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 "filelist.h"
  22 #include "screen_client.h"
  23 #include "config.h"
  24 #include "options.h"
  25 #include "strfsong.h"
  26 #include "utils.h"
  27 #include "gidle.h"
  28
  29 #include <mpd/client.h>
  30
  31 #include <stdlib.h>
  32 #include <unistd.h>
  33 #include <time.h>
  34 #include <string.h>
  35
  36 #define BUFSIZE 1024
  37
  38 /* sort by list-format */
  39 gint
  40 compare_filelistentry_format(gconstpointer filelist_entry1,
  41                              gconstpointer filelist_entry2)
  42 {
  43         const struct mpd_entity *e1, *e2;
  44         char key1[BUFSIZE], key2[BUFSIZE];
  45         int n = 0;
  46
  47         e1 = ((const struct filelist_entry *)filelist_entry1)->entity;
  48         e2 = ((const struct filelist_entry *)filelist_entry2)->entity;
  49
  50         if (e1 && e2 &&
  51             mpd_entity_get_type(e1) == MPD_ENTITY_TYPE_SONG &&
  52             mpd_entity_get_type(e2) == MPD_ENTITY_TYPE_SONG) {
  53                 strfsong(key1, BUFSIZE, options.list_format, mpd_entity_get_song(e1));
  54                 strfsong(key2, BUFSIZE, options.list_format, mpd_entity_get_song(e2));
  55                 n = strcmp(key1,key2);
  56         }
  57
  58         return n;
  59 }
  60
  61
  62 /****************************************************************************/
  63 /*** mpdclient functions ****************************************************/
  64 /****************************************************************************/
  65
  66 bool
  67 mpdclient_handle_error(struct mpdclient *c)
  68 {
  69         enum mpd_error error = mpd_connection_get_error(c->connection);
  70
  71         assert(error != MPD_ERROR_SUCCESS);
  72
  73         if (error == MPD_ERROR_SERVER &&
  74             mpd_connection_get_server_error(c->connection) == MPD_SERVER_ERROR_PERMISSION &&
  75             screen_auth(c))
  76                 return true;
  77
  78         mpdclient_ui_error(mpd_connection_get_error_message(c->connection));
  79
  80         if (!mpd_connection_clear_error(c->connection))
  81                 mpdclient_disconnect(c);
  82
  83         return false;
  84 }
  85
  86 static bool
  87 mpdclient_finish_command(struct mpdclient *c)
  88 {
  89         return mpd_response_finish(c->connection)
  90                 ? true : mpdclient_handle_error(c);
  91 }
  92
  93 struct mpdclient *
  94 mpdclient_new(void)
  95 {
  96         struct mpdclient *c;
  97
  98         c = g_new0(struct mpdclient, 1);
  99         playlist_init(&c->playlist);
 100         c->volume = -1;
 101         c->events = 0;
 102
 103         return c;
 104 }
 105
 106 void
 107 mpdclient_free(struct mpdclient *c)
 108 {
 109         mpdclient_disconnect(c);
 110
 111         mpdclient_playlist_free(&c->playlist);
 112
 113         g_free(c);
 114 }
 115
 116 void
 117 mpdclient_disconnect(struct mpdclient *c)
 118 {
 119         if (c->source != NULL) {
 120                 mpd_glib_free(c->source);
 121                 c->source = NULL;
 122                 c->idle = false;
 123         }
 124
 125         if (c->connection)
 126                 mpd_connection_free(c->connection);
 127         c->connection = NULL;
 128
 129         if (c->status)
 130                 mpd_status_free(c->status);
 131         c->status = NULL;
 132
 133         playlist_clear(&c->playlist);
 134
 135         if (c->song)
 136                 c->song = NULL;
 137
 138         /* everything has changed after a disconnect */
 139         c->events |= MPD_IDLE_DATABASE|MPD_IDLE_STORED_PLAYLIST|
 140                 MPD_IDLE_QUEUE|MPD_IDLE_PLAYER|MPD_IDLE_MIXER|MPD_IDLE_OUTPUT|
 141                 MPD_IDLE_OPTIONS|MPD_IDLE_UPDATE;
 142 }
 143
 144 bool
 145 mpdclient_connect(struct mpdclient *c,
 146                   const gchar *host,
 147                   gint port,
 148                   gfloat _timeout,
 149                   const gchar *password)
 150 {
 151         /* close any open connection */
 152         if( c->connection )
 153                 mpdclient_disconnect(c);
 154
 155         /* connect to MPD */
 156         c->connection = mpd_connection_new(host, port, _timeout * 1000);
 157         if (c->connection == NULL)
 158                 g_error("Out of memory");
 159
 160         if (mpd_connection_get_error(c->connection) != MPD_ERROR_SUCCESS) {
