Commit | Line | Data |
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033b73e2 | 1 | /* Elisp bindings for D-Bus. |
8bba1b5c | 2 | Copyright (C) 2007, 2008 Free Software Foundation, Inc. |
033b73e2 MA |
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; | |
8c7a4ac5 | 36 | Lisp_Object Qdbus_method_return_internal; |
033b73e2 MA |
37 | Lisp_Object Qdbus_send_signal; |
38 | Lisp_Object Qdbus_register_signal; | |
17bc8f94 | 39 | Lisp_Object Qdbus_register_method; |
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) \ | |
5125905e MA |
162 | : (CONSP (object)) ? ((XD_DBUS_TYPE_P (CAR_SAFE (object))) \ |
163 | ? XD_SYMBOL_TO_DBUS_TYPE (CAR_SAFE (object)) \ | |
87cf1a39 MA |
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) \ | |
5125905e | 169 | ((XD_DBUS_TYPE_P (CAR_SAFE (object))) ? CDR_SAFE (object) : object) |
87cf1a39 MA |
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 | 230 | |
5125905e MA |
231 | /* Type symbol is optional. */ |
232 | if (EQ (QCdbus_type_array, CAR_SAFE (elt))) | |
87cf1a39 | 233 | elt = XD_NEXT_VALUE (elt); |
5125905e MA |
234 | |
235 | /* If the array is empty, DBUS_TYPE_STRING is the default | |
236 | element type. */ | |
237 | if (NILP (elt)) | |
238 | { | |
239 | subtype = DBUS_TYPE_STRING; | |
240 | strcpy (x, DBUS_TYPE_STRING_AS_STRING); | |
241 | } | |
242 | else | |
243 | { | |
244 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); | |
245 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
246 | } | |
247 | ||
248 | /* If the element type is DBUS_TYPE_SIGNATURE, and this is the | |
249 | only element, the value of this element is used as he array's | |
250 | element signature. */ | |
251 | if ((subtype == DBUS_TYPE_SIGNATURE) | |
252 | && STRINGP (CAR_SAFE (XD_NEXT_VALUE (elt))) | |
253 | && NILP (CDR_SAFE (XD_NEXT_VALUE (elt)))) | |
254 | strcpy (x, SDATA (CAR_SAFE (XD_NEXT_VALUE (elt)))); | |
87cf1a39 MA |
255 | |
256 | while (!NILP (elt)) | |
257 | { | |
5125905e MA |
258 | if (subtype != XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt))) |
259 | wrong_type_argument (intern ("D-Bus"), CAR_SAFE (elt)); | |
260 | elt = CDR_SAFE (XD_NEXT_VALUE (elt)); | |
87cf1a39 MA |
261 | } |
262 | ||
263 | sprintf (signature, "%c%s", dtype, x); | |
54371585 | 264 | break; |
87cf1a39 | 265 | |
54371585 | 266 | case DBUS_TYPE_VARIANT: |
9af5078b | 267 | /* Check that there is exactly one list element. */ |
54371585 | 268 | CHECK_CONS (object); |
87cf1a39 MA |
269 | |
270 | elt = XD_NEXT_VALUE (elt); | |
5125905e MA |
271 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
272 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
87cf1a39 | 273 | |
5125905e | 274 | if (!NILP (CDR_SAFE (XD_NEXT_VALUE (elt)))) |
87cf1a39 | 275 | wrong_type_argument (intern ("D-Bus"), |
5125905e | 276 | CAR_SAFE (CDR_SAFE (XD_NEXT_VALUE (elt)))); |
87cf1a39 | 277 | |
a271e124 | 278 | sprintf (signature, "%c", dtype); |
54371585 | 279 | break; |
87cf1a39 | 280 | |
54371585 | 281 | case DBUS_TYPE_STRUCT: |
9af5078b MA |
282 | /* A struct list might contain any number of elements with |
283 | different types. No further check needed. */ | |
87cf1a39 MA |
284 | CHECK_CONS (object); |
285 | ||
286 | elt = XD_NEXT_VALUE (elt); | |
287 | ||
288 | /* Compose the signature from the elements. It is enclosed by | |
289 | parentheses. */ | |
290 | sprintf (signature, "%c", DBUS_STRUCT_BEGIN_CHAR ); | |
291 | while (!NILP (elt)) | |
292 | { | |
5125905e MA |
293 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
294 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
87cf1a39 | 295 | strcat (signature, x); |
5125905e | 296 | elt = CDR_SAFE (XD_NEXT_VALUE (elt)); |
87cf1a39 MA |
297 | } |
298 | sprintf (signature, "%s%c", signature, DBUS_STRUCT_END_CHAR); | |
54371585 | 299 | break; |
54371585 | 300 | |
87cf1a39 | 301 | case DBUS_TYPE_DICT_ENTRY: |
9af5078b MA |
302 | /* Check that there are exactly two list elements, and the first |
303 | one is of basic type. The dictionary entry itself must be an | |
304 | element of an array. */ | |
87cf1a39 | 305 | CHECK_CONS (object); |
54371585 | 306 | |
9af5078b | 307 | /* Check the parent object type. */ |
87cf1a39 MA |
308 | if (parent_type != DBUS_TYPE_ARRAY) |
309 | wrong_type_argument (intern ("D-Bus"), object); | |
54371585 | 310 | |
87cf1a39 MA |
311 | /* Compose the signature from the elements. It is enclosed by |
312 | curly braces. */ | |
313 | sprintf (signature, "%c", DBUS_DICT_ENTRY_BEGIN_CHAR); | |
54371585 | 314 | |
87cf1a39 MA |
315 | /* First element. */ |
316 | elt = XD_NEXT_VALUE (elt); | |
5125905e MA |
317 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
318 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
87cf1a39 | 319 | strcat (signature, x); |
54371585 | 320 | |
87cf1a39 | 321 | if (!XD_BASIC_DBUS_TYPE (subtype)) |
5125905e | 322 | wrong_type_argument (intern ("D-Bus"), CAR_SAFE (XD_NEXT_VALUE (elt))); |
54371585 | 323 | |
87cf1a39 | 324 | /* Second element. */ |
5125905e MA |
325 | elt = CDR_SAFE (XD_NEXT_VALUE (elt)); |
326 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); | |
327 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
87cf1a39 | 328 | strcat (signature, x); |
54371585 | 329 | |
5125905e | 330 | if (!NILP (CDR_SAFE (XD_NEXT_VALUE (elt)))) |
87cf1a39 | 331 | wrong_type_argument (intern ("D-Bus"), |
5125905e | 332 | CAR_SAFE (CDR_SAFE (XD_NEXT_VALUE (elt)))); |
54371585 | 333 | |
87cf1a39 MA |
334 | /* Closing signature. */ |
335 | sprintf (signature, "%s%c", signature, DBUS_DICT_ENTRY_END_CHAR); | |
336 | break; | |
54371585 | 337 | |
87cf1a39 MA |
338 | default: |
339 | wrong_type_argument (intern ("D-Bus"), object); | |
54371585 MA |
340 | } |
341 | ||
87cf1a39 MA |
342 | XD_DEBUG_MESSAGE ("%s", signature); |
343 | } | |
54371585 | 344 | |
87cf1a39 MA |
345 | /* Append C value, extracted from Lisp OBJECT, to iteration ITER. |
346 | DTYPE must be a valid DBusType. It is used to convert Lisp | |
347 | objects, being arguments of `dbus-call-method' or | |
348 | `dbus-send-signal', into corresponding C values appended as | |
349 | arguments to a D-Bus message. */ | |
350 | void | |
351 | xd_append_arg (dtype, object, iter) | |
352 | unsigned int dtype; | |
353 | Lisp_Object object; | |
354 | DBusMessageIter *iter; | |
355 | { | |
87cf1a39 MA |
356 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
357 | DBusMessageIter subiter; | |
87cf1a39 MA |
358 | |
359 | if (XD_BASIC_DBUS_TYPE (dtype)) | |
17bc8f94 MA |
360 | switch (dtype) |
361 | { | |
362 | case DBUS_TYPE_BYTE: | |
54371585 | 363 | { |
8bba1b5c | 364 | unsigned char val = XUINT (object) & 0xFF; |
17bc8f94 MA |
