src/systemd/sd-bus-vtable.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #ifndef foosdbusvtablehfoo
   3 #define foosdbusvtablehfoo
   4
   5 /***
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <https://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include "_sd-common.h"
  21
  22 _SD_BEGIN_DECLARATIONS;
  23
  24 typedef struct sd_bus_vtable sd_bus_vtable;
  25
  26 #include "sd-bus.h"
  27
  28 enum {
  29         _SD_BUS_VTABLE_START             = '<',
  30         _SD_BUS_VTABLE_END               = '>',
  31         _SD_BUS_VTABLE_METHOD            = 'M',
  32         _SD_BUS_VTABLE_SIGNAL            = 'S',
  33         _SD_BUS_VTABLE_PROPERTY          = 'P',
  34         _SD_BUS_VTABLE_WRITABLE_PROPERTY = 'W'
  35 };
  36
  37 __extension__ enum {
  38         SD_BUS_VTABLE_DEPRECATED                   = 1ULL << 0,
  39         SD_BUS_VTABLE_HIDDEN                       = 1ULL << 1,
  40         SD_BUS_VTABLE_UNPRIVILEGED                 = 1ULL << 2,
  41         SD_BUS_VTABLE_METHOD_NO_REPLY              = 1ULL << 3,
  42         SD_BUS_VTABLE_PROPERTY_CONST               = 1ULL << 4,
  43         SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE        = 1ULL << 5,
  44         SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION  = 1ULL << 6,
  45         SD_BUS_VTABLE_PROPERTY_EXPLICIT            = 1ULL << 7,
  46         SD_BUS_VTABLE_SENSITIVE                    = 1ULL << 8, /* covers both directions: method call + reply */
  47         SD_BUS_VTABLE_ABSOLUTE_OFFSET              = 1ULL << 9,
  48         _SD_BUS_VTABLE_CAPABILITY_MASK             = 0xFFFFULL << 40
  49 };
  50
  51 #define SD_BUS_VTABLE_CAPABILITY(x) ((uint64_t) (((x)+1) & 0xFFFF) << 40)
  52
  53 enum {
  54         _SD_BUS_VTABLE_PARAM_NAMES     = 1 << 0
  55 };
  56
  57 extern const unsigned sd_bus_object_vtable_format;
  58
  59 /* Note: unused areas in the sd_bus_vtable[] array must be initialized to 0. The structure contains an embedded
  60  * union, and the compiler is NOT required to initialize the unused areas of the union when the rest of the
  61  * structure is initialized. Normally the array is defined as read-only data, in which case the linker places
  62  * it in the BSS section, which is always fully initialized, so this is not a concern. But if the array is
  63  * created on the stack or on the heap, care must be taken to initialize the unused areas, for examply by
  64  * first memsetting the whole region to zero before filling the data in. */
  65
  66 struct sd_bus_vtable {
  67         /* Please do not initialize this structure directly, use the
  68          * macros below instead */
  69
  70         __extension__ uint8_t type:8;
  71         __extension__ uint64_t flags:56;
  72         union {
  73                 struct {
  74                         size_t element_size;
  75                         uint64_t features;
  76                         const unsigned *vtable_format_reference;
  77                 } start;
  78                 struct {
  79                         /* This field exists only to make sure we have something to initialize in
  80                          * SD_BUS_VTABLE_END in a way that is both compatible with pedantic versions of C and
  81                          * C++. It's unused otherwise. */
  82                         size_t _reserved;
  83                 } end;
  84                 struct {
  85                         const char *member;
  86                         const char *signature;
  87                         const char *result;
  88                         sd_bus_message_handler_t handler;
  89                         size_t offset;
  90                         const char *names;
  91                 } method;
  92                 struct {
  93                         const char *member;
  94                         const char *signature;
  95                         const char *names;
  96                 } signal;
  97                 struct {
  98                         const char *member;
  99                         const char *signature;
