83 lines
3.2 KiB
C
Executable File
83 lines
3.2 KiB
C
Executable File
/*
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* Copyright (c) 2013-2016, Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors may be
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* used to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "guest_time.h"
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#include <time.h>
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// ****************************************************************************
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// Guest Time - Get
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// ================
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void guest_time_get( GuestTimeT* time )
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{
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#ifdef CLOCK_MONOTONIC_RAW
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clock_gettime(CLOCK_MONOTONIC_RAW, time);
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#else
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clock_gettime(CLOCK_MONOTONIC, time);
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#endif
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}
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// ****************************************************************************
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// ****************************************************************************
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// Guest Time - Get Elapsed Milliseconds
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// =====================================
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long guest_time_get_elapsed_ms( GuestTimeT* time )
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{
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GuestTimeT now;
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guest_time_get(&now);
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if (NULL == time)
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return ((now.tv_sec*1000) + (now.tv_nsec/1000000));
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else
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return (guest_time_delta_in_ms(&now, time));
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}
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// ****************************************************************************
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// ****************************************************************************
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// Guest Time - Delta in Milliseconds
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// ==================================
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long guest_time_delta_in_ms( GuestTimeT* end, GuestTimeT* start )
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{
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long start_in_ms = (start->tv_sec*1000) + (start->tv_nsec/1000000);
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long end_in_ms = (end->tv_sec*1000) + (end->tv_nsec/1000000);
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return (end_in_ms - start_in_ms);
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}
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// ****************************************************************************
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// ****************************************************************************
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// Guest Time - Convert Milliseconds
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// =================================
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void guest_time_convert_ms( long ms, GuestTimeT* time )
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{
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time->tv_sec = ms / 1000;
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time->tv_nsec = (ms % 1000) * 1000000;
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}
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// ****************************************************************************
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