libgfortran/intrinsics/kill.c

   1 /* Implementation of the KILL g77 intrinsic.
   2    Copyright (C) 2005, 2007 Free Software Foundation, Inc.
   3    Contributed by François-Xavier Coudert <coudert@clipper.ens.fr>
   4
   5 This file is part of the GNU Fortran 95 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 2 of the License, or (at your option) any later version.
  11
  12 In addition to the permissions in the GNU General Public License, the
  13 Free Software Foundation gives you unlimited permission to link the
  14 compiled version of this file into combinations with other programs,
  15 and to distribute those combinations without any restriction coming
  16 from the use of this file.  (The General Public License restrictions
  17 do apply in other respects; for example, they cover modification of
  18 the file, and distribution when not linked into a combine
  19 executable.)
  20
  21 Libgfortran is distributed in the hope that it will be useful,
  22 but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 GNU General Public License for more details.
  25
  26 You should have received a copy of the GNU General Public
  27 License along with libgfortran; see the file COPYING.  If not,
  28 write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  29 Boston, MA 02110-1301, USA.  */
  30
  31 #include "libgfortran.h"
  32 #include <errno.h>
  33
  34 #ifdef HAVE_SIGNAL_H
  35 #include <signal.h>
  36 #endif
  37
  38 /* SUBROUTINE KILL(PID, SIGNAL, STATUS)
  39    INTEGER, INTENT(IN) :: PID, SIGNAL
  40    INTEGER(KIND=1), INTENT(OUT), OPTIONAL :: STATUS
  41
  42    INTEGER(KIND=1) FUNCTION KILL(PID, SIGNAL)
  43    INTEGER, INTENT(IN) :: PID, SIGNAL */
  44
  45 #ifdef HAVE_KILL
  46 extern void kill_i4_sub (GFC_INTEGER_4 *, GFC_INTEGER_4 *, GFC_INTEGER_4 *);
  47 iexport_proto(kill_i4_sub);
  48
  49 void
  50 kill_i4_sub (GFC_INTEGER_4 *pid, GFC_INTEGER_4 *signal,
  51              GFC_INTEGER_4 *status)
  52 {
  53   int val;
  54
  55   val = kill (*pid, *signal);
  56
  57   if (status != NULL)
  58     *status = (val == 0) ? 0 : errno;
  59 }
  60 iexport(kill_i4_sub);
  61
  62 extern void kill_i8_sub (GFC_INTEGER_8 *, GFC_INTEGER_8 *, GFC_INTEGER_8 *);
  63 iexport_proto(kill_i8_sub);
  64
  65 void
  66 kill_i8_sub (GFC_INTEGER_8 *pid, GFC_INTEGER_8 *signal,
  67              GFC_INTEGER_8 *status)
  68 {
  69   int val;
  70
  71   val = kill (*pid, *signal);
  72
  73   if (status != NULL)
  74     *status = (val == 0) ? 0 : errno;
  75 }
  76 iexport(kill_i8_sub);
  77
  78 extern GFC_INTEGER_4 kill_i4 (GFC_INTEGER_4 *, GFC_INTEGER_4 *);
  79 export_proto(kill_i4);
  80
  81 GFC_INTEGER_4
  82 kill_i4 (GFC_INTEGER_4 *pid, GFC_INTEGER_4 *signal)
  83 {
  84   GFC_INTEGER_4 val;
  85   kill_i4_sub (pid, signal, &val);
  86   return val;
  87 }
  88
  89 extern GFC_INTEGER_8 kill_i8 (GFC_INTEGER_8 *, GFC_INTEGER_8 *);
  90 export_proto(kill_i8);
  91
  92 GFC_INTEGER_8
  93 kill_i8 (GFC_INTEGER_8 *pid, GFC_INTEGER_8 *signal)
  94 {
  95   GFC_INTEGER_8 val;
  96   kill_i8_sub (pid, signal, &val);
  97   return val;
  98 }
  99 #endif