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/* libc/sys/linux/signal.c - Signal handling functions */

/* Written 2000 by Werner Almesberger */

#include <signal.h>

#include <unistd.h>

#include <sys/types.h>

#include <machine/syscall.h>

/* avoid name space pollution */

#define __NR___sgetmask __NR_sgetmask

#define __NR___ssetmask __NR_ssetmask

#define __NR___rt_sigtimedwait __NR_rt_sigtimedwait

#define __NR___rt_sigpending __NR_rt_sigpending

#define __NR___rt_sigprocmask __NR_rt_sigprocmask

#define __NR___rt_sigsuspend __NR_rt_sigsuspend

_syscall2(int,kill,pid_t,pid,int,sig)

_syscall2(__sighandler_t,signal,int,signum,__sighandler_t,handler)

_syscall0(int,pause)

_syscall1(unsigned int,alarm,unsigned int,seconds)

static _syscall2(int,__rt_sigpending,sigset_t *,set,size_t,size)

static _syscall4(int,__rt_sigprocmask,int,how,const sigset_t *,set,sigset_t *,oldset,size_t,size)

static _syscall2(int,__rt_sigsuspend,const sigset_t *,mask,size_t,size)

static _syscall4(int,__rt_sigtimedwait,const sigset_t *,set,siginfo_t *,info,struct timespec *,timeout,size_t,size)

int __sigsuspend (const sigset_t *mask)

{

    return __rt_sigsuspend(mask, NSIG/8);

}

weak_alias(__sigsuspend,sigsuspend)

int sigmask(int signum) /* BSD */

{

    return 1 << signum;

}

int __libc_raise(int sig)

{

    return kill(getpid(),sig);

}

weak_alias(__libc_raise,raise)

int __sigpending(sigset_t *set)

{

  return __rt_sigpending(set, NSIG/8);

}

weak_alias(__sigpending,sigpending)

int __sigprocmask (int how,const sigset_t *set,sigset_t *oldset)

{

  return __rt_sigprocmask(how, set, oldset, NSIG/8);

}

weak_alias(__sigprocmask,sigprocmask)

int sigtimedwait(const sigset_t *set, siginfo_t *info,

                 struct timespec *timeout)

{

  return __rt_sigtimedwait(set, info, timeout, NSIG/8);

}

int sigwaitinfo(const sigset_t *set, siginfo_t *info)

{

  return __rt_sigtimedwait(set, info, NULL, NSIG/8);

}

#if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 4

static _syscall1(int,__ssetmask,int,newmask)

static _syscall0(int,__sgetmask)

int sigblock(int mask) /* BSD */

{

    return __ssetmask(mask | __sgetmask());

}

int sigsetmask(int newmask) /* BSD */

{

    return __ssetmask(newmask);

}

#endif

const char *const sys_siglist[] = {

#include "siglist.inc"

};