| 1 | /* Elisp bindings for D-Bus. |
| 2 | Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software: you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation, either version 3 of the License, or |
| 9 | (at your option) 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. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include "config.h" |
| 20 | |
| 21 | #ifdef HAVE_DBUS |
| 22 | #include <stdlib.h> |
| 23 | #include <stdio.h> |
| 24 | #include <dbus/dbus.h> |
| 25 | #include "lisp.h" |
| 26 | #include "frame.h" |
| 27 | #include "termhooks.h" |
| 28 | #include "keyboard.h" |
| 29 | |
| 30 | \f |
| 31 | /* Subroutines. */ |
| 32 | Lisp_Object Qdbus_get_unique_name; |
| 33 | Lisp_Object Qdbus_call_method; |
| 34 | Lisp_Object Qdbus_call_method_asynchronously; |
| 35 | Lisp_Object Qdbus_method_return_internal; |
| 36 | Lisp_Object Qdbus_method_error_internal; |
| 37 | Lisp_Object Qdbus_send_signal; |
| 38 | Lisp_Object Qdbus_register_signal; |
| 39 | Lisp_Object Qdbus_register_method; |
| 40 | |
| 41 | /* D-Bus error symbol. */ |
| 42 | Lisp_Object Qdbus_error; |
| 43 | |
| 44 | /* Lisp symbols of the system and session buses. */ |
| 45 | Lisp_Object QCdbus_system_bus, QCdbus_session_bus; |
| 46 | |
| 47 | /* Lisp symbol for method call timeout. */ |
| 48 | Lisp_Object QCdbus_timeout; |
| 49 | |
| 50 | /* Lisp symbols of D-Bus types. */ |
| 51 | Lisp_Object QCdbus_type_byte, QCdbus_type_boolean; |
| 52 | Lisp_Object QCdbus_type_int16, QCdbus_type_uint16; |
| 53 | Lisp_Object QCdbus_type_int32, QCdbus_type_uint32; |
| 54 | Lisp_Object QCdbus_type_int64, QCdbus_type_uint64; |
| 55 | Lisp_Object QCdbus_type_double, QCdbus_type_string; |
| 56 | Lisp_Object QCdbus_type_object_path, QCdbus_type_signature; |
| 57 | Lisp_Object QCdbus_type_array, QCdbus_type_variant; |
| 58 | Lisp_Object QCdbus_type_struct, QCdbus_type_dict_entry; |
| 59 | |
| 60 | /* Hash table which keeps function definitions. */ |
| 61 | Lisp_Object Vdbus_registered_functions_table; |
| 62 | |
| 63 | /* Whether to debug D-Bus. */ |
| 64 | Lisp_Object Vdbus_debug; |
| 65 | |
| 66 | /* Whether we are reading a D-Bus event. */ |
| 67 | int xd_in_read_queued_messages = 0; |
| 68 | |
| 69 | \f |
| 70 | /* We use "xd_" and "XD_" as prefix for all internal symbols, because |
| 71 | we don't want to poison other namespaces with "dbus_". */ |
| 72 | |
| 73 | /* Raise a signal. If we are reading events, we cannot signal; we |
| 74 | throw to xd_read_queued_messages then. */ |
| 75 | #define XD_SIGNAL1(arg) \ |
| 76 | do { \ |
| 77 | if (xd_in_read_queued_messages) \ |
| 78 | Fthrow (Qdbus_error, Qnil); \ |
| 79 | else \ |
| 80 | xsignal1 (Qdbus_error, arg); \ |
| 81 | } while (0) |
| 82 | |
| 83 | #define XD_SIGNAL2(arg1, arg2) \ |
| 84 | do { \ |
| 85 | if (xd_in_read_queued_messages) \ |
| 86 | Fthrow (Qdbus_error, Qnil); \ |
| 87 | else \ |
| 88 | xsignal2 (Qdbus_error, arg1, arg2); \ |
| 89 | } while (0) |
| 90 | |
| 91 | #define XD_SIGNAL3(arg1, arg2, arg3) \ |
| 92 | do { \ |
| 93 | if (xd_in_read_queued_messages) \ |
| 94 | Fthrow (Qdbus_error, Qnil); \ |
| 95 | else \ |
| 96 | xsignal3 (Qdbus_error, arg1, arg2, arg3); \ |
| 97 | } while (0) |
| 98 | |
| 99 | /* Raise a Lisp error from a D-Bus ERROR. */ |
| 100 | #define XD_ERROR(error) \ |
| 101 | do { \ |
| 102 | char s[1024]; \ |
| 103 | strncpy (s, error.message, 1023); \ |
| 104 | dbus_error_free (&error); \ |
| 105 | /* Remove the trailing newline. */ \ |
| 106 | if (strchr (s, '\n') != NULL) \ |
| 107 | s[strlen (s) - 1] = '\0'; \ |
| 108 | XD_SIGNAL1 (build_string (s)); \ |
| 109 | } while (0) |
| 110 | |
| 111 | /* Macros for debugging. In order to enable them, build with |
| 112 | "make MYCPPFLAGS='-DDBUS_DEBUG -Wall'". */ |
| 113 | #ifdef DBUS_DEBUG |
| 114 | #define XD_DEBUG_MESSAGE(...) \ |
| 115 | do { \ |
| 116 | char s[1024]; \ |
| 117 | snprintf (s, 1023, __VA_ARGS__); \ |
| 118 | printf ("%s: %s\n", __func__, s); \ |
| 119 | message ("%s: %s", __func__, s); \ |
| 120 | } while (0) |
| 121 | #define XD_DEBUG_VALID_LISP_OBJECT_P(object) \ |
| 122 | do { \ |
| 123 | if (!valid_lisp_object_p (object)) \ |
| 124 | { \ |
| 125 | XD_DEBUG_MESSAGE ("%d Assertion failure", __LINE__); \ |
| 126 | XD_SIGNAL1 (build_string ("Assertion failure")); \ |
| 127 | } \ |
| 128 | } while (0) |
| 129 | |
| 130 | #else /* !DBUS_DEBUG */ |
| 131 | #define XD_DEBUG_MESSAGE(...) \ |
| 132 | do { \ |
| 133 | if (!NILP (Vdbus_debug)) \ |
| 134 | { \ |
| 135 | char s[1024]; \ |
| 136 | snprintf (s, 1023, __VA_ARGS__); \ |
| 137 | message ("%s: %s", __func__, s); \ |
| 138 | } \ |
| 139 | } while (0) |
| 140 | #define XD_DEBUG_VALID_LISP_OBJECT_P(object) |
| 141 | #endif |
| 142 | |
| 143 | /* Check whether TYPE is a basic DBusType. */ |
| 144 | #define XD_BASIC_DBUS_TYPE(type) \ |
| 145 | ((type == DBUS_TYPE_BYTE) \ |
| 146 | || (type == DBUS_TYPE_BOOLEAN) \ |
| 147 | || (type == DBUS_TYPE_INT16) \ |
| 148 | || (type == DBUS_TYPE_UINT16) \ |
| 149 | || (type == DBUS_TYPE_INT32) \ |
| 150 | || (type == DBUS_TYPE_UINT32) \ |
| 151 | || (type == DBUS_TYPE_INT64) \ |
| 152 | || (type == DBUS_TYPE_UINT64) \ |
| 153 | || (type == DBUS_TYPE_DOUBLE) \ |
| 154 | || (type == DBUS_TYPE_STRING) \ |
| 155 | || (type == DBUS_TYPE_OBJECT_PATH) \ |
| 156 | || (type == DBUS_TYPE_SIGNATURE)) |
| 157 | |
| 158 | /* This was a macro. On Solaris 2.11 it was said to compile for |
| 159 | hours, when optimzation is enabled. So we have transferred it into |
| 160 | a function. */ |
| 161 | /* Determine the DBusType of a given Lisp symbol. OBJECT must be one |
| 162 | of the predefined D-Bus type symbols. */ |
| 163 | static int |
| 164 | xd_symbol_to_dbus_type (object) |
| 165 | Lisp_Object object; |
| 166 | { |
| 167 | return |
| 168 | ((EQ (object, QCdbus_type_byte)) ? DBUS_TYPE_BYTE |
| 169 | : (EQ (object, QCdbus_type_boolean)) ? DBUS_TYPE_BOOLEAN |
| 170 | : (EQ (object, QCdbus_type_int16)) ? DBUS_TYPE_INT16 |
| 171 | : (EQ (object, QCdbus_type_uint16)) ? DBUS_TYPE_UINT16 |
| 172 | : (EQ (object, QCdbus_type_int32)) ? DBUS_TYPE_INT32 |
| 173 | : (EQ (object, QCdbus_type_uint32)) ? DBUS_TYPE_UINT32 |
| 174 | : (EQ (object, QCdbus_type_int64)) ? DBUS_TYPE_INT64 |
| 175 | : (EQ (object, QCdbus_type_uint64)) ? DBUS_TYPE_UINT64 |
| 176 | : (EQ (object, QCdbus_type_double)) ? DBUS_TYPE_DOUBLE |
| 177 | : (EQ (object, QCdbus_type_string)) ? DBUS_TYPE_STRING |
| 178 | : (EQ (object, QCdbus_type_object_path)) ? DBUS_TYPE_OBJECT_PATH |
| 179 | : (EQ (object, QCdbus_type_signature)) ? DBUS_TYPE_SIGNATURE |
| 180 | : (EQ (object, QCdbus_type_array)) ? DBUS_TYPE_ARRAY |
| 181 | : (EQ (object, QCdbus_type_variant)) ? DBUS_TYPE_VARIANT |
| 182 | : (EQ (object, QCdbus_type_struct)) ? DBUS_TYPE_STRUCT |
| 183 | : (EQ (object, QCdbus_type_dict_entry)) ? DBUS_TYPE_DICT_ENTRY |
| 184 | : DBUS_TYPE_INVALID); |
| 185 | } |
| 186 | |
| 187 | /* Check whether a Lisp symbol is a predefined D-Bus type symbol. */ |
| 188 | #define XD_DBUS_TYPE_P(object) \ |
| 189 | (SYMBOLP (object) && ((xd_symbol_to_dbus_type (object) != DBUS_TYPE_INVALID))) |
| 190 | |
| 191 | /* Determine the DBusType of a given Lisp OBJECT. It is used to |
| 192 | convert Lisp objects, being arguments of `dbus-call-method' or |
| 193 | `dbus-send-signal', into corresponding C values appended as |
| 194 | arguments to a D-Bus message. */ |
| 195 | #define XD_OBJECT_TO_DBUS_TYPE(object) \ |
| 196 | ((EQ (object, Qt) || EQ (object, Qnil)) ? DBUS_TYPE_BOOLEAN \ |
| 197 | : (NATNUMP (object)) ? DBUS_TYPE_UINT32 \ |
| 198 | : (INTEGERP (object)) ? DBUS_TYPE_INT32 \ |
| 199 | : (FLOATP (object)) ? DBUS_TYPE_DOUBLE \ |
| 200 | : (STRINGP (object)) ? DBUS_TYPE_STRING \ |
| 201 | : (XD_DBUS_TYPE_P (object)) ? xd_symbol_to_dbus_type (object) \ |
| 202 | : (CONSP (object)) \ |
| 203 | ? ((XD_DBUS_TYPE_P (CAR_SAFE (object))) \ |
| 204 | ? ((XD_BASIC_DBUS_TYPE (xd_symbol_to_dbus_type (CAR_SAFE (object)))) \ |
| 205 | ? DBUS_TYPE_ARRAY \ |
| 206 | : xd_symbol_to_dbus_type (CAR_SAFE (object))) \ |
| 207 | : DBUS_TYPE_ARRAY) \ |
| 208 | : DBUS_TYPE_INVALID) |
| 209 | |
| 210 | /* Return a list pointer which does not have a Lisp symbol as car. */ |
| 211 | #define XD_NEXT_VALUE(object) \ |
| 212 | ((XD_DBUS_TYPE_P (CAR_SAFE (object))) ? CDR_SAFE (object) : object) |
| 213 | |
| 214 | /* Compute SIGNATURE of OBJECT. It must have a form that it can be |
| 215 | used in dbus_message_iter_open_container. DTYPE is the DBusType |
| 216 | the object is related to. It is passed as argument, because it |
| 217 | cannot be detected in basic type objects, when they are preceded by |
| 218 | a type symbol. PARENT_TYPE is the DBusType of a container this |
| 219 | signature is embedded, or DBUS_TYPE_INVALID. It is needed for the |
| 220 | check that DBUS_TYPE_DICT_ENTRY occurs only as array element. */ |
| 221 | static void |
| 222 | xd_signature (signature, dtype, parent_type, object) |
| 223 | char *signature; |
| 224 | unsigned int dtype, parent_type; |
| 225 | Lisp_Object object; |
| 226 | { |
| 227 | unsigned int subtype; |
| 228 | Lisp_Object elt; |
| 229 | char x[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
| 230 | |
| 231 | elt = object; |
| 232 | |
| 233 | switch (dtype) |
| 234 | { |
| 235 | case DBUS_TYPE_BYTE: |
| 236 | case DBUS_TYPE_UINT16: |
| 237 | case DBUS_TYPE_UINT32: |
| 238 | case DBUS_TYPE_UINT64: |
| 239 | CHECK_NATNUM (object); |
| 240 | sprintf (signature, "%c", dtype); |
| 241 | break; |
| 242 | |
| 243 | case DBUS_TYPE_BOOLEAN: |
| 244 | if (!EQ (object, Qt) && !EQ (object, Qnil)) |
| 245 | wrong_type_argument (intern ("booleanp"), object); |
