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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OPAL_MCA_TIMER_WINDOWS_H
#define OPAL_MCA_TIMER_WINDOWS_H
#include "opal_config.h"
#include "windows.h"
#include <opal/sys/timer.h>
BEGIN_C_DECLS
OPAL_DECLSPEC extern opal_timer_t opal_timer_windows_freq;
OPAL_DECLSPEC extern opal_timer_t opal_timer_windows_start;
static inline opal_timer_t
opal_timer_base_get_cycles(void)
{
LARGE_INTEGER now;
QueryPerformanceCounter( &now );
return (now.QuadPart - opal_timer_windows_start);
}
static inline opal_timer_t
opal_timer_base_get_usec(void)
{
/* freq is in Hz, so this gives usec */
return opal_sys_timer_get_cycles() * 1000000 / opal_timer_windows_freq;
}
static inline opal_timer_t
opal_timer_base_get_freq(void)
{
return opal_timer_windows_freq;
}
#define OPAL_TIMER_CYCLE_NATIVE OPAL_HAVE_SYS_TIMER_GET_CYCLES
#define OPAL_TIMER_CYCLE_SUPPORTED OPAL_HAVE_SYS_TIMER_GET_CYCLES
#define OPAL_TIMER_USEC_NATIVE 0
#define OPAL_TIMER_USEC_SUPPORTED OPAL_HAVE_SYS_TIMER_GET_CYCLES
END_C_DECLS
#endif
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