Used from an I/O job to send a callback to be run in the thread that the job was started from, waiting for the result (and thus blocking the I/O job).
a #GSourceFunc callback that will be called in the original thread
Used from an I/O job to send a callback to be run asynchronously in the thread that the job was started from. The callback will be run when the main loop is available, but at that time the I/O job might have finished. The return value from the callback is ignored.
Note that if you are passing the user_data from g_io_scheduler_push_job()
on to this function you have to ensure that it is not freed before
func is called, either by passing %NULL as notify to
g_io_scheduler_push_job() or by using refcounting for user_data.
a #GSourceFunc callback that will be called in the original thread
Opaque class for defining and scheduling IO jobs.