mirror of
https://github.com/NVIDIA/cuda-samples.git
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68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
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/* Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <time.h>
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#if defined (__QNX__)
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#include <sys/time.h>
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#endif
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#include "misc_utils.h"
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uint32_t
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u32(const uint8_t* ptr)
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{
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return ptr[0] | (ptr[1]<<8) | (ptr[2]<<16) | (ptr[3]<<24);
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}
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NvMediaStatus
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GetTimeMicroSec(
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uint64_t *uTime)
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{
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struct timespec t;
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#if !(defined(CLOCK_MONOTONIC) && defined(_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 && _POSIX_TIMERS > 0)
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struct timeval tv;
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#endif
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if(!uTime)
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return NVMEDIA_STATUS_BAD_PARAMETER;
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#if !(defined(CLOCK_MONOTONIC) && defined(_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 && _POSIX_TIMERS > 0)
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gettimeofday(&tv, NULL);
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t.tv_sec = tv.tv_sec;
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t.tv_nsec = tv.tv_usec*1000L;
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#else
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clock_gettime(CLOCK_MONOTONIC, &t);
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#endif
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*uTime = (uint64_t)t.tv_sec * 1000000LL + (uint64_t)t.tv_nsec / 1000LL;
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return NVMEDIA_STATUS_OK;
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}
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