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65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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* tio - a simple TTY terminal I/O application
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*
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* Copyright (c) 2014-2017 Martin Lund
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include "config.h"
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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 <time.h>
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#include <sys/time.h>
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#include "tio/error.h"
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#include "tio/print.h"
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// "YYYY-MM-DDThh:mm:ss.sss" (ISO-8601 format).
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#define TIME_STRING_SIZE 24
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char * current_time(void)
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{
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static char time_string[TIME_STRING_SIZE];
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struct tm *tmp;
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struct timeval tv;
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gettimeofday(&tv,NULL);
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tmp = localtime(&tv.tv_sec);
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if (tmp == NULL)
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{
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error_printf("Retrieving local time failed");
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exit(EXIT_FAILURE);
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}
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size_t len = strftime(time_string, sizeof(time_string), "%Y-%m-%dT%H:%M:%S", tmp);
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if (len) {
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len = snprintf(time_string + len, TIME_STRING_SIZE - len, ".%03ld", (long)tv.tv_usec / 1000);
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}
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return (len >= 0) && (len < TIME_STRING_SIZE) ? time_string : NULL;
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}
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void delay(long ms)
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{
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struct timespec ts;
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ts.tv_sec = ms / 1000;
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ts.tv_nsec = (ms % 1000) * 1000000;
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nanosleep(&ts, NULL);
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}
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