src/mpdclient.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2009 The Music Player Daemon Project
   3  * Project homepage: http://musicpd.org
   4
   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; either version 2 of the License, or
   8  * (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "mpdclient.h"
  21 #include "screen_utils.h"
  22 #include "config.h"
  23 #include "options.h"
  24 #include "strfsong.h"
  25 #include "utils.h"
  26
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <time.h>
  30 #include <string.h>
  31
  32 #undef  ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_ADD /* broken with song id's */
  33 #define ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_DELETE
  34 #define ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_MOVE
  35 #define ENABLE_SONG_ID
  36 #define ENABLE_PLCHANGES
  37
  38 #define BUFSIZE 1024
  39
  40 static bool
  41 MPD_ERROR(const struct mpdclient *client)
  42 {
  43         return client == NULL || client->connection==NULL ||
  44                 client->connection->error != MPD_ERROR_SUCCESS;
  45 }
  46
  47 /* filelist sorting functions */
  48 static gint
  49 compare_filelistentry(gconstpointer filelist_entry1,
  50                           gconstpointer filelist_entry2)
  51 {
  52         const mpd_InfoEntity *e1, *e2;
  53         int n = 0;
  54
  55         e1 = ((const filelist_entry_t *)filelist_entry1)->entity;
  56         e2 = ((const filelist_entry_t *)filelist_entry2)->entity;
  57
  58         if (e1 && e2 && e1->type == e2->type) {
  59                 switch (e1->type) {
  60                 case MPD_INFO_ENTITY_TYPE_DIRECTORY:
  61                         n = g_utf8_collate(e1->info.directory->path,
  62                                         e2->info.directory->path);
  63                         break;
  64                 case MPD_INFO_ENTITY_TYPE_SONG:
  65                         break;
  66                 case MPD_INFO_ENTITY_TYPE_PLAYLISTFILE:
  67                         n = g_utf8_collate(e1->info.playlistFile->path,
  68                                         e2->info.playlistFile->path);
  69                 }
  70         }
  71         return n;
  72 }
  73
  74 /* sort by list-format */
  75 gint
  76 compare_filelistentry_format(gconstpointer filelist_entry1,
  77                              gconstpointer filelist_entry2)
  78 {
  79         const mpd_InfoEntity *e1, *e2;
  80         char key1[BUFSIZE], key2[BUFSIZE];
  81         int n = 0;
  82
  83         e1 = ((const filelist_entry_t *)filelist_entry1)->entity;
  84         e2 = ((const filelist_entry_t *)filelist_entry2)->entity;
  85
  86         if (e1 && e2 &&
  87             e1->type == MPD_INFO_ENTITY_TYPE_SONG &&
  88             e2->type == MPD_INFO_ENTITY_TYPE_SONG) {
  89                 strfsong(key1, BUFSIZE, options.list_format, e1->info.song);
  90                 strfsong(key2, BUFSIZE, options.list_format, e2->info.song);
  91                 n = strcmp(key1,key2);
  92         }
  93
  94         return n;
  95 }
  96
  97
  98 /* Error callbacks */
  99 static gint
 100 error_cb(mpdclient_t *c, gint error, const gchar *msg)
 101 {
 102         GList *list = c->error_callbacks;
 103
 104         if (list == NULL)
 105                 fprintf(stderr, "error [%d]: %s\n", (error & 0xFF), msg);
 106
 107         while (list) {
 108                 mpdc_error_cb_t cb = list->data;
 109                 if (cb)
 110                         cb(c, error, msg);
 111                 list = list->next;
 112         }
 113
 114         mpd_clearError(c->connection);
 115         return error;
 116 }
 117
 118
 119 /****************************************************************************/
 120 /*** mpdclient functions ****************************************************/
