2 * Copyright (C) 2009 Sony Computer Entertainment Inc.
3 * Copyright 2009 Sony Corp.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #if defined(HAVE_CONFIG_H)
27 #include <sys/ioctl.h>
30 #include "pb-protocol/pb-protocol.h"
31 #include "talloc/talloc.h"
32 #include "waiter/waiter.h"
33 #include "process/process.h"
34 #include "i18n/i18n.h"
35 #include "ui/common/discover-client.h"
36 #include "ui/common/ui-system.h"
38 #include "nc-boot-editor.h"
39 #include "nc-config.h"
40 #include "nc-add-url.h"
41 #include "nc-sysinfo.h"
43 #include "nc-helpscreen.h"
44 #include "nc-subset.h"
46 extern const struct help_text main_menu_help_text;
48 static struct pmenu *main_menu_init(struct cui *cui);
50 static void cui_start(void)
52 initscr(); /* Initialize ncurses. */
53 cbreak(); /* Disable line buffering. */
54 noecho(); /* Disable getch() echo. */
55 keypad(stdscr, TRUE); /* Enable num keypad keys. */
56 nonl(); /* Disable new-line translation. */
57 intrflush(stdscr, FALSE); /* Disable interrupt flush. */
58 curs_set(0); /* Make cursor invisible */
59 nodelay(stdscr, TRUE); /* Enable non-blocking getch() */
61 /* We may be operating with an incorrect $TERM type; in this case
62 * the keymappings will be slightly broken. We want at least
63 * backspace to work though, so we'll define both DEL and ^H to
65 define_key("\x7f", KEY_BACKSPACE);
66 define_key("\x08", KEY_BACKSPACE);
68 /* we need backtab too, for form navigation. vt220 doesn't include
69 * this (kcbt), but we don't want to require a full linux/xterm termcap
71 define_key("\x1b[Z", KEY_BTAB);
73 /* We'll define a few other keys too since they're commonly
74 * used for navigation but the escape character will cause
75 * Petitboot to exit if they're left undefined */
76 define_key("\x1b\x5b\x35\x7e", KEY_PPAGE);
77 define_key("\x1b\x5b\x36\x7e", KEY_NPAGE);
78 define_key("\x1b\x5b\x31\x7e", KEY_HOME);
79 define_key("\x1b\x5b\x34\x7e", KEY_END);
80 define_key("\x1b\x4f\x48", KEY_HOME);
81 define_key("\x1b\x4f\x46", KEY_END);
82 define_key("OH", KEY_HOME);
83 define_key("OF", KEY_END);
84 define_key("\x1b\x5b\x41", KEY_UP);
85 define_key("\x1b\x5b\x42", KEY_DOWN);
87 while (getch() != ERR) /* flush stdin */
91 static void cui_atexit(void)
99 * cui_abort - Signal the main cui program loop to exit.
101 * Sets cui.abort, which causes the cui_run() routine to return.
104 void cui_abort(struct cui *cui)
106 pb_log("%s: exiting\n", __func__);
111 * cui_resize - Signal the main cui program loop to resize
113 * Called at SIGWINCH.
116 void cui_resize(struct cui *cui)
118 pb_debug("%s: resizing\n", __func__);
123 * cui_on_exit - A generic main menu exit callback.
126 void cui_on_exit(struct pmenu *menu)
128 cui_abort(cui_from_pmenu(menu));
132 * cui_run_cmd - A generic cb to run the supplied command.
135 int cui_run_cmd(struct pmenu_item *item)
138 struct cui *cui = cui_from_item(item);
139 const char **cmd_argv = item->data;
141 nc_scr_status_printf(cui->current, _("Running %s..."), cmd_argv[0]);
145 result = process_run_simple_argv(item, cmd_argv);
148 redrawwin(cui->current->main_ncw);
151 pb_log("%s: failed: '%s'\n", __func__, cmd_argv[0]);
152 nc_scr_status_printf(cui->current, _("Failed: %s"),
160 * cui_boot - A generic cb to run kexec.
