fa MA |
901 | SDATA (interface), |
902 | SDATA (signal)); | |
033b73e2 MA |
903 | |
904 | /* Open a connection to the bus. */ | |
905 | connection = xd_initialize (bus); | |
906 | ||
907 | /* Create the message. */ | |
f5306ca3 MA |
908 | dmessage = dbus_message_new_signal ((char *) SDATA (path), |
909 | (char *) SDATA (interface), | |
910 | (char *) SDATA (signal)); | |
033b73e2 MA |
911 | if (dmessage == NULL) |
912 | { | |
913 | UNGCPRO; | |
914 | xsignal1 (Qdbus_error, build_string ("Unable to create a new message")); | |
915 | } | |
916 | ||
917 | UNGCPRO; | |
918 | ||
54371585 MA |
919 | /* Initialize parameter list of message. */ |
920 | dbus_message_iter_init_append (dmessage, &iter); | |
921 | ||
033b73e2 MA |
922 | /* Append parameters to the message. */ |
923 | for (i = 5; i < nargs; ++i) | |
924 | { | |
925 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
926 | XD_DEBUG_MESSAGE ("Parameter%d %s", | |
87cf1a39 | 927 | i-4, SDATA (format2 ("%s", args[i], Qnil))); |
033b73e2 | 928 | |
87cf1a39 MA |
929 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
930 | if (XD_DBUS_TYPE_P (args[i])) | |
54371585 | 931 | ++i; |
033b73e2 | 932 | |
87cf1a39 MA |
933 | /* Check for valid signature. We use DBUS_TYPE_INVALID is |
934 | indication that there is no parent type. */ | |
935 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
936 | ||
54371585 | 937 | xd_append_arg (dtype, args[i], &iter); |
033b73e2 MA |
938 | } |
939 | ||
940 | /* Send the message. The message is just added to the outgoing | |
941 | message queue. */ | |
942 | if (!dbus_connection_send (connection, dmessage, NULL)) | |
943 | xsignal1 (Qdbus_error, build_string ("Cannot send message")); | |
944 | ||
945 | /* Flush connection to ensure the message is handled. */ | |
946 | dbus_connection_flush (connection); | |
947 | ||
948 | XD_DEBUG_MESSAGE ("Signal sent"); | |
949 | ||
950 | /* Cleanup. */ | |
951 | dbus_message_unref (dmessage); | |
952 | ||
953 | /* Return. */ | |
954 | return Qt; | |
955 | } | |
956 | ||
957 | /* Read queued incoming message of the D-Bus BUS. BUS is a Lisp | |
958 | symbol, either :system or :session. */ | |
96faeb40 | 959 | Lisp_Object |
033b73e2 MA |
960 | xd_read_message (bus) |
961 | Lisp_Object bus; | |
962 | { | |
a31d47c7 | 963 | Lisp_Object args, key, value; |
033b73e2 | 964 | struct gcpro gcpro1; |
15f16c1b | 965 | struct input_event event; |
033b73e2 MA |
966 | DBusConnection *connection; |
967 | DBusMessage *dmessage; | |
968 | DBusMessageIter iter; | |
eb7c7bf5 | 969 | unsigned int dtype; |
17bc8f94 | 970 | int mtype; |
a31d47c7 | 971 | char uname[DBUS_MAXIMUM_NAME_LENGTH]; |
52da95fa MA |
972 | char path[DBUS_MAXIMUM_MATCH_RULE_LENGTH]; /* Unlimited in D-Bus spec. */ |
973 | char interface[DBUS_MAXIMUM_NAME_LENGTH]; | |
974 | char member[DBUS_MAXIMUM_NAME_LENGTH]; | |
39abdd4a | 975 | |
033b73e2 MA |
976 | /* Open a connection to the bus. */ |
977 | connection = xd_initialize (bus); | |
978 | ||
979 | /* Non blocking read of the next available message. */ | |
980 | dbus_connection_read_write (connection, 0); | |
981 | dmessage = dbus_connection_pop_message (connection); | |
982 | ||
983 | /* Return if there is no queued message. */ | |
