Gets the thread-default GMainContext for this thread. Asynchronous
operations that want to be able to be run in contexts other than
the default one should call this method or
g_main_context_ref_thread_default() to get a GMainContext to add
their GSources to. (Note that even in single-threaded
programs applications may sometimes want to temporarily push a
non-default context, so it is not safe to assume that this will
always return NULL if you are running in the default thread.)
If you need to hold a reference on the context, use
g_main_context_ref_thread_default() instead.
Since 2.22
Gets the thread-default GMainContext for this thread. Asynchronous operations that want to be able to be run in contexts other than the default one should call this method or g_main_context_ref_thread_default() to get a GMainContext to add their GSources to. (Note that even in single-threaded programs applications may sometimes want to temporarily push a non-default context, so it is not safe to assume that this will always return NULL if you are running in the default thread.) If you need to hold a reference on the context, use g_main_context_ref_thread_default() instead. Since 2.22