 121 /****************************************************************************/
 122
 123 gint
 124 mpdclient_finish_command(mpdclient_t *c)
 125 {
 126         mpd_finishCommand(c->connection);
 127
 128         if (c->connection->error) {
 129                 gint error = c->connection->error;
 130
 131                 if (error == MPD_ERROR_ACK &&
 132                     c->connection->errorCode == MPD_ACK_ERROR_PERMISSION &&
 133                     screen_auth(c) == 0)
 134                         return 0;
 135
 136                 if (error == MPD_ERROR_ACK)
 137                         error = error | (c->connection->errorCode << 8);
 138
 139                 error_cb(c, error, c->connection->errorStr);
 140                 return error;
 141         }
 142
 143         return 0;
 144 }
 145
 146 mpdclient_t *
 147 mpdclient_new(void)
 148 {
 149         mpdclient_t *c;
 150
 151         c = g_malloc0(sizeof(mpdclient_t));
 152         playlist_init(&c->playlist);
 153
 154         return c;
 155 }
 156
 157 void
 158 mpdclient_free(mpdclient_t *c)
 159 {
 160         mpdclient_disconnect(c);
 161
 162         mpdclient_playlist_free(&c->playlist);
 163
 164         g_list_free(c->error_callbacks);
 165         g_list_free(c->playlist_callbacks);
 166         g_list_free(c->browse_callbacks);
 167         g_free(c);
 168 }
 169
 170 gint
 171 mpdclient_disconnect(mpdclient_t *c)
 172 {
 173         if (c->connection)
 174                 mpd_closeConnection(c->connection);
 175         c->connection = NULL;
 176
 177         if (c->status)
 178                 mpd_freeStatus(c->status);
 179         c->status = NULL;
 180
 181         playlist_clear(&c->playlist);
 182
 183         if (c->song)
 184                 c->song = NULL;
 185
 186         return 0;
 187 }
 188
 189 gint
 190 mpdclient_connect(mpdclient_t *c,
 191                   gchar *host,
 192                   gint port,
 193                   gfloat _timeout,
 194                   gchar *password)
 195 {
 196         gint retval = 0;
 197
 198         /* close any open connection */
 199         if( c->connection )
 200                 mpdclient_disconnect(c);
 201
 202         /* connect to MPD */
 203         c->connection = mpd_newConnection(host, port, _timeout);
 204         if( c->connection->error )
 205                 return error_cb(c, c->connection->error,
 206                                 c->connection->errorStr);
 207
 208         /* send password */
 209         if( password ) {
 210                 mpd_sendPasswordCommand(c->connection, password);
 211                 retval = mpdclient_finish_command(c);
 212         }
 213         c->need_update = TRUE;
 214
 215         return retval;
 216 }
 217
 218 gint
 219 mpdclient_update(mpdclient_t *c)
 220 {
 221         gint retval = 0;
 222
 223         if (MPD_ERROR(c))
 224                 return -1;
 225
 226         /* free the old status */
 227         if (c->status)
 228                 mpd_freeStatus(c->status);
 229
 230         /* retrieve new status */
 231         mpd_sendStatusCommand(c->connection);
 232         c->status = mpd_getStatus(c->connection);
 233         if ((retval=mpdclient_finish_command(c)))
 234                 return retval;
 235
 236         if (c->updatingdb && c->updatingdb != c->status->updatingDb)
 237                 mpdclient_browse_callback(c, BROWSE_DB_UPDATED, NULL);
 238
 239         c->updatingdb = c->status->updatingDb;
 240
 241         /* check if the playlist needs an update */
 242         if (c->playlist.id != c->status->playlist) {
 243                 if (playlist_is_empty(&c->playlist))
 244                         retval = mpdclient_playlist_update_changes(c);
 245                 else
 246                         retval = mpdclient_playlist_update(c);
 247         }
 248
 249         /* update the current song */
