git.ozlabs.org Git - petitboot/blob - ui/twin/pbt-client.c

   1 /*
   2  *  Copyright Geoff Levand <geoff@infradead.org>
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; version 2 of the License.
   7  *
   8  *  This program is distributed in the hope that it will be useful,
   9  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *  GNU General Public License for more details.
  12  *
  13  *  You should have received a copy of the GNU General Public License
  14  *  along with this program; if not, write to the Free Software
  15  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #if defined(HAVE_CONFIG_H)
  19 #include "config.h"
  20 #endif
  21
  22 #define _GNU_SOURCE
  23 #include <assert.h>
  24 #include <string.h>
  25
  26 #include <pb-protocol/pb-protocol.h>
  27
  28 #include "pbt-client.h"
  29
  30 #include "log/log.h"
  31 #include "talloc/talloc.h"
  32 #include "waiter/waiter.h"
  33 #include "ui/common/discover-client.h"
  34
  35 static struct pb_opt_data *pbt_opt_data_from_item(struct pbt_item *item)
  36 {
  37         return item->data;
  38 }
  39
  40 void pbt_client_resize(struct pbt_client *client)
  41 {
  42         (void)client; // TODO
  43 }
  44
  45 void pbt_frame_status_printf(struct pbt_frame *frame, const char *format, ...)
  46 {
  47         va_list ap;
  48
  49         va_start(ap, format);
  50         // TODO
  51         (void)frame;
  52         va_end(ap);
  53 }
  54
  55 static int pbt_client_boot(struct pbt_item *item)
  56 {
  57         int result;
  58         struct pb_opt_data *opt_data = pbt_opt_data_from_item(item);
  59
  60         pb_log("%s: %s\n", __func__, pbt_item_name(item));
  61
  62         pbt_frame_status_printf(&item->pbt_client->frame, "Booting %s...",
  63                 pbt_item_name(item));
  64
  65         result = discover_client_boot(item->pbt_client->discover_client,
  66                         NULL, opt_data->opt, opt_data->bd);
  67
  68         if (result) {
  69                 pb_log("%s: failed: %s\n", __func__, opt_data->bd->image);
  70                 pbt_frame_status_printf(&item->pbt_client->frame,
  71                                 "Failed: kexec %s", opt_data->bd->image);
  72         }
  73
  74         return 0;
  75 }
  76
  77 static int pbt_client_on_edit(struct pbt_item *item)
  78 {
  79         DBGS("*** %s ***\n", pbt_item_name(item));
  80         return 0;
  81 }
  82
  83 static int pbt_device_add(struct device *dev, struct pbt_client *client)
  84 {
  85         struct pbt_frame *const frame = &client->frame;
  86         struct pbt_item *item;
  87         struct pbt_quad q;
  88         const char *icon_file;
  89
  90         pb_log("%s: %p %s: n_options %d\n", __func__, dev, dev->id,
  91                 dev->n_options);
  92
  93         pb_protocol_dump_device(dev, "", pb_log_get_stream());
  94
  95         // FIXME: check for existing dev->id
  96
  97         icon_file = dev->icon_file ? dev->icon_file : pbt_icon_chooser(dev->id);
  98
  99         item = pbt_item_create_reduced(frame->top_menu, dev->id,
 100                 frame->top_menu->n_items, icon_file);
 101
 102         if (!item)
 103                 return -1;
 104
 105         item->pb_device = dev;
 106         dev->ui_info = item;
 107         frame->top_menu->n_items++;
 108
 109         /* sub_menu */
 110         q.x = frame->top_menu->window->pixmap->width;
 111         q.y = 0;
 112         q.width = frame->top_menu->scr->tscreen->width - q.x;
 113         q.height = frame->top_menu->scr->tscreen->height;
 114
 115         item->sub_menu = pbt_menu_create(item, dev->id,
 116                 frame->top_menu->scr, frame->top_menu, &q,
 117                 &frame->top_menu->layout);
 118         if (!item->sub_menu)
 119                 return -1;
 120
 121         pbt_menu_show(frame->top_menu, 1);
 122
 123         return 0;
 124 }
 125
