建立工程,成功创建两个虚拟串口
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34
source/OpenAMP/libmetal/lib/system/linux/time.c
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34
source/OpenAMP/libmetal/lib/system/linux/time.c
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/*
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* Copyright (c) 2016, Xilinx Inc. and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/*
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* @file linux/time.c
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* @brief Linux libmetal time handling.
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*/
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#include <unistd.h>
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#include <time.h>
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#include <metal/time.h>
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#define NS_PER_S (1000 * 1000 * 1000)
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unsigned long long metal_get_timestamp(void)
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{
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unsigned long long t = 0;
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struct timespec tp;
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int r;
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r = clock_gettime(CLOCK_MONOTONIC, &tp);
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if (r == -1) {
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metal_log(METAL_LOG_ERROR,"clock_gettime failed!\n");
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return t;
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} else {
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t = tp.tv_sec * (NS_PER_S);
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t += tp.tv_nsec;
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}
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return t;
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}
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