libgfortran/intrinsics/kill.c

   1 /* Implementation of the KILL g77 intrinsic.
   2    Copyright (C) 2005-2018 Free Software Foundation, Inc.
   3    Contributed by François-Xavier Coudert <coudert@clipper.ens.fr>
   4
   5 This file is part of the GNU Fortran runtime library (libgfortran).
   6
   7 Libgfortran is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU General Public
   9 License as published by the Free Software Foundation; either
  10 version 3 of the License, or (at your option) any later version.
  11
  12 Libgfortran is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 Under Section 7 of GPL version 3, you are granted additional
  18 permissions described in the GCC Runtime Library Exception, version
  19 3.1, as published by the Free Software Foundation.
  20
  21 You should have received a copy of the GNU General Public License and
  22 a copy of the GCC Runtime Library Exception along with this program;
  23 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26 #include "libgfortran.h"
  27 #include <errno.h>
  28 #include <signal.h>
  29
  30
  31 /* SUBROUTINE KILL(PID, SIGNAL, STATUS)
  32    INTEGER, INTENT(IN) :: PID, SIGNAL
  33    INTEGER(KIND=1), INTENT(OUT), OPTIONAL :: STATUS
  34
  35    INTEGER(KIND=1) FUNCTION KILL(PID, SIGNAL)
  36    INTEGER, INTENT(IN) :: PID, SIGNAL */
  37
  38 #ifdef HAVE_KILL
  39 extern void kill_i4_sub (GFC_INTEGER_4 *, GFC_INTEGER_4 *, GFC_INTEGER_4 *);
  40 iexport_proto(kill_i4_sub);
  41
  42 void
  43 kill_i4_sub (GFC_INTEGER_4 *pid, GFC_INTEGER_4 *signal,
  44              GFC_INTEGER_4 *status)
  45 {
  46   int val;
  47
  48   val = kill (*pid, *signal);
  49
  50   if (status != NULL)
  51     *status = (val == 0) ? 0 : errno;
  52 }
  53 iexport(kill_i4_sub);
  54
  55 extern void kill_i8_sub (GFC_INTEGER_8 *, GFC_INTEGER_8 *, GFC_INTEGER_8 *);
  56 iexport_proto(kill_i8_sub);
  57
  58 void
  59 kill_i8_sub (GFC_INTEGER_8 *pid, GFC_INTEGER_8 *signal,
  60              GFC_INTEGER_8 *status)
  61 {
  62   int val;
  63
  64   val = kill (*pid, *signal);
  65
  66   if (status != NULL)
  67     *status = (val == 0) ? 0 : errno;
  68 }
  69 iexport(kill_i8_sub);
  70
  71 extern GFC_INTEGER_4 kill_i4 (GFC_INTEGER_4 *, GFC_INTEGER_4 *);
  72 export_proto(kill_i4);
  73
  74 GFC_INTEGER_4
  75 kill_i4 (GFC_INTEGER_4 *pid, GFC_INTEGER_4 *signal)
  76 {
  77   GFC_INTEGER_4 val;
  78   kill_i4_sub (pid, signal, &val);
  79   return val;
  80 }
  81
  82 extern GFC_INTEGER_8 kill_i8 (GFC_INTEGER_8 *, GFC_INTEGER_8 *);
  83 export_proto(kill_i8);
  84
  85 GFC_INTEGER_8
  86 kill_i8 (GFC_INTEGER_8 *pid, GFC_INTEGER_8 *signal)
  87 {
  88   GFC_INTEGER_8 val;
  89   kill_i8_sub (pid, signal, &val);
  90   return val;
  91 }
  92 #endif