 250         if (!c->song || c->status->songid != c->song->id) {
 251                 c->song = playlist_get_song(c, c->status->song);
 252         }
 253
 254         c->need_update = FALSE;
 255
 256         return retval;
 257 }
 258
 259
 260 /****************************************************************************/
 261 /*** MPD Commands  **********************************************************/
 262 /****************************************************************************/
 263
 264 gint
 265 mpdclient_cmd_play(mpdclient_t *c, gint idx)
 266 {
 267 #ifdef ENABLE_SONG_ID
 268         struct mpd_song *song = playlist_get_song(c, idx);
 269
 270         if (song)
 271                 mpd_sendPlayIdCommand(c->connection, song->id);
 272         else
 273                 mpd_sendPlayIdCommand(c->connection, MPD_PLAY_AT_BEGINNING);
 274 #else
 275         mpd_sendPlayCommand(c->connection, idx);
 276 #endif
 277         c->need_update = TRUE;
 278         return mpdclient_finish_command(c);
 279 }
 280
 281 gint
 282 mpdclient_cmd_pause(mpdclient_t *c, gint value)
 283 {
 284         mpd_sendPauseCommand(c->connection, value);
 285         return mpdclient_finish_command(c);
 286 }
 287
 288 gint
 289 mpdclient_cmd_crop(mpdclient_t *c)
 290 {
 291         gint error;
 292         mpd_Status *status;
 293         bool playing;
 294         int length, current;
 295
 296         mpd_sendStatusCommand(c->connection);
 297         status = mpd_getStatus(c->connection);
 298         error = mpdclient_finish_command(c);
 299         if (error)
 300                 return error;
 301
 302         playing = status->state == MPD_STATUS_STATE_PLAY ||
 303                 status->state == MPD_STATUS_STATE_PAUSE;
 304         length = status->playlistLength;
 305         current = status->song;
 306
 307         mpd_freeStatus(status);
 308
 309         if (!playing || length < 2)
 310                 return 0;
 311
 312         mpd_sendCommandListBegin( c->connection );
 313
 314         while (--length >= 0)
 315                 if (length != current)
 316                         mpd_sendDeleteCommand(c->connection, length);
 317
 318         mpd_sendCommandListEnd(c->connection);
 319
 320         return mpdclient_finish_command(c);
 321 }
 322
 323 gint
 324 mpdclient_cmd_stop(mpdclient_t *c)
 325 {
 326         mpd_sendStopCommand(c->connection);
 327         return mpdclient_finish_command(c);
 328 }
 329
 330 gint
 331 mpdclient_cmd_next(mpdclient_t *c)
 332 {
 333         mpd_sendNextCommand(c->connection);
 334         c->need_update = TRUE;
 335         return mpdclient_finish_command(c);
 336 }
 337
 338 gint
 339 mpdclient_cmd_prev(mpdclient_t *c)
 340 {
 341         mpd_sendPrevCommand(c->connection);
 342         c->need_update = TRUE;
 343         return mpdclient_finish_command(c);
 344 }
 345
 346 gint
 347 mpdclient_cmd_seek(mpdclient_t *c, gint id, gint pos)
 348 {
 349         mpd_sendSeekIdCommand(c->connection, id, pos);
 350         return mpdclient_finish_command(c);
 351 }
 352
 353 gint
 354 mpdclient_cmd_shuffle(mpdclient_t *c)
 355 {
 356         mpd_sendShuffleCommand(c->connection);
 357         c->need_update = TRUE;
 358         return mpdclient_finish_command(c);
 359 }
 360
 361 gint
 362 mpdclient_cmd_shuffle_range(mpdclient_t *c, guint start, guint end)
 363 {
 364         mpd_sendShuffleRangeCommand(c->connection, start, end);
 365         c->need_update = TRUE;
 366         return mpdclient_finish_command(c);
 367 }
 368
 369 gint
 370 mpdclient_cmd_clear(mpdclient_t *c)
 371 {
 372         gint retval = 0;
 373
 374         mpd_sendClearCommand(c->connection);
 375         retval = mpdclient_finish_command(c);
 376         /* call playlist updated callback */
 377         mpdclient_playlist_callback(c, PLAYLIST_EVENT_CLEAR, NULL);
 378         c->need_update = TRUE;
 379         return retval;
