44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/*
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* Copyright 2011, Ingo Weinhold, ingo_weinhold@gmx.de.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _SYSTEM_SIGNAL_DEFS_H
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#define _SYSTEM_SIGNAL_DEFS_H
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#include <signal.h>
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#include <unistd.h>
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// The total number of signals a process may have queued at receivers at any
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// time.
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#define MAX_QUEUED_SIGNALS _POSIX_SIGQUEUE_MAX
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// realtime signal number range
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#define SIGNAL_REALTIME_MIN 33
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#define SIGNAL_REALTIME_MAX 40
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// greatest actually supported signal number
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#define MAX_SIGNAL_NUMBER SIGNAL_REALTIME_MAX
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// additional send_signal_etc() flags
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#define SIGNAL_FLAG_QUEUING_REQUIRED (0x10000)
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// force signal queuing, i.e. fail instead of falling back to unqueued
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// signals, when queuing isn't possible
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#define SIGNAL_FLAG_SEND_TO_THREAD (0x20000)
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// interpret the the given ID as a thread_id rather than a team_id (syscall
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// use only)
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// additional sigaction::sa_flags flag
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#define SA_BEOS_COMPATIBLE_HANDLER 0x80000000
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// BeOS compatible signal handler, i.e. the vregs argument is passed
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// per-value, not per-pointer
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#define SIGNAL_TO_MASK(signal) ((sigset_t)1 << ((signal) - 1))
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#define SIGNAL_RANGE_TO_MASK(first, last) \
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((((SIGNAL_TO_MASK(last) - 1) << 1) | 1) & ~(SIGNAL_TO_MASK(first) - 1))
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// Note: The last mask computation looks that way to avoid an overflow for
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// last == 64.
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#endif /* _SYSTEM_SIGNAL_DEFS_H */
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