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Diffstat (limited to 'gdb/event-top.h')
-rw-r--r-- | gdb/event-top.h | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/gdb/event-top.h b/gdb/event-top.h deleted file mode 100644 index 24044a5..0000000 --- a/gdb/event-top.h +++ /dev/null @@ -1,111 +0,0 @@ -/* Definitions used by GDB event-top.c. - Copyright 1999, 2001 Free Software Foundation, Inc. - Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* Stack for prompts. Each prompt is composed as a prefix, a prompt - and a suffix. The prompt to be displayed at any given time is the - one on top of the stack. A stack is necessary because of cases in - which the execution of a gdb command requires further input from - the user, like for instance 'commands' for breakpoints and - 'actions' for tracepoints. In these cases, the prompt is '>' and - gdb should process input using the asynchronous readline interface - and the event loop. In order to achieve this, we need to save - somewhere the state of GDB, i.e. that it is processing user input - as part of a command and not as part of the top level command loop. - The prompt stack represents part of the saved state. Another part - would be the function that readline would invoke after a whole line - of input has ben entered. This second piece would be something - like, for instance, where to return within the code for the actions - commands after a line has been read. This latter portion has not - beeen implemented yet. The need for a 3-part prompt arises from - the annotation level. When this is set to 2, the prompt is - actually composed of a prefix, the prompt itself and a suffix. */ - -/* At any particular time there will be always at least one prompt on - the stack, the one being currently displayed by gdb. If gdb is - using annotation level equal 2, there will be 2 prompts on the - stack: the usual one, w/o prefix and suffix (at top - 1), and the - 'composite' one with prefix and suffix added (at top). At this - time, this is the only use of the prompt stack. Resetting annotate - to 0 or 1, pops the top of the stack, resetting its size to one - element. The MAXPROMPTS limit is safe, for now. Once other cases - are dealt with (like the different prompts used for 'commands' or - 'actions') this array implementation of the prompt stack may have - to change. */ - -#define MAXPROMPTS 10 -struct prompts - { - struct - { - char *prefix; - char *prompt; - char *suffix; - } - prompt_stack[MAXPROMPTS]; - int top; - }; - -#define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt -#define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix -#define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix - -/* Exported functions from event-top.c. - FIXME: these should really go into top.h. */ - -extern void display_gdb_prompt (char *new_prompt); -extern void async_init_signals (void); -extern void set_async_editing_command (char *args, int from_tty, - struct cmd_list_element *c); -extern void set_async_annotation_level (char *args, int from_tty, - struct cmd_list_element *c); -extern void set_async_prompt (char *args, int from_tty, - struct cmd_list_element *c); - -/* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */ -#ifndef STOP_SIGNAL -#include <signal.h> -#ifdef SIGTSTP -#define STOP_SIGNAL SIGTSTP -extern void handle_stop_sig (int sig); -#endif -#endif -extern void handle_sigint (int sig); -extern void pop_prompt (void); -extern void push_prompt (char *prefix, char *prompt, char *suffix); -extern void gdb_readline2 (void *client_data); -extern void mark_async_signal_handler_wrapper (void *token); -extern void async_request_quit (void *arg); -extern void stdin_event_handler (int error, void *client_data); -extern void async_disable_stdin (void); -extern void async_enable_stdin (void *dummy); - -/* Exported variables from event-top.c. - FIXME: these should really go into top.h. */ - -extern int async_command_editing_p; -extern int exec_done_display_p; -extern char *async_annotation_suffix; -extern char *new_async_prompt; -extern struct prompts the_prompts; -extern void (*call_readline) (void *); -extern void (*input_handler) (char *); -extern int input_fd; -extern void (*after_char_processing_hook) (void); |