| 246 | sprintf (signature, "%c", dtype); |
| 247 | break; |
| 248 | |
| 249 | case DBUS_TYPE_INT16: |
| 250 | case DBUS_TYPE_INT32: |
| 251 | case DBUS_TYPE_INT64: |
| 252 | CHECK_NUMBER (object); |
| 253 | sprintf (signature, "%c", dtype); |
| 254 | break; |
| 255 | |
| 256 | case DBUS_TYPE_DOUBLE: |
| 257 | CHECK_FLOAT (object); |
| 258 | sprintf (signature, "%c", dtype); |
| 259 | break; |
| 260 | |
| 261 | case DBUS_TYPE_STRING: |
| 262 | case DBUS_TYPE_OBJECT_PATH: |
| 263 | case DBUS_TYPE_SIGNATURE: |
| 264 | CHECK_STRING (object); |
| 265 | sprintf (signature, "%c", dtype); |
| 266 | break; |
| 267 | |
| 268 | case DBUS_TYPE_ARRAY: |
| 269 | /* Check that all list elements have the same D-Bus type. For |
| 270 | complex element types, we just check the container type, not |
| 271 | the whole element's signature. */ |
| 272 | CHECK_CONS (object); |
| 273 | |
| 274 | /* Type symbol is optional. */ |
| 275 | if (EQ (QCdbus_type_array, CAR_SAFE (elt))) |
| 276 | elt = XD_NEXT_VALUE (elt); |
| 277 | |
| 278 | /* If the array is empty, DBUS_TYPE_STRING is the default |
| 279 | element type. */ |
| 280 | if (NILP (elt)) |
| 281 | { |
| 282 | subtype = DBUS_TYPE_STRING; |
| 283 | strcpy (x, DBUS_TYPE_STRING_AS_STRING); |
| 284 | } |
| 285 | else |
| 286 | { |
| 287 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
| 288 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); |
| 289 | } |
| 290 | |
| 291 | /* If the element type is DBUS_TYPE_SIGNATURE, and this is the |
| 292 | only element, the value of this element is used as he array's |
| 293 | element signature. */ |
| 294 | if ((subtype == DBUS_TYPE_SIGNATURE) |
| 295 | && STRINGP (CAR_SAFE (XD_NEXT_VALUE (elt))) |
| 296 | && NILP (CDR_SAFE (XD_NEXT_VALUE (elt)))) |
| 297 | strcpy (x, SDATA (CAR_SAFE (XD_NEXT_VALUE (elt)))); |
| 298 | |
| 299 | while (!NILP (elt)) |
| 300 | { |
| 301 | if (subtype != XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt))) |
| 302 | wrong_type_argument (intern ("D-Bus"), CAR_SAFE (elt)); |
| 303 | elt = CDR_SAFE (XD_NEXT_VALUE (elt)); |
| 304 | } |
| 305 | |
| 306 | sprintf (signature, "%c%s", dtype, x); |
| 307 | break; |
| 308 | |
| 309 | case DBUS_TYPE_VARIANT: |
| 310 | /* Check that there is exactly one list element. */ |
| 311 | CHECK_CONS (object); |
| 312 | |
| 313 | elt = XD_NEXT_VALUE (elt); |
| 314 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
| 315 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); |
| 316 | |
| 317 | if (!NILP (CDR_SAFE (XD_NEXT_VALUE (elt)))) |
| 318 | wrong_type_argument (intern ("D-Bus"), |
| 319 | CAR_SAFE (CDR_SAFE (XD_NEXT_VALUE (elt)))); |
| 320 | |
| 321 | sprintf (signature, "%c", dtype); |
| 322 | break; |
| 323 | |
| 324 | case DBUS_TYPE_STRUCT: |
| 325 | /* A struct list might contain any number of elements with |
| 326 | different types. No further check needed. */ |
| 327 | CHECK_CONS (object); |
| 328 | |
| 329 | elt = XD_NEXT_VALUE (elt); |
| 330 | |
| 331 | /* Compose the signature from the elements. It is enclosed by |
| 332 | parentheses. */ |
| 333 | sprintf (signature, "%c", DBUS_STRUCT_BEGIN_CHAR ); |
| 334 | while (!NILP (elt)) |
| 335 | { |
| 336 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
| 337 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); |
| 338 | strcat (signature, x); |
| 339 | elt = CDR_SAFE (XD_NEXT_VALUE (elt)); |
| 340 | } |
| 341 | strcat (signature, DBUS_STRUCT_END_CHAR_AS_STRING); |
| 342 | break; |
| 343 | |
| 344 | case DBUS_TYPE_DICT_ENTRY: |
| 345 | /* Check that there are exactly two list elements, and the first |
| 346 | one is of basic type. The dictionary entry itself must be an |
| 347 | element of an array. */ |
| 348 | CHECK_CONS (object); |
| 349 | |
| 350 | /* Check the parent object type. */ |
| 351 | if (parent_type != DBUS_TYPE_ARRAY) |
| 352 | wrong_type_argument (intern ("D-Bus"), object); |
| 353 | |
| 354 | /* Compose the signature from the elements. It is enclosed by |
| 355 | curly braces. */ |
| 356 | sprintf (signature, "%c", DBUS_DICT_ENTRY_BEGIN_CHAR); |
| 357 | |
| 358 | /* First element. */ |
| 359 | elt = XD_NEXT_VALUE (elt); |
| 360 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
| 361 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); |
| 362 | strcat (signature, x); |
| 363 | |
| 364 | if (!XD_BASIC_DBUS_TYPE (subtype)) |
| 365 | wrong_type_argument (intern ("D-Bus"), CAR_SAFE (XD_NEXT_VALUE (elt))); |
| 366 | |
| 367 | /* Second element. */ |
| 368 | elt = CDR_SAFE (XD_NEXT_VALUE (elt)); |
| 369 | subtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (elt)); |
| 370 | xd_signature (x, subtype, dtype, CAR_SAFE (XD_NEXT_VALUE (elt))); |
| 371 | strcat (signature, x); |
| 372 | |
| 373 | if (!NILP (CDR_SAFE (XD_NEXT_VALUE (elt)))) |
| 374 | wrong_type_argument (intern ("D-Bus"), |
| 375 | CAR_SAFE (CDR_SAFE (XD_NEXT_VALUE (elt)))); |
| 376 | |
| 377 | /* Closing signature. */ |
| 378 | strcat (signature, DBUS_DICT_ENTRY_END_CHAR_AS_STRING); |
| 379 | break; |
| 380 | |
| 381 | default: |
| 382 | wrong_type_argument (intern ("D-Bus"), object); |
| 383 | } |
| 384 | |
| 385 | XD_DEBUG_MESSAGE ("%s", signature); |
| 386 | } |
| 387 | |
| 388 | /* Append C value, extracted from Lisp OBJECT, to iteration ITER. |
| 389 | DTYPE must be a valid DBusType. It is used to convert Lisp |
| 390 | objects, being arguments of `dbus-call-method' or |
| 391 | `dbus-send-signal', into corresponding C values appended as |
| 392 | arguments to a D-Bus message. */ |
| 393 | static void |
| 394 | xd_append_arg (dtype, object, iter) |
| 395 | unsigned int dtype; |
| 396 | Lisp_Object object; |
| 397 | DBusMessageIter *iter; |
| 398 | { |
| 399 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
| 400 | DBusMessageIter subiter; |
| 401 | |
| 402 | if (XD_BASIC_DBUS_TYPE (dtype)) |
| 403 | switch (dtype) |
| 404 | { |
| 405 | case DBUS_TYPE_BYTE: |
| 406 | { |
| 407 | unsigned char val = XUINT (object) & 0xFF; |
| 408 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
| 409 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) |
| 410 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 411 | return; |
| 412 | } |
| 413 | |
| 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)) |
| 419 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 420 | return; |
| 421 | } |
| 422 | |
| 423 | case DBUS_TYPE_INT16: |
| 424 | { |
| 425 | dbus_int16_t val = XINT (object); |
| 426 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); |
| 427 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) |
| 428 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 429 | return; |
| 430 | } |
| 431 | |
| 432 | case DBUS_TYPE_UINT16: |
| 433 | { |
| 434 | dbus_uint16_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 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 438 | return; |
| 439 | } |
| 440 | |
| 441 | case DBUS_TYPE_INT32: |
| 442 | { |
| 443 | dbus_int32_t val = XINT (object); |
| 444 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
| 445 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) |
| 446 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 447 | return; |
| 448 | } |
| 449 | |
| 450 | case DBUS_TYPE_UINT32: |
| 451 | { |
| 452 | dbus_uint32_t val = XUINT (object); |
| 453 | XD_DEBUG_MESSAGE ("%c %u", dtype, val); |
| 454 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) |
| 455 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 456 | return; |
| 457 | } |
| 458 | |
| 459 | case DBUS_TYPE_INT64: |
| 460 | { |
| 461 | dbus_int64_t val = XINT (object); |
| 462 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); |
| 463 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) |
| 464 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 465 | return; |
| 466 | } |
| 467 | |
| 468 | case DBUS_TYPE_UINT64: |
| 469 | { |
| 470 | dbus_uint64_t val = XUINT (object); |
| 471 | XD_DEBUG_MESSAGE ("%c %u", dtype, (unsigned int) val); |
| 472 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) |
| 473 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 474 | return; |
| 475 | } |
| 476 | |
| 477 | case DBUS_TYPE_DOUBLE: |
| 478 | XD_DEBUG_MESSAGE ("%c %f", dtype, XFLOAT_DATA (object)); |
| 479 | if (!dbus_message_iter_append_basic (iter, dtype, |
| 480 | &XFLOAT_DATA (object))) |
| 481 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 482 | return; |
| 483 | |
| 484 | case DBUS_TYPE_STRING: |
| 485 | case DBUS_TYPE_OBJECT_PATH: |
| 486 | case DBUS_TYPE_SIGNATURE: |
| 487 | { |
| 488 | char *val = SDATA (Fstring_make_unibyte (object)); |
| 489 | XD_DEBUG_MESSAGE ("%c %s", dtype, val); |
| 490 | if (!dbus_message_iter_append_basic (iter, dtype, &val)) |
| 491 | XD_SIGNAL2 (build_string ("Unable to append argument"), object); |
| 492 | return; |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | else /* Compound types. */ |
| 497 | { |
| 498 | |
| 499 | /* All compound types except array have a type symbol. For |
| 500 | array, it is optional. Skip it. */ |
| 501 | if (!XD_BASIC_DBUS_TYPE (XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)))) |
| 502 | object = XD_NEXT_VALUE (object); |
| 503 | |
| 504 | /* Open new subiteration. */ |
| 505 | switch (dtype) |
| 506 | { |
| 507 | case DBUS_TYPE_ARRAY: |
| 508 | /* An array has only elements of the same type. So it is |
| 509 | sufficient to check the first element's signature |
| 510 | only. */ |
| 511 | |
| 512 | if (NILP (object)) |
| 513 | /* If the array is empty, DBUS_TYPE_STRING is the default |
| 514 | element type. */ |
