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event-top.h revision 1.1.1.5 
      1 /* Definitions used by event-top.c, for GDB, the GNU debugger.
      2 
      3    Copyright (C) 1999-2019 Free Software Foundation, Inc.
      4 
      5    Written by Elena Zannoni <ezannoni (at) 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 int set_editing_cmd_var;
     56 extern int 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 #endif
     74