throw_exception_sjlj (gdb_rl_expt);
}
-/* Initialize all the necessary variables, start the event loop,
- register readline, and stdin, start the loop. The DATA is the
- interpreter data cookie, ignored for now. */
-
-void
-cli_command_loop (void *data)
-{
- display_gdb_prompt (0);
-
- /* Now it's time to start the event loop. */
- start_event_loop ();
-}
-
/* Change the function to be invoked every time there is a character
ready on stdin. This is used when the user sets the editing off,
therefore bypassing readline, and letting gdb handle the input
IE, displayed but not set. */
if (! new_prompt)
{
- if (sync_execution)
+ struct ui *ui = current_ui;
+
+ if (ui->prompt_state == PROMPTED)
+ internal_error (__FILE__, __LINE__, _("double prompt"));
+ else if (ui->prompt_state == PROMPT_BLOCKED)
{
/* This is to trick readline into not trying to display the
prompt. Even though we display the prompt using this
do_cleanups (old_chain);
return;
}
- else
+ else if (ui->prompt_state == PROMPT_NEEDED)
{
/* Display the top level prompt. */
actual_gdb_prompt = top_level_prompt ();
+ ui->prompt_state = PROMPTED;
}
}
else
return xstrdup (prompt);
}
-/* The main UI. */
-static struct ui main_ui_;
-
-struct ui *main_ui = &main_ui_;
-struct ui *current_ui = &main_ui_;
-struct ui *ui_list = &main_ui_;
-
-/* Cleanup that restores the current UI. */
-
-static void
-restore_ui_cleanup (void *data)
-{
- current_ui = (struct ui *) data;
-}
-
/* See top.h. */
-void
-switch_thru_all_uis_init (struct switch_thru_all_uis *state)
-{
- state->iter = ui_list;
- state->old_chain = make_cleanup (restore_ui_cleanup, current_ui);
-}
-
-/* See top.h. */
-
-int
-switch_thru_all_uis_cond (struct switch_thru_all_uis *state)
-{
- if (state->iter != NULL)
- {
- current_ui = state->iter;
- return 1;
- }
- else
- {
- do_cleanups (state->old_chain);
- return 0;
- }
-}
-
-/* See top.h. */
-
-void
-switch_thru_all_uis_next (struct switch_thru_all_uis *state)
-{
- state->iter = state->iter->next;
-}
+struct ui *main_ui;
+struct ui *current_ui;
+struct ui *ui_list;
/* Get a pointer to the current UI's line buffer. This is used to
construct a whole line of input from partial input. */
{
struct ui *ui = (struct ui *) client_data;
- /* Switch to the UI whose input descriptor woke up the event
- loop. */
- current_ui = ui;
-
if (error)
{
- printf_unfiltered (_("error detected on stdin\n"));
+ /* Switch to the main UI, so diagnostics always go there. */
+ current_ui = main_ui;
+
delete_file_handler (ui->input_fd);
- /* If stdin died, we may as well kill gdb. */
- quit_command ((char *) 0, stdin == ui->instream);
+ if (main_ui == ui)
+ {
+ /* If stdin died, we may as well kill gdb. */
+ printf_unfiltered (_("error detected on stdin\n"));
+ quit_command ((char *) 0, 0);
+ }
+ else
+ {
+ /* Simply delete the UI. */
+ delete_ui (ui);
+ }
}
else
{
- /* This makes sure a ^C immediately followed by further input is
- always processed in that order. E.g,. with input like
- "^Cprint 1\n", the SIGINT handler runs, marks the async signal
- handler, and then select/poll may return with stdin ready,
- instead of -1/EINTR. The
- gdb.base/double-prompt-target-event-error.exp test exercises
- this. */
+ /* Switch to the UI whose input descriptor woke up the event
+ loop. */
+ current_ui = ui;
+
+ /* This makes sure a ^C immediately followed by further input is
+ always processed in that order. E.g,. with input like
+ "^Cprint 1\n", the SIGINT handler runs, marks the async
+ signal handler, and then select/poll may return with stdin
+ ready, instead of -1/EINTR. The
+ gdb.base/double-prompt-target-event-error.exp test exercises
+ this. */
QUIT;
do
{
call_stdin_event_handler_again_p = 0;
ui->call_readline (client_data);
- } while (call_stdin_event_handler_again_p != 0);
+ }
+ while (call_stdin_event_handler_again_p != 0);
}
}
+/* See top.h. */
+
+void
+ui_register_input_event_handler (struct ui *ui)
+{
+ add_file_handler (ui->input_fd, stdin_event_handler, ui);
+}
+
+/* See top.h. */
+
+void
+ui_unregister_input_event_handler (struct ui *ui)
