Updates the event mask to watch for the fd identified by tag.
tag is the tag returned from glib.source.Source.addUnixFd.
If you want to remove a fd, don't set its event mask to zero. Instead, call glib.source.Source.removeUnixFd.
This API is only intended to be used by implementations of #GSource. Do not call this API on a #GSource that you did not create.
As the name suggests, this function is not available on Windows.
the tag from glib.source.Source.addUnixFd
the new event mask to watch
Updates the event mask to watch for the fd identified by tag.
tag is the tag returned from glib.source.Source.addUnixFd.
If you want to remove a fd, don't set its event mask to zero. Instead, call glib.source.Source.removeUnixFd.
This API is only intended to be used by implementations of #GSource. Do not call this API on a #GSource that you did not create.
As the name suggests, this function is not available on Windows.