50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
// Copyright (c) 2012-2015, The CryptoNote developers, The Bytecoin developers
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//
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// This file is part of Bytecoin.
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//
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// Bytecoin 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 3 of the License, or
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// (at your option) any later version.
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//
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// Bytecoin 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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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with Bytecoin. If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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#include <time.h>
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namespace CryptoNote
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{
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class OnceInInterval {
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public:
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OnceInInterval(unsigned interval, bool startNow = true)
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: m_interval(interval), m_lastCalled(startNow ? 0 : time(nullptr)) {}
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template<class F>
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bool call(F func) {
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time_t currentTime = time(nullptr);
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if (currentTime - m_lastCalled > m_interval) {
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bool res = func();
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time(&m_lastCalled);
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return res;
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}
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return true;
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}
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private:
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time_t m_lastCalled;
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time_t m_interval;
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};
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}
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