gdb/continuations.h

   1 /* Continuations for GDB, the GNU debugger.
   2
   3    Copyright (C) 1999-2021 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 #ifndef CONTINUATIONS_H
  21 #define CONTINUATIONS_H
  22
  23 struct inferior;
  24
  25 /* To continue the execution commands when running gdb asynchronously.
  26    A continuation structure contains a pointer to a function to be called
  27    to finish the command, once the target has stopped.  Such mechanism is
  28    used by the attach command and the remote target when a new inferior
  29    is detected.  */
  30
  31 /* Prototype of the continuation callback functions.  ARG is the
  32    continuation argument registered in the corresponding
  33    add_*_continuation call.  */
  34 typedef void (continuation_ftype) (void *arg);
  35
  36 /* Prototype of the function responsible for releasing the argument
  37    passed to the continuation callback functions, either when the
  38    continuation is called, or discarded.  */
  39 typedef void (continuation_free_arg_ftype) (void *);
  40
  41 /* Inferior specific (any thread) continuations.  */
  42
  43 extern void add_inferior_continuation (continuation_ftype *,
  44                                        void *,
  45                                        continuation_free_arg_ftype *);
  46 extern void do_all_inferior_continuations ();
  47 extern void discard_all_inferior_continuations (struct inferior *inf);
  48
  49 #endif