Run the specified callback function once from the main loop using an
* anonymous defer event. If the mainloop runs in a different thread, you need
* to follow the mainloop implementation's rules regarding how to safely create
* defer events. In particular, if you're using \ref pa_threaded_mainloop, you
* must lock the mainloop before calling this function.
Run the specified callback function once from the main loop using an * anonymous defer event. If the mainloop runs in a different thread, you need * to follow the mainloop implementation's rules regarding how to safely create * defer events. In particular, if you're using \ref pa_threaded_mainloop, you * must lock the mainloop before calling this function.