984 | if (dmessage == NULL) | |
17bc8f94 | 985 | return Qnil; |
033b73e2 MA |
986 | |
987 | /* Collect the parameters. */ | |
a31d47c7 MA |
988 | args = Qnil; |
989 | GCPRO1 (args); | |
033b73e2 | 990 | |
033b73e2 | 991 | /* Loop over the resulting parameters. Construct a list. */ |
17bc8f94 | 992 | if (dbus_message_iter_init (dmessage, &iter)) |
033b73e2 | 993 | { |
17bc8f94 MA |
994 | while ((dtype = dbus_message_iter_get_arg_type (&iter)) |
995 | != DBUS_TYPE_INVALID) | |
996 | { | |
997 | args = Fcons (xd_retrieve_arg (dtype, &iter), args); | |
998 | dbus_message_iter_next (&iter); | |
999 | } | |
1000 | /* The arguments are stored in reverse order. Reorder them. */ | |
1001 | args = Fnreverse (args); | |
033b73e2 MA |
1002 | } |
1003 | ||
17bc8f94 MA |
1004 | /* Read message type, unique name, object path, interface and member |
1005 | from the message. */ | |
1006 | mtype = dbus_message_get_type (dmessage); | |
a31d47c7 | 1007 | strcpy (uname, dbus_message_get_sender (dmessage)); |
39abdd4a MA |
1008 | strcpy (path, dbus_message_get_path (dmessage)); |
1009 | strcpy (interface, dbus_message_get_interface (dmessage)); | |
1010 | strcpy (member, dbus_message_get_member (dmessage)); | |
1011 | ||
17bc8f94 MA |
1012 | XD_DEBUG_MESSAGE ("Event received: %d %s %s %s %s %s", |
1013 | mtype, uname, path, interface, member, | |
1014 | SDATA (format2 ("%s", args, Qnil))); | |
1015 | ||
a31d47c7 MA |
1016 | /* Search for a registered function of the message. */ |
1017 | key = list3 (bus, build_string (interface), build_string (member)); | |
1018 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); | |
1019 | ||
1020 | /* Loop over the registered functions. Construct an event. */ | |
1021 | while (!NILP (value)) | |
1022 | { | |
1023 | key = XCAR (value); | |
f5306ca3 | 1024 | /* key has the structure (UNAME SERVICE PATH HANDLER). */ |
eb7c7bf5 | 1025 | if (((uname == NULL) |
f5306ca3 MA |
1026 | || (NILP (XCAR (key))) |
1027 | || (strcmp (uname, SDATA (XCAR (key))) == 0)) | |
eb7c7bf5 MA |
1028 | && ((path == NULL) |
1029 | || (NILP (XCAR (XCDR (XCDR (key))))) | |
1030 | || (strcmp (path, SDATA (XCAR (XCDR (XCDR (key))))) == 0)) | |
1031 | && (!NILP (XCAR (XCDR (XCDR (XCDR (key))))))) | |
a31d47c7 MA |
1032 | { |
1033 | EVENT_INIT (event); | |
1034 | event.kind = DBUS_EVENT; | |
1035 | event.frame_or_window = Qnil; | |
1036 | event.arg = Fcons (XCAR (XCDR (XCDR (XCDR (key)))), args); | |
1037 | ||
1038 | /* Add uname, path, interface and member to the event. */ | |
1039 | event.arg = Fcons ((member == NULL ? Qnil : build_string (member)), | |
1040 | event.arg); | |
1041 | event.arg = Fcons ((interface == NULL | |
1042 | ? Qnil : build_string (interface)), | |
1043 | event.arg); | |
1044 | event.arg = Fcons ((path == NULL ? Qnil : build_string (path)), | |
1045 | event.arg); | |
1046 | event.arg = Fcons ((uname == NULL ? Qnil : build_string (uname)), | |
1047 | event.arg); | |
1048 | ||
1049 | /* Add the bus symbol to the event. */ | |
1050 | event.arg = Fcons (bus, event.arg); | |
1051 | ||
1052 | /* Store it into the input event queue. */ | |
1053 | kbd_buffer_store_event (&event); | |
1054 | } | |
1055 | value = XCDR (value); | |
