diff options
Diffstat (limited to 'gdb/event-top.c')
| -rw-r--r-- | gdb/event-top.c | 51 |
1 files changed, 49 insertions, 2 deletions
diff --git a/gdb/event-top.c b/gdb/event-top.c index 664543cfc69..c6e3b7ee367 100644 --- a/gdb/event-top.c +++ b/gdb/event-top.c @@ -437,8 +437,55 @@ top_level_prompt (void) return xstrdup (prompt); } -static struct ui current_ui_; -struct ui *current_ui = ¤t_ui_; +/* The main UI. This is the UI that is bound to stdin/stdout/stderr. + It always exists and is created automatically when GDB starts + up. */ +static struct 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; +} /* Get a pointer to the current UI's line buffer. This is used to construct a whole line of input from partial input. */ |