48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
// *****************************************************************************
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// * This file is part of the FreeFileSync project. It is distributed under *
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// * GNU General Public License: https://www.gnu.org/licenses/gpl-3.0 *
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// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
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// *****************************************************************************
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#ifndef PERF_CHECK_H_87804217589312454
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#define PERF_CHECK_H_87804217589312454
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#include <chrono>
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#include <optional>
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#include <string>
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#include <zen/ring_buffer.h>
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namespace fff
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{
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class SpeedTest
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{
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public:
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explicit SpeedTest(std::chrono::milliseconds windowSize) : windowSize_(windowSize) {}
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void addSample(std::chrono::nanoseconds timeElapsed, int itemsCurrent, int64_t bytesCurrent);
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std::optional<double> getRemainingSec(int itemsRemaining, int64_t bytesRemaining) const;
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std::optional<double> getBytesPerSec() const;
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std::optional<double> getItemsPerSec() const;
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std::wstring getBytesPerSecFmt() const; //empty if not (yet) available
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std::wstring getItemsPerSecFmt() const; //
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void clear() { samples_.clear(); }
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private:
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struct Sample
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{
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std::chrono::nanoseconds timeElapsed{}; //std::chrono::duration is uninitialized by default! WTF
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int items = 0;
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int64_t bytes = 0;
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};
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const std::chrono::milliseconds windowSize_;
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zen::RingBuffer<Sample> samples_;
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};
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}
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#endif //PERF_CHECK_H_87804217589312454
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