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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "clock.h"
#include <cassert>
#include <chrono>
namespace vespalib {
Clock::Clock(double timePeriod) :
_timeNS(0u),
_timePeriodMS(static_cast<uint32_t>(timePeriod*1000)),
_lock(),
_cond(),
_stop(false),
_running(false)
{
setTime();
}
Clock::~Clock()
{
assert(!_running);
}
void Clock::setTime() const
{
_timeNS = fastos::ClockSteady::now();
}
void Clock::Run(FastOS_ThreadInterface *thread, void *arguments)
{
(void) arguments;
_running = true;
std::unique_lock<std::mutex> guard(_lock);
while ( ! thread->GetBreakFlag() && !_stop) {
setTime();
_cond.wait_for(guard, std::chrono::milliseconds(_timePeriodMS));
}
_running = false;
}
void
Clock::stop()
{
std::lock_guard<std::mutex> guard(_lock);
_stop = true;
_cond.notify_all();
}
}
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