int kill(int pid, int sig)
{
#ifndef NDEBUG
_syscall_printf("\n Syscall kill(%x, %x)", pid, sig);
#endif
/* errno = EINVAL; */
/* return -1; */
int ret = _syscall_kill(pid, sig);
errno = syscall_errno;
return ret;
}
/*-------------------------------------------
| Name:_kernel_timer
| Description:
| Parameters:
| Return Type:
| Comments:
| See:
---------------------------------------------*/
void _kernel_timer(void){
pid_t _pid;
kill_t kill_dt;
kernel_pthread_t* pthread_ptr;
//
pthread_ptr = g_pthread_lst;
//
while(pthread_ptr) {
if(pthread_ptr
&& (pthread_ptr->pid>0)
&& ((signed long)(pthread_ptr->time_out)>=0L)) {
//
if(pthread_ptr->time_out>0L) {
if( pthread_ptr->time_out-- ) {
pthread_ptr=pthread_ptr->gnext;
continue;
}
}
//try make sytem call
if(__syscall_trylock()==-EBUSY) {
pthread_ptr=pthread_ptr->gnext;
continue;
}
//prepare to kill pthread
pthread_ptr->time_out = -1;
kill_dt.pid = pthread_ptr->pid;
kill_dt.sig = SIGALRM;
kill_dt.atomic = 0; //__clrirq(), __setirq() not used.
//send SIGALRM to pthread
_syscall_kill(pthread_ptr,pthread_ptr->pid,&kill_dt);
__set_active_pthread(pthread_ptr);
//end of sys call
__syscall_unlock();
}
pthread_ptr=pthread_ptr->gnext;
}
for(_pid=1; _pid<=PROCESS_MAX; _pid++) {
if(!process_lst[_pid]) continue;
}
rttmr_restart(&kernel_tmr);
}