 100                         sd_bus_property_get_t get;
 101                         sd_bus_property_set_t set;
 102                         size_t offset;
 103                 } property;
 104         } x;
 105 };
 106
 107 #define SD_BUS_VTABLE_START(_flags)                                     \
 108         {                                                               \
 109                 .type = _SD_BUS_VTABLE_START,                           \
 110                 .flags = _flags,                                        \
 111                 .x = {                                                  \
 112                         .start = {                                      \
 113                                 .element_size = sizeof(sd_bus_vtable),  \
 114                                 .features = _SD_BUS_VTABLE_PARAM_NAMES, \
 115                                 .vtable_format_reference = &sd_bus_object_vtable_format, \
 116                         },                                              \
 117                 },                                                      \
 118         }
 119
 120 /* helper macro to format method and signal parameters, one at a time */
 121 #define SD_BUS_PARAM(x) #x "\0"
 122
 123 #define SD_BUS_METHOD_WITH_NAMES_OFFSET(_member, _signature, _in_names, _result, _out_names, _handler, _offset, _flags)  \
 124         {                                                               \
 125                 .type = _SD_BUS_VTABLE_METHOD,                          \
 126                 .flags = _flags,                                        \
 127                 .x = {                                                  \
 128                         .method = {                                     \
 129                                 .member = _member,                      \
 130                                 .signature = _signature,                \
 131                                 .result = _result,                      \
 132                                 .handler = _handler,                    \
 133                                 .offset = _offset,                      \
 134                                 .names = _in_names _out_names,          \
 135                         },                                              \
 136                 },                                                      \
 137         }
 138 #define SD_BUS_METHOD_WITH_OFFSET(_member, _signature, _result, _handler, _offset, _flags)   \
 139         SD_BUS_METHOD_WITH_NAMES_OFFSET(_member, _signature, "", _result, "", _handler, _offset, _flags)
 140 #define SD_BUS_METHOD_WITH_NAMES(_member, _signature, _in_names, _result, _out_names, _handler, _flags)   \
 141         SD_BUS_METHOD_WITH_NAMES_OFFSET(_member, _signature, _in_names, _result, _out_names, _handler, 0, _flags)
 142 #define SD_BUS_METHOD(_member, _signature, _result, _handler, _flags)   \
 143         SD_BUS_METHOD_WITH_NAMES_OFFSET(_member, _signature, "", _result, "", _handler, 0, _flags)
 144
 145 #define SD_BUS_SIGNAL_WITH_NAMES(_member, _signature, _out_names, _flags)                      \
 146         {                                                               \
 147                 .type = _SD_BUS_VTABLE_SIGNAL,                          \
 148                 .flags = _flags,                                        \
 149                 .x = {                                                  \
 150                         .signal = {                                     \
 151                                 .member = _member,                      \
 152                                 .signature = _signature,                \
 153                                 .names = _out_names,                    \
 154                         },                                              \
 155                 },                                                      \
 156                         }
 157 #define SD_BUS_SIGNAL(_member, _signature, _flags)                      \
 158         SD_BUS_SIGNAL_WITH_NAMES(_member, _signature, "", _flags)
 159
