建立工程,成功创建两个虚拟串口

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ranchuan
2023-06-21 18:00:56 +08:00
commit 3604192d8f
872 changed files with 428764 additions and 0 deletions

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