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#pragma once
#include <stdio.h>
#include <unistd.h>
#ifdef __cplusplus
struct Stopwatch {
union SplitQword {
struct {
uint32_t lsw;
uint32_t msw;
};
uint64_t qw { 0 };
};
public:
Stopwatch(const char* name)
: m_name(name)
{
read_tsc(&m_start.lsw, &m_start.msw);
}
~Stopwatch()
{
SplitQword end;
read_tsc(&end.lsw, &end.msw);
uint64_t diff = end.qw - m_start.qw;
dbgprintf("Stopwatch(%s): %Q ticks\n", m_name, diff);
}
private:
const char* m_name { nullptr };
SplitQword m_start;
};
#endif // __cplusplus
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