err.no Git - mapper/blob - src/map-download.c

   1 /*
   2  * This file is part of mapper
   3  *
   4  * Copyright (C) 2007 Kaj-Michael Lang
   5  * Copyright (C) 2006-2007 John Costigan.
   6  *
   7  * POI and GPS-Info code originally written by Cezary Jackiewicz.
   8  *
   9  * Default map data provided by http://www.openstreetmap.org/
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License along
  22  * with this program; if not, write to the Free Software Foundation, Inc.,
  23  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24  */
  25
  26 #include "config.h"
  27
  28 #include <unistd.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <strings.h>
  32 #include <stddef.h>
  33 #include <locale.h>
  34 #include <math.h>
  35 #include <errno.h>
  36 #include <sys/wait.h>
  37 #include <glib/gstdio.h>
  38 #include <fcntl.h>
  39 #include <curl/multi.h>
  40 #include <libintl.h>
  41 #include <locale.h>
  42
  43 #include "hildon-mapper.h"
  44
  45 #include "utils.h"
  46 #include "osm.h"
  47 #include "db.h"
  48 #include "osm-db.h"
  49 #include "poi.h"
  50 #include "route.h"
  51 #include "gps.h"
  52 #include "mapper-types.h"
  53 #include "ui-common.h"
  54 #include "settings.h"
  55 #include "latlon.h"
  56 #include "gpx.h"
  57 #include "map-download.h"
  58 #include "iap.h"
  59 #include "map-repo.h"
  60 #include "gtkmap.h"
  61
  62 static guint _num_downloads=0;
  63 static guint _curr_download=0;
  64
  65 static GQueue *curl_easy_queue=NULL;
  66 static GTree *pui_tree=NULL;
  67 static GTree *downloading_tree=NULL;
  68 static GHashTable *pui_by_easy=NULL;
  69
  70 static gchar *map_construct_url(guint tilex, guint tiley, guint zoom);
  71
  72 static gboolean
  73 get_next_pui(gpointer key, gpointer value, ProgressUpdateInfo ** data)
  74 {
  75 *data = key;
  76 return TRUE;
  77 }
  78
  79 static gint
  80 download_comparefunc(const ProgressUpdateInfo * a, const ProgressUpdateInfo * b, gpointer user_data)
  81 {
  82 gint diff = (a->priority - b->priority);
  83 if (diff)
  84         return diff;
  85 diff = (a->tilex - b->tilex);
  86 if (diff)
  87         return diff;
  88 diff = (a->tiley - b->tiley);
  89 if (diff)
  90         return diff;
  91 diff = (a->zoom - b->zoom);
  92 if (diff)
  93         return diff;
  94 diff = (a->repo - b->repo);
  95 if (diff)
  96         return diff;
  97 /* Otherwise, deletes are "greatest" (least priority). */
  98 if (!a->retries)
  99         return (b->retries ? -1 : 0);
 100 else if (!b->retries)
 101         return (a->retries ? 1 : 0);
 102 /* Do updates after non-updates (because they'll both be done anyway). */
 103 return (a->retries - b->retries);
 104 }
 105
 106 /**
 107  * Free a ProgressUpdateInfo data structure that was allocated during the
 108  * auto-map-download process.
