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partisan

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Partisan is a scalable and flexible, TCP-based membership system and distribution layer for the BEAM.

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partisan include partisan_util.hrl
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include/partisan_util.hrl 

-define(RECORD_TO_LIST(Record),

    lists:zip(?MODULE:record_info(fields, Record), tl(tuple_to_list(Record)))

).



-define(RECORD_TO_MAP(Record),

    maps:from_list(?RECORD_TO_LIST(Record))

).





-define(IS_IP(X), (?IS_IP4(X) orelse ?IS_IP6(X))).



%% copied from inet_int.hrl

%% macro for guards only that checks IP address {A,B,C,D}

%% that returns true for an IP address, but returns false

%% or crashes for other terms

-define(IS_IP4(A, B, C, D),

    (((A) bor (B) bor (C) bor (D)) band (bnot 16#ff)) =:= 0

).



%% d:o for IP address as one term

-define(IS_IP4(Addr),

    (tuple_size(Addr) =:= 4 andalso

     ?IS_IP4(element(1, (Addr)), element(2, (Addr)),

         element(3, (Addr)), element(4, (Addr))))

).



%% d:o IPv6 address

-define(IS_IP6(A, B, C, D, E, F, G, H),

    (((A) bor (B) bor (C) bor (D) bor (E) bor (F) bor (G) bor (H))

     band (bnot 16#ffff)) =:= 0).



-define(IS_IP6(Addr),

    (tuple_size(Addr) =:= 8 andalso

     ?IS_IP6(element(1, (Addr)), element(2, (Addr)),

          element(3, (Addr)), element(4, (Addr)),

          element(5, (Addr)), element(6, (Addr)),

          element(7, (Addr)), element(8, (Addr))))

).





-define(IS_PORT_NBR(N), (N >= 1 andalso N =< 65535)).