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%% This Source Code Form is subject to the terms of the Mozilla Public
%% License, v. 2.0. If a copy of the MPL was not distributed with this
%% file, You can obtain one at https://mozilla.org/MPL/2.0/.
%%
%% Copyright (c) 2007-2020 VMware, Inc. or its affiliates. All rights reserved.
%%
-module(rabbit_upgrade_preparation).
-export([await_online_quorum_plus_one/1, await_online_synchronised_mirrors/1]).
%%
%% API
%%
-define(SAMPLING_INTERVAL, 200).
await_online_quorum_plus_one(Timeout) ->
Iterations = ceil(Timeout / ?SAMPLING_INTERVAL),
do_await_safe_online_quorum(Iterations).
await_online_synchronised_mirrors(Timeout) ->
Iterations = ceil(Timeout / ?SAMPLING_INTERVAL),
do_await_online_synchronised_mirrors(Iterations).
%%
%% Implementation
%%
do_await_safe_online_quorum(0) ->
false;
do_await_safe_online_quorum(IterationsLeft) ->
case rabbit_quorum_queue:list_with_minimum_quorum() of
[] -> true;
List when is_list(List) ->
timer:sleep(?SAMPLING_INTERVAL),
do_await_safe_online_quorum(IterationsLeft - 1)
end.
do_await_online_synchronised_mirrors(0) ->
false;
do_await_online_synchronised_mirrors(IterationsLeft) ->
case rabbit_amqqueue:list_local_mirrored_classic_without_synchronised_mirrors() of
[] -> true;
List when is_list(List) ->
timer:sleep(?SAMPLING_INTERVAL),
do_await_online_synchronised_mirrors(IterationsLeft - 1)
end.
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