365 | XD_DEBUG_MESSAGE ("%c %d", dtype, 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_BOOLEAN: |
373 | { | |
374 | dbus_bool_t val = (NILP (object)) ? FALSE : TRUE; | |
375 | XD_DEBUG_MESSAGE ("%c %s", dtype, (val == FALSE) ? "false" : "true"); | |
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_INT16: |
383 | { | |
384 | dbus_int16_t val = XINT (object); | |
385 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) 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_UINT16: |
393 | { | |
394 | dbus_uint16_t val = XUINT (object); | |
395 | XD_DEBUG_MESSAGE ("%c %u", dtype, (unsigned int) 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_INT32: |
403 | { | |
404 | dbus_int32_t val = XINT (object); | |
405 | XD_DEBUG_MESSAGE ("%c %d", dtype, 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_UINT32: |
413 | { | |
414 | dbus_uint32_t val = XUINT (object); | |
415 | XD_DEBUG_MESSAGE ("%c %u", dtype, 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; | |
420 | } | |
87cf1a39 | 421 | |
17bc8f94 MA |
422 | case DBUS_TYPE_INT64: |
423 | { | |
424 | dbus_int64_t val = XINT (object); | |
425 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); | |
426 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
427 | xsignal2 (Qdbus_error, | |
428 | build_string ("Unable to append argument"), object); | |
429 | return; | |
430 | } | |
87cf1a39 | 431 | |
17bc8f94 MA |
432 | case DBUS_TYPE_UINT64: |
433 | { | |
434 | dbus_uint64_t val = XUINT (object); | |
435 | XD_DEBUG_MESSAGE ("%c %u", dtype, (unsigned int) 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; | |
54371585 | 440 | } |
87cf1a39 | 441 | |
17bc8f94 MA |
442 | case DBUS_TYPE_DOUBLE: |
443 | XD_DEBUG_MESSAGE ("%c %f", dtype, XFLOAT_DATA (object)); | |
444 | if (!dbus_message_iter_append_basic (iter, dtype, | |
445 | &XFLOAT_DATA (object))) | |
446 | xsignal2 (Qdbus_error, | |
447 | build_string ("Unable to append argument"), object); | |
448 | return; | |
449 | ||
450 | case DBUS_TYPE_STRING: | |
451 | case DBUS_TYPE_OBJECT_PATH: | |
452 | case DBUS_TYPE_SIGNATURE: | |
453 | { | |
454 | char *val = SDATA (object); | |
455 | XD_DEBUG_MESSAGE ("%c %s", dtype, val); | |
456 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
457 | xsignal2 (Qdbus_error, | |
458 | build_string ("Unable to append argument"), object); | |
459 | return; | |
460 | } | |
461 | } | |
87cf1a39 MA |
462 | |
463 | else /* Compound types. */ | |
464 | { | |
465 | ||
466 | /* All compound types except array have a type symbol. For | |
467 | array, it is optional. Skip it. */ | |
5125905e | 468 | if (!XD_BASIC_DBUS_TYPE (XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)))) |
87cf1a39 MA |
469 | object = XD_NEXT_VALUE (object); |
470 | ||
471 | /* Open new subiteration. */ | |
472 | switch (dtype) | |
473 | { | |
474 | case DBUS_TYPE_ARRAY: | |
5125905e MA |
475 | /* An array has only elements of the same type. So it is |
476 | sufficient to check the first element's signature | |
477 | only. */ | |
478 | ||
479 | if (NILP (object)) | |
480 | /* If the array is empty, DBUS_TYPE_STRING is the default | |
481 | element type. */ | |
482 | strcpy (signature, DBUS_TYPE_STRING_AS_STRING); | |
483 | ||
484 | else | |
485 | /* If the element type is DBUS_TYPE_SIGNATURE, and this is | |
486 | the only element, the value of this element is used as | |
487 | the array's element signature. */ | |
488 | if ((XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)) | |
489 | == DBUS_TYPE_SIGNATURE) | |
490 | && STRINGP (CAR_SAFE (XD_NEXT_VALUE (object))) | |
491 | && NILP (CDR_SAFE (XD_NEXT_VALUE (object)))) | |
492 | { | |
493 | strcpy (signature, SDATA (CAR_SAFE (XD_NEXT_VALUE (object)))); | |
494 | object = CDR_SAFE (XD_NEXT_VALUE (object)); | |
495 | } | |
496 | ||
497 | else | |
498 | xd_signature (signature, | |
499 | XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)), | |
500 | dtype, CAR_SAFE (XD_NEXT_VALUE (object))); | |
501 | ||
502 | XD_DEBUG_MESSAGE ("%c %s %s", dtype, signature, | |
503 | SDATA (format2 ("%s", object, Qnil))); | |
504 | if (!dbus_message_iter_open_container (iter, dtype, | |
505 | signature, &subiter)) | |
506 | xsignal3 (Qdbus_error, | |
507 | build_string ("Cannot open container"), | |
508 | make_number (dtype), build_string (signature)); | |
509 | break; | |
510 | ||
87cf1a39 | 511 | case DBUS_TYPE_VARIANT: |
5125905e MA |
512 | /* A variant has just one element. */ |
513 | xd_signature (signature, XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)), | |
514 | dtype, CAR_SAFE (XD_NEXT_VALUE (object))); | |
515 | ||
87cf1a39 MA |
516 | XD_DEBUG_MESSAGE ("%c %s %s", dtype, signature, |
517 | SDATA (format2 ("%s", object, Qnil))); | |
518 | if (!dbus_message_iter_open_container (iter, dtype, | |
519 | signature, &subiter)) | |
520 | xsignal3 (Qdbus_error, | |
521 | build_string ("Cannot open container"), | |
522 | make_number (dtype), build_string (signature)); | |
523 | break; | |
524 | ||
525 | case DBUS_TYPE_STRUCT: | |
526 | case DBUS_TYPE_DICT_ENTRY: | |
9af5078b | 527 | /* These containers do not require a signature. */ |
87cf1a39 MA |
528 | XD_DEBUG_MESSAGE ("%c %s", dtype, |
529 | SDATA (format2 ("%s", object, Qnil))); | |
530 | if (!dbus_message_iter_open_container (iter, dtype, NULL, &subiter)) | |
531 | xsignal2 (Qdbus_error, | |
532 | build_string ("Cannot open container"), | |
533 | make_number (dtype)); | |
534 | break; | |
535 | } | |
536 | ||
537 | /* Loop over list elements. */ | |
538 | while (!NILP (object)) | |
539 | { | |
5125905e | 540 | dtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)); |
87cf1a39 MA |
541 | object = XD_NEXT_VALUE (object); |
542 | ||
5125905e | 543 | xd_append_arg (dtype, CAR_SAFE (object), &subiter); |
87cf1a39 | 544 | |
5125905e | 545 | object = CDR_SAFE (object); |
87cf1a39 MA |
546 | } |
547 | ||
9af5078b | 548 | /* Close the subiteration. */ |
87cf1a39 MA |
549 | if (!dbus_message_iter_close_container (iter, &subiter)) |
550 | xsignal2 (Qdbus_error, | |
551 | build_string ("Cannot close container"), | |
552 | make_number (dtype)); | |
553 | } | |
033b73e2 MA |
554 | } |
555 | ||
556 | /* Retrieve C value from a DBusMessageIter structure ITER, and return | |
557 | a converted Lisp object. The type DTYPE of the argument of the | |
9af5078b MA |
558 | D-Bus message must be a valid DBusType. Compound D-Bus types |
559 | result always in a Lisp list. */ | |
033b73e2 MA |
560 | Lisp_Object |
561 | xd_retrieve_arg (dtype, iter) | |
eb7c7bf5 | 562 | unsigned int dtype; |
033b73e2 MA |
563 | DBusMessageIter *iter; |
564 | { | |
565 | ||
566 | switch (dtype) | |
567 | { | |
9af5078b | 568 | case DBUS_TYPE_BYTE: |
9af5078b | 569 | { |
17bc8f94 | 570 | unsigned int val; |
