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inf-loop.c
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1/* Handling of inferior events for the event loop for GDB, the GNU debugger.
2 Copyright (C) 1999-2023 Free Software Foundation, Inc.
3 Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions.
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 "inferior.h"
22#include "infrun.h"
23#include "gdbsupport/event-loop.h"
24#include "event-top.h"
25#include "inf-loop.h"
26#include "remote.h"
27#include "language.h"
28#include "gdbthread.h"
29#include "interps.h"
30#include "top.h"
31#include "observable.h"
32
33/* General function to handle events in the inferior. */
34
35void
37{
38 switch (event_type)
39 {
40 case INF_REG_EVENT:
42 break;
43
45 if (!non_stop)
46 {
47 /* Unregister the inferior from the event loop. This is done
48 so that when the inferior is not running we don't get
49 distracted by spurious inferior output. */
51 target_async (false);
52 }
53
54 /* Do all continuations associated with the whole inferior (not
55 a particular thread). */
56 if (inferior_ptid != null_ptid)
58
59 /* When running a command list (from a user command, say), these
60 are only run when the command list is all done. */
61 if (current_ui->async)
62 {
64
65 /* Don't propagate breakpoint commands errors. Either we're
66 stopping or some command resumes the inferior. The user will
67 be informed. */
68 try
69 {
71 }
72 catch (const gdb_exception &e)
73 {
74 /* If the user was running a foreground execution
75 command, then propagate the error so that the prompt
76 can be reenabled. Otherwise, the user already has
77 the prompt and is typing some unrelated command, so
78 just inform the user and swallow the exception. */
80 throw;
81 else
83 }
84 }
85 break;
86
87 default:
88 gdb_printf (gdb_stderr, _("Event type not recognized.\n"));
89 break;
90 }
91}
void bpstat_do_actions(void)
void do_all_continuations()
Definition inferior.c:177
struct ui * current_ui
Definition event-top.c:483
void exception_print(struct ui_file *file, const struct gdb_exception &e)
Definition exceptions.c:105
void inferior_event_handler(enum inferior_event_type event_type)
Definition inf-loop.c:36
ptid_t inferior_ptid
Definition infcmd.c:91
struct inferior * current_inferior(void)
Definition inferior.c:54
bool non_stop
Definition infrun.c:203
void fetch_inferior_event()
Definition infrun.c:4118
int async
Definition top.h:101
enum prompt_state prompt_state
Definition top.h:131
void target_async(bool enable)
Definition target.c:4330
bool target_can_async_p()
Definition target.c:385
bool target_has_execution(inferior *inf)
Definition target.c:202
inferior_event_type
Definition target.h:126
@ INF_REG_EVENT
Definition target.h:129
@ INF_EXEC_COMPLETE
Definition target.h:131
void check_frame_language_change(void)
Definition top.c:487
@ PROMPT_BLOCKED
Definition top.h:36
void gdb_printf(struct ui_file *stream, const char *format,...)
Definition utils.c:1865
#define gdb_stderr
Definition utils.h:193