163 static int cui_boot(struct pmenu_item *item)
166 struct cui *cui = cui_from_item(item);
167 struct cui_opt_data *cod = cod_from_item(item);
169 assert(cui->current == &cui->main->scr);
171 pb_debug("%s: %s\n", __func__, cod->name);
173 nc_scr_status_printf(cui->current, _("Booting %s..."), cod->name);
175 result = discover_client_boot(cui->client, NULL, cod->opt, cod->bd);
178 nc_scr_status_printf(cui->current,
179 _("Failed: boot %s"), cod->bd->image);
185 static void cui_boot_editor_on_exit(struct cui *cui,
186 struct pmenu_item *item,
187 struct pb_boot_data *bd)
189 struct pmenu *menu = cui->main;
190 struct cui_opt_data *cod;
191 int idx, top, rows, cols;
192 static int user_idx = 0;
194 /* Was the edit cancelled? */
196 cui_set_current(cui, &cui->main->scr);
197 talloc_free(cui->boot_editor);
198 cui->boot_editor = NULL;
202 /* Is this was a new item, we'll need to update the menu */
206 cod = talloc_zero(NULL, struct cui_opt_data);
207 cod->name = talloc_asprintf(cod, _("User item %u"), ++user_idx);
209 item = pmenu_item_create(menu, cod->name);
215 item->on_edit = cui_item_edit;
216 item->on_execute = cui_boot;
219 talloc_steal(item, cod);
221 /* Detach the items array. */
222 set_menu_items(menu->ncm, NULL);
224 /* Insert new item at insert_pt. */
225 insert_pt = pmenu_grow(menu, 1);
226 pmenu_item_insert(menu, item, insert_pt);
228 /* Re-attach the items array. */
229 set_menu_items(menu->ncm, menu->items);
231 /* If our index is above the current top row, align
232 * us to the new top. Otherwise, align us to the new
234 menu_format(cui->main->ncm, &rows, &cols);
235 top = top_row(cui->main->ncm);
236 idx = item_index(item->nci);
241 top = idx < rows ? 0 : idx - rows + 1;
243 set_top_row(cui->main->ncm, top);
244 set_current_item(item->pmenu->ncm, item->nci);
246 nc_scr_post(&menu->scr);
251 cod->bd = talloc_steal(cod, bd);
254 cui_set_current(cui, &cui->main->scr);
255 talloc_free(cui->boot_editor);
256 cui->boot_editor = NULL;
259 void cui_item_edit(struct pmenu_item *item)
261 struct cui *cui = cui_from_item(item);
262 cui->boot_editor = boot_editor_init(cui, item, cui->sysinfo,
263 cui_boot_editor_on_exit);
264 cui_set_current(cui, boot_editor_scr(cui->boot_editor));
267 void cui_item_new(struct pmenu *menu)
269 struct cui *cui = cui_from_pmenu(menu);
270 cui->boot_editor = boot_editor_init(cui, NULL, cui->sysinfo,
271 cui_boot_editor_on_exit);
272 cui_set_current(cui, boot_editor_scr(cui->boot_editor));
275 static void cui_sysinfo_exit(struct cui *cui)
277 cui_set_current(cui, &cui->main->scr);
278 talloc_free(cui->sysinfo_screen);
279 cui->sysinfo_screen = NULL;
282 void cui_show_sysinfo(struct cui *cui)
284 cui->sysinfo_screen = sysinfo_screen_init(cui, cui->sysinfo,
286 cui_set_current(cui, sysinfo_screen_scr(cui->sysinfo_screen));
289 static void cui_config_exit(struct cui *cui)
291 cui_set_current(cui, &cui->main->scr);
292 talloc_free(cui->config_screen);
293 cui->config_screen = NULL;
296 void cui_show_config(struct cui *cui)
298 cui->config_screen = config_screen_init(cui, cui->config,
299 cui->sysinfo, cui_config_exit);
300 cui_set_current(cui, config_screen_scr(cui->config_screen));
303 static void cui_lang_exit(struct cui *cui)
305 cui_set_current(cui, &cui->main->scr);
306 talloc_free(cui->lang_screen);
307 cui->lang_screen = NULL;
