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Diffstat (limited to 'support/timespec.h')
| -rw-r--r-- | support/timespec.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/support/timespec.h b/support/timespec.h new file mode 100644 index 0000000000..4a8b341c5a --- /dev/null +++ b/support/timespec.h @@ -0,0 +1,79 @@ +/* Useful functions for tests that use struct timespec. + Copyright (C) 2019 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef SUPPORT_TIMESPEC_H +#define SUPPORT_TIMESPEC_H + +#include <stdio.h> +#include <time.h> +#include <support/check.h> +#include <support/xtime.h> + +struct timespec timespec_add (struct timespec, struct timespec) + __attribute__((const)); +struct timespec timespec_sub (struct timespec, struct timespec) + __attribute__((const)); + +static inline struct timespec +make_timespec (time_t s, long int ns) +{ + struct timespec r; + r.tv_sec = s; + r.tv_nsec = ns; + return r; +} + +enum { TIMESPEC_HZ = 1000000000 }; + +void test_timespec_before_impl (const char *file, int line, + const struct timespec left, + const struct timespec right); + +void test_timespec_equal_or_after_impl (const char *file, int line, + const struct timespec left, + const struct timespec right); + +/* Check that the timespec on the left represents a time before the + time on the right. */ +#define TEST_TIMESPEC_BEFORE(left, right) \ + test_timespec_before_impl (__FILE__, __LINE__, (left), (right)) + +#define TEST_TIMESPEC_BEFORE_NOW(left, clockid) \ + ({ \ + struct timespec now; \ + const int saved_errno = errno; \ + xclock_gettime ((clockid), &now); \ + TEST_TIMESPEC_BEFORE ((left), now); \ + errno = saved_errno; \ + }) + +/* Check that the timespec on the left represents a after before the + time on the right. */ +#define TEST_TIMESPEC_EQUAL_OR_AFTER(left, right) \ + test_timespec_equal_or_after_impl (__FILE__, __LINE__, left, right) + +#define TEST_TIMESPEC_NOW_OR_AFTER(clockid, right) \ + ({ \ + struct timespec now; \ + const int saved_errno = errno; \ + xclock_gettime ((clockid), &now); \ + TEST_TIMESPEC_EQUAL_OR_AFTER (now, (right)); \ + errno = saved_errno; \ + }) + +#endif /* SUPPORT_TIMESPEC_H */ |