set_thread_area — Set a Thread Local Storage (TLS) area
#include <linux/unistd.h> #include <asm/ldt.h>
int
set_thread_area( |
struct user_desc * | u_info); |
set_thread_area() sets an
entry in the current thread's Thread Local Storage (TLS)
array. The TLS array entry set by set_thread_area() corresponds to the value
of u_info−>entry_number
passed in by the user. If this value is in bounds,
set_thread_area() copies the
TLS descriptor pointed to by u_info into the thread's TLS
array.
When set_thread_area() is
passed an entry_number of −1, it
uses a free TLS entry. If set_thread_area() finds a free TLS entry,
the value of u_info−>entry_number
is set upon return to show which entry was changed.
set_thread_area() returns 0
on success, and −1 on failure, with errno set appropriately.
u_info−>entry_number
is out of bounds.
u_info is an
invalid pointer.
A free TLS entry could not be located.
set_thread_area() is
Linux-specific and should not be used in programs that are
intended to be portable.
This page is part of release 2.79 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man-pages/.
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Copyright (C) 2003 Free Software Foundation, Inc. This file is distributed according to the GNU General Public License. See the file COPYING in the top level source directory for details. Author: Kent Yoder |