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033b73e2 | 1 | /* Elisp bindings for D-Bus. |
114f9c96 | 2 | Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
033b73e2 MA |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
9ec0b715 | 6 | GNU Emacs is free software: you can redistribute it and/or modify |
033b73e2 | 7 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
8 | the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. | |
033b73e2 MA |
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 | |
9ec0b715 | 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
033b73e2 | 18 | |
08a494a3 | 19 | #include <config.h> |
033b73e2 MA |
20 | |
21 | #ifdef HAVE_DBUS | |
f5306ca3 | 22 | #include <stdio.h> |
033b73e2 | 23 | #include <dbus/dbus.h> |
d7306fe6 | 24 | #include <setjmp.h> |
033b73e2 MA |
25 | #include "lisp.h" |
26 | #include "frame.h" | |
27 | #include "termhooks.h" | |
28 | #include "keyboard.h" | |
3fad2ad2 | 29 | #include "process.h" |
033b73e2 MA |
30 | |
31 | \f | |
32 | /* Subroutines. */ | |
058ed861 | 33 | Lisp_Object Qdbus_init_bus; |
0c372655 | 34 | Lisp_Object Qdbus_close_bus; |
033b73e2 MA |
35 | Lisp_Object Qdbus_get_unique_name; |
36 | Lisp_Object Qdbus_call_method; | |
13ecc6dc | 37 | Lisp_Object Qdbus_call_method_asynchronously; |
8c7a4ac5 | 38 | Lisp_Object Qdbus_method_return_internal; |
13ecc6dc | 39 | Lisp_Object Qdbus_method_error_internal; |
033b73e2 MA |
40 | Lisp_Object Qdbus_send_signal; |
41 | Lisp_Object Qdbus_register_signal; | |
17bc8f94 | 42 | Lisp_Object Qdbus_register_method; |
033b73e2 MA |
43 | |
44 | /* D-Bus error symbol. */ | |
45 | Lisp_Object Qdbus_error; | |
46 | ||
47 | /* Lisp symbols of the system and session buses. */ | |
39abdd4a | 48 | Lisp_Object QCdbus_system_bus, QCdbus_session_bus; |
033b73e2 | 49 | |
90b3fc84 MA |
50 | /* Lisp symbol for method call timeout. */ |
51 | Lisp_Object QCdbus_timeout; | |
52 | ||
54371585 MA |
53 | /* Lisp symbols of D-Bus types. */ |
54 | Lisp_Object QCdbus_type_byte, QCdbus_type_boolean; | |
55 | Lisp_Object QCdbus_type_int16, QCdbus_type_uint16; | |
56 | Lisp_Object QCdbus_type_int32, QCdbus_type_uint32; | |
57 | Lisp_Object QCdbus_type_int64, QCdbus_type_uint64; | |
58 | Lisp_Object QCdbus_type_double, QCdbus_type_string; | |
59 | Lisp_Object QCdbus_type_object_path, QCdbus_type_signature; | |
60 | Lisp_Object QCdbus_type_array, QCdbus_type_variant; | |
61 | Lisp_Object QCdbus_type_struct, QCdbus_type_dict_entry; | |
62 | ||
0c372655 MA |
63 | /* Registered buses. */ |
64 | Lisp_Object Vdbus_registered_buses; | |
65 | ||
39abdd4a | 66 | /* Hash table which keeps function definitions. */ |
f04bb9b2 | 67 | Lisp_Object Vdbus_registered_objects_table; |
033b73e2 MA |
68 | |
69 | /* Whether to debug D-Bus. */ | |
70 | Lisp_Object Vdbus_debug; | |
71 | ||
1dae9197 MA |
72 | /* Whether we are reading a D-Bus event. */ |
73 | int xd_in_read_queued_messages = 0; | |
74 | ||
033b73e2 MA |
75 | \f |
76 | /* We use "xd_" and "XD_" as prefix for all internal symbols, because | |
77 | we don't want to poison other namespaces with "dbus_". */ | |
78 | ||
1dae9197 MA |
79 | /* Raise a signal. If we are reading events, we cannot signal; we |
80 | throw to xd_read_queued_messages then. */ | |
81 | #define XD_SIGNAL1(arg) \ | |
82 | do { \ | |
83 | if (xd_in_read_queued_messages) \ | |
84 | Fthrow (Qdbus_error, Qnil); \ | |
85 | else \ | |
86 | xsignal1 (Qdbus_error, arg); \ | |
87 | } while (0) | |
88 | ||
89 | #define XD_SIGNAL2(arg1, arg2) \ | |
90 | do { \ | |
91 | if (xd_in_read_queued_messages) \ | |
92 | Fthrow (Qdbus_error, Qnil); \ | |
93 | else \ | |
94 | xsignal2 (Qdbus_error, arg1, arg2); \ | |
95 | } while (0) | |
96 | ||
97 | #define XD_SIGNAL3(arg1, arg2, arg3) \ | |
98 | do { \ | |
99 | if (xd_in_read_queued_messages) \ | |
100 | Fthrow (Qdbus_error, Qnil); \ | |
101 | else \ | |
102 | xsignal3 (Qdbus_error, arg1, arg2, arg3); \ | |
103 | } while (0) | |
104 | ||
54371585 | 105 | /* Raise a Lisp error from a D-Bus ERROR. */ |
033b73e2 | 106 | #define XD_ERROR(error) \ |
17bc8f94 | 107 | do { \ |
033b73e2 | 108 | char s[1024]; \ |
4baa2377 | 109 | strncpy (s, error.message, 1023); \ |
033b73e2 MA |
110 | dbus_error_free (&error); \ |
111 | /* Remove the trailing newline. */ \ | |
112 | if (strchr (s, '\n') != NULL) \ | |
113 | s[strlen (s) - 1] = '\0'; \ | |
1dae9197 | 114 | XD_SIGNAL1 (build_string (s)); \ |
17bc8f94 | 115 | } while (0) |
033b73e2 MA |
116 | |
117 | /* Macros for debugging. In order to enable them, build with | |
0c372655 | 118 | "MYCPPFLAGS='-DDBUS_DEBUG -Wall' make". */ |
033b73e2 MA |
119 | #ifdef DBUS_DEBUG |
120 | #define XD_DEBUG_MESSAGE(...) \ | |
17bc8f94 | 121 | do { \ |
033b73e2 | 122 | char s[1024]; \ |
4baa2377 | 123 | snprintf (s, 1023, __VA_ARGS__); \ |
033b73e2 MA |
124 | printf ("%s: %s\n", __func__, s); \ |
125 | message ("%s: %s", __func__, s); \ | |
17bc8f94 | 126 | } while (0) |
033b73e2 | 127 | #define XD_DEBUG_VALID_LISP_OBJECT_P(object) \ |
17bc8f94 MA |
128 | do { \ |
129 | if (!valid_lisp_object_p (object)) \ | |
130 | { \ | |
131 | XD_DEBUG_MESSAGE ("%d Assertion failure", __LINE__); \ | |
1dae9197 | 132 | XD_SIGNAL1 (build_string ("Assertion failure")); \ |
17bc8f94 MA |
133 | } \ |
134 | } while (0) | |
033b73e2 MA |
135 | |
136 | #else /* !DBUS_DEBUG */ | |
17bc8f94 MA |
137 | #define XD_DEBUG_MESSAGE(...) \ |
138 | do { \ | |
139 | if (!NILP (Vdbus_debug)) \ | |
140 | { \ | |
141 | char s[1024]; \ | |
4baa2377 | 142 | snprintf (s, 1023, __VA_ARGS__); \ |
17bc8f94 | 143 | message ("%s: %s", __func__, s); \ |
80f9d13b | 144 | } \ |
17bc8f94 | 145 | } while (0) |
033b73e2 MA |
146 | #define XD_DEBUG_VALID_LISP_OBJECT_P(object) |
147 | #endif | |
148 | ||
87cf1a39 MA |
149 | /* Check whether TYPE is a basic DBusType. */ |
150 | #define XD_BASIC_DBUS_TYPE(type) \ | |
151 | ((type == DBUS_TYPE_BYTE) \ | |
152 | || (type == DBUS_TYPE_BOOLEAN) \ | |
153 | || (type == DBUS_TYPE_INT16) \ | |
154 | || (type == DBUS_TYPE_UINT16) \ | |
155 | || (type == DBUS_TYPE_INT32) \ | |
156 | || (type == DBUS_TYPE_UINT32) \ | |
157 | || (type == DBUS_TYPE_INT64) \ | |
158 | || (type == DBUS_TYPE_UINT64) \ | |
159 | || (type == DBUS_TYPE_DOUBLE) \ | |
160 | || (type == DBUS_TYPE_STRING) \ | |
161 | || (type == DBUS_TYPE_OBJECT_PATH) \ | |
162 | || (type == DBUS_TYPE_SIGNATURE)) | |
163 | ||
78c38319 MA |
164 | /* This was a macro. On Solaris 2.11 it was said to compile for |
165 | hours, when optimzation is enabled. So we have transferred it into | |
166 | a function. */ | |
54371585 MA |
167 | /* Determine the DBusType of a given Lisp symbol. OBJECT must be one |
168 | of the predefined D-Bus type symbols. */ | |
78c38319 | 169 | static int |
971de7fb | 170 | xd_symbol_to_dbus_type (Lisp_Object object) |
78c38319 MA |
171 | { |
172 | return | |
173 | ((EQ (object, QCdbus_type_byte)) ? DBUS_TYPE_BYTE | |
174 | : (EQ (object, QCdbus_type_boolean)) ? DBUS_TYPE_BOOLEAN | |
175 | : (EQ (object, QCdbus_type_int16)) ? DBUS_TYPE_INT16 | |
176 | : (EQ (object, QCdbus_type_uint16)) ? DBUS_TYPE_UINT16 | |
177 | : (EQ (object, QCdbus_type_int32)) ? DBUS_TYPE_INT32 | |
178 | : (EQ (object, QCdbus_type_uint32)) ? DBUS_TYPE_UINT32 | |
179 | : (EQ (object, QCdbus_type_int64)) ? DBUS_TYPE_INT64 | |
180 | : (EQ (object, QCdbus_type_uint64)) ? DBUS_TYPE_UINT64 | |
181 | : (EQ (object, QCdbus_type_double)) ? DBUS_TYPE_DOUBLE | |
182 | : (EQ (object, QCdbus_type_string)) ? DBUS_TYPE_STRING | |
183 | : (EQ (object, QCdbus_type_object_path)) ? DBUS_TYPE_OBJECT_PATH | |
184 | : (EQ (object, QCdbus_type_signature)) ? DBUS_TYPE_SIGNATURE | |
185 | : (EQ (object, QCdbus_type_array)) ? DBUS_TYPE_ARRAY | |
186 | : (EQ (object, QCdbus_type_variant)) ? DBUS_TYPE_VARIANT | |
187 | : (EQ (object, QCdbus_type_struct)) ? DBUS_TYPE_STRUCT | |
188 | : (EQ (object, QCdbus_type_dict_entry)) ? DBUS_TYPE_DICT_ENTRY | |
189 | : DBUS_TYPE_INVALID); | |
190 | } | |
87cf1a39 MA |
191 | |
192 | /* Check whether a Lisp symbol is a predefined D-Bus type symbol. */ | |
193 | #define XD_DBUS_TYPE_P(object) \ | |
78c38319 | 194 | (SYMBOLP (object) && ((xd_symbol_to_dbus_type (object) != DBUS_TYPE_INVALID))) |
54371585 MA |
195 | |
196 | /* Determine the DBusType of a given Lisp OBJECT. It is used to | |
033b73e2 MA |
197 | convert Lisp objects, being arguments of `dbus-call-method' or |
198 | `dbus-send-signal', into corresponding C values appended as | |
199 | arguments to a D-Bus message. */ | |
87cf1a39 MA |
200 | #define XD_OBJECT_TO_DBUS_TYPE(object) \ |
201 | ((EQ (object, Qt) || EQ (object, Qnil)) ? DBUS_TYPE_BOOLEAN \ | |
202 | : (NATNUMP (object)) ? DBUS_TYPE_UINT32 \ | |
203 | : (INTEGERP (object)) ? DBUS_TYPE_INT32 \ | |
204 | : (FLOATP (object)) ? DBUS_TYPE_DOUBLE \ | |
205 | : (STRINGP (object)) ? DBUS_TYPE_STRING \ | |
78c38319 | 206 | : (XD_DBUS_TYPE_P (object)) ? xd_symbol_to_dbus_type (object) \ |
07a4cb03 MA |
207 | : (CONSP (object)) \ |
208 | ? ((XD_DBUS_TYPE_P (CAR_SAFE (object))) \ | |
78c38319 | 209 | ? ((XD_BASIC_DBUS_TYPE (xd_symbol_to_dbus_type (CAR_SAFE (object)))) \ |
07a4cb03 | 210 | ? DBUS_TYPE_ARRAY \ |
78c38319 | 211 | : xd_symbol_to_dbus_type (CAR_SAFE (object))) \ |
07a4cb03 | 212 | : DBUS_TYPE_ARRAY) \ |
87cf1a39 MA |
213 | : DBUS_TYPE_INVALID) |
214 | ||
215 | /* Return a list pointer which does not have a Lisp symbol as car. */ | |
a8e72f4f | 216 | #define XD_NEXT_VALUE(object) \ |
5125905e | 217 | ((XD_DBUS_TYPE_P (CAR_SAFE (object))) ? CDR_SAFE (object) : object) |
87cf1a39 MA |
218 | |
219 | /* Compute SIGNATURE of OBJECT. It must have a form that it can be | |
220 | used in dbus_message_iter_open_container. DTYPE is the DBusType | |
221 | the object is related to. It is passed as argument, because it | |
222 | cannot be detected in basic type objects, when they are preceded by | |
223 | a type symbol. PARENT_TYPE is the DBusType of a container this | |
224 | signature is embedded, or DBUS_TYPE_INVALID. It is needed for the | |
225 | check that DBUS_TYPE_DICT_ENTRY occurs only as array element. */ | |
78c38319 | 226 | static void |
971de7fb | 227 | xd_signature (char *signature, unsigned int dtype, unsigned int parent_type, Lisp_Object object) |
033b73e2 | 228 | { |
87cf1a39 MA |
229 | unsigned int subtype; |
230 | Lisp_Object elt; | |
231 | char x[DBUS_MAXIMUM_SIGNATURE_LENGTH]; | |
232 | ||
233 | elt = object; | |
033b73e2 | 234 | |
033b73e2 MA |
235 | switch (dtype) |
236 | { | |
54371585 MA |
237 | case DBUS_TYPE_BYTE: |
238 | case DBUS_TYPE_UINT16: | |
033b73e2 | 239 | case DBUS_TYPE_UINT32: |
54371585 MA |
240 | case DBUS_TYPE_UINT64: |
241 | CHECK_NATNUM (object); | |
87cf1a39 | 242 | sprintf (signature, "%c", dtype); |
54371585 | 243 | break; |
87cf1a39 | 244 | |
54371585 MA |
245 | case DBUS_TYPE_BOOLEAN: |
246 | if (!EQ (object, Qt) && !EQ (object, Qnil)) | |
247 | wrong_type_argument (intern ("booleanp"), object); | |
87cf1a39 | 248 | sprintf (signature, "%c", dtype); |
54371585 | 249 | break; |
87cf1a39 | 250 | |
54371585 | 251 | case DBUS_TYPE_INT16: |
033b73e2 | 252 | case DBUS_TYPE_INT32: |
54371585 MA |
253 | case DBUS_TYPE_INT64: |
254 | CHECK_NUMBER (object); | |
87cf1a39 | 255 | sprintf (signature, "%c", dtype); |
54371585 | 256 | break; |
87cf1a39 | 257 | |
033b73e2 | 258 | case DBUS_TYPE_DOUBLE: |
54371585 | 259 | CHECK_FLOAT (object); |
87cf1a39 | 260 | sprintf (signature, "%c", dtype); |
54371585 | 261 | break; |
87cf1a39 | 262 | |
033b73e2 | 263 | case DBUS_TYPE_STRING: |
54371585 MA |
264 | case DBUS_TYPE_OBJECT_PATH: |