 161                 mpdclient_handle_error(c);
 162                 mpdclient_disconnect(c);
 163                 return false;
 164         }
 165
 166         /* send password */
 167         if (password != NULL && !mpd_run_password(c->connection, password)) {
 168                 mpdclient_handle_error(c);
 169                 mpdclient_disconnect(c);
 170                 return false;
 171         }
 172
 173         return true;
 174 }
 175
 176 bool
 177 mpdclient_update(struct mpdclient *c)
 178 {
 179         struct mpd_connection *connection = mpdclient_get_connection(c);
 180         bool retval;
 181
 182         c->volume = -1;
 183
 184         if (connection == NULL)
 185                 return false;
 186
 187         /* always announce these options as long as we don't have
 188            "idle" support */
 189         if (c->source == NULL)
 190                 c->events |= MPD_IDLE_PLAYER|MPD_IDLE_OPTIONS;
 191
 192         /* free the old status */
 193         if (c->status)
 194                 mpd_status_free(c->status);
 195
 196         /* retrieve new status */
 197         c->status = mpd_run_status(connection);
 198         if (c->status == NULL)
 199                 return mpdclient_handle_error(c);
 200
 201         if (c->source == NULL &&
 202             c->update_id != mpd_status_get_update_id(c->status)) {
 203                 c->events |= MPD_IDLE_UPDATE;
 204
 205                 if (c->update_id > 0)
 206                         c->events |= MPD_IDLE_DATABASE;
 207         }
 208
 209         c->update_id = mpd_status_get_update_id(c->status);
 210
 211         if (c->source == NULL &&
 212             c->volume != mpd_status_get_volume(c->status))
 213                 c->events |= MPD_IDLE_MIXER;
 214
 215         c->volume = mpd_status_get_volume(c->status);
 216
 217         /* check if the playlist needs an update */
 218         if (c->playlist.version != mpd_status_get_queue_version(c->status)) {
 219                 if (c->source == NULL)
 220                         c->events |= MPD_IDLE_PLAYLIST;
 221
 222                 if (!playlist_is_empty(&c->playlist))
 223                         retval = mpdclient_playlist_update_changes(c);
 224                 else
 225                         retval = mpdclient_playlist_update(c);
 226         } else
 227                 retval = true;
 228
 229         /* update the current song */
 230         if (!c->song || mpd_status_get_song_id(c->status)) {
 231                 c->song = playlist_get_song(&c->playlist,
 232                                             mpd_status_get_song_pos(c->status));
 233         }
 234
 235         return retval;
 236 }
 237
 238 struct mpd_connection *
 239 mpdclient_get_connection(struct mpdclient *c)
 240 {
 241         if (c->source != NULL && c->idle) {
 242                 c->idle = false;
 243                 mpd_glib_leave(c->source);
 244         }
 245
 246         return c->connection;
 247 }
 248
 249 void
 250 mpdclient_put_connection(struct mpdclient *c)
 251 {
 252         assert(c->source == NULL || c->connection != NULL);
 253
 254         if (c->source != NULL && !c->idle) {
 255                 c->idle = mpd_glib_enter(c->source);
 256         }
 257 }
 258
 259
 260 /****************************************************************************/
 261 /*** MPD Commands  **********************************************************/
 262 /****************************************************************************/
 263
 264 bool
 265 mpdclient_cmd_crop(struct mpdclient *c)
 266 {
 267         struct mpd_connection *connection;
 268         int length, current;
 269
 270         if (c->status == NULL)
 271                 return false;
 272
 273         length = mpd_status_get_queue_length(c->status);
 274         current = mpd_status_get_song_pos(c->status);
 275         if (current < 0 ||
 276             (mpd_status_get_state(c->status) != MPD_STATE_PLAY &&
 277              mpd_status_get_state(c->status) != MPD_STATE_PAUSE) ||
 278             mpd_status_get_queue_length(c->status) < 2)
 279                 return true;
 280
 281         connection = mpdclient_get_connection(c);
 282         if (connection == NULL)
 283                 return false;
 284
 285         mpd_command_list_begin(connection, false);
 286
 287         if (mpd_connection_cmp_server_version(connection, 0, 16, 0) >= 0) {
