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#pragma once
#include "WAVM/Inline/I128.h"
#include "WAVM/Inline/Time.h"
#include "WAVM/Logging/Logging.h"
#include "WAVM/Platform/Clock.h"
namespace WAVM { namespace Timing {
// Encapsulates a timer that starts when constructed and stops when read.
struct Timer
{
Timer() : startTime(Platform::getClockTime(Platform::Clock::monotonic)), isStopped(false) {}
void stop()
{
endTime = Platform::getClockTime(Platform::Clock::monotonic);
isStopped = true;
}
F64 getNanoseconds()
{
if(!isStopped) { stop(); }
return F64(flushNaNToZero(endTime.ns - startTime.ns));
}
F64 getMicroseconds() { return getNanoseconds() / 1000.0; }
F64 getMilliseconds() { return getNanoseconds() / 1000000.0; }
F64 getSeconds() { return getNanoseconds() / 1000000000.0; }
private:
Time startTime;
Time endTime;
bool isStopped;
};
// Helpers for printing timers.
inline void logTimer(const char* context, Timer& timer)
{
Log::printf(Log::metrics, "%s in %.2fms\n", context, timer.getMilliseconds());
}
inline void logRatePerSecond(const char* context,
Timer& timer,
F64 numerator,
const char* numeratorUnit)
{
Log::printf(Log::metrics,
"%s in %.2fms (%f %s%s)\n",
context,
timer.getMilliseconds(),
timer.getSeconds() == 0.0 ? numerator : numerator / timer.getSeconds(),
numeratorUnit,
timer.getSeconds() == 0.0 ? "" : "/s");
}
}}
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