timestamp.c

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    1 /*
    2  * CDDL HEADER START
    3  *
    4  * The contents of this file are subject to the terms of the
    5  * Common Development and Distribution License (the "License").
    6  * You may not use this file except in compliance with the License.
    7  *
    8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
    9  * or https://opensource.org/licenses/CDDL-1.0.
   10  * See the License for the specific language governing permissions
   11  * and limitations under the License.
   12  *
   13  * When distributing Covered Code, include this CDDL HEADER in each
   14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
   15  * If applicable, add the following below this CDDL HEADER, with the
   16  * fields enclosed by brackets "[]" replaced with your own identifying
   17  * information: Portions Copyright [yyyy] [name of copyright owner]
   18  *
   19  * CDDL HEADER END
   20  */
   21 /*
   22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   23  * Use is subject to license terms.
   24  */
   25 
   26 #include <stdio.h>
   27 #include <time.h>
   28 #include <langinfo.h>
   29 #include "statcommon.h"
   30 
   31 #ifndef _DATE_FMT
   32 #ifdef D_T_FMT
   33 #define _DATE_FMT D_T_FMT
   34 #else /* D_T_FMT */
   35 #define _DATE_FMT "%+"
   36 #endif /* !D_T_FMT */
   37 #endif /* _DATE_FMT */
   38 
   39 /*
   40  * Print timestamp as decimal reprentation of time_t value (-T u was specified)
   41  * or in date(1) format (-T d was specified).
   42  */
   43 void
   44 print_timestamp(uint_t timestamp_fmt)
   45 {
   46         time_t t = time(NULL);
   47         static const char *fmt = NULL;
   48 
   49         /* We only need to retrieve this once per invocation */
   50         if (fmt == NULL)
   51                 fmt = nl_langinfo(_DATE_FMT);
   52 
   53         if (timestamp_fmt == UDATE) {
   54                 (void) printf("%lld\n", (longlong_t)t);
   55         } else if (timestamp_fmt == DDATE) {
   56                 char dstr[64];
   57                 struct tm tm;
   58                 int len;
   59 
   60                 len = strftime(dstr, sizeof (dstr), fmt, localtime_r(&t, &tm));
   61                 if (len > 0)
   62                         (void) printf("%s\n", dstr);
   63         }
   64 }

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FreeBSD/Linux Kernel Cross Reference sys/contrib/openzfs/lib/libspl/timestamp.c

FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/lib/libspl/timestamp.c