265 | case DBUS_TYPE_SIGNATURE: | |
266 | CHECK_STRING (object); | |
87cf1a39 | 267 | sprintf (signature, "%c", dtype); |
54371585 | 268 | break; |
87cf1a39 | 269 | |
54371585 | 270 | case DBUS_TYPE_ARRAY: |
9af5078b | 271 | /* Check that all list elements have the same D-Bus type. For |
87cf1a39 MA |
272 | complex element types, we just check the container type, not |
273 | the whole element's signature. */ | |
54371585 | 274 | CHECK_CONS (object); |
87cf1a39 | 275 | |
5125905e MA |
276 | /* Type symbol is optional. */ |
277 | if (EQ (QCdbus_type_array, CAR_SAFE (elt))) | |
87cf1a39 | 278 | elt = XD_NEXT_VALUE (elt); |
5125905e MA |
279 | |
280 | /* If the array is empty, DBUS_TYPE_STRING is the default | |
281 | element type. */ | |
282 | if (NILP (elt)) | |
283 | { | |
284 | subtype = DBUS_TYPE_STRING; | |
285 | strcpy (x, DBUS_TYPE_STRING_AS_STRING); | |
286 | } | |
287 | else | |
288 | { | |
289 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); | |
290 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
291 | } | |
292 | ||
293 | /* If the element type is DBUS_TYPE_SIGNATURE, and this is the | |
294 | only element, the value of this element is used as he array's | |
295 | element signature. */ | |
296 | if ((subtype == DBUS_TYPE_SIGNATURE) | |
297 | && STRINGP (CAR_SAFE (XD_NEXT_VALUE (elt))) | |
298 | && NILP (CDR_SAFE (XD_NEXT_VALUE (elt)))) | |
299 | strcpy (x, SDATA (CAR_SAFE (XD_NEXT_VALUE (elt)))); | |
87cf1a39 MA |
300 | |
301 | while (!NILP (elt)) | |
302 | { | |
5125905e MA |
303 | if (subtype != XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt))) |
304 | wrong_type_argument (intern ("D-Bus"), CAR_SAFE (elt)); | |
305 | elt = CDR_SAFE (XD_NEXT_VALUE (elt)); | |
87cf1a39 MA |
306 | } |
307 | ||
308 | sprintf (signature, "%c%s", dtype, x); | |
54371585 | 309 | break; |
87cf1a39 | 310 | |
54371585 | 311 | case DBUS_TYPE_VARIANT: |
9af5078b | 312 | /* Check that there is exactly one list element. */ |
54371585 | 313 | CHECK_CONS (object); |
87cf1a39 MA |
314 | |
315 | elt = XD_NEXT_VALUE (elt); | |
5125905e MA |
316 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
317 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
87cf1a39 | 318 | |
5125905e | 319 | if (!NILP (CDR_SAFE (XD_NEXT_VALUE (elt)))) |
87cf1a39 | 320 | wrong_type_argument (intern ("D-Bus"), |
5125905e | 321 | CAR_SAFE (CDR_SAFE (XD_NEXT_VALUE (elt)))); |
87cf1a39 | 322 | |
a271e124 | 323 | sprintf (signature, "%c", dtype); |
54371585 | 324 | break; |
87cf1a39 | 325 | |
54371585 | 326 | case DBUS_TYPE_STRUCT: |
9af5078b MA |
327 | /* A struct list might contain any number of elements with |
328 | different types. No further check needed. */ | |
87cf1a39 MA |
329 | CHECK_CONS (object); |
330 | ||
331 | elt = XD_NEXT_VALUE (elt); | |
332 | ||
333 | /* Compose the signature from the elements. It is enclosed by | |
334 | parentheses. */ | |
335 | sprintf (signature, "%c", DBUS_STRUCT_BEGIN_CHAR ); | |
336 | while (!NILP (elt)) | |
337 | { | |
5125905e MA |
338 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
339 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
87cf1a39 | 340 | strcat (signature, x); |
5125905e | 341 | elt = CDR_SAFE (XD_NEXT_VALUE (elt)); |
87cf1a39 | 342 | } |
0ef50993 | 343 | strcat (signature, DBUS_STRUCT_END_CHAR_AS_STRING); |
54371585 | 344 | break; |
54371585 | 345 | |
87cf1a39 | 346 | case DBUS_TYPE_DICT_ENTRY: |
9af5078b MA |
347 | /* Check that there are exactly two list elements, and the first |
348 | one is of basic type. The dictionary entry itself must be an | |
349 | element of an array. */ | |
87cf1a39 | 350 | CHECK_CONS (object); |
54371585 | 351 | |
9af5078b | 352 | /* Check the parent object type. */ |
87cf1a39 MA |
353 | if (parent_type != DBUS_TYPE_ARRAY) |
354 | wrong_type_argument (intern ("D-Bus"), object); | |
54371585 | 355 | |
87cf1a39 MA |
356 | /* Compose the signature from the elements. It is enclosed by |
357 | curly braces. */ | |
358 | sprintf (signature, "%c", DBUS_DICT_ENTRY_BEGIN_CHAR); | |
54371585 | 359 | |
87cf1a39 MA |
360 | /* First element. */ |
361 | elt = XD_NEXT_VALUE (elt); | |
5125905e MA |
362 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
363 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
87cf1a39 | 364 | strcat (signature, x); |
54371585 | 365 | |
87cf1a39 | 366 | if (!XD_BASIC_DBUS_TYPE (subtype)) |
5125905e | 367 | wrong_type_argument (intern ("D-Bus"), CAR_SAFE (XD_NEXT_VALUE (elt))); |
54371585 | 368 | |
87cf1a39 | 369 | /* Second element. */ |
5125905e MA |
370 | elt = CDR_SAFE (XD_NEXT_VALUE (elt)); |
371 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); | |
372 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); | |
87cf1a39 | 373 | strcat (signature, x); |
54371585 | 374 | |
5125905e | 375 | if (!NILP (CDR_SAFE (XD_NEXT_VALUE (elt)))) |
87cf1a39 | 376 | wrong_type_argument (intern ("D-Bus"), |
5125905e | 377 | CAR_SAFE (CDR_SAFE (XD_NEXT_VALUE (elt)))); |
54371585 | 378 | |
87cf1a39 | 379 | /* Closing signature. */ |
0ef50993 | 380 | strcat (signature, DBUS_DICT_ENTRY_END_CHAR_AS_STRING); |
87cf1a39 | 381 | break; |
54371585 | 382 | |
87cf1a39 MA |
383 | default: |
384 | wrong_type_argument (intern ("D-Bus"), object); | |
54371585 MA |
385 | } |
386 | ||
87cf1a39 MA |
387 | XD_DEBUG_MESSAGE ("%s", signature); |
388 | } | |
54371585 | 389 | |
87cf1a39 MA |
390 | /* Append C value, extracted from Lisp OBJECT, to iteration ITER. |
391 | DTYPE must be a valid DBusType. It is used to convert Lisp | |
392 | objects, being arguments of `dbus-call-method' or | |
393 | `dbus-send-signal', into corresponding C values appended as | |
394 | arguments to a D-Bus message. */ | |
78c38319 | 395 | static void |
971de7fb | 396 | xd_append_arg (unsigned int dtype, Lisp_Object object, DBusMessageIter *iter) |
87cf1a39 | 397 | { |
87cf1a39 MA |
398 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
399 | DBusMessageIter subiter; | |
87cf1a39 MA |
400 | |
401 | if (XD_BASIC_DBUS_TYPE (dtype)) | |
17bc8f94 MA |
402 | switch (dtype) |
403 | { | |
404 | case DBUS_TYPE_BYTE: | |
e454a4a3 | 405 | CHECK_NUMBER (object); |
54371585 | 406 | { |
8bba1b5c | 407 | unsigned char val = XUINT (object) & 0xFF; |
17bc8f94 MA |
408 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
409 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
1dae9197 | 410 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
17bc8f94 MA |
411 | return; |
412 | } | |
87cf1a39 | 413 | |
17bc8f94 MA |
414 | case DBUS_TYPE_BOOLEAN: |
415 | { | |
416 | dbus_bool_t val = (NILP (object)) ? FALSE : TRUE; | |
417 | XD_DEBUG_MESSAGE ("%c %s", dtype, (val == FALSE) ? "false" : "true"); | |
418 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
1dae9197 | 419 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
17bc8f94 MA |
420 | return; |
421 | } | |
87cf1a39 | 422 | |
17bc8f94 | 423 | case DBUS_TYPE_INT16: |
e454a4a3 | 424 | CHECK_NUMBER (object); |
17bc8f94 MA |
425 | { |
426 | dbus_int16_t val = XINT (object); | |
427 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); | |
428 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
1dae9197 | 429 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
17bc8f94 MA |
430 | return; |
431 | } | |
87cf1a39 | 432 | |
17bc8f94 | 433 | case DBUS_TYPE_UINT16: |
e454a4a3 | 434 | CHECK_NUMBER (object); |
17bc8f94 MA |
435 | { |
436 | dbus_uint16_t val = XUINT (object); | |
437 | XD_DEBUG_MESSAGE ("%c %u", dtype, (unsigned int) val); | |
438 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
1dae9197 | 439 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
17bc8f94 MA |
440 | return; |
441 | } | |
87cf1a39 | 442 | |
17bc8f94 | 443 | case DBUS_TYPE_INT32: |
e454a4a3 | 444 | CHECK_NUMBER (object); |
17bc8f94 MA |
445 | { |
446 | dbus_int32_t val = XINT (object); | |
447 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); | |
448 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
1dae9197 | 449 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
17bc8f94 MA |
450 | return; |
451 | } | |
87cf1a39 | 452 | |
17bc8f94 | 453 | case DBUS_TYPE_UINT32: |
e454a4a3 | 454 | CHECK_NUMBER (object); |
17bc8f94 MA |
455 | { |
456 | dbus_uint32_t val = XUINT (object); | |
457 | XD_DEBUG_MESSAGE ("%c %u", dtype, val); | |
458 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
1dae9197 | 459 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
17bc8f94 MA |
460 | return; |
461 | } | |
87cf1a39 | 462 | |
17bc8f94 | 463 | case DBUS_TYPE_INT64: |
e454a4a3 | 464 | CHECK_NUMBER (object); |
17bc8f94 MA |
465 | { |
466 | dbus_int64_t val = XINT (object); | |
467 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); | |
468 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
1dae9197 | 469 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
17bc8f94 MA |
470 | return; |
471 | } | |
87cf1a39 | 472 | |
17bc8f94 | 473 | case DBUS_TYPE_UINT64: |
e454a4a3 | 474 | CHECK_NUMBER (object); |
17bc8f94 MA |
475 | { |
476 | dbus_uint64_t val = XUINT (object); | |
477 | XD_DEBUG_MESSAGE ("%c %u", dtype, (unsigned int) val); | |
478 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
1dae9197 | 479 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
17bc8f94 | 480 | return; |
54371585 | 481 | } |
87cf1a39 | 482 | |
17bc8f94 | 483 | case DBUS_TYPE_DOUBLE: |
e454a4a3 | 484 | CHECK_FLOAT (object); |
f601cdf3 KR |
485 | { |
486 | double val = XFLOAT_DATA (object); | |
487 | XD_DEBUG_MESSAGE ("%c %f", dtype, val); | |
488 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
489 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); | |
490 | return; | |
491 | } | |
17bc8f94 MA |
492 | |
493 | case DBUS_TYPE_STRING: | |
494 | case DBUS_TYPE_OBJECT_PATH: | |
495 | case DBUS_TYPE_SIGNATURE: | |
e454a4a3 | 496 | CHECK_STRING (object); |
17bc8f94 | 497 | { |
e454a4a3 SM |
498 | /* We need to send a valid UTF-8 string. We could encode `object' |
499 | but by not encoding it, we guarantee it's valid utf-8, even if | |
500 | it contains eight-bit-bytes. Of course, you can still send | |
501 | manually-crafted junk by passing a unibyte string. */ | |
502 | char *val = SDATA (object); | |
17bc8f94 MA |
503 | XD_DEBUG_MESSAGE ("%c %s", dtype, val); |
504 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) | |
1dae9197 | 505 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
17bc8f94 MA |
506 | return; |
507 | } | |
508 | } | |
87cf1a39 MA |
509 | |
510 | else /* Compound types. */ | |
511 | { | |
512 | ||
513 | /* All compound types except array have a type symbol. For | |
514 | array, it is optional. Skip it. */ | |
5125905e | 515 | if (!XD_BASIC_DBUS_TYPE (XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)))) |
87cf1a39 MA |
516 | object = XD_NEXT_VALUE (object); |
517 | ||
518 | /* Open new subiteration. */ | |
519 | switch (dtype) | |
520 | { | |
521 | case DBUS_TYPE_ARRAY: | |
5125905e MA |
522 | /* An array has only elements of the same type. So it is |
523 | sufficient to check the first element's signature | |
524 | only. */ | |
525 | ||
526 | if (NILP (object)) | |
527 | /* If the array is empty, DBUS_TYPE_STRING is the default | |
528 | element type. */ | |
529 | strcpy (signature, DBUS_TYPE_STRING_AS_STRING); | |
530 | ||
531 | else | |
532 | /* If the element type is DBUS_TYPE_SIGNATURE, and this is | |
533 | the only element, the value of this element is used as | |
534 | the array's element signature. */ | |
535 | if ((XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)) | |