 288                 if (current < length - 1)
 289                         mpd_send_delete_range(connection, current + 1, length);
 290                 if (current > 0)
 291                         mpd_send_delete_range(connection, 0, current);
 292         } else
 293                 while (--length >= 0)
 294                         if (length != current)
 295                                 mpd_send_delete(connection, length);
 296
 297         mpd_command_list_end(connection);
 298
 299         return mpdclient_finish_command(c);
 300 }
 301
 302 bool
 303 mpdclient_cmd_clear(struct mpdclient *c)
 304 {
 305         struct mpd_connection *connection = mpdclient_get_connection(c);
 306         struct mpd_status *status;
 307
 308         if (connection == NULL)
 309                 return false;
 310
 311         /* send "clear" and "status" */
 312         if (!mpd_command_list_begin(connection, false) ||
 313             !mpd_send_clear(connection) ||
 314             !mpd_send_status(connection) ||
 315             !mpd_command_list_end(connection))
 316                 return mpdclient_handle_error(c);
 317
 318         /* receive the new status, store it in the mpdclient struct */
 319
 320         status = mpd_recv_status(connection);
 321         if (status == NULL)
 322                 return mpdclient_handle_error(c);
 323
 324         if (c->status != NULL)
 325                 mpd_status_free(c->status);
 326         c->status = status;
 327
 328         if (!mpd_response_finish(connection))
 329                 return mpdclient_handle_error(c);
 330
 331         /* update mpdclient.playlist */
 332
 333         if (mpd_status_get_queue_length(status) == 0) {
 334                 /* after the "clear" command, the queue is really
 335                    empty - this means we can clear it locally,
 336                    reducing the UI latency */
 337                 playlist_clear(&c->playlist);
 338                 c->playlist.version = mpd_status_get_queue_version(status);
 339         }
 340
 341         c->events |= MPD_IDLE_QUEUE;
 342         return true;
 343 }
 344
 345 bool
 346 mpdclient_cmd_volume(struct mpdclient *c, gint value)
 347 {
 348         struct mpd_connection *connection = mpdclient_get_connection(c);
 349         if (connection == NULL)
 350                 return false;
 351
 352         mpd_send_set_volume(connection, value);
 353         return mpdclient_finish_command(c);
 354 }
 355
 356 bool
 357 mpdclient_cmd_volume_up(struct mpdclient *c)
 358 {
 359         struct mpd_connection *connection = mpdclient_get_connection(c);
 360         if (connection == NULL)
 361                 return false;
 362
 363         if (c->status == NULL ||
 364             mpd_status_get_volume(c->status) == -1)
 365                 return true;
 366
 367         if (c->volume < 0)
 368                 c->volume = mpd_status_get_volume(c->status);
 369
 370         if (c->volume >= 100)
 371                 return true;
 372
 373         return mpdclient_cmd_volume(c, ++c->volume);
 374 }
 375
 376 bool
 377 mpdclient_cmd_volume_down(struct mpdclient *c)
 378 {
 379         struct mpd_connection *connection = mpdclient_get_connection(c);
 380         if (connection == NULL)
 381                 return false;
 382
 383         if (c->status == NULL || mpd_status_get_volume(c->status) < 0)
 384                 return true;
 385
 386         if (c->volume < 0)
 387                 c->volume = mpd_status_get_volume(c->status);
 388
 389         if (c->volume <= 0)
 390                 return true;
 391
 392         return mpdclient_cmd_volume(c, --c->volume);
 393 }
 394
 395 bool
 396 mpdclient_cmd_add_path(struct mpdclient *c, const gchar *path_utf8)
 397 {
 398         struct mpd_connection *connection = mpdclient_get_connection(c);
 399         if (connection == NULL)
 400                 return false;
 401
 402         mpd_send_add(connection, path_utf8);
 403         return mpdclient_finish_command(c);
 404 }
 405
 406 bool
 407 mpdclient_cmd_add(struct mpdclient *c, const struct mpd_song *song)
 408 {
 409         struct mpd_connection *connection = mpdclient_get_connection(c);
 410         struct mpd_status *status;
 411         struct mpd_song *new_song;
 412
 413         assert(c != NULL);
 414         assert(song != NULL);
 415
 416         if (connection == NULL || c->status == NULL)
 417                 return false;