 380 }
 381
 382 gint
 383 mpdclient_cmd_repeat(mpdclient_t *c, gint value)
 384 {
 385         mpd_sendRepeatCommand(c->connection, value);
 386         return mpdclient_finish_command(c);
 387 }
 388
 389 gint
 390 mpdclient_cmd_random(mpdclient_t *c, gint value)
 391 {
 392         mpd_sendRandomCommand(c->connection, value);
 393         return mpdclient_finish_command(c);
 394 }
 395
 396 gint
 397 mpdclient_cmd_single(mpdclient_t *c, gint value)
 398 {
 399         mpd_sendSingleCommand(c->connection, value);
 400         return mpdclient_finish_command(c);
 401 }
 402
 403 gint
 404 mpdclient_cmd_consume(mpdclient_t *c, gint value)
 405 {
 406         mpd_sendConsumeCommand(c->connection, value);
 407         return mpdclient_finish_command(c);
 408 }
 409
 410 gint
 411 mpdclient_cmd_crossfade(mpdclient_t *c, gint value)
 412 {
 413         mpd_sendCrossfadeCommand(c->connection, value);
 414         return mpdclient_finish_command(c);
 415 }
 416
 417 gint
 418 mpdclient_cmd_db_update(mpdclient_t *c, gchar *path)
 419 {
 420         gint ret;
 421
 422         mpd_sendUpdateCommand(c->connection, path ? path : "");
 423         ret = mpdclient_finish_command(c);
 424
 425         if (ret == 0)
 426                 /* set updatingDb to make sure the browse callback
 427                    gets called even if the update has finished before
 428                    status is updated */
 429                 c->updatingdb = 1;
 430
 431         return ret;
 432 }
 433
 434 gint
 435 mpdclient_cmd_volume(mpdclient_t *c, gint value)
 436 {
 437         mpd_sendSetvolCommand(c->connection, value);
 438         return mpdclient_finish_command(c);
 439 }
 440
 441 gint
 442 mpdclient_cmd_add_path(mpdclient_t *c, gchar *path_utf8)
 443 {
 444         mpd_sendAddCommand(c->connection, path_utf8);
 445         return mpdclient_finish_command(c);
 446 }
 447
 448 gint
 449 mpdclient_cmd_add(mpdclient_t *c, struct mpd_song *song)
 450 {
 451         gint retval = 0;
 452
 453         if( !song || !song->file )
 454                 return -1;
 455
 456         /* send the add command to mpd */
 457         mpd_sendAddCommand(c->connection, song->file);
 458         if( (retval=mpdclient_finish_command(c)) )
 459                 return retval;
 460
 461 #ifdef ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_ADD
 462         /* add the song to playlist */
 463         playlist_append(&c->playlist, song);
 464
 465         /* increment the playlist id, so we don't retrieve a new playlist */
 466         c->playlist.id++;
 467
 468         /* call playlist updated callback */
 469         mpdclient_playlist_callback(c, PLAYLIST_EVENT_ADD, (gpointer) song);
 470 #else
 471         c->need_update = TRUE;
 472 #endif
 473
 474         return 0;
 475 }
 476
 477 gint
 478 mpdclient_cmd_delete(mpdclient_t *c, gint idx)
 479 {
 480         gint retval = 0;
 481         struct mpd_song *song;
 482
 483         if (idx < 0 || (guint)idx >= playlist_length(&c->playlist))
 484                 return -1;
 485
 486         song = playlist_get(&c->playlist, idx);
 487
 488         /* send the delete command to mpd */
 489 #ifdef ENABLE_SONG_ID
 490         mpd_sendDeleteIdCommand(c->connection, song->id);
 491 #else
 492         mpd_sendDeleteCommand(c->connection, idx);
 493 #endif
 494         if( (retval=mpdclient_finish_command(c)) )
 495                 return retval;
 496
 497 #ifdef ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_DELETE
 498         /* increment the playlist id, so we don't retrieve a new playlist */
 499         c->playlist.id++;
 500
 501         /* remove the song from the playlist */
 502         playlist_remove_reuse(&c->playlist, idx);
 503
 504         /* call playlist updated callback */
 505         mpdclient_playlist_callback(c, PLAYLIST_EVENT_DELETE, (gpointer) song);
 506