536 | == DBUS_TYPE_SIGNATURE) | |
537 | && STRINGP (CAR_SAFE (XD_NEXT_VALUE (object))) | |
538 | && NILP (CDR_SAFE (XD_NEXT_VALUE (object)))) | |
539 | { | |
540 | strcpy (signature, SDATA (CAR_SAFE (XD_NEXT_VALUE (object)))); | |
541 | object = CDR_SAFE (XD_NEXT_VALUE (object)); | |
542 | } | |
543 | ||
544 | else | |
545 | xd_signature (signature, | |
546 | XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)), | |
547 | dtype, CAR_SAFE (XD_NEXT_VALUE (object))); | |
548 | ||
549 | XD_DEBUG_MESSAGE ("%c %s %s", dtype, signature, | |
550 | SDATA (format2 ("%s", object, Qnil))); | |
551 | if (!dbus_message_iter_open_container (iter, dtype, | |
552 | signature, &subiter)) | |
1dae9197 MA |
553 | XD_SIGNAL3 (build_string ("Cannot open container"), |
554 | make_number (dtype), build_string (signature)); | |
5125905e MA |
555 | break; |
556 | ||
87cf1a39 | 557 | case DBUS_TYPE_VARIANT: |
5125905e MA |
558 | /* A variant has just one element. */ |
559 | xd_signature (signature, XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)), | |
560 | dtype, CAR_SAFE (XD_NEXT_VALUE (object))); | |
561 | ||
87cf1a39 MA |
562 | XD_DEBUG_MESSAGE ("%c %s %s", dtype, signature, |
563 | SDATA (format2 ("%s", object, Qnil))); | |
564 | if (!dbus_message_iter_open_container (iter, dtype, | |
565 | signature, &subiter)) | |
1dae9197 MA |
566 | XD_SIGNAL3 (build_string ("Cannot open container"), |
567 | make_number (dtype), build_string (signature)); | |
87cf1a39 MA |
568 | break; |
569 | ||
570 | case DBUS_TYPE_STRUCT: | |
571 | case DBUS_TYPE_DICT_ENTRY: | |
9af5078b | 572 | /* These containers do not require a signature. */ |
87cf1a39 MA |
573 | XD_DEBUG_MESSAGE ("%c %s", dtype, |
574 | SDATA (format2 ("%s", object, Qnil))); | |
575 | if (!dbus_message_iter_open_container (iter, dtype, NULL, &subiter)) | |
1dae9197 MA |
576 | XD_SIGNAL2 (build_string ("Cannot open container"), |
577 | make_number (dtype)); | |
87cf1a39 MA |
578 | break; |
579 | } | |
580 | ||
581 | /* Loop over list elements. */ | |
582 | while (!NILP (object)) | |
583 | { | |
5125905e | 584 | dtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)); |
87cf1a39 MA |
585 | object = XD_NEXT_VALUE (object); |
586 | ||
5125905e | 587 | xd_append_arg (dtype, CAR_SAFE (object), &subiter); |
87cf1a39 | 588 | |
5125905e | 589 | object = CDR_SAFE (object); |
87cf1a39 MA |
590 | } |
591 | ||
9af5078b | 592 | /* Close the subiteration. */ |
87cf1a39 | 593 | if (!dbus_message_iter_close_container (iter, &subiter)) |
1dae9197 MA |
594 | XD_SIGNAL2 (build_string ("Cannot close container"), |
595 | make_number (dtype)); | |
87cf1a39 | 596 | } |
033b73e2 MA |
597 | } |
598 | ||
599 | /* Retrieve C value from a DBusMessageIter structure ITER, and return | |
600 | a converted Lisp object. The type DTYPE of the argument of the | |
9af5078b MA |
601 | D-Bus message must be a valid DBusType. Compound D-Bus types |
602 | result always in a Lisp list. */ | |
78c38319 | 603 | static Lisp_Object |
971de7fb | 604 | xd_retrieve_arg (unsigned int dtype, DBusMessageIter *iter) |
033b73e2 MA |
605 | { |
606 | ||
607 | switch (dtype) | |
608 | { | |
9af5078b | 609 | case DBUS_TYPE_BYTE: |
9af5078b | 610 | { |
17bc8f94 | 611 | unsigned int val; |
9af5078b | 612 | dbus_message_iter_get_basic (iter, &val); |
17bc8f94 | 613 | val = val & 0xFF; |
9af5078b MA |
614 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
615 | return make_number (val); | |
616 | } | |
617 | ||
033b73e2 MA |
618 | case DBUS_TYPE_BOOLEAN: |
619 | { | |
620 | dbus_bool_t val; | |
621 | dbus_message_iter_get_basic (iter, &val); | |
87cf1a39 | 622 | XD_DEBUG_MESSAGE ("%c %s", dtype, (val == FALSE) ? "false" : "true"); |
033b73e2 MA |
623 | return (val == FALSE) ? Qnil : Qt; |
624 | } | |
87cf1a39 | 625 | |
17bc8f94 | 626 | case DBUS_TYPE_INT16: |
1cae01f7 AS |
627 | { |
628 | dbus_int16_t val; | |
629 | dbus_message_iter_get_basic (iter, &val); | |
630 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); | |
631 | return make_number (val); | |
632 | } | |
633 | ||
17bc8f94 MA |
634 | case DBUS_TYPE_UINT16: |
635 | { | |
636 | dbus_uint16_t val; | |
637 | dbus_message_iter_get_basic (iter, &val); | |
638 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); | |
639 | return make_number (val); | |
640 | } | |
641 | ||
033b73e2 | 642 | case DBUS_TYPE_INT32: |
1cae01f7 AS |
643 | { |
644 | dbus_int32_t val; | |
645 | dbus_message_iter_get_basic (iter, &val); | |
646 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); | |
647 | return make_fixnum_or_float (val); | |
648 | } | |
649 | ||
033b73e2 MA |
650 | case DBUS_TYPE_UINT32: |
651 | { | |
652 | dbus_uint32_t val; | |
653 | dbus_message_iter_get_basic (iter, &val); | |
17bc8f94 | 654 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
1cae01f7 | 655 | return make_fixnum_or_float (val); |
9af5078b MA |
656 | } |
657 | ||
658 | case DBUS_TYPE_INT64: | |
1cae01f7 AS |
659 | { |
660 | dbus_int64_t val; | |
661 | dbus_message_iter_get_basic (iter, &val); | |
662 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); | |
663 | return make_fixnum_or_float (val); | |
664 | } | |
665 | ||
9af5078b MA |
666 | case DBUS_TYPE_UINT64: |
667 | { | |
668 | dbus_uint64_t val; | |
669 | dbus_message_iter_get_basic (iter, &val); | |
17bc8f94 | 670 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); |
9af5078b MA |
671 | return make_fixnum_or_float (val); |
672 | } | |
673 | ||
674 | case DBUS_TYPE_DOUBLE: | |
675 | { | |
676 | double val; | |
677 | dbus_message_iter_get_basic (iter, &val); | |
678 | XD_DEBUG_MESSAGE ("%c %f", dtype, val); | |
679 | return make_float (val); | |
033b73e2 | 680 | } |
87cf1a39 | 681 | |
033b73e2 MA |
682 | case DBUS_TYPE_STRING: |
683 | case DBUS_TYPE_OBJECT_PATH: | |
9af5078b | 684 | case DBUS_TYPE_SIGNATURE: |
033b73e2 MA |
685 | { |
686 | char *val; | |
687 | dbus_message_iter_get_basic (iter, &val); | |
87cf1a39 | 688 | XD_DEBUG_MESSAGE ("%c %s", dtype, val); |
033b73e2 MA |
689 | return build_string (val); |
690 | } | |
87cf1a39 | 691 | |
033b73e2 MA |
692 | case DBUS_TYPE_ARRAY: |
693 | case DBUS_TYPE_VARIANT: | |
694 | case DBUS_TYPE_STRUCT: | |
695 | case DBUS_TYPE_DICT_ENTRY: | |
696 | { | |
697 | Lisp_Object result; | |
698 | struct gcpro gcpro1; | |
033b73e2 MA |
699 | DBusMessageIter subiter; |
700 | int subtype; | |
fa8e045a MA |
701 | result = Qnil; |
702 | GCPRO1 (result); | |
033b73e2 MA |
703 | dbus_message_iter_recurse (iter, &subiter); |
704 | while ((subtype = dbus_message_iter_get_arg_type (&subiter)) | |
705 | != DBUS_TYPE_INVALID) | |
706 | { | |
707 | result = Fcons (xd_retrieve_arg (subtype, &subiter), result); | |
708 | dbus_message_iter_next (&subiter); | |
709 | } | |
5125905e | 710 | XD_DEBUG_MESSAGE ("%c %s", dtype, SDATA (format2 ("%s", result, Qnil))); |
033b73e2 MA |
711 | RETURN_UNGCPRO (Fnreverse (result)); |
712 | } | |
87cf1a39 | 713 | |
033b73e2 | 714 | default: |
87cf1a39 | 715 | XD_DEBUG_MESSAGE ("DBusType '%c' not supported", dtype); |
033b73e2 MA |
716 | return Qnil; |
717 | } | |
718 | } | |
719 | ||
0c372655 MA |
720 | /* Initialize D-Bus connection. BUS is either a Lisp symbol, :system |
721 | or :session, or a string denoting the bus address. It tells which | |
722 | D-Bus to initialize. If RAISE_ERROR is non-zero, signal an error | |
723 | when the connection cannot be initialized. */ | |
78c38319 | 724 | static DBusConnection * |
2536a4b7 | 725 | xd_initialize (Lisp_Object bus, int raise_error) |
033b73e2 MA |
726 | { |
727 | DBusConnection *connection; | |
728 | DBusError derror; | |
729 | ||
730 | /* Parameter check. */ | |
0c372655 MA |
731 | if (!STRINGP (bus)) |
732 | { | |
733 | CHECK_SYMBOL (bus); | |
734 | if (!(EQ (bus, QCdbus_system_bus) || EQ (bus, QCdbus_session_bus))) | |
735 | { | |
736 | if (raise_error) | |
737 | XD_SIGNAL2 (build_string ("Wrong bus name"), bus); | |
738 | else | |
739 | return NULL; | |
740 | } | |
033b73e2 | 741 | |
0c372655 MA |
742 | /* We do not want to have an autolaunch for the session bus. */ |
743 | if (EQ (bus, QCdbus_session_bus) | |
744 | && getenv ("DBUS_SESSION_BUS_ADDRESS") == NULL) | |
745 | { | |
746 | if (raise_error) | |
747 | XD_SIGNAL2 (build_string ("No connection to bus"), bus); | |
748 | else | |
749 | return NULL; | |
750 | } | |
751 | } | |
3f56d3c6 | 752 | |
033b73e2 MA |
753 | /* Open a connection to the bus. */ |
754 | dbus_error_init (&derror); | |
755 | ||
0c372655 MA |
756 | if (STRINGP (bus)) |
757 | connection = dbus_connection_open (SDATA (bus), &derror); | |
033b73e2 | 758 | else |
0c372655 MA |
759 | if (EQ (bus, QCdbus_system_bus)) |
760 | connection = dbus_bus_get (DBUS_BUS_SYSTEM, &derror); | |
761 | else | |
762 | connection = dbus_bus_get (DBUS_BUS_SESSION, &derror); | |
033b73e2 MA |
763 | |
764 | if (dbus_error_is_set (&derror)) | |
0c372655 MA |
765 | { |
766 | if (raise_error) | |
767 | XD_ERROR (derror); | |
768 | else | |
769 | connection = NULL; | |
770 | } | |
771 | ||
772 | /* If it is not the system or session bus, we must register | |
773 | ourselves. Otherwise, we have called dbus_bus_get, which has | |
774 | configured us to exit if the connection closes - we undo this | |
775 | setting. */ | |
776 | if (connection != NULL) | |
777 | { | |
778 | if (STRINGP (bus)) | |
779 | dbus_bus_register (connection, &derror); | |
780 | else | |
781 | dbus_connection_set_exit_on_disconnect (connection, FALSE); | |
782 | } | |
783 | ||
784 | if (dbus_error_is_set (&derror)) | |
785 | { | |
786 | if (raise_error) | |
787 | XD_ERROR (derror); | |
788 | else | |
789 | connection = NULL; | |
790 | } | |
033b73e2 | 791 | |
de06a2dd | 792 | if (connection == NULL && raise_error) |
3f56d3c6 | 793 | XD_SIGNAL2 (build_string ("No connection to bus"), bus); |
033b73e2 | 794 | |
c1d5ce94 MA |
795 | /* Cleanup. */ |
796 | dbus_error_free (&derror); | |
797 | ||
033b73e2 MA |
798 | /* Return the result. */ |
799 | return connection; | |
800 | } | |
801 | ||
3fad2ad2 | 802 | /* Return the file descriptor for WATCH, -1 if not found. */ |
3fad2ad2 J |
803 | static int |
804 | xd_find_watch_fd (DBusWatch *watch) | |
058ed861 | 805 | { |
eb4c6ace | 806 | #if HAVE_DBUS_WATCH_GET_UNIX_FD |
3fad2ad2 J |
807 | /* TODO: Reverse these on Win32, which prefers the opposite. */ |
808 | int fd = dbus_watch_get_unix_fd (watch); | |
809 | if (fd == -1) | |
810 | fd = dbus_watch_get_socket (watch); | |
3f56d3c6 | 811 | #else |
3fad2ad2 | 812 | int fd = dbus_watch_get_fd (watch); |
3f56d3c6 | 813 | #endif |
3fad2ad2 J |
814 | return fd; |
815 | } | |
3f56d3c6 | 816 | |
08609ffd MA |
817 | /* Prototype. */ |
818 | static void | |
819 | xd_read_queued_messages (int fd, void *data, int for_read); | |
058ed861 | 820 | |
3fad2ad2 | 821 | /* Start monitoring WATCH for possible I/O. */ |
3fad2ad2 J |
822 | static dbus_bool_t |
823 | xd_add_watch (DBusWatch *watch, void *data) | |
824 | { | |
825 | unsigned int flags = dbus_watch_get_flags (watch); | |
826 | int fd = xd_find_watch_fd (watch); | |
827 | ||
828 | XD_DEBUG_MESSAGE ("fd %d, write %d, enabled %d", | |
829 | fd, flags & DBUS_WATCH_WRITABLE, | |
830 | dbus_watch_get_enabled (watch)); | |
831 | ||
832 | if (fd == -1) | |
833 | return FALSE; | |
834 | ||
835 | if (dbus_watch_get_enabled (watch)) | |
836 | { | |
837 | if (flags & DBUS_WATCH_WRITABLE) | |
08609ffd | 838 | add_write_fd (fd, xd_read_queued_messages, data); |
3fad2ad2 | 839 | if (flags & DBUS_WATCH_READABLE) |
08609ffd | 840 | add_read_fd (fd, xd_read_queued_messages, data); |