| 515 | strcpy (signature, DBUS_TYPE_STRING_AS_STRING); |
| 516 | |
| 517 | else |
| 518 | /* If the element type is DBUS_TYPE_SIGNATURE, and this is |
| 519 | the only element, the value of this element is used as |
| 520 | the array's element signature. */ |
| 521 | if ((XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)) |
| 522 | == DBUS_TYPE_SIGNATURE) |
| 523 | && STRINGP (CAR_SAFE (XD_NEXT_VALUE (object))) |
| 524 | && NILP (CDR_SAFE (XD_NEXT_VALUE (object)))) |
| 525 | { |
| 526 | strcpy (signature, SDATA (CAR_SAFE (XD_NEXT_VALUE (object)))); |
| 527 | object = CDR_SAFE (XD_NEXT_VALUE (object)); |
| 528 | } |
| 529 | |
| 530 | else |
| 531 | xd_signature (signature, |
| 532 | XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)), |
| 533 | dtype, CAR_SAFE (XD_NEXT_VALUE (object))); |
| 534 | |
| 535 | XD_DEBUG_MESSAGE ("%c %s %s", dtype, signature, |
| 536 | SDATA (format2 ("%s", object, Qnil))); |
| 537 | if (!dbus_message_iter_open_container (iter, dtype, |
| 538 | signature, &subiter)) |
| 539 | XD_SIGNAL3 (build_string ("Cannot open container"), |
| 540 | make_number (dtype), build_string (signature)); |
| 541 | break; |
| 542 | |
| 543 | case DBUS_TYPE_VARIANT: |
| 544 | /* A variant has just one element. */ |
| 545 | xd_signature (signature, XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)), |
| 546 | dtype, CAR_SAFE (XD_NEXT_VALUE (object))); |
| 547 | |
| 548 | XD_DEBUG_MESSAGE ("%c %s %s", dtype, signature, |
| 549 | SDATA (format2 ("%s", object, Qnil))); |
| 550 | if (!dbus_message_iter_open_container (iter, dtype, |
| 551 | signature, &subiter)) |
| 552 | XD_SIGNAL3 (build_string ("Cannot open container"), |
| 553 | make_number (dtype), build_string (signature)); |
| 554 | break; |
| 555 | |
| 556 | case DBUS_TYPE_STRUCT: |
| 557 | case DBUS_TYPE_DICT_ENTRY: |
| 558 | /* These containers do not require a signature. */ |
| 559 | XD_DEBUG_MESSAGE ("%c %s", dtype, |
| 560 | SDATA (format2 ("%s", object, Qnil))); |
| 561 | if (!dbus_message_iter_open_container (iter, dtype, NULL, &subiter)) |
| 562 | XD_SIGNAL2 (build_string ("Cannot open container"), |
| 563 | make_number (dtype)); |
| 564 | break; |
| 565 | } |
| 566 | |
| 567 | /* Loop over list elements. */ |
| 568 | while (!NILP (object)) |
| 569 | { |
| 570 | dtype = XD_OBJECT_TO_DBUS_TYPE (CAR_SAFE (object)); |
| 571 | object = XD_NEXT_VALUE (object); |
| 572 | |
| 573 | xd_append_arg (dtype, CAR_SAFE (object), &subiter); |
| 574 | |
| 575 | object = CDR_SAFE (object); |
| 576 | } |
| 577 | |
| 578 | /* Close the subiteration. */ |
| 579 | if (!dbus_message_iter_close_container (iter, &subiter)) |
| 580 | XD_SIGNAL2 (build_string ("Cannot close container"), |
| 581 | make_number (dtype)); |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | /* Retrieve C value from a DBusMessageIter structure ITER, and return |
| 586 | a converted Lisp object. The type DTYPE of the argument of the |
| 587 | D-Bus message must be a valid DBusType. Compound D-Bus types |
| 588 | result always in a Lisp list. */ |
| 589 | static Lisp_Object |
| 590 | xd_retrieve_arg (dtype, iter) |
| 591 | unsigned int dtype; |
| 592 | DBusMessageIter *iter; |
| 593 | { |
| 594 | |
| 595 | switch (dtype) |
| 596 | { |
| 597 | case DBUS_TYPE_BYTE: |
| 598 | { |
| 599 | unsigned int val; |
| 600 | dbus_message_iter_get_basic (iter, &val); |
| 601 | val = val & 0xFF; |
| 602 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
| 603 | return make_number (val); |
| 604 | } |
| 605 | |
| 606 | case DBUS_TYPE_BOOLEAN: |
| 607 | { |
| 608 | dbus_bool_t val; |
| 609 | dbus_message_iter_get_basic (iter, &val); |
| 610 | XD_DEBUG_MESSAGE ("%c %s", dtype, (val == FALSE) ? "false" : "true"); |
| 611 | return (val == FALSE) ? Qnil : Qt; |
| 612 | } |
| 613 | |
| 614 | case DBUS_TYPE_INT16: |
| 615 | case DBUS_TYPE_UINT16: |
| 616 | { |
| 617 | dbus_uint16_t val; |
| 618 | dbus_message_iter_get_basic (iter, &val); |
| 619 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
| 620 | return make_number (val); |
| 621 | } |
| 622 | |
| 623 | case DBUS_TYPE_INT32: |
| 624 | case DBUS_TYPE_UINT32: |
| 625 | { |
| 626 | /* Assignment to EMACS_INT stops GCC whining about limited |
| 627 | range of data type. */ |
| 628 | dbus_uint32_t val; |
| 629 | EMACS_INT val1; |
| 630 | dbus_message_iter_get_basic (iter, &val); |
| 631 | XD_DEBUG_MESSAGE ("%c %d", dtype, val); |
| 632 | val1 = val; |
| 633 | return make_fixnum_or_float (val1); |
| 634 | } |
| 635 | |
| 636 | case DBUS_TYPE_INT64: |
| 637 | case DBUS_TYPE_UINT64: |
| 638 | { |
| 639 | dbus_uint64_t val; |
| 640 | dbus_message_iter_get_basic (iter, &val); |
| 641 | XD_DEBUG_MESSAGE ("%c %d", dtype, (int) val); |
| 642 | return make_fixnum_or_float (val); |
| 643 | } |
| 644 | |
| 645 | case DBUS_TYPE_DOUBLE: |
| 646 | { |
| 647 | double val; |
| 648 | dbus_message_iter_get_basic (iter, &val); |
| 649 | XD_DEBUG_MESSAGE ("%c %f", dtype, val); |
| 650 | return make_float (val); |
| 651 | } |
| 652 | |
| 653 | case DBUS_TYPE_STRING: |
| 654 | case DBUS_TYPE_OBJECT_PATH: |
| 655 | case DBUS_TYPE_SIGNATURE: |
| 656 | { |
| 657 | char *val; |
| 658 | dbus_message_iter_get_basic (iter, &val); |
| 659 | XD_DEBUG_MESSAGE ("%c %s", dtype, val); |
| 660 | return build_string (val); |
| 661 | } |
| 662 | |
| 663 | case DBUS_TYPE_ARRAY: |
| 664 | case DBUS_TYPE_VARIANT: |
| 665 | case DBUS_TYPE_STRUCT: |
| 666 | case DBUS_TYPE_DICT_ENTRY: |
| 667 | { |
| 668 | Lisp_Object result; |
| 669 | struct gcpro gcpro1; |
| 670 | result = Qnil; |
| 671 | GCPRO1 (result); |
| 672 | DBusMessageIter subiter; |
| 673 | int subtype; |
| 674 | dbus_message_iter_recurse (iter, &subiter); |
| 675 | while ((subtype = dbus_message_iter_get_arg_type (&subiter)) |
| 676 | != DBUS_TYPE_INVALID) |
| 677 | { |
| 678 | result = Fcons (xd_retrieve_arg (subtype, &subiter), result); |
| 679 | dbus_message_iter_next (&subiter); |
| 680 | } |
| 681 | XD_DEBUG_MESSAGE ("%c %s", dtype, SDATA (format2 ("%s", result, Qnil))); |
| 682 | RETURN_UNGCPRO (Fnreverse (result)); |
| 683 | } |
| 684 | |
| 685 | default: |
| 686 | XD_DEBUG_MESSAGE ("DBusType '%c' not supported", dtype); |
| 687 | return Qnil; |
| 688 | } |
| 689 | } |
| 690 | |
| 691 | /* Initialize D-Bus connection. BUS is a Lisp symbol, either :system |
| 692 | or :session. It tells which D-Bus to be initialized. */ |
| 693 | static DBusConnection * |
| 694 | xd_initialize (bus) |
| 695 | Lisp_Object bus; |
| 696 | { |
| 697 | DBusConnection *connection; |
| 698 | DBusError derror; |
| 699 | int fd; |
| 700 | |
| 701 | /* Parameter check. */ |
| 702 | CHECK_SYMBOL (bus); |
| 703 | if (!((EQ (bus, QCdbus_system_bus)) || (EQ (bus, QCdbus_session_bus)))) |
| 704 | XD_SIGNAL2 (build_string ("Wrong bus name"), bus); |
| 705 | |
| 706 | /* Open a connection to the bus. */ |
| 707 | dbus_error_init (&derror); |
| 708 | |
| 709 | if (EQ (bus, QCdbus_system_bus)) |
| 710 | connection = dbus_bus_get (DBUS_BUS_SYSTEM, &derror); |
| 711 | else |
| 712 | connection = dbus_bus_get (DBUS_BUS_SESSION, &derror); |
| 713 | |
| 714 | if (dbus_error_is_set (&derror)) |
| 715 | XD_ERROR (derror); |
| 716 | |
| 717 | if (connection == NULL) |
| 718 | XD_SIGNAL2 (build_string ("No connection"), bus); |
| 719 | |
| 720 | /* Add connection file descriptor to input_wait_mask, in order to |
| 721 | let select() detect, whether a new message has been arrived. */ |
| 722 | if (dbus_connection_get_unix_fd (connection, &fd)) |
| 723 | add_keyboard_wait_descriptor (fd); |
| 724 | |
| 725 | /* Cleanup. */ |
| 726 | dbus_error_free (&derror); |
| 727 | |
| 728 | /* Return the result. */ |
| 729 | return connection; |
| 730 | } |
| 731 | |
| 732 | DEFUN ("dbus-get-unique-name", Fdbus_get_unique_name, Sdbus_get_unique_name, |
| 733 | 1, 1, 0, |
| 734 | doc: /* Return the unique name of Emacs registered at D-Bus BUS. */) |
| 735 | (bus) |
| 736 | Lisp_Object bus; |
| 737 | { |
| 738 | DBusConnection *connection; |
| 739 | const char *name; |
| 740 | |
| 741 | /* Check parameters. */ |
| 742 | CHECK_SYMBOL (bus); |
| 743 | |
| 744 | /* Open a connection to the bus. */ |
| 745 | connection = xd_initialize (bus); |
| 746 | |
| 747 | /* Request the name. */ |
| 748 | name = dbus_bus_get_unique_name (connection); |
| 749 | if (name == NULL) |
| 750 | XD_SIGNAL1 (build_string ("No unique name available")); |
| 751 | |
| 752 | /* Return. */ |
| 753 | return build_string (name); |
| 754 | } |
| 755 | |
| 756 | DEFUN ("dbus-call-method", Fdbus_call_method, Sdbus_call_method, 5, MANY, 0, |
| 757 | doc: /* Call METHOD on the D-Bus BUS. |
| 758 | |
| 759 | BUS is either the symbol `:system' or the symbol `:session'. |
| 760 | |
| 761 | SERVICE is the D-Bus service name to be used. PATH is the D-Bus |
| 762 | object path SERVICE is registered at. INTERFACE is an interface |
| 763 | offered by SERVICE. It must provide METHOD. |
| 764 | |
| 765 | If the parameter `:timeout' is given, the following integer TIMEOUT |
| 766 | specifies the maximun number of milliseconds the method call must |
| 767 | return. The default value is 25.000. If the method call doesn't |
| 768 | return in time, a D-Bus error is raised. |
| 769 | |
| 770 | All other arguments ARGS are passed to METHOD as arguments. They are |
| 771 | converted into D-Bus types via the following rules: |
| 772 | |
| 773 | t and nil => DBUS_TYPE_BOOLEAN |
| 774 | number => DBUS_TYPE_UINT32 |
| 775 | integer => DBUS_TYPE_INT32 |
| 776 | float => DBUS_TYPE_DOUBLE |
| 777 | string => DBUS_TYPE_STRING |
| 778 | list => DBUS_TYPE_ARRAY |
| 779 | |
