1b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare/* 2b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * Copyright (C) 2008 The Android Open Source Project 3b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * All rights reserved. 4b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * 5b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * Redistribution and use in source and binary forms, with or without 6b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * modification, are permitted provided that the following conditions 7b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * are met: 8b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * * Redistributions of source code must retain the above copyright 9b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * notice, this list of conditions and the following disclaimer. 10b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * * Redistributions in binary form must reproduce the above copyright 11b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * notice, this list of conditions and the following disclaimer in 12b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * the documentation and/or other materials provided with the 13b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * distribution. 14b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * 15b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare * SUCH DAMAGE. 27b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare */ 28b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#ifndef _SIGNAL_H_ 29b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#define _SIGNAL_H_ 30b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 31b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#include <sys/cdefs.h> 32b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#include <limits.h> /* For LONG_BIT */ 33b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#include <string.h> /* For memset() */ 34b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#include <sys/types.h> 35b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#include <asm/signal.h> 36b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 37b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#define __ARCH_SI_UID_T __kernel_uid32_t 38b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#include <asm/siginfo.h> 39b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#undef __ARCH_SI_UID_T 40b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 41b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare__BEGIN_DECLS 42b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 43b17fe090db1a34bac2c56bef93925fc893300e70Bruce Bearetypedef int sig_atomic_t; 44b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 45b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare/* crepy NIG / _NSIG handling, just to be safe */ 46b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#ifndef NSIG 47b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare# define NSIG _NSIG 48b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#endif 49b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#ifndef _NSIG 50b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare# define _NSIG NSIG 51b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#endif 52b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 53b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern const char * const sys_siglist[]; 54b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 55b17fe090db1a34bac2c56bef93925fc893300e70Bruce Bearestatic __inline__ int sigismember(sigset_t *set, int signum) 56b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare{ 57b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare unsigned long *local_set = (unsigned long *)set; 58b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare signum--; 59b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare return (int)((local_set[signum/LONG_BIT] >> (signum%LONG_BIT)) & 1); 60b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare} 61b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 62b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 63b17fe090db1a34bac2c56bef93925fc893300e70Bruce Bearestatic __inline__ int sigaddset(sigset_t *set, int signum) 64b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare{ 65b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare unsigned long *local_set = (unsigned long *)set; 66b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare signum--; 67b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare local_set[signum/LONG_BIT] |= 1UL << (signum%LONG_BIT); 68b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare return 0; 69b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare} 70b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 71b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 72b17fe090db1a34bac2c56bef93925fc893300e70Bruce Bearestatic __inline__ int sigdelset(sigset_t *set, int signum) 73b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare{ 74b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare unsigned long *local_set = (unsigned long *)set; 75b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare signum--; 76b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare local_set[signum/LONG_BIT] &= ~(1UL << (signum%LONG_BIT)); 77b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare return 0; 78b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare} 79b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 80b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 81b17fe090db1a34bac2c56bef93925fc893300e70Bruce Bearestatic __inline__ int sigemptyset(sigset_t *set) 82b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare{ 83b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare memset(set, 0, sizeof *set); 84b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare return 0; 85b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare} 86b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 87b17fe090db1a34bac2c56bef93925fc893300e70Bruce Bearestatic __inline__ int sigfillset(sigset_t *set) 88b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare{ 89b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare memset(set, ~0, sizeof *set); 90b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare return 0; 91b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare} 92b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 93b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 94b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare/* compatibility types */ 95b17fe090db1a34bac2c56bef93925fc893300e70Bruce Bearetypedef void (*sig_t)(int); 96b17fe090db1a34bac2c56bef93925fc893300e70Bruce Bearetypedef sig_t sighandler_t; 97b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 98b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare/* differentiater between sysv and bsd behaviour 8*/ 99b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern __sighandler_t sysv_signal(int, __sighandler_t); 100b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern __sighandler_t bsd_signal(int, __sighandler_t); 101b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 102b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare/* the default is bsd */ 103b17fe090db1a34bac2c56bef93925fc893300e70Bruce Bearestatic __inline__ __sighandler_t signal(int s, __sighandler_t f) 104b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare{ 105b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare return bsd_signal(s,f); 106b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare} 107b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 108b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare/* the syscall itself */ 109b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern __sighandler_t __signal(int, __sighandler_t, int); 110b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 111b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern int sigprocmask(int, const sigset_t *, sigset_t *); 112b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern int sigaction(int, const struct sigaction *, struct sigaction *); 113b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 114b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern int sigpending(sigset_t *); 115b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern int sigsuspend(const sigset_t *); 116b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern int sigwait(const sigset_t *set, int *sig); 117b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern int siginterrupt(int sig, int flag); 118b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 119b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern int raise(int); 120b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beareextern int kill(pid_t, int); 121b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 122b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 123b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare__END_DECLS 124b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare 125b17fe090db1a34bac2c56bef93925fc893300e70Bruce Beare#endif /* _SIGNAL_H_ */ 126