summaryrefslogtreecommitdiff
path: root/gnulib/doc/pastposix-functions/usleep.texi
diff options
context:
space:
mode:
authorRichard Maw <richard.maw@codethink.co.uk>2012-01-17 14:43:55 +0000
committerRichard Maw <richard.maw@codethink.co.uk>2012-01-17 14:43:55 +0000
commit2de9abc5c9d40b3c716307d67d16146f823fd554 (patch)
tree6979db67934ddc8b564150b465846a383b428ff8 /gnulib/doc/pastposix-functions/usleep.texi
parent33cc1c6fda6e72a7bae1401e9b2cec495a4d3ff1 (diff)
downloadpatch-baserock/bootstrap-pass2.tar.gz
Diffstat (limited to 'gnulib/doc/pastposix-functions/usleep.texi')
m---------gnulib0
-rw-r--r--gnulib/doc/pastposix-functions/usleep.texi28
2 files changed, 28 insertions, 0 deletions
diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/doc/pastposix-functions/usleep.texi b/gnulib/doc/pastposix-functions/usleep.texi
new file mode 100644
index 0000000..468ec66
--- /dev/null
+++ b/gnulib/doc/pastposix-functions/usleep.texi
@@ -0,0 +1,28 @@
+@node usleep
+@section @code{usleep}
+@findex usleep
+
+POSIX specification: @url{http://www.opengroup.org/susv3xsh/usleep.html}
+
+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, MSVC 9, BeOS.
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@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.
+@end itemize