ClickHouse/src/Common/TimerDescriptor.h

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#pragma once
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#if defined(OS_LINUX)
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#include <Poco/Timespan.h>
namespace DB
{
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/// Wrapper over timerfd.
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class TimerDescriptor
{
private:
int timer_fd;
public:
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explicit TimerDescriptor(int clockid = CLOCK_MONOTONIC, int flags = 0);
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~TimerDescriptor();
TimerDescriptor(const TimerDescriptor &) = delete;
TimerDescriptor & operator=(const TimerDescriptor &) = delete;
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TimerDescriptor(TimerDescriptor && other);
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TimerDescriptor & operator=(TimerDescriptor &&) = default;
int getDescriptor() const { return timer_fd; }
void reset() const;
void drain() const;
void setRelative(const Poco::Timespan & timespan) const;
};
}
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#endif