kopia lustrzana https://github.com/jameshball/osci-render
45 wiersze
1.2 KiB
C++
45 wiersze
1.2 KiB
C++
/*
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* IXExponentialBackoff.cpp
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* Author: Benjamin Sergeant
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* Copyright (c) 2017-2019 Machine Zone, Inc. All rights reserved.
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*/
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#include "IXExponentialBackoff.h"
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#include <cmath>
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namespace ix
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{
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uint32_t calculateRetryWaitMilliseconds(uint32_t retryCount,
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uint32_t maxWaitBetweenReconnectionRetries,
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uint32_t minWaitBetweenReconnectionRetries)
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{
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// It's easy with a power function to go beyond 2^32, and then
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// have unexpected results, so prepare for that
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const uint32_t maxRetryCountWithoutOverflow = 26;
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uint32_t waitTime = 0;
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if (retryCount < maxRetryCountWithoutOverflow)
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{
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waitTime = std::pow(2, retryCount) * 100;
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}
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if (waitTime < minWaitBetweenReconnectionRetries)
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{
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waitTime = minWaitBetweenReconnectionRetries;
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}
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if (waitTime > maxWaitBetweenReconnectionRetries)
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{
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waitTime = maxWaitBetweenReconnectionRetries;
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}
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if (retryCount >= maxRetryCountWithoutOverflow)
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{
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waitTime = maxWaitBetweenReconnectionRetries;
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}
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return waitTime;
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}
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} // namespace ix
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