+{
+ delete_file_handler (ui->input_fd);
+}
+
/* Re-enable stdin after the end of an execution command in
synchronous mode, or after an error from the target, and we aborted
the exec operation. */
void
async_enable_stdin (void)
{
- if (sync_execution)
+ struct ui *ui = current_ui;
+
+ if (ui->prompt_state == PROMPT_BLOCKED)
{
- /* See NOTE in async_disable_stdin(). */
- /* FIXME: cagney/1999-09-27: Call this before clearing
- sync_execution. Current target_terminal_ours() implementations
- check for sync_execution before switching the terminal. */
target_terminal_ours ();
- sync_execution = 0;
+ ui_register_input_event_handler (ui);
+ ui->prompt_state = PROMPT_NEEDED;
}
}
void
async_disable_stdin (void)
{
- sync_execution = 1;
+ struct ui *ui = current_ui;
+
+ ui->prompt_state = PROMPT_BLOCKED;
+ delete_file_handler (ui->input_fd);
}
\f
command_handler (char *command)
{
struct ui *ui = current_ui;
- struct cleanup *stat_chain;
char *c;
- if (ui->instream == stdin)
+ if (ui->instream == ui->stdin_stream)
reinitialize_more_filter ();
- stat_chain = make_command_stats_cleanup (1);
+ scoped_command_stats stat_reporter (true);
/* Do not execute commented lines. */
for (c = command; *c == ' ' || *c == '\t'; c++)
;
if (c[0] != '#')
{
- execute_command (command, ui->instream == stdin);
+ execute_command (command, ui->instream == ui->stdin_stream);
/* Do any commands attached to breakpoint we stopped at. */
bpstat_do_actions ();
}
-
- do_cleanups (stat_chain);
}
/* Append RL, an input line returned by readline or one of its
char *rl, int repeat, char *annotation_suffix)
{
struct ui *ui = current_ui;
+ int from_tty = ui->instream == ui->stdin_stream;
char *p1;
char *cmd;
command, but leave ownership of memory to the buffer . */
cmd_line_buffer->used_size = 0;
- if (annotation_level > 1 && ui->instream == stdin)
+ if (from_tty && annotation_level > 1)
{
printf_unfiltered (("\n\032\032post-"));
puts_unfiltered (annotation_suffix);
}
/* Do history expansion if that is wished. */
- if (history_expansion_p && ui->instream == stdin
- && ISATTY (ui->instream))
+ if (history_expansion_p && from_tty && input_interactive_p (current_ui))
{
char *history_value;
int expanded;
and then later fetch it from the value history and remove the
'#'. The kill ring is probably better, but some people are in
the habit of commenting things out. */
- if (*cmd != '\0' && input_from_terminal_p ())
+ if (*cmd != '\0' && from_tty && input_interactive_p (current_ui))
gdb_add_history (cmd);
/* Save into global buffer if appropriate. */
struct ui *ui = current_ui;
char *cmd;
- cmd = handle_line_of_input (line_buffer, rl, ui->instream == stdin,
- "prompt");
+ cmd = handle_line_of_input (line_buffer, rl, 1, "prompt");
if (cmd == (char *) EOF)
{
/* stdin closed. The connection with the terminal is gone.
hung up but GDB is still alive. In such a case, we just quit
gdb killing the inferior program too. */
printf_unfiltered ("quit\n");
- execute_command ("quit", stdin == ui->instream);
+ execute_command ("quit", 1);
}
else if (cmd == NULL)
{
}
else
{
+ ui->prompt_state = PROMPT_NEEDED;
+
command_handler (cmd);
- display_gdb_prompt (0);
+
+ if (ui->prompt_state != PROMPTED)
+ display_gdb_prompt (0);
}
}
{
/* Read from stdin if we are executing a user defined command.
This is the right thing for prompt_for_continue, at least. */
- c = fgetc (ui->instream ? ui->instream : stdin);
+ c = fgetc (ui->instream != NULL ? ui->instream : ui->stdin_stream);
if (c == EOF)
{
static void
async_sigterm_handler (gdb_client_data arg)
{
- quit_force (NULL, stdin == current_ui->instream);
+ quit_force (NULL, 0);
}
/* See defs.h. */
Another source is going to be the target program (inferior), but
that must be registered only when it actually exists (I.e. after
we say 'run' or after we connect to a remote target. */
- add_file_handler (ui->input_fd, stdin_event_handler, ui);
+ ui_register_input_event_handler (ui);
}
/* Disable command input through the standard CLI channels. Used in
projects / deliverable / binutils-gdb.git / blobdiff