(split) LDP: Update original to LDP v3.65

[linuxjm/LDP_man-pages.git] / original / man2 / select.2

diff --git a/original/man2/select.2 b/original/man2/select.2
index dfe58b7..8dd85ac 100644 (file)
--- a/original/man2/select.2
+++ b/original/man2/select.2
@@ -35,7 +35,7 @@
 .\" 2005-03-11, mtk, modified pselect() text (it is now a system
 .\"     call in 2.6.16.
 .\"
-.TH SELECT 2 2012-08-17 "Linux" "Linux Programmer's Manual"
+.TH SELECT 2 2014-01-31 "Linux" "Linux Programmer's Manual"
 .SH NAME
 select, pselect, FD_CLR, FD_ISSET, FD_SET, FD_ZERO \-
 synchronous I/O multiplexing
@@ -159,12 +159,22 @@ is the highest-numbered file descriptor in any of the three sets, plus 1.
 .PP
 The
 .I timeout
-argument specifies the minimum interval that
+argument specifies the interval that
 .BR select ()
 should block waiting for a file descriptor to become ready.
-(This interval will be rounded up to the system clock granularity,
+The call will block until either:
+.IP * 3
+a file descriptor becomes ready;
+.IP *
+the call is interrupted by a signal handler; or
+.IP *
+the timeout expires.
+.PP
+Note that the
+.I timeout
+interval will be rounded up to the system clock granularity,
 and kernel scheduling delays mean that the blocking interval
-may overrun by a small amount.)
+may overrun by a small amount.
 If both fields of the
 .I timeval
 structure are zero, then
@@ -299,10 +309,11 @@ descriptor sets (that is, the total number of bits that are set in
 which may be zero if the timeout expires before anything interesting happens.
 On error, \-1 is returned, and
 .I errno
-is set appropriately; the sets and
+is set to indicate the error;
+the file descriptor sets are unmodified,
+and
 .I timeout
-become undefined, so do not
-rely on their contents after an error.
+becomes undefined.
 .SH ERRORS
 .TP
 .B EBADF
@@ -585,3 +596,11 @@ main(void)
 
 For a tutorial with discussion and examples, see
 .BR select_tut (2).
+.SH COLOPHON
+This page is part of release 3.65 of the Linux
+.I man-pages
+project.
+A description of the project,
+and information about reporting bugs,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.