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be34f849 PA |
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 | ||
fa4cd53f PA |
33 | /* Prototype of the continuation callback functions. ARG is the |
34 | continuation argument registered in the corresponding | |
35 | add_*_continuation call. ERR is true when the command should be | |
36 | cancelled instead of finished normally. In that case, the | |
37 | continuation should clean up whatever state had been set up for the | |
38 | command in question (e.g., remove momentary breakpoints). This | |
39 | happens e.g., when an error was thrown while handling a target | |
40 | event, or when the inferior thread the command was being executed | |
41 | on exits. */ | |
42 | typedef void (continuation_ftype) (void *arg, int err); | |
be34f849 PA |
43 | |
44 | /* Prototype of the function responsible for releasing the argument | |
45 | passed to the continuation callback functions, either when the | |
46 | continuation is called, or discarded. */ | |
47 | typedef void (continuation_free_arg_ftype) (void *); | |
48 | ||
49 | /* Thread specific continuations. */ | |
50 | ||
51 | extern void add_continuation (struct thread_info *, | |
52 | continuation_ftype *, void *, | |
53 | continuation_free_arg_ftype *); | |
fa4cd53f PA |
54 | extern void do_all_continuations (int err); |
55 | extern void do_all_continuations_thread (struct thread_info *, int err); | |
be34f849 PA |
56 | extern void discard_all_continuations (void); |
57 | extern void discard_all_continuations_thread (struct thread_info *); | |
58 | ||
59 | extern void add_intermediate_continuation (struct thread_info *, | |
60 | continuation_ftype *, void *, | |
61 | continuation_free_arg_ftype *); | |
fa4cd53f PA |
62 | extern void do_all_intermediate_continuations (int err); |
63 | extern void do_all_intermediate_continuations_thread (struct thread_info *, int err); | |
be34f849 PA |
64 | extern void discard_all_intermediate_continuations (void); |
65 | extern void discard_all_intermediate_continuations_thread (struct thread_info *); | |
66 | ||
67 | /* Inferior specific (any thread) continuations. */ | |
68 | ||
69 | extern void add_inferior_continuation (continuation_ftype *, | |
70 | void *, | |
71 | continuation_free_arg_ftype *); | |
fa4cd53f | 72 | extern void do_all_inferior_continuations (int err); |
be34f849 PA |
73 | extern void discard_all_inferior_continuations (struct inferior *inf); |
74 | ||
75 | #endif |