IABSD.fr/src/usr.bin/make/timestamp.h

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• Author : cheloha
  Date : 2024-04-09 15:08:21
  Hash : 7e440d19
  Message : make(1): inline set_times() into Job_Touch() set_times() has one caller: Job_Touch(). set_times() is a thin utimes(2) wrapper. Using utimes(2) to reset a file's atime/mtime to the current time is not cumbersome. So, remove set_times() and just call utimes(2) directly. Thread: https://marc.info/?l=openbsd-tech&m=171262211713835&w=2 ok kn@

• usr.bin/make/timestamp.h

• #ifndef TIMESTAMP_H
  #define TIMESTAMP_H
  
  /*	$OpenBSD: timestamp.h,v 1.12 2024/04/09 15:08:21 cheloha Exp $ */
  
  /*
   * Copyright (c) 2001 Marc Espie.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
   * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /* This module handles time stamps on files in a relatively high-level way.
   * Most of the interface is achieved through inlineable code.
   *
   * ts_set_out_of_date(t):	set up t so that it is out-of-date.
   * b = is_out_of_date(t):	check whether t is out-of-date.
   * ts_set_from_stat(s, t):	grab date out of stat(2) buffer.
   * b = is_strictly_before(t1, t2):
   *				check whether t1 is before t2.
   * ts_set_from_time_t(d, t):	create timestamp from time_t.
   */
  
  #define Init_Timestamp()	clock_gettime(CLOCK_REALTIME, &starttime)
  
  #define TMIN (sizeof(time_t) == sizeof(int32_t) ? INT32_MIN : INT64_MIN)
  #define ts_set_out_of_date(t)	(t).tv_sec = TMIN, (t).tv_nsec = 0
  #define is_out_of_date(t)	((t).tv_sec == TMIN && (t).tv_nsec == 0)
  
  #define ts_set_from_stat(s, t) \
  do { \
  	(t) = (s).st_mtim; \
  	if (is_out_of_date(t)) \
  		(t).tv_nsec++; \
  } while (0)
  #define is_strictly_before(t1, t2)	timespeccmp(&(t1), &(t2), <)
  #define ts_set_from_time_t(d, t) \
  do { \
  	(t).tv_sec = d; \
  	(t).tv_nsec = 0; \
  	if (is_out_of_date(t)) \
  		(t).tv_nsec++; \
  } while (0)
  
  extern struct timespec starttime;	/* The time at the start 
  					 * of this whole process */
  extern char *time_to_string(struct timespec *);
  
  
  #endif