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simple-signal-emit.c

Server that registers a service interface and emits simple signals.

//Compile with:
// gcc -o simple-signal-emit simple-signal-emit.c `pkg-config --cflags --libs eldbus`
#include <Eldbus.h>
enum {
TEST_SIGNAL_ALIVE,
TEST_SIGNAL_PROP,
TEST_SIGNAL_NAME,
};
static const Eldbus_Signal test_signals[] = {
[TEST_SIGNAL_ALIVE] = { "Alive" },
[TEST_SIGNAL_PROP] = { "Properties", ELDBUS_ARGS({ "a{ss}", "properties"}) },
[TEST_SIGNAL_NAME] = { "Name", ELDBUS_ARGS({ "s", "name"}) },
{ }
};
/* signal with complex arguments (a dict) */
static void emit_properties(Eldbus_Service_Interface *iface)
{
Eldbus_Message *alive2;
Eldbus_Message_Iter *iter, *dict;
struct keyval {
const char *key;
const char *val;
} keyval[] = {
{ "key1", "val1" },
{ "key2", "val2" },
{ }
};
struct keyval *k;
alive2 = eldbus_service_signal_new(iface, TEST_SIGNAL_PROP);
iter = eldbus_message_iter_get(alive2);
dict = eldbus_message_iter_container_new(iter, 'a', "{ss}");
for (k = keyval; k && k->key; k++)
{
Eldbus_Message_Iter *entry = eldbus_message_iter_container_new(dict, 'e',
NULL);
eldbus_message_iter_arguments_append(entry, "ss", k->key, k->val);
eldbus_message_iter_container_close(dict, entry);
}
eldbus_message_iter_container_close(iter, dict);
eldbus_service_signal_send(iface, alive2);
}
/* signal with basic args */
static void emit_name(Eldbus_Service_Interface *iface)
{
eldbus_service_signal_emit(iface, TEST_SIGNAL_NAME, "TEST");
}
/* simple signal example */
static void emit_alive(Eldbus_Service_Interface *iface)
{
eldbus_service_signal_emit(iface, TEST_SIGNAL_ALIVE);
}
static const Eldbus_Service_Interface_Desc iface_desc = {
"org.enlightenment.Test", NULL, test_signals
};
int main(void)
{
Eldbus_Connection *conn;
Eldbus_Service_Interface *iface;
eldbus_init();
conn = eldbus_connection_get(ELDBUS_CONNECTION_TYPE_SESSION);
iface = eldbus_service_interface_register(conn, "/org/enlightenment",
&iface_desc);
emit_alive(iface);
emit_name(iface);
emit_properties(iface);
eldbus_connection_unref(conn);
eldbus_shutdown();
return 0;
}