310 void cui_show_lang(struct cui *cui)
312 cui->lang_screen = lang_screen_init(cui, cui->config, cui_lang_exit);
313 cui_set_current(cui, lang_screen_scr(cui->lang_screen));
316 static void cui_add_url_exit(struct cui *cui)
318 cui_set_current(cui, &cui->main->scr);
319 talloc_free(cui->add_url_screen);
320 cui->add_url_screen = NULL;
323 void cui_show_add_url(struct cui *cui)
325 cui->add_url_screen = add_url_screen_init(cui, cui_add_url_exit);
326 cui_set_current(cui, add_url_screen_scr(cui->add_url_screen));
329 static void cui_help_exit(struct cui *cui)
331 cui_set_current(cui, help_screen_return_scr(cui->help_screen));
332 talloc_free(cui->help_screen);
333 cui->help_screen = NULL;
336 void cui_show_help(struct cui *cui, const char *title,
337 const struct help_text *text)
342 if (cui->help_screen)
345 cui->help_screen = help_screen_init(cui, cui->current,
346 title, text, cui_help_exit);
348 if (cui->help_screen)
349 cui_set_current(cui, help_screen_scr(cui->help_screen));
352 static void cui_subset_exit(struct cui *cui)
354 cui_set_current(cui, subset_screen_return_scr(cui->subset_screen));
355 talloc_free(cui->subset_screen);
356 cui->subset_screen = NULL;
359 void cui_show_subset(struct cui *cui, const char *title,
365 if (cui->subset_screen)
368 cui->subset_screen = subset_screen_init(cui, cui->current,
369 title, arg, cui_subset_exit);
371 if (cui->subset_screen)
372 cui_set_current(cui, subset_screen_scr(cui->subset_screen));
376 * cui_set_current - Set the currently active screen and redraw it.
379 struct nc_scr *cui_set_current(struct cui *cui, struct nc_scr *scr)
383 DBGS("%p -> %p\n", cui->current, scr);
385 assert(cui->current != scr);
392 nc_scr_post(cui->current);
397 static bool process_global_keys(struct cui *cui, int key)
401 if (cui->current && cui->current->main_ncw)
409 * cui_process_key - Process input on stdin.
412 static int cui_process_key(void *arg)
414 struct cui *cui = cui_from_arg(arg);
416 assert(cui->current);
421 pb_debug("%s: got key %d\n", __func__, c);
426 if (!cui->has_input) {
427 cui->has_input = true;
429 pb_log("UI input received (key = %d), aborting "
430 "default boot\n", c);
431 discover_client_cancel_default(cui->client);
433 pb_log("UI input received (key = %d), aborting "
434 "once server connects\n", c);
438 if (process_global_keys(cui, c))
441 cui->current->process_key(cui->current, c);
448 * cui_process_js - Process joystick events.
451 static int cui_process_js(void *arg)
453 struct cui *cui = cui_from_arg(arg);
456 c = pjs_process_event(cui->pjs);
460 cui_process_key(arg);
467 * cui_handle_resize - Handle the term resize.
470 static void cui_handle_resize(struct cui *cui)
474 if (ioctl(1, TIOCGWINSZ, &ws) == -1) {
475 pb_log("%s: ioctl failed: %s\n", __func__, strerror(errno));
479 pb_debug("%s: {%u,%u}\n", __func__, ws.ws_row, ws.ws_col);
481 wclear(cui->current->main_ncw);
482 resize_term(ws.ws_row, ws.ws_col);
483 cui->current->resize(cui->current);
485 /* For some reason this makes ncurses redraw the screen */
487 redrawwin(cui->current->main_ncw);
488 wrefresh(cui->current->main_ncw);
492 * cui_device_add - Client device_add callback.
494 * Creates menu_items for all the device boot_options and inserts those
495 * menu_items into the main menu. Redraws the main menu if it is active.
