/* * Copyright (c) 2006-2022, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2017-09-12 Bernard The first version * 2021-07-21 Meco Man move to libc/common */ #ifndef __SYS_SIGNAL_H__ #define __SYS_SIGNAL_H__ #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ #ifdef RT_USING_MUSLLIBC /* this is require for musl */ #ifndef _POSIX_SOURCE #define _POSIX_SOURCE #include /* limit influenced of _POSIX_SOURCE */ #undef _POSIX_SOURCE #else /* ndef _POSIX_SOURCE */ #include #endif #else #include #include /* sigev_notify values NOTE: P1003.1c/D10, p. 34 adds SIGEV_THREAD. */ #define SIGEV_NONE 1 /* No asynchronous notification shall be delivered */ /* when the event of interest occurs. */ #define SIGEV_SIGNAL 0 /* A queued signal, with an application defined */ /* value, shall be delivered when the event of */ /* interest occurs. */ #define SIGEV_THREAD 2 /* A notification function shall be called to */ /* perform notification. */ /* Signal Generation and Delivery, P1003.1b-1993, p. 63 NOTE: P1003.1c/D10, p. 34 adds sigev_notify_function and sigev_notify_attributes to the sigevent structure. */ union sigval { int sival_int; /* Integer signal value */ void *sival_ptr; /* Pointer signal value */ }; struct sigevent { union sigval sigev_value; int sigev_signo; /* Signal number */ int sigev_notify; /* Notification type */ void (*sigev_notify_function)( union sigval ); /* Notification function */ void *sigev_notify_attributes; /* Notification Attributes, really pthread_attr_t */ }; struct siginfo { uint16_t si_signo; uint16_t si_code; union sigval si_value; }; typedef struct siginfo siginfo_t; #define SI_USER 0x01 /* Signal sent by kill(). */ #define SI_QUEUE 0x02 /* Signal sent by sigqueue(). */ #define SI_TIMER 0x03 /* Signal generated by expiration of a timer set by timer_settime(). */ #define SI_ASYNCIO 0x04 /* Signal generated by completion of an asynchronous I/O request. */ #define SI_MESGQ 0x05 /* Signal generated by arrival of a message on an empty message queue. */ typedef void (*_sig_func_ptr)(int); typedef unsigned long sigset_t; struct sigaction { _sig_func_ptr sa_handler; sigset_t sa_mask; int sa_flags; }; /* * Structure used in sigaltstack call. */ typedef struct sigaltstack { void *ss_sp; /* Stack base or pointer. */ int ss_flags; /* Flags. */ size_t ss_size; /* Stack size. */ } stack_t; #define SIG_SETMASK 0 /* set mask with sigprocmask() */ #define SIG_BLOCK 1 /* set of signals to block */ #define SIG_UNBLOCK 2 /* set of signals to, well, unblock */ #define sigaddset(what,sig) (*(what) |= (1<<(sig)), 0) #define sigdelset(what,sig) (*(what) &= ~(1<<(sig)), 0) #define sigemptyset(what) (*(what) = 0, 0) #define sigfillset(what) (*(what) = ~(0), 0) #define sigismember(what,sig) (((*(what)) & (1<<(sig))) != 0) int sigprocmask (int how, const sigset_t *set, sigset_t *oset); int sigpending (sigset_t *set); int sigsuspend (const sigset_t *set); #include "time.h" int sigtimedwait(const sigset_t *set, siginfo_t *info, const struct timespec *timeout); int sigwait(const sigset_t *set, int *sig); int sigwaitinfo(const sigset_t *set, siginfo_t *info); int raise(int sig); int sigqueue(pid_t pid, int signo, const union sigval value); int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact); #ifdef __ARMCC_VERSION #define SIGHUP 1 /* #define SIGINT 2 */ #define SIGQUIT 3 /* #define SIGILL 4 */ #define SIGTRAP 5 /* #define SIGABRT 6 */ #define SIGEMT 7 /* #define SIGFPE 8 */ #define SIGKILL 9 #define