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#ifndef CPU_TIME_H
#define CPU_TIME_H
#include <iostream>
// How much CPU time used (in seconds)?
double get_cpu_usage(void);
class CPUClock
{
private:
const char *name;
const char *func;
unsigned int count;
double start_time;
double last;
double total;
public:
CPUClock(const char *_name = 0, const char *_func = 0)
: name(_name), func(_func),
count(0), start_time(0), last(0), total(0)
{}
void start()
{
start_time = get_cpu_usage();
}
void stop()
{
last = get_cpu_usage() - start_time;
total += last;
count++;
}
double get_total() const
{
return total;
}
double get_last() const
{
return last;
}
double get_count() const
{
return count;
}
double get_average() const
{
return total / ( count ? count : 1);
}
const char *get_name() const
{
return name;
}
const char *get_function() const
{
return func;
}
};
std::ostream& operator<<(std::ostream &os, const CPUClock &clock);
char* strip_types(const char* pretty_func);
#define DEFINE_CPU_CLOCK(var) CPUClock var = CPUClock(#var, strip_types(__PRETTY_FUNCTION__))
#endif
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