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124 lines
4.4 KiB
C++
124 lines
4.4 KiB
C++
//////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2023 Jon Beniston, M7RCE <jon@beniston.com> //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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//////////////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDE_UTIL_PROFILEDATA_H_
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#define INCLUDE_UTIL_PROFILEDATA_H_
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#include <QHash>
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#include <QMutex>
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#include <QElapsedTimer>
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#include <cmath>
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#include "export.h"
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// Profiler enables runtime collection of profile data (time taken to execute code)
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// that can be displayed in the GUI
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//
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// PROFILER_START() and PROFILER_STOP() macros should be used in the same function:
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// void func() {
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// PROFILER_START()
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// do_something();
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// PROFILER_STOP("slow_code")
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// }
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//
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// The parameters to PROFILER_STOP are:
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// name: Name for the code being profiled. Profiles using the same name are averaged.
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#ifdef ENABLE_PROFILER
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#define PROFILER_START() \
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QElapsedTimer profileTimer; \
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profileTimer.start();
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#define PROFILER_RESTART() \
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profileTimer.start();
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#define PROFILER_STOP(name) \
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{ \
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qint64 timeNanoSec = profileTimer.nsecsElapsed(); \
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QHash<QString, ProfileData>& globalData = GlobalProfileData::getProfileData(); \
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if (!globalData.contains(name)) { \
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globalData.insert(name, ProfileData()); \
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} \
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ProfileData& profileData = globalData[name]; \
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profileData.add(timeNanoSec); \
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GlobalProfileData::releaseProfileData(); \
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}
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#else
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#define PROFILER_START()
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#define PROFILER_RESTART()
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#define PROFILER_STOP(name)
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#endif
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class ProfileData
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{
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public:
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ProfileData() :
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m_numSamples(0),
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m_last(0),
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m_total(0)
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{ }
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void reset()
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{
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m_numSamples = 0;
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m_total = 0;
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}
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void add(qint64 sample)
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{
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m_last = sample;
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m_total += sample;
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m_numSamples++;
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}
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double getAverage() const
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{
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if (m_numSamples > 0) {
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return m_total / (double)m_numSamples;
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} else {
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return nan("");
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}
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}
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qint64 getTotal() const { return m_total; }
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qint64 getLast() const { return m_last; }
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quint64 getNumSamples() const { return m_numSamples; }
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private:
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quint64 m_numSamples;
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qint64 m_last;
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qint64 m_total;
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};
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// Global thread-safe profile data that can be displayed in the GUI
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class SDRBASE_API GlobalProfileData
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{
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public:
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// Calls to getProfileData must be paired with releaseProfileData
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static QHash<QString, ProfileData>& getProfileData();
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static void releaseProfileData();
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static void resetProfileData();
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private:
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static QHash<QString, ProfileData> m_profileData;
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static QMutex m_mutex;
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};
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#endif /* INCLUDE_UTIL_PROFILEDATA_H_ */
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