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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-08-21 05:23:24 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-08-21 05:23:24 +0000 |
commit | a3ec215973c3653ebdeb81dcdd1274519c376a3d (patch) | |
tree | dc0edc2133786db0565f19d51c4a9957dd69e2ac /gnulib-tests/test-stat-time.c | |
download | diffutils-tarball-a3ec215973c3653ebdeb81dcdd1274519c376a3d.tar.gz |
diffutils-3.5HEADdiffutils-3.5master
Diffstat (limited to 'gnulib-tests/test-stat-time.c')
-rw-r--r-- | gnulib-tests/test-stat-time.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/gnulib-tests/test-stat-time.c b/gnulib-tests/test-stat-time.c new file mode 100644 index 0000000..c60ee7a --- /dev/null +++ b/gnulib-tests/test-stat-time.c @@ -0,0 +1,224 @@ +/* Test of <stat-time.h>. + Copyright (C) 2007-2016 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 <http://www.gnu.org/licenses/>. */ + +/* Written by James Youngman <jay@gnu.org>, 2007. */ + +#include <config.h> + +#include "stat-time.h" + +#include <fcntl.h> +#include <signal.h> +#include <sys/stat.h> +#include <unistd.h> + +#include "macros.h" + +#define BASE "test-stat-time.t" +#include "nap.h" + +enum { NFILES = 4 }; + +static int +force_unlink (const char *filename) +{ + /* This chmod is necessary on mingw, where unlink() of a read-only file + fails with EPERM. */ + chmod (filename, 0600); + return unlink (filename); +} + +static void +cleanup (int sig) +{ + /* Remove temporary files. */ + force_unlink ("t-stt-stamp1"); + force_unlink ("t-stt-testfile"); + force_unlink ("t-stt-stamp2"); + force_unlink ("t-stt-renamed"); + force_unlink ("t-stt-stamp3"); + + if (sig != 0) + _exit (1); +} + +static int +open_file (const char *filename, int flags) +{ + int fd = open (filename, flags | O_WRONLY, 0500); + if (fd >= 0) + { + close (fd); + return 1; + } + else + { + return 0; + } +} + +static void +create_file (const char *filename) +{ + ASSERT (open_file (filename, O_CREAT | O_EXCL)); +} + +static void +do_stat (const char *filename, struct stat *p) +{ + ASSERT (stat (filename, p) == 0); +} + +static void +prepare_test (struct stat *statinfo, struct timespec *modtimes) +{ + int i; + + create_file ("t-stt-stamp1"); + nap (); + create_file ("t-stt-testfile"); + nap (); + create_file ("t-stt-stamp2"); + nap (); + ASSERT (chmod ("t-stt-testfile", 0400) == 0); + nap (); + create_file ("t-stt-stamp3"); + + do_stat ("t-stt-stamp1", &statinfo[0]); + do_stat ("t-stt-testfile", &statinfo[1]); + do_stat ("t-stt-stamp2", &statinfo[2]); + do_stat ("t-stt-stamp3", &statinfo[3]); + + /* Now use our access functions. */ + for (i = 0; i < NFILES; ++i) + { + modtimes[i] = get_stat_mtime (&statinfo[i]); + } +} + +static void +test_mtime (const struct stat *statinfo, struct timespec *modtimes) +{ + int i; + + /* Use the struct stat fields directly. */ + /* mtime(stamp1) < mtime(stamp2) */ + ASSERT (statinfo[0].st_mtime < statinfo[2].st_mtime + || (statinfo[0].st_mtime == statinfo[2].st_mtime + && (get_stat_mtime_ns (&statinfo[0]) + < get_stat_mtime_ns (&statinfo[2])))); + /* mtime(stamp2) < mtime(stamp3) */ + ASSERT (statinfo[2].st_mtime < statinfo[3].st_mtime + || (statinfo[2].st_mtime == statinfo[3].st_mtime + && (get_stat_mtime_ns (&statinfo[2]) + < get_stat_mtime_ns (&statinfo[3])))); + + /* Now check the result of the access functions. */ + /* mtime(stamp1) < mtime(stamp2) */ + ASSERT (modtimes[0].tv_sec < modtimes[2].tv_sec + || (modtimes[0].tv_sec == modtimes[2].tv_sec + && modtimes[0].tv_nsec < modtimes[2].tv_nsec)); + /* mtime(stamp2) < mtime(stamp3) */ + ASSERT (modtimes[2].tv_sec < modtimes[3].tv_sec + || (modtimes[2].tv_sec == modtimes[3].tv_sec + && modtimes[2].tv_nsec < modtimes[3].tv_nsec)); + + /* verify equivalence */ + for (i = 0; i < NFILES; ++i) + { + struct timespec ts; + ts = get_stat_mtime (&statinfo[i]); + ASSERT (ts.tv_sec == statinfo[i].st_mtime); + } +} + +#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__ +/* Skip the ctime tests on native Windows platforms, because their + st_ctime is either the same as st_mtime (plus or minus an offset) + or set to the file _creation_ time, and is not influenced by rename + or chmod. */ +# define test_ctime(ignored) ((void) 0) +#else +static void +test_ctime (const struct stat *statinfo) +{ + /* On some buggy NFS clients, mtime and ctime are disproportionately + skewed from one another. Skip this test in that case. */ + if (statinfo[0].st_mtime != statinfo[0].st_ctime) + return; + + /* mtime(stamp2) < ctime(renamed) */ + ASSERT (statinfo[2].st_mtime < statinfo[1].st_ctime + || (statinfo[2].st_mtime == statinfo[1].st_ctime + && (get_stat_mtime_ns (&statinfo[2]) + < get_stat_ctime_ns (&statinfo[1])))); +} +#endif + +static void +test_birthtime (const struct stat *statinfo, + const struct timespec *modtimes, + struct timespec *birthtimes) +{ + int i; + + /* Collect the birth times. */ + for (i = 0; i < NFILES; ++i) + { + birthtimes[i] = get_stat_birthtime (&statinfo[i]); + if (birthtimes[i].tv_nsec < 0) + return; + } + + /* mtime(stamp1) < birthtime(renamed) */ + ASSERT (modtimes[0].tv_sec < birthtimes[1].tv_sec + || (modtimes[0].tv_sec == birthtimes[1].tv_sec + && modtimes[0].tv_nsec < birthtimes[1].tv_nsec)); + /* birthtime(renamed) < mtime(stamp2) */ + ASSERT (birthtimes[1].tv_sec < modtimes[2].tv_sec + || (birthtimes[1].tv_sec == modtimes[2].tv_sec + && birthtimes[1].tv_nsec < modtimes[2].tv_nsec)); +} + +int +main (void) +{ + struct stat statinfo[NFILES]; + struct timespec modtimes[NFILES]; + struct timespec birthtimes[NFILES]; + +#ifdef SIGHUP + signal (SIGHUP, cleanup); +#endif +#ifdef SIGINT + signal (SIGINT, cleanup); +#endif +#ifdef SIGQUIT + signal (SIGQUIT, cleanup); +#endif +#ifdef SIGTERM + signal (SIGTERM, cleanup); +#endif + + cleanup (0); + prepare_test (statinfo, modtimes); + test_mtime (statinfo, modtimes); + test_ctime (statinfo); + test_birthtime (statinfo, modtimes, birthtimes); + + cleanup (0); + return 0; +} |