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event-top.h revision 1.6.4.1 
      1 /* Definitions used by event-top.c, for GDB, the GNU debugger.
      2 
      3    Copyright (C) 1999-2017 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 struct cmd_list_element;
     26 
     27 /* Exported functions from event-top.c.
     28    FIXME: these should really go into top.h.  */
     29 
     30 extern void display_gdb_prompt (const char *new_prompt);
     31 extern void gdb_setup_readline (int);
     32 extern void gdb_disable_readline (void);
     33 extern void async_init_signals (void);
     34 extern void change_line_handler (int);
     35 
     36 extern void command_line_handler (char *rl);
     37 extern void command_handler (char *command);
     38 
     39 /* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT.  */
     40 #ifndef STOP_SIGNAL
     41 #include <signal.h>
     42 #ifdef SIGTSTP
     43 #define STOP_SIGNAL SIGTSTP
     44 extern void handle_stop_sig (int sig);
     45 #endif
     46 #endif
     47 extern void handle_sigint (int sig);
     48 extern void handle_sigterm (int sig);
     49 extern void async_request_quit (void *arg);
     50 extern void stdin_event_handler (int error, void *client_data);
     51 extern void async_disable_stdin (void);
     52 extern void async_enable_stdin (void);
     53 
     54 /* Exported variables from event-top.c.
     55    FIXME: these should really go into top.h.  */
     56 
     57 extern int set_editing_cmd_var;
     58 extern int exec_done_display_p;
     59 extern struct prompts the_prompts;
     60 extern void (*after_char_processing_hook) (void);
     61 extern int call_stdin_event_handler_again_p;
     62 extern void gdb_readline_no_editing_callback (void *client_data);
     63 
     64 /* Wrappers for rl_callback_handler_remove and
     65    rl_callback_handler_install that keep track of whether the callback
     66    handler is installed in readline.  Do not call the readline
     67    versions directly.  */
     68 extern void gdb_rl_callback_handler_remove (void);
     69 extern void gdb_rl_callback_handler_install (const char *prompt);
     70 
     71 /* Reinstall the readline callback handler (with no prompt), if not
     72    currently installed.  */
     73 extern void gdb_rl_callback_handler_reinstall (void);
     74 
     75 #endif
     76