3fad2ad2 | 841 | } |
058ed861 MA |
842 | return TRUE; |
843 | } | |
844 | ||
3fad2ad2 J |
845 | /* Stop monitoring WATCH for possible I/O. |
846 | DATA is the used bus, either a string or QCdbus_system_bus or | |
0c372655 | 847 | QCdbus_session_bus. */ |
3fad2ad2 | 848 | static void |
971de7fb | 849 | xd_remove_watch (DBusWatch *watch, void *data) |
058ed861 | 850 | { |
3fad2ad2 J |
851 | unsigned int flags = dbus_watch_get_flags (watch); |
852 | int fd = xd_find_watch_fd (watch); | |
3f56d3c6 | 853 | |
3fad2ad2 J |
854 | XD_DEBUG_MESSAGE ("fd %d", fd); |
855 | ||
08609ffd MA |
856 | if (fd == -1) |
857 | return; | |
777013f2 | 858 | |
3fad2ad2 J |
859 | /* Unset session environment. */ |
860 | if (data != NULL && data == (void*) XHASH (QCdbus_session_bus)) | |
861 | { | |
862 | XD_DEBUG_MESSAGE ("unsetenv DBUS_SESSION_BUS_ADDRESS"); | |
863 | unsetenv ("DBUS_SESSION_BUS_ADDRESS"); | |
058ed861 MA |
864 | } |
865 | ||
3fad2ad2 J |
866 | if (flags & DBUS_WATCH_WRITABLE) |
867 | delete_write_fd (fd); | |
868 | if (flags & DBUS_WATCH_READABLE) | |
869 | delete_read_fd (fd); | |
870 | } | |
871 | ||
872 | /* Toggle monitoring WATCH for possible I/O. */ | |
3fad2ad2 J |
873 | static void |
874 | xd_toggle_watch (DBusWatch *watch, void *data) | |
875 | { | |
876 | if (dbus_watch_get_enabled (watch)) | |
877 | xd_add_watch (watch, data); | |
878 | else | |
879 | xd_remove_watch (watch, data); | |
058ed861 MA |
880 | } |
881 | ||
882 | DEFUN ("dbus-init-bus", Fdbus_init_bus, Sdbus_init_bus, 1, 1, 0, | |
0c372655 | 883 | doc: /* Initialize connection to D-Bus BUS. */) |
5842a27b | 884 | (Lisp_Object bus) |
058ed861 MA |
885 | { |
886 | DBusConnection *connection; | |
887 | ||
058ed861 | 888 | /* Open a connection to the bus. */ |
2536a4b7 | 889 | connection = xd_initialize (bus, TRUE); |
058ed861 | 890 | |
777013f2 MA |
891 | /* Add the watch functions. We pass also the bus as data, in order |
892 | to distinguish between the busses in xd_remove_watch. */ | |
058ed861 MA |
893 | if (!dbus_connection_set_watch_functions (connection, |
894 | xd_add_watch, | |
895 | xd_remove_watch, | |
3fad2ad2 J |
896 | xd_toggle_watch, |
897 | (void*) XHASH (bus), NULL)) | |
058ed861 MA |
898 | XD_SIGNAL1 (build_string ("Cannot add watch functions")); |
899 | ||
0c372655 MA |
900 | /* Add bus to list of registered buses. */ |
901 | Vdbus_registered_buses = Fcons (bus, Vdbus_registered_buses); | |
902 | ||
a79b0f28 MA |
903 | /* We do not want to abort. */ |
904 | putenv ("DBUS_FATAL_WARNINGS=0"); | |
905 | ||
0c372655 MA |
906 | /* Return. */ |
907 | return Qnil; | |
908 | } | |
909 | ||
910 | DEFUN ("dbus-close-bus", Fdbus_close_bus, Sdbus_close_bus, 1, 1, 0, | |
911 | doc: /* Close connection to D-Bus BUS. */) | |
912 | (Lisp_Object bus) | |
913 | { | |
914 | DBusConnection *connection; | |
915 | ||
916 | /* Open a connection to the bus. */ | |
917 | connection = xd_initialize (bus, TRUE); | |
918 | ||
919 | /* Decrement reference count to the bus. */ | |
920 | dbus_connection_unref (connection); | |
921 | ||
922 | /* Remove bus from list of registered buses. */ | |
923 | Vdbus_registered_buses = Fdelete (bus, Vdbus_registered_buses); | |
924 | ||
058ed861 MA |
925 | /* Return. */ |
926 | return Qnil; | |
927 | } | |
928 | ||
033b73e2 MA |
929 | DEFUN ("dbus-get-unique-name", Fdbus_get_unique_name, Sdbus_get_unique_name, |
930 | 1, 1, 0, | |
5125905e | 931 | doc: /* Return the unique name of Emacs registered at D-Bus BUS. */) |
5842a27b | 932 | (Lisp_Object bus) |
033b73e2 MA |
933 | { |
934 | DBusConnection *connection; | |
48f7d213 | 935 | const char *name; |
033b73e2 | 936 | |
033b73e2 | 937 | /* Open a connection to the bus. */ |
2536a4b7 | 938 | connection = xd_initialize (bus, TRUE); |
033b73e2 MA |
939 | |
940 | /* Request the name. */ | |
48f7d213 | 941 | name = dbus_bus_get_unique_name (connection); |
033b73e2 | 942 | if (name == NULL) |
1dae9197 | 943 | XD_SIGNAL1 (build_string ("No unique name available")); |
033b73e2 MA |
944 | |
945 | /* Return. */ | |
946 | return build_string (name); | |
947 | } | |
948 | ||
949 | DEFUN ("dbus-call-method", Fdbus_call_method, Sdbus_call_method, 5, MANY, 0, | |
950 | doc: /* Call METHOD on the D-Bus BUS. | |
951 | ||
0c372655 MA |
952 | BUS is either a Lisp symbol, `:system' or `:session', or a string |
953 | denoting the bus address. | |
033b73e2 MA |
954 | |
955 | SERVICE is the D-Bus service name to be used. PATH is the D-Bus | |
956 | object path SERVICE is registered at. INTERFACE is an interface | |
957 | offered by SERVICE. It must provide METHOD. | |
958 | ||
90b3fc84 | 959 | If the parameter `:timeout' is given, the following integer TIMEOUT |
f04bb9b2 | 960 | specifies the maximum number of milliseconds the method call must |
1574224c | 961 | return. The default value is 25,000. If the method call doesn't |
48f7d213 | 962 | return in time, a D-Bus error is raised. |
90b3fc84 | 963 | |
033b73e2 MA |
964 | All other arguments ARGS are passed to METHOD as arguments. They are |
965 | converted into D-Bus types via the following rules: | |
966 | ||
967 | t and nil => DBUS_TYPE_BOOLEAN | |
968 | number => DBUS_TYPE_UINT32 | |
969 | integer => DBUS_TYPE_INT32 | |
970 | float => DBUS_TYPE_DOUBLE | |
971 | string => DBUS_TYPE_STRING | |
87cf1a39 | 972 | list => DBUS_TYPE_ARRAY |
033b73e2 | 973 | |
87cf1a39 MA |
974 | All arguments can be preceded by a type symbol. For details about |
975 | type symbols, see Info node `(dbus)Type Conversion'. | |
033b73e2 MA |
976 | |
977 | `dbus-call-method' returns the resulting values of METHOD as a list of | |
978 | Lisp objects. The type conversion happens the other direction as for | |
87cf1a39 MA |
979 | input arguments. It follows the mapping rules: |
980 | ||
981 | DBUS_TYPE_BOOLEAN => t or nil | |
982 | DBUS_TYPE_BYTE => number | |
983 | DBUS_TYPE_UINT16 => number | |
984 | DBUS_TYPE_INT16 => integer | |
9af5078b MA |
985 | DBUS_TYPE_UINT32 => number or float |
986 | DBUS_TYPE_INT32 => integer or float | |
987 | DBUS_TYPE_UINT64 => number or float | |
988 | DBUS_TYPE_INT64 => integer or float | |
87cf1a39 MA |
989 | DBUS_TYPE_DOUBLE => float |
990 | DBUS_TYPE_STRING => string | |
991 | DBUS_TYPE_OBJECT_PATH => string | |
992 | DBUS_TYPE_SIGNATURE => string | |
993 | DBUS_TYPE_ARRAY => list | |
994 | DBUS_TYPE_VARIANT => list | |
995 | DBUS_TYPE_STRUCT => list | |
996 | DBUS_TYPE_DICT_ENTRY => list | |
997 | ||
998 | Example: | |
033b73e2 MA |
999 | |
1000 | \(dbus-call-method | |
52da95fa MA |
1001 | :session "org.gnome.seahorse" "/org/gnome/seahorse/keys/openpgp" |
1002 | "org.gnome.seahorse.Keys" "GetKeyField" | |
033b73e2 MA |
1003 | "openpgp:657984B8C7A966DD" "simple-name") |
1004 | ||
1005 | => (t ("Philip R. Zimmermann")) | |
1006 | ||
1007 | If the result of the METHOD call is just one value, the converted Lisp | |
1008 | object is returned instead of a list containing this single Lisp object. | |
1009 | ||
1010 | \(dbus-call-method | |
52da95fa MA |
1011 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/devices/computer" |
1012 | "org.freedesktop.Hal.Device" "GetPropertyString" | |
033b73e2 MA |
1013 | "system.kernel.machine") |
1014 | ||
1015 | => "i686" | |
1016 | ||
edd9ab1e | 1017 | usage: (dbus-call-method BUS SERVICE PATH INTERFACE METHOD &optional :timeout TIMEOUT &rest ARGS) */) |
5842a27b | 1018 | (int nargs, register Lisp_Object *args) |
033b73e2 | 1019 | { |
52da95fa | 1020 | Lisp_Object bus, service, path, interface, method; |
033b73e2 MA |
1021 | Lisp_Object result; |
1022 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; | |
1023 | DBusConnection *connection; | |
1024 | DBusMessage *dmessage; | |
1025 | DBusMessage *reply; | |
1026 | DBusMessageIter iter; | |
1027 | DBusError derror; | |
eb7c7bf5 | 1028 | unsigned int dtype; |
90b3fc84 MA |
1029 | int timeout = -1; |
1030 | int i = 5; | |
87cf1a39 | 1031 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
033b73e2 MA |
1032 | |
1033 | /* Check parameters. */ | |
1034 | bus = args[0]; | |
52da95fa MA |
1035 | service = args[1]; |
1036 | path = args[2]; | |
1037 | interface = args[3]; | |
1038 | method = args[4]; | |
033b73e2 | 1039 | |
033b73e2 MA |
1040 | CHECK_STRING (service); |
1041 | CHECK_STRING (path); | |
1042 | CHECK_STRING (interface); | |
52da95fa MA |
1043 | CHECK_STRING (method); |
1044 | GCPRO5 (bus, service, path, interface, method); | |
033b73e2 MA |
1045 | |
1046 | XD_DEBUG_MESSAGE ("%s %s %s %s", | |
033b73e2 MA |
1047 | SDATA (service), |
1048 | SDATA (path), | |
52da95fa MA |
1049 | SDATA (interface), |
1050 | SDATA (method)); | |
033b73e2 MA |
1051 | |
1052 | /* Open a connection to the bus. */ | |
2536a4b7 | 1053 | connection = xd_initialize (bus, TRUE); |
033b73e2 MA |
1054 | |
1055 | /* Create the message. */ | |
5125905e MA |
1056 | dmessage = dbus_message_new_method_call (SDATA (service), |
1057 | SDATA (path), | |
1058 | SDATA (interface), | |
1059 | SDATA (method)); | |
90b3fc84 | 1060 | UNGCPRO; |
033b73e2 | 1061 | if (dmessage == NULL) |
1dae9197 | 1062 | XD_SIGNAL1 (build_string ("Unable to create a new message")); |
90b3fc84 MA |
1063 | |
1064 | /* Check for timeout parameter. */ | |
1065 | if ((i+2 <= nargs) && (EQ ((args[i]), QCdbus_timeout))) | |
033b73e2 | 1066 | { |
90b3fc84 MA |
1067 | CHECK_NATNUM (args[i+1]); |
1068 | timeout = XUINT (args[i+1]); | |
1069 | i = i+2; | |
033b73e2 MA |
1070 | } |
1071 | ||
54371585 MA |
1072 | /* Initialize parameter list of message. */ |
1073 | dbus_message_iter_init_append (dmessage, &iter); | |
1074 | ||
033b73e2 | 1075 | /* Append parameters to the message. */ |
90b3fc84 | 1076 | for (; i < nargs; ++i) |
033b73e2 | 1077 | { |
87cf1a39 MA |
1078 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
1079 | if (XD_DBUS_TYPE_P (args[i])) | |
8c7a4ac5 MA |
1080 | { |
1081 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1082 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); | |
1083 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4, | |
1084 | SDATA (format2 ("%s", args[i], Qnil)), | |
1085 | SDATA (format2 ("%s", args[i+1], Qnil))); | |
1086 | ++i; | |
1087 | } | |
1088 | else | |
1089 | { | |
1090 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1091 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-4, | |
1092 | SDATA (format2 ("%s", args[i], Qnil))); | |
1093 | } | |
033b73e2 | 1094 | |
abe136ee | 1095 | /* Check for valid signature. We use DBUS_TYPE_INVALID as |
87cf1a39 MA |
1096 | indication that there is no parent type. */ |
1097 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
1098 | ||
54371585 | 1099 | xd_append_arg (dtype, args[i], &iter); |
033b73e2 MA |
1100 | } |
1101 | ||
1102 | /* Send the message. */ | |
1103 | dbus_error_init (&derror); | |
1104 | reply = dbus_connection_send_with_reply_and_block (connection, | |
1105 | dmessage, | |
90b3fc84 | 1106 | timeout, |
033b73e2 MA |
1107 | &derror); |
1108 | ||
1109 | if (dbus_error_is_set (&derror)) | |
1110 | XD_ERROR (derror); | |
1111 | ||
1112 | if (reply == NULL) | |
1dae9197 | 1113 | XD_SIGNAL1 (build_string ("No reply")); |
033b73e2 MA |
1114 | |
1115 | XD_DEBUG_MESSAGE ("Message sent"); | |
1116 | ||
1117 | /* Collect the results. */ | |
1118 | result = Qnil; | |
1119 | GCPRO1 (result); | |
1120 | ||
2c3a8b27 | 1121 | if (dbus_message_iter_init (reply, &iter)) |
033b73e2 | 1122 | { |
2c3a8b27 MH |
1123 | /* Loop over the parameters of the D-Bus reply message. Construct a |
1124 | Lisp list, which is returned by `dbus-call-method'. */ | |
