static void object_lost(const void* context, alljoyn_proxybusobject_ref proxyref)
{
alljoyn_proxybusobject proxy = alljoyn_proxybusobject_ref_get(proxyref);
printf("[listener] Door %s:%s no longer exists.\n\tLast known state for lost object:\n",
alljoyn_proxybusobject_getuniquename(proxy), alljoyn_proxybusobject_getpath(proxy));
print_door_state(proxy);
}
static void AJ_CALL object_discovered(const void* context, alljoyn_proxybusobject_ref proxyref)
{
QStatus status;
struct _listener_ctx* ctx = (struct _listener_ctx*) context;
alljoyn_proxybusobject proxy = alljoyn_proxybusobject_ref_get(proxyref);
printf("[listener] Door %s:%s has just been discovered.\n",
alljoyn_proxybusobject_getuniquename(proxy), alljoyn_proxybusobject_getpath(proxy));
alljoyn_busattachment_enableconcurrentcallbacks(ctx->bus);
status = alljoyn_proxybusobject_registerpropertieschangedlistener(proxy, INTF_NAME,
door_intf_props, 3,
properties_changed,
&listener_ctx);
if (status != ER_OK) {
fprintf(stderr, "Could not register properties changed listener\n");
}
alljoyn_proxybusobject_enablepropertycaching(proxy);
print_door_state(proxy);
}
static void AJ_CALL properties_changed(alljoyn_proxybusobject proxy, const char* intf, const alljoyn_msgarg changed, const alljoyn_msgarg invalidated, void* context)
{
QStatus status;
size_t nelem;
alljoyn_msgarg elems;
char* location = NULL;
struct _listener_ctx* ctx = (struct _listener_ctx*) context;
QCC_UNUSED(intf);
printf("[listener] Door %s:%s has changed some properties.\n",
alljoyn_proxybusobject_getuniquename(proxy), alljoyn_proxybusobject_getpath(proxy));
alljoyn_busattachment_enableconcurrentcallbacks(ctx->bus);
status = proxy_get_location(proxy, &location);
if (status == ER_OK) {
printf("\tThat's actually the door at location %s.\n", (location != NULL) ? location : "<unknown>");
free(location);
}
if (ER_OK == status) {
status = alljoyn_msgarg_get(changed, "a{sv}", &nelem, &elems);
}
if (ER_OK == status) {
size_t i;
for (i = 0; i < nelem; ++i) {
const char* prop;
alljoyn_msgarg val;
status = alljoyn_msgarg_get(alljoyn_msgarg_array_element(elems, i), "{sv}", &prop, &val);
if (ER_OK == status) {
if (!strcmp(prop, "Location")) {
char* newloc;
status = alljoyn_msgarg_get_string(val, &newloc);
if (ER_OK == status) {
printf("-> location: %s\n", newloc);
}
} else if (!strcmp(prop, "IsOpen")) {
QCC_BOOL isopen = QCC_FALSE;
status = alljoyn_msgarg_get_bool(val, &isopen);
if (ER_OK == status) {
printf("-> is open: %s\n", isopen ? "yes" : "no");
}
}
} else {
break;
}
}
}
if (ER_OK == status) {
status = alljoyn_msgarg_get(invalidated, "as", &nelem, &elems);
}
if (ER_OK == status) {
size_t i;
for (i = 0; i < nelem; ++i) {
char* prop;
status = alljoyn_msgarg_get(alljoyn_msgarg_array_element(elems, i), "s", &prop);
if (status == ER_OK) {
printf(" invalidated %s\n", prop);
}
}
}
printf("> ");
fflush(stdout);
}
/** returns a reference that must be decref'ed by the application */
static alljoyn_proxybusobject_ref get_door_at_location(alljoyn_busattachment bus, alljoyn_observer observer, const char* find_location)
{
alljoyn_proxybusobject_ref proxyref;
QCC_UNUSED(bus);
for (proxyref = alljoyn_observer_getfirst(observer); proxyref; proxyref = alljoyn_observer_getnext(observer, proxyref)) {
char* location;
alljoyn_proxybusobject proxy = alljoyn_proxybusobject_ref_get(proxyref);
QStatus status = proxy_get_location(proxy, &location);
if (ER_OK != status) {
fprintf(stderr, "Could not get Location property for object %s:%s.\n", alljoyn_proxybusobject_getuniquename(proxy), alljoyn_proxybusobject_getpath(proxy));
continue;
}
if (location != NULL && !strcmp(find_location, location)) {
free(location);
return proxyref;
}
free(location);
}
return NULL;
}
static void list_doors(alljoyn_busattachment bus, alljoyn_observer observer)
{
alljoyn_proxybusobject_ref proxyref;
QCC_UNUSED(bus);
for (proxyref = alljoyn_observer_getfirst(observer); proxyref; proxyref = alljoyn_observer_getnext(observer, proxyref)) {
char* location;
QCC_BOOL isOpen;
alljoyn_proxybusobject proxy = alljoyn_proxybusobject_ref_get(proxyref);
QStatus status = proxy_get_isopen(proxy, &isOpen);
if (ER_OK != status) {
fprintf(stderr, "Could not get IsOpen property for object %s:%s.\n", alljoyn_proxybusobject_getuniquename(proxy), alljoyn_proxybusobject_getpath(proxy));
continue;
}
status = proxy_get_location(proxy, &location);
if (ER_OK != status) {
fprintf(stderr, "Could not get Location property for object %s:%s.\n", alljoyn_proxybusobject_getuniquename(proxy), alljoyn_proxybusobject_getpath(proxy));
continue;
}
printf("Door location: %s open: %s\n", (location != NULL) ? location : "<unknown>", isOpen ? "yes" : "no");
free(location);
}
}