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/* hires.h: Definitions for hires clock calculations
Copyright 2002 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef __HIRES_H__
#define __HIRES_H__
#include <mmsystem.h>
class hires_base
{
protected:
int inited;
virtual void prime () {}
public:
virtual LONGLONG usecs (bool justdelta) {return 0LL;}
virtual ~hires_base () {}
};
class hires_us : hires_base
{
LARGE_INTEGER primed_ft;
LARGE_INTEGER primed_pc;
double freq;
void prime ();
public:
LONGLONG usecs (bool justdelta);
};
class hires_ms : hires_base
{
DWORD initime_ms;
LARGE_INTEGER initime_us;
UINT minperiod;
void prime ();
public:
LONGLONG usecs (bool justdelta);
~hires_ms ();
};
#endif /*__HIRES_H__*/
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