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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:21:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:21:29 +0000 |
commit | 29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc (patch) | |
tree | 63ef546b10a81d461e5cf5ed9e98a68cd7dee1aa /src/grep/gnulib-tests/test-nanosleep.c | |
parent | Initial commit. (diff) | |
download | kbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.tar.xz kbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.zip |
Adding upstream version 1:0.1.9998svn3589+dfsg.upstream/1%0.1.9998svn3589+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/grep/gnulib-tests/test-nanosleep.c')
-rw-r--r-- | src/grep/gnulib-tests/test-nanosleep.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/grep/gnulib-tests/test-nanosleep.c b/src/grep/gnulib-tests/test-nanosleep.c new file mode 100644 index 0000000..4464006 --- /dev/null +++ b/src/grep/gnulib-tests/test-nanosleep.c @@ -0,0 +1,83 @@ +/* Test of nanosleep() function. + Copyright (C) 2009-2021 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +/* Written by Eric Blake <ebb9@byu.net>, 2009. */ + +#include <config.h> + +#include <time.h> + +#include "signature.h" +SIGNATURE_CHECK (nanosleep, int, (struct timespec const *, struct timespec *)); + +#include <errno.h> +#include <signal.h> +#include <unistd.h> + +#include "macros.h" + +#if HAVE_DECL_ALARM +static void +handle_alarm (int sig) +{ + if (sig != SIGALRM) + _exit (1); +} +#endif + +int +main (void) +{ + struct timespec ts; + + ts.tv_sec = 1000; + ts.tv_nsec = -1; + errno = 0; + ASSERT (nanosleep (&ts, NULL) == -1); + ASSERT (errno == EINVAL); + ts.tv_nsec = 1000000000; + errno = 0; + ASSERT (nanosleep (&ts, NULL) == -1); + ASSERT (errno == EINVAL); + + ts.tv_sec = 0; + ts.tv_nsec = 1; + ASSERT (nanosleep (&ts, &ts) == 0); + /* Remaining time is only defined on EINTR failure; but on success, + it is typically either 0 or unchanged from input. At any rate, + it shouldn't be randomly changed to unrelated values. */ + ASSERT (ts.tv_sec == 0); + ASSERT (ts.tv_nsec == 0 || ts.tv_nsec == 1); + ts.tv_nsec = 0; + ASSERT (nanosleep (&ts, NULL) == 0); + +#if HAVE_DECL_ALARM + { + const time_t pentecost = 50 * 24 * 60 * 60; /* 50 days. */ + signal (SIGALRM, handle_alarm); + alarm (1); + ts.tv_sec = pentecost; + ts.tv_nsec = 999999999; + errno = 0; + ASSERT (nanosleep (&ts, &ts) == -1); + ASSERT (errno == EINTR); + ASSERT (pentecost - 10 < ts.tv_sec && ts.tv_sec <= pentecost); + ASSERT (0 <= ts.tv_nsec && ts.tv_nsec <= 999999999); + } +#endif + + return 0; +} |