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BusySpinWaitStrategy.h
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34 lines (26 loc) · 961 Bytes
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#pragma once
#include <mutex>
#include "Disruptor/IWaitStrategy.h"
namespace Disruptor
{
/**
* Busy Spin strategy that uses a busy spin loop for IEventProcessor's waiting on a barrier.
* This strategy will use CPU resource to avoid syscalls which can introduce latency jitter. It is best used when threads can be bound to specific CPU cores.
*/
class BusySpinWaitStrategy : public IWaitStrategy
{
public:
/**
* \see IWaitStrategy::waitFor
*/
std::int64_t waitFor(std::int64_t sequence,
Sequence& cursor,
ISequence& dependentSequence,
ISequenceBarrier& barrier) override;
/**
* \see IWaitStrategy::signalAllWhenBlocking
*/
void signalAllWhenBlocking() override;
void writeDescriptionTo(std::ostream& stream) const override;
};
} // namespace Disruptor