8c7a4ac5 MA |
1125 | while ((dtype = dbus_message_iter_get_arg_type (&iter)) |
1126 | != DBUS_TYPE_INVALID) | |
2c3a8b27 MH |
1127 | { |
1128 | result = Fcons (xd_retrieve_arg (dtype, &iter), result); | |
1129 | dbus_message_iter_next (&iter); | |
1130 | } | |
033b73e2 | 1131 | } |
2c3a8b27 | 1132 | else |
033b73e2 | 1133 | { |
8c7a4ac5 | 1134 | /* No arguments: just return nil. */ |
033b73e2 MA |
1135 | } |
1136 | ||
1137 | /* Cleanup. */ | |
c1d5ce94 | 1138 | dbus_error_free (&derror); |
033b73e2 MA |
1139 | dbus_message_unref (dmessage); |
1140 | dbus_message_unref (reply); | |
1141 | ||
1142 | /* Return the result. If there is only one single Lisp object, | |
1143 | return it as-it-is, otherwise return the reversed list. */ | |
1144 | if (XUINT (Flength (result)) == 1) | |
5125905e | 1145 | RETURN_UNGCPRO (CAR_SAFE (result)); |
033b73e2 MA |
1146 | else |
1147 | RETURN_UNGCPRO (Fnreverse (result)); | |
1148 | } | |
1149 | ||
13ecc6dc MA |
1150 | DEFUN ("dbus-call-method-asynchronously", Fdbus_call_method_asynchronously, |
1151 | Sdbus_call_method_asynchronously, 6, MANY, 0, | |
1152 | doc: /* Call METHOD on the D-Bus BUS asynchronously. | |
1153 | ||
0c372655 MA |
1154 | BUS is either a Lisp symbol, `:system' or `:session', or a string |
1155 | denoting the bus address. | |
13ecc6dc MA |
1156 | |
1157 | SERVICE is the D-Bus service name to be used. PATH is the D-Bus | |
1158 | object path SERVICE is registered at. INTERFACE is an interface | |
1159 | offered by SERVICE. It must provide METHOD. | |
1160 | ||
1161 | HANDLER is a Lisp function, which is called when the corresponding | |
ca4f31ea MA |
1162 | return message has arrived. If HANDLER is nil, no return message will |
1163 | be expected. | |
13ecc6dc MA |
1164 | |
1165 | If the parameter `:timeout' is given, the following integer TIMEOUT | |
f04bb9b2 | 1166 | specifies the maximum number of milliseconds the method call must |
1574224c | 1167 | return. The default value is 25,000. If the method call doesn't |
13ecc6dc MA |
1168 | return in time, a D-Bus error is raised. |
1169 | ||
1170 | All other arguments ARGS are passed to METHOD as arguments. They are | |
1171 | converted into D-Bus types via the following rules: | |
1172 | ||
1173 | t and nil => DBUS_TYPE_BOOLEAN | |
1174 | number => DBUS_TYPE_UINT32 | |
1175 | integer => DBUS_TYPE_INT32 | |
1176 | float => DBUS_TYPE_DOUBLE | |
1177 | string => DBUS_TYPE_STRING | |
1178 | list => DBUS_TYPE_ARRAY | |
1179 | ||
1180 | All arguments can be preceded by a type symbol. For details about | |
1181 | type symbols, see Info node `(dbus)Type Conversion'. | |
1182 | ||
ca4f31ea | 1183 | Unless HANDLER is nil, the function returns a key into the hash table |
f04bb9b2 MA |
1184 | `dbus-registered-objects-table'. The corresponding entry in the hash |
1185 | table is removed, when the return message has been arrived, and | |
13ecc6dc MA |
1186 | HANDLER is called. |
1187 | ||
1188 | Example: | |
1189 | ||
1190 | \(dbus-call-method-asynchronously | |
1191 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/devices/computer" | |
1192 | "org.freedesktop.Hal.Device" "GetPropertyString" 'message | |
1193 | "system.kernel.machine") | |
1194 | ||
1195 | => (:system 2) | |
1196 | ||
1197 | -| i686 | |
1198 | ||
edd9ab1e | 1199 | usage: (dbus-call-method-asynchronously BUS SERVICE PATH INTERFACE METHOD HANDLER &optional :timeout TIMEOUT &rest ARGS) */) |
5842a27b | 1200 | (int nargs, register Lisp_Object *args) |
13ecc6dc MA |
1201 | { |
1202 | Lisp_Object bus, service, path, interface, method, handler; | |
1203 | Lisp_Object result; | |
1204 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6; | |
1205 | DBusConnection *connection; | |
1206 | DBusMessage *dmessage; | |
1207 | DBusMessageIter iter; | |
1208 | unsigned int dtype; | |
1209 | int timeout = -1; | |
1210 | int i = 6; | |
1211 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; | |
1212 | ||
1213 | /* Check parameters. */ | |
1214 | bus = args[0]; | |
1215 | service = args[1]; | |
1216 | path = args[2]; | |
1217 | interface = args[3]; | |
1218 | method = args[4]; | |
1219 | handler = args[5]; | |
1220 | ||
13ecc6dc MA |
1221 | CHECK_STRING (service); |
1222 | CHECK_STRING (path); | |
1223 | CHECK_STRING (interface); | |
1224 | CHECK_STRING (method); | |
ca4f31ea | 1225 | if (!NILP (handler) && !FUNCTIONP (handler)) |
13ecc6dc MA |
1226 | wrong_type_argument (intern ("functionp"), handler); |
1227 | GCPRO6 (bus, service, path, interface, method, handler); | |
1228 | ||
1229 | XD_DEBUG_MESSAGE ("%s %s %s %s", | |
1230 | SDATA (service), | |
1231 | SDATA (path), | |
1232 | SDATA (interface), | |
1233 | SDATA (method)); | |
1234 | ||
1235 | /* Open a connection to the bus. */ | |
2536a4b7 | 1236 | connection = xd_initialize (bus, TRUE); |
13ecc6dc MA |
1237 | |
1238 | /* Create the message. */ | |
1239 | dmessage = dbus_message_new_method_call (SDATA (service), | |
1240 | SDATA (path), | |
1241 | SDATA (interface), | |
1242 | SDATA (method)); | |
1243 | if (dmessage == NULL) | |
1dae9197 | 1244 | XD_SIGNAL1 (build_string ("Unable to create a new message")); |
13ecc6dc MA |
1245 | |
1246 | /* Check for timeout parameter. */ | |
1247 | if ((i+2 <= nargs) && (EQ ((args[i]), QCdbus_timeout))) | |
1248 | { | |
1249 | CHECK_NATNUM (args[i+1]); | |
1250 | timeout = XUINT (args[i+1]); | |
1251 | i = i+2; | |
1252 | } | |
1253 | ||
1254 | /* Initialize parameter list of message. */ | |
1255 | dbus_message_iter_init_append (dmessage, &iter); | |
1256 | ||
1257 | /* Append parameters to the message. */ | |
1258 | for (; i < nargs; ++i) | |
1259 | { | |
1260 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); | |
1261 | if (XD_DBUS_TYPE_P (args[i])) | |
1262 | { | |
1263 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1264 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); | |
1265 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4, | |
1266 | SDATA (format2 ("%s", args[i], Qnil)), | |
1267 | SDATA (format2 ("%s", args[i+1], Qnil))); | |
1268 | ++i; | |
1269 | } | |
1270 | else | |
1271 | { | |
1272 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1273 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-4, | |
1274 | SDATA (format2 ("%s", args[i], Qnil))); | |
1275 | } | |
1276 | ||
1277 | /* Check for valid signature. We use DBUS_TYPE_INVALID as | |
1278 | indication that there is no parent type. */ | |
1279 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
1280 | ||
1281 | xd_append_arg (dtype, args[i], &iter); | |
1282 | } | |
1283 | ||
ca4f31ea MA |
1284 | if (!NILP (handler)) |
1285 | { | |
1286 | /* Send the message. The message is just added to the outgoing | |
1287 | message queue. */ | |
1288 | if (!dbus_connection_send_with_reply (connection, dmessage, | |
1289 | NULL, timeout)) | |
1290 | XD_SIGNAL1 (build_string ("Cannot send message")); | |
13ecc6dc | 1291 | |
f04bb9b2 | 1292 | /* The result is the key in Vdbus_registered_objects_table. */ |
ca4f31ea | 1293 | result = (list2 (bus, make_number (dbus_message_get_serial (dmessage)))); |
13ecc6dc | 1294 | |
ca4f31ea | 1295 | /* Create a hash table entry. */ |
f04bb9b2 | 1296 | Fputhash (result, handler, Vdbus_registered_objects_table); |
ca4f31ea MA |
1297 | } |
1298 | else | |
1299 | { | |
1300 | /* Send the message. The message is just added to the outgoing | |
1301 | message queue. */ | |
1302 | if (!dbus_connection_send (connection, dmessage, NULL)) | |
1303 | XD_SIGNAL1 (build_string ("Cannot send message")); | |
13ecc6dc | 1304 | |
ca4f31ea MA |
1305 | result = Qnil; |
1306 | } | |
1307 | ||
ca4f31ea | 1308 | XD_DEBUG_MESSAGE ("Message sent"); |
13ecc6dc MA |
1309 | |
1310 | /* Cleanup. */ | |
1311 | dbus_message_unref (dmessage); | |
1312 | ||
1313 | /* Return the result. */ | |
1314 | RETURN_UNGCPRO (result); | |
1315 | } | |
1316 | ||
8c7a4ac5 MA |
1317 | DEFUN ("dbus-method-return-internal", Fdbus_method_return_internal, |
1318 | Sdbus_method_return_internal, | |
abe136ee | 1319 | 3, MANY, 0, |
8c7a4ac5 | 1320 | doc: /* Return for message SERIAL on the D-Bus BUS. |
abe136ee MA |
1321 | This is an internal function, it shall not be used outside dbus.el. |
1322 | ||
8c7a4ac5 | 1323 | usage: (dbus-method-return-internal BUS SERIAL SERVICE &rest ARGS) */) |
5842a27b | 1324 | (int nargs, register Lisp_Object *args) |
abe136ee MA |
1325 | { |
1326 | Lisp_Object bus, serial, service; | |
1327 | struct gcpro gcpro1, gcpro2, gcpro3; | |
1328 | DBusConnection *connection; | |
1329 | DBusMessage *dmessage; | |
1330 | DBusMessageIter iter; | |
1331 | unsigned int dtype; | |
1332 | int i; | |
1333 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; | |
1334 | ||
1335 | /* Check parameters. */ | |
1336 | bus = args[0]; | |
1337 | serial = args[1]; | |
1338 | service = args[2]; | |
1339 | ||
abe136ee MA |
1340 | CHECK_NUMBER (serial); |
1341 | CHECK_STRING (service); | |
1342 | GCPRO3 (bus, serial, service); | |
1343 | ||
603f0bf0 | 1344 | XD_DEBUG_MESSAGE ("%lu %s ", (unsigned long) XUINT (serial), SDATA (service)); |
abe136ee MA |
1345 | |
1346 | /* Open a connection to the bus. */ | |
2536a4b7 | 1347 | connection = xd_initialize (bus, TRUE); |
abe136ee MA |
1348 | |
1349 | /* Create the message. */ | |
1350 | dmessage = dbus_message_new (DBUS_MESSAGE_TYPE_METHOD_RETURN); | |
1351 | if ((dmessage == NULL) | |
1352 | || (!dbus_message_set_reply_serial (dmessage, XUINT (serial))) | |
1353 | || (!dbus_message_set_destination (dmessage, SDATA (service)))) | |
1354 | { | |
1355 | UNGCPRO; | |
1dae9197 | 1356 | XD_SIGNAL1 (build_string ("Unable to create a return message")); |
abe136ee MA |
1357 | } |
1358 | ||
1359 | UNGCPRO; | |
1360 | ||
1361 | /* Initialize parameter list of message. */ | |
1362 | dbus_message_iter_init_append (dmessage, &iter); | |
1363 | ||
1364 | /* Append parameters to the message. */ | |
1365 | for (i = 3; i < nargs; ++i) | |
1366 | { | |
abe136ee MA |
1367 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
1368 | if (XD_DBUS_TYPE_P (args[i])) | |
8c7a4ac5 MA |
1369 | { |
1370 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1371 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); | |
1372 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-2, | |
1373 | SDATA (format2 ("%s", args[i], Qnil)), | |
1374 | SDATA (format2 ("%s", args[i+1], Qnil))); | |
1375 | ++i; | |
1376 | } | |
1377 | else | |
1378 | { | |
1379 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1380 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-2, | |
1381 | SDATA (format2 ("%s", args[i], Qnil))); | |
1382 | } | |
abe136ee MA |
1383 | |
1384 | /* Check for valid signature. We use DBUS_TYPE_INVALID as | |
1385 | indication that there is no parent type. */ | |
1386 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
1387 | ||
1388 | xd_append_arg (dtype, args[i], &iter); | |
1389 | } | |
1390 | ||
1391 | /* Send the message. The message is just added to the outgoing | |
1392 | message queue. */ | |
1393 | if (!dbus_connection_send (connection, dmessage, NULL)) | |
1dae9197 | 1394 | XD_SIGNAL1 (build_string ("Cannot send message")); |
abe136ee | 1395 | |
abe136ee MA |
1396 | XD_DEBUG_MESSAGE ("Message sent"); |
1397 | ||
1398 | /* Cleanup. */ | |
1399 | dbus_message_unref (dmessage); | |
1400 | ||
1401 | /* Return. */ | |
1402 | return Qt; | |
1403 | } | |
1404 | ||
13ecc6dc MA |
1405 | DEFUN ("dbus-method-error-internal", Fdbus_method_error_internal, |
1406 | Sdbus_method_error_internal, | |
1407 | 3, MANY, 0, | |
