<div>Hi..</div> <div> </div> <div>I created the thread concept and enabled the dbus working :) </div> <div> </div> <div>now i am doing the dbus bench marking. finding the latency and average of each thread across dbus.</div> <div> </div> <div>Initially i used to get 4.3msec as the average time to call a function in dbus(i.e calling a function in server and getting a return value for the called function),</div> <div>but later now i am getting 24.3msecs as the average time to call a same function.I didnt do any change to the function which is being called.</div> <div> </div> <div>so i am thinking is there anything i am missing, do the dbus message bus need to flushed or is there anything like that need to be done across the dbus.</div> <div> to make the dbus to work faster and maintaine its transfer speed.</div> <div> </div> <div> </div> <div>Thank you.</div> <div> </div> <div>vinoth</div> <div><br><br> </div> <div class="gmail_quote">On Tue, May 22, 2012 at 4:26 PM, Simon McVittie <span dir="ltr"><<a href="mailto:simon.mcvittie@collabora.co.uk" target="_blank">simon.mcvittie@collabora.co.uk</a>></span> wrote:<br> <blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;PADDING-LEFT:1ex" class="gmail_quote">(Please ask the mailing list rather than asking individual contributors.<br>If you ask me personally, only I can help you, and if I'm too busy, you<br> won't get an answer; if you ask the mailing list, anyone on the list can<br>help you.)<br> <div class="im"><br>On 22/05/12 11:38, Vinoth V wrote:<br>> but I have requirement like message need to pass from server to client<br>> also.<br><br></div>That's possible.<br> <div class="im"><br>> for every 2 mins server will send a specific details to its client, this<br>> msg should be initiated by the server and client should respond back...<br><br></div>That's possible. I'd do this as an asynchronous method call sent by the<br> "server" to the "client". This reverses their usual roles, but that's OK<br>- all processes on D-Bus are treated the same. Telepathy and BlueZ both<br>have situations where the process you'd normally think of as the<br> "server" calls methods on the process you'd normally think of as the<br>"client".<br><br>It has to be an asynchronous method call (send request, go back to your<br>main loop, get a callback called from your main loop later) because if<br> two processes try to make synchronous method calls to each other,<br>they'll typically deadlock while each waits for the other to reply.<br><br>You should make asynchronous method calls anyway, though; see<br><<a href="http://smcv.pseudorandom.co.uk/2008/11/nonblocking/" target="_blank">http://smcv.pseudorandom.co.uk/2008/11/nonblocking/</a>>.<br> <div class="im"><br>> Is there any API avaliable in glib to do this or we need to create a<br>> another message bus for the client side to meet my requirement.<br><br></div>Export an object with a method from the "client" (e.g. with<br> g_dbus_connection_register_object()); make the "client" tell the<br>"server" its unique name somehow (e.g. call<br>g_dbus_connection_get_unique_name() and send that to the "server"); make<br> the "server" call the client's method by using that unique name.<br> <div class="im"><br>> whether my requirement can be achieved using signals ..?<br><br></div>You could do this with signals too, although method calls would probably<br>be easier to understand:<br><br>* emit signal with your "specific details" every 2 minutes<br> * your client responds to that signal by calling a method on the server<br> <div class="im"><br>> but i need to<br>> send data structures as arguments ..<br>> maximum three arugments i need to send from the server to client.<br><br></div>You can send nearly any data structure that you can encode into a<br> GVariant (exceptions: you can't send any type involving "maybe", you can<br>only send a dict-entry if it's in an array of dict-entry, and you can't<br>send empty tuples).<br><br>If you have a complex data structure you will need to work out how to<br> encode it as a D-Bus message (or, equivalently, as a GVariant without<br>using the features I mentioned).<br><span class="HOEnZb"><font color="#888888"><br> S<br></font></span></blockquote></div><br>