| 1 | /* Definitions used by event-top.c, for GDB, the GNU debugger. |
| 2 | |
| 3 | Copyright (C) 1999-2020 Free Software Foundation, Inc. |
| 4 | |
| 5 | Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions. |
| 6 | |
| 7 | This file is part of GDB. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 3 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 21 | |
| 22 | #ifndef EVENT_TOP_H |
| 23 | #define EVENT_TOP_H |
| 24 | |
| 25 | #include <signal.h> |
| 26 | |
| 27 | struct cmd_list_element; |
| 28 | |
| 29 | /* Exported functions from event-top.c. |
| 30 | FIXME: these should really go into top.h. */ |
| 31 | |
| 32 | extern void display_gdb_prompt (const char *new_prompt); |
| 33 | extern void gdb_setup_readline (int); |
| 34 | extern void gdb_disable_readline (void); |
| 35 | extern void async_init_signals (void); |
| 36 | extern void change_line_handler (int); |
| 37 | |
| 38 | extern void command_line_handler (gdb::unique_xmalloc_ptr<char> &&rl); |
| 39 | extern void command_handler (const char *command); |
| 40 | |
| 41 | #ifdef SIGTSTP |
| 42 | extern void handle_sigtstp (int sig); |
| 43 | #endif |
| 44 | |
| 45 | extern void handle_sigint (int sig); |
| 46 | extern void handle_sigterm (int sig); |
| 47 | extern void async_request_quit (void *arg); |
| 48 | extern void stdin_event_handler (int error, void *client_data); |
| 49 | extern void async_disable_stdin (void); |
| 50 | extern void async_enable_stdin (void); |
| 51 | |
| 52 | /* Exported variables from event-top.c. |
| 53 | FIXME: these should really go into top.h. */ |
| 54 | |
| 55 | extern bool set_editing_cmd_var; |
| 56 | extern bool exec_done_display_p; |
| 57 | extern struct prompts the_prompts; |
| 58 | extern void (*after_char_processing_hook) (void); |
| 59 | extern int call_stdin_event_handler_again_p; |
| 60 | extern void gdb_readline_no_editing_callback (void *client_data); |
| 61 | |
| 62 | /* Wrappers for rl_callback_handler_remove and |
| 63 | rl_callback_handler_install that keep track of whether the callback |
| 64 | handler is installed in readline. Do not call the readline |
| 65 | versions directly. */ |
| 66 | extern void gdb_rl_callback_handler_remove (void); |
| 67 | extern void gdb_rl_callback_handler_install (const char *prompt); |
| 68 | |
| 69 | /* Reinstall the readline callback handler (with no prompt), if not |
| 70 | currently installed. */ |
| 71 | extern void gdb_rl_callback_handler_reinstall (void); |
| 72 | |
| 73 | /* The SIGSEGV handler for this thread, or NULL if there is none. GDB |
| 74 | always installs a global SIGSEGV handler, and then lets threads |
| 75 | indicate their interest in handling the signal by setting this |
| 76 | thread-local variable. */ |
| 77 | extern thread_local void (*thread_local_segv_handler) (int); |
| 78 | |
| 79 | #endif |