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