#ifndef _SIGNAL_H
#define _SIGNAL_H 1
// https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html
#include <sys/cdefs.h>
__BEGIN_DECLS
#include <time.h>
#define SIG_DFL ((void (*)(int))0)
#define SIG_ERR ((void (*)(int))1)
#define SIG_HOLD ((void (*)(int))2)
#define SIG_IGN ((void (*)(int))3)
#define __need_pthread_t
#define __need_size_t
#define __need_uid_t
#define __need_pid_t
#define __need_pthread_attr_t
#include <sys/types.h>
typedef int sig_atomic_t;
typedef unsigned long long sigset_t;
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. */
pthread_attr_t* sigev_notify_attributes; /* Notification attributes. */
};
#define SIGEV_NONE 1
#define SIGEV_SIGNAL 2
#define SIGEV_THREAD 3
#define SIGABRT 1
#define SIGALRM 2
#define SIGBUS 3
#define BUS_ADRALN 1
#define BUS_ADRERR 2
#define BUS_OBJERR 3
#define SIGCHLD 4
#define CLD_EXITED 1
#define CLD_KILLED 2
#define CLD_DUMPED 3
#define CLD_TRAPPED 4
#define CLD_STOPPED 5
#define CLD_CONTINUED 6
#define SIGCONT 5
#define SIGFPE 6
#define FPE_INTDIV 1
#define FPE_INTOVF 2
#define FPE_FLTDIV 3
#define FPE_FLTOVF 4
#define FPE_FLTUND 5
#define FPE_FLTRES 6
#define FPE_FLTINV 7
#define FPE_FLTSUB 8
#define SIGHUP 7
#define SIGILL 8
#define ILL_ILLOPC 1
#define ILL_ILLOPN 2
#define ILL_ILLADR 3
#define ILL_ILLTRP 4
#define ILL_PRVOPC 5
#define ILL_PRVREG 6
#define ILL_COPROC 7
#define ILL_BADSTK 8
#define SIGINT 9
#define SIGKILL 10
#define SIGPIPE 11
#define SIGQUIT 12
#define SIGSEGV 13
#define SEGV_MAPERR 1
#define SEGV_ACCERR 2
#define SIGSTOP 14
#define SIGTERM 15
#define SIGTSTP 16
#define SIGTTIN 17
#define SIGTTOU 18
#define SIGUSR1 19
#define SIGUSR2 20
#define SIGPOLL 21
#define POLL_IN 1
#define POLL_OUT 2
#define POLL_MSG 3
#define POLL_ERR 4
#define POLL_PRI 5
#define POLL_HUP 6
#define SIGPROF 22
#define SIGSYS 23
#define SIGTRAP 24
#define SIGURG 25
#define SIGVTALRM 26
#define SIGXCPU 27
#define SIGXFSZ 28
#define SIGWINCH 29
#define SIGRTMIN 30
#define SIGRTMAX (SIGRTMIN+32)
#define SI_USER 10
#define SI_QUEUE 11
#define SI_TIMER 12
#define SI_ASYNCIO 13
#define SI_MESGQ 14
#define _SIGMIN SIGABRT
#define _SIGMAX SIGRTMAX
#define SIG_BLOCK 1
#define SIG_UNBLOCK 2
#define SIG_SETMASK 3
#define SA_NOCLDSTOP 0x001
#define SA_ONSTACK 0x002
#define SA_RESETHAND 0x004
#define SA_RESTART 0x008
#define SA_SIGINFO 0x010
#define SA_NOCLDWAIT 0x020
#define SA_NODEFER 0x040
#define SS_ONSTACK 0x080
#define SS_DISABLE 0x100
#define MINSIGSTKSZ 0x200
#define SIGSTKSZ 0x400
typedef struct
{
void** ss_sp; /* Stack base or pointer. */
size_t ss_size; /* Stack size. */
int ss_flags; /* Flags. */
} stack_t;
enum
{
#if defined(__x86_64__)
REG_RAX,
REG_RBX,
REG_RCX,
REG_RDX,
REG_RDI,
REG_RSI,
REG_RSP,
REG_RBP,
REG_RIP,
REG_R8,
REG_R9,
REG_R10,
REG_R11,
REG_R12,
REG_R13,
REG_R14,
REG_R15,
#elif defined(__i686__)
REG_EAX,
REG_EBX,
REG_ECX,
REG_EDX,
REG_EDI,
REG_ESI,
REG_ESP,
REG_EBP,
REG_EIP,
#else
#error
#endif
__REG_COUNT
};
typedef struct
{
long gregs[__REG_COUNT];
} mcontext_t;
typedef struct __ucontext_t
{
struct __ucontext_t* uc_link; /* Pointer to the context that is resumed when this context returns. */
sigset_t uc_sigmask; /* The set of signals that are blocked when this context is active. */
stack_t uc_stack; /* The stack used by this context. */
mcontext_t uc_mcontext; /* A machine-specific representation of the saved context. */
} ucontext_t;
typedef struct
{
int si_signo; /* Signal number. */
int si_code; /* Signal code. */
int si_errno; /* If non-zero, an errno value associated with this signal, as described in <errno.h>. */
pid_t si_pid; /* Sending process ID. */
uid_t si_uid; /* Real user ID of sending process. */
void* si_addr; /* Address of faulting instruction. */
int si_status; /* Exit value or signal. */
long si_band; /* Band event for SIGPOLL. */
union sigval si_value; /* Signal value. */
} siginfo_t;
struct sigaction
{
void (*sa_handler)(int); /* Pointer to a signal-catching function or one of the SIG_IGN or SIG_DFL. */
sigset_t sa_mask; /* Set of signals to be blocked during execution of the signal handling function. */
int sa_flags; /* Special flags. */
void (*sa_sigaction)(int, siginfo_t*, void*); /* Pointer to a signal-catching function. */
};
int kill(pid_t pid, int sig);
int killpg(pid_t pgpr, int sig);
void psiginfo(const siginfo_t* pinfo, const char* message);
void psignal(int signum, const char* message);
int pthread_kill(pthread_t thread, int sig);
int pthread_sigmask(int how, const sigset_t* __restrict set, sigset_t* __restrict oset);
int raise(int sig);
int sigaction(int sig, const struct sigaction* __restrict act, struct sigaction* __restrict oact);
int sigaddset(sigset_t* set, int signo);
int sigaltstack(const stack_t* __restrict ss, stack_t* __restrict oss);
int sigdelset(sigset_t* set, int signo);
int sigemptyset(sigset_t* set);
int sigfillset(sigset_t* set);
int sighold(int sig);
int sigignore(int sig);
int siginterrupt(int sig, int flag);
int sigismember(const sigset_t* set, int signo);
void (*signal(int sig, void (*func)(int)))(int);
int sigpause(int sig);
int sigpending(sigset_t* set);
int sigprocmask(int how, const sigset_t* __restrict set, sigset_t* __restrict oset);
int sigqueue(pid_t pid, int signo, union sigval value);
int sigrelse(int sig);
void (*sigset(int sig, void (*disp)(int)))(int);
int sigsuspend(const sigset_t* sigmask);
int sigtimedwait(const sigset_t* __restrict set, siginfo_t* __restrict info, const struct timespec* __restrict timeout);
int sigwait(const sigset_t* __restrict set, int* __restrict sig);
int sigwaitinfo(const sigset_t* __restrict set, siginfo_t* __restrict info);
__END_DECLS
#endif