gdb/python/py-exitedevent.c

   1 /* Python interface to inferior exit events.
   2
   3    Copyright (C) 2009-2021 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program 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    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "py-event.h"
  22
  23 static gdbpy_ref<>
  24 create_exited_event_object (const LONGEST *exit_code, struct inferior *inf)
  25 {
  26   gdbpy_ref<> exited_event = create_event_object (&exited_event_object_type);
  27
  28   if (exited_event == NULL)
  29     return NULL;
  30
  31   if (exit_code)
  32     {
  33       gdbpy_ref<> exit_code_obj = gdb_py_object_from_longest (*exit_code);
  34
  35       if (exit_code_obj == NULL)
  36         return NULL;
  37       if (evpy_add_attribute (exited_event.get (), "exit_code",
  38                               exit_code_obj.get ()) < 0)
  39         return NULL;
  40     }
  41
  42   gdbpy_ref<inferior_object> inf_obj = inferior_to_inferior_object (inf);
  43   if (inf_obj == NULL || evpy_add_attribute (exited_event.get (),
  44                                              "inferior",
  45                                              (PyObject *) inf_obj.get ()) < 0)
  46     return NULL;
  47
  48   return exited_event;
  49 }
  50
  51 /* Callback that is used when an exit event occurs.  This function
  52    will create a new Python exited event object.  */
  53
  54 int
  55 emit_exited_event (const LONGEST *exit_code, struct inferior *inf)
  56 {
  57   if (evregpy_no_listeners_p (gdb_py_events.exited))
  58     return 0;
  59
  60   gdbpy_ref<> event = create_exited_event_object (exit_code, inf);
  61
  62   if (event != NULL)
  63     return evpy_emit_event (event.get (), gdb_py_events.exited);
  64
  65   return -1;
  66 }