1/* Special use of signals in NPTL internals. Linux version.
2 Copyright (C) 2014-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19/* The signal used for asynchronous cancelation. */
20#define SIGCANCEL __SIGRTMIN
21
22
23/* Signal needed for the kernel-supported POSIX timer implementation.
24 We can reuse the cancellation signal since we can distinguish
25 cancellation from timer expirations. */
26#define SIGTIMER SIGCANCEL
27
28
29/* Signal used to implement the setuid et.al. functions. */
30#define SIGSETXID (__SIGRTMIN + 1)
31
32/* Used to communicate with signal handler. */
33extern struct xid_command *__xidcmd attribute_hidden;
34