1056 | } | |
033b73e2 MA |
1057 | |
1058 | /* Cleanup. */ | |
1059 | dbus_message_unref (dmessage); | |
17bc8f94 | 1060 | RETURN_UNGCPRO (Qnil); |
033b73e2 MA |
1061 | } |
1062 | ||
1063 | /* Read queued incoming messages from the system and session buses. */ | |
1064 | void | |
1065 | xd_read_queued_messages () | |
1066 | { | |
96faeb40 | 1067 | |
f5306ca3 MA |
1068 | /* Vdbus_registered_functions_table will be initialized as hash |
1069 | table in dbus.el. When this package isn't loaded yet, it doesn't | |
1070 | make sense to handle D-Bus messages. Furthermore, we ignore all | |
1071 | Lisp errors during the call. */ | |
96faeb40 MA |
1072 | if (HASH_TABLE_P (Vdbus_registered_functions_table)) |
1073 | { | |
1074 | internal_condition_case_1 (xd_read_message, QCdbus_system_bus, | |
1075 | Qerror, Fidentity); | |
1076 | internal_condition_case_1 (xd_read_message, QCdbus_session_bus, | |
1077 | Qerror, Fidentity); | |
1078 | } | |
033b73e2 MA |
1079 | } |
1080 | ||
1081 | DEFUN ("dbus-register-signal", Fdbus_register_signal, Sdbus_register_signal, | |
1082 | 6, 6, 0, | |
1083 | doc: /* Register for signal SIGNAL on the D-Bus BUS. | |
1084 | ||
1085 | BUS is either the symbol `:system' or the symbol `:session'. | |
1086 | ||
39abdd4a MA |
1087 | SERVICE is the D-Bus service name used by the sending D-Bus object. |
1088 | It can be either a known name or the unique name of the D-Bus object | |
1089 | sending the signal. When SERVICE is nil, related signals from all | |
1090 | D-Bus objects shall be accepted. | |
033b73e2 | 1091 | |
39abdd4a MA |
1092 | PATH is the D-Bus object path SERVICE is registered. It can also be |
1093 | nil if the path name of incoming signals shall not be checked. | |
033b73e2 | 1094 | |
39abdd4a MA |
1095 | INTERFACE is an interface offered by SERVICE. It must provide SIGNAL. |
1096 | HANDLER is a Lisp function to be called when the signal is received. | |
1097 | It must accept as arguments the values SIGNAL is sending. INTERFACE, | |
1098 | SIGNAL and HANDLER must not be nil. Example: | |
033b73e2 MA |
1099 | |
1100 | \(defun my-signal-handler (device) | |
1101 | (message "Device %s added" device)) | |
1102 | ||
1103 | \(dbus-register-signal | |
52da95fa MA |
1104 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/Manager" |
1105 | "org.freedesktop.Hal.Manager" "DeviceAdded" 'my-signal-handler) | |
033b73e2 | 1106 | |
f5306ca3 MA |
1107 | => ((:system "org.freedesktop.Hal.Manager" "DeviceAdded") |
1108 | ("org.freedesktop.Hal" "/org/freedesktop/Hal/Manager" my-signal-handler)) | |
033b73e2 MA |
1109 | |
1110 | `dbus-register-signal' returns an object, which can be used in | |
17bc8f94 | 1111 | `dbus-unregister-object' for removing the registration. */) |
52da95fa MA |
1112 | (bus, service, path, interface, signal, handler) |
1113 | Lisp_Object bus, service, path, interface, signal, handler; | |
033b73e2 | 1114 | { |
17bc8f94 | 1115 | Lisp_Object uname, key, key1, value; |
033b73e2 | 1116 | DBusConnection *connection; |
52da95fa | 1117 | char rule[DBUS_MAXIMUM_MATCH_RULE_LENGTH]; |
39abdd4a | 1118 | DBusError derror; |
033b73e2 MA |
1119 | |
1120 | /* Check parameters. */ | |
1121 | CHECK_SYMBOL (bus); | |
39abdd4a MA |