| 780 | All arguments can be preceded by a type symbol. For details about |
| 781 | type symbols, see Info node `(dbus)Type Conversion'. |
| 782 | |
| 783 | `dbus-call-method' returns the resulting values of METHOD as a list of |
| 784 | Lisp objects. The type conversion happens the other direction as for |
| 785 | input arguments. It follows the mapping rules: |
| 786 | |
| 787 | DBUS_TYPE_BOOLEAN => t or nil |
| 788 | DBUS_TYPE_BYTE => number |
| 789 | DBUS_TYPE_UINT16 => number |
| 790 | DBUS_TYPE_INT16 => integer |
| 791 | DBUS_TYPE_UINT32 => number or float |
| 792 | DBUS_TYPE_INT32 => integer or float |
| 793 | DBUS_TYPE_UINT64 => number or float |
| 794 | DBUS_TYPE_INT64 => integer or float |
| 795 | DBUS_TYPE_DOUBLE => float |
| 796 | DBUS_TYPE_STRING => string |
| 797 | DBUS_TYPE_OBJECT_PATH => string |
| 798 | DBUS_TYPE_SIGNATURE => string |
| 799 | DBUS_TYPE_ARRAY => list |
| 800 | DBUS_TYPE_VARIANT => list |
| 801 | DBUS_TYPE_STRUCT => list |
| 802 | DBUS_TYPE_DICT_ENTRY => list |
| 803 | |
| 804 | Example: |
| 805 | |
| 806 | \(dbus-call-method |
| 807 | :session "org.gnome.seahorse" "/org/gnome/seahorse/keys/openpgp" |
| 808 | "org.gnome.seahorse.Keys" "GetKeyField" |
| 809 | "openpgp:657984B8C7A966DD" "simple-name") |
| 810 | |
| 811 | => (t ("Philip R. Zimmermann")) |
| 812 | |
| 813 | If the result of the METHOD call is just one value, the converted Lisp |
| 814 | object is returned instead of a list containing this single Lisp object. |
| 815 | |
| 816 | \(dbus-call-method |
| 817 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/devices/computer" |
| 818 | "org.freedesktop.Hal.Device" "GetPropertyString" |
| 819 | "system.kernel.machine") |
| 820 | |
| 821 | => "i686" |
| 822 | |
| 823 | usage: (dbus-call-method BUS SERVICE PATH INTERFACE METHOD &optional :timeout TIMEOUT &rest ARGS) */) |
| 824 | (nargs, args) |
| 825 | int nargs; |
| 826 | register Lisp_Object *args; |
| 827 | { |
| 828 | Lisp_Object bus, service, path, interface, method; |
| 829 | Lisp_Object result; |
| 830 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
| 831 | DBusConnection *connection; |
| 832 | DBusMessage *dmessage; |
| 833 | DBusMessage *reply; |
| 834 | DBusMessageIter iter; |
| 835 | DBusError derror; |
| 836 | unsigned int dtype; |
| 837 | int timeout = -1; |
| 838 | int i = 5; |
| 839 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
| 840 | |
| 841 | /* Check parameters. */ |
| 842 | bus = args[0]; |
| 843 | service = args[1]; |
| 844 | path = args[2]; |
| 845 | interface = args[3]; |
| 846 | method = args[4]; |
| 847 | |
| 848 | CHECK_SYMBOL (bus); |
| 849 | CHECK_STRING (service); |
| 850 | CHECK_STRING (path); |
| 851 | CHECK_STRING (interface); |
| 852 | CHECK_STRING (method); |
| 853 | GCPRO5 (bus, service, path, interface, method); |
| 854 | |
| 855 | XD_DEBUG_MESSAGE ("%s %s %s %s", |
| 856 | SDATA (service), |
| 857 | SDATA (path), |
| 858 | SDATA (interface), |
| 859 | SDATA (method)); |
| 860 | |
| 861 | /* Open a connection to the bus. */ |
| 862 | connection = xd_initialize (bus); |
| 863 | |
| 864 | /* Create the message. */ |
| 865 | dmessage = dbus_message_new_method_call (SDATA (service), |
| 866 | SDATA (path), |
| 867 | SDATA (interface), |
| 868 | SDATA (method)); |
| 869 | UNGCPRO; |
| 870 | if (dmessage == NULL) |
| 871 | XD_SIGNAL1 (build_string ("Unable to create a new message")); |
| 872 | |
| 873 | /* Check for timeout parameter. */ |
| 874 | if ((i+2 <= nargs) && (EQ ((args[i]), QCdbus_timeout))) |
| 875 | { |
| 876 | CHECK_NATNUM (args[i+1]); |
| 877 | timeout = XUINT (args[i+1]); |
| 878 | i = i+2; |
| 879 | } |
| 880 | |
| 881 | /* Initialize parameter list of message. */ |
| 882 | dbus_message_iter_init_append (dmessage, &iter); |
| 883 | |
| 884 | /* Append parameters to the message. */ |
| 885 | for (; i < nargs; ++i) |
| 886 | { |
| 887 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
| 888 | if (XD_DBUS_TYPE_P (args[i])) |
| 889 | { |
| 890 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 891 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); |
| 892 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4, |
| 893 | SDATA (format2 ("%s", args[i], Qnil)), |
| 894 | SDATA (format2 ("%s", args[i+1], Qnil))); |
| 895 | ++i; |
| 896 | } |
| 897 | else |
| 898 | { |
| 899 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 900 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-4, |
| 901 | SDATA (format2 ("%s", args[i], Qnil))); |
| 902 | } |
| 903 | |
| 904 | /* Check for valid signature. We use DBUS_TYPE_INVALID as |
| 905 | indication that there is no parent type. */ |
| 906 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); |
| 907 | |
| 908 | xd_append_arg (dtype, args[i], &iter); |
| 909 | } |
| 910 | |
| 911 | /* Send the message. */ |
| 912 | dbus_error_init (&derror); |
| 913 | reply = dbus_connection_send_with_reply_and_block (connection, |
| 914 | dmessage, |
| 915 | timeout, |
| 916 | &derror); |
| 917 | |
| 918 | if (dbus_error_is_set (&derror)) |
| 919 | XD_ERROR (derror); |
| 920 | |
| 921 | if (reply == NULL) |
| 922 | XD_SIGNAL1 (build_string ("No reply")); |
| 923 | |
| 924 | XD_DEBUG_MESSAGE ("Message sent"); |
| 925 | |
| 926 | /* Collect the results. */ |
| 927 | result = Qnil; |
| 928 | GCPRO1 (result); |
| 929 | |
| 930 | if (dbus_message_iter_init (reply, &iter)) |
| 931 | { |
| 932 | /* Loop over the parameters of the D-Bus reply message. Construct a |
| 933 | Lisp list, which is returned by `dbus-call-method'. */ |
| 934 | while ((dtype = dbus_message_iter_get_arg_type (&iter)) |
| 935 | != DBUS_TYPE_INVALID) |
| 936 | { |
| 937 | result = Fcons (xd_retrieve_arg (dtype, &iter), result); |
| 938 | dbus_message_iter_next (&iter); |
| 939 | } |
| 940 | } |
| 941 | else |
| 942 | { |
| 943 | /* No arguments: just return nil. */ |
| 944 | } |
| 945 | |
| 946 | /* Cleanup. */ |
| 947 | dbus_error_free (&derror); |
| 948 | dbus_message_unref (dmessage); |
| 949 | dbus_message_unref (reply); |
| 950 | |
| 951 | /* Return the result. If there is only one single Lisp object, |
| 952 | return it as-it-is, otherwise return the reversed list. */ |
| 953 | if (XUINT (Flength (result)) == 1) |
| 954 | RETURN_UNGCPRO (CAR_SAFE (result)); |
| 955 | else |
| 956 | RETURN_UNGCPRO (Fnreverse (result)); |
| 957 | } |
| 958 | |
| 959 | DEFUN ("dbus-call-method-asynchronously", Fdbus_call_method_asynchronously, |
| 960 | Sdbus_call_method_asynchronously, 6, MANY, 0, |
| 961 | doc: /* Call METHOD on the D-Bus BUS asynchronously. |
| 962 | |
| 963 | BUS is either the symbol `:system' or the symbol `:session'. |
| 964 | |
| 965 | SERVICE is the D-Bus service name to be used. PATH is the D-Bus |
| 966 | object path SERVICE is registered at. INTERFACE is an interface |
| 967 | offered by SERVICE. It must provide METHOD. |
| 968 | |
| 969 | HANDLER is a Lisp function, which is called when the corresponding |
| 970 | return message has arrived. If HANDLER is nil, no return message will |
| 971 | be expected. |
| 972 | |
| 973 | If the parameter `:timeout' is given, the following integer TIMEOUT |
| 974 | specifies the maximun number of milliseconds the method call must |
| 975 | return. The default value is 25.000. If the method call doesn't |
| 976 | return in time, a D-Bus error is raised. |
| 977 | |
| 978 | All other arguments ARGS are passed to METHOD as arguments. They are |
| 979 | converted into D-Bus types via the following rules: |
| 980 | |
| 981 | t and nil => DBUS_TYPE_BOOLEAN |
| 982 | number => DBUS_TYPE_UINT32 |
| 983 | integer => DBUS_TYPE_INT32 |
| 984 | float => DBUS_TYPE_DOUBLE |
| 985 | string => DBUS_TYPE_STRING |
| 986 | list => DBUS_TYPE_ARRAY |
| 987 | |
| 988 | All arguments can be preceded by a type symbol. For details about |
| 989 | type symbols, see Info node `(dbus)Type Conversion'. |
| 990 | |
| 991 | Unless HANDLER is nil, the function returns a key into the hash table |
| 992 | `dbus-registered-functions-table'. The corresponding entry in the |
| 993 | hash table is removed, when the return message has been arrived, and |
| 994 | HANDLER is called. |
| 995 | |
| 996 | Example: |
| 997 | |
| 998 | \(dbus-call-method-asynchronously |
| 999 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/devices/computer" |
| 1000 | "org.freedesktop.Hal.Device" "GetPropertyString" 'message |
| 1001 | "system.kernel.machine") |
| 1002 | |
| 1003 | => (:system 2) |
| 1004 | |
| 1005 | -| i686 |
| 1006 | |
| 1007 | usage: (dbus-call-method-asynchronously BUS SERVICE PATH INTERFACE METHOD HANDLER &optional :timeout TIMEOUT &rest ARGS) */) |
| 1008 | (nargs, args) |
| 1009 | int nargs; |
| 1010 | register Lisp_Object *args; |
| 1011 | { |
| 1012 | Lisp_Object bus, service, path, interface, method, handler; |
| 1013 | Lisp_Object result; |
| 1014 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6; |
| 1015 | DBusConnection *connection; |
| 1016 | DBusMessage *dmessage; |
| 1017 | DBusMessageIter iter; |
| 1018 | unsigned int dtype; |
| 1019 | int timeout = -1; |
| 1020 | int i = 6; |
| 1021 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
| 1022 | |
| 1023 | /* Check parameters. */ |
| 1024 | bus = args[0]; |
| 1025 | service = args[1]; |
| 1026 | path = args[2]; |
| 1027 | interface = args[3]; |
| 1028 | method = args[4]; |
| 1029 | handler = args[5]; |
| 1030 | |
| 1031 | CHECK_SYMBOL (bus); |
| 1032 | CHECK_STRING (service); |
| 1033 | CHECK_STRING (path); |
| 1034 | CHECK_STRING (interface); |
| 1035 | CHECK_STRING (method); |
| 1036 | if (!NILP (handler) && !FUNCTIONP (handler)) |