9af5078b | 571 | dbus_message_iter_get_basic (iter, &val); |
17bc8f94 | 572 | val = val & 0xFF; |
9af5078b MA |
573 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
574 | return make_number (val); | |
575 | } | |
576 | ||
033b73e2 MA |
577 | case DBUS_TYPE_BOOLEAN: |
578 | { | |
579 | dbus_bool_t val; | |
580 | dbus_message_iter_get_basic (iter, &val); | |
87cf1a39 | 581 | XD_DEBUG_MESSAGE ("%c %s", dtype, (val == FALSE) ? "false" : "true"); |
033b73e2 MA |
582 | return (val == FALSE) ? Qnil : Qt; |
583 | } | |
87cf1a39 | 584 | |
17bc8f94 MA |
585 | case DBUS_TYPE_INT16: |
586 | case DBUS_TYPE_UINT16: | |
587 | { | |
588 | dbus_uint16_t val; | |
589 | dbus_message_iter_get_basic (iter, &val); | |
590 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); | |
591 | return make_number (val); | |
592 | } | |
593 | ||
033b73e2 MA |
594 | case DBUS_TYPE_INT32: |
595 | case DBUS_TYPE_UINT32: | |
596 | { | |
b35c64e4 MA |
597 | /* Assignment to EMACS_INT stops GCC whining about limited |
598 | range of data type. */ | |
033b73e2 | 599 | dbus_uint32_t val; |
b35c64e4 | 600 | EMACS_INT val1; |
033b73e2 | 601 | dbus_message_iter_get_basic (iter, &val); |
17bc8f94 | 602 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
b35c64e4 MA |
603 | val1 = val; |
604 | return make_fixnum_or_float (val1); | |
9af5078b MA |
605 | } |
606 | ||
607 | case DBUS_TYPE_INT64: | |
608 | case DBUS_TYPE_UINT64: | |
609 | { | |
610 | dbus_uint64_t val; | |
611 | dbus_message_iter_get_basic (iter, &val); | |
17bc8f94 | 612 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); |
9af5078b MA |
613 | return make_fixnum_or_float (val); |
614 | } | |
615 | ||
616 | case DBUS_TYPE_DOUBLE: | |
617 | { | |
618 | double val; | |
619 | dbus_message_iter_get_basic (iter, &val); | |
620 | XD_DEBUG_MESSAGE ("%c %f", dtype, val); | |
621 | return make_float (val); | |
033b73e2 | 622 | } |
87cf1a39 | 623 | |
033b73e2 MA |
624 | case DBUS_TYPE_STRING: |
625 | case DBUS_TYPE_OBJECT_PATH: | |
9af5078b | 626 | case DBUS_TYPE_SIGNATURE: |
033b73e2 MA |
627 | { |
628 | char *val; | |
629 | dbus_message_iter_get_basic (iter, &val); | |
87cf1a39 | 630 | XD_DEBUG_MESSAGE ("%c %s", dtype, val); |
033b73e2 MA |
631 | return build_string (val); |
632 | } | |
87cf1a39 | 633 | |
033b73e2 MA |
634 | case DBUS_TYPE_ARRAY: |
635 | case DBUS_TYPE_VARIANT: | |
636 | case DBUS_TYPE_STRUCT: | |
637 | case DBUS_TYPE_DICT_ENTRY: | |
638 | { | |
639 | Lisp_Object result; | |
640 | struct gcpro gcpro1; | |
641 | result = Qnil; | |
642 | GCPRO1 (result); | |
643 | DBusMessageIter subiter; | |
644 | int subtype; | |
645 | dbus_message_iter_recurse (iter, &subiter); | |
646 | while ((subtype = dbus_message_iter_get_arg_type (&subiter)) | |
647 | != DBUS_TYPE_INVALID) | |
648 | { | |
649 | result = Fcons (xd_retrieve_arg (subtype, &subiter), result); | |
650 | dbus_message_iter_next (&subiter); | |
651 | } | |
5125905e | 652 | XD_DEBUG_MESSAGE ("%c %s", dtype, SDATA (format2 ("%s", result, Qnil))); |
033b73e2 MA |
653 | RETURN_UNGCPRO (Fnreverse (result)); |
654 | } | |
87cf1a39 | 655 | |
033b73e2 | 656 | default: |
87cf1a39 | 657 | XD_DEBUG_MESSAGE ("DBusType '%c' not supported", dtype); |
033b73e2 MA |
658 | return Qnil; |
659 | } | |
660 | } | |
661 | ||
033b73e2 MA |
662 | /* Initialize D-Bus connection. BUS is a Lisp symbol, either :system |
663 | or :session. It tells which D-Bus to be initialized. */ | |
664 | DBusConnection * | |
665 | xd_initialize (bus) | |
666 | Lisp_Object bus; | |
667 | { | |
668 | DBusConnection *connection; | |
669 | DBusError derror; | |
670 | ||
671 | /* Parameter check. */ | |
672 | CHECK_SYMBOL (bus); | |
39abdd4a | 673 | if (!((EQ (bus, QCdbus_system_bus)) || (EQ (bus, QCdbus_session_bus)))) |
033b73e2 MA |
674 | xsignal2 (Qdbus_error, build_string ("Wrong bus name"), bus); |
675 | ||
676 | /* Open a connection to the bus. */ | |
677 | dbus_error_init (&derror); | |
678 | ||
39abdd4a | 679 | if (EQ (bus, QCdbus_system_bus)) |
033b73e2 MA |
680 | connection = dbus_bus_get (DBUS_BUS_SYSTEM, &derror); |
681 | else | |
682 | connection = dbus_bus_get (DBUS_BUS_SESSION, &derror); | |
683 | ||
684 | if (dbus_error_is_set (&derror)) | |
685 | XD_ERROR (derror); | |
686 | ||
687 | if (connection == NULL) | |
688 | xsignal2 (Qdbus_error, build_string ("No connection"), bus); | |
689 | ||
690 | /* Return the result. */ | |
691 | return connection; | |
692 | } | |
693 | ||
694 | DEFUN ("dbus-get-unique-name", Fdbus_get_unique_name, Sdbus_get_unique_name, | |
695 | 1, 1, 0, | |
5125905e | 696 | doc: /* Return the unique name of Emacs registered at D-Bus BUS. */) |
033b73e2 MA |
697 | (bus) |
698 | Lisp_Object bus; | |
699 | { | |
700 | DBusConnection *connection; | |
52da95fa | 701 | char name[DBUS_MAXIMUM_NAME_LENGTH]; |
033b73e2 MA |
702 | |
703 | /* Check parameters. */ | |
704 | CHECK_SYMBOL (bus); | |
705 | ||
706 | /* Open a connection to the bus. */ | |
707 | connection = xd_initialize (bus); | |
708 | ||
709 | /* Request the name. */ | |
710 | strcpy (name, dbus_bus_get_unique_name (connection)); | |
711 | if (name == NULL) | |
712 | xsignal1 (Qdbus_error, build_string ("No unique name available")); | |
713 | ||
714 | /* Return. */ | |
715 | return build_string (name); | |
716 | } | |
717 | ||
718 | DEFUN ("dbus-call-method", Fdbus_call_method, Sdbus_call_method, 5, MANY, 0, | |
719 | doc: /* Call METHOD on the D-Bus BUS. | |
720 | ||
721 | BUS is either the symbol `:system' or the symbol `:session'. | |
722 | ||
723 | SERVICE is the D-Bus service name to be used. PATH is the D-Bus | |
724 | object path SERVICE is registered at. INTERFACE is an interface | |
725 | offered by SERVICE. It must provide METHOD. | |
726 | ||
727 | All other arguments ARGS are passed to METHOD as arguments. They are | |
728 | converted into D-Bus types via the following rules: | |
729 | ||
730 | t and nil => DBUS_TYPE_BOOLEAN | |
731 | number => DBUS_TYPE_UINT32 | |
732 | integer => DBUS_TYPE_INT32 | |
733 | float => DBUS_TYPE_DOUBLE | |
734 | string => DBUS_TYPE_STRING | |
87cf1a39 | 735 | list => DBUS_TYPE_ARRAY |
033b73e2 | 736 | |
87cf1a39 MA |
737 | All arguments can be preceded by a type symbol. For details about |
738 | type symbols, see Info node `(dbus)Type Conversion'. | |
033b73e2 MA |
739 | |
740 | `dbus-call-method' returns the resulting values of METHOD as a list of | |
741 | Lisp objects. The type conversion happens the other direction as for | |
87cf1a39 MA |
742 | input arguments. It follows the mapping rules: |
743 | ||
744 | DBUS_TYPE_BOOLEAN => t or nil | |
745 | DBUS_TYPE_BYTE => number | |
746 | DBUS_TYPE_UINT16 => number | |
747 | DBUS_TYPE_INT16 => integer | |
9af5078b MA |