1408 | doc: /* Return error message for message SERIAL on the D-Bus BUS. | |
1409 | This is an internal function, it shall not be used outside dbus.el. | |
1410 | ||
1411 | usage: (dbus-method-error-internal BUS SERIAL SERVICE &rest ARGS) */) | |
5842a27b | 1412 | (int nargs, register Lisp_Object *args) |
13ecc6dc MA |
1413 | { |
1414 | Lisp_Object bus, serial, service; | |
1415 | struct gcpro gcpro1, gcpro2, gcpro3; | |
1416 | DBusConnection *connection; | |
1417 | DBusMessage *dmessage; | |
1418 | DBusMessageIter iter; | |
1419 | unsigned int dtype; | |
1420 | int i; | |
1421 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; | |
1422 | ||
1423 | /* Check parameters. */ | |
1424 | bus = args[0]; | |
1425 | serial = args[1]; | |
1426 | service = args[2]; | |
1427 | ||
13ecc6dc MA |
1428 | CHECK_NUMBER (serial); |
1429 | CHECK_STRING (service); | |
1430 | GCPRO3 (bus, serial, service); | |
1431 | ||
603f0bf0 | 1432 | XD_DEBUG_MESSAGE ("%lu %s ", (unsigned long) XUINT (serial), SDATA (service)); |
13ecc6dc MA |
1433 | |
1434 | /* Open a connection to the bus. */ | |
2536a4b7 | 1435 | connection = xd_initialize (bus, TRUE); |
13ecc6dc MA |
1436 | |
1437 | /* Create the message. */ | |
1438 | dmessage = dbus_message_new (DBUS_MESSAGE_TYPE_ERROR); | |
1439 | if ((dmessage == NULL) | |
1440 | || (!dbus_message_set_error_name (dmessage, DBUS_ERROR_FAILED)) | |
1441 | || (!dbus_message_set_reply_serial (dmessage, XUINT (serial))) | |
1442 | || (!dbus_message_set_destination (dmessage, SDATA (service)))) | |
1443 | { | |
1444 | UNGCPRO; | |
1dae9197 | 1445 | XD_SIGNAL1 (build_string ("Unable to create a error message")); |
13ecc6dc MA |
1446 | } |
1447 | ||
1448 | UNGCPRO; | |
1449 | ||
1450 | /* Initialize parameter list of message. */ | |
1451 | dbus_message_iter_init_append (dmessage, &iter); | |
1452 | ||
1453 | /* Append parameters to the message. */ | |
1454 | for (i = 3; i < nargs; ++i) | |
1455 | { | |
1456 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); | |
1457 | if (XD_DBUS_TYPE_P (args[i])) | |
1458 | { | |
1459 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1460 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); | |
1461 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-2, | |
1462 | SDATA (format2 ("%s", args[i], Qnil)), | |
1463 | SDATA (format2 ("%s", args[i+1], Qnil))); | |
1464 | ++i; | |
1465 | } | |
1466 | else | |
1467 | { | |
1468 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1469 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-2, | |
1470 | SDATA (format2 ("%s", args[i], Qnil))); | |
1471 | } | |
1472 | ||
1473 | /* Check for valid signature. We use DBUS_TYPE_INVALID as | |
1474 | indication that there is no parent type. */ | |
1475 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
1476 | ||
1477 | xd_append_arg (dtype, args[i], &iter); | |
1478 | } | |
1479 | ||
1480 | /* Send the message. The message is just added to the outgoing | |
1481 | message queue. */ | |
1482 | if (!dbus_connection_send (connection, dmessage, NULL)) | |
1dae9197 | 1483 | XD_SIGNAL1 (build_string ("Cannot send message")); |
13ecc6dc | 1484 | |
13ecc6dc MA |
1485 | XD_DEBUG_MESSAGE ("Message sent"); |
1486 | ||
1487 | /* Cleanup. */ | |
1488 | dbus_message_unref (dmessage); | |
1489 | ||
1490 | /* Return. */ | |
1491 | return Qt; | |
1492 | } | |
1493 | ||
033b73e2 MA |
1494 | DEFUN ("dbus-send-signal", Fdbus_send_signal, Sdbus_send_signal, 5, MANY, 0, |
1495 | doc: /* Send signal SIGNAL on the D-Bus BUS. | |
1496 | ||
0c372655 MA |
1497 | BUS is either a Lisp symbol, `:system' or `:session', or a string |
1498 | denoting the bus address. | |
033b73e2 MA |
1499 | |
1500 | SERVICE is the D-Bus service name SIGNAL is sent from. PATH is the | |
1501 | D-Bus object path SERVICE is registered at. INTERFACE is an interface | |
1502 | offered by SERVICE. It must provide signal SIGNAL. | |
1503 | ||
1504 | All other arguments ARGS are passed to SIGNAL as arguments. They are | |
1505 | converted into D-Bus types via the following rules: | |
1506 | ||
1507 | t and nil => DBUS_TYPE_BOOLEAN | |
1508 | number => DBUS_TYPE_UINT32 | |
1509 | integer => DBUS_TYPE_INT32 | |
1510 | float => DBUS_TYPE_DOUBLE | |
1511 | string => DBUS_TYPE_STRING | |
87cf1a39 | 1512 | list => DBUS_TYPE_ARRAY |
033b73e2 | 1513 | |
87cf1a39 MA |
1514 | All arguments can be preceded by a type symbol. For details about |
1515 | type symbols, see Info node `(dbus)Type Conversion'. | |
033b73e2 MA |
1516 | |
1517 | Example: | |
1518 | ||
1519 | \(dbus-send-signal | |
52da95fa MA |
1520 | :session "org.gnu.Emacs" "/org/gnu/Emacs" |
1521 | "org.gnu.Emacs.FileManager" "FileModified" "/home/albinus/.emacs") | |
033b73e2 | 1522 | |
52da95fa | 1523 | usage: (dbus-send-signal BUS SERVICE PATH INTERFACE SIGNAL &rest ARGS) */) |
5842a27b | 1524 | (int nargs, register Lisp_Object *args) |
033b73e2 | 1525 | { |
52da95fa | 1526 | Lisp_Object bus, service, path, interface, signal; |
033b73e2 MA |
1527 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
1528 | DBusConnection *connection; | |
1529 | DBusMessage *dmessage; | |
54371585 | 1530 | DBusMessageIter iter; |
eb7c7bf5 | 1531 | unsigned int dtype; |
033b73e2 | 1532 | int i; |
87cf1a39 | 1533 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
033b73e2 MA |
1534 | |
1535 | /* Check parameters. */ | |
1536 | bus = args[0]; | |
52da95fa MA |
1537 | service = args[1]; |
1538 | path = args[2]; | |
1539 | interface = args[3]; | |
1540 | signal = args[4]; | |
033b73e2 | 1541 | |
033b73e2 MA |
1542 | CHECK_STRING (service); |
1543 | CHECK_STRING (path); | |
1544 | CHECK_STRING (interface); | |
52da95fa MA |
1545 | CHECK_STRING (signal); |
1546 | GCPRO5 (bus, service, path, interface, signal); | |
033b73e2 MA |
1547 | |
1548 | XD_DEBUG_MESSAGE ("%s %s %s %s", | |
033b73e2 MA |
1549 | SDATA (service), |
1550 | SDATA (path), | |
52da95fa MA |
1551 | SDATA (interface), |
1552 | SDATA (signal)); | |
033b73e2 MA |
1553 | |
1554 | /* Open a connection to the bus. */ | |
2536a4b7 | 1555 | connection = xd_initialize (bus, TRUE); |
033b73e2 MA |
1556 | |
1557 | /* Create the message. */ | |
5125905e MA |
1558 | dmessage = dbus_message_new_signal (SDATA (path), |
1559 | SDATA (interface), | |
1560 | SDATA (signal)); | |
033b73e2 | 1561 | UNGCPRO; |
90b3fc84 | 1562 | if (dmessage == NULL) |
1dae9197 | 1563 | XD_SIGNAL1 (build_string ("Unable to create a new message")); |
033b73e2 | 1564 | |
54371585 MA |
1565 | /* Initialize parameter list of message. */ |
1566 | dbus_message_iter_init_append (dmessage, &iter); | |
1567 | ||
033b73e2 MA |
1568 | /* Append parameters to the message. */ |
1569 | for (i = 5; i < nargs; ++i) | |
1570 | { | |
87cf1a39 MA |
1571 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
1572 | if (XD_DBUS_TYPE_P (args[i])) | |
8c7a4ac5 MA |
1573 | { |
1574 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1575 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); | |
1576 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4, | |
1577 | SDATA (format2 ("%s", args[i], Qnil)), | |
1578 | SDATA (format2 ("%s", args[i+1], Qnil))); | |
1579 | ++i; | |
1580 | } | |
1581 | else | |
1582 | { | |
1583 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); | |
1584 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-4, | |
1585 | SDATA (format2 ("%s", args[i], Qnil))); | |
1586 | } | |
033b73e2 | 1587 | |
abe136ee | 1588 | /* Check for valid signature. We use DBUS_TYPE_INVALID as |
87cf1a39 MA |
1589 | indication that there is no parent type. */ |
1590 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); | |
1591 | ||
54371585 | 1592 | xd_append_arg (dtype, args[i], &iter); |
033b73e2 MA |
1593 | } |
1594 | ||
1595 | /* Send the message. The message is just added to the outgoing | |
1596 | message queue. */ | |
1597 | if (!dbus_connection_send (connection, dmessage, NULL)) | |
1dae9197 | 1598 | XD_SIGNAL1 (build_string ("Cannot send message")); |
033b73e2 | 1599 | |
033b73e2 MA |
1600 | XD_DEBUG_MESSAGE ("Signal sent"); |
1601 | ||
1602 | /* Cleanup. */ | |
1603 | dbus_message_unref (dmessage); | |
1604 | ||
1605 | /* Return. */ | |
1606 | return Qt; | |
1607 | } | |
1608 | ||
3fad2ad2 J |
1609 | /* Read one queued incoming message of the D-Bus BUS. |
1610 | BUS is either a Lisp symbol, :system or :session, or a string denoting | |
1611 | the bus address. */ | |
3fad2ad2 J |
1612 | static void |
1613 | xd_read_message_1 (DBusConnection *connection, Lisp_Object bus) | |
033b73e2 | 1614 | { |
a31d47c7 | 1615 | Lisp_Object args, key, value; |
033b73e2 | 1616 | struct gcpro gcpro1; |
15f16c1b | 1617 | struct input_event event; |
033b73e2 MA |
1618 | DBusMessage *dmessage; |
1619 | DBusMessageIter iter; | |
eb7c7bf5 | 1620 | unsigned int dtype; |
13ecc6dc | 1621 | int mtype, serial; |
a8e72f4f | 1622 | const char *uname, *path, *interface, *member; |
39abdd4a | 1623 | |
033b73e2 MA |
1624 | dmessage = dbus_connection_pop_message (connection); |
1625 | ||
1626 | /* Return if there is no queued message. */ | |
1627 | if (dmessage == NULL) | |
3fad2ad2 | 1628 | return; |
033b73e2 MA |
1629 | |
1630 | /* Collect the parameters. */ | |
a31d47c7 MA |
1631 | args = Qnil; |
1632 | GCPRO1 (args); | |
033b73e2 | 1633 | |
033b73e2 | 1634 | /* Loop over the resulting parameters. Construct a list. */ |
17bc8f94 | 1635 | if (dbus_message_iter_init (dmessage, &iter)) |
033b73e2 | 1636 | { |
17bc8f94 MA |
1637 | while ((dtype = dbus_message_iter_get_arg_type (&iter)) |
1638 | != DBUS_TYPE_INVALID) | |
1639 | { | |
1640 | args = Fcons (xd_retrieve_arg (dtype, &iter), args); | |
1641 | dbus_message_iter_next (&iter); | |
1642 | } | |
1643 | /* The arguments are stored in reverse order. Reorder them. */ | |
1644 | args = Fnreverse (args); | |
033b73e2 MA |
1645 | } |
1646 | ||
13ecc6dc MA |
1647 | /* Read message type, message serial, unique name, object path, |
1648 | interface and member from the message. */ | |
367ea173 MA |
1649 | mtype = dbus_message_get_type (dmessage); |
1650 | serial = | |
1651 | ((mtype == DBUS_MESSAGE_TYPE_METHOD_RETURN) | |
1652 | || (mtype == DBUS_MESSAGE_TYPE_ERROR)) | |
1653 | ? dbus_message_get_reply_serial (dmessage) | |
1654 | : dbus_message_get_serial (dmessage); | |
1655 | uname = dbus_message_get_sender (dmessage); | |
1656 | path = dbus_message_get_path (dmessage); | |
a8e72f4f | 1657 | interface = dbus_message_get_interface (dmessage); |
367ea173 | 1658 | member = dbus_message_get_member (dmessage); |
a8e72f4f | 1659 | |
13ecc6dc | 1660 | XD_DEBUG_MESSAGE ("Event received: %s %d %s %s %s %s %s", |
367ea173 MA |
1661 | (mtype == DBUS_MESSAGE_TYPE_INVALID) |
1662 | ? "DBUS_MESSAGE_TYPE_INVALID" | |
1663 | : (mtype == DBUS_MESSAGE_TYPE_METHOD_CALL) | |
1664 | ? "DBUS_MESSAGE_TYPE_METHOD_CALL" | |
1665 | : (mtype == DBUS_MESSAGE_TYPE_METHOD_RETURN) | |
1666 | ? "DBUS_MESSAGE_TYPE_METHOD_RETURN" | |
1667 | : (mtype == DBUS_MESSAGE_TYPE_ERROR) | |
1668 | ? "DBUS_MESSAGE_TYPE_ERROR" | |
1669 | : "DBUS_MESSAGE_TYPE_SIGNAL", | |
13ecc6dc | 1670 | serial, uname, path, interface, member, |
17bc8f94 MA |
1671 | SDATA (format2 ("%s", args, Qnil))); |
1672 | ||
367ea173 MA |
1673 | if ((mtype == DBUS_MESSAGE_TYPE_METHOD_RETURN) |
1674 | || (mtype == DBUS_MESSAGE_TYPE_ERROR)) | |
13ecc6dc MA |
1675 | { |
1676 | /* Search for a registered function of the message. */ | |
1677 | key = list2 (bus, make_number (serial)); | |
f04bb9b2 | 1678 | value = Fgethash (key, Vdbus_registered_objects_table, Qnil); |
