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1 | /*****************************************************************************\ |
2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
3 | * Copyright (C) 2007 The Regents of the University of California. | |
4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
715f6251 | 6 | * UCRL-CODE-235197 |
7 | * | |
716154c5 | 8 | * This file is part of the SPL, Solaris Porting Layer. |
3d6af2dd | 9 | * For details, see <http://zfsonlinux.org/>. |
716154c5 BB |
10 | * |
11 | * The SPL is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
715f6251 | 15 | * |
716154c5 | 16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT |
715f6251 | 17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
19 | * for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
716154c5 BB |
22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. |
23 | \*****************************************************************************/ | |
715f6251 | 24 | |
1ec74a11 | 25 | #ifndef _SPL_SIGNAL_H |
26 | #define _SPL_SIGNAL_H | |
27 | ||
55abb092 BB |
28 | #include <linux/sched.h> |
29 | ||
9a054d54 OF |
30 | #ifdef HAVE_SCHED_SIGNAL_HEADER |
31 | #include <linux/sched/signal.h> | |
32 | #endif | |
33 | ||
1ec74a11 | 34 | #define FORREAL 0 /* Usual side-effects */ |
35 | #define JUSTLOOKING 1 /* Don't stop the process */ | |
36 | ||
37 | /* The "why" argument indicates the allowable side-effects of the call: | |
38 | * | |
39 | * FORREAL: Extract the next pending signal from p_sig into p_cursig; | |
40 | * stop the process if a stop has been requested or if a traced signal | |
41 | * is pending. | |
42 | * | |
43 | * JUSTLOOKING: Don't stop the process, just indicate whether or not | |
44 | * a signal might be pending (FORREAL is needed to tell for sure). | |
45 | */ | |
46 | static __inline__ int | |
47 | issig(int why) | |
48 | { | |
937879f1 | 49 | ASSERT(why == FORREAL || why == JUSTLOOKING); |
1ec74a11 | 50 | |
51 | return signal_pending(current); | |
52 | } | |
53 | ||
54 | #endif /* SPL_SIGNAL_H */ |