1/*
2 * Copyright 2011, Ingo Weinhold, ingo_weinhold@gmx.de.
3 * Distributed under the terms of the MIT License.
4 */
5#ifndef _SYSTEM_SIGNAL_DEFS_H
6#define _SYSTEM_SIGNAL_DEFS_H
7
8
9#include <signal.h>
10#include <unistd.h>
11
12
13// The total number of signals a process may have queued at receivers at any
14// time.
15#define MAX_QUEUED_SIGNALS			_POSIX_SIGQUEUE_MAX
16
17// realtime signal number range
18#define SIGNAL_REALTIME_MIN			33
19#define SIGNAL_REALTIME_MAX			40
20
21// greatest actually supported signal number
22#define MAX_SIGNAL_NUMBER			SIGNAL_REALTIME_MAX
23
24// additional send_signal_etc() flags
25#define SIGNAL_FLAG_QUEUING_REQUIRED		(0x10000)
26	// force signal queuing, i.e. fail instead of falling back to unqueued
27	// signals, when queuing isn't possible
28#define SIGNAL_FLAG_SEND_TO_THREAD			(0x20000)
29	// interpret the the given ID as a thread_id rather than a team_id (syscall
30	// use only)
31
32// additional sigaction::sa_flags flag
33#define SA_BEOS_COMPATIBLE_HANDLER		0x80000000
34	// BeOS compatible signal handler, i.e. the vregs argument is passed
35	// per-value, not per-pointer
36
37#define SIGNAL_TO_MASK(signal)	((sigset_t)1 << ((signal) - 1))
38#define SIGNAL_RANGE_TO_MASK(first, last)	\
39	((((SIGNAL_TO_MASK(last) - 1) << 1) | 1) & ~(SIGNAL_TO_MASK(first) - 1))
40	// Note: The last mask computation looks that way to avoid an overflow for
41	// last == 64.
42
43#endif	/* _SYSTEM_SIGNAL_DEFS_H */
44