1122 | if (!NILP (service)) CHECK_STRING (service); |
1123 | if (!NILP (path)) CHECK_STRING (path); | |
033b73e2 | 1124 | CHECK_STRING (interface); |
52da95fa | 1125 | CHECK_STRING (signal); |
17bc8f94 MA |
1126 | if (!FUNCTIONP (handler)) |
1127 | wrong_type_argument (intern ("functionp"), handler); | |
033b73e2 | 1128 | |
52da95fa MA |
1129 | /* Retrieve unique name of service. If service is a known name, we |
1130 | will register for the corresponding unique name, if any. Signals | |
1131 | are sent always with the unique name as sender. Note: the unique | |
1132 | name of "org.freedesktop.DBus" is that string itself. */ | |
eb7c7bf5 MA |
1133 | if ((!NILP (service)) |
1134 | && (strlen (SDATA (service)) > 0) | |
1135 | && (strcmp (SDATA (service), DBUS_SERVICE_DBUS) != 0) | |
1136 | && (strncmp (SDATA (service), ":", 1) != 0)) | |
f5306ca3 MA |
1137 | { |
1138 | uname = call2 (intern ("dbus-get-name-owner"), bus, service); | |
1139 | /* When there is no unique name, we mark it with an empty | |
1140 | string. */ | |
1141 | if (NILP (uname)) | |
1142 | uname = build_string (""); | |
1143 | } | |
52da95fa | 1144 | else |
f5306ca3 | 1145 | uname = service; |
52da95fa | 1146 | |
f5306ca3 MA |
1147 | /* Create a matching rule if the unique name exists (when no |
1148 | wildcard). */ | |
1149 | if (NILP (uname) || (strlen (SDATA (uname)) > 0)) | |
1150 | { | |
1151 | /* Open a connection to the bus. */ | |
1152 | connection = xd_initialize (bus); | |
033b73e2 | 1153 | |
f5306ca3 MA |
1154 | /* Create a rule to receive related signals. */ |
1155 | sprintf (rule, | |
1156 | "type='signal',interface='%s',member='%s'", | |
1157 | SDATA (interface), | |
1158 | SDATA (signal)); | |
033b73e2 | 1159 | |
f5306ca3 MA |
1160 | /* Add unique name and path to the rule if they are non-nil. */ |
1161 | if (!NILP (uname)) | |
1162 | sprintf (rule, "%s,sender='%s'", rule, SDATA (uname)); | |
39abdd4a | 1163 | |
f5306ca3 MA |
1164 | if (!NILP (path)) |
1165 | sprintf (rule, "%s,path='%s'", rule, SDATA (path)); | |
39abdd4a | 1166 | |
f5306ca3 MA |
1167 | /* Add the rule to the bus. */ |
1168 | dbus_error_init (&derror); | |
1169 | dbus_bus_add_match (connection, rule, &derror); | |
1170 | if (dbus_error_is_set (&derror)) | |
1171 | XD_ERROR (derror); | |
033b73e2 | 1172 | |
f5306ca3 MA |
1173 | XD_DEBUG_MESSAGE ("Matching rule \"%s\" created", rule); |
1174 | } | |
033b73e2 | 1175 | |
39abdd4a | 1176 | /* Create a hash table entry. */ |
a31d47c7 | 1177 | key = list3 (bus, interface, signal); |
17bc8f94 MA |
1178 | key1 = list4 (uname, service, path, handler); |
1179 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); | |
1180 | ||
1181 | if (NILP (Fmember (key1, value))) | |
1182 | Fputhash (key, Fcons (key1, value), Vdbus_registered_functions_table); | |
1183 | ||
1184 | /* Return object. */ | |
1185 | return list2 (key, list3 (service, path, handler)); | |
1186 | } | |
1187 | ||
1188 | DEFUN ("dbus-register-method", Fdbus_register_method, Sdbus_register_method, | |
1189 | 6, 6, 0, | |
1190 | doc: /* Register for method METHOD on the D-Bus BUS. | |
1191 | ||
1192 | BUS is either the symbol `:system' or the symbol `:session'. | |
1193 | ||