 109  */
 110 static void
 111 progress_update_info_free(ProgressUpdateInfo * pui)
 112 {
 113 g_free(pui->src_str);
 114 g_free(pui->dest_str);
 115 g_slice_free(ProgressUpdateInfo, pui);
 116 }
 117
 118 gboolean
 119 map_download_timeout()
 120 {
 121 static guint destroy_counter = 50;
 122 gint num_transfers = 0, num_msgs = 0;
 123 gint deletes_left = 50; /* only do 50 deletes at a time. */
 124 CURLMsg *msg;
 125
 126 if (_curl_multi && CURLM_CALL_MULTI_PERFORM == curl_multi_perform(_curl_multi, &num_transfers))
 127         return TRUE;    /* Give UI a chance first. */
 128
 129 while (_curl_multi && (msg = curl_multi_info_read(_curl_multi, &num_msgs))) {
 130         if (msg->msg == CURLMSG_DONE) {
 131                 if (msg->easy_handle == _autoroute_data.curl_easy) {
 132                         /* This is the autoroute download. */
 133                         /* Now, parse the autoroute and update the display. */
 134                         if (_autoroute_data.enabled && gpx_parse(&_route, _autoroute_data.rdl_data.bytes, _autoroute_data.rdl_data.bytes_read, 0)) {
 135                                 /* Find the nearest route point, if we're connected. */
 136                                 path_find_nearest_point(_route);
 137                         }
 138                         route_cancel_autoroute(_route, TRUE);   /* We're done. Clean up. */
 139                 } else {
 140                         ProgressUpdateInfo *pui = g_hash_table_lookup(pui_by_easy, msg->easy_handle);
 141                         g_queue_push_head(curl_easy_queue, msg->easy_handle);
 142                         g_hash_table_remove(pui_by_easy, msg->easy_handle);
 143                         fclose(pui->file);
 144                         if (msg->data.result != CURLE_OK)
 145                                 g_unlink(pui->dest_str);        /* Delete so we try again. */
 146                         curl_multi_remove_handle(_curl_multi, msg->easy_handle);
 147                         g_idle_add_full(G_PRIORITY_HIGH_IDLE, (GSourceFunc)map_download_idle_refresh, pui, NULL);
 148                 }
 149         }
 150 }
 151
 152 /* Up to 1 transfer per tile. */
 153 while (num_transfers < (4*4) && g_tree_nnodes(pui_tree)) {
 154         ProgressUpdateInfo *pui;
 155         g_tree_foreach(pui_tree, (GTraverseFunc)get_next_pui, &pui);
 156
 157         if (pui->retries) {
 158                 /* This is a download. */
 159                 FILE *f;
 160                 g_tree_steal(pui_tree, pui);
 161                 g_tree_insert(downloading_tree, pui, pui);
 162
 163                 pui->src_str=map_construct_url(pui->tilex, pui->tiley, pui->zoom);
 164
 165                 if (!pui->src_str) {
 166                         /* Failed to generate URL. */
 167                         g_debug("Failed to generate tile download URL");
 168                         g_idle_add_full(G_PRIORITY_HIGH_IDLE,(GSourceFunc)map_download_idle_refresh, pui, NULL);
 169                         continue;
 170                 }
 171
 172                 pui->dest_str=g_strdup_printf("%s/%u/%u/%u.jpg", pui->repo->cache_dir, pui->zoom, pui->tilex, pui->tiley);
 173
 174                 /* Check to see if we need to overwrite. */
 175                 if (pui->retries > 0) {
 176                         /* We're not updating - check if file already exists. */
 177                         if (g_file_test(pui->dest_str, G_FILE_TEST_EXISTS)) {
 178                                 g_idle_add_full(G_PRIORITY_HIGH_IDLE, (GSourceFunc)map_download_idle_refresh, pui, NULL);
 179                                 continue;
 180                         }
 181                 }
 182
 183                 /* Attempt to open the file for writing. */
 184                 if (!(f=g_fopen(pui->dest_str, "w")) && errno == ENOENT) {
