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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef PROFILER_HEADER
#define PROFILER_HEADER
#include "irrlichttypes.h"
#include <string>
#include <map>
#include "jthread/jmutex.h"
#include "jthread/jmutexautolock.h"
#include "util/timetaker.h"
#include "util/numeric.h" // paging()
#include "debug.h" // assert()
#define MAX_PROFILER_TEXT_ROWS 20
// Global profiler
class Profiler;
extern Profiler *g_profiler;
/*
Time profiler
*/
class Profiler
{
public:
Profiler()
{
}
void add(const std::string &name, float value)
{
JMutexAutoLock lock(m_mutex);
{
/* No average shall have been used; mark add used as -2 */
std::map<std::string, int>::iterator n = m_avgcounts.find(name);
if(n == m_avgcounts.end())
m_avgcounts[name] = -2;
else{
if(n->second == -1)
n->second = -2;
assert(n->second == -2);
}
}
{
std::map<std::string, float>::iterator n = m_data.find(name);
if(n == m_data.end())
m_data[name] = value;
else
n->second += value;
}
}
void avg(const std::string &name, float value)
{
JMutexAutoLock lock(m_mutex);
int &count = m_avgcounts[name];
assert(count != -2);
count = MYMAX(count, 0) + 1;
m_data[name] += value;
}
void clear()
{
JMutexAutoLock lock(m_mutex);
for(std::map<std::string, float>::iterator
i = m_data.begin();
i != m_data.end(); ++i)
{
i->second = 0;
}
m_avgcounts.clear();
}
void print(std::ostream &o)
{
printPage(o, 1, 1);
}
float getValue(const std::string &name) const
{
std::map<std::string, float>::const_iterator numerator = m_data.find(name);
if (numerator == m_data.end())
return 0.f;
std::map<std::string, int>::const_iterator denominator = m_avgcounts.find(name);
if (denominator != m_avgcounts.end()){
if (denominator->second >= 1)
return numerator->second / denominator->second;
}
return numerator->second;
}
void printPage(std::ostream &o, u32 page, u32 pagecount)
{
JMutexAutoLock lock(m_mutex);
u32 minindex, maxindex;
paging(m_data.size(), page, pagecount, minindex, maxindex);
for(std::map<std::string, float>::iterator
i = m_data.begin();
i != m_data.end(); ++i)
{
if(maxindex == 0)
break;
maxindex--;
if(minindex != 0)
{
minindex--;
continue;
}
std::string name = i->first;
int avgcount = 1;
std::map<std::string, int>::iterator n = m_avgcounts.find(name);
if(n != m_avgcounts.end()){
if(n->second >= 1)
avgcount = n->second;
}
o<<" "<<name<<": ";
s32 clampsize = 40;
s32 space = clampsize - name.size();
for(s32 j=0; j<space; j++)
{
if(j%2 == 0 && j < space - 1)
o<<"-";
else
o<<" ";
}
o<<(i->second / avgcount);
o<<std::endl;
}
}
typedef std::map<std::string, float> GraphValues;
void graphAdd(const std::string &id, float value)
{
JMutexAutoLock lock(m_mutex);
std::map<std::string, float>::iterator i =
m_graphvalues.find(id);
if(i == m_graphvalues.end())
m_graphvalues[id] = value;
else
i->second += value;
}
void graphGet(GraphValues &result)
{
JMutexAutoLock lock(m_mutex);
result = m_graphvalues;
m_graphvalues.clear();
}
void remove(const std::string& name)
{
JMutexAutoLock lock(m_mutex);
m_avgcounts.erase(name);
m_data.erase(name);
}
private:
JMutex m_mutex;
std::map<std::string, float> m_data;
std::map<std::string, int> m_avgcounts;
std::map<std::string, float> m_graphvalues;
};
enum ScopeProfilerType{
SPT_ADD,
SPT_AVG,
SPT_GRAPH_ADD
};
class ScopeProfiler
{
public:
ScopeProfiler(Profiler *profiler, const std::string &name,
enum ScopeProfilerType type = SPT_ADD):
m_profiler(profiler),
m_name(name),
m_timer(NULL),
m_type(type)
{
if(m_profiler)
m_timer = new TimeTaker(m_name.c_str());
}
// name is copied
ScopeProfiler(Profiler *profiler, const char *name,
enum ScopeProfilerType type = SPT_ADD):
m_profiler(profiler),
m_name(name),
m_timer(NULL),
m_type(type)
{
if(m_profiler)
m_timer = new TimeTaker(m_name.c_str());
}
~ScopeProfiler()
{
if(m_timer)
{
float duration_ms = m_timer->stop(true);
float duration = duration_ms / 1000.0;
if(m_profiler){
switch(m_type){
case SPT_ADD:
m_profiler->add(m_name, duration);
break;
case SPT_AVG:
m_profiler->avg(m_name, duration);
break;
case SPT_GRAPH_ADD:
m_profiler->graphAdd(m_name, duration);
break;
}
}
delete m_timer;
}
}
private:
Profiler *m_profiler;
std::string m_name;
TimeTaker *m_timer;
enum ScopeProfilerType m_type;
};
#endif
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