1194 | SERVICE is the D-Bus service name of the D-Bus object METHOD is | |
1195 | registered for. It must be a known name. | |
1196 | ||
1197 | PATH is the D-Bus object path SERVICE is registered. INTERFACE is the | |
1198 | interface offered by SERVICE. It must provide METHOD. HANDLER is a | |
1199 | Lisp function to be called when a method call is received. It must | |
1200 | accept the input arguments of METHOD. The return value of HANDLER is | |
1201 | used for composing the returning D-Bus message. | |
1202 | ||
1203 | The function is not fully implemented and documented. Don't use it. */) | |
1204 | (bus, service, path, interface, method, handler) | |
1205 | Lisp_Object bus, service, path, interface, method, handler; | |
1206 | { | |
1207 | Lisp_Object key, key1, value; | |
1208 | DBusConnection *connection; | |
1209 | int result; | |
1210 | DBusError derror; | |
1211 | ||
1212 | if (NILP (Vdbus_debug)) | |
1213 | xsignal1 (Qdbus_error, build_string ("Not implemented yet")); | |
1214 | ||
1215 | /* Check parameters. */ | |
1216 | CHECK_SYMBOL (bus); | |
1217 | CHECK_STRING (service); | |
1218 | CHECK_STRING (path); | |
1219 | CHECK_STRING (interface); | |
1220 | CHECK_STRING (method); | |
1221 | if (!FUNCTIONP (handler)) | |
1222 | wrong_type_argument (intern ("functionp"), handler); | |
1223 | /* TODO: We must check for a valid service name, otherwise there is | |
1224 | a segmentation fault. */ | |
1225 | ||
1226 | /* Open a connection to the bus. */ | |
1227 | connection = xd_initialize (bus); | |
1228 | ||
1229 | /* Request the known name from the bus. We can ignore the result, | |
1230 | it is set to -1 if there is an error - kind of redundancy. */ | |
1231 | dbus_error_init (&derror); | |
1232 | result = dbus_bus_request_name (connection, SDATA (service), 0, &derror); | |
1233 | if (dbus_error_is_set (&derror)) | |
1234 | XD_ERROR (derror); | |
1235 | ||
1236 | /* Create a hash table entry. */ | |
1237 | key = list3 (bus, interface, method); | |
1238 | key1 = list4 (Qnil, service, path, handler); | |
a31d47c7 MA |
1239 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); |
1240 | ||
17bc8f94 MA |
1241 | /* We use nil for the unique name, because the method might be |
1242 | called from everybody. */ | |
1243 | if (NILP (Fmember (key1, value))) | |
1244 | Fputhash (key, Fcons (key1, value), Vdbus_registered_functions_table); | |
033b73e2 | 1245 | |
f5306ca3 MA |
1246 | /* Return object. */ |
1247 | return list2 (key, list3 (service, path, handler)); | |
033b73e2 MA |
1248 | } |
1249 | ||
17bc8f94 | 1250 | DEFUN ("dbus-unregister-object", Fdbus_unregister_object, Sdbus_unregister_object, |
033b73e2 MA |
1251 | 1, 1, 0, |
1252 | doc: /* Unregister OBJECT from the D-Bus. | |
17bc8f94 MA |
1253 | OBJECT must be the result of a preceding `dbus-register-signal' or |
1254 | `dbus-register-method' call. It returns t if OBJECT has been | |
1255 | unregistered, nil otherwise. */) | |
033b73e2 MA |
1256 | (object) |
1257 | Lisp_Object object; | |
1258 | { | |
f5306ca3 MA |
1259 | Lisp_Object value; |
1260 | struct gcpro gcpro1; | |
033b73e2 | 1261 | |
f5306ca3 | 1262 | /* Check parameter. */ |
17bc8f94 MA |
1263 | if (!(CONSP (object) && (!NILP (XCAR (object))) && CONSP (XCDR (object)))) |