 507         /* remove references to the song */
 508         if (c->song == song) {
 509                 c->song = NULL;
 510                 c->need_update = TRUE;
 511         }
 512
 513         mpd_freeSong(song);
 514
 515 #else
 516         c->need_update = TRUE;
 517 #endif
 518
 519         return 0;
 520 }
 521
 522 gint
 523 mpdclient_cmd_move(mpdclient_t *c, gint old_index, gint new_index)
 524 {
 525         gint n;
 526         struct mpd_song *song1, *song2;
 527
 528         if (old_index == new_index || new_index < 0 ||
 529             (guint)new_index >= c->playlist.list->len)
 530                 return -1;
 531
 532         song1 = playlist_get(&c->playlist, old_index);
 533         song2 = playlist_get(&c->playlist, new_index);
 534
 535         /* send the move command to mpd */
 536 #ifdef ENABLE_SONG_ID
 537         mpd_sendSwapIdCommand(c->connection, song1->id, song2->id);
 538 #else
 539         mpd_sendMoveCommand(c->connection, old_index, new_index);
 540 #endif
 541         if( (n=mpdclient_finish_command(c)) )
 542                 return n;
 543
 544 #ifdef ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_MOVE
 545         /* update the playlist */
 546         playlist_swap(&c->playlist, old_index, new_index);
 547
 548         /* increment the playlist id, so we don't retrieve a new playlist */
 549         c->playlist.id++;
 550
 551 #else
 552         c->need_update = TRUE;
 553 #endif
 554
 555         /* call playlist updated callback */
 556         mpdclient_playlist_callback(c, PLAYLIST_EVENT_MOVE, (gpointer) &new_index);
 557
 558         return 0;
 559 }
 560
 561 gint
 562 mpdclient_cmd_save_playlist(mpdclient_t *c, gchar *filename_utf8)
 563 {
 564         gint retval = 0;
 565
 566         mpd_sendSaveCommand(c->connection, filename_utf8);
 567         if ((retval = mpdclient_finish_command(c)) == 0)
 568                 mpdclient_browse_callback(c, BROWSE_PLAYLIST_SAVED, NULL);
 569         return retval;
 570 }
 571
 572 gint
 573 mpdclient_cmd_load_playlist(mpdclient_t *c, gchar *filename_utf8)
 574 {
 575         mpd_sendLoadCommand(c->connection, filename_utf8);
 576         c->need_update = TRUE;
 577         return mpdclient_finish_command(c);
 578 }
 579
 580 gint
 581 mpdclient_cmd_delete_playlist(mpdclient_t *c, gchar *filename_utf8)
 582 {
 583         gint retval = 0;
 584
 585         mpd_sendRmCommand(c->connection, filename_utf8);
 586         if ((retval = mpdclient_finish_command(c)) == 0)
 587                 mpdclient_browse_callback(c, BROWSE_PLAYLIST_DELETED, NULL);
 588         return retval;
 589 }
 590
 591
 592 /****************************************************************************/
 593 /*** Callback management functions ******************************************/
 594 /****************************************************************************/
 595
 596 static void
 597 do_list_callbacks(mpdclient_t *c, GList *list, gint event, gpointer data)
 598 {
 599         while (list) {
 600                 mpdc_list_cb_t fn = list->data;
 601
 602                 fn(c, event, data);
 603                 list = list->next;
 604         }
 605 }
 606
 607 void
 608 mpdclient_playlist_callback(mpdclient_t *c, int event, gpointer data)
 609 {
 610         do_list_callbacks(c, c->playlist_callbacks, event, data);
 611 }
 612
 613 void
 614 mpdclient_install_playlist_callback(mpdclient_t *c,mpdc_list_cb_t cb)
 615 {
 616         c->playlist_callbacks = g_list_append(c->playlist_callbacks, cb);
 617 }
 618
 619 void
 620 mpdclient_remove_playlist_callback(mpdclient_t *c, mpdc_list_cb_t cb)
 621 {
 622         c->playlist_callbacks = g_list_remove(c->playlist_callbacks, cb);
 623 }
 624
 625 void
 626 mpdclient_browse_callback(mpdclient_t *c, int event, gpointer data)
 627 {
 628         do_list_callbacks(c, c->browse_callbacks, event, data);
