unixSignalAdd

fnuint unixSignalAdd(int priority, int signum, glib.types.SourceFunc handler)

A convenience function for glib.global.unixSignalSourceNew, which attaches to the default #GMainContext. You can remove the watch using glib.source.Source.remove.

`priority`	the priority of the signal source. Typically this will be in the range between glib.types.PRIORITY_DEFAULT and glib.types.PRIORITY_HIGH.
`signum`	Signal number
`handler`	Callback

An ID (greater than 0) for the event source