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