33 lines
1.1 KiB
Erlang
33 lines
1.1 KiB
Erlang
%% Copyright (C) 2026 Fluxer Contributors
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%%
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%% This file is part of Fluxer.
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%%
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%% Fluxer is free software: you can redistribute it and/or modify
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%% it under the terms of the GNU Affero General Public License as published by
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%% the Free Software Foundation, either version 3 of the License, or
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%% (at your option) any later version.
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%%
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%% Fluxer is distributed in the hope that it will be useful,
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%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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%% GNU Affero General Public License for more details.
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%%
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%% You should have received a copy of the GNU Affero General Public License
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%% along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
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-module(backoff_utils).
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-export([
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calculate/1,
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calculate/2
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]).
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-spec calculate(non_neg_integer()) -> non_neg_integer().
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calculate(Attempt) ->
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calculate(Attempt, 30000).
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-spec calculate(non_neg_integer(), pos_integer()) -> non_neg_integer().
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calculate(Attempt, MaxMs) ->
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BackoffMs = round(1000 * math:pow(2, Attempt)),
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min(BackoffMs, MaxMs).
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