 629 }
 630
 631
 632 void
 633 mpdclient_install_browse_callback(mpdclient_t *c,mpdc_list_cb_t cb)
 634 {
 635         c->browse_callbacks = g_list_append(c->browse_callbacks, cb);
 636 }
 637
 638 void
 639 mpdclient_remove_browse_callback(mpdclient_t *c, mpdc_list_cb_t cb)
 640 {
 641         c->browse_callbacks = g_list_remove(c->browse_callbacks, cb);
 642 }
 643
 644 void
 645 mpdclient_install_error_callback(mpdclient_t *c, mpdc_error_cb_t cb)
 646 {
 647         c->error_callbacks = g_list_append(c->error_callbacks, cb);
 648 }
 649
 650 void
 651 mpdclient_remove_error_callback(mpdclient_t *c, mpdc_error_cb_t cb)
 652 {
 653         c->error_callbacks = g_list_remove(c->error_callbacks, cb);
 654 }
 655
 656
 657 /****************************************************************************/
 658 /*** Playlist management functions ******************************************/
 659 /****************************************************************************/
 660
 661 /* update playlist */
 662 gint
 663 mpdclient_playlist_update(mpdclient_t *c)
 664 {
 665         mpd_InfoEntity *entity;
 666
 667         if (MPD_ERROR(c))
 668                 return -1;
 669
 670         playlist_clear(&c->playlist);
 671
 672         mpd_sendPlaylistInfoCommand(c->connection,-1);
 673         while ((entity = mpd_getNextInfoEntity(c->connection))) {
 674                 if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
 675                         playlist_append(&c->playlist, entity->info.song);
 676
 677                 mpd_freeInfoEntity(entity);
 678         }
 679
 680         c->playlist.id = c->status->playlist;
 681         c->song = NULL;
 682
 683         /* call playlist updated callbacks */
 684         mpdclient_playlist_callback(c, PLAYLIST_EVENT_UPDATED, NULL);
 685
 686         return mpdclient_finish_command(c);
 687 }
 688
 689 #ifdef ENABLE_PLCHANGES
 690
 691 /* update playlist (plchanges) */
 692 gint
 693 mpdclient_playlist_update_changes(mpdclient_t *c)
 694 {
 695         mpd_InfoEntity *entity;
 696
 697         if (MPD_ERROR(c))
 698                 return -1;
 699
 700         mpd_sendPlChangesCommand(c->connection, c->playlist.id);
 701
 702         while ((entity = mpd_getNextInfoEntity(c->connection)) != NULL) {
 703                 struct mpd_song *song = entity->info.song;
 704
 705                 if (song->pos >= 0 && (guint)song->pos < c->playlist.list->len) {
 706                         /* update song */
 707                         playlist_replace(&c->playlist, song->pos, song);
 708                 } else {
 709                         /* add a new song */
 710                         playlist_append(&c->playlist, song);
 711                 }
 712
 713                 mpd_freeInfoEntity(entity);
 714         }
 715
 716         /* remove trailing songs */
 717         while ((guint)c->status->playlistLength < c->playlist.list->len) {
 718                 guint pos = c->playlist.list->len - 1;
 719
 720                 /* Remove the last playlist entry */
 721                 playlist_remove(&c->playlist, pos);
 722         }
 723
 724         c->song = NULL;
 725         c->playlist.id = c->status->playlist;
 726
 727         mpdclient_playlist_callback(c, PLAYLIST_EVENT_UPDATED, NULL);
 728
 729         return 0;
 730 }
 731
 732 #else
 733 gint
 734 mpdclient_playlist_update_changes(mpdclient_t *c)
 735 {
 736         return mpdclient_playlist_update(c);
 737 }
 738 #endif
 739
 740
 741 /****************************************************************************/
 742 /*** Filelist functions *****************************************************/
 743 /****************************************************************************/
 744
 745 mpdclient_filelist_t *
 746 mpdclient_filelist_get(mpdclient_t *c, const gchar *path)
 747 {