498 static int cui_boot_option_add(struct device *dev, struct boot_option *opt,
501 struct pmenu_item *i, *dev_hdr = NULL;
502 struct cui *cui = cui_from_arg(arg);
503 struct cui_opt_data *cod;
504 const char *tab = " ";
505 unsigned int insert_pt;
506 int result, rows, cols;
510 pb_debug("%s: %p %s\n", __func__, opt, opt->id);
512 selected = current_item(cui->main->ncm);
513 menu_format(cui->main->ncm, &rows, &cols);
515 if (cui->current == &cui->main->scr)
516 nc_scr_unpost(cui->current);
518 /* Check if the boot device is new */
519 dev_hdr = pmenu_find_device(cui->main, dev, opt);
521 /* All actual boot entries are 'tabbed' across */
522 name = talloc_asprintf(cui->main, "%s%s",
523 tab, opt->name ? : "Unknown Name");
525 /* Save the item in opt->ui_info for cui_device_remove() */
526 opt->ui_info = i = pmenu_item_create(cui->main, name);
531 i->on_edit = cui_item_edit;
532 i->on_execute = cui_boot;
533 i->data = cod = talloc(i, struct cui_opt_data);
537 cod->opt_hash = pb_opt_hash(dev, opt);
538 cod->name = opt->name;
539 cod->bd = talloc(i, struct pb_boot_data);
541 cod->bd->image = talloc_strdup(cod->bd, opt->boot_image_file);
542 cod->bd->initrd = talloc_strdup(cod->bd, opt->initrd_file);
543 cod->bd->dtb = talloc_strdup(cod->bd, opt->dtb_file);
544 cod->bd->args = talloc_strdup(cod->bd, opt->boot_args);
546 /* This disconnects items array from menu. */
547 result = set_menu_items(cui->main->ncm, NULL);
550 pb_log("%s: set_menu_items failed: %d\n", __func__, result);
552 /* Insert new items at insert_pt. */
554 insert_pt = pmenu_grow(cui->main, 2);
555 pmenu_item_insert(cui->main, dev_hdr, insert_pt);
556 pb_log("%s: adding new device hierarchy %s\n",
557 __func__,opt->device_id);
558 pmenu_item_insert(cui->main, i, insert_pt+1);
560 insert_pt = pmenu_grow(cui->main, 1);
561 pmenu_item_add(cui->main, i, insert_pt);
564 pb_log("%s: adding opt '%s'\n", __func__, cod->name);
565 pb_log(" image '%s'\n", cod->bd->image);
566 pb_log(" initrd '%s'\n", cod->bd->initrd);
567 pb_log(" args '%s'\n", cod->bd->args);
569 /* Re-attach the items array. */
570 result = set_menu_items(cui->main->ncm, cui->main->items);
573 pb_log("%s: set_menu_items failed: %d\n", __func__, result);
576 pb_log("%s\n", __func__);
577 pmenu_dump_items(cui->main->items,
578 item_count(cui->main->ncm) + 1);
581 if (!item_visible(selected)) {
584 top = top_row(cui->main->ncm);
585 idx = item_index(selected);
587 /* If our index is above the current top row, align
588 * us to the new top. Otherwise, align us to the new
590 top = top < idx ? idx - rows + 1 : idx;
592 set_top_row(cui->main->ncm, top);
593 set_current_item(cui->main->ncm, selected);
596 if (cui->current == &cui->main->scr)
597 nc_scr_post(cui->current);
603 * cui_device_remove - Client device remove callback.
605 * Removes all the menu_items for the device from the main menu and redraws the
606 * main menu if it is active.
