1/* Handle real-time signal allocation. NPTL version.
2 Copyright (C) 2015-2018 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#include <signal.h>
20#include <nptl/pthreadP.h>
21
22/* Up to three special signals might be used privately by libpthread.
23 Figure out how many unique ones are actually used. */
24
25#ifdef SIGCANCEL
26# define SIGCANCEL_CONSUMES 1
27#else
28# define SIGCANCEL_CONSUMES 0
29#endif
30
31#if defined SIGTIMER && (!defined SIGCANCEL || SIGTIMER != SIGCANCEL)
32# define SIGTIMER_CONSUMES 1
33#else
34# define SIGTIMER_CONSUMES 0
35#endif
36
37#if (defined SIGSETXID \
38 && (!defined SIGCANCEL || SIGSETXID != SIGCANCEL) \
39 && (!defined SIGTIMER || SIGSETXID != SIGTIMER))
40# define SIGSETXID_CONSUMES 1
41#else
42# define SIGSETXID_CONSUMES 0
43#endif
44
45/* This tells the generic code (included below) how many signal
46 numbers need to be reserved for libpthread's private uses. */
47#define RESERVED_SIGRT \
48 (SIGCANCEL_CONSUMES + SIGTIMER_CONSUMES + SIGSETXID_CONSUMES)
49
50#include <signal/allocrtsig.c>
51