 160 #define SD_BUS_PROPERTY(_member, _signature, _get, _offset, _flags)     \
 161         {                                                               \
 162                 .type = _SD_BUS_VTABLE_PROPERTY,                        \
 163                 .flags = _flags,                                        \
 164                 .x = {                                                  \
 165                         .property = {                                   \
 166                                 .member = _member,                      \
 167                                 .signature = _signature,                \
 168                                 .get = _get,                            \
 169                                 .set = NULL,                            \
 170                                 .offset = _offset,                      \
 171                         },                                              \
 172                 },                                                      \
 173         }
 174
 175 #define SD_BUS_WRITABLE_PROPERTY(_member, _signature, _get, _set, _offset, _flags) \
 176         {                                                               \
 177                 .type = _SD_BUS_VTABLE_WRITABLE_PROPERTY,               \
 178                 .flags = _flags,                                        \
 179                 .x = {                                                  \
 180                         .property = {                                   \
 181                                 .member = _member,                      \
 182                                 .signature = _signature,                \
 183                                 .get = _get,                            \
 184                                 .set = _set,                            \
 185                                 .offset = _offset,                      \
 186                         },                                              \
 187                 },                                                      \
 188         }
 189
 190 #define SD_BUS_VTABLE_END                                               \
 191         {                                                               \
 192                 .type = _SD_BUS_VTABLE_END,                             \
 193                 .flags = 0,                                             \
 194                 .x = {                                                  \
 195                         .end = {                                        \
 196                                 ._reserved = 0,                         \
 197                         },                                              \
 198                 },                                                      \
 199         }
 200
 201 #define _SD_ECHO(X) X
 202 #define _SD_CONCAT(X) #X "\0"
 203
 204 #define _SD_VARARGS_FOREACH_SEQ(_01, _02, _03, _04, _05, _06, _07, _08, _09, _10, \
 205                                 _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, \
 206                                 _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, \
 207                                 _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, \
 208                                 _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, \
 209                                 NAME, ...) NAME
 210
 211 #define _SD_VARARGS_FOREACH_EVEN_01(FN, X)         FN(X)
 212 #define _SD_VARARGS_FOREACH_EVEN_02(FN, X, Y)      FN(X)
 213 #define _SD_VARARGS_FOREACH_EVEN_04(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_02(FN, __VA_ARGS__)
 214 #define _SD_VARARGS_FOREACH_EVEN_06(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_04(FN, __VA_ARGS__)
 215 #define _SD_VARARGS_FOREACH_EVEN_08(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_06(FN, __VA_ARGS__)
 216 #define _SD_VARARGS_FOREACH_EVEN_10(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_08(FN, __VA_ARGS__)
 217 #define _SD_VARARGS_FOREACH_EVEN_12(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_10(FN, __VA_ARGS__)
