1 .\" Copyright (c) 2016 The FreeBSD Foundation, Inc.
2 .\" All rights reserved.
4 .\" This documentation was written by
5 .\" Konstantin Belousov <kib@FreeBSD.org> under sponsorship
6 .\" from the FreeBSD Foundation.
8 .\" Redistribution and use in source and binary forms, with or without
9 .\" modification, are permitted provided that the following conditions
11 .\" 1. Redistributions of source code must retain the above copyright
12 .\" notice, this list of conditions and the following disclaimer.
13 .\" 2. Redistributions in binary form must reproduce the above copyright
14 .\" notice, this list of conditions and the following disclaimer in the
15 .\" documentation and/or other materials provided with the distribution.
17 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 .Nd set user-visible thread name
42 .Fn thr_set_name "long id" "const char *name"
46 system call sets the user-visible name for the thread with the identifier
48 in the current process to the NUL-terminated string
50 The name will be silently truncated to fit into a buffer of
53 The thread name can be seen in the output of the
57 commands, in the kernel debuggers and kernel tracing facility outputs,
58 and in userland debuggers and program core files, as notes.
62 returns zero; otherwise, \-1 is returned, and
64 is set to indicate the error.
68 system call may return the following errors:
71 The memory pointed to by the
73 argument is not valid.
75 The thread with the identifier
77 does not exist in the current process.
87 .Xr pthread_set_name_np 3 ,
93 system call is non-standard and is used by the
98 system call first appeared in