38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
// SPDX-FileCopyrightText: 2024 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
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// SPDX-License-Identifier: GPL-3.0-only
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#include "PreviewCounter.h"
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#include "../common/JFJochException.h"
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PreviewCounter::PreviewCounter(const std::optional<std::chrono::microseconds> &in_period) : period(in_period), last_preview() {}
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bool PreviewCounter::GeneratePreview() {
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std::unique_lock ul(m);
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if (!period.has_value())
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return false;
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if (period.value().count() == 0)
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return true;
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if (period.value().count() < 0)
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throw JFJochException(JFJochExceptionCategory::InputParameterBelowMin,
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"Preview period must be zero or above");
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auto now = std::chrono::system_clock::now();
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if (now > last_preview + period.value()) {
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last_preview = now;
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return true;
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} else
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return false;
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}
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PreviewCounter &PreviewCounter::Period(const std::optional<std::chrono::microseconds> &in_period) {
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std::unique_lock ul(m);
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period = in_period;
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return *this;
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}
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std::optional<std::chrono::microseconds> PreviewCounter::GetPeriod() const {
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return period;
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}
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