mirror of https://github.com/minetest/minetest.git
135 lines
3.0 KiB
C++
135 lines
3.0 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include "irrlichttypes.h"
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#include <cassert>
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#include <string>
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#include <map>
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#include <ostream>
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#include "threading/mutex_auto_lock.h"
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#include "util/timetaker.h"
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#include "util/numeric.h" // paging()
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// Global profiler
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class Profiler;
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extern Profiler *g_profiler;
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/*
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Time profiler
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*/
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class Profiler
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{
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public:
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Profiler();
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void add(const std::string &name, float value);
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void avg(const std::string &name, float value);
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void max(const std::string &name, float value);
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void clear();
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float getValue(const std::string &name) const;
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int getAvgCount(const std::string &name) const;
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u64 getElapsedMs() const;
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typedef std::map<std::string, float> GraphValues;
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// Returns the line count
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int print(std::ostream &o, u32 page = 1, u32 pagecount = 1);
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void getPage(GraphValues &o, u32 page, u32 pagecount);
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void graphSet(const std::string &id, float value)
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{
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MutexAutoLock lock(m_mutex);
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m_graphvalues[id] = value;
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}
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void graphAdd(const std::string &id, float value)
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{
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MutexAutoLock lock(m_mutex);
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auto it = m_graphvalues.find(id);
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if (it == m_graphvalues.end())
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m_graphvalues.emplace(id, value);
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else
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it->second += value;
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}
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void graphPop(GraphValues &result)
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{
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MutexAutoLock lock(m_mutex);
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assert(result.empty());
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std::swap(result, m_graphvalues);
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}
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void remove(const std::string& name)
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{
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MutexAutoLock lock(m_mutex);
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m_data.erase(name);
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}
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private:
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struct DataPair {
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float value = 0;
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int avgcount = 0;
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inline void reset() {
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value = 0;
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// negative values are used for type checking, so leave them alone
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if (avgcount >= 1)
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avgcount = 0;
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}
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inline float getValue() const {
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return avgcount >= 1 ? (value / avgcount) : value;
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}
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};
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std::mutex m_mutex;
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std::map<std::string, DataPair> m_data;
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std::map<std::string, float> m_graphvalues;
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u64 m_start_time;
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};
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enum ScopeProfilerType : u8
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{
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SPT_ADD = 1,
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SPT_AVG,
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SPT_GRAPH_ADD,
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SPT_MAX
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};
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// Note: this class should be kept lightweight.
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class ScopeProfiler
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{
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public:
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ScopeProfiler(Profiler *profiler, const std::string &name,
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ScopeProfilerType type = SPT_ADD,
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TimePrecision precision = PRECISION_MILLI);
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~ScopeProfiler();
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private:
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Profiler *m_profiler = nullptr;
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std::string m_name;
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u64 m_time1;
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ScopeProfilerType m_type;
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TimePrecision m_precision;
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};
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