 748         mpdclient_filelist_t *filelist;
 749         mpd_InfoEntity *entity;
 750
 751         mpd_sendLsInfoCommand(c->connection, path);
 752         filelist = filelist_new(path);
 753         if (path && path[0] && strcmp(path, "/"))
 754                 /* add a dummy entry for ./.. */
 755                 filelist_append(filelist, NULL);
 756
 757         while ((entity=mpd_getNextInfoEntity(c->connection))) {
 758                 filelist_append(filelist, entity);
 759         }
 760
 761         /* If there's an error, ignore it.  We'll return an empty filelist. */
 762         mpdclient_finish_command(c);
 763
 764         filelist_sort_dir_play(filelist, compare_filelistentry);
 765
 766         return filelist;
 767 }
 768
 769 mpdclient_filelist_t *
 770 mpdclient_filelist_search(mpdclient_t *c,
 771                           int exact_match,
 772                           int table,
 773                           gchar *filter_utf8)
 774 {
 775         mpdclient_filelist_t *filelist;
 776         mpd_InfoEntity *entity;
 777
 778         if (exact_match)
 779                 mpd_sendFindCommand(c->connection, table, filter_utf8);
 780         else
 781                 mpd_sendSearchCommand(c->connection, table, filter_utf8);
 782         filelist = filelist_new(NULL);
 783
 784         while ((entity=mpd_getNextInfoEntity(c->connection)))
 785                 filelist_append(filelist, entity);
 786
 787         if (mpdclient_finish_command(c)) {
 788                 filelist_free(filelist);
 789                 return NULL;
 790         }
 791
 792         return filelist;
 793 }
 794
 795 mpdclient_filelist_t *
 796 mpdclient_filelist_update(mpdclient_t *c, mpdclient_filelist_t *filelist)
 797 {
 798         if (filelist != NULL) {
 799                 gchar *path = g_strdup(filelist->path);
 800
 801                 filelist_free(filelist);
 802                 filelist = mpdclient_filelist_get(c, path);
 803                 g_free(path);
 804                 return filelist;
 805         }
 806         return NULL;
 807 }
 808
 809 int
 810 mpdclient_filelist_add_all(mpdclient_t *c, mpdclient_filelist_t *fl)
 811 {
 812         guint i;
 813
 814         if (filelist_is_empty(fl))
 815                 return 0;
 816
 817         mpd_sendCommandListBegin(c->connection);
 818
 819         for (i = 0; i < filelist_length(fl); ++i) {
 820                 filelist_entry_t *entry = filelist_get(fl, i);
 821                 mpd_InfoEntity *entity  = entry->entity;
 822
 823                 if (entity && entity->type == MPD_INFO_ENTITY_TYPE_SONG) {
 824                         struct mpd_song *song = entity->info.song;
 825
 826                         mpd_sendAddCommand(c->connection, song->file);
 827                 }
 828         }
 829
 830         mpd_sendCommandListEnd(c->connection);
 831         return mpdclient_finish_command(c);
 832 }
 833
 834 GList *
 835 mpdclient_get_artists(mpdclient_t *c)
 836 {
 837         gchar *str = NULL;
 838         GList *list = NULL;
 839
 840         mpd_sendListCommand(c->connection, MPD_TABLE_ARTIST, NULL);
 841         while ((str = mpd_getNextArtist(c->connection)))
 842                 list = g_list_append(list, (gpointer) str);
 843
 844         if (mpdclient_finish_command(c))
 845                 return string_list_free(list);
 846
 847         return list;
 848 }
 849
 850 GList *
 851 mpdclient_get_albums(mpdclient_t *c, gchar *artist_utf8)
 852 {
 853         gchar *str = NULL;
 854         GList *list = NULL;
 855
 856         mpd_sendListCommand(c->connection, MPD_TABLE_ALBUM, artist_utf8);
 857         while ((str = mpd_getNextAlbum(c->connection)))
 858                 list = g_list_append(list, (gpointer) str);
 859
 860         if (mpdclient_finish_command(c))
 861                 return string_list_free(list);
 862
 863         return list;
 864 }