 418
 419         /* send the add command to mpd; at the same time, get the new
 420            status (to verify the new playlist id) and the last song
 421            (we hope that's the song we just added) */
 422
 423         if (!mpd_command_list_begin(connection, true) ||
 424             !mpd_send_add(connection, mpd_song_get_uri(song)) ||
 425             !mpd_send_status(connection) ||
 426             !mpd_send_get_queue_song_pos(connection,
 427                                          playlist_length(&c->playlist)) ||
 428             !mpd_command_list_end(connection) ||
 429             !mpd_response_next(connection))
 430                 return mpdclient_handle_error(c);
 431
 432         c->events |= MPD_IDLE_PLAYLIST;
 433
 434         status = mpd_recv_status(connection);
 435         if (status != NULL) {
 436                 if (c->status != NULL)
 437                         mpd_status_free(c->status);
 438                 c->status = status;
 439         }
 440
 441         if (!mpd_response_next(connection))
 442                 return mpdclient_handle_error(c);
 443
 444         new_song = mpd_recv_song(connection);
 445         if (!mpd_response_finish(connection) || new_song == NULL) {
 446                 if (new_song != NULL)
 447                         mpd_song_free(new_song);
 448
 449                 return mpd_connection_clear_error(connection) ||
 450                         mpdclient_handle_error(c);
 451         }
 452
 453         if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) + 1 &&
 454             mpd_status_get_queue_version(status) == c->playlist.version + 1) {
 455                 /* the cheap route: match on the new playlist length
 456                    and its version, we can keep our local playlist
 457                    copy in sync */
 458                 c->playlist.version = mpd_status_get_queue_version(status);
 459
 460                 /* the song we just received has the correct id;
 461                    append it to the local playlist */
 462                 playlist_append(&c->playlist, new_song);
 463         }
 464
 465         mpd_song_free(new_song);
 466
 467         return true;
 468 }
 469
 470 bool
 471 mpdclient_cmd_delete(struct mpdclient *c, gint idx)
 472 {
 473         struct mpd_connection *connection = mpdclient_get_connection(c);
 474         const struct mpd_song *song;
 475         struct mpd_status *status;
 476
 477         if (connection == NULL || c->status == NULL)
 478                 return false;
 479
 480         if (idx < 0 || (guint)idx >= playlist_length(&c->playlist))
 481                 return false;
 482
 483         song = playlist_get(&c->playlist, idx);
 484
 485         /* send the delete command to mpd; at the same time, get the
 486            new status (to verify the playlist id) */
 487
 488         if (!mpd_command_list_begin(connection, false) ||
 489             !mpd_send_delete_id(connection, mpd_song_get_id(song)) ||
 490             !mpd_send_status(connection) ||
 491             !mpd_command_list_end(connection))
 492                 return mpdclient_handle_error(c);
 493
 494         c->events |= MPD_IDLE_PLAYLIST;
 495
 496         status = mpd_recv_status(connection);
 497         if (status != NULL) {
 498                 if (c->status != NULL)
 499                         mpd_status_free(c->status);
 500                 c->status = status;
 501         }
 502
 503         if (!mpd_response_finish(connection))
 504                 return mpdclient_handle_error(c);
 505
 506         if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) - 1 &&
 507             mpd_status_get_queue_version(status) == c->playlist.version + 1) {
 508                 /* the cheap route: match on the new playlist length
 509                    and its version, we can keep our local playlist
 510                    copy in sync */
 511                 c->playlist.version = mpd_status_get_queue_version(status);
 512
 513                 /* remove the song from the local playlist */
 514                 playlist_remove(&c->playlist, idx);
 515
 516                 /* remove references to the song */
 517                 if (c->song == song)
 518                         c->song = NULL;
 519         }
 520
 521         return true;
 522 }
 523
 524 /**
 525  * Fallback for mpdclient_cmd_delete_range() on MPD older than 0.16.