 185                         /* Directory doesn't exist yet - create it, then we'll retry */
 186                         gchar buffer[BUFFER_SIZE];
 187                         g_snprintf(buffer, sizeof(buffer), "%s/%u/%u", pui->repo->cache_dir, pui->zoom, pui->tilex);
 188                         g_mkdir_with_parents(buffer, 0775);
 189                         f=g_fopen(pui->dest_str, "w");
 190                 }
 191
 192                 if (f) {
 193                         CURL *curl_easy;
 194                         pui->file = f;
 195                         curl_easy = g_queue_pop_tail(curl_easy_queue);
 196                         if (!curl_easy) {
 197                                 /* Need a new curl_easy. */
 198                                 MACRO_CURL_EASY_INIT(curl_easy);
 199                         }
 200                         curl_easy_setopt(curl_easy, CURLOPT_URL, pui->src_str);
 201                         curl_easy_setopt(curl_easy, CURLOPT_WRITEDATA, f);
 202                         g_hash_table_insert(pui_by_easy, curl_easy, pui);
 203                         curl_multi_add_handle(_curl_multi, curl_easy);
 204                         num_transfers++;
 205                 } else {
 206                         /* Unable to open tile file for writing. */
 207                         gchar buffer[BUFFER_SIZE];
 208                         g_snprintf(buffer, sizeof(buffer), "%s:\n%s", _("Failed to open file for writing"), pui->dest_str);
 209                         MACRO_BANNER_SHOW_INFO(_window, buffer);
 210                         g_idle_add_full(G_PRIORITY_HIGH_IDLE, (GSourceFunc)map_download_idle_refresh, pui, NULL);
 211                         continue;
 212                 }
 213         } else if (--deletes_left) {
 214                 /* This is a delete. */
 215                 gchar buffer[BUFFER_SIZE];
 216                 g_tree_steal(pui_tree, pui);
 217                 g_tree_insert(downloading_tree, pui, pui);
 218
 219                 g_snprintf(buffer, sizeof(buffer), "%s/%u/%u/%u.jpg", pui->repo->cache_dir, pui->zoom, pui->tilex, pui->tiley);
 220                 g_unlink(buffer);
 221                 g_idle_add_full(G_PRIORITY_HIGH_IDLE,(GSourceFunc)map_download_idle_refresh, pui, NULL);
 222         } else
 223                 break;
 224 }
 225
 226 if (!(num_transfers || g_tree_nnodes(pui_tree))) {
 227         /* Destroy curl after 50 counts (5 seconds). */
 228         if (--destroy_counter) {
 229                 /* Clean up curl. */
 230                 CURL *curr;
 231                 while ((curr = g_queue_pop_tail(curl_easy_queue)))
 232                         curl_easy_cleanup(curr);
 233
 234                 _curl_sid = 0;
 235                 return FALSE;
 236         }
 237 } else
 238         destroy_counter = 50;
 239
 240 return TRUE;
 241 }
 242
 243 #ifdef MAP_DOWNLOAD_WMS
 244 /**
 245  * Given a wms uri pattern, compute the coordinate transformation and
 246  * trimming.
 247  * 'proj' is used for the conversion
 248  */
 249
 250 #define WMS_TILE_SIZE_PIXELS (256)
 251
 252 static gchar *
 253 map_convert_wms_to_wms(gint tilex, gint tiley, gint zoomlevel, gchar * uri)
 254 {
 255 gint system_retcode;
 256 gchar cmd[BUFFER_SIZE], srs[BUFFER_SIZE];
 257 gchar *ret = NULL;
 258 FILE *in;
 259 gdouble lon1, lat1, lon2, lat2;
 260
 261 gchar *widthstr = strcasestr(uri, "WIDTH=");
 262 gchar *heightstr = strcasestr(uri, "HEIGHT=");
 263 gchar *srsstr = strcasestr(uri, "SRS=EPSG");
 264 gchar *srsstre = strchr(srsstr, '&');
 265
 266 /* missing: test if found */
 267 strcpy(srs, "epsg");
 268 strncpy(srs + 4, srsstr + 8, 256);
 269 /* missing: test srsstre-srsstr < 526 */
 270 srs[srsstre - srsstr - 4] = 0;
 271 /* convert to lower, as WMC is EPSG and cs2cs is epsg */