748 | DBUS_TYPE_UINT32 => number or float |
749 | DBUS_TYPE_INT32 => integer or float | |
750 | DBUS_TYPE_UINT64 => number or float | |
751 | DBUS_TYPE_INT64 => integer or float | |
87cf1a39 MA |
752 | DBUS_TYPE_DOUBLE => float |
753 | DBUS_TYPE_STRING => string | |
754 | DBUS_TYPE_OBJECT_PATH => string | |
755 | DBUS_TYPE_SIGNATURE => string | |
756 | DBUS_TYPE_ARRAY => list | |
757 | DBUS_TYPE_VARIANT => list | |
758 | DBUS_TYPE_STRUCT => list | |
759 | DBUS_TYPE_DICT_ENTRY => list | |
760 | ||
761 | Example: | |
033b73e2 MA |
762 | |
763 | \(dbus-call-method | |
52da95fa MA |
764 | :session "org.gnome.seahorse" "/org/gnome/seahorse/keys/openpgp" |
765 | "org.gnome.seahorse.Keys" "GetKeyField" | |
033b73e2 MA |
766 | "openpgp:657984B8C7A966DD" "simple-name") |
767 | ||
768 | => (t ("Philip R. Zimmermann")) | |
769 | ||
770 | If the result of the METHOD call is just one value, the converted Lisp | |
771 | object is returned instead of a list containing this single Lisp object. | |
772 | ||
773 | \(dbus-call-method | |
52da95fa MA |
774 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/devices/computer" |
775 | "org.freedesktop.Hal.Device" "GetPropertyString" | |
033b73e2 MA |
776 | "system.kernel.machine") |
777 | ||
778 | => "i686" | |
779 | ||
52da95fa | 780 | usage: (dbus-call-method BUS SERVICE PATH INTERFACE METHOD &rest ARGS) */) |
033b73e2 MA |
781 | (nargs, args) |
782 | int nargs; | |
783 | register Lisp_Object *args; | |
784 | { | |
52da95fa | 785 | Lisp_Object bus, service, path, interface, method; |
033b73e2 MA |
786 | Lisp_Object result; |
787 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
788 | DBusConnection *connection; | |
789 | DBusMessage *dmessage; | |
790 | DBusMessage *reply; | |
791 | DBusMessageIter iter; | |
792 | DBusError derror; | |
eb7c7bf5 | 793 | unsigned int dtype; |
033b73e2 | 794 | int i; |
87cf1a39 | 795 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
033b73e2 MA |
796 | |
797 | /* Check parameters. */ | |
798 | bus = args[0]; | |
52da95fa MA |
799 | service = args[1]; |
800 | path = args[2]; | |
801 | interface = args[3]; | |
802 | method = args[4]; | |
033b73e2 MA |
803 | |
804 | CHECK_SYMBOL (bus); | |
033b73e2 MA |
805 | CHECK_STRING (service); |
806 | CHECK_STRING (path); | |
807 | CHECK_STRING (interface); | |
52da95fa MA |
808 | CHECK_STRING (method); |
809 | GCPRO5 (bus, service, path, interface, method); | |
033b73e2 MA |
810 | |
811 | XD_DEBUG_MESSAGE ("%s %s %s %s", | |
033b73e2 MA |
812 | SDATA (service), |
813 | SDATA (path), | |
52da95fa MA |
814 | SDATA (interface), |
815 | SDATA (method)); | |
033b73e2 MA |
816 | |
817 | /* Open a connection to the bus. */ | |
818 | connection = xd_initialize (bus); | |
819 | ||
820 | /* Create the message. */ | |
5125905e MA |
821 | dmessage = dbus_message_new_method_call (SDATA (service), |
822 | SDATA (path), | |
823 | SDATA (interface), | |
824 | SDATA (method)); | |
033b73e2 MA |
825 | if (dmessage == NULL) |
826 | { | |
827 | UNGCPRO; | |
828 | xsignal1 (Qdbus_error, build_string ("Unable to create a new message")); | |
829 | } | |
830 | ||
831 | UNGCPRO; | |
832 | ||
54371585 MA |
833 | /* Initialize parameter list of message. */ |
834 | dbus_message_iter_init_append (dmessage, &iter); | |
835 | ||
033b73e2 MA |
836 | /* Append parameters to the message. */ |
837 | for (i = 5; i < nargs; ++i) | |
838 | { | |
87cf1a39 MA |
839 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
840 | if (XD_DBUS_TYPE_P (args[i])) | |
8c7a4ac5 MA |
841 | { |
842 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
843 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); | |
844 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4, | |
845 | SDATA (format2 ("%s", args[i], Qnil)), | |
846 | SDATA (format2 ("%s", args[i+1], Qnil))); | |
847 | ++i; | |
848 | } | |
849 | else | |
850 | { | |
851 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
852 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-4, | |
853 | SDATA (format2 ("%s", args[i], Qnil))); | |
854 | } | |
033b73e2 | 855 | |
abe136ee | 856 | /* Check for valid signature. We use DBUS_TYPE_INVALID as |
87cf1a39 MA |
857 | indication that there is no parent type. */ |
858 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
859 | ||
54371585 | 860 | xd_append_arg (dtype, args[i], &iter); |
033b73e2 MA |
861 | } |
862 | ||
863 | /* Send the message. */ | |
864 | dbus_error_init (&derror); | |
865 | reply = dbus_connection_send_with_reply_and_block (connection, | |
866 | dmessage, | |
867 | -1, | |
868 | &derror); | |
869 | ||
870 | if (dbus_error_is_set (&derror)) | |
871 | XD_ERROR (derror); | |
872 | ||
873 | if (reply == NULL) | |
874 | xsignal1 (Qdbus_error, build_string ("No reply")); | |
875 | ||
876 | XD_DEBUG_MESSAGE ("Message sent"); | |
877 | ||
878 | /* Collect the results. */ | |
879 | result = Qnil; | |
880 | GCPRO1 (result); | |
881 | ||
2c3a8b27 | 882 | if (dbus_message_iter_init (reply, &iter)) |
033b73e2 | 883 | { |
2c3a8b27 MH |
884 | /* Loop over the parameters of the D-Bus reply message. Construct a |
885 | Lisp list, which is returned by `dbus-call-method'. */ | |
8c7a4ac5 MA |
886 | while ((dtype = dbus_message_iter_get_arg_type (&iter)) |
887 | != DBUS_TYPE_INVALID) | |
2c3a8b27 MH |
888 | { |
889 | result = Fcons (xd_retrieve_arg (dtype, &iter), result); | |
890 | dbus_message_iter_next (&iter); | |
891 | } | |
033b73e2 | 892 | } |
2c3a8b27 | 893 | else |
033b73e2 | 894 | { |
8c7a4ac5 | 895 | /* No arguments: just return nil. */ |
033b73e2 MA |
896 | } |
897 | ||
898 | /* Cleanup. */ | |
899 | dbus_message_unref (dmessage); | |
900 | dbus_message_unref (reply); | |
901 | ||
902 | /* Return the result. If there is only one single Lisp object, | |
903 | return it as-it-is, otherwise return the reversed list. */ | |
904 | if (XUINT (Flength (result)) == 1) | |
5125905e | 905 | RETURN_UNGCPRO (CAR_SAFE (result)); |
033b73e2 MA |
906 | else |
907 | RETURN_UNGCPRO (Fnreverse (result)); | |
908 | } | |
909 | ||
8c7a4ac5 MA |
910 | DEFUN ("dbus-method-return-internal", Fdbus_method_return_internal, |
911 | Sdbus_method_return_internal, | |
abe136ee | 912 | 3, MANY, 0, |
8c7a4ac5 | 913 | doc: /* Return for message SERIAL on the D-Bus BUS. |
abe136ee MA |
914 | This is an internal function, it shall not be used outside dbus.el. |
915 | ||
8c7a4ac5 | 916 | usage: (dbus-method-return-internal BUS SERIAL SERVICE &rest ARGS) */) |
abe136ee MA |
917 | (nargs, args) |
918 | int nargs; | |
919 | register Lisp_Object *args; | |
920 | { | |
921 | Lisp_Object bus, serial, service; | |
922 | struct gcpro gcpro1, gcpro2, gcpro3; | |
923 | DBusConnection *connection; | |
