mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#include "td/utils/Time.h"
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#include <cmath>
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#include <atomic>
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namespace td {
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bool operator==(Timestamp a, Timestamp b) {
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return std::abs(a.at() - b.at()) < 1e-6;
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}
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namespace {
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std::atomic<double> time_diff;
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}
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double Time::now() {
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return now_unadjusted() + time_diff.load(std::memory_order_relaxed);
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}
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double Time::now_unadjusted() {
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return Clocks::monotonic();
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}
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void Time::jump_in_future(double at) {
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auto old_time_diff = time_diff.load();
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while (true) {
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auto diff = at - now();
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if (diff < 0) {
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return;
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}
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if (time_diff.compare_exchange_strong(old_time_diff, old_time_diff + diff)) {
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return;
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}
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}
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}
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} // namespace td
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