 126 static int pbt_boot_option_add(struct device *dev, struct boot_option *opt,
 127                 struct pbt_client *client)
 128 {
 129         struct pbt_item *opt_item, *device_item;
 130         struct pb_opt_data *opt_data;
 131
 132         device_item = dev->ui_info;
 133
 134         opt_item = pbt_item_create(device_item->sub_menu,
 135                         opt->id, device_item->sub_menu->n_items++,
 136                         opt->icon_file, opt->name, opt->description);
 137
 138         opt_item->pb_opt = opt;
 139         opt_item->pbt_client = client;
 140         opt_item->on_execute = pbt_client_boot;
 141         opt_item->on_edit = pbt_client_on_edit;
 142
 143         opt_item->data = opt_data = talloc(opt_item, struct pb_opt_data);
 144         opt_data->name = opt->name;
 145         opt_data->bd = talloc(opt_item, struct pb_boot_data);
 146         opt_data->bd->image = talloc_strdup(opt_data->bd,
 147                 opt->boot_image_file);
 148         opt_data->bd->initrd = talloc_strdup(opt_data->bd,
 149                 opt->initrd_file);
 150         opt_data->bd->args = talloc_strdup(opt_data->bd,
 151                 opt->boot_args);
 152         opt_data->opt = opt;
 153         opt_data->opt_hash = pb_opt_hash(dev, opt);
 154
 155         /* If this is the default_item select it and start timer. */
 156         if (opt_data->opt_hash == device_item->sub_menu->default_item_hash) {
 157                 device_item->selected_item = opt_item;
 158                 pbt_menu_set_selected(device_item->sub_menu, opt_item);
 159                 ui_timer_kick(&client->signal_data.timer);
 160         }
 161
 162         /* Select the first item as default. */
 163         if (!device_item->selected_item)
 164                 pbt_menu_set_selected(device_item->sub_menu, opt_item);
 165
 166         twin_screen_update(client->frame.scr->tscreen);
 167
 168         return 0;
 169 }
 170
 171 static void pbt_device_remove(struct device *dev, struct pbt_client *client)
 172 {
 173         struct pbt_frame *const frame = &client->frame;
 174         struct list *i_list = frame->top_menu->item_list;
 175         twin_window_t *last_window = NULL;
 176         struct pbt_item *removed_item;
 177         struct pbt_item *prev_item;
 178         struct pbt_item *next_item;
 179         struct pbt_item *i;
 180
 181         pb_log("%s: %p %s: n_options %d\n", __func__, dev, dev->id,
 182                 dev->n_options);
 183
 184         pb_protocol_dump_device(dev, "", pb_log_get_stream());
 185
 186         removed_item = NULL;
 187         list_for_each_entry(i_list, i, list) {
 188                 if (i->pb_device == dev) {
 189                         removed_item = i;
 190                         break;
 191                 }
 192         }
 193
 194         if (!removed_item) {
 195                 pb_log("%s: %p %s: unknown device\n", __func__, dev, dev->id);
 196                 assert(0 && "unknown device");
 197                 return;
 198         }
 199
 200         prev_item = list_prev_entry(i_list, removed_item, list);
 201         next_item = list_next_entry(i_list, removed_item, list);
 202
 203         if (removed_item == frame->top_menu->selected) {
 204                 if (prev_item)
 205                         pbt_menu_set_selected(frame->top_menu, prev_item);
 206                 else if (next_item)
 207                         pbt_menu_set_selected(frame->top_menu, next_item);
 208                 else
 209                         assert(0 && "empty list");
 210         }
 211
 212         if (next_item) {
 213
 214                 /* Shift items up. */
 215
 216                 i = next_item;
 217                 list_for_each_entry_continue(i_list, i, list) {
 218                         last_window = i->window;
 219                         i->window = list_prev_entry(i_list, i, list)->window;
