def to_string(s), do: s
- def from_string(<<id::integer-size(64)>>) do
- <<0::integer-size(64), id::integer-size(64)>>
- end
-
for i <- [-1, 0] do
def from_string(unquote(i)), do: <<0::integer-size(128)>>
def from_string(unquote(Kernel.to_string(i))), do: <<0::integer-size(128)>>
1_000_000_000 * mega_seconds + seconds * 1000 + :erlang.trunc(micro_seconds / 1000)
end
- defp mac do
+ def mac do
{:ok, addresses} = :inet.getifaddrs()
- ifaces_with_mac =
- Enum.reduce(addresses, [], fn {iface, attrs}, acc ->
- if attrs[:hwaddr], do: [iface | acc], else: acc
+ macids =
+ Enum.reduce(addresses, [], fn {_iface, attrs}, acc ->
+ case attrs[:hwaddr] do
+ [0, 0, 0 | _] -> acc
+ mac when is_list(mac) -> [mac_to_worker_id(mac) | acc]
+ _ -> acc
+ end
end)
- iface = Enum.at(ifaces_with_mac, :rand.uniform(length(ifaces_with_mac)) - 1)
- mac(iface)
+ List.first(macids)
end
- defp mac(name) do
- {:ok, addresses} = :inet.getifaddrs()
- proplist = :proplists.get_value(name, addresses)
- hwaddr = Enum.take(:proplists.get_value(:hwaddr, proplist), 6)
- <<worker::integer-size(48)>> = :binary.list_to_bin(hwaddr)
+ def mac_to_worker_id(mac) do
+ <<worker::integer-size(48)>> = :binary.list_to_bin(mac)
worker
end
end