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.
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.