tipc_paxos.pl

/*  Part of SWI-Prolog

    Author:        Jan Wielemaker
    WWW:           http://www.swi-prolog.org
    Copyright (c)  2018, CWI, Amsterdam
    All rights reserved.

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    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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*/

:- module(tipc_paxos,
          [ tipc_paxos_get/1,         % ?Term
            tipc_paxos_get/2,         % ?Term, +Options
            tipc_paxos_set/1,         % ?Term
            tipc_paxos_set/2,         % ?Term, +Options
            tipc_paxos_on_change/2,   % ?Term, +Goal
            tipc_initialize/0
          ]).
:- use_module(library(tipc/tipc_broadcast), [tipc_initialize/0]).
:- autoload(library(paxos),[paxos_set/2,paxos_get/2,paxos_on_change/2]).

/** <module> Paxos on TIPC

This module provides compatibility for  using   paxos  over  TIPC. As of
SWI-Prolog 7.7.15 the core of this  module   has  been moved to the core
library as library(paxos)  and  can  be   used  with  other  distributed
implementations of library(broadcast) such as library(udb_broadcast).
*/

:- meta_predicate
    tipc_paxos_on_change(?, 0).

%!  tipc_paxos_set(?Term) is semidet.
%!  tipc_paxos_get(?Term) is semidet.
%!  tipc_paxos_get(?Term, +Options) is semidet.
%!  tipc_paxos_set(?Term, +Options) is semidet.
%!  tipc_paxos_on_change(?Term, :Goal) is det.

tipc_paxos_set(Term) :-             paxos_set(Term, []).
tipc_paxos_set(Term, Options) :-    paxos_set(Term, Options).
tipc_paxos_get(Term) :-             paxos_get(Term, []).
tipc_paxos_get(Term, Options) :-    paxos_get(Term, Options).
tipc_paxos_on_change(Term, Goal) :- paxos_on_change(Term, Goal).

:- multifile
    paxos:paxos_message_hook/3.

paxos:paxos_message_hook(Paxos, -,   tipc_cluster(Paxos)) :- !.
paxos:paxos_message_hook(Paxos, TMO, tipc_cluster(Paxos, TMO)).