SIGBUS 10 /* #define SIGSEGV 11 */ #define SIGSYS 12 #define SIGPIPE 13 #define SIGALRM 14 /* #define SIGTERM 15 */ #define SIGURG 16 #define SIGSTOP 17 #define SIGTSTP 18 #define SIGCONT 19 #define SIGCHLD 20 #define SIGTTIN 21 #define SIGTTOU 22 #define SIGPOLL 23 #define SIGWINCH 24 #define SIGXCPU 24 /* exceeded CPU time limit */ #define SIGXFSZ 25 /* exceeded file size limit */ #define SIGVTALRM 26 /* virtual time alarm */ /* #define SIGUSR1 25 */ /* #define SIGUSR2 26 */ #define SIGRTMIN 27 #define SIGRTMAX 31 #define NSIG 32 #elif defined(__IAR_SYSTEMS_ICC__) #define SIGHUP 1 #define SIGINT 2 #define SIGQUIT 3 #define SIGILL 4 #define SIGTRAP 5 /* #define SIGABRT 6 */ #define SIGEMT 7 #define SIGFPE 8 #define SIGKILL 9 #define SIGBUS 10 #define SIGSEGV 11 #define SIGSYS 12 #define SIGPIPE 13 #define SIGALRM 14 #define SIGTERM 15 #define SIGURG 16 #define SIGSTOP 17 #define SIGTSTP 18 #define SIGCONT 19 #define SIGCHLD 20 #define SIGTTIN 21 #define SIGTTOU 22 #define SIGPOLL 23 #define SIGWINCH 24 #define SIGXCPU 24 /* exceeded CPU time limit */ #define SIGXFSZ 25 /* exceeded file size limit */ #define SIGVTALRM 26 /* virtual time alarm */ #define SIGUSR1 25 #define SIGUSR2 26 #define SIGRTMIN 27 #define SIGRTMAX 31 #define NSIG 32 #elif defined(__GNUC__) #define SIGHUP 1 /* hangup */ #define SIGINT 2 /* interrupt */ #define SIGQUIT 3 /* quit */ #define SIGILL 4 /* illegal instruction (not reset when caught) */ #define SIGTRAP 5 /* trace trap (not reset when caught) */ #define SIGIOT 6 /* IOT instruction */ #define SIGABRT 6 /* used by abort, replace SIGIOT in the future */ #define SIGEMT 7 /* EMT instruction */ #define SIGFPE 8 /* floating point exception */ #define SIGKILL 9 /* kill (cannot be caught or ignored) */ #define SIGBUS 10 /* bus error */ #define SIGSEGV 11 /* segmentation violation */ #define SIGSYS 12 /* bad argument to system call */ #define SIGPIPE 13 /* write on a pipe with no one to read it */ #define SIGALRM 14 /* alarm clock */ #define SIGTERM 15 /* software termination signal from kill */ #define SIGURG 16 /* urgent condition on IO channel */ #define SIGSTOP 17 /* sendable stop signal not from tty */ #define SIGTSTP 18 /* stop signal from tty */ #define SIGCONT 19 /* continue a stopped process */ #define SIGCHLD 20 /* to parent on child stop or exit */ #define SIGCLD 20 /* System V name for SIGCHLD */ #define SIGTTIN 21 /* to readers pgrp upon background tty read */ #define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */ #define SIGIO 23 /* input/output possible signal */ #define SIGPOLL SIGIO /* System V name for SIGIO */ #define SIGXCPU 24 /* exceeded CPU time limit */ #define SIGXFSZ 25 /* exceeded file size limit */ #define SIGVTALRM 26 /* virtual time alarm */ #define SIGPROF 27 /* profiling time alarm */ #define SIGWINCH 28 /* window changed */ #define SIGLOST 29 /* resource lost (eg, record-lock lost) */ #define SIGUSR1 30 /* user defined signal 1 */ #define SIGUSR2 31 /* user defined signal 2 */ #define NSIG 32 /* signal 0 implied */ #endif /* __ARMCC_VERSION */ /* Some applications take advantage of the fact that * and are equivalent in glibc. Allow for that here. */ #include #ifndef SIG_ERR #define SIG_ERR ((void (*)(int))-1) #endif #ifndef SIG_DFL #define SIG_DFL ((void (*)(int)) 0) #endif #ifndef SIG_IGN #define SIG_IGN ((void (*)(int)) 1) #endif #endif /* RT_USING_MUSLLIBC */ #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* __SYS_SIGNAL_H__ */