924 | DBusMessage *dmessage; | |
925 | DBusMessageIter iter; | |
926 | unsigned int dtype; | |
927 | int i; | |
928 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; | |
929 | ||
930 | /* Check parameters. */ | |
931 | bus = args[0]; | |
932 | serial = args[1]; | |
933 | service = args[2]; | |
934 | ||
935 | CHECK_SYMBOL (bus); | |
936 | CHECK_NUMBER (serial); | |
937 | CHECK_STRING (service); | |
938 | GCPRO3 (bus, serial, service); | |
939 | ||
940 | XD_DEBUG_MESSAGE ("%d %s ", XUINT (serial), SDATA (service)); | |
941 | ||
942 | /* Open a connection to the bus. */ | |
943 | connection = xd_initialize (bus); | |
944 | ||
945 | /* Create the message. */ | |
946 | dmessage = dbus_message_new (DBUS_MESSAGE_TYPE_METHOD_RETURN); | |
947 | if ((dmessage == NULL) | |
948 | || (!dbus_message_set_reply_serial (dmessage, XUINT (serial))) | |
949 | || (!dbus_message_set_destination (dmessage, SDATA (service)))) | |
950 | { | |
951 | UNGCPRO; | |
952 | xsignal1 (Qdbus_error, | |
953 | build_string ("Unable to create a return message")); | |
954 | } | |
955 | ||
956 | UNGCPRO; | |
957 | ||
958 | /* Initialize parameter list of message. */ | |
959 | dbus_message_iter_init_append (dmessage, &iter); | |
960 | ||
961 | /* Append parameters to the message. */ | |
962 | for (i = 3; i < nargs; ++i) | |
963 | { | |
abe136ee MA |
964 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
965 | if (XD_DBUS_TYPE_P (args[i])) | |
8c7a4ac5 MA |
966 | { |
967 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
968 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); | |
969 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-2, | |
970 | SDATA (format2 ("%s", args[i], Qnil)), | |
971 | SDATA (format2 ("%s", args[i+1], Qnil))); | |
972 | ++i; | |
973 | } | |
974 | else | |
975 | { | |
976 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
977 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-2, | |
978 | SDATA (format2 ("%s", args[i], Qnil))); | |
979 | } | |
abe136ee MA |
980 | |
981 | /* Check for valid signature. We use DBUS_TYPE_INVALID as | |
982 | indication that there is no parent type. */ | |
983 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
984 | ||
985 | xd_append_arg (dtype, args[i], &iter); | |
986 | } | |
987 | ||
988 | /* Send the message. The message is just added to the outgoing | |
989 | message queue. */ | |
990 | if (!dbus_connection_send (connection, dmessage, NULL)) | |
991 | xsignal1 (Qdbus_error, build_string ("Cannot send message")); | |
992 | ||
993 | /* Flush connection to ensure the message is handled. */ | |
994 | dbus_connection_flush (connection); | |
995 | ||
996 | XD_DEBUG_MESSAGE ("Message sent"); | |
997 | ||
998 | /* Cleanup. */ | |
999 | dbus_message_unref (dmessage); | |
1000 | ||
1001 | /* Return. */ | |
1002 | return Qt; | |
1003 | } | |
1004 | ||
033b73e2 MA |
1005 | DEFUN ("dbus-send-signal", Fdbus_send_signal, Sdbus_send_signal, 5, MANY, 0, |
1006 | doc: /* Send signal SIGNAL on the D-Bus BUS. | |
1007 | ||
1008 | BUS is either the symbol `:system' or the symbol `:session'. | |
1009 | ||
1010 | SERVICE is the D-Bus service name SIGNAL is sent from. PATH is the | |
1011 | D-Bus object path SERVICE is registered at. INTERFACE is an interface | |
1012 | offered by SERVICE. It must provide signal SIGNAL. | |
1013 | ||
1014 | All other arguments ARGS are passed to SIGNAL as arguments. They are | |
1015 | converted into D-Bus types via the following rules: | |
1016 | ||
1017 | t and nil => DBUS_TYPE_BOOLEAN | |
1018 | number => DBUS_TYPE_UINT32 | |
1019 | integer => DBUS_TYPE_INT32 | |
1020 | float => DBUS_TYPE_DOUBLE | |
1021 | string => DBUS_TYPE_STRING | |
87cf1a39 | 1022 | list => DBUS_TYPE_ARRAY |
033b73e2 | 1023 | |
87cf1a39 MA |
1024 | All arguments can be preceded by a type symbol. For details about |
1025 | type symbols, see Info node `(dbus)Type Conversion'. | |
033b73e2 MA |
1026 | |
1027 | Example: | |
1028 | ||
1029 | \(dbus-send-signal | |
52da95fa MA |
1030 | :session "org.gnu.Emacs" "/org/gnu/Emacs" |
1031 | "org.gnu.Emacs.FileManager" "FileModified" "/home/albinus/.emacs") | |
033b73e2 | 1032 | |
52da95fa | 1033 | usage: (dbus-send-signal BUS SERVICE PATH INTERFACE SIGNAL &rest ARGS) */) |
033b73e2 MA |
1034 | (nargs, args) |
1035 | int nargs; | |
1036 | register Lisp_Object *args; | |
1037 | { | |
52da95fa | 1038 | Lisp_Object bus, service, path, interface, signal; |
033b73e2 MA |
1039 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
1040 | DBusConnection *connection; | |
1041 | DBusMessage *dmessage; | |
54371585 | 1042 | DBusMessageIter iter; |
eb7c7bf5 | 1043 | unsigned int dtype; |
033b73e2 | 1044 | int i; |
87cf1a39 | 1045 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
033b73e2 MA |
1046 | |
1047 | /* Check parameters. */ | |
1048 | bus = args[0]; | |
52da95fa MA |
1049 | service = args[1]; |
1050 | path = args[2]; | |
1051 | interface = args[3]; | |
1052 | signal = args[4]; | |
033b73e2 MA |
1053 | |
1054 | CHECK_SYMBOL (bus); | |
033b73e2 MA |
1055 | CHECK_STRING (service); |
1056 | CHECK_STRING (path); | |
1057 | CHECK_STRING (interface); | |
52da95fa MA |
1058 | CHECK_STRING (signal); |
1059 | GCPRO5 (bus, service, path, interface, signal); | |
033b73e2 MA |
1060 | |
1061 | XD_DEBUG_MESSAGE ("%s %s %s %s", | |
033b73e2 MA |
1062 | SDATA (service), |
1063 | SDATA (path), | |
52da95fa MA |
1064 | SDATA (interface), |
1065 | SDATA (signal)); | |
033b73e2 MA |
1066 | |
1067 | /* Open a connection to the bus. */ | |
1068 | connection = xd_initialize (bus); | |
1069 | ||
1070 | /* Create the message. */ | |
5125905e MA |
1071 | dmessage = dbus_message_new_signal (SDATA (path), |
1072 | SDATA (interface), | |
1073 | SDATA (signal)); | |
033b73e2 MA |
1074 | if (dmessage == NULL) |
1075 | { | |
1076 | UNGCPRO; | |
1077 | xsignal1 (Qdbus_error, build_string ("Unable to create a new message")); | |
1078 | } | |
1079 | ||
1080 | UNGCPRO; | |
1081 | ||
54371585 MA |
1082 | /* Initialize parameter list of message. */ |
1083 | dbus_message_iter_init_append (dmessage, &iter); | |
1084 | ||
033b73e2 MA |
1085 | /* Append parameters to the message. */ |
1086 | for (i = 5; i < nargs; ++i) | |
1087 | { | |
87cf1a39 MA |
1088 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
1089 | if (XD_DBUS_TYPE_P (args[i])) | |
8c7a4ac5 MA |
1090 | { |
1091 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1092 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); | |
1093 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4, | |
1094 | SDATA (format2 ("%s", args[i], Qnil)), | |
1095 | SDATA (format2 ("%s", args[i+1], Qnil))); | |
1096 | ++i; | |
1097 | } | |
1098 | else | |
1099 | { | |