 526  * It emulates the "delete range" command with a list of simple
 527  * "delete" commands.
 528  */
 529 static bool
 530 mpdclient_cmd_delete_range_fallback(struct mpdclient *c,
 531                                     unsigned start, unsigned end)
 532 {
 533         struct mpd_connection *connection = mpdclient_get_connection(c);
 534         if (connection == NULL)
 535                 return false;
 536
 537         if (!mpd_command_list_begin(connection, false))
 538                 return mpdclient_handle_error(c);
 539
 540         for (; start < end; --end)
 541                 mpd_send_delete(connection, start);
 542
 543         if (!mpd_command_list_end(connection) ||
 544             !mpd_response_finish(connection))
 545                 return mpdclient_handle_error(c);
 546
 547         return true;
 548 }
 549
 550 bool
 551 mpdclient_cmd_delete_range(struct mpdclient *c, unsigned start, unsigned end)
 552 {
 553         struct mpd_connection *connection;
 554         struct mpd_status *status;
 555
 556         if (end == start + 1)
 557                 /* if that's not really a range, we choose to use the
 558                    safer "deleteid" version */
 559                 return mpdclient_cmd_delete(c, start);
 560
 561         connection = mpdclient_get_connection(c);
 562         if (connection == NULL)
 563                 return false;
 564
 565         if (mpd_connection_cmp_server_version(connection, 0, 16, 0) < 0)
 566                 return mpdclient_cmd_delete_range_fallback(c, start, end);
 567
 568         /* MPD 0.16 supports "delete" with a range argument */
 569
 570         /* send the delete command to mpd; at the same time, get the
 571            new status (to verify the playlist id) */
 572
 573         if (!mpd_command_list_begin(connection, false) ||
 574             !mpd_send_delete_range(connection, start, end) ||
 575             !mpd_send_status(connection) ||
 576             !mpd_command_list_end(connection))
 577                 return mpdclient_handle_error(c);
 578
 579         c->events |= MPD_IDLE_PLAYLIST;
 580
 581         status = mpd_recv_status(connection);
 582         if (status != NULL) {
 583                 if (c->status != NULL)
 584                         mpd_status_free(c->status);
 585                 c->status = status;
 586         }
 587
 588         if (!mpd_response_finish(connection))
 589                 return mpdclient_handle_error(c);
 590
 591         if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) - (end - start) &&
 592             mpd_status_get_queue_version(status) == c->playlist.version + 1) {
 593                 /* the cheap route: match on the new playlist length
 594                    and its version, we can keep our local playlist
 595                    copy in sync */
 596                 c->playlist.version = mpd_status_get_queue_version(status);
 597
 598                 /* remove the song from the local playlist */
 599                 while (end > start) {
 600                         --end;
 601
 602                         /* remove references to the song */
 603                         if (c->song == playlist_get(&c->playlist, end))
 604                                 c->song = NULL;
 605
 606                         playlist_remove(&c->playlist, end);
 607                 }
 608         }
 609
 610         return true;
 611 }
 612
 613 bool
 614 mpdclient_cmd_move(struct mpdclient *c, gint old_index, gint new_index)
 615 {
 616         struct mpd_connection *connection = mpdclient_get_connection(c);
 617         const struct mpd_song *song1, *song2;
 618         struct mpd_status *status;
 619
 620         if (connection == NULL)
 621                 return false;
 622
 623         if (old_index == new_index || new_index < 0 ||
 624             (guint)new_index >= c->playlist.list->len)
 625                 return false;
 626
 627         song1 = playlist_get(&c->playlist, old_index);
 628         song2 = playlist_get(&c->playlist, new_index);
 629
 630         /* send the delete command to mpd; at the same time, get the
 631            new status (to verify the playlist id) */
 632
 633         if (!mpd_command_list_begin(connection, false) ||
 634             !mpd_send_swap_id(connection, mpd_song_get_id(song1),
 635                               mpd_song_get_id(song2)) ||
 636             !mpd_send_status(connection) ||
 637             !mpd_command_list_end(connection))
 638                 return mpdclient_handle_error(c);
 639
 640         c->events |= MPD_IDLE_PLAYLIST;
 641
 642         status = mpd_recv_status(connection);
 643         if (status != NULL) {
 644                 if (c->status != NULL)
 645                         mpd_status_free(c->status);