| 1037 | wrong_type_argument (intern ("functionp"), handler); |
| 1038 | GCPRO6 (bus, service, path, interface, method, handler); |
| 1039 | |
| 1040 | XD_DEBUG_MESSAGE ("%s %s %s %s", |
| 1041 | SDATA (service), |
| 1042 | SDATA (path), |
| 1043 | SDATA (interface), |
| 1044 | SDATA (method)); |
| 1045 | |
| 1046 | /* Open a connection to the bus. */ |
| 1047 | connection = xd_initialize (bus); |
| 1048 | |
| 1049 | /* Create the message. */ |
| 1050 | dmessage = dbus_message_new_method_call (SDATA (service), |
| 1051 | SDATA (path), |
| 1052 | SDATA (interface), |
| 1053 | SDATA (method)); |
| 1054 | if (dmessage == NULL) |
| 1055 | XD_SIGNAL1 (build_string ("Unable to create a new message")); |
| 1056 | |
| 1057 | /* Check for timeout parameter. */ |
| 1058 | if ((i+2 <= nargs) && (EQ ((args[i]), QCdbus_timeout))) |
| 1059 | { |
| 1060 | CHECK_NATNUM (args[i+1]); |
| 1061 | timeout = XUINT (args[i+1]); |
| 1062 | i = i+2; |
| 1063 | } |
| 1064 | |
| 1065 | /* Initialize parameter list of message. */ |
| 1066 | dbus_message_iter_init_append (dmessage, &iter); |
| 1067 | |
| 1068 | /* Append parameters to the message. */ |
| 1069 | for (; i < nargs; ++i) |
| 1070 | { |
| 1071 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
| 1072 | if (XD_DBUS_TYPE_P (args[i])) |
| 1073 | { |
| 1074 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 1075 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); |
| 1076 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4, |
| 1077 | SDATA (format2 ("%s", args[i], Qnil)), |
| 1078 | SDATA (format2 ("%s", args[i+1], Qnil))); |
| 1079 | ++i; |
| 1080 | } |
| 1081 | else |
| 1082 | { |
| 1083 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 1084 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-4, |
| 1085 | SDATA (format2 ("%s", args[i], Qnil))); |
| 1086 | } |
| 1087 | |
| 1088 | /* Check for valid signature. We use DBUS_TYPE_INVALID as |
| 1089 | indication that there is no parent type. */ |
| 1090 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); |
| 1091 | |
| 1092 | xd_append_arg (dtype, args[i], &iter); |
| 1093 | } |
| 1094 | |
| 1095 | if (!NILP (handler)) |
| 1096 | { |
| 1097 | /* Send the message. The message is just added to the outgoing |
| 1098 | message queue. */ |
| 1099 | if (!dbus_connection_send_with_reply (connection, dmessage, |
| 1100 | NULL, timeout)) |
| 1101 | XD_SIGNAL1 (build_string ("Cannot send message")); |
| 1102 | |
| 1103 | /* The result is the key in Vdbus_registered_functions_table. */ |
| 1104 | result = (list2 (bus, make_number (dbus_message_get_serial (dmessage)))); |
| 1105 | |
| 1106 | /* Create a hash table entry. */ |
| 1107 | Fputhash (result, handler, Vdbus_registered_functions_table); |
| 1108 | } |
| 1109 | else |
| 1110 | { |
| 1111 | /* Send the message. The message is just added to the outgoing |
| 1112 | message queue. */ |
| 1113 | if (!dbus_connection_send (connection, dmessage, NULL)) |
| 1114 | XD_SIGNAL1 (build_string ("Cannot send message")); |
| 1115 | |
| 1116 | result = Qnil; |
| 1117 | } |
| 1118 | |
| 1119 | /* Flush connection to ensure the message is handled. */ |
| 1120 | dbus_connection_flush (connection); |
| 1121 | |
| 1122 | XD_DEBUG_MESSAGE ("Message sent"); |
| 1123 | |
| 1124 | /* Cleanup. */ |
| 1125 | dbus_message_unref (dmessage); |
| 1126 | |
| 1127 | /* Return the result. */ |
| 1128 | RETURN_UNGCPRO (result); |
| 1129 | } |
| 1130 | |
| 1131 | DEFUN ("dbus-method-return-internal", Fdbus_method_return_internal, |
| 1132 | Sdbus_method_return_internal, |
| 1133 | 3, MANY, 0, |
| 1134 | doc: /* Return for message SERIAL on the D-Bus BUS. |
| 1135 | This is an internal function, it shall not be used outside dbus.el. |
| 1136 | |
| 1137 | usage: (dbus-method-return-internal BUS SERIAL SERVICE &rest ARGS) */) |
| 1138 | (nargs, args) |
| 1139 | int nargs; |
| 1140 | register Lisp_Object *args; |
| 1141 | { |
| 1142 | Lisp_Object bus, serial, service; |
| 1143 | struct gcpro gcpro1, gcpro2, gcpro3; |
| 1144 | DBusConnection *connection; |
| 1145 | DBusMessage *dmessage; |
| 1146 | DBusMessageIter iter; |
| 1147 | unsigned int dtype; |
| 1148 | int i; |
| 1149 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
| 1150 | |
| 1151 | /* Check parameters. */ |
| 1152 | bus = args[0]; |
| 1153 | serial = args[1]; |
| 1154 | service = args[2]; |
| 1155 | |
| 1156 | CHECK_SYMBOL (bus); |
| 1157 | CHECK_NUMBER (serial); |
| 1158 | CHECK_STRING (service); |
| 1159 | GCPRO3 (bus, serial, service); |
| 1160 | |
| 1161 | XD_DEBUG_MESSAGE ("%d %s ", XUINT (serial), SDATA (service)); |
| 1162 | |
| 1163 | /* Open a connection to the bus. */ |
| 1164 | connection = xd_initialize (bus); |
| 1165 | |
| 1166 | /* Create the message. */ |
| 1167 | dmessage = dbus_message_new (DBUS_MESSAGE_TYPE_METHOD_RETURN); |
| 1168 | if ((dmessage == NULL) |
| 1169 | || (!dbus_message_set_reply_serial (dmessage, XUINT (serial))) |
| 1170 | || (!dbus_message_set_destination (dmessage, SDATA (service)))) |
| 1171 | { |
| 1172 | UNGCPRO; |
| 1173 | XD_SIGNAL1 (build_string ("Unable to create a return message")); |
| 1174 | } |
| 1175 | |
| 1176 | UNGCPRO; |
| 1177 | |
| 1178 | /* Initialize parameter list of message. */ |
| 1179 | dbus_message_iter_init_append (dmessage, &iter); |
| 1180 | |
| 1181 | /* Append parameters to the message. */ |
| 1182 | for (i = 3; i < nargs; ++i) |
| 1183 | { |
| 1184 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
| 1185 | if (XD_DBUS_TYPE_P (args[i])) |
| 1186 | { |
| 1187 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 1188 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); |
| 1189 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-2, |
| 1190 | SDATA (format2 ("%s", args[i], Qnil)), |
| 1191 | SDATA (format2 ("%s", args[i+1], Qnil))); |
| 1192 | ++i; |
| 1193 | } |
| 1194 | else |
| 1195 | { |
| 1196 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 1197 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-2, |
| 1198 | SDATA (format2 ("%s", args[i], Qnil))); |
| 1199 | } |
| 1200 | |
| 1201 | /* Check for valid signature. We use DBUS_TYPE_INVALID as |
| 1202 | indication that there is no parent type. */ |
| 1203 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); |
| 1204 | |
| 1205 | xd_append_arg (dtype, args[i], &iter); |
| 1206 | } |
| 1207 | |
| 1208 | /* Send the message. The message is just added to the outgoing |
| 1209 | message queue. */ |
| 1210 | if (!dbus_connection_send (connection, dmessage, NULL)) |
| 1211 | XD_SIGNAL1 (build_string ("Cannot send message")); |
| 1212 | |
| 1213 | /* Flush connection to ensure the message is handled. */ |
| 1214 | dbus_connection_flush (connection); |
| 1215 | |
| 1216 | XD_DEBUG_MESSAGE ("Message sent"); |
| 1217 | |
| 1218 | /* Cleanup. */ |
| 1219 | dbus_message_unref (dmessage); |
| 1220 | |
| 1221 | /* Return. */ |
| 1222 | return Qt; |
| 1223 | } |
| 1224 | |
| 1225 | DEFUN ("dbus-method-error-internal", Fdbus_method_error_internal, |
| 1226 | Sdbus_method_error_internal, |
| 1227 | 3, MANY, 0, |
| 1228 | doc: /* Return error message for message SERIAL on the D-Bus BUS. |
| 1229 | This is an internal function, it shall not be used outside dbus.el. |
| 1230 | |
| 1231 | usage: (dbus-method-error-internal BUS SERIAL SERVICE &rest ARGS) */) |
| 1232 | (nargs, args) |
| 1233 | int nargs; |
| 1234 | register Lisp_Object *args; |
| 1235 | { |
| 1236 | Lisp_Object bus, serial, service; |
| 1237 | struct gcpro gcpro1, gcpro2, gcpro3; |
| 1238 | DBusConnection *connection; |
| 1239 | DBusMessage *dmessage; |
| 1240 | DBusMessageIter iter; |
| 1241 | unsigned int dtype; |
| 1242 | int i; |
| 1243 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
| 1244 | |
| 1245 | /* Check parameters. */ |
| 1246 | bus = args[0]; |
| 1247 | serial = args[1]; |
| 1248 | service = args[2]; |
| 1249 | |
| 1250 | CHECK_SYMBOL (bus); |
| 1251 | CHECK_NUMBER (serial); |
| 1252 | CHECK_STRING (service); |
| 1253 | GCPRO3 (bus, serial, service); |
| 1254 | |
| 1255 | XD_DEBUG_MESSAGE ("%d %s ", XUINT (serial), SDATA (service)); |
| 1256 | |
| 1257 | /* Open a connection to the bus. */ |
| 1258 | connection = xd_initialize (bus); |
| 1259 | |
| 1260 | /* Create the message. */ |
| 1261 | dmessage = dbus_message_new (DBUS_MESSAGE_TYPE_ERROR); |
| 1262 | if ((dmessage == NULL) |
| 1263 | || (!dbus_message_set_error_name (dmessage, DBUS_ERROR_FAILED)) |
| 1264 | || (!dbus_message_set_reply_serial (dmessage, XUINT (serial))) |
| 1265 | || (!dbus_message_set_destination (dmessage, SDATA (service)))) |
| 1266 | { |
| 1267 | UNGCPRO; |
| 1268 | XD_SIGNAL1 (build_string ("Unable to create a error message")); |
| 1269 | } |
| 1270 | |
| 1271 | UNGCPRO; |
| 1272 | |
| 1273 | /* Initialize parameter list of message. */ |
| 1274 | dbus_message_iter_init_append (dmessage, &iter); |
| 1275 | |
| 1276 | /* Append parameters to the message. */ |
| 1277 | for (i = 3; i < nargs; ++i) |
| 1278 | { |
| 1279 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
| 1280 | if (XD_DBUS_TYPE_P (args[i])) |
| 1281 | { |
| 1282 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 1283 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); |
| 1284 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-2, |
| 1285 | SDATA (format2 ("%s", args[i], Qnil)), |
| 1286 | SDATA (format2 ("%s", args[i+1], Qnil))); |
| 1287 | ++i; |
| 1288 | } |
| 1289 | else |
| 1290 | { |
| 1291 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 1292 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-2, |
| 1293 | SDATA (format2 ("%s", args[i], Qnil))); |
