unixSignalAdd
A convenience function for g_unix_signal_source_new(), which attaches to the default #GMainContext. You can remove the watch using g_source_remove().
Return
An ID (greater than 0) for the event source
Since
2.30
Parameters
priority
the priority of the signal source. Typically this will be in the range between %G_PRIORITY_DEFAULT and %G_PRIORITY_HIGH.
signum
Signal number
handler
Callback