akaros/tools/compilers/gcc-glibc/glibc-2.19-akaros/sysdeps/akaros/kill.c
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   1/* Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
   2   This file is part of the GNU C Library.
   3
   4   The GNU C Library is free software; you can redistribute it and/or
   5   modify it under the terms of the GNU Lesser General Public
   6   License as published by the Free Software Foundation; either
   7   version 2.1 of the License, or (at your option) any later version.
   8
   9   The GNU C Library is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12   Lesser General Public License for more details.
  13
  14   You should have received a copy of the GNU Lesser General Public
  15   License along with the GNU C Library; if not, write to the Free
  16   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17   02111-1307 USA.  */
  18
  19#include <errno.h>
  20#include <signal.h>
  21#include <ros/syscall.h>
  22#include <ros/event.h>
  23
  24/* Send signal SIG to process number PID.  If PID is zero,
  25   send SIG to all processes in the current process's process group.
  26   If PID is < -1, send SIG to all processes in process group - PID.
  27   If SIG is SIGKILL, kill the process. */
  28int __kill (int pid, int sig)
  29{
  30        struct event_msg local_msg = {0};
  31
  32        if (pid <= 0) {
  33                errno = ENOSYS;
  34                return -1;
  35        }
  36        if (sig == SIGKILL)
  37                return ros_syscall(SYS_proc_destroy, pid, 0, 0, 0, 0, 0);
  38        local_msg.ev_type = EV_POSIX_SIGNAL;
  39        local_msg.ev_arg1 = sig;
  40        return ros_syscall(SYS_notify, pid, EV_POSIX_SIGNAL, &local_msg, 0, 0,
  41                           0);
  42}
  43weak_alias (__kill, kill)
  44