| 1294 | } |
| 1295 | |
| 1296 | /* Check for valid signature. We use DBUS_TYPE_INVALID as |
| 1297 | indication that there is no parent type. */ |
| 1298 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); |
| 1299 | |
| 1300 | xd_append_arg (dtype, args[i], &iter); |
| 1301 | } |
| 1302 | |
| 1303 | /* Send the message. The message is just added to the outgoing |
| 1304 | message queue. */ |
| 1305 | if (!dbus_connection_send (connection, dmessage, NULL)) |
| 1306 | XD_SIGNAL1 (build_string ("Cannot send message")); |
| 1307 | |
| 1308 | /* Flush connection to ensure the message is handled. */ |
| 1309 | dbus_connection_flush (connection); |
| 1310 | |
| 1311 | XD_DEBUG_MESSAGE ("Message sent"); |
| 1312 | |
| 1313 | /* Cleanup. */ |
| 1314 | dbus_message_unref (dmessage); |
| 1315 | |
| 1316 | /* Return. */ |
| 1317 | return Qt; |
| 1318 | } |
| 1319 | |
| 1320 | DEFUN ("dbus-send-signal", Fdbus_send_signal, Sdbus_send_signal, 5, MANY, 0, |
| 1321 | doc: /* Send signal SIGNAL on the D-Bus BUS. |
| 1322 | |
| 1323 | BUS is either the symbol `:system' or the symbol `:session'. |
| 1324 | |
| 1325 | SERVICE is the D-Bus service name SIGNAL is sent from. PATH is the |
| 1326 | D-Bus object path SERVICE is registered at. INTERFACE is an interface |
| 1327 | offered by SERVICE. It must provide signal SIGNAL. |
| 1328 | |
| 1329 | All other arguments ARGS are passed to SIGNAL as arguments. They are |
| 1330 | converted into D-Bus types via the following rules: |
| 1331 | |
| 1332 | t and nil => DBUS_TYPE_BOOLEAN |
| 1333 | number => DBUS_TYPE_UINT32 |
| 1334 | integer => DBUS_TYPE_INT32 |
| 1335 | float => DBUS_TYPE_DOUBLE |
| 1336 | string => DBUS_TYPE_STRING |
| 1337 | list => DBUS_TYPE_ARRAY |
| 1338 | |
| 1339 | All arguments can be preceded by a type symbol. For details about |
| 1340 | type symbols, see Info node `(dbus)Type Conversion'. |
| 1341 | |
| 1342 | Example: |
| 1343 | |
| 1344 | \(dbus-send-signal |
| 1345 | :session "org.gnu.Emacs" "/org/gnu/Emacs" |
| 1346 | "org.gnu.Emacs.FileManager" "FileModified" "/home/albinus/.emacs") |
| 1347 | |
| 1348 | usage: (dbus-send-signal BUS SERVICE PATH INTERFACE SIGNAL &rest ARGS) */) |
| 1349 | (nargs, args) |
| 1350 | int nargs; |
| 1351 | register Lisp_Object *args; |
| 1352 | { |
| 1353 | Lisp_Object bus, service, path, interface, signal; |
| 1354 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
| 1355 | DBusConnection *connection; |
| 1356 | DBusMessage *dmessage; |
| 1357 | DBusMessageIter iter; |
| 1358 | unsigned int dtype; |
| 1359 | int i; |
| 1360 | char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH]; |
| 1361 | |
| 1362 | /* Check parameters. */ |
| 1363 | bus = args[0]; |
| 1364 | service = args[1]; |
| 1365 | path = args[2]; |
| 1366 | interface = args[3]; |
| 1367 | signal = args[4]; |
| 1368 | |
| 1369 | CHECK_SYMBOL (bus); |
| 1370 | CHECK_STRING (service); |
| 1371 | CHECK_STRING (path); |
| 1372 | CHECK_STRING (interface); |
| 1373 | CHECK_STRING (signal); |
| 1374 | GCPRO5 (bus, service, path, interface, signal); |
| 1375 | |
| 1376 | XD_DEBUG_MESSAGE ("%s %s %s %s", |
| 1377 | SDATA (service), |
| 1378 | SDATA (path), |
| 1379 | SDATA (interface), |
| 1380 | SDATA (signal)); |
| 1381 | |
| 1382 | /* Open a connection to the bus. */ |
| 1383 | connection = xd_initialize (bus); |
| 1384 | |
| 1385 | /* Create the message. */ |
| 1386 | dmessage = dbus_message_new_signal (SDATA (path), |
| 1387 | SDATA (interface), |
| 1388 | SDATA (signal)); |
| 1389 | UNGCPRO; |
| 1390 | if (dmessage == NULL) |
| 1391 | XD_SIGNAL1 (build_string ("Unable to create a new message")); |
| 1392 | |
| 1393 | /* Initialize parameter list of message. */ |
| 1394 | dbus_message_iter_init_append (dmessage, &iter); |
| 1395 | |
| 1396 | /* Append parameters to the message. */ |
| 1397 | for (i = 5; i < nargs; ++i) |
| 1398 | { |
| 1399 | dtype = XD_OBJECT_TO_DBUS_TYPE (args[i]); |
| 1400 | if (XD_DBUS_TYPE_P (args[i])) |
| 1401 | { |
| 1402 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 1403 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]); |
| 1404 | XD_DEBUG_MESSAGE ("Parameter%d %s %s", i-4, |
| 1405 | SDATA (format2 ("%s", args[i], Qnil)), |
| 1406 | SDATA (format2 ("%s", args[i+1], Qnil))); |
| 1407 | ++i; |
| 1408 | } |
| 1409 | else |
| 1410 | { |
| 1411 | XD_DEBUG_VALID_LISP_OBJECT_P (args[i]); |
| 1412 | XD_DEBUG_MESSAGE ("Parameter%d %s", i-4, |
| 1413 | SDATA (format2 ("%s", args[i], Qnil))); |
| 1414 | } |
| 1415 | |
| 1416 | /* Check for valid signature. We use DBUS_TYPE_INVALID as |
| 1417 | indication that there is no parent type. */ |
| 1418 | xd_signature (signature, dtype, DBUS_TYPE_INVALID, args[i]); |
| 1419 | |
| 1420 | xd_append_arg (dtype, args[i], &iter); |
| 1421 | } |
| 1422 | |
| 1423 | /* Send the message. The message is just added to the outgoing |
| 1424 | message queue. */ |
| 1425 | if (!dbus_connection_send (connection, dmessage, NULL)) |
| 1426 | XD_SIGNAL1 (build_string ("Cannot send message")); |
| 1427 | |
| 1428 | /* Flush connection to ensure the message is handled. */ |
| 1429 | dbus_connection_flush (connection); |
| 1430 | |
| 1431 | XD_DEBUG_MESSAGE ("Signal sent"); |
| 1432 | |
| 1433 | /* Cleanup. */ |
| 1434 | dbus_message_unref (dmessage); |
| 1435 | |
| 1436 | /* Return. */ |
| 1437 | return Qt; |
| 1438 | } |
| 1439 | |
| 1440 | /* Check, whether there is pending input in the message queue of the |
| 1441 | D-Bus BUS. BUS is a Lisp symbol, either :system or :session. */ |
| 1442 | int |
| 1443 | xd_get_dispatch_status (bus) |
| 1444 | Lisp_Object bus; |
| 1445 | { |
| 1446 | DBusConnection *connection; |
| 1447 | |
| 1448 | /* Open a connection to the bus. */ |
| 1449 | connection = xd_initialize (bus); |
| 1450 | |
| 1451 | /* Non blocking read of the next available message. */ |
| 1452 | dbus_connection_read_write (connection, 0); |
| 1453 | |
| 1454 | /* Return. */ |
| 1455 | return |
| 1456 | (dbus_connection_get_dispatch_status (connection) |
| 1457 | == DBUS_DISPATCH_DATA_REMAINS) |
| 1458 | ? TRUE : FALSE; |
| 1459 | } |
| 1460 | |
| 1461 | /* Check for queued incoming messages from the system and session buses. */ |
| 1462 | int |
| 1463 | xd_pending_messages () |
| 1464 | { |
| 1465 | |
| 1466 | /* Vdbus_registered_functions_table will be initialized as hash |
| 1467 | table in dbus.el. When this package isn't loaded yet, it doesn't |
| 1468 | make sense to handle D-Bus messages. */ |
| 1469 | return (HASH_TABLE_P (Vdbus_registered_functions_table) |
| 1470 | ? ((xd_get_dispatch_status (QCdbus_system_bus) |
| 1471 | || (xd_get_dispatch_status (QCdbus_session_bus)))) |
| 1472 | : FALSE); |
| 1473 | } |
| 1474 | |
| 1475 | /* Read queued incoming message of the D-Bus BUS. BUS is a Lisp |
| 1476 | symbol, either :system or :session. */ |
| 1477 | static Lisp_Object |
| 1478 | xd_read_message (bus) |
| 1479 | Lisp_Object bus; |
| 1480 | { |
| 1481 | Lisp_Object args, key, value; |
| 1482 | struct gcpro gcpro1; |
| 1483 | struct input_event event; |
| 1484 | DBusConnection *connection; |
| 1485 | DBusMessage *dmessage; |
| 1486 | DBusMessageIter iter; |
| 1487 | unsigned int dtype; |
| 1488 | int mtype, serial; |
| 1489 | const char *uname, *path, *interface, *member; |
| 1490 | |
| 1491 | /* Open a connection to the bus. */ |
| 1492 | connection = xd_initialize (bus); |
| 1493 | |
| 1494 | /* Non blocking read of the next available message. */ |
| 1495 | dbus_connection_read_write (connection, 0); |
| 1496 | dmessage = dbus_connection_pop_message (connection); |
| 1497 | |
| 1498 | /* Return if there is no queued message. */ |
| 1499 | if (dmessage == NULL) |
| 1500 | return Qnil; |
| 1501 | |
| 1502 | /* Collect the parameters. */ |
| 1503 | args = Qnil; |
| 1504 | GCPRO1 (args); |
| 1505 | |
| 1506 | /* Loop over the resulting parameters. Construct a list. */ |
| 1507 | if (dbus_message_iter_init (dmessage, &iter)) |
| 1508 | { |
| 1509 | while ((dtype = dbus_message_iter_get_arg_type (&iter)) |
| 1510 | != DBUS_TYPE_INVALID) |
| 1511 | { |
| 1512 | args = Fcons (xd_retrieve_arg (dtype, &iter), args); |
| 1513 | dbus_message_iter_next (&iter); |
| 1514 | } |
| 1515 | /* The arguments are stored in reverse order. Reorder them. */ |
| 1516 | args = Fnreverse (args); |
| 1517 | } |
| 1518 | |
| 1519 | /* Read message type, message serial, unique name, object path, |
| 1520 | interface and member from the message. */ |
| 1521 | mtype = dbus_message_get_type (dmessage); |
| 1522 | serial = |
| 1523 | ((mtype == DBUS_MESSAGE_TYPE_METHOD_RETURN) |
| 1524 | || (mtype == DBUS_MESSAGE_TYPE_ERROR)) |
| 1525 | ? dbus_message_get_reply_serial (dmessage) |
| 1526 | : dbus_message_get_serial (dmessage); |
| 1527 | uname = dbus_message_get_sender (dmessage); |
| 1528 | path = dbus_message_get_path (dmessage); |
| 1529 | interface = dbus_message_get_interface (dmessage); |
| 1530 | member = dbus_message_get_member (dmessage); |
| 1531 | |
| 1532 | XD_DEBUG_MESSAGE ("Event received: %s %d %s %s %s %s %s", |
| 1533 | (mtype == DBUS_MESSAGE_TYPE_INVALID) |
| 1534 | ? "DBUS_MESSAGE_TYPE_INVALID" |
| 1535 | : (mtype == DBUS_MESSAGE_TYPE_METHOD_CALL) |
| 1536 | ? "DBUS_MESSAGE_TYPE_METHOD_CALL" |
| 1537 | : (mtype == DBUS_MESSAGE_TYPE_METHOD_RETURN) |
| 1538 | ? "DBUS_MESSAGE_TYPE_METHOD_RETURN" |
| 1539 | : (mtype == DBUS_MESSAGE_TYPE_ERROR) |
| 1540 | ? "DBUS_MESSAGE_TYPE_ERROR" |
| 1541 | : "DBUS_MESSAGE_TYPE_SIGNAL", |
| 1542 | serial, uname, path, interface, member, |
| 1543 | SDATA (format2 ("%s", args, Qnil))); |
| 1544 | |
