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Packages: gio-2.0
D-Bus
Program: client
[DBus (name = "org.example.Test")]
interface Test : Object {
public abstract string[] list_messages () throws IOError;
public abstract void post_message (string message) throws IOError;
[DBus (no_reply = true)]
public abstract void post_message_no_reply (string message) throws IOError;
}
MainLoop main_loop;
async void run () {
Test test = yield Bus.get_proxy (BusType.SESSION, "org.example.Test", "/org/example/Test");
var events = new AsyncQueue<string> ();
DBusConnection connection = ((DBusProxy) test).g_connection;
connection.add_filter ((conn, message, incoming) => {
if (message.get_interface () == "org.example.Test" && message.get_member () != "ListMessages") {
switch (message.get_message_type ()) {
case DBusMessageType.METHOD_CALL:
events.push (message.get_flags ().to_string ());
break;
default:
assert_not_reached ();
}
}
return message;
});
string[] messages = test.list_messages ();
assert (messages.length == 0);
test.post_message ("round-trip");
assert (events.pop () == "G_DBUS_MESSAGE_FLAGS_NONE");
assert (events.try_pop () == null);
test.post_message_no_reply ("fire-and-forget");
assert (events.pop () == "G_DBUS_MESSAGE_FLAGS_NO_REPLY_EXPECTED");
assert (events.try_pop () == null);
messages = test.list_messages ();
assert (messages.length == 2);
assert (messages[0] == "round-trip");
assert (messages[1] == "fire-and-forget");
main_loop.quit ();
}
void main () {
run.begin ();
main_loop = new MainLoop (null, false);
main_loop.run ();
}
Program: server
[DBus (name = "org.example.Test")]
class Test : Object {
private string[] messages = new string[0];
public string[] list_messages () {
return messages;
}
public void post_message (string message) {
messages += message;
}
[DBus (no_reply = true)]
public void post_message_no_reply (string message) {
messages += message;
}
}
MainLoop main_loop;
void client_exit (Pid pid, int status) {
assert (status == 0);
main_loop.quit ();
}
void main () {
var conn = Bus.get_sync (BusType.SESSION);
conn.register_object ("/org/example/Test", new Test ());
var request_result = conn.call_sync ("org.freedesktop.DBus", "/org/freedesktop/DBus", "org.freedesktop.DBus", "RequestName",
new Variant ("(su)", "org.example.Test", 0x4), null, 0, -1);
assert ((uint) request_result.get_child_value (0) == 1);
Pid client_pid;
Process.spawn_async (null, { "dbus_no_reply_client" }, null, SpawnFlags.DO_NOT_REAP_CHILD, null, out client_pid);
ChildWatch.add (client_pid, client_exit);
main_loop = new MainLoop ();
main_loop.run ();
}
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