 220                         twin_window_set_name(i->window, last_window->name);
 221                         i->window->client_data = last_window->client_data;
 222                 }
 223         }
 224
 225         twin_window_hide(last_window);
 226         twin_window_destroy(last_window);
 227
 228         list_remove(&removed_item->list);
 229         removed_item->window = NULL;
 230         talloc_free(removed_item);
 231         frame->top_menu->n_items--;
 232
 233         pbt_menu_show(frame->top_menu, 1);
 234         twin_screen_update(client->frame.scr->tscreen);
 235 }
 236
 237 static struct discover_client_ops pbt_client_ops = {
 238         .device_add = (void *)pbt_device_add,
 239         .boot_option_add = (void *)pbt_boot_option_add,
 240         .device_remove = (void *)pbt_device_remove,
 241 };
 242
 243 static void pbt_client_destructor(struct pbt_client *client)
 244 {
 245         pb_log("%s\n", __func__);
 246
 247         // move to screen twin_x11_destroy(twin_ctx);
 248         talloc_free(client->discover_client);
 249         memset(client, 0, sizeof(*client));
 250 }
 251
 252 struct pbt_client *pbt_client_init(enum pbt_twin_backend backend,
 253         unsigned int width, unsigned int height, int start_deamon)
 254 {
 255         struct pbt_client *pbt_client;
 256         unsigned int i;
 257
 258         pbt_client = talloc_zero(NULL, struct pbt_client);
 259
 260         if (!pbt_client) {
 261                 pb_log("%s: alloc pbt_client failed.\n", __func__);
 262                 fprintf(stderr, "%s: alloc pbt_client failed.\n", __func__);
 263                 goto fail_alloc;
 264         }
 265
 266         talloc_set_destructor(pbt_client, (void *)pbt_client_destructor);
 267
 268         pbt_client->waitset = waitset_create(pbt_client);
 269
 270         pbt_client->sig = "pbt_client";
 271         pbt_client->frame.scr = pbt_scr_init(pbt_client, pbt_client->waitset,
 272                         backend, width, height, NULL, NULL);
 273
 274
 275         if (!pbt_client->frame.scr)
 276                 goto fail_scr_init;
 277
 278         /* Loop here for scripts that just started the server. */
 279
 280 retry_start:
 281         for (i = start_deamon ? 2 : 10; i; i--) {
 282                 pbt_client->discover_client
 283                         = discover_client_init(pbt_client->waitset,
 284                                         &pbt_client_ops, pbt_client);
 285                 if (pbt_client->discover_client || !i)
 286                         break;
 287                 pb_log("%s: waiting for server %d\n", __func__, i);
 288                 sleep(1);
 289         }
 290
 291         if (!pbt_client->discover_client && start_deamon) {
 292                 int result;
 293
 294                 start_deamon = 0;
 295
 296                 result = pb_start_daemon();
 297
 298                 if (!result)
 299                         goto retry_start;
 300
 301                 pb_log("%s: discover_client_init failed.\n", __func__);
 302                 fprintf(stderr, "%s: error: discover_client_init failed.\n",
 303                         __func__);
 304                 fprintf(stderr, "could not start pb-discover, the petitboot "
 305                         "daemon.\n");
 306                 goto fail_client_init;
 307         }
 308
 309         if (!pbt_client->discover_client) {
 310                 pb_log("%s: discover_client_init failed.\n", __func__);
 311                 fprintf(stderr, "%s: error: discover_client_init failed.\n",
 312                         __func__);
 313                 fprintf(stderr, "check that pb-discover, "
 314                         "the petitboot daemon is running.\n");
 315                 goto fail_client_init;
 316         }
 317
 318         return pbt_client;
 319
 320 fail_client_init:
 321         talloc_free(pbt_client);
 322 fail_scr_init:
 323 fail_alloc:
 324         return NULL;
 325 }