609 static void cui_device_remove(struct device *dev, void *arg)
611 struct cui *cui = cui_from_arg(arg);
612 struct boot_option *opt;
614 int rows, cols, top, last;
617 pb_log("%s: %p %s\n", __func__, dev, dev->id);
619 if (cui->current == &cui->main->scr)
620 nc_scr_unpost(cui->current);
622 /* This disconnects items array from menu. */
624 result = set_menu_items(cui->main->ncm, NULL);
627 pb_log("%s: set_menu_items failed: %d\n", __func__, result);
629 list_for_each_entry(&dev->boot_options, opt, list) {
630 struct pmenu_item *item = pmenu_item_from_arg(opt->ui_info);
632 assert(pb_protocol_device_cmp(dev, cod_from_item(item)->dev));
633 pmenu_remove(cui->main, item);
636 /* Manually remove remaining device hierarchy item */
637 for (i=0; i < cui->main->item_count; i++) {
638 struct pmenu_item *item = item_userptr(cui->main->items[i]);
639 if (!item || !item->data )
642 struct cui_opt_data *data = item->data;
643 if (data && data->dev && data->dev == dev)
644 pmenu_remove(cui->main,item);
647 /* Re-attach the items array. */
649 result = set_menu_items(cui->main->ncm, cui->main->items);
651 /* Move cursor to 'Exit' menu entry */
652 menu_format(cui->main->ncm, &rows, &cols);
653 last = cui->main->item_count - 1;
654 set_current_item(cui->main->ncm, cui->main->items[last]);
655 if (!item_visible(cui->main->items[last])) {
656 top = last < rows ? 0 : last - rows + 1;
657 set_top_row(cui->main->ncm, top);
661 pb_log("%s: set_menu_items failed: %d\n", __func__, result);
664 pb_log("%s\n", __func__);
665 pmenu_dump_items(cui->main->items,
666 item_count(cui->main->ncm) + 1);
669 if (cui->current == &cui->main->scr)
670 nc_scr_post(cui->current);
673 static void cui_update_status(struct boot_status *status, void *arg)
675 struct cui *cui = cui_from_arg(arg);
677 nc_scr_status_printf(cui->current,
679 status->type == BOOT_STATUS_ERROR ?
680 _("Error") : _("Info"),
685 static void cui_update_mm_title(struct cui *cui)
687 struct nc_frame *frame = &cui->main->scr.frame;
689 talloc_free(frame->rtitle);
691 frame->rtitle = talloc_strdup(cui->main, cui->sysinfo->type);
692 if (cui->sysinfo->identifier)
693 frame->rtitle = talloc_asprintf_append(frame->rtitle,
694 " %s", cui->sysinfo->identifier);
696 if (cui->current == &cui->main->scr)
697 nc_scr_post(cui->current);
700 static void cui_update_sysinfo(struct system_info *sysinfo, void *arg)
702 struct cui *cui = cui_from_arg(arg);
703 cui->sysinfo = talloc_steal(cui, sysinfo);
705 /* if we're currently displaying the system info screen, inform it
706 * of the updated information. */
707 if (cui->sysinfo_screen)
708 sysinfo_screen_update(cui->sysinfo_screen, sysinfo);
710 if (cui->subset_screen)
711 subset_screen_update(cui->subset_screen);
713 /* ... and do the same with the config screen... */
714 if (cui->config_screen)
715 config_screen_update(cui->config_screen, cui->config, sysinfo);
717 /* ... and the boot editor. */
718 if (cui->boot_editor)
719 boot_editor_update(cui->boot_editor, sysinfo);
721 cui_update_mm_title(cui);
724 static void cui_update_language(struct cui *cui, char *lang)
729 cur_lang = setlocale(LC_ALL, NULL);
730 if (cur_lang && !strcmp(cur_lang, lang))
733 setlocale(LC_ALL, lang);
735 /* we'll need to update the menu: drop all items and repopulate */
736 repost_menu = cui->current == &cui->main->scr;
738 nc_scr_unpost(cui->current);
740 talloc_free(cui->main);
741 cui->main = main_menu_init(cui);
744 cui->current = &cui->main->scr;
745 nc_scr_post(cui->current);
748 discover_client_enumerate(cui->client);
751 static void cui_update_config(struct config *config, void *arg)
753 struct cui *cui = cui_from_arg(arg);
754 cui->config = talloc_steal(cui, config);
757 cui_update_language(cui, config->lang);
759 if (cui->subset_screen)
760 subset_screen_update(cui->subset_screen);
762 if (cui->config_screen)
763 config_screen_update(cui->config_screen, config, cui->sysinfo);
765 if (config->safe_mode)
766 nc_scr_status_printf(cui->current,
767 _("SAFE MODE: select '%s' to continue"),
768 _("Rescan devices"));
771 int cui_send_config(struct cui *cui, struct config *config)
773 return discover_client_send_config(cui->client, config);
776 int cui_send_url(struct cui *cui, char * url)
778 return discover_client_send_url(cui->client, url);
781 void cui_send_reinit(struct cui *cui)
783 discover_client_send_reinit(cui->client);
786 static int menu_sysinfo_execute(struct pmenu_item *item)
788 cui_show_sysinfo(cui_from_item(item));
792 static int menu_config_execute(struct pmenu_item *item)
794 cui_show_config(cui_from_item(item));
798 static int menu_lang_execute(struct pmenu_item *item)
800 cui_show_lang(cui_from_item(item));
804 static int menu_reinit_execute(struct pmenu_item *item)
806 if (cui_from_item(item)->client)
807 cui_send_reinit(cui_from_item(item));
811 static int menu_add_url_execute(struct pmenu_item *item)
813 if (cui_from_item(item)->client)
814 cui_show_add_url(cui_from_item(item));
819 * pb_mm_init - Setup the main menu instance.
