src/libelogind/sd-bus/test-bus-vtable.c

   1 #include <stdbool.h>
   2 #include <stddef.h>
   3
   4 /* We use system assert.h here, because we don't want to keep macro.h and log.h C++ compatible */
   5 #undef NDEBUG
   6 #include <assert.h>
   7 #include <errno.h>
   8
   9 #include "sd-bus-vtable.h"
  10
  11 #if 0 /// elogind should support both /run/dbus & /var/run/dbus (per Linux FHS)
  12 #define DEFAULT_BUS_PATH "unix:path=/run/dbus/system_bus_socket"
  13 #else
  14 #if VARRUN_IS_SYMLINK
  15   #define DEFAULT_BUS_PATH "unix:path=/run/dbus/system_bus_socket"
  16 #else
  17   #define DEFAULT_BUS_PATH "unix:path=/var/run/dbus/system_bus_socket"
  18 #endif // VARRUN_IS_SYMLINK
  19 #endif // 0
  20
  21 struct context {
  22         bool quit;
  23         char *something;
  24         char *automatic_string_property;
  25         uint32_t automatic_integer_property;
  26 };
  27
  28 static int handler(sd_bus_message *m, void *userdata, sd_bus_error *error) {
  29         return 1;
  30 }
  31
  32 static int value_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) {
  33         return 1;
  34 }
  35
  36 static int get_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) {
  37         return 1;
  38 }
  39
  40 static int set_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, void *userdata, sd_bus_error *error) {
  41         return 1;
  42 }
  43
  44 static const sd_bus_vtable vtable[] = {
  45         SD_BUS_VTABLE_START(0),
  46         SD_BUS_METHOD("AlterSomething", "s", "s", handler, 0),
  47         SD_BUS_METHOD("Exit", "", "", handler, 0),
  48         SD_BUS_METHOD_WITH_OFFSET("AlterSomething2", "s", "s", handler, 200, 0),
  49         SD_BUS_METHOD_WITH_OFFSET("Exit2", "", "", handler, 200, 0),
  50         SD_BUS_PROPERTY("Value", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  51         SD_BUS_PROPERTY("Value2", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
  52         SD_BUS_PROPERTY("Value3", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_CONST),
  53         SD_BUS_PROPERTY("Value4", "s", value_handler, 10, 0),
  54         SD_BUS_PROPERTY("AnExplicitProperty", "s", NULL, offsetof(struct context, something),
  55                         SD_BUS_VTABLE_PROPERTY_EXPLICIT|SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
  56         SD_BUS_WRITABLE_PROPERTY("Something", "s", get_handler, set_handler, 0, 0),
  57         SD_BUS_WRITABLE_PROPERTY("AutomaticStringProperty", "s", NULL, NULL,
  58                                  offsetof(struct context, automatic_string_property), 0),
  59         SD_BUS_WRITABLE_PROPERTY("AutomaticIntegerProperty", "u", NULL, NULL,
  60                                  offsetof(struct context, automatic_integer_property), 0),
  61         SD_BUS_METHOD("NoOperation", NULL, NULL, NULL, 0),
  62         SD_BUS_SIGNAL("DummySignal", "b", 0),
  63         SD_BUS_SIGNAL("DummySignal2", "so", 0),
  64         SD_BUS_VTABLE_END
  65 };
  66
  67 static void test_vtable(void) {
  68         sd_bus *bus = NULL;
  69         struct context c = {};
  70         int r;
  71
  72         assert(sd_bus_new(&bus) >= 0);
  73
  74         assert(sd_bus_add_object_vtable(bus, NULL, "/foo", "org.freedesktop.systemd.testVtable", vtable, &c) >= 0);
  75         assert(sd_bus_add_object_vtable(bus, NULL, "/foo", "org.freedesktop.systemd.testVtable2", vtable, &c) >= 0);
  76
  77         assert(sd_bus_set_address(bus, DEFAULT_BUS_PATH) >= 0);
  78         r = sd_bus_start(bus);
  79         assert(r == 0 ||     /* success */
  80                r == -ENOENT  /* dbus is inactive */ );
  81
  82         sd_bus_unref(bus);
  83 }
  84
  85 int main(int argc, char **argv) {
  86         test_vtable();
  87
  88         return 0;
  89 }