123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _SIGNAL_H_
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#define _SIGNAL_H_
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#include <errno.h>
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#include <sys/cdefs.h>
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#include <limits.h> /* For LONG_BIT */
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#include <string.h> /* For memset() */
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#include <sys/types.h>
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#if defined(__LP64__) || defined(__mips__)
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/* For 64-bit (and mips), the kernel's struct sigaction doesn't match the POSIX one,
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* so we need to expose our own and translate behind the scenes. */
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# define sigaction __kernel_sigaction
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# include <linux/signal.h>
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# undef sigaction
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#else
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/* For 32-bit, we're stuck with the definitions we already shipped,
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* even though they contain a sigset_t that's too small. */
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# include <linux/signal.h>
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#endif
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__BEGIN_DECLS
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typedef int sig_atomic_t;
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/* TODO: 64-bit: we should probably #undef the uapi NSIG and add a unit test that NSIG == _NSIG && NSIG >= 64. */
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#ifndef _NSIG
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# define _NSIG 64
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#endif
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#ifndef NSIG
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# define NSIG _NSIG
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#endif
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extern const char* const sys_siglist[];
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extern const char* const sys_signame[];
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typedef __sighandler_t sig_t; /* BSD compatibility. */
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typedef __sighandler_t sighandler_t; /* glibc compatibility. */
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#if defined(__LP64__)
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struct sigaction {
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unsigned int sa_flags;
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union {
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sighandler_t sa_handler;
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void (*sa_sigaction)(int, struct siginfo*, void*);
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};
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sigset_t sa_mask;
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void (*sa_restorer)(void);
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};
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#elif defined(__mips__)
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struct sigaction {
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unsigned int sa_flags;
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union {
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sighandler_t sa_handler;
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void (*sa_sigaction) (int, struct siginfo*, void*);
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};
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sigset_t sa_mask;
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};
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#endif
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extern int sigaction(int, const struct sigaction*, struct sigaction*);
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extern sighandler_t signal(int, sighandler_t);
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extern sighandler_t bsd_signal(int, sighandler_t);
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extern sighandler_t sysv_signal(int, sighandler_t);
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extern int siginterrupt(int, int);
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extern int sigaddset(sigset_t*, int);
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extern int sigdelset(sigset_t*, int);
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extern int sigemptyset(sigset_t*);
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extern int sigfillset(sigset_t*);
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extern int sigismember(const sigset_t*, int);
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extern int sigpending(sigset_t*) __nonnull((1));
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extern int sigprocmask(int, const sigset_t*, sigset_t*);
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extern int sigsuspend(const sigset_t*) __nonnull((1));
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extern int sigwait(const sigset_t*, int*) __nonnull((1, 2));
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extern int raise(int);
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extern int kill(pid_t, int);
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extern int killpg(int, int);
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extern int sigaltstack(const stack_t*, stack_t*);
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extern void psiginfo(const siginfo_t*, const char*);
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extern void psignal(int, const char*);
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__END_DECLS
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#endif /* _SIGNAL_H_ */
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