Mercurial > hg > octave-shane > gnulib-hg
annotate modules/sleep @ 17388:3c592b4deb04
utimensat-tests, etc.: try to fix some races
Problem reported by Bernhard Voelker in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-04/msg00071.html>.
I don't know whether this patch fixes that race condition, but it
fixes *some* race conditions, so it should be a win.
* modules/chown-tests (Depends-on):
* modules/fchownat-tests (Depends-on):
* modules/fdutimensat-tests (Depends-on):
* modules/futimens-tests (Depends-on):
* modules/lchown-tests (Depends-on):
* modules/stat-time-tests (Depends-on):
* modules/utimens-tests (Depends-on):
* modules/utimensat-tests (Depends-on):
Depend on nanosleep, not usleep.
* modules/chown-tests (test_chown_LDADD):
* modules/lchown-tests (test_lchown_LDADD):
* modules/stat-time-tests (test_stat_time_LDADD):
New macro.
* modules/fchownat-tests (test_fchownat_LDADD):
* modules/fdutimensat-tests (test_fdutimensat_LDADD):
* modules/futimens-tests (test_futimens_LDADD):
* modules/utimens-tests (test_utimens_LDADD):
* modules/utimensat-tests (test_utimensat_LDADD):
Add $(LIB_NANOSLEEP).
* modules/stat-time-tests (Files): Add tests/nap.h.
* tests/nap.h: Include <limits.h>, for INT_MAX.
(lt_mtime): Remove.
(diff_timespec): New function.
(get_stat): Rename from get_mtime. All callers changed.
(nap_works): Determine the needed delay by inspecting the
file system's timestamp jumps; this should be more reliable.
Look at both mtime and ctime, and take the maximum of the two jumps.
(nap_works, guess_delay):
Return a nanosecond cound, not a microsecond count.
All callers changed.
(nap_works, nap): Use nanosleep, not usleep. Check for nanosleep
failure.
(nap): Multiply the guess by 1.125, to accommodate the case where
the file system's clock is a bit slower than nanosleep's clock.
* tests/test-stat-time.c (BASE): New macro.
Include nap.h.
(nap): Remove; nap.h now defines this. This removes a duplicate
implementation of 'nap'.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Tue, 30 Apr 2013 23:14:19 -0700 |
| parents | a81da81ea7f2 |
| children |
| rev | line source |
|---|---|
| 8786 | 1 Description: |
| 2 sleep() function: pause execution of the current thread. | |
| 3 | |
| 4 Files: | |
| 5 lib/sleep.c | |
| 6 m4/sleep.m4 | |
| 7 | |
| 8 Depends-on: | |
| 9 unistd | |
|
14683
efab6978105e
Avoid unnecessary compilation units, through conditional dependencies.
Bruno Haible <bruno@clisp.org>
parents:
12326
diff
changeset
|
10 stdint [test $HAVE_SLEEP = 0 || test $REPLACE_SLEEP = 1] |
|
efab6978105e
Avoid unnecessary compilation units, through conditional dependencies.
Bruno Haible <bruno@clisp.org>
parents:
12326
diff
changeset
|
11 verify [test $HAVE_SLEEP = 0 || test $REPLACE_SLEEP = 1] |
| 8786 | 12 |
| 13 configure.ac: | |
| 14 gl_FUNC_SLEEP | |
|
15096
a81da81ea7f2
sleep: Move AC_LIBOBJ invocations to module description.
Bruno Haible <bruno@clisp.org>
parents:
14683
diff
changeset
|
15 if test $HAVE_SLEEP = 0 || test $REPLACE_SLEEP = 1; then |
|
a81da81ea7f2
sleep: Move AC_LIBOBJ invocations to module description.
Bruno Haible <bruno@clisp.org>
parents:
14683
diff
changeset
|
16 AC_LIBOBJ([sleep]) |
|
a81da81ea7f2
sleep: Move AC_LIBOBJ invocations to module description.
Bruno Haible <bruno@clisp.org>
parents:
14683
diff
changeset
|
17 fi |
| 8786 | 18 gl_UNISTD_MODULE_INDICATOR([sleep]) |
| 19 | |
| 20 Makefile.am: | |
| 21 | |
| 22 Include: | |
| 23 <unistd.h> | |
| 24 | |
| 25 License: | |
| 10576 | 26 LGPLv2+ |
| 8786 | 27 |
| 28 Maintainer: | |
| 29 Bruno Haible | |
| 30 |