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 | |