Mercurial > hg > octave-lojdl > gnulib-hg
changeset 8227:8aa8914c86a3
* m4/nanosleep.m4 (gl_FUNC_NANOSLEEP): Check for a nanosleep that
loops on small arguments. This attempts to avoid the problem
Bruno Haible reported for AIX 4.3.2 in
<http://lists.gnu.org/archive/html/bug-gnulib/2007-02/msg00309.html>.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Sat, 24 Feb 2007 10:01:49 +0000 |
| parents | a02426de7f27 |
| children | 93084dc35013 |
| files | ChangeLog m4/nanosleep.m4 |
| diffstat | 2 files changed, 15 insertions(+), 2 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,10 @@ +2007-02-24 Paul Eggert <eggert@cs.ucla.edu> + + * m4/nanosleep.m4 (gl_FUNC_NANOSLEEP): Check for a nanosleep that + loops on small arguments. This attempts to avoid the problem + Bruno Haible reported for AIX 4.3.2 in + <http://lists.gnu.org/archive/html/bug-gnulib/2007-02/msg00309.html>. + 2007-02-23 Bruno Haible <bruno@clisp.org> * m4/perl.m4 (gl_PERL): Require version 5.005, not 5.003.
--- a/m4/nanosleep.m4 +++ b/m4/nanosleep.m4 @@ -60,14 +60,20 @@ static struct timespec ts_sleep; static struct timespec ts_remaining; static struct sigaction act; + if (! nanosleep) + return 1; act.sa_handler = check_for_SIGALRM; - sigemptyset (&act.sa_mask); + sigemptyset (&act.sa_mask); sigaction (SIGALRM, &act, NULL); + ts_sleep.tv_sec = 0; + ts_sleep.tv_nsec = 1; + alarm (1); + if (nanosleep (&ts_sleep, NULL) != 0) + return 1; ts_sleep.tv_sec = TYPE_MAXIMUM (time_t); ts_sleep.tv_nsec = 999999999; alarm (1); if (nanosleep (&ts_sleep, &ts_remaining) == -1 && errno == EINTR - && nanosleep && TYPE_MAXIMUM (time_t) - 10 < ts_remaining.tv_sec) return 0; return 119;