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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 <sys/syscall.h>
 
 
#define __NR___sgetmask __NR_sgetmask /* avoid name space pollution */
#define __NR___ssetmask __NR_ssetmask /* avoid name space pollution */
 
_syscall2(int,kill,pid_t,pid,int,sig)
_syscall2(__sighandler_t,signal,int,signum,__sighandler_t,handler)
_syscall3(int,sigaction,int,signum,const struct sigaction *,act,
  struct sigaction *,oldact)
_syscall1(int,sigsuspend,const sigset_t *,mask)
_syscall1(int,sigpending,sigset_t *,set)
_syscall0(int,pause)
_syscall1(unsigned int,alarm,unsigned int,seconds)
_syscall3(int,sigprocmask,int,how,const sigset_t *,set,sigset_t *,oldset)
 
static _syscall0(int,__sgetmask)
static _syscall1(int,__ssetmask,int,newmask)
 
 
int sigsetmask(int newmask) /* BSD */
{
    return __ssetmask(newmask);
}
 
 
int sigmask(int signum) /* BSD */
{
    return 1 << signum;
}
 
 
int sigblock(int mask) /* BSD */
{
    return __ssetmask(mask | __sgetmask());
}
 
 
int raise(int sig)
{
    return kill(getpid(),sig);
}
 
 
const char *const sys_siglist[] = {
#include "siglist.inc"
};