Synchronous calls to proxy methods with timeout.

[miccoli]

If I got it right, synchronous calls to proxy methods block, and will never timeout. This of course in not aways desiderable, so I tried to enforce a timeout in the 03_helloworld example

original example

https://github.com/rhinstaller/dasbus/blob/7841babbbe7cd30a3d48b775c7e4e4f1e2091430/examples/03_helloworld/client.py#L5-L13

and came out with the following code, which works as expected:

#
# Say hello to the world.
# Start the server and run the client.
#
from gi.repository import Gio, GLib

from common import HELLO_WORLD

if __name__ == "__main__":
    # Create a proxy of the object /org/example/HelloWorld
    # provided by the service org.example.HelloWorld
    proxy = HELLO_WORLD.get_proxy()

    # Call the DBus method Hello and print the return value, timeout after 10ms
    try:
        print(proxy.Hello("World", timeout=10))
    except GLib.Error as err:
        if err.matches(Gio.io_error_quark(), Gio.IOErrorEnum.TIMED_OUT):
            print("** Timeout **")
        else:
            raise

So, my first question is if this is the correct way of implmenting timeouts? The code looks quite low level, so I'm wondering if I missed a dasbus feature.

Second question, or better a feature request: shouldn't the timeout mechanism be implemented in dasbus, raising a dasbus.error.TimeoutError exception?

[poncovka]

Hi! Your solution looks correct, but I like your suggestion more. It is implemented at #92 and it includes an example in the documentation that should demonstrate the functionality. Thank you for reaching out!