Packages

erldns

9.0.0-rc2
11.1.0 11.0.3 11.0.2 11.0.1 11.0.0 10.6.0 10.5.6 10.5.5 10.5.4 10.5.3 10.5.2 10.5.1 10.5.0 10.4.4 10.4.3 10.4.2 10.4.1 10.4.0 10.3.0 10.2.1 10.2.0 10.1.0 10.0.0 10.0.0-rc4 10.0.0-rc3 10.0.0-rc2 10.0.0-rc1 9.1.0 9.0.0 9.0.0-rc3 9.0.0-rc2 9.0.0-rc1 8.1.0 8.0.0 8.0.0-rc6 8.0.0-rc5 8.0.0-rc4 8.0.0-rc3 8.0.0-rc2 8.0.0-rc1 7.0.0 7.0.0-rc9 7.0.0-rc8 7.0.0-rc7 7.0.0-rc6 7.0.0-rc5 7.0.0-rc4 7.0.0-rc3 7.0.0-rc2 7.0.0-rc12 7.0.0-rc11 7.0.0-rc10 7.0.0-rc1 6.0.2 6.0.1 6.0.0 5.0.0 4.3.1 4.3.0 4.2.4 4.2.3 4.2.2 4.2.1 4.2.0 4.1.2 4.1.1 4.1.0 4.0.0 3.0.0 1.0.0

Erlang Authoritative DNS Server

HexDocs

Current section

Files

Jump to
Readme
70 Versions
7 Dependencies
Dependants
Files
Activity
erldns src erldns_config.erl
Raw

src/erldns_config.erl 

-module(erldns_config).

-moduledoc "Provide application-wide configuration access.".



-export([

    use_root_hints/0,

    ingress_udp_request_timeout/0,

    ingress_tcp_request_timeout/0

]).



-define(DEFAULT_UDP_PROCESS_TIMEOUT, 500).

-define(DEFAULT_TCP_PROCESS_TIMEOUT, 1000).



-doc "Use IANA DNS root servers as hints".

-spec use_root_hints() -> boolean().

use_root_hints() ->

    case application:get_env(erldns, use_root_hints) of

        {ok, Flag} when is_boolean(Flag) ->

            Flag;

        _ ->

            true

    end.



-doc "Timeout in milliseconds before which an UDP request must be completed.".

-spec ingress_udp_request_timeout() -> non_neg_integer().

ingress_udp_request_timeout() ->

    case application:get_env(erldns, ingress_udp_request_timeout) of

        {ok, UdpTimeout} when is_integer(UdpTimeout), 0 =< UdpTimeout ->

            UdpTimeout;

        _ ->

            ?DEFAULT_UDP_PROCESS_TIMEOUT

    end.



-doc "Timeout in milliseconds before which a TCP request must be completed.".

-spec ingress_tcp_request_timeout() -> non_neg_integer().

ingress_tcp_request_timeout() ->

    case application:get_env(erldns, ingress_tcp_request_timeout) of

        {ok, TcpTimeout} when is_integer(TcpTimeout), 0 =< TcpTimeout ->

            TcpTimeout;

        _ ->

            ?DEFAULT_TCP_PROCESS_TIMEOUT

    end.