FlakeId: ignore null mac for workerid, use first mac

This commit is contained in:
href 2019-01-24 13:08:27 +01:00
parent 9ba6e1fabe
commit be43aa2875
No known key found for this signature in database
GPG key ID: EE8296C1A152C325

View file

@ -161,23 +161,23 @@ defp time do
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