diff options
Diffstat (limited to 'doc/pastposix-functions')
| -rw-r--r-- | doc/pastposix-functions/usleep.texi | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/doc/pastposix-functions/usleep.texi b/doc/pastposix-functions/usleep.texi index bb381520a6..8ca0da9e51 100644 --- a/doc/pastposix-functions/usleep.texi +++ b/doc/pastposix-functions/usleep.texi @@ -4,23 +4,25 @@ POSIX specification: @url{http://www.opengroup.org/susv3xsh/usleep.html} -Gnulib module: --- +Gnulib module: usleep Portability problems fixed by Gnulib: @itemize +@item +On some systems, @code{usleep} rejects attempts to sleep longer than 1 +second, as allowed by POSIX: +mingw. +@item +This function is missing on some platforms. However, the replacement +is designed to be lightweight, and may round to the neareset second; +use @code{select} or @code{nanosleep} if better resolution is needed: +IRIX 5.3, Solaris 2.4, older mingw, BeOS. @end itemize Portability problems not fixed by Gnulib: @itemize @item -This function is missing on some platforms: -IRIX 5.3, Solaris 2.4, older mingw, BeOS. -@item According to POSIX, the @code{usleep} function may interfere with the program's use of the @code{SIGALRM} signal. On Linux, it doesn't; on other platforms, it may. -@item -On some systems, @code{usleep} rejects attempts to sleep longer than 1 -second, as allowed by POSIX: -mingw. @end itemize |