 218 #define _SD_VARARGS_FOREACH_EVEN_14(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_12(FN, __VA_ARGS__)
 219 #define _SD_VARARGS_FOREACH_EVEN_16(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_14(FN, __VA_ARGS__)
 220 #define _SD_VARARGS_FOREACH_EVEN_18(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_16(FN, __VA_ARGS__)
 221 #define _SD_VARARGS_FOREACH_EVEN_20(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_18(FN, __VA_ARGS__)
 222 #define _SD_VARARGS_FOREACH_EVEN_22(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_20(FN, __VA_ARGS__)
 223 #define _SD_VARARGS_FOREACH_EVEN_24(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_22(FN, __VA_ARGS__)
 224 #define _SD_VARARGS_FOREACH_EVEN_26(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_24(FN, __VA_ARGS__)
 225 #define _SD_VARARGS_FOREACH_EVEN_28(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_26(FN, __VA_ARGS__)
 226 #define _SD_VARARGS_FOREACH_EVEN_30(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_28(FN, __VA_ARGS__)
 227 #define _SD_VARARGS_FOREACH_EVEN_32(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_30(FN, __VA_ARGS__)
 228 #define _SD_VARARGS_FOREACH_EVEN_34(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_32(FN, __VA_ARGS__)
 229 #define _SD_VARARGS_FOREACH_EVEN_36(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_34(FN, __VA_ARGS__)
 230 #define _SD_VARARGS_FOREACH_EVEN_38(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_36(FN, __VA_ARGS__)
 231 #define _SD_VARARGS_FOREACH_EVEN_40(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_38(FN, __VA_ARGS__)
 232 #define _SD_VARARGS_FOREACH_EVEN_42(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_40(FN, __VA_ARGS__)
 233 #define _SD_VARARGS_FOREACH_EVEN_44(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_42(FN, __VA_ARGS__)
 234 #define _SD_VARARGS_FOREACH_EVEN_46(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_44(FN, __VA_ARGS__)
 235 #define _SD_VARARGS_FOREACH_EVEN_48(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_46(FN, __VA_ARGS__)
 236 #define _SD_VARARGS_FOREACH_EVEN_50(FN, X, Y, ...) FN(X) _SD_VARARGS_FOREACH_EVEN_48(FN, __VA_ARGS__)
 237
 238 #define _SD_VARARGS_FOREACH_EVEN(FN, ...)                                                 \
 239         _SD_VARARGS_FOREACH_SEQ(__VA_ARGS__,                                              \
 240                                 _SD_VARARGS_FOREACH_EVEN_50, _SD_VARARGS_FOREACH_EVEN_49, \
 241                                 _SD_VARARGS_FOREACH_EVEN_48, _SD_VARARGS_FOREACH_EVEN_47, \
 242                                 _SD_VARARGS_FOREACH_EVEN_46, _SD_VARARGS_FOREACH_EVEN_45, \
 243                                 _SD_VARARGS_FOREACH_EVEN_44, _SD_VARARGS_FOREACH_EVEN_43, \
 244                                 _SD_VARARGS_FOREACH_EVEN_42, _SD_VARARGS_FOREACH_EVEN_41, \
 245                                 _SD_VARARGS_FOREACH_EVEN_40, _SD_VARARGS_FOREACH_EVEN_39, \
 246                                 _SD_VARARGS_FOREACH_EVEN_38, _SD_VARARGS_FOREACH_EVEN_37, \
 247                                 _SD_VARARGS_FOREACH_EVEN_36, _SD_VARARGS_FOREACH_EVEN_35, \
 248                                 _SD_VARARGS_FOREACH_EVEN_34, _SD_VARARGS_FOREACH_EVEN_33, \
 249                                 _SD_VARARGS_FOREACH_EVEN_32, _SD_VARARGS_FOREACH_EVEN_31, \
 250                                 _SD_VARARGS_FOREACH_EVEN_30, _SD_VARARGS_FOREACH_EVEN_29, \
 251                                 _SD_VARARGS_FOREACH_EVEN_28, _SD_VARARGS_FOREACH_EVEN_27, \
 252                                 _SD_VARARGS_FOREACH_EVEN_26, _SD_VARARGS_FOREACH_EVEN_25, \
 253                                 _SD_VARARGS_FOREACH_EVEN_24, _SD_VARARGS_FOREACH_EVEN_23, \
 254                                 _SD_VARARGS_FOREACH_EVEN_22, _SD_VARARGS_FOREACH_EVEN_21, \
 255                                 _SD_VARARGS_FOREACH_EVEN_20, _SD_VARARGS_FOREACH_EVEN_19, \
 256                                 _SD_VARARGS_FOREACH_EVEN_18, _SD_VARARGS_FOREACH_EVEN_17, \
 257                                 _SD_VARARGS_FOREACH_EVEN_16, _SD_VARARGS_FOREACH_EVEN_15, \
