local methods = {};

local resolver_mt = { __index = methods };

local unpack = table.unpack;

-- Find the next target to connect to, and

-- pass it to cb()

function methods:next(cb)

	if #self.targets == 0 then

		cb(nil);

		return;

	end

	local next_target = table.remove(self.targets, 1);

	cb(unpack(next_target, 1, 4));

end

local function new(targets, conn_type, extra)

	return setmetatable({

		conn_type = conn_type;

		extra = extra;

		targets = targets or {};

	}, resolver_mt);

end

return {

	new = new;

};