Sets resolver to be the application's default resolver (reffing
resolver, and unreffing the previous default resolver, if any).
Future calls to Resolver.getDefault will return this resolver.
This can be used if an application wants to perform any sort of DNS
caching or "pinning"; it can implement its own gio.Resolver that
calls the original default resolver for DNS operations, and
implements its own cache policies on top of that, and then set
itself as the default resolver for all later code to use.
Sets resolver to be the application's default resolver (reffing resolver, and unreffing the previous default resolver, if any). Future calls to Resolver.getDefault will return this resolver.
This can be used if an application wants to perform any sort of DNS caching or "pinning"; it can implement its own gio.Resolver that calls the original default resolver for DNS operations, and implements its own cache policies on top of that, and then set itself as the default resolver for all later code to use.