Sets a function to be called when the IO condition, as specified by condition becomes true for fd.
This is the same as glib.global.unixFdAdd, except that it allows you to specify a non-default priority and a provide a #GDestroyNotify for user_data.
the priority of the source
a file descriptor
IO conditions to watch for on fd
a #GUnixFDSourceFunc
the ID (greater than 0) of the event source
Sets a function to be called when the IO condition, as specified by condition becomes true for fd.
This is the same as glib.global.unixFdAdd, except that it allows you to specify a non-default priority and a provide a #GDestroyNotify for user_data.