821 static struct pmenu *main_menu_init(struct cui *cui)
823 struct pmenu_item *i;
827 m = pmenu_init(cui, 7, cui_on_exit);
829 pb_log("%s: failed\n", __func__);
833 m->on_new = cui_item_new;
835 m->scr.frame.ltitle = talloc_asprintf(m,
836 "Petitboot (" PACKAGE_VERSION ")");
837 m->scr.frame.rtitle = NULL;
838 m->scr.frame.help = talloc_strdup(m,
839 _("Enter=accept, e=edit, n=new, x=exit, l=language, h=help"));
840 m->scr.frame.status = talloc_strdup(m, _("Welcome to Petitboot"));
842 /* add a separator */
843 i = pmenu_item_create(m, " ");
844 item_opts_off(i->nci, O_SELECTABLE);
845 pmenu_item_insert(m, i, 0);
847 /* add system items */
848 i = pmenu_item_create(m, _("System information"));
849 i->on_execute = menu_sysinfo_execute;
850 pmenu_item_insert(m, i, 1);
852 i = pmenu_item_create(m, _("System configuration"));
853 i->on_execute = menu_config_execute;
854 pmenu_item_insert(m, i, 2);
856 /* this label isn't translated, so we don't want a gettext() here */
857 i = pmenu_item_create(m, "Language");
858 i->on_execute = menu_lang_execute;
859 pmenu_item_insert(m, i, 3);
861 i = pmenu_item_create(m, _("Rescan devices"));
862 i->on_execute = menu_reinit_execute;
863 pmenu_item_insert(m, i, 4);
865 i = pmenu_item_create(m, _("Retrieve config from URL"));
866 i->on_execute = menu_add_url_execute;
867 pmenu_item_insert(m, i, 5);
869 i = pmenu_item_create(m, _("Exit to shell"));
870 i->on_execute = pmenu_exit_cb;
871 pmenu_item_insert(m, i, 6);
873 result = pmenu_setup(m);
876 pb_log("%s:%d: pmenu_setup failed: %s\n", __func__, __LINE__,
881 m->help_title = _("main menu");
882 m->help_text = &main_menu_help_text;
884 menu_opts_off(m->ncm, O_SHOWDESC);
885 set_menu_mark(m->ncm, " *");
886 set_current_item(m->ncm, i->nci);
895 static struct discover_client_ops cui_client_ops = {
897 .boot_option_add = cui_boot_option_add,
898 .device_remove = cui_device_remove,
899 .update_status = cui_update_status,
900 .update_sysinfo = cui_update_sysinfo,
901 .update_config = cui_update_config,
904 /* cui_server_wait - Connect to the discover server.
905 * @arg: Pointer to the cui instance.
907 * A timeout callback that attempts to connect to the discover server; on
908 * failure it registers itself with a one second timeout to try again.
909 * On success the cui->client struct will be set.