13ecc6dc MA |
1679 | |
1680 | /* There shall be exactly one entry. Construct an event. */ | |
1681 | if (NILP (value)) | |
1682 | goto cleanup; | |
1683 | ||
1684 | /* Remove the entry. */ | |
f04bb9b2 | 1685 | Fremhash (key, Vdbus_registered_objects_table); |
13ecc6dc MA |
1686 | |
1687 | /* Construct an event. */ | |
1688 | EVENT_INIT (event); | |
1689 | event.kind = DBUS_EVENT; | |
1690 | event.frame_or_window = Qnil; | |
1691 | event.arg = Fcons (value, args); | |
1692 | } | |
a31d47c7 | 1693 | |
13ecc6dc | 1694 | else /* (mtype != DBUS_MESSAGE_TYPE_METHOD_RETURN) */ |
a31d47c7 | 1695 | { |
f04bb9b2 MA |
1696 | /* Vdbus_registered_objects_table requires non-nil interface and |
1697 | member. */ | |
13ecc6dc MA |
1698 | if ((interface == NULL) || (member == NULL)) |
1699 | goto cleanup; | |
1700 | ||
1701 | /* Search for a registered function of the message. */ | |
1702 | key = list3 (bus, build_string (interface), build_string (member)); | |
f04bb9b2 | 1703 | value = Fgethash (key, Vdbus_registered_objects_table, Qnil); |
13ecc6dc MA |
1704 | |
1705 | /* Loop over the registered functions. Construct an event. */ | |
1706 | while (!NILP (value)) | |
a31d47c7 | 1707 | { |
13ecc6dc MA |
1708 | key = CAR_SAFE (value); |
1709 | /* key has the structure (UNAME SERVICE PATH HANDLER). */ | |
1710 | if (((uname == NULL) | |
1711 | || (NILP (CAR_SAFE (key))) | |
1712 | || (strcmp (uname, SDATA (CAR_SAFE (key))) == 0)) | |
1713 | && ((path == NULL) | |
1714 | || (NILP (CAR_SAFE (CDR_SAFE (CDR_SAFE (key))))) | |
1715 | || (strcmp (path, | |
1716 | SDATA (CAR_SAFE (CDR_SAFE (CDR_SAFE (key))))) | |
1717 | == 0)) | |
1718 | && (!NILP (CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (key))))))) | |
1719 | { | |
1720 | EVENT_INIT (event); | |
1721 | event.kind = DBUS_EVENT; | |
1722 | event.frame_or_window = Qnil; | |
1723 | event.arg = Fcons (CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (key)))), | |
1724 | args); | |
1725 | break; | |
1726 | } | |
1727 | value = CDR_SAFE (value); | |
a31d47c7 | 1728 | } |
13ecc6dc MA |
1729 | |
1730 | if (NILP (value)) | |
1731 | goto cleanup; | |
a31d47c7 | 1732 | } |
033b73e2 | 1733 | |
13ecc6dc MA |
1734 | /* Add type, serial, uname, path, interface and member to the event. */ |
1735 | event.arg = Fcons ((member == NULL ? Qnil : build_string (member)), | |
1736 | event.arg); | |
1737 | event.arg = Fcons ((interface == NULL ? Qnil : build_string (interface)), | |
1738 | event.arg); | |
1739 | event.arg = Fcons ((path == NULL ? Qnil : build_string (path)), | |
1740 | event.arg); | |
1741 | event.arg = Fcons ((uname == NULL ? Qnil : build_string (uname)), | |
1742 | event.arg); | |
1743 | event.arg = Fcons (make_number (serial), event.arg); | |
1744 | event.arg = Fcons (make_number (mtype), event.arg); | |
1745 | ||
1746 | /* Add the bus symbol to the event. */ | |
1747 | event.arg = Fcons (bus, event.arg); | |
1748 | ||
1749 | /* Store it into the input event queue. */ | |
1750 | kbd_buffer_store_event (&event); | |
1751 | ||
1752 | XD_DEBUG_MESSAGE ("Event stored: %s", | |
1753 | SDATA (format2 ("%s", event.arg, Qnil))); | |
1754 | ||
c1d5ce94 | 1755 | /* Cleanup. */ |
a8e72f4f | 1756 | cleanup: |
033b73e2 | 1757 | dbus_message_unref (dmessage); |
c1d5ce94 | 1758 | |
3fad2ad2 J |
1759 | UNGCPRO; |
1760 | } | |
1761 | ||
1762 | /* Read queued incoming messages of the D-Bus BUS. | |
1763 | BUS is either a Lisp symbol, :system or :session, or a string denoting | |
1764 | the bus address. */ | |
3fad2ad2 J |
1765 | static Lisp_Object |
1766 | xd_read_message (Lisp_Object bus) | |
1767 | { | |
1768 | /* Open a connection to the bus. */ | |
1769 | DBusConnection *connection = xd_initialize (bus, TRUE); | |
1770 | ||
1771 | /* Non blocking read of the next available message. */ | |
1772 | dbus_connection_read_write (connection, 0); | |
1773 | ||
1774 | while (dbus_connection_get_dispatch_status (connection) | |
1775 | != DBUS_DISPATCH_COMPLETE) | |
1776 | xd_read_message_1 (connection, bus); | |
1777 | return Qnil; | |
033b73e2 MA |
1778 | } |
1779 | ||
08609ffd MA |
1780 | /* Callback called when something is ready to read or write. */ |
1781 | static void | |
1782 | xd_read_queued_messages (int fd, void *data, int for_read) | |
033b73e2 | 1783 | { |
0c372655 | 1784 | Lisp_Object busp = Vdbus_registered_buses; |
08609ffd | 1785 | Lisp_Object bus = Qnil; |
96faeb40 | 1786 | |
08609ffd MA |
1787 | /* Find bus related to fd. */ |
1788 | if (data != NULL) | |
1789 | while (!NILP (busp)) | |
1790 | { | |
1791 | if (data == (void*) XHASH (CAR_SAFE (busp))) | |
1792 | bus = CAR_SAFE (busp); | |
1793 | busp = CDR_SAFE (busp); | |
1794 | } | |
1795 | ||
1796 | if (NILP(bus)) | |
1797 | return; | |
1798 | ||
1799 | /* We ignore all Lisp errors during the call. */ | |
0c372655 | 1800 | xd_in_read_queued_messages = 1; |
08609ffd | 1801 | internal_catch (Qdbus_error, xd_read_message, bus); |
0c372655 | 1802 | xd_in_read_queued_messages = 0; |
033b73e2 MA |
1803 | } |
1804 | ||
1805 | DEFUN ("dbus-register-signal", Fdbus_register_signal, Sdbus_register_signal, | |
944cc4a8 | 1806 | 6, MANY, 0, |
033b73e2 MA |
1807 | doc: /* Register for signal SIGNAL on the D-Bus BUS. |
1808 | ||
0c372655 MA |
1809 | BUS is either a Lisp symbol, `:system' or `:session', or a string |
1810 | denoting the bus address. | |
033b73e2 | 1811 | |
39abdd4a MA |
1812 | SERVICE is the D-Bus service name used by the sending D-Bus object. |
1813 | It can be either a known name or the unique name of the D-Bus object | |
1814 | sending the signal. When SERVICE is nil, related signals from all | |
1815 | D-Bus objects shall be accepted. | |
033b73e2 | 1816 | |
39abdd4a MA |
1817 | PATH is the D-Bus object path SERVICE is registered. It can also be |
1818 | nil if the path name of incoming signals shall not be checked. | |
033b73e2 | 1819 | |
39abdd4a MA |
1820 | INTERFACE is an interface offered by SERVICE. It must provide SIGNAL. |
1821 | HANDLER is a Lisp function to be called when the signal is received. | |
944cc4a8 MA |
1822 | It must accept as arguments the values SIGNAL is sending. |
1823 | ||
1824 | All other arguments ARGS, if specified, must be strings. They stand | |
1825 | for the respective arguments of the signal in their order, and are | |
1826 | used for filtering as well. A nil argument might be used to preserve | |
1827 | the order. | |
1828 | ||
1829 | INTERFACE, SIGNAL and HANDLER must not be nil. Example: | |
033b73e2 MA |
1830 | |
1831 | \(defun my-signal-handler (device) | |
1832 | (message "Device %s added" device)) | |
1833 | ||
1834 | \(dbus-register-signal | |
52da95fa MA |
1835 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/Manager" |
1836 | "org.freedesktop.Hal.Manager" "DeviceAdded" 'my-signal-handler) | |
033b73e2 | 1837 | |
f5306ca3 MA |
1838 | => ((:system "org.freedesktop.Hal.Manager" "DeviceAdded") |
1839 | ("org.freedesktop.Hal" "/org/freedesktop/Hal/Manager" my-signal-handler)) | |
033b73e2 MA |
1840 | |
1841 | `dbus-register-signal' returns an object, which can be used in | |
944cc4a8 MA |
1842 | `dbus-unregister-object' for removing the registration. |
1843 | ||
1844 | usage: (dbus-register-signal BUS SERVICE PATH INTERFACE SIGNAL HANDLER &rest ARGS) */) | |
5842a27b | 1845 | (int nargs, register Lisp_Object *args) |
033b73e2 | 1846 | { |
944cc4a8 MA |
1847 | Lisp_Object bus, service, path, interface, signal, handler; |
1848 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6; | |
17bc8f94 | 1849 | Lisp_Object uname, key, key1, value; |
033b73e2 | 1850 | DBusConnection *connection; |
944cc4a8 | 1851 | int i; |
52da95fa | 1852 | char rule[DBUS_MAXIMUM_MATCH_RULE_LENGTH]; |
c0894fb9 | 1853 | char x[DBUS_MAXIMUM_MATCH_RULE_LENGTH]; |
39abdd4a | 1854 | DBusError derror; |
033b73e2 MA |
1855 | |
1856 | /* Check parameters. */ | |
944cc4a8 MA |
1857 | bus = args[0]; |
1858 | service = args[1]; | |
1859 | path = args[2]; | |
1860 | interface = args[3]; | |
1861 | signal = args[4]; | |
1862 | handler = args[5]; | |
1863 | ||
39abdd4a MA |
1864 | if (!NILP (service)) CHECK_STRING (service); |
1865 | if (!NILP (path)) CHECK_STRING (path); | |
033b73e2 | 1866 | CHECK_STRING (interface); |
52da95fa | 1867 | CHECK_STRING (signal); |
17bc8f94 MA |
1868 | if (!FUNCTIONP (handler)) |
1869 | wrong_type_argument (intern ("functionp"), handler); | |
944cc4a8 | 1870 | GCPRO6 (bus, service, path, interface, signal, handler); |
033b73e2 | 1871 | |
52da95fa MA |
1872 | /* Retrieve unique name of service. If service is a known name, we |
1873 | will register for the corresponding unique name, if any. Signals | |
1874 | are sent always with the unique name as sender. Note: the unique | |
1875 | name of "org.freedesktop.DBus" is that string itself. */ | |
5125905e MA |
1876 | if ((STRINGP (service)) |
1877 | && (SBYTES (service) > 0) | |
eb7c7bf5 MA |
1878 | && (strcmp (SDATA (service), DBUS_SERVICE_DBUS) != 0) |
1879 | && (strncmp (SDATA (service), ":", 1) != 0)) | |
f5306ca3 MA |
1880 | { |
1881 | uname = call2 (intern ("dbus-get-name-owner"), bus, service); | |
1882 | /* When there is no unique name, we mark it with an empty | |
1883 | string. */ | |
1884 | if (NILP (uname)) | |
fff4e459 | 1885 | uname = empty_unibyte_string; |
f5306ca3 | 1886 | } |
52da95fa | 1887 | else |
f5306ca3 | 1888 | uname = service; |
52da95fa | 1889 | |
f5306ca3 MA |
1890 | /* Create a matching rule if the unique name exists (when no |
1891 | wildcard). */ | |
5125905e | 1892 | if (NILP (uname) || (SBYTES (uname) > 0)) |
f5306ca3 MA |
1893 | { |
1894 | /* Open a connection to the bus. */ | |
2536a4b7 | 1895 | connection = xd_initialize (bus, TRUE); |
033b73e2 | 1896 | |
f5306ca3 MA |
1897 | /* Create a rule to receive related signals. */ |
1898 | sprintf (rule, | |
1899 | "type='signal',interface='%s',member='%s'", | |
1900 | SDATA (interface), | |
1901 | SDATA (signal)); | |
033b73e2 | 1902 | |
f5306ca3 MA |
1903 | /* Add unique name and path to the rule if they are non-nil. */ |
1904 | if (!NILP (uname)) | |
c0894fb9 MA |
1905 | { |
1906 | sprintf (x, ",sender='%s'", SDATA (uname)); | |
1907 | strcat (rule, x); | |
1908 | } | |
39abdd4a | 1909 | |
f5306ca3 | 1910 | if (!NILP (path)) |
c0894fb9 MA |
1911 | { |
1912 | sprintf (x, ",path='%s'", SDATA (path)); | |
1913 | strcat (rule, x); | |
1914 | } | |
39abdd4a | 1915 | |
944cc4a8 MA |
1916 | /* Add arguments to the rule if they are non-nil. */ |
1917 | for (i = 6; i < nargs; ++i) | |
1918 | if (!NILP (args[i])) | |
1919 | { | |
1920 | CHECK_STRING (args[i]); | |
c0894fb9 MA |
1921 | sprintf (x, ",arg%d='%s'", i-6, SDATA (args[i])); |
1922 | strcat (rule, x); | |
944cc4a8 MA |
1923 | } |
1924 | ||
f5306ca3 MA |
1925 | /* Add the rule to the bus. */ |
1926 | dbus_error_init (&derror); | |
1927 | dbus_bus_add_match (connection, rule, &derror); | |
1928 | if (dbus_error_is_set (&derror)) | |
944cc4a8 MA |
1929 | { |
1930 | UNGCPRO; | |
1931 | XD_ERROR (derror); | |
1932 | } | |
033b73e2 | 1933 | |
c1d5ce94 MA |
1934 | /* Cleanup. */ |
1935 | dbus_error_free (&derror); | |
1936 | ||
f5306ca3 MA |
1937 | XD_DEBUG_MESSAGE ("Matching rule \"%s\" created", rule); |
1938 | } | |
033b73e2 | 1939 | |
39abdd4a | 1940 | /* Create a hash table entry. */ |
a31d47c7 | 1941 | key = list3 (bus, interface, signal); |
17bc8f94 | 1942 | key1 = list4 (uname, service, path, handler); |
f04bb9b2 | 1943 | value = Fgethash (key, Vdbus_registered_objects_table, Qnil); |
17bc8f94 MA |
1944 | |
1945 | if (NILP (Fmember (key1, value))) | |