1100 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1101 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-4, | |
1102 | SDATA (format2 ("%s", args[i], Qnil))); | |
1103 | } | |
033b73e2 | 1104 | |
abe136ee | 1105 | /* Check for valid signature. We use DBUS_TYPE_INVALID as |
87cf1a39 MA |
1106 | indication that there is no parent type. */ |
1107 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
1108 | ||
54371585 | 1109 | xd_append_arg (dtype, args[i], &iter); |
033b73e2 MA |
1110 | } |
1111 | ||
1112 | /* Send the message. The message is just added to the outgoing | |
1113 | message queue. */ | |
1114 | if (!dbus_connection_send (connection, dmessage, NULL)) | |
1115 | xsignal1 (Qdbus_error, build_string ("Cannot send message")); | |
1116 | ||
1117 | /* Flush connection to ensure the message is handled. */ | |
1118 | dbus_connection_flush (connection); | |
1119 | ||
1120 | XD_DEBUG_MESSAGE ("Signal sent"); | |
1121 | ||
1122 | /* Cleanup. */ | |
1123 | dbus_message_unref (dmessage); | |
1124 | ||
1125 | /* Return. */ | |
1126 | return Qt; | |
1127 | } | |
1128 | ||
1129 | /* Read queued incoming message of the D-Bus BUS. BUS is a Lisp | |
1130 | symbol, either :system or :session. */ | |
96faeb40 | 1131 | Lisp_Object |
033b73e2 MA |
1132 | xd_read_message (bus) |
1133 | Lisp_Object bus; | |
1134 | { | |
a31d47c7 | 1135 | Lisp_Object args, key, value; |
033b73e2 | 1136 | struct gcpro gcpro1; |
15f16c1b | 1137 | struct input_event event; |
033b73e2 MA |
1138 | DBusConnection *connection; |
1139 | DBusMessage *dmessage; | |
1140 | DBusMessageIter iter; | |
eb7c7bf5 | 1141 | unsigned int dtype; |
17bc8f94 | 1142 | int mtype; |
a31d47c7 | 1143 | char uname[DBUS_MAXIMUM_NAME_LENGTH]; |
52da95fa MA |
1144 | char path[DBUS_MAXIMUM_MATCH_RULE_LENGTH]; /* Unlimited in D-Bus spec. */ |
1145 | char interface[DBUS_MAXIMUM_NAME_LENGTH]; | |
1146 | char member[DBUS_MAXIMUM_NAME_LENGTH]; | |
39abdd4a | 1147 | |
033b73e2 MA |
1148 | /* Open a connection to the bus. */ |
1149 | connection = xd_initialize (bus); | |
1150 | ||
1151 | /* Non blocking read of the next available message. */ | |
1152 | dbus_connection_read_write (connection, 0); | |
1153 | dmessage = dbus_connection_pop_message (connection); | |
1154 | ||
1155 | /* Return if there is no queued message. */ | |
1156 | if (dmessage == NULL) | |
17bc8f94 | 1157 | return Qnil; |
033b73e2 MA |
1158 | |
1159 | /* Collect the parameters. */ | |
a31d47c7 MA |
1160 | args = Qnil; |
1161 | GCPRO1 (args); | |
033b73e2 | 1162 | |
033b73e2 | 1163 | /* Loop over the resulting parameters. Construct a list. */ |
17bc8f94 | 1164 | if (dbus_message_iter_init (dmessage, &iter)) |
033b73e2 | 1165 | { |
17bc8f94 MA |
1166 | while ((dtype = dbus_message_iter_get_arg_type (&iter)) |
1167 | != DBUS_TYPE_INVALID) | |
1168 | { | |
1169 | args = Fcons (xd_retrieve_arg (dtype, &iter), args); | |
1170 | dbus_message_iter_next (&iter); | |
1171 | } | |
1172 | /* The arguments are stored in reverse order. Reorder them. */ | |
1173 | args = Fnreverse (args); | |
033b73e2 MA |
1174 | } |
1175 | ||
17bc8f94 MA |
1176 | /* Read message type, unique name, object path, interface and member |
1177 | from the message. */ | |
1178 | mtype = dbus_message_get_type (dmessage); | |
a31d47c7 | 1179 | strcpy (uname, dbus_message_get_sender (dmessage)); |
39abdd4a MA |
1180 | strcpy (path, dbus_message_get_path (dmessage)); |
1181 | strcpy (interface, dbus_message_get_interface (dmessage)); | |
1182 | strcpy (member, dbus_message_get_member (dmessage)); | |
1183 | ||
17bc8f94 MA |
1184 | XD_DEBUG_MESSAGE ("Event received: %d %s %s %s %s %s", |
1185 | mtype, uname, path, interface, member, | |
1186 | SDATA (format2 ("%s", args, Qnil))); | |
1187 | ||
a31d47c7 MA |
1188 | /* Search for a registered function of the message. */ |
1189 | key = list3 (bus, build_string (interface), build_string (member)); | |
1190 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); | |
1191 | ||
1192 | /* Loop over the registered functions. Construct an event. */ | |
1193 | while (!NILP (value)) | |
1194 | { | |
5125905e | 1195 | key = CAR_SAFE (value); |
f5306ca3 | 1196 | /* key has the structure (UNAME SERVICE PATH HANDLER). */ |
eb7c7bf5 | 1197 | if (((uname == NULL) |
5125905e MA |
1198 | || (NILP (CAR_SAFE (key))) |
1199 | || (strcmp (uname, SDATA (CAR_SAFE (key))) == 0)) | |
eb7c7bf5 | 1200 | && ((path == NULL) |
5125905e MA |
1201 | || (NILP (CAR_SAFE (CDR_SAFE (CDR_SAFE (key))))) |
1202 | || (strcmp (path, SDATA (CAR_SAFE (CDR_SAFE (CDR_SAFE (key))))) | |
1203 | == 0)) | |
1204 | && (!NILP (CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (key))))))) | |
a31d47c7 MA |
1205 | { |
1206 | EVENT_INIT (event); | |
1207 | event.kind = DBUS_EVENT; | |
1208 | event.frame_or_window = Qnil; | |
5125905e MA |
1209 | event.arg = Fcons (CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (key)))), |
1210 | args); | |
a31d47c7 MA |
1211 | |
1212 | /* Add uname, path, interface and member to the event. */ | |
1213 | event.arg = Fcons ((member == NULL ? Qnil : build_string (member)), | |
1214 | event.arg); | |
1215 | event.arg = Fcons ((interface == NULL | |
1216 | ? Qnil : build_string (interface)), | |
1217 | event.arg); | |
1218 | event.arg = Fcons ((path == NULL ? Qnil : build_string (path)), | |
1219 | event.arg); | |
1220 | event.arg = Fcons ((uname == NULL ? Qnil : build_string (uname)), | |
1221 | event.arg); | |
1222 | ||
abe136ee MA |
1223 | /* Add the message serial if needed, or nil. */ |
1224 | event.arg = Fcons ((mtype == DBUS_MESSAGE_TYPE_METHOD_CALL | |
1225 | ? make_number (dbus_message_get_serial (dmessage)) | |
1226 | : Qnil), | |
1227 | event.arg); | |
1228 | ||
a31d47c7 MA |
1229 | /* Add the bus symbol to the event. */ |
1230 | event.arg = Fcons (bus, event.arg); | |
1231 | ||
1232 | /* Store it into the input event queue. */ | |
1233 | kbd_buffer_store_event (&event); | |
1234 | } | |
5125905e | 1235 | value = CDR_SAFE (value); |
a31d47c7 | 1236 | } |
033b73e2 MA |
1237 | |
1238 | /* Cleanup. */ | |
1239 | dbus_message_unref (dmessage); | |
17bc8f94 | 1240 | RETURN_UNGCPRO (Qnil); |
033b73e2 MA |
1241 | } |
1242 | ||
1243 | /* Read queued incoming messages from the system and session buses. */ | |
1244 | void | |
1245 | xd_read_queued_messages () | |
1246 | { | |
96faeb40 | 1247 | |
f5306ca3 MA |
1248 | /* Vdbus_registered_functions_table will be initialized as hash |
1249 | table in dbus.el. When this package isn't loaded yet, it doesn't | |
1250 | make sense to handle D-Bus messages. Furthermore, we ignore all | |
1251 | Lisp errors during the call. */ | |
96faeb40 MA |
1252 | if (HASH_TABLE_P (Vdbus_registered_functions_table)) |
1253 | { | |
