ladybird/LibC/serenity.h
Robin Burchell 0dc9af5f7e Add clang-format file
Also run it across the whole tree to get everything using the One True Style.
We don't yet run this in an automated fashion as it's a little slow, but
there is a snippet to do so in makeall.sh.
2019-05-28 17:31:20 +02:00

37 lines
647 B
C++

#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