| 1545 | if ((mtype == DBUS_MESSAGE_TYPE_METHOD_RETURN) |
| 1546 | || (mtype == DBUS_MESSAGE_TYPE_ERROR)) |
| 1547 | { |
| 1548 | /* Search for a registered function of the message. */ |
| 1549 | key = list2 (bus, make_number (serial)); |
| 1550 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); |
| 1551 | |
| 1552 | /* There shall be exactly one entry. Construct an event. */ |
| 1553 | if (NILP (value)) |
| 1554 | goto cleanup; |
| 1555 | |
| 1556 | /* Remove the entry. */ |
| 1557 | Fremhash (key, Vdbus_registered_functions_table); |
| 1558 | |
| 1559 | /* Construct an event. */ |
| 1560 | EVENT_INIT (event); |
| 1561 | event.kind = DBUS_EVENT; |
| 1562 | event.frame_or_window = Qnil; |
| 1563 | event.arg = Fcons (value, args); |
| 1564 | } |
| 1565 | |
| 1566 | else /* (mtype != DBUS_MESSAGE_TYPE_METHOD_RETURN) */ |
| 1567 | { |
| 1568 | /* Vdbus_registered_functions_table requires non-nil interface |
| 1569 | and member. */ |
| 1570 | if ((interface == NULL) || (member == NULL)) |
| 1571 | goto cleanup; |
| 1572 | |
| 1573 | /* Search for a registered function of the message. */ |
| 1574 | key = list3 (bus, build_string (interface), build_string (member)); |
| 1575 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); |
| 1576 | |
| 1577 | /* Loop over the registered functions. Construct an event. */ |
| 1578 | while (!NILP (value)) |
| 1579 | { |
| 1580 | key = CAR_SAFE (value); |
| 1581 | /* key has the structure (UNAME SERVICE PATH HANDLER). */ |
| 1582 | if (((uname == NULL) |
| 1583 | || (NILP (CAR_SAFE (key))) |
| 1584 | || (strcmp (uname, SDATA (CAR_SAFE (key))) == 0)) |
| 1585 | && ((path == NULL) |
| 1586 | || (NILP (CAR_SAFE (CDR_SAFE (CDR_SAFE (key))))) |
| 1587 | || (strcmp (path, |
| 1588 | SDATA (CAR_SAFE (CDR_SAFE (CDR_SAFE (key))))) |
| 1589 | == 0)) |
| 1590 | && (!NILP (CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (key))))))) |
| 1591 | { |
| 1592 | EVENT_INIT (event); |
| 1593 | event.kind = DBUS_EVENT; |
| 1594 | event.frame_or_window = Qnil; |
| 1595 | event.arg = Fcons (CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (key)))), |
| 1596 | args); |
| 1597 | break; |
| 1598 | } |
| 1599 | value = CDR_SAFE (value); |
| 1600 | } |
| 1601 | |
| 1602 | if (NILP (value)) |
| 1603 | goto cleanup; |
| 1604 | } |
| 1605 | |
| 1606 | /* Add type, serial, uname, path, interface and member to the event. */ |
| 1607 | event.arg = Fcons ((member == NULL ? Qnil : build_string (member)), |
| 1608 | event.arg); |
| 1609 | event.arg = Fcons ((interface == NULL ? Qnil : build_string (interface)), |
| 1610 | event.arg); |
| 1611 | event.arg = Fcons ((path == NULL ? Qnil : build_string (path)), |
| 1612 | event.arg); |
| 1613 | event.arg = Fcons ((uname == NULL ? Qnil : build_string (uname)), |
| 1614 | event.arg); |
| 1615 | event.arg = Fcons (make_number (serial), event.arg); |
| 1616 | event.arg = Fcons (make_number (mtype), event.arg); |
| 1617 | |
| 1618 | /* Add the bus symbol to the event. */ |
| 1619 | event.arg = Fcons (bus, event.arg); |
| 1620 | |
| 1621 | /* Store it into the input event queue. */ |
| 1622 | kbd_buffer_store_event (&event); |
| 1623 | |
| 1624 | XD_DEBUG_MESSAGE ("Event stored: %s", |
| 1625 | SDATA (format2 ("%s", event.arg, Qnil))); |
| 1626 | |
| 1627 | /* Cleanup. */ |
| 1628 | cleanup: |
| 1629 | dbus_message_unref (dmessage); |
| 1630 | |
| 1631 | RETURN_UNGCPRO (Qnil); |
| 1632 | } |
| 1633 | |
| 1634 | /* Read queued incoming messages from the system and session buses. */ |
| 1635 | void |
| 1636 | xd_read_queued_messages () |
| 1637 | { |
| 1638 | |
| 1639 | /* Vdbus_registered_functions_table will be initialized as hash |
| 1640 | table in dbus.el. When this package isn't loaded yet, it doesn't |
| 1641 | make sense to handle D-Bus messages. Furthermore, we ignore all |
| 1642 | Lisp errors during the call. */ |
| 1643 | if (HASH_TABLE_P (Vdbus_registered_functions_table)) |
| 1644 | { |
| 1645 | xd_in_read_queued_messages = 1; |
| 1646 | internal_catch (Qdbus_error, xd_read_message, QCdbus_system_bus); |
| 1647 | internal_catch (Qdbus_error, xd_read_message, QCdbus_session_bus); |
| 1648 | xd_in_read_queued_messages = 0; |
| 1649 | } |
| 1650 | } |
| 1651 | |
| 1652 | DEFUN ("dbus-register-signal", Fdbus_register_signal, Sdbus_register_signal, |
| 1653 | 6, MANY, 0, |
| 1654 | doc: /* Register for signal SIGNAL on the D-Bus BUS. |
| 1655 | |
| 1656 | BUS is either the symbol `:system' or the symbol `:session'. |
| 1657 | |
| 1658 | SERVICE is the D-Bus service name used by the sending D-Bus object. |
| 1659 | It can be either a known name or the unique name of the D-Bus object |
| 1660 | sending the signal. When SERVICE is nil, related signals from all |
| 1661 | D-Bus objects shall be accepted. |
| 1662 | |
| 1663 | PATH is the D-Bus object path SERVICE is registered. It can also be |
| 1664 | nil if the path name of incoming signals shall not be checked. |
| 1665 | |
| 1666 | INTERFACE is an interface offered by SERVICE. It must provide SIGNAL. |
| 1667 | HANDLER is a Lisp function to be called when the signal is received. |
| 1668 | It must accept as arguments the values SIGNAL is sending. |
| 1669 | |
| 1670 | All other arguments ARGS, if specified, must be strings. They stand |
| 1671 | for the respective arguments of the signal in their order, and are |
| 1672 | used for filtering as well. A nil argument might be used to preserve |
| 1673 | the order. |
| 1674 | |
| 1675 | INTERFACE, SIGNAL and HANDLER must not be nil. Example: |
| 1676 | |
| 1677 | \(defun my-signal-handler (device) |
| 1678 | (message "Device %s added" device)) |
| 1679 | |
| 1680 | \(dbus-register-signal |
| 1681 | :system "org.freedesktop.Hal" "/org/freedesktop/Hal/Manager" |
| 1682 | "org.freedesktop.Hal.Manager" "DeviceAdded" 'my-signal-handler) |
| 1683 | |
| 1684 | => ((:system "org.freedesktop.Hal.Manager" "DeviceAdded") |
| 1685 | ("org.freedesktop.Hal" "/org/freedesktop/Hal/Manager" my-signal-handler)) |
| 1686 | |
| 1687 | `dbus-register-signal' returns an object, which can be used in |
| 1688 | `dbus-unregister-object' for removing the registration. |
| 1689 | |
| 1690 | usage: (dbus-register-signal BUS SERVICE PATH INTERFACE SIGNAL HANDLER &rest ARGS) */) |
| 1691 | (nargs, args) |
| 1692 | int nargs; |
| 1693 | register Lisp_Object *args; |
| 1694 | { |
| 1695 | Lisp_Object bus, service, path, interface, signal, handler; |
| 1696 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6; |
| 1697 | Lisp_Object uname, key, key1, value; |
| 1698 | DBusConnection *connection; |
| 1699 | int i; |
| 1700 | char rule[DBUS_MAXIMUM_MATCH_RULE_LENGTH]; |
| 1701 | char x[DBUS_MAXIMUM_MATCH_RULE_LENGTH]; |
| 1702 | DBusError derror; |
| 1703 | |
| 1704 | /* Check parameters. */ |
| 1705 | bus = args[0]; |
| 1706 | service = args[1]; |
| 1707 | path = args[2]; |
| 1708 | interface = args[3]; |
| 1709 | signal = args[4]; |
| 1710 | handler = args[5]; |
| 1711 | |
| 1712 | CHECK_SYMBOL (bus); |
| 1713 | if (!NILP (service)) CHECK_STRING (service); |
| 1714 | if (!NILP (path)) CHECK_STRING (path); |
| 1715 | CHECK_STRING (interface); |
| 1716 | CHECK_STRING (signal); |
| 1717 | if (!FUNCTIONP (handler)) |
| 1718 | wrong_type_argument (intern ("functionp"), handler); |
| 1719 | GCPRO6 (bus, service, path, interface, signal, handler); |
| 1720 | |
| 1721 | /* Retrieve unique name of service. If service is a known name, we |
| 1722 | will register for the corresponding unique name, if any. Signals |
| 1723 | are sent always with the unique name as sender. Note: the unique |
| 1724 | name of "org.freedesktop.DBus" is that string itself. */ |
| 1725 | if ((STRINGP (service)) |
| 1726 | && (SBYTES (service) > 0) |
| 1727 | && (strcmp (SDATA (service), DBUS_SERVICE_DBUS) != 0) |
| 1728 | && (strncmp (SDATA (service), ":", 1) != 0)) |
| 1729 | { |
| 1730 | uname = call2 (intern ("dbus-get-name-owner"), bus, service); |
| 1731 | /* When there is no unique name, we mark it with an empty |
| 1732 | string. */ |
| 1733 | if (NILP (uname)) |
| 1734 | uname = empty_unibyte_string; |
| 1735 | } |
| 1736 | else |
| 1737 | uname = service; |
| 1738 | |
| 1739 | /* Create a matching rule if the unique name exists (when no |
| 1740 | wildcard). */ |
| 1741 | if (NILP (uname) || (SBYTES (uname) > 0)) |
| 1742 | { |
| 1743 | /* Open a connection to the bus. */ |
| 1744 | connection = xd_initialize (bus); |
| 1745 | |
| 1746 | /* Create a rule to receive related signals. */ |
| 1747 | sprintf (rule, |
| 1748 | "type='signal',interface='%s',member='%s'", |
| 1749 | SDATA (interface), |
| 1750 | SDATA (signal)); |
| 1751 | |
| 1752 | /* Add unique name and path to the rule if they are non-nil. */ |
| 1753 | if (!NILP (uname)) |
| 1754 | { |
| 1755 | sprintf (x, ",sender='%s'", SDATA (uname)); |
| 1756 | strcat (rule, x); |
| 1757 | } |
| 1758 | |
| 1759 | if (!NILP (path)) |
| 1760 | { |
| 1761 | sprintf (x, ",path='%s'", SDATA (path)); |
| 1762 | strcat (rule, x); |
| 1763 | } |
| 1764 | |
| 1765 | /* Add arguments to the rule if they are non-nil. */ |
| 1766 | for (i = 6; i < nargs; ++i) |
| 1767 | if (!NILP (args[i])) |
| 1768 | { |
| 1769 | CHECK_STRING (args[i]); |
| 1770 | sprintf (x, ",arg%d='%s'", i-6, SDATA (args[i])); |
| 1771 | strcat (rule, x); |
| 1772 | } |
| 1773 | |
| 1774 | /* Add the rule to the bus. */ |
| 1775 | dbus_error_init (&derror); |
| 1776 | dbus_bus_add_match (connection, rule, &derror); |
| 1777 | if (dbus_error_is_set (&derror)) |
| 1778 | { |
| 1779 | UNGCPRO; |
| 1780 | XD_ERROR (derror); |
| 1781 | } |
| 1782 | |