1254 | internal_condition_case_1 (xd_read_message, QCdbus_system_bus, | |
1255 | Qerror, Fidentity); | |
1256 | internal_condition_case_1 (xd_read_message, QCdbus_session_bus, | |
1257 | Qerror, Fidentity); | |
1258 | } | |
033b73e2 MA |
1259 | } |
1260 | ||
1261 | DEFUN ("dbus-register-signal", Fdbus_register_signal, Sdbus_register_signal, | |
1262 | 6, 6, 0, | |
1263 | doc: /* Register for signal SIGNAL on the D-Bus BUS. | |
1264 | ||
1265 | BUS is either the symbol `:system' or the symbol `:session'. | |
1266 | ||
39abdd4a MA |
1267 | SERVICE is the D-Bus service name used by the sending D-Bus object. |
1268 | It can be either a known name or the unique name of the D-Bus object | |
1269 | sending the signal. When SERVICE is nil, related signals from all | |
1270 | D-Bus objects shall be accepted. | |
033b73e2 | 1271 | |
39abdd4a MA |
1272 | PATH is the D-Bus object path SERVICE is registered. It can also be |
1273 | nil if the path name of incoming signals shall not be checked. | |
033b73e2 | 1274 | |
39abdd4a MA |
1275 | INTERFACE is an interface offered by SERVICE. It must provide SIGNAL. |
1276 | HANDLER is a Lisp function to be called when the signal is received. | |
1277 | It must accept as arguments the values SIGNAL is sending. INTERFACE, | |
1278 | SIGNAL and HANDLER must not be nil. Example: | |
033b73e2 MA |
1279 | |
1280 | \(defun my-signal-handler (device) | |
1281 | (message "Device %s added" device)) | |
1282 | ||
1283 | \(dbus-register-signal | |
52da95fa MA |
1284 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/Manager" |
1285 | "org.freedesktop.Hal.Manager" "DeviceAdded" 'my-signal-handler) | |
033b73e2 | 1286 | |
f5306ca3 MA |
1287 | => ((:system "org.freedesktop.Hal.Manager" "DeviceAdded") |
1288 | ("org.freedesktop.Hal" "/org/freedesktop/Hal/Manager" my-signal-handler)) | |
033b73e2 MA |
1289 | |
1290 | `dbus-register-signal' returns an object, which can be used in | |
17bc8f94 | 1291 | `dbus-unregister-object' for removing the registration. */) |
52da95fa MA |
1292 | (bus, service, path, interface, signal, handler) |
1293 | Lisp_Object bus, service, path, interface, signal, handler; | |
033b73e2 | 1294 | { |
17bc8f94 | 1295 | Lisp_Object uname, key, key1, value; |
033b73e2 | 1296 | DBusConnection *connection; |
52da95fa | 1297 | char rule[DBUS_MAXIMUM_MATCH_RULE_LENGTH]; |
39abdd4a | 1298 | DBusError derror; |
033b73e2 MA |
1299 | |
1300 | /* Check parameters. */ | |
1301 | CHECK_SYMBOL (bus); | |
39abdd4a MA |
1302 | if (!NILP (service)) CHECK_STRING (service); |
1303 | if (!NILP (path)) CHECK_STRING (path); | |
033b73e2 | 1304 | CHECK_STRING (interface); |
52da95fa | 1305 | CHECK_STRING (signal); |
17bc8f94 MA |
1306 | if (!FUNCTIONP (handler)) |
1307 | wrong_type_argument (intern ("functionp"), handler); | |
033b73e2 | 1308 | |
52da95fa MA |
1309 | /* Retrieve unique name of service. If service is a known name, we |
1310 | will register for the corresponding unique name, if any. Signals | |
1311 | are sent always with the unique name as sender. Note: the unique | |
1312 | name of "org.freedesktop.DBus" is that string itself. */ | |
5125905e MA |
1313 | if ((STRINGP (service)) |
1314 | && (SBYTES (service) > 0) | |
eb7c7bf5 MA |
1315 | && (strcmp (SDATA (service), DBUS_SERVICE_DBUS) != 0) |
1316 | && (strncmp (SDATA (service), ":", 1) != 0)) | |
f5306ca3 MA |
1317 | { |
1318 | uname = call2 (intern ("dbus-get-name-owner"), bus, service); | |
1319 | /* When there is no unique name, we mark it with an empty | |
1320 | string. */ | |
1321 | if (NILP (uname)) | |
1322 | uname = build_string (""); | |
1323 | } | |
52da95fa | 1324 | else |
f5306ca3 | 1325 | uname = service; |
52da95fa | 1326 | |
f5306ca3 MA |
1327 | /* Create a matching rule if the unique name exists (when no |
1328 | wildcard). */ | |
5125905e | 1329 | if (NILP (uname) || (SBYTES (uname) > 0)) |
f5306ca3 MA |
1330 | { |
1331 | /* Open a connection to the bus. */ | |
1332 | connection = xd_initialize (bus); | |
033b73e2 | 1333 | |
f5306ca3 MA |
1334 | /* Create a rule to receive related signals. */ |
1335 | sprintf (rule, | |
1336 | "type='signal',interface='%s',member='%s'", | |
1337 | SDATA (interface), | |
1338 | SDATA (signal)); | |
033b73e2 | 1339 | |
f5306ca3 MA |
1340 | /* Add unique name and path to the rule if they are non-nil. */ |
1341 | if (!NILP (uname)) | |
1342 | sprintf (rule, "%s,sender='%s'", rule, SDATA (uname)); | |
39abdd4a | 1343 | |
f5306ca3 MA |
1344 | if (!NILP (path)) |
1345 | sprintf (rule, "%s,path='%s'", rule, SDATA (path)); | |
39abdd4a | 1346 | |
f5306ca3 MA |
1347 | /* Add the rule to the bus. */ |
1348 | dbus_error_init (&derror); | |
1349 | dbus_bus_add_match (connection, rule, &derror); | |
1350 | if (dbus_error_is_set (&derror)) | |
1351 | XD_ERROR (derror); | |
033b73e2 | 1352 | |
f5306ca3 MA |
1353 | XD_DEBUG_MESSAGE ("Matching rule \"%s\" created", rule); |
1354 | } | |
033b73e2 | 1355 | |
39abdd4a | 1356 | /* Create a hash table entry. */ |
a31d47c7 | 1357 | key = list3 (bus, interface, signal); |
17bc8f94 MA |
1358 | key1 = list4 (uname, service, path, handler); |
1359 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); | |
1360 | ||
1361 | if (NILP (Fmember (key1, value))) | |
1362 | Fputhash (key, Fcons (key1, value), Vdbus_registered_functions_table); | |
1363 | ||
1364 | /* Return object. */ | |
1365 | return list2 (key, list3 (service, path, handler)); | |
1366 | } | |
1367 | ||
1368 | DEFUN ("dbus-register-method", Fdbus_register_method, Sdbus_register_method, | |
1369 | 6, 6, 0, | |
1370 | doc: /* Register for method METHOD on the D-Bus BUS. | |
1371 | ||
1372 | BUS is either the symbol `:system' or the symbol `:session'. | |
1373 | ||
1374 | SERVICE is the D-Bus service name of the D-Bus object METHOD is | |
1375 | registered for. It must be a known name. | |
1376 | ||
1377 | PATH is the D-Bus object path SERVICE is registered. INTERFACE is the | |
1378 | interface offered by SERVICE. It must provide METHOD. HANDLER is a | |
1379 | Lisp function to be called when a method call is received. It must | |
1380 | accept the input arguments of METHOD. The return value of HANDLER is | |
abe136ee | 1381 | used for composing the returning D-Bus message. */) |
17bc8f94 MA |
1382 | (bus, service, path, interface, method, handler) |
1383 | Lisp_Object bus, service, path, interface, method, handler; | |
1384 | { | |
1385 | Lisp_Object key, key1, value; | |
1386 | DBusConnection *connection; | |
1387 | int result; | |
1388 | DBusError derror; | |
1389 | ||
17bc8f94 MA |
1390 | /* Check parameters. */ |
1391 | CHECK_SYMBOL (bus); | |
1392 | CHECK_STRING (service); | |
1393 | CHECK_STRING (path); | |
