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I need to use several timers in my application. I have searched the
glibmm reference http://www.gtkmm.org/docs/glibmm-2.4/docs/reference/html/classes.html and tutorial http://www.gtkmm.org/docs/gtkmm-2.4/docs/tutorial/html/ and have been able to learn enough to actually use timers in my app. Still, there are a few questions about timers and I have not been able to learn the answers from the above reference material or from this list. There are two things I want to do: 1. enable/disable a timer on demand. 2. change the timeout period while running. For the enable/disable I see from the tutorial and this list that I can do something like my_connection.disconnect() or have the timer handler return false. That leave me with one question. Somewhere in this list I saw a post that suggested just repeating the timer creation to re-enable. so, if I have this from the example sigc::connection conn = Glib::signal_timeout().connect(my_slot, timeout_value); I just use this to disconnect with this conn.disconnect(); but, do the SignalTimeout resources go away when I disconnect? If I then reconnect by calling again sigc::connection conn = Glib::signal_timeout().connect(my_slot, timeout_value); will I have a resource leak? I see the doc http://www.gtkmm.org/docs/glibmm-2.4/docs/reference/html/classGlib_1_1SignalTimeout.html says that Glib::signal_timeout().connect(sigc::ptr_fun(&timeout_handler), 1000); const Glib::RefPtr<Glib::TimeoutSource> timeout_source = Glib::TimeoutSource::create(1000); timeout_source->connect(sigc::ptr_fun(&timeout_handler)); timeout_source->attach(Glib::MainContext::get_default()); Does the RefPtr mean there won't be a resource leak? Is there any value in using the 3 line method and just connecting and disconnecting with timeout_source? For my second question about changing the timeout period, I don't find any information that helps me to know how to do this. Any suggestions. Damon Register |