 272
 273 gint dwidth = widthstr ? atoi(widthstr + 6) - WMS_TILE_SIZE_PIXELS : 0;
 274 gint dheight = heightstr ? atoi(heightstr + 7) - WMS_TILE_SIZE_PIXELS : 0;
 275
 276 unit2latlon(tile2zunit(tilex, zoomlevel) - pixel2zunit(dwidth / 2, zoomlevel),
 277             tile2zunit(tiley + 1, zoomlevel) + pixel2zunit((dheight + 1) / 2, zoomlevel), &lat1, &lon1);
 278
 279 unit2latlon(tile2zunit(tilex + 1, zoomlevel) + pixel2zunit((dwidth + 1) / 2, zoomlevel),
 280                 tile2zunit(tiley, zoomlevel) - pixel2zunit(dheight / 2, zoomlevel), &lat2, &lon2);
 281
 282 setlocale(LC_NUMERIC, "C");
 283
 284 g_snprintf(cmd, sizeof(cmd),
 285          "(echo \"%.6f %.6f\"; echo \"%.6f %.6f\") | "
 286          "/usr/bin/cs2cs +proj=longlat +datum=WGS84 +to +init=%s -f %%.6f "
 287          " > /tmp/tmpcs2cs ", lon1, lat1, lon2, lat2, srs);
 288 vprintf("Running command: %s\n", cmd);
 289 system_retcode = system(cmd);
 290
 291 if (system_retcode)
 292         g_printerr("cs2cs returned error code %d\n", WEXITSTATUS(system_retcode));
 293 else if (!(in = g_fopen("/tmp/tmpcs2cs", "r")))
 294         g_printerr("Cannot open results of conversion\n");
 295 else if (5 != fscanf(in, "%lf %lf %s %lf %lf", &lon1, &lat1, cmd, &lon2, &lat2)) {
 296         g_printerr("Wrong conversion\n");
 297         fclose(in);
 298 } else {
 299         fclose(in);
 300         ret = g_strdup_printf(uri, lon1, lat1, lon2, lat2);
 301 }
 302
 303 setlocale(LC_NUMERIC, "");
 304
 305 return ret;
 306 }
 307 #endif
 308
 309 /**
 310  * Given the xyz coordinates of our map coordinate system, write the qrst
 311  * quadtree coordinates to buffer.
 312  */
 313 static void
 314 map_convert_coords_to_quadtree_string(gint x, gint y, gint zoomlevel,
 315                                       gchar * buffer, const gchar initial,
 316                                       const gchar * const quadrant)
 317 {
 318 gchar *ptr = buffer;
 319 gint n;
 320
 321 if (initial)
 322         *ptr++ = initial;
 323
 324 for (n = 16 - zoomlevel; n >= 0; n--) {
 325         gint xbit = (x >> n) & 1;
 326         gint ybit = (y >> n) & 1;
 327         *ptr++ = quadrant[xbit + 2 * ybit];
 328 }
 329 *ptr++ = '\0';
 330 }
 331
 332 /**
 333  * Construct the URL that we should fetch, based on the current URI format.
 334  * This method works differently depending on if a "%s" string is present in
 335  * the URI format, since that would indicate a quadtree-based map coordinate
 336  * system.
 337  */
 338 static gchar *
 339 map_construct_url(guint tilex, guint tiley, guint zoom)
 340 {
 341 switch (_curr_repo->type) {
 342 case REPOTYPE_XYZ:
 343         return g_strdup_printf(_curr_repo->url, tilex, tiley, zoom);
 344 case REPOTYPE_XYZ_INV:
 345         return g_strdup_printf(_curr_repo->url, 17 - zoom, tilex, tiley);
 346 case REPOTYPE_QUAD_QRST: {
 347                 gchar location[32];
 348                 map_convert_coords_to_quadtree_string(tilex, tiley, zoom, location, 't', "qrts");
 349                 return g_strdup_printf(_curr_repo->url, location);
 350         }
 351 case REPOTYPE_QUAD_ZERO: {
 352                 /* This is a zero-based quadtree URI. */
 353                 gchar location[32];
 354                 map_convert_coords_to_quadtree_string(tilex, tiley, zoom, location, '\0', "0123");
 355                 return g_strdup_printf(_curr_repo->url, location);
 356         }
 357 #ifdef MAP_DOWNLOAD_WMD
 358 case REPOTYPE_WMS:
 359         return map_convert_wms_to_wms(tilex, tiley, zoom, _curr_repo->url);
 360 #endif
 361 default:
 362         return NULL;
 363 }
 364 return "";
 365 }
 366
 367 void
 368 map_download_progress_clear(void)
 369 {
 370 g_assert(_progress_item);
 371 gtk_progress_bar_set_fraction(_progress_item, 0.0);
 372 gtk_progress_bar_set_text(_progress_item, "");