 258                                 _SD_VARARGS_FOREACH_EVEN_14, _SD_VARARGS_FOREACH_EVEN_13, \
 259                                 _SD_VARARGS_FOREACH_EVEN_12, _SD_VARARGS_FOREACH_EVEN_11, \
 260                                 _SD_VARARGS_FOREACH_EVEN_10, _SD_VARARGS_FOREACH_EVEN_09, \
 261                                 _SD_VARARGS_FOREACH_EVEN_08, _SD_VARARGS_FOREACH_EVEN_07, \
 262                                 _SD_VARARGS_FOREACH_EVEN_06, _SD_VARARGS_FOREACH_EVEN_05, \
 263                                 _SD_VARARGS_FOREACH_EVEN_04, _SD_VARARGS_FOREACH_EVEN_03, \
 264                                 _SD_VARARGS_FOREACH_EVEN_02, _SD_VARARGS_FOREACH_EVEN_01) \
 265                                 (FN, __VA_ARGS__)
 266
 267 #define _SD_VARARGS_FOREACH_ODD_01(FN, X)
 268 #define _SD_VARARGS_FOREACH_ODD_02(FN, X, Y)      FN(Y)
 269 #define _SD_VARARGS_FOREACH_ODD_04(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_02(FN, __VA_ARGS__)
 270 #define _SD_VARARGS_FOREACH_ODD_06(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_04(FN, __VA_ARGS__)
 271 #define _SD_VARARGS_FOREACH_ODD_08(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_06(FN, __VA_ARGS__)
 272 #define _SD_VARARGS_FOREACH_ODD_10(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_08(FN, __VA_ARGS__)
 273 #define _SD_VARARGS_FOREACH_ODD_12(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_10(FN, __VA_ARGS__)
 274 #define _SD_VARARGS_FOREACH_ODD_14(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_12(FN, __VA_ARGS__)
 275 #define _SD_VARARGS_FOREACH_ODD_16(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_14(FN, __VA_ARGS__)
 276 #define _SD_VARARGS_FOREACH_ODD_18(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_16(FN, __VA_ARGS__)
 277 #define _SD_VARARGS_FOREACH_ODD_20(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_18(FN, __VA_ARGS__)
 278 #define _SD_VARARGS_FOREACH_ODD_22(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_20(FN, __VA_ARGS__)
 279 #define _SD_VARARGS_FOREACH_ODD_24(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_22(FN, __VA_ARGS__)
 280 #define _SD_VARARGS_FOREACH_ODD_26(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_24(FN, __VA_ARGS__)
 281 #define _SD_VARARGS_FOREACH_ODD_28(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_26(FN, __VA_ARGS__)
 282 #define _SD_VARARGS_FOREACH_ODD_30(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_28(FN, __VA_ARGS__)
 283 #define _SD_VARARGS_FOREACH_ODD_32(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_30(FN, __VA_ARGS__)
 284 #define _SD_VARARGS_FOREACH_ODD_34(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_32(FN, __VA_ARGS__)
 285 #define _SD_VARARGS_FOREACH_ODD_36(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_34(FN, __VA_ARGS__)
 286 #define _SD_VARARGS_FOREACH_ODD_38(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_36(FN, __VA_ARGS__)
 287 #define _SD_VARARGS_FOREACH_ODD_40(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_38(FN, __VA_ARGS__)
 288 #define _SD_VARARGS_FOREACH_ODD_42(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_40(FN, __VA_ARGS__)
 289 #define _SD_VARARGS_FOREACH_ODD_44(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_42(FN, __VA_ARGS__)
 290 #define _SD_VARARGS_FOREACH_ODD_46(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_44(FN, __VA_ARGS__)
 291 #define _SD_VARARGS_FOREACH_ODD_48(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_46(FN, __VA_ARGS__)
 292 #define _SD_VARARGS_FOREACH_ODD_50(FN, X, Y, ...) FN(Y) _SD_VARARGS_FOREACH_ODD_48(FN, __VA_ARGS__)
 293
 294 #define _SD_VARARGS_FOREACH_ODD(FN, ...)                                                \
 295         _SD_VARARGS_FOREACH_SEQ(__VA_ARGS__,                                            \
 296                                 _SD_VARARGS_FOREACH_ODD_50, _SD_VARARGS_FOREACH_ODD_49, \
 297                                 _SD_VARARGS_FOREACH_ODD_48, _SD_VARARGS_FOREACH_ODD_47, \
 298                                 _SD_VARARGS_FOREACH_ODD_46, _SD_VARARGS_FOREACH_ODD_45, \
