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