gdb/continuations.h

   1 /* Continuations for GDB, the GNU debugger.
   2
   3    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
   4    2009, 2010, 2011 Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef CONTINUATIONS_H
  22 #define CONTINUATIONS_H
  23
  24 struct thread_info;
  25 struct inferior;
  26
  27 /* To continue the execution commands when running gdb asynchronously.
  28    A continuation structure contains a pointer to a function to be called
  29    to finish the command, once the target has stopped.  Such mechanism is
  30    used by the finish and until commands, and in the remote protocol
  31    when opening an extended-remote connection.  */
  32
  33 /* Prototype of the continuation callback functions.  */
  34 typedef void (continuation_ftype) (void *);
  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 /* Thread specific continuations.  */
  42
  43 extern void add_continuation (struct thread_info *,
  44                               continuation_ftype *, void *,
  45                               continuation_free_arg_ftype *);
  46 extern void do_all_continuations (void);
  47 extern void do_all_continuations_thread (struct thread_info *);
  48 extern void discard_all_continuations (void);
  49 extern void discard_all_continuations_thread (struct thread_info *);
  50
  51 extern void add_intermediate_continuation (struct thread_info *,
  52                                            continuation_ftype *, void *,
  53                                            continuation_free_arg_ftype *);
  54 extern void do_all_intermediate_continuations (void);
  55 extern void do_all_intermediate_continuations_thread (struct thread_info *);
  56 extern void discard_all_intermediate_continuations (void);
  57 extern void discard_all_intermediate_continuations_thread (struct thread_info *);
  58
  59 /* Inferior specific (any thread) continuations.  */
  60
  61 extern void add_inferior_continuation (continuation_ftype *,
  62                                        void *,
  63                                        continuation_free_arg_ftype *);
  64 extern void do_all_inferior_continuations (void);
  65 extern void discard_all_inferior_continuations (struct inferior *inf);
  66
  67 #endif