Adding upstream version 5.2.37.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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77
lib/sh/times.c
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77
lib/sh/times.c
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/* times.c - times(3) library function */
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/* Copyright (C) 1999-2020 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Bash 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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You should have received a copy of the GNU General Public License
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along with Bash. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#if !defined (HAVE_TIMES)
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#include <sys/types.h>
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#include <posixtime.h>
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#include <systimes.h>
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#if defined (HAVE_SYS_RESOURCE_H) && defined (HAVE_GETRUSAGE)
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# include <sys/resource.h>
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#endif /* HAVE_SYS_RESOURCE_H && HAVE_GETRUSAGE */
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extern long get_clk_tck PARAMS((void));
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#define CONVTCK(r) (r.tv_sec * clk_tck + r.tv_usec / (1000000 / clk_tck))
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clock_t
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times(tms)
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struct tms *tms;
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{
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clock_t rv;
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static long clk_tck = -1;
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#if defined (HAVE_GETRUSAGE)
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struct timeval tv;
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struct rusage ru;
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if (clk_tck == -1)
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clk_tck = get_clk_tck();
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if (getrusage(RUSAGE_SELF, &ru) < 0)
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return ((clock_t)-1);
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tms->tms_utime = CONVTCK(ru.ru_utime);
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tms->tms_stime = CONVTCK(ru.ru_stime);
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if (getrusage(RUSAGE_CHILDREN, &ru) < 0)
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return ((clock_t)-1);
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tms->tms_cutime = CONVTCK(ru.ru_utime);
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tms->tms_cstime = CONVTCK(ru.ru_stime);
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if (gettimeofday(&tv, NULL) < 0)
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return ((clock_t)-1);
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rv = (clock_t)(CONVTCK(tv));
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#else /* !HAVE_GETRUSAGE */
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if (clk_tck == -1)
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clk_tck = get_clk_tck();
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/* We can't do anything. */
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tms->tms_utime = tms->tms_stime = (clock_t)0;
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tms->tms_cutime = tms->tms_cstime = (clock_t)0;
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rv = (clock_t)time((time_t *)0) * clk_tck;
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# endif /* HAVE_GETRUSAGE */
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return rv;
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}
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#endif /* !HAVE_TIMES */
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