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//
// Copyright 2017 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
//
// NOTE: This is an experimental utility class and Ettus Research
// reserves the right to make behavioral and interface changes at
// any time, including removing this file without notice.
// It should not be used in production code.
//
#ifndef INCLUDED_UHD_UTILS_AUTO_TIMER_HPP
#define INCLUDED_UHD_UTILS_AUTO_TIMER_HPP
// for now, only implemented for windows
#ifdef UHD_PLATFORM_WIN32
// Defines struct tm
#include "time.h"
#include <windows.h>
#include <uhd/utils/msg.hpp>
/*!
* Inserts a timer that logs the duration of its existence (construction to destruction) and the context string to UHD_MSG
* \param context The context string to log in addition to the duration. String buffer MUST be maintained by caling code throughout lifetime of timer object.
*/
#define PROFILE_TIMING(context) \
uhd::_auto_timer::auto_timer ___at(context);
/*!
* Inserts a timer that logs the duration (if exceeds threshold) of its existence (construction to destruction) and the context string to UHD_MSG
* \param context The context string to log in addition to the duration. String buffer MUST be maintained by caling code throughout lifetime of timer object.
* \param threshold Only if the lifetime of the timer exceeds this value will it be logged
*/
#define PROFILE_TIMING_WITH_THRESHOLD(context,threshold) \
uhd::_auto_timer::auto_timer ___at(context,threshold);
/*!
* Inserts a timer that logs the duration of its existence (construction to destruction) and the context string to UHD_MSG
* \param context The context string to log in addition to the duration. String buffer MUST be maintained by caling code throughout lifetime of timer object.
* \param unitScale Report duration in ms or us (kUnitScaleMS or kUnitScaleUS)
*/
#define PROFILE_TIMING_WITH_SCALE(context,unitScale) \
uhd::_auto_timer::auto_timer ___at(context,0,unitScale);
/*!
* Inserts a timer that logs the duration (if exceeds threshold) of its existence (construction to destruction) and the context string to UHD_MSG
* \param context The context string to log in addition to the duration. String buffer MUST be maintained by caling code throughout lifetime of timer object.
* \param threshold Only if the lifetime of the timer exceeds this value will it be logged
* \param unitScale Report duration in ms or us (kUnitScaleMS or kUnitScaleUS)
*/
#define PROFILE_TIMING_WITH_THRESHOLD_AND_SCALE(context,threshold,unitScale) \
uhd::_auto_timer::auto_timer ___at(context,threshold,unitScale);
namespace uhd {
namespace _auto_timer {
static const uint64_t kUnitScaleMS = 1000;
static const uint64_t kUnitScaleUS = 1000000;
class auto_timer
{
public:
auto_timer(
const char* context,
uint64_t reporting_threshold = 0,
uint64_t unit_scale = kUnitScaleUS) :
_context(context),
_reporting_threshold(reporting_threshold),
_unit_scale(unit_scale)
{
::QueryPerformanceCounter(&_start_time);
switch (unit_scale)
{
case kUnitScaleMS:
_unit_scale_str = "ms";
break;
case kUnitScaleUS:
default:
_unit_scale_str = "us";
break;
}
}
~auto_timer()
{
LARGE_INTEGER freq;
uint64_t diff_time = 0;
::QueryPerformanceCounter(&_end_time);
QueryPerformanceFrequency(&freq);
diff_time =
(uint64_t)(_end_time.QuadPart - _start_time.QuadPart)*
_unit_scale /
freq.QuadPart;
if (diff_time >= _reporting_threshold)
{
UHD_MSG(status) << "^ " << _context << "\t" << std::dec << diff_time << _unit_scale_str << std::endl;
}
}
private:
// Usage
auto_timer();
auto_timer(const auto_timer&);
LARGE_INTEGER _start_time;
LARGE_INTEGER _end_time;
uint64_t _unit_scale;
uint64_t _reporting_threshold;
const char* _context;
char* _unit_scale_str;
}; // class auto_timer
}} //namespace uhd::_auto_timer
#else //non-windows platforms
#define PROFILE_TIMING(context)
#define PROFILE_TIMING_WITH_THRESHOLD(context,threshold)
#define PROFILE_TIMING_WITH_SCALE(context,unitScale)
#define PROFILE_TIMING_WITH_THRESHOLD_AND_SCALE(context,threshold,unitScale)
#endif
#endif /* INCLUDED_UHD_UTILS_AUTO_TIMER_HPP */
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