911 * Since this updates the status line when called it must not be called
912 * before the UI is ready.
914 static int cui_server_wait(void *arg)
916 struct cui *cui = cui_from_arg(arg);
919 pb_debug("We already have a server!\n");
923 /* We haven't yet connected to the server */
924 pb_log("Trying to connect...\n");
925 cui->client = discover_client_init(cui->waitset,
926 &cui_client_ops, cui);
929 waiter_register_timeout(cui->waitset, 1000, cui_server_wait,
931 nc_scr_status_printf(cui->current, "Info: Waiting for server");
933 nc_scr_status_printf(cui->current, "Info: Connected to server!");
934 talloc_steal(cui, cui->client);
936 if (cui->has_input) {
937 pb_log("Aborting default boot on server connect\n");
938 discover_client_cancel_default(cui->client);
946 * cui_init - Setup the cui instance.
947 * @platform_info: A value for the struct cui platform_info member.
949 * Returns a pointer to a struct cui on success, or NULL on error.
951 * Allocates the cui instance, sets up the client and stdin waiters, and
952 * sets up the ncurses menu screen.
955 struct cui *cui_init(void* platform_info,
956 int (*js_map)(const struct js_event *e), int start_daemon, int timeout)
961 cui = talloc_zero(NULL, struct cui);
963 pb_log("%s: alloc cui failed.\n", __func__);
964 fprintf(stderr, _("%s: alloc cui failed.\n"), __func__);
968 cui->c_sig = pb_cui_sig;
969 cui->platform_info = platform_info;
970 cui->waitset = waitset_create(cui);
972 process_init(cui, cui->waitset, false);
974 /* Loop here for scripts that just started the server. */
977 for (i = start_daemon ? 2 : 15; i && timeout; i--) {
978 cui->client = discover_client_init(cui->waitset,
979 &cui_client_ops, cui);
980 if (cui->client || !i)
982 pb_log("%s: waiting for server %d\n", __func__, i);
986 if (!cui->client && start_daemon) {
991 result = pb_start_daemon(cui);
996 pb_log("%s: discover_client_init failed.\n", __func__);
997 fprintf(stderr, _("%s: error: discover_client_init failed.\n"),
999 fprintf(stderr, _("could not start pb-discover, the petitboot "
1001 goto fail_client_init;
1004 if (!cui->client && !timeout) {
1005 /* Have the first timeout fire immediately so we can check
1006 * for the server as soon as the UI is ready */
1007 waiter_register_timeout(cui->waitset, 0,
1008 cui_server_wait, cui);
1009 } else if (!cui->client) {
1010 pb_log("%s: discover_client_init failed.\n", __func__);
1011 fprintf(stderr, _("%s: error: discover_client_init failed.\n"),
1013 fprintf(stderr, _("check that pb-discover, "
1014 "the petitboot daemon is running.\n"));
1015 goto fail_client_init;
1019 talloc_steal(cui, cui->client);
1022 cui->main = main_menu_init(cui);
1024 goto fail_client_init;
1026 waiter_register_io(cui->waitset, STDIN_FILENO, WAIT_IN,
1027 cui_process_key, cui);
1031 cui->pjs = pjs_init(cui, js_map);
1034 waiter_register_io(cui->waitset, pjs_get_fd(cui->pjs),
1035 WAIT_IN, cui_process_js, cui);
1047 * cui_run - The main cui program loop.
1048 * @cui: The cui instance.
1049 * @main: The menu to use as the main menu.
1051 * Runs the cui engine. Does not return until indicated to do so by some
1052 * user action, or an error occurs. Frees the cui object on return.
1053 * Returns 0 on success (return to shell), -1 on error (should restart).
1056 int cui_run(struct cui *cui)
1060 cui->current = &cui->main->scr;
1061 cui->default_item = 0;
1063 nc_scr_post(cui->current);
1066 int result = waiter_poll(cui->waitset);
1069 pb_log("%s: poll: %s\n", __func__, strerror(errno));
1076 while (cui->resize) {
1078 cui_handle_resize(cui);
1084 return cui->abort ? 0 : -1;