1394 | CHECK_STRING (interface); | |
1395 | CHECK_STRING (method); | |
1396 | if (!FUNCTIONP (handler)) | |
1397 | wrong_type_argument (intern ("functionp"), handler); | |
1398 | /* TODO: We must check for a valid service name, otherwise there is | |
1399 | a segmentation fault. */ | |
1400 | ||
1401 | /* Open a connection to the bus. */ | |
1402 | connection = xd_initialize (bus); | |
1403 | ||
1404 | /* Request the known name from the bus. We can ignore the result, | |
1405 | it is set to -1 if there is an error - kind of redundancy. */ | |
1406 | dbus_error_init (&derror); | |
1407 | result = dbus_bus_request_name (connection, SDATA (service), 0, &derror); | |
1408 | if (dbus_error_is_set (&derror)) | |
1409 | XD_ERROR (derror); | |
1410 | ||
1411 | /* Create a hash table entry. */ | |
1412 | key = list3 (bus, interface, method); | |
1413 | key1 = list4 (Qnil, service, path, handler); | |
a31d47c7 MA |
1414 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); |
1415 | ||
17bc8f94 MA |
1416 | /* We use nil for the unique name, because the method might be |
1417 | called from everybody. */ | |
1418 | if (NILP (Fmember (key1, value))) | |
1419 | Fputhash (key, Fcons (key1, value), Vdbus_registered_functions_table); | |
033b73e2 | 1420 | |
f5306ca3 MA |
1421 | /* Return object. */ |
1422 | return list2 (key, list3 (service, path, handler)); | |
033b73e2 MA |
1423 | } |
1424 | ||
033b73e2 MA |
1425 | \f |
1426 | void | |
1427 | syms_of_dbusbind () | |
1428 | { | |
1429 | ||
1430 | Qdbus_get_unique_name = intern ("dbus-get-unique-name"); | |
1431 | staticpro (&Qdbus_get_unique_name); | |
1432 | defsubr (&Sdbus_get_unique_name); | |
1433 | ||
1434 | Qdbus_call_method = intern ("dbus-call-method"); | |
1435 | staticpro (&Qdbus_call_method); | |
1436 | defsubr (&Sdbus_call_method); | |
1437 | ||
8c7a4ac5 MA |
1438 | Qdbus_method_return_internal = intern ("dbus-method-return-internal"); |
1439 | staticpro (&Qdbus_method_return_internal); | |
1440 | defsubr (&Sdbus_method_return_internal); | |
abe136ee | 1441 | |
033b73e2 MA |
1442 | Qdbus_send_signal = intern ("dbus-send-signal"); |
1443 | staticpro (&Qdbus_send_signal); | |
1444 | defsubr (&Sdbus_send_signal); | |
1445 | ||
1446 | Qdbus_register_signal = intern ("dbus-register-signal"); | |
1447 | staticpro (&Qdbus_register_signal); | |
1448 | defsubr (&Sdbus_register_signal); | |
1449 | ||
17bc8f94 MA |
1450 | Qdbus_register_method = intern ("dbus-register-method"); |
1451 | staticpro (&Qdbus_register_method); | |
1452 | defsubr (&Sdbus_register_method); | |
1453 | ||
033b73e2 MA |
1454 | Qdbus_error = intern ("dbus-error"); |
1455 | staticpro (&Qdbus_error); | |
1456 | Fput (Qdbus_error, Qerror_conditions, | |
1457 | list2 (Qdbus_error, Qerror)); | |
1458 | Fput (Qdbus_error, Qerror_message, | |
1459 | build_string ("D-Bus error")); | |
1460 | ||
39abdd4a MA |
1461 | QCdbus_system_bus = intern (":system"); |
1462 | staticpro (&QCdbus_system_bus); | |
1463 | ||
1464 | QCdbus_session_bus = intern (":session"); | |
1465 | staticpro (&QCdbus_session_bus); | |
033b73e2 | 1466 | |
54371585 MA |
1467 | QCdbus_type_byte = intern (":byte"); |
1468 | staticpro (&QCdbus_type_byte); | |
1469 | ||
1470 | QCdbus_type_boolean = intern (":boolean"); | |
1471 | staticpro (&QCdbus_type_boolean); | |
1472 | ||
1473 | QCdbus_type_int16 = intern (":int16"); | |
1474 | staticpro (&QCdbus_type_int16); | |
1475 | ||
1476 | QCdbus_type_uint16 = intern (":uint16"); | |
1477 | staticpro (&QCdbus_type_uint16); | |
1478 | ||
1479 | QCdbus_type_int32 = intern (":int32"); | |
1480 | staticpro (&QCdbus_type_int32); | |
1481 | ||
1482 | QCdbus_type_uint32 = intern (":uint32"); | |
1483 | staticpro (&QCdbus_type_uint32); | |
1484 | ||
1485 | QCdbus_type_int64 = intern (":int64"); | |
1486 | staticpro (&QCdbus_type_int64); | |
1487 | ||
1488 | QCdbus_type_uint64 = intern (":uint64"); | |
1489 | staticpro (&QCdbus_type_uint64); | |
1490 | ||
1491 | QCdbus_type_double = intern (":double"); | |
1492 | staticpro (&QCdbus_type_double); | |
1493 | ||
1494 | QCdbus_type_string = intern (":string"); | |
1495 | staticpro (&QCdbus_type_string); | |
1496 | ||
1497 | QCdbus_type_object_path = intern (":object-path"); | |
1498 | staticpro (&QCdbus_type_object_path); | |
1499 | ||
1500 | QCdbus_type_signature = intern (":signature"); | |
1501 | staticpro (&QCdbus_type_signature); | |
1502 | ||
1503 | QCdbus_type_array = intern (":array"); | |
1504 | staticpro (&QCdbus_type_array); | |
1505 | ||
1506 | QCdbus_type_variant = intern (":variant"); | |
1507 | staticpro (&QCdbus_type_variant); | |
1508 | ||
1509 | QCdbus_type_struct = intern (":struct"); | |
1510 | staticpro (&QCdbus_type_struct); | |
1511 | ||
1512 | QCdbus_type_dict_entry = intern (":dict-entry"); | |
1513 | staticpro (&QCdbus_type_dict_entry); | |
1514 | ||
5125905e MA |
1515 | DEFVAR_LISP ("dbus-registered-functions-table", |
1516 | &Vdbus_registered_functions_table, | |
39abdd4a | 1517 | doc: /* Hash table of registered functions for D-Bus. |
f5306ca3 | 1518 | The key in the hash table is the list (BUS INTERFACE MEMBER). BUS is |
a31d47c7 MA |
1519 | either the symbol `:system' or the symbol `:session'. INTERFACE is a |
1520 | string which denotes a D-Bus interface, and MEMBER, also a string, is | |
1521 | either a method or a signal INTERFACE is offering. All arguments but | |
1522 | BUS must not be nil. | |
1523 | ||
f5306ca3 MA |
1524 | The value in the hash table is a list of quadruple lists |
1525 | \((UNAME SERVICE PATH HANDLER) (UNAME SERVICE PATH HANDLER) ...). | |
a31d47c7 MA |
1526 | SERVICE is the service name as registered, UNAME is the corresponding |
1527 | unique name. PATH is the object path of the sending object. All of | |
f5306ca3 MA |
1528 | them can be nil, which means a wildcard then. HANDLER is the function |
1529 | to be called when a D-Bus message, which matches the key criteria, | |
a31d47c7 | 1530 | arrives. */); |
39abdd4a MA |
1531 | /* We initialize Vdbus_registered_functions_table in dbus.el, |
1532 | because we need to define a hash table function first. */ | |
1533 | Vdbus_registered_functions_table = Qnil; | |
033b73e2 MA |
1534 | |
1535 | DEFVAR_LISP ("dbus-debug", &Vdbus_debug, | |
39abdd4a | 1536 | doc: /* If non-nil, debug messages of D-Bus bindings are raised. */); |
033b73e2 MA |
1537 | #ifdef DBUS_DEBUG |
1538 | Vdbus_debug = Qt; | |
1539 | #else | |
1540 | Vdbus_debug = Qnil; | |
1541 | #endif | |
1542 | ||
1543 | Fprovide (intern ("dbusbind"), Qnil); | |
1544 | ||
1545 | } | |
1546 | ||
1547 | #endif /* HAVE_DBUS */ | |
79f10da0 MB |
1548 | |
1549 | /* arch-tag: 0e828477-b571-4fe4-b559-5c9211bc14b8 | |
1550 | (do not change this comment) */ |