1264 | wrong_type_argument (intern ("D-Bus"), object); | |
f5306ca3 MA |
1265 | |
1266 | /* Find the corresponding entry in the hash table. */ | |
1267 | value = Fgethash (XCAR (object), Vdbus_registered_functions_table, Qnil); | |
1268 | ||
1269 | /* Loop over the registered functions. */ | |
1270 | while (!NILP (value)) | |
1271 | { | |
1272 | GCPRO1 (value); | |
1273 | ||
1274 | /* (car value) has the structure (UNAME SERVICE PATH HANDLER). | |
1275 | (cdr object) has the structure ((SERVICE PATH HANDLER) ...). */ | |
1276 | if (!NILP (Fequal (XCDR (XCAR (value)), XCAR (XCDR (object))))) | |
1277 | { | |
1278 | /* Compute new hash value. */ | |
1279 | value = Fdelete (XCAR (value), | |
1280 | Fgethash (XCAR (object), | |
1281 | Vdbus_registered_functions_table, Qnil)); | |
1282 | if (NILP (value)) | |
1283 | Fremhash (XCAR (object), Vdbus_registered_functions_table); | |
1284 | else | |
1285 | Fputhash (XCAR (object), value, Vdbus_registered_functions_table); | |
1286 | RETURN_UNGCPRO (Qt); | |
1287 | } | |
1288 | UNGCPRO; | |
1289 | value = XCDR (value); | |
1290 | } | |
033b73e2 MA |
1291 | |
1292 | /* Return. */ | |
1293 | return Qnil; | |
1294 | } | |
1295 | ||
1296 | \f | |
1297 | void | |
1298 | syms_of_dbusbind () | |
1299 | { | |
1300 | ||
1301 | Qdbus_get_unique_name = intern ("dbus-get-unique-name"); | |
1302 | staticpro (&Qdbus_get_unique_name); | |
1303 | defsubr (&Sdbus_get_unique_name); | |
1304 | ||
1305 | Qdbus_call_method = intern ("dbus-call-method"); | |
1306 | staticpro (&Qdbus_call_method); | |
1307 | defsubr (&Sdbus_call_method); | |
1308 | ||
1309 | Qdbus_send_signal = intern ("dbus-send-signal"); | |
1310 | staticpro (&Qdbus_send_signal); | |
1311 | defsubr (&Sdbus_send_signal); | |
1312 | ||
1313 | Qdbus_register_signal = intern ("dbus-register-signal"); | |
1314 | staticpro (&Qdbus_register_signal); | |
1315 | defsubr (&Sdbus_register_signal); | |
1316 | ||
17bc8f94 MA |
1317 | Qdbus_register_method = intern ("dbus-register-method"); |
1318 | staticpro (&Qdbus_register_method); | |
1319 | defsubr (&Sdbus_register_method); | |
1320 | ||
1321 | Qdbus_unregister_object = intern ("dbus-unregister-object"); | |
1322 | staticpro (&Qdbus_unregister_object); | |
1323 | defsubr (&Sdbus_unregister_object); | |
033b73e2 MA |
1324 | |
1325 | Qdbus_error = intern ("dbus-error"); | |
1326 | staticpro (&Qdbus_error); | |
1327 | Fput (Qdbus_error, Qerror_conditions, | |
1328 | list2 (Qdbus_error, Qerror)); | |
1329 | Fput (Qdbus_error, Qerror_message, | |
1330 | build_string ("D-Bus error")); | |
1331 | ||
39abdd4a MA |
1332 | QCdbus_system_bus = intern (":system"); |
1333 | staticpro (&QCdbus_system_bus); | |
1334 | ||
1335 | QCdbus_session_bus = intern (":session"); | |
1336 | staticpro (&QCdbus_session_bus); | |
033b73e2 | 1337 | |
54371585 MA |
1338 | QCdbus_type_byte = intern (":byte"); |
1339 | staticpro (&QCdbus_type_byte); | |
1340 | ||
1341 | QCdbus_type_boolean = intern (":boolean"); | |
1342 | staticpro (&QCdbus_type_boolean); | |
1343 | ||
1344 | QCdbus_type_int16 = intern (":int16"); | |
1345 | staticpro (&QCdbus_type_int16); | |
1346 | ||
1347 | QCdbus_type_uint16 = intern (":uint16"); | |
