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f896fc0f2b
commit 04deeaa9ea
Author: Lucas A. M. Magalhaes <lamm@linux.ibm.com>
Date: Fri Jul 10 19:41:06 2020 -0300
Fix time/tst-cpuclock1 intermitent failures
has 2 issues:
1. It assumes time_t == long which is false on x32.
2. tst-timespec.c is compiled without -fexcess-precision=standard which
generates incorrect results on i686 in support_timespec_check_in_range:
double ratio = (double)observed_norm / expected_norm;
return (lower_bound <= ratio && ratio <= upper_bound);
This patch does
1. Compile tst-timespec.c with -fexcess-precision=standard.
2. Replace long with time_t.
3. Replace LONG_MIN and LONG_MAX with TYPE_MINIMUM (time_t) and
TYPE_MAXIMUM (time_t).
88 lines
3.4 KiB
C
88 lines
3.4 KiB
C
/* Useful functions for tests that use struct timespec.
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Copyright (C) 2019-2020 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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<https://www.gnu.org/licenses/>. */
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#ifndef SUPPORT_TIMESPEC_H
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#define SUPPORT_TIMESPEC_H
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#include <stdio.h>
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#include <time.h>
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#include <support/check.h>
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#include <support/xtime.h>
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struct timespec timespec_add (struct timespec, struct timespec)
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__attribute__((const));
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struct timespec timespec_sub (struct timespec, struct timespec)
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__attribute__((const));
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static inline struct timespec
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make_timespec (time_t s, long int ns)
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{
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struct timespec r;
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r.tv_sec = s;
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r.tv_nsec = ns;
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return r;
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}
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enum { TIMESPEC_HZ = 1000000000 };
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void test_timespec_before_impl (const char *file, int line,
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const struct timespec left,
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const struct timespec right);
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void test_timespec_equal_or_after_impl (const char *file, int line,
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const struct timespec left,
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const struct timespec right);
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time_t support_timespec_ns (struct timespec time);
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struct timespec support_timespec_normalize (struct timespec time);
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int support_timespec_check_in_range (struct timespec expected, struct timespec observed,
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double lower_bound, double upper_bound);
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/* Check that the timespec on the left represents a time before the
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time on the right. */
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#define TEST_TIMESPEC_BEFORE(left, right) \
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test_timespec_before_impl (__FILE__, __LINE__, (left), (right))
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#define TEST_TIMESPEC_BEFORE_NOW(left, clockid) \
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({ \
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struct timespec now; \
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const int saved_errno = errno; \
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xclock_gettime ((clockid), &now); \
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TEST_TIMESPEC_BEFORE ((left), now); \
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errno = saved_errno; \
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})
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/* Check that the timespec on the left represents a time equal to or
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after the time on the right. */
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#define TEST_TIMESPEC_EQUAL_OR_AFTER(left, right) \
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test_timespec_equal_or_after_impl (__FILE__, __LINE__, left, right)
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#define TEST_TIMESPEC_NOW_OR_AFTER(clockid, right) \
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({ \
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struct timespec now; \
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const int saved_errno = errno; \
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xclock_gettime ((clockid), &now); \
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TEST_TIMESPEC_EQUAL_OR_AFTER (now, (right)); \
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errno = saved_errno; \
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})
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#endif /* SUPPORT_TIMESPEC_H */
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