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#pragma once
#if defined(OS_LINUX)
#include <Poco/Timespan.h>
namespace DB
{
/// Wrapper over timerfd.
class TimerDescriptor
{
private:
int timer_fd;
public:
explicit TimerDescriptor(int clockid = CLOCK_MONOTONIC, int flags = 0);
~TimerDescriptor();
TimerDescriptor(const TimerDescriptor &) = delete;
TimerDescriptor & operator=(const TimerDescriptor &) = delete;
TimerDescriptor(TimerDescriptor && other) noexcept;
TimerDescriptor & operator=(TimerDescriptor &&) = default;
int getDescriptor() const { return timer_fd; }
void reset() const;
void drain() const;
void setRelative(uint64_t usec) const;
void setRelative(Poco::Timespan timespan) const;
};
}
#endif
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