1348 | staticpro (&QCdbus_type_uint16); | |
1349 | ||
1350 | QCdbus_type_int32 = intern (":int32"); | |
1351 | staticpro (&QCdbus_type_int32); | |
1352 | ||
1353 | QCdbus_type_uint32 = intern (":uint32"); | |
1354 | staticpro (&QCdbus_type_uint32); | |
1355 | ||
1356 | QCdbus_type_int64 = intern (":int64"); | |
1357 | staticpro (&QCdbus_type_int64); | |
1358 | ||
1359 | QCdbus_type_uint64 = intern (":uint64"); | |
1360 | staticpro (&QCdbus_type_uint64); | |
1361 | ||
1362 | QCdbus_type_double = intern (":double"); | |
1363 | staticpro (&QCdbus_type_double); | |
1364 | ||
1365 | QCdbus_type_string = intern (":string"); | |
1366 | staticpro (&QCdbus_type_string); | |
1367 | ||
1368 | QCdbus_type_object_path = intern (":object-path"); | |
1369 | staticpro (&QCdbus_type_object_path); | |
1370 | ||
1371 | QCdbus_type_signature = intern (":signature"); | |
1372 | staticpro (&QCdbus_type_signature); | |
1373 | ||
1374 | QCdbus_type_array = intern (":array"); | |
1375 | staticpro (&QCdbus_type_array); | |
1376 | ||
1377 | QCdbus_type_variant = intern (":variant"); | |
1378 | staticpro (&QCdbus_type_variant); | |
1379 | ||
1380 | QCdbus_type_struct = intern (":struct"); | |
1381 | staticpro (&QCdbus_type_struct); | |
1382 | ||
1383 | QCdbus_type_dict_entry = intern (":dict-entry"); | |
1384 | staticpro (&QCdbus_type_dict_entry); | |
1385 | ||
39abdd4a MA |
1386 | DEFVAR_LISP ("dbus-registered-functions-table", &Vdbus_registered_functions_table, |
1387 | doc: /* Hash table of registered functions for D-Bus. | |
f5306ca3 | 1388 | The key in the hash table is the list (BUS INTERFACE MEMBER). BUS is |
a31d47c7 MA |
1389 | either the symbol `:system' or the symbol `:session'. INTERFACE is a |
1390 | string which denotes a D-Bus interface, and MEMBER, also a string, is | |
1391 | either a method or a signal INTERFACE is offering. All arguments but | |
1392 | BUS must not be nil. | |
1393 | ||
f5306ca3 MA |
1394 | The value in the hash table is a list of quadruple lists |
1395 | \((UNAME SERVICE PATH HANDLER) (UNAME SERVICE PATH HANDLER) ...). | |
a31d47c7 MA |
1396 | SERVICE is the service name as registered, UNAME is the corresponding |
1397 | unique name. PATH is the object path of the sending object. All of | |
f5306ca3 MA |
1398 | them can be nil, which means a wildcard then. HANDLER is the function |
1399 | to be called when a D-Bus message, which matches the key criteria, | |
a31d47c7 | 1400 | arrives. */); |
39abdd4a MA |
1401 | /* We initialize Vdbus_registered_functions_table in dbus.el, |
1402 | because we need to define a hash table function first. */ | |
1403 | Vdbus_registered_functions_table = Qnil; | |
033b73e2 MA |
1404 | |
1405 | DEFVAR_LISP ("dbus-debug", &Vdbus_debug, | |
39abdd4a | 1406 | doc: /* If non-nil, debug messages of D-Bus bindings are raised. */); |
033b73e2 MA |
1407 | #ifdef DBUS_DEBUG |
1408 | Vdbus_debug = Qt; | |
1409 | #else | |
1410 | Vdbus_debug = Qnil; | |
1411 | #endif | |
1412 | ||
1413 | Fprovide (intern ("dbusbind"), Qnil); | |
1414 | ||
1415 | } | |
1416 | ||
1417 | #endif /* HAVE_DBUS */ | |
79f10da0 MB |
1418 | |
1419 | /* arch-tag: 0e828477-b571-4fe4-b559-5c9211bc14b8 | |
1420 | (do not change this comment) */ |