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/*
* 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
#include <stdint.h>
#include <sys/types.h>
/* 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 2 /* A queued signal, with an application defined */
/* value, shall be delivered when the event of */
/* interest occurs. */
#define SIGEV_THREAD 3 /* 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
{
int sigev_notify; /* Notification type */
int sigev_signo; /* Signal number */
union sigval sigev_value; /* Signal value */
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
#include <signal.h>
#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
#include <signal.h>
#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 */
#ifndef _SIGNAL_H_
/* Some applications take advantage of the fact that <sys/signal.h>
* and <signal.h> are equivalent in glibc. Allow for that here. */
#include <signal.h>
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif
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