| 1783 | /* Cleanup. */ |
| 1784 | dbus_error_free (&derror); |
| 1785 | |
| 1786 | XD_DEBUG_MESSAGE ("Matching rule \"%s\" created", rule); |
| 1787 | } |
| 1788 | |
| 1789 | /* Create a hash table entry. */ |
| 1790 | key = list3 (bus, interface, signal); |
| 1791 | key1 = list4 (uname, service, path, handler); |
| 1792 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); |
| 1793 | |
| 1794 | if (NILP (Fmember (key1, value))) |
| 1795 | Fputhash (key, Fcons (key1, value), Vdbus_registered_functions_table); |
| 1796 | |
| 1797 | /* Return object. */ |
| 1798 | RETURN_UNGCPRO (list2 (key, list3 (service, path, handler))); |
| 1799 | } |
| 1800 | |
| 1801 | DEFUN ("dbus-register-method", Fdbus_register_method, Sdbus_register_method, |
| 1802 | 6, 6, 0, |
| 1803 | doc: /* Register for method METHOD on the D-Bus BUS. |
| 1804 | |
| 1805 | BUS is either the symbol `:system' or the symbol `:session'. |
| 1806 | |
| 1807 | SERVICE is the D-Bus service name of the D-Bus object METHOD is |
| 1808 | registered for. It must be a known name. |
| 1809 | |
| 1810 | PATH is the D-Bus object path SERVICE is registered. INTERFACE is the |
| 1811 | interface offered by SERVICE. It must provide METHOD. HANDLER is a |
| 1812 | Lisp function to be called when a method call is received. It must |
| 1813 | accept the input arguments of METHOD. The return value of HANDLER is |
| 1814 | used for composing the returning D-Bus message. */) |
| 1815 | (bus, service, path, interface, method, handler) |
| 1816 | Lisp_Object bus, service, path, interface, method, handler; |
| 1817 | { |
| 1818 | Lisp_Object key, key1, value; |
| 1819 | DBusConnection *connection; |
| 1820 | int result; |
| 1821 | DBusError derror; |
| 1822 | |
| 1823 | /* Check parameters. */ |
| 1824 | CHECK_SYMBOL (bus); |
| 1825 | CHECK_STRING (service); |
| 1826 | CHECK_STRING (path); |
| 1827 | CHECK_STRING (interface); |
| 1828 | CHECK_STRING (method); |
| 1829 | if (!FUNCTIONP (handler)) |
| 1830 | wrong_type_argument (intern ("functionp"), handler); |
| 1831 | /* TODO: We must check for a valid service name, otherwise there is |
| 1832 | a segmentation fault. */ |
| 1833 | |
| 1834 | /* Open a connection to the bus. */ |
| 1835 | connection = xd_initialize (bus); |
| 1836 | |
| 1837 | /* Request the known name from the bus. We can ignore the result, |
| 1838 | it is set to -1 if there is an error - kind of redundancy. */ |
| 1839 | dbus_error_init (&derror); |
| 1840 | result = dbus_bus_request_name (connection, SDATA (service), 0, &derror); |
| 1841 | if (dbus_error_is_set (&derror)) |
| 1842 | XD_ERROR (derror); |
| 1843 | |
| 1844 | /* Create a hash table entry. */ |
| 1845 | key = list3 (bus, interface, method); |
| 1846 | key1 = list4 (Qnil, service, path, handler); |
| 1847 | value = Fgethash (key, Vdbus_registered_functions_table, Qnil); |
| 1848 | |
| 1849 | /* We use nil for the unique name, because the method might be |
| 1850 | called from everybody. */ |
| 1851 | if (NILP (Fmember (key1, value))) |
| 1852 | Fputhash (key, Fcons (key1, value), Vdbus_registered_functions_table); |
| 1853 | |
| 1854 | /* Cleanup. */ |
| 1855 | dbus_error_free (&derror); |
| 1856 | |
| 1857 | /* Return object. */ |
| 1858 | return list2 (key, list3 (service, path, handler)); |
| 1859 | } |
| 1860 | |
| 1861 | \f |
| 1862 | void |
| 1863 | syms_of_dbusbind () |
| 1864 | { |
| 1865 | |
| 1866 | Qdbus_get_unique_name = intern ("dbus-get-unique-name"); |
| 1867 | staticpro (&Qdbus_get_unique_name); |
| 1868 | defsubr (&Sdbus_get_unique_name); |
| 1869 | |
| 1870 | Qdbus_call_method = intern ("dbus-call-method"); |
| 1871 | staticpro (&Qdbus_call_method); |
| 1872 | defsubr (&Sdbus_call_method); |
| 1873 | |
| 1874 | Qdbus_call_method_asynchronously = intern ("dbus-call-method-asynchronously"); |
| 1875 | staticpro (&Qdbus_call_method_asynchronously); |
| 1876 | defsubr (&Sdbus_call_method_asynchronously); |
| 1877 | |
| 1878 | Qdbus_method_return_internal = intern ("dbus-method-return-internal"); |
| 1879 | staticpro (&Qdbus_method_return_internal); |
| 1880 | defsubr (&Sdbus_method_return_internal); |
| 1881 | |
| 1882 | Qdbus_method_error_internal = intern ("dbus-method-error-internal"); |
| 1883 | staticpro (&Qdbus_method_error_internal); |
| 1884 | defsubr (&Sdbus_method_error_internal); |
| 1885 | |
| 1886 | Qdbus_send_signal = intern ("dbus-send-signal"); |
| 1887 | staticpro (&Qdbus_send_signal); |
| 1888 | defsubr (&Sdbus_send_signal); |
| 1889 | |
| 1890 | Qdbus_register_signal = intern ("dbus-register-signal"); |
| 1891 | staticpro (&Qdbus_register_signal); |
| 1892 | defsubr (&Sdbus_register_signal); |
| 1893 | |
| 1894 | Qdbus_register_method = intern ("dbus-register-method"); |
| 1895 | staticpro (&Qdbus_register_method); |
| 1896 | defsubr (&Sdbus_register_method); |
| 1897 | |
| 1898 | Qdbus_error = intern ("dbus-error"); |
| 1899 | staticpro (&Qdbus_error); |
| 1900 | Fput (Qdbus_error, Qerror_conditions, |
| 1901 | list2 (Qdbus_error, Qerror)); |
| 1902 | Fput (Qdbus_error, Qerror_message, |
| 1903 | build_string ("D-Bus error")); |
| 1904 | |
| 1905 | QCdbus_system_bus = intern (":system"); |
| 1906 | staticpro (&QCdbus_system_bus); |
| 1907 | |
| 1908 | QCdbus_session_bus = intern (":session"); |
| 1909 | staticpro (&QCdbus_session_bus); |
| 1910 | |
| 1911 | QCdbus_timeout = intern (":timeout"); |
| 1912 | staticpro (&QCdbus_timeout); |
| 1913 | |
| 1914 | QCdbus_type_byte = intern (":byte"); |
| 1915 | staticpro (&QCdbus_type_byte); |
| 1916 | |
| 1917 | QCdbus_type_boolean = intern (":boolean"); |
| 1918 | staticpro (&QCdbus_type_boolean); |
| 1919 | |
| 1920 | QCdbus_type_int16 = intern (":int16"); |
| 1921 | staticpro (&QCdbus_type_int16); |
| 1922 | |
| 1923 | QCdbus_type_uint16 = intern (":uint16"); |
| 1924 | staticpro (&QCdbus_type_uint16); |
| 1925 | |
| 1926 | QCdbus_type_int32 = intern (":int32"); |
| 1927 | staticpro (&QCdbus_type_int32); |
| 1928 | |
| 1929 | QCdbus_type_uint32 = intern (":uint32"); |
| 1930 | staticpro (&QCdbus_type_uint32); |
| 1931 | |
| 1932 | QCdbus_type_int64 = intern (":int64"); |
| 1933 | staticpro (&QCdbus_type_int64); |
| 1934 | |
| 1935 | QCdbus_type_uint64 = intern (":uint64"); |
| 1936 | staticpro (&QCdbus_type_uint64); |
| 1937 | |
| 1938 | QCdbus_type_double = intern (":double"); |
| 1939 | staticpro (&QCdbus_type_double); |
| 1940 | |
| 1941 | QCdbus_type_string = intern (":string"); |
| 1942 | staticpro (&QCdbus_type_string); |
| 1943 | |
| 1944 | QCdbus_type_object_path = intern (":object-path"); |
| 1945 | staticpro (&QCdbus_type_object_path); |
| 1946 | |
| 1947 | QCdbus_type_signature = intern (":signature"); |
| 1948 | staticpro (&QCdbus_type_signature); |
| 1949 | |
| 1950 | QCdbus_type_array = intern (":array"); |
| 1951 | staticpro (&QCdbus_type_array); |
| 1952 | |
| 1953 | QCdbus_type_variant = intern (":variant"); |
| 1954 | staticpro (&QCdbus_type_variant); |
| 1955 | |
| 1956 | QCdbus_type_struct = intern (":struct"); |
| 1957 | staticpro (&QCdbus_type_struct); |
| 1958 | |
| 1959 | QCdbus_type_dict_entry = intern (":dict-entry"); |
| 1960 | staticpro (&QCdbus_type_dict_entry); |
| 1961 | |
| 1962 | DEFVAR_LISP ("dbus-registered-functions-table", |
| 1963 | &Vdbus_registered_functions_table, |
| 1964 | doc: /* Hash table of registered functions for D-Bus. |
| 1965 | There are two different uses of the hash table: for calling registered |
| 1966 | functions, targeted by signals or method calls, and for calling |
| 1967 | handlers in case of non-blocking method call returns. |
| 1968 | |
| 1969 | In the first case, the key in the hash table is the list (BUS |
| 1970 | INTERFACE MEMBER). BUS is either the symbol `:system' or the symbol |
| 1971 | `:session'. INTERFACE is a string which denotes a D-Bus interface, |
| 1972 | and MEMBER, also a string, is either a method or a signal INTERFACE is |
| 1973 | offering. All arguments but BUS must not be nil. |
| 1974 | |
| 1975 | The value in the hash table is a list of quadruple lists |
| 1976 | \((UNAME SERVICE PATH HANDLER) (UNAME SERVICE PATH HANDLER) ...). |
| 1977 | SERVICE is the service name as registered, UNAME is the corresponding |
| 1978 | unique name. PATH is the object path of the sending object. All of |
| 1979 | them can be nil, which means a wildcard then. HANDLER is the function |
| 1980 | to be called when a D-Bus message, which matches the key criteria, |
| 1981 | arrives. |
| 1982 | |
| 1983 | In the second case, the key in the hash table is the list (BUS SERIAL). |
| 1984 | BUS is either the symbol `:system' or the symbol `:session'. SERIAL |
| 1985 | is the serial number of the non-blocking method call, a reply is |
| 1986 | expected. Both arguments must not be nil. The value in the hash |
| 1987 | table is HANDLER, the function to be called when the D-Bus reply |
| 1988 | message arrives. */); |
| 1989 | /* We initialize Vdbus_registered_functions_table in dbus.el, |
| 1990 | because we need to define a hash table function first. */ |
| 1991 | Vdbus_registered_functions_table = Qnil; |
| 1992 | |
| 1993 | DEFVAR_LISP ("dbus-debug", &Vdbus_debug, |
| 1994 | doc: /* If non-nil, debug messages of D-Bus bindings are raised. */); |
| 1995 | #ifdef DBUS_DEBUG |
| 1996 | Vdbus_debug = Qt; |
| 1997 | #else |
| 1998 | Vdbus_debug = Qnil; |
| 1999 | #endif |
| 2000 | |
| 2001 | Fprovide (intern ("dbusbind"), Qnil); |
| 2002 | |
| 2003 | } |
| 2004 | |
| 2005 | #endif /* HAVE_DBUS */ |
| 2006 | |
| 2007 | /* arch-tag: 0e828477-b571-4fe4-b559-5c9211bc14b8 |
| 2008 | (do not change this comment) */ |