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This test verifies the sanity of ftime and exposes bugs such as BZ 2014-09-17 Arjun Shankar <arjun.is@lostca.se> * time/tst-ftime.c: New test. * time/Makefile (tests): Add tst-ftime.
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* Verify that ftime is sane.
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Copyright (C) 2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sys/timeb.h>
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#include <stdio.h>
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static int
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do_test (void)
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{
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struct timeb prev, curr = {.time = 0, .millitm = 0};
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int sec = 0;
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while (sec != 3)
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{
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prev = curr;
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if (ftime (&curr))
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{
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printf ("ftime returned an error\n");
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return 1;
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}
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if (curr.time < prev.time)
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{
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printf ("ftime's time flowed backwards\n");
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return 1;
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}
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if (curr.time == prev.time
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&& curr.millitm < prev.millitm)
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{
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printf ("ftime's millitm flowed backwards\n");
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return 1;
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}
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if (curr.time > prev.time)
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sec ++;
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}
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return 0;
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}
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#define TIMEOUT 3
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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