 373 }
 374
 375 void
 376 map_download_progress_set(gint currd, gint numd)
 377 {
 378 gchar buffer[64];
 379
 380 g_assert(_progress_item);
 381 g_snprintf(buffer, sizeof(buffer), _("Downloading maps (%d/%d)"), currd, numd);
 382 gtk_progress_bar_set_text(_progress_item, buffer);
 383 gtk_progress_bar_set_fraction(_progress_item, currd/(double)numd);
 384 }
 385
 386 gboolean
 387 map_download_idle_refresh(ProgressUpdateInfo * pui)
 388 {
 389 guint tmp=0;
 390 /* Test if download succeeded (only if retries != 0). */
 391 if (!pui->retries || g_file_test(pui->dest_str, G_FILE_TEST_EXISTS)) {
 392         gint zoom_diff = pui->zoom - gtk_map_get_zoom(_map);
 393
 394 #if 0
 395         /* Only refresh at same or "lower" (more detailed) zoom level. */
 396         if (zoom_diff >= 0) {
 397                 guint tilex, tiley, tilex_end, tiley_end;
 398
 399                 /* If zoom has changed since we first put in the request for
 400                  * this tile, then we may have to update more than one tile. */
 401                 for (tilex = pui->tilex << zoom_diff, tilex_end = tilex + (1 << zoom_diff); tilex < tilex_end; tilex++) {
 402                         for (tiley = pui->tiley << zoom_diff, tiley_end = tiley + (1 << zoom_diff); tiley < tiley_end; tiley++) {
 403                                 tmp++;
 404                                 if (map_render_tile(tilex, tiley, ((tilex - _base_tilex) << TILE_SIZE_P2), ((tiley - _base_tiley) << TILE_SIZE_P2), TRUE)==TRUE) {
 405                                         map_render_data();
 406                                         gtk_widget_queue_draw_area(_map_widget,
 407                                              ((tilex - _base_tilex) << TILE_SIZE_P2) - _offsetx,
 408                                              ((tiley - _base_tiley) << TILE_SIZE_P2) - _offsety,
 409                                              TILE_SIZE_PIXELS, TILE_SIZE_PIXELS);
 410                                 }
 411                         }
 412                 }
 413         g_debug("*** MDIR LOOP: %u", tmp);
 414         }
 415 #else
 416         g_debug("XXX: Add cb or signal or something to inform map widget about fresh tile");
 417 #endif
 418 }
 419 /* Else the download failed. Update retries and maybe try again. */
 420 else {
 421         if (pui->retries > 0)
 422                 --pui->retries;
 423         else if (pui->retries < 0)
 424                 ++pui->retries;
 425
 426         if (pui->retries) {
 427                 /* removal automatically calls progress_update_info_free(). */
 428                 g_tree_steal(downloading_tree, pui);
 429                 g_tree_insert(pui_tree, pui, pui);
 430                 if (iap_is_connected() && !_curl_sid)
 431                         _curl_sid = g_timeout_add(100,(GSourceFunc)map_download_timeout, NULL);
 432                 /* Don't do anything else. */
 433                 return FALSE;
 434         } else {
 435                 /* No more retries left - something must be wrong. */
 436                 MACRO_BANNER_SHOW_INFO(_window, _("Error in download. Check internet connection and/or Map Repository URL Format."));
 437         }
 438 }
 439
 440 /* removal automatically calls progress_update_info_free(). */
 441 g_tree_remove(downloading_tree, pui);
 442
 443 if (++_curr_download == _num_downloads) {
 444         _num_downloads = _curr_download = 0;
 445         map_download_progress_clear();
 446 } else {
 447         map_download_progress_set(_curr_download, _num_downloads);
 448 }
 449 return FALSE;
 450 }
 451
 452 /**
 453  * Initiate a download of the given xyz coordinates using the given buffer
 454  * as the URL.  If the map already exists on disk, or if we are already
 455  * downloading the map, then this method does nothing.
