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| author | Eric Blake <ebb9@byu.net> | 2009-11-18 20:07:44 -0700 |
|---|---|---|
| committer | Eric Blake <ebb9@byu.net> | 2009-11-20 07:10:22 -0700 |
| commit | 6baa46639c17d7fba1d6aa1a3dd8ed536b7b2dc9 (patch) | |
| tree | eac303353244b06ab50ddff551f46ec8d2230c26 /doc | |
| parent | 00b2f10b68593189be4eb1affd88de33a8e92fb3 (diff) | |
| download | gnulib-6baa46639c17d7fba1d6aa1a3dd8ed536b7b2dc9.tar.gz | |
sleep: work around cygwin bug
On cygwin 1.5.x, sleep amounts larger than 49.7 days (2**32
milliseconds) failed instantly, but with a garbage return
value from uninitialized memory.
* lib/sleep.c (rpl_sleep): Work around the bug.
* m4/sleep.m4 (gl_FUNC_SLEEP): Detect the bug.
(gl_PREREQ_SLEEP): Delete unused macro.
* modules/sleep (Depends-on): Add verify.
* m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Add default.
* modules/unistd (Makefile.am): Substitute witness.
* lib/unistd.in.h (sleep): Update prototype.
* doc/posix-functions/sleep.texi (sleep): Document the bug.
* tests/test-sleep.c (main) [HAVE_DECL_ALARM]: Test it.
* modules/sleep-tests (Depends-on): Check for alarm.
Signed-off-by: Eric Blake <ebb9@byu.net>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/posix-functions/sleep.texi | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/posix-functions/sleep.texi b/doc/posix-functions/sleep.texi index 9a7a74f0bd..6df8693842 100644 --- a/doc/posix-functions/sleep.texi +++ b/doc/posix-functions/sleep.texi @@ -15,6 +15,9 @@ mingw (2005 or newer). This function takes milliseconds as argument and returns @code{void} on some platforms: mingw (2005 and older). +@item +This function cannot sleep longer than 49.7 days on some platforms: +Cygwin 1.5.x. @end itemize Portability problems not fixed by Gnulib: |