src/libsystemd/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 #define DEFAULT_BUS_PATH "unix:path=/run/dbus/system_bus_socket"
  12
  13 struct context {
  14         bool quit;
  15         char *something;
  16         char *automatic_string_property;
  17         uint32_t automatic_integer_property;
  18 };
  19
  20 static int handler(sd_bus_message *m, void *userdata, sd_bus_error *error) {
  21         return 1;
  22 }
  23
  24 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) {
  25         return 1;
  26 }
  27
  28 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) {
  29         return 1;
  30 }
  31
  32 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) {
  33         return 1;
  34 }
  35
  36 static const sd_bus_vtable vtable[] = {
  37         SD_BUS_VTABLE_START(0),
  38         SD_BUS_METHOD("AlterSomething", "s", "s", handler, 0),
  39         SD_BUS_METHOD("Exit", "", "", handler, 0),
  40         SD_BUS_METHOD_WITH_OFFSET("AlterSomething2", "s", "s", handler, 200, 0),
  41         SD_BUS_METHOD_WITH_OFFSET("Exit2", "", "", handler, 200, 0),
  42         SD_BUS_PROPERTY("Value", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  43         SD_BUS_PROPERTY("Value2", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
  44         SD_BUS_PROPERTY("Value3", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_CONST),
  45         SD_BUS_PROPERTY("Value4", "s", value_handler, 10, 0),
  46         SD_BUS_PROPERTY("AnExplicitProperty", "s", NULL, offsetof(struct context, something),
  47                         SD_BUS_VTABLE_PROPERTY_EXPLICIT|SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
  48         SD_BUS_WRITABLE_PROPERTY("Something", "s", get_handler, set_handler, 0, 0),
  49         SD_BUS_WRITABLE_PROPERTY("AutomaticStringProperty", "s", NULL, NULL,
  50                                  offsetof(struct context, automatic_string_property), 0),
  51         SD_BUS_WRITABLE_PROPERTY("AutomaticIntegerProperty", "u", NULL, NULL,
  52                                  offsetof(struct context, automatic_integer_property), 0),
  53         SD_BUS_METHOD("NoOperation", NULL, NULL, NULL, 0),
  54         SD_BUS_SIGNAL("DummySignal", "b", 0),
  55         SD_BUS_SIGNAL("DummySignal2", "so", 0),
  56         SD_BUS_VTABLE_END
  57 };
  58
  59 static void test_vtable(void) {
  60         sd_bus *bus = NULL;
  61         struct context c = {};
  62         int r;
  63
  64         assert(sd_bus_new(&bus) >= 0);
  65
  66         assert(sd_bus_add_object_vtable(bus, NULL, "/foo", "org.freedesktop.systemd.testVtable", vtable, &c) >= 0);
  67         assert(sd_bus_add_object_vtable(bus, NULL, "/foo", "org.freedesktop.systemd.testVtable2", vtable, &c) >= 0);
  68
  69         assert(sd_bus_set_address(bus, DEFAULT_BUS_PATH) >= 0);
  70         r = sd_bus_start(bus);
  71         assert(r == 0 ||     /* success */
  72                r == -ENOENT  /* dbus is inactive */ );
  73
  74         sd_bus_unref(bus);
  75 }
  76
  77 int main(int argc, char **argv) {
  78         test_vtable();
  79
  80         return 0;
  81 }