 456  */
 457 void
 458 map_initiate_download(guint tilex, guint tiley, guint zoom, gint retries)
 459 {
 460 ProgressUpdateInfo *pui;
 461
 462 iap_connect();
 463
 464 pui = g_slice_new(ProgressUpdateInfo);
 465 pui->tilex = tilex;
 466 pui->tiley = tiley;
 467 pui->zoom = zoom;
 468 pui->priority = 1;
 469 if (!retries)
 470         pui->priority = -pui->priority; /* "Negative" makes them lowest pri. */
 471 pui->retries = retries;
 472 pui->repo = _curr_repo;
 473
 474 if (g_tree_lookup(pui_tree, pui) || g_tree_lookup(downloading_tree, pui)) {
 475         /* Already downloading. */
 476         g_slice_free(ProgressUpdateInfo, pui);
 477         return;
 478 }
 479 pui->src_str = NULL;
 480 pui->dest_str = NULL;
 481 pui->file = NULL;
 482
 483 g_tree_insert(pui_tree, pui, pui);
 484 if (iap_is_connected() && !_curl_sid)
 485         _curl_sid = g_timeout_add(100, (GSourceFunc) map_download_timeout, NULL);
 486
 487 if (!_num_downloads++)
 488         gtk_progress_bar_set_text(_progress_item, _("Downloading maps..."));
 489 }
 490
 491 void
 492 map_download_init(void)
 493 {
 494 curl_easy_queue = g_queue_new();
 495 pui_tree = g_tree_new_full((GCompareDataFunc)download_comparefunc, NULL, (GDestroyNotify) progress_update_info_free, NULL);
 496 downloading_tree = g_tree_new_full((GCompareDataFunc)download_comparefunc, NULL, (GDestroyNotify) progress_update_info_free, NULL);
 497 pui_by_easy = g_hash_table_new(g_direct_hash, g_direct_equal);
 498 _curl_multi = curl_multi_init();
 499 /* curl_multi_setopt(_curl_multi, CURLMOPT_PIPELINING, 1); */
 500 }
 501
 502 gboolean
 503 map_download_stop(void)
 504 {
 505 if (_curl_multi) {
 506         CURL *curr;
 507         CURLMsg *msg;
 508         gint num_msgs;
 509
 510         /* Clear the tree and create it again */
 511         if (pui_tree) {
 512                 g_tree_destroy(pui_tree);
 513                 pui_tree = g_tree_new_full((GCompareDataFunc)download_comparefunc, NULL, (GDestroyNotify) progress_update_info_free, NULL);
 514         }
 515
 516         /* Close all finished files. */
 517         while ((msg = curl_multi_info_read(_curl_multi, &num_msgs))) {
 518                 if (msg->msg == CURLMSG_DONE) {
 519                         /* This is a map download. */
 520                         ProgressUpdateInfo *pui = g_hash_table_lookup(pui_by_easy, msg->easy_handle);
 521                         g_queue_push_head(curl_easy_queue, msg->easy_handle);
 522                         g_hash_table_remove(pui_by_easy, msg->easy_handle);
 523                         if (pui->file)
 524                                 fclose(pui->file);
 525                         curl_multi_remove_handle(_curl_multi, msg->easy_handle);
 526                 }
 527         }
 528
 529         g_debug("Stopping downloads");
 530         while ((curr = g_queue_pop_tail(curl_easy_queue)))
 531                 curl_easy_cleanup(curr);
 532         return TRUE;
 533 }
 534 g_debug("No downloads to stop");
 535 return FALSE;
 536 }
 537
 538 /*
 539  * Clean up CURL and structures
 540  */
 541 void
 542 map_download_deinit(void)
 543 {
 544 if (_curl_multi) {
 545         CURL *curr;
 546         gint num_transfers;
 547
 548         /* Finish up all downloads. */
 549         while (CURLM_CALL_MULTI_PERFORM == curl_multi_perform(_curl_multi, &num_transfers) || num_transfers) {
 550                 g_debug("NT: %d", num_transfers);
 551         }
 552
 553         /* Stop all transfers and cleanup */
 554         map_download_stop();
 555
 556         if (pui_tree)
 557                 g_tree_destroy(pui_tree);
 558         if (downloading_tree)
 559                 g_tree_destroy(downloading_tree);
 560         if (pui_by_easy)
 561                 g_hash_table_destroy(pui_by_easy);
 562         if (curl_easy_queue)
 563                 g_queue_free(curl_easy_queue);
 564         curl_multi_cleanup(_curl_multi);
 565         _curl_multi = NULL;
 566 }
 567
 568 if (_curl_sid) {
 569     g_source_remove(_curl_sid);
 570     _curl_sid = 0;
 571 }
 572 }