 646                 c->status = status;
 647         }
 648
 649         if (!mpd_response_finish(connection))
 650                 return mpdclient_handle_error(c);
 651
 652         if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) &&
 653             mpd_status_get_queue_version(status) == c->playlist.version + 1) {
 654                 /* the cheap route: match on the new playlist length
 655                    and its version, we can keep our local playlist
 656                    copy in sync */
 657                 c->playlist.version = mpd_status_get_queue_version(status);
 658
 659                 /* swap songs in the local playlist */
 660                 playlist_swap(&c->playlist, old_index, new_index);
 661         }
 662
 663         return true;
 664 }
 665
 666
 667 /****************************************************************************/
 668 /*** Playlist management functions ******************************************/
 669 /****************************************************************************/
 670
 671 /* update playlist */
 672 bool
 673 mpdclient_playlist_update(struct mpdclient *c)
 674 {
 675         struct mpd_connection *connection = mpdclient_get_connection(c);
 676         struct mpd_entity *entity;
 677
 678         if (connection == NULL)
 679                 return false;
 680
 681         playlist_clear(&c->playlist);
 682
 683         mpd_send_list_queue_meta(connection);
 684         while ((entity = mpd_recv_entity(connection))) {
 685                 if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 686                         playlist_append(&c->playlist, mpd_entity_get_song(entity));
 687
 688                 mpd_entity_free(entity);
 689         }
 690
 691         c->playlist.version = mpd_status_get_queue_version(c->status);
 692         c->song = NULL;
 693
 694         return mpdclient_finish_command(c);
 695 }
 696
 697 /* update playlist (plchanges) */
 698 bool
 699 mpdclient_playlist_update_changes(struct mpdclient *c)
 700 {
 701         struct mpd_connection *connection = mpdclient_get_connection(c);
 702         struct mpd_song *song;
 703         guint length;
 704
 705         if (connection == NULL)
 706                 return false;
 707
 708         mpd_send_queue_changes_meta(connection, c->playlist.version);
 709
 710         while ((song = mpd_recv_song(connection)) != NULL) {
 711                 int pos = mpd_song_get_pos(song);
 712
 713                 if (pos >= 0 && (guint)pos < c->playlist.list->len) {
 714                         /* update song */
 715                         playlist_replace(&c->playlist, pos, song);
 716                 } else {
 717                         /* add a new song */
 718                         playlist_append(&c->playlist, song);
 719                 }
 720
 721                 mpd_song_free(song);
 722         }
 723
 724         /* remove trailing songs */
 725
 726         length = mpd_status_get_queue_length(c->status);
 727         while (length < c->playlist.list->len) {
 728                 guint pos = c->playlist.list->len - 1;
 729
 730                 /* Remove the last playlist entry */
 731                 playlist_remove(&c->playlist, pos);
 732         }
 733
 734         c->song = NULL;
 735         c->playlist.version = mpd_status_get_queue_version(c->status);
 736
 737         return mpdclient_finish_command(c);
 738 }
 739
 740
 741 /****************************************************************************/
 742 /*** Filelist functions *****************************************************/
 743 /****************************************************************************/
 744
 745 bool
 746 mpdclient_filelist_add_all(struct mpdclient *c, struct filelist *fl)
 747 {
 748         struct mpd_connection *connection = mpdclient_get_connection(c);
 749         guint i;
 750
 751         if (connection == NULL)
 752                 return false;
 753
 754         if (filelist_is_empty(fl))
 755                 return true;
 756
 757         mpd_command_list_begin(connection, false);
 758
 759         for (i = 0; i < filelist_length(fl); ++i) {
 760                 struct filelist_entry *entry = filelist_get(fl, i);
 761                 struct mpd_entity *entity  = entry->entity;
 762
 763                 if (entity != NULL &&
 764                     mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
 765                         const struct mpd_song *song =
 766                                 mpd_entity_get_song(entity);
 767
 768                         mpd_send_add(connection, mpd_song_get_uri(song));
 769                 }
 770         }
 771
 772         mpd_command_list_end(connection);
 773         return mpdclient_finish_command(c);
 774 }