 299                                 _SD_VARARGS_FOREACH_ODD_44, _SD_VARARGS_FOREACH_ODD_43, \
 300                                 _SD_VARARGS_FOREACH_ODD_42, _SD_VARARGS_FOREACH_ODD_41, \
 301                                 _SD_VARARGS_FOREACH_ODD_40, _SD_VARARGS_FOREACH_ODD_39, \
 302                                 _SD_VARARGS_FOREACH_ODD_38, _SD_VARARGS_FOREACH_ODD_37, \
 303                                 _SD_VARARGS_FOREACH_ODD_36, _SD_VARARGS_FOREACH_ODD_35, \
 304                                 _SD_VARARGS_FOREACH_ODD_34, _SD_VARARGS_FOREACH_ODD_33, \
 305                                 _SD_VARARGS_FOREACH_ODD_32, _SD_VARARGS_FOREACH_ODD_31, \
 306                                 _SD_VARARGS_FOREACH_ODD_30, _SD_VARARGS_FOREACH_ODD_29, \
 307                                 _SD_VARARGS_FOREACH_ODD_28, _SD_VARARGS_FOREACH_ODD_27, \
 308                                 _SD_VARARGS_FOREACH_ODD_26, _SD_VARARGS_FOREACH_ODD_25, \
 309                                 _SD_VARARGS_FOREACH_ODD_24, _SD_VARARGS_FOREACH_ODD_23, \
 310                                 _SD_VARARGS_FOREACH_ODD_22, _SD_VARARGS_FOREACH_ODD_21, \
 311                                 _SD_VARARGS_FOREACH_ODD_20, _SD_VARARGS_FOREACH_ODD_19, \
 312                                 _SD_VARARGS_FOREACH_ODD_18, _SD_VARARGS_FOREACH_ODD_17, \
 313                                 _SD_VARARGS_FOREACH_ODD_16, _SD_VARARGS_FOREACH_ODD_15, \
 314                                 _SD_VARARGS_FOREACH_ODD_14, _SD_VARARGS_FOREACH_ODD_13, \
 315                                 _SD_VARARGS_FOREACH_ODD_12, _SD_VARARGS_FOREACH_ODD_11, \
 316                                 _SD_VARARGS_FOREACH_ODD_10, _SD_VARARGS_FOREACH_ODD_09, \
 317                                 _SD_VARARGS_FOREACH_ODD_08, _SD_VARARGS_FOREACH_ODD_07, \
 318                                 _SD_VARARGS_FOREACH_ODD_06, _SD_VARARGS_FOREACH_ODD_05, \
 319                                 _SD_VARARGS_FOREACH_ODD_04, _SD_VARARGS_FOREACH_ODD_03, \
 320                                 _SD_VARARGS_FOREACH_ODD_02, _SD_VARARGS_FOREACH_ODD_01) \
 321                                 (FN, __VA_ARGS__)
 322
 323 #define SD_BUS_ARGS(...) __VA_ARGS__
 324 #define SD_BUS_RESULT(...) __VA_ARGS__
 325
 326 #define SD_BUS_NO_ARGS SD_BUS_ARGS(NULL)
 327 #define SD_BUS_NO_RESULT SD_BUS_RESULT(NULL)
 328
 329 #define SD_BUS_METHOD_WITH_ARGS(_member, _args, _result, _handler, _flags)                 \
 330         SD_BUS_METHOD_WITH_NAMES(_member,                                                  \
 331                                  _SD_VARARGS_FOREACH_EVEN(_SD_ECHO, _args),                \
 332                                  _SD_VARARGS_FOREACH_ODD(_SD_CONCAT, _args),               \
 333                                  _SD_VARARGS_FOREACH_EVEN(_SD_ECHO, _result),              \
 334                                  _SD_VARARGS_FOREACH_ODD(_SD_CONCAT, _result) "\0",        \
 335                                  _handler, _flags)
 336
 337 #define SD_BUS_METHOD_WITH_ARGS_OFFSET(_member, _args, _result, _handler, _offset, _flags) \
 338         SD_BUS_METHOD_WITH_NAMES_OFFSET(_member,                                           \
 339                                         _SD_VARARGS_FOREACH_EVEN(_SD_ECHO, _args),         \
 340                                         _SD_VARARGS_FOREACH_ODD(_SD_CONCAT, _args),        \
 341                                         _SD_VARARGS_FOREACH_EVEN(_SD_ECHO, _result),       \
 342                                         _SD_VARARGS_FOREACH_ODD(_SD_CONCAT, _result) "\0", \
 343                                         _handler, _offset, _flags)
 344
 345 #define SD_BUS_SIGNAL_WITH_ARGS(_member, _args, _flags)                                    \
 346         SD_BUS_SIGNAL_WITH_NAMES(_member,                                                  \
 347                                  _SD_VARARGS_FOREACH_EVEN(_SD_ECHO, _args),                \
 348                                  _SD_VARARGS_FOREACH_ODD(_SD_CONCAT, _args) "\0",          \
 349                                  _flags)
 350
 351 _SD_END_DECLARATIONS;
 352
 353 #endif