f04bb9b2 | 1946 | Fputhash (key, Fcons (key1, value), Vdbus_registered_objects_table); |
17bc8f94 MA |
1947 | |
1948 | /* Return object. */ | |
944cc4a8 | 1949 | RETURN_UNGCPRO (list2 (key, list3 (service, path, handler))); |
17bc8f94 MA |
1950 | } |
1951 | ||
1952 | DEFUN ("dbus-register-method", Fdbus_register_method, Sdbus_register_method, | |
1953 | 6, 6, 0, | |
1954 | doc: /* Register for method METHOD on the D-Bus BUS. | |
1955 | ||
0c372655 MA |
1956 | BUS is either a Lisp symbol, `:system' or `:session', or a string |
1957 | denoting the bus address. | |
17bc8f94 MA |
1958 | |
1959 | SERVICE is the D-Bus service name of the D-Bus object METHOD is | |
1960 | registered for. It must be a known name. | |
1961 | ||
1962 | PATH is the D-Bus object path SERVICE is registered. INTERFACE is the | |
1963 | interface offered by SERVICE. It must provide METHOD. HANDLER is a | |
1964 | Lisp function to be called when a method call is received. It must | |
1965 | accept the input arguments of METHOD. The return value of HANDLER is | |
abe136ee | 1966 | used for composing the returning D-Bus message. */) |
5842a27b | 1967 | (Lisp_Object bus, Lisp_Object service, Lisp_Object path, Lisp_Object interface, Lisp_Object method, Lisp_Object handler) |
17bc8f94 MA |
1968 | { |
1969 | Lisp_Object key, key1, value; | |
1970 | DBusConnection *connection; | |
1971 | int result; | |
1972 | DBusError derror; | |
1973 | ||
17bc8f94 | 1974 | /* Check parameters. */ |
17bc8f94 MA |
1975 | CHECK_STRING (service); |
1976 | CHECK_STRING (path); | |
1977 | CHECK_STRING (interface); | |
1978 | CHECK_STRING (method); | |
1979 | if (!FUNCTIONP (handler)) | |
1980 | wrong_type_argument (intern ("functionp"), handler); | |
1981 | /* TODO: We must check for a valid service name, otherwise there is | |
1982 | a segmentation fault. */ | |
1983 | ||
1984 | /* Open a connection to the bus. */ | |
2536a4b7 | 1985 | connection = xd_initialize (bus, TRUE); |
17bc8f94 MA |
1986 | |
1987 | /* Request the known name from the bus. We can ignore the result, | |
1988 | it is set to -1 if there is an error - kind of redundancy. */ | |
1989 | dbus_error_init (&derror); | |
1990 | result = dbus_bus_request_name (connection, SDATA (service), 0, &derror); | |
1991 | if (dbus_error_is_set (&derror)) | |
1992 | XD_ERROR (derror); | |
1993 | ||
f04bb9b2 MA |
1994 | /* Create a hash table entry. We use nil for the unique name, |
1995 | because the method might be called from anybody. */ | |
17bc8f94 MA |
1996 | key = list3 (bus, interface, method); |
1997 | key1 = list4 (Qnil, service, path, handler); | |
f04bb9b2 | 1998 | value = Fgethash (key, Vdbus_registered_objects_table, Qnil); |
a31d47c7 | 1999 | |
17bc8f94 | 2000 | if (NILP (Fmember (key1, value))) |
f04bb9b2 | 2001 | Fputhash (key, Fcons (key1, value), Vdbus_registered_objects_table); |
033b73e2 | 2002 | |
c1d5ce94 MA |
2003 | /* Cleanup. */ |
2004 | dbus_error_free (&derror); | |
2005 | ||
f5306ca3 MA |
2006 | /* Return object. */ |
2007 | return list2 (key, list3 (service, path, handler)); | |
033b73e2 MA |
2008 | } |
2009 | ||
033b73e2 MA |
2010 | \f |
2011 | void | |
971de7fb | 2012 | syms_of_dbusbind (void) |
033b73e2 MA |
2013 | { |
2014 | ||
d67b4f80 | 2015 | Qdbus_init_bus = intern_c_string ("dbus-init-bus"); |
058ed861 MA |
2016 | staticpro (&Qdbus_init_bus); |
2017 | defsubr (&Sdbus_init_bus); | |
2018 | ||
0c372655 MA |
2019 | Qdbus_close_bus = intern_c_string ("dbus-close-bus"); |
2020 | staticpro (&Qdbus_close_bus); | |
2021 | defsubr (&Sdbus_close_bus); | |
2022 | ||
d67b4f80 | 2023 | Qdbus_get_unique_name = intern_c_string ("dbus-get-unique-name"); |
033b73e2 MA |
2024 | staticpro (&Qdbus_get_unique_name); |
2025 | defsubr (&Sdbus_get_unique_name); | |
2026 | ||
d67b4f80 | 2027 | Qdbus_call_method = intern_c_string ("dbus-call-method"); |
033b73e2 MA |
2028 | staticpro (&Qdbus_call_method); |
2029 | defsubr (&Sdbus_call_method); | |
2030 | ||
d67b4f80 | 2031 | Qdbus_call_method_asynchronously = intern_c_string ("dbus-call-method-asynchronously"); |
13ecc6dc MA |
2032 | staticpro (&Qdbus_call_method_asynchronously); |
2033 | defsubr (&Sdbus_call_method_asynchronously); | |
2034 | ||
d67b4f80 | 2035 | Qdbus_method_return_internal = intern_c_string ("dbus-method-return-internal"); |
8c7a4ac5 MA |
2036 | staticpro (&Qdbus_method_return_internal); |
2037 | defsubr (&Sdbus_method_return_internal); | |
abe136ee | 2038 | |
d67b4f80 | 2039 | Qdbus_method_error_internal = intern_c_string ("dbus-method-error-internal"); |
13ecc6dc MA |
2040 | staticpro (&Qdbus_method_error_internal); |
2041 | defsubr (&Sdbus_method_error_internal); | |
2042 | ||
d67b4f80 | 2043 | Qdbus_send_signal = intern_c_string ("dbus-send-signal"); |
033b73e2 MA |
2044 | staticpro (&Qdbus_send_signal); |
2045 | defsubr (&Sdbus_send_signal); | |
2046 | ||
d67b4f80 | 2047 | Qdbus_register_signal = intern_c_string ("dbus-register-signal"); |
033b73e2 MA |
2048 | staticpro (&Qdbus_register_signal); |
2049 | defsubr (&Sdbus_register_signal); | |
2050 | ||
d67b4f80 | 2051 | Qdbus_register_method = intern_c_string ("dbus-register-method"); |
17bc8f94 MA |
2052 | staticpro (&Qdbus_register_method); |
2053 | defsubr (&Sdbus_register_method); | |
2054 | ||
d67b4f80 | 2055 | Qdbus_error = intern_c_string ("dbus-error"); |
033b73e2 MA |
2056 | staticpro (&Qdbus_error); |
2057 | Fput (Qdbus_error, Qerror_conditions, | |
2058 | list2 (Qdbus_error, Qerror)); | |
2059 | Fput (Qdbus_error, Qerror_message, | |
d67b4f80 | 2060 | make_pure_c_string ("D-Bus error")); |
033b73e2 | 2061 | |
d67b4f80 | 2062 | QCdbus_system_bus = intern_c_string (":system"); |
39abdd4a MA |
2063 | staticpro (&QCdbus_system_bus); |
2064 | ||
d67b4f80 | 2065 | QCdbus_session_bus = intern_c_string (":session"); |
39abdd4a | 2066 | staticpro (&QCdbus_session_bus); |
033b73e2 | 2067 | |
d67b4f80 | 2068 | QCdbus_timeout = intern_c_string (":timeout"); |
90b3fc84 MA |
2069 | staticpro (&QCdbus_timeout); |
2070 | ||
d67b4f80 | 2071 | QCdbus_type_byte = intern_c_string (":byte"); |
54371585 MA |
2072 | staticpro (&QCdbus_type_byte); |
2073 | ||
d67b4f80 | 2074 | QCdbus_type_boolean = intern_c_string (":boolean"); |
54371585 MA |
2075 | staticpro (&QCdbus_type_boolean); |
2076 | ||
d67b4f80 | 2077 | QCdbus_type_int16 = intern_c_string (":int16"); |
54371585 MA |
2078 | staticpro (&QCdbus_type_int16); |
2079 | ||
d67b4f80 | 2080 | QCdbus_type_uint16 = intern_c_string (":uint16"); |
54371585 MA |
2081 | staticpro (&QCdbus_type_uint16); |
2082 | ||
d67b4f80 | 2083 | QCdbus_type_int32 = intern_c_string (":int32"); |
54371585 MA |
2084 | staticpro (&QCdbus_type_int32); |
2085 | ||
d67b4f80 | 2086 | QCdbus_type_uint32 = intern_c_string (":uint32"); |
54371585 MA |
2087 | staticpro (&QCdbus_type_uint32); |
2088 | ||
d67b4f80 | 2089 | QCdbus_type_int64 = intern_c_string (":int64"); |
54371585 MA |
2090 | staticpro (&QCdbus_type_int64); |
2091 | ||
d67b4f80 | 2092 | QCdbus_type_uint64 = intern_c_string (":uint64"); |
54371585 MA |
2093 | staticpro (&QCdbus_type_uint64); |
2094 | ||
d67b4f80 | 2095 | QCdbus_type_double = intern_c_string (":double"); |
54371585 MA |
2096 | staticpro (&QCdbus_type_double); |
2097 | ||
d67b4f80 | 2098 | QCdbus_type_string = intern_c_string (":string"); |
54371585 MA |
2099 | staticpro (&QCdbus_type_string); |
2100 | ||
d67b4f80 | 2101 | QCdbus_type_object_path = intern_c_string (":object-path"); |
54371585 MA |
2102 | staticpro (&QCdbus_type_object_path); |
2103 | ||
d67b4f80 | 2104 | QCdbus_type_signature = intern_c_string (":signature"); |
54371585 MA |
2105 | staticpro (&QCdbus_type_signature); |
2106 | ||
d67b4f80 | 2107 | QCdbus_type_array = intern_c_string (":array"); |
54371585 MA |
2108 | staticpro (&QCdbus_type_array); |
2109 | ||
d67b4f80 | 2110 | QCdbus_type_variant = intern_c_string (":variant"); |
54371585 MA |
2111 | staticpro (&QCdbus_type_variant); |
2112 | ||
d67b4f80 | 2113 | QCdbus_type_struct = intern_c_string (":struct"); |
54371585 MA |
2114 | staticpro (&QCdbus_type_struct); |
2115 | ||
d67b4f80 | 2116 | QCdbus_type_dict_entry = intern_c_string (":dict-entry"); |
54371585 MA |
2117 | staticpro (&QCdbus_type_dict_entry); |
2118 | ||
0c372655 MA |
2119 | DEFVAR_LISP ("dbus-registered-buses", |
2120 | &Vdbus_registered_buses, | |
2121 | doc: /* List of D-Bus buses we are polling for messages. */); | |
2122 | Vdbus_registered_buses = Qnil; | |
2123 | ||
f04bb9b2 MA |
2124 | DEFVAR_LISP ("dbus-registered-objects-table", |
2125 | &Vdbus_registered_objects_table, | |
39abdd4a | 2126 | doc: /* Hash table of registered functions for D-Bus. |
0c372655 | 2127 | |
f04bb9b2 MA |
2128 | There are two different uses of the hash table: for accessing |
2129 | registered interfaces properties, targeted by signals or method calls, | |
2130 | and for calling handlers in case of non-blocking method call returns. | |
13ecc6dc MA |
2131 | |
2132 | In the first case, the key in the hash table is the list (BUS | |
0c372655 MA |
2133 | INTERFACE MEMBER). BUS is either a Lisp symbol, `:system' or |
2134 | `:session', or a string denoting the bus address. INTERFACE is a | |
2135 | string which denotes a D-Bus interface, and MEMBER, also a string, is | |
2136 | either a method, a signal or a property INTERFACE is offering. All | |
2137 | arguments but BUS must not be nil. | |
a31d47c7 | 2138 | |
f5306ca3 | 2139 | The value in the hash table is a list of quadruple lists |
f04bb9b2 | 2140 | \((UNAME SERVICE PATH OBJECT) (UNAME SERVICE PATH OBJECT) ...). |
a31d47c7 | 2141 | SERVICE is the service name as registered, UNAME is the corresponding |
f04bb9b2 MA |
2142 | unique name. In case of registered methods and properties, UNAME is |
2143 | nil. PATH is the object path of the sending object. All of them can | |
2144 | be nil, which means a wildcard then. OBJECT is either the handler to | |
2145 | be called when a D-Bus message, which matches the key criteria, | |
2146 | arrives (methods and signals), or a cons cell containing the value of | |
2147 | the property. | |
13ecc6dc | 2148 | |
0c372655 MA |
2149 | In the second case, the key in the hash table is the list (BUS |
2150 | SERIAL). BUS is either a Lisp symbol, `:system' or `:session', or a | |
2151 | string denoting the bus address. SERIAL is the serial number of the | |
2152 | non-blocking method call, a reply is expected. Both arguments must | |
2153 | not be nil. The value in the hash table is HANDLER, the function to | |
2154 | be called when the D-Bus reply message arrives. */); | |
2155 | { | |
2156 | Lisp_Object args[2]; | |
2157 | args[0] = QCtest; | |
2158 | args[1] = Qequal; | |
2159 | Vdbus_registered_objects_table = Fmake_hash_table (2, args); | |
2160 | } | |
033b73e2 MA |
2161 | |
2162 | DEFVAR_LISP ("dbus-debug", &Vdbus_debug, | |
39abdd4a | 2163 | doc: /* If non-nil, debug messages of D-Bus bindings are raised. */); |
033b73e2 MA |
2164 | #ifdef DBUS_DEBUG |
2165 | Vdbus_debug = Qt; | |
a79b0f28 MA |
2166 | /* We can also set environment variable DBUS_VERBOSE=1 in order to |
2167 | see more traces. This requires libdbus-1 to be configured with | |
2168 | --enable-verbose-mode. */ | |
033b73e2 MA |
2169 | #else |
2170 | Vdbus_debug = Qnil; | |
2171 | #endif | |
2172 | ||
d67b4f80 | 2173 | Fprovide (intern_c_string ("dbusbind"), Qnil); |
033b73e2 MA |
2174 | |
2175 | } | |
2176 | ||
2177 | #endif /* HAVE_DBUS */ | |
79f10da0 MB |
2178 | |
2179 | /* arch-tag: 0e828477-b571-4fe4-b559-5c9211bc14b8 | |
2180 | (do not change this comment) */ |