SongIterator Connection::GetPlaylistContent(const std::string &path)
{
prechecksNoCommandsList();
mpd_send_list_playlist_meta(m_connection.get(), path.c_str());
SongIterator result(m_connection.get(), defaultFetcher<Song>(mpd_recv_song));
checkErrors();
return result;
}
/*
* Retrieve the contents of a stored playlist. Will synchronize local playlists
* with the MPD server, overwriting the local versions.
*
* Returns true on success, false on failure.
*/
bool
Control::update_playlist(Playlist * playlist)
{
Song * song;
mpd_entity * ent;
const mpd_song * ent_song;
EXIT_IDLE;
pms->log(MSG_DEBUG, 0, "Retrieving playlist %s from MPD server.\n", playlist->filename.c_str());
if (!mpd_send_list_playlist_meta(conn->h(), playlist->filename.c_str())) {
return false;
}
playlist->clear();
while ((ent = mpd_recv_entity(conn->h())) != NULL)
{
switch(mpd_entity_get_type(ent))
{
case MPD_ENTITY_TYPE_SONG:
ent_song = mpd_entity_get_song(ent);
song = new Song(ent_song);
song->id = MPD_SONG_NO_ID;
song->pos = MPD_SONG_NO_NUM;
playlist->add_local(song);
break;
case MPD_ENTITY_TYPE_UNKNOWN:
pms->log(MSG_DEBUG, 0, "BUG in retrieve_lists(): entity type not implemented by libmpdclient\n");
break;
default:
pms->log(MSG_DEBUG, 0, "BUG in retrieve_lists(): entity type not implemented by PMS\n");
break;
}
mpd_entity_free(ent);
}
playlist->set_column_size();
return get_error_bool();
}
/*
* pgmpc_playlist
* List all songs in given playlist. If not playlist is specified list
* songs of current playlist.
*/
Datum
pgmpc_playlist(PG_FUNCTION_ARGS)
{
TupleDesc tupdesc;
Tuplestorestate *tupstore;
char *playlist = NULL;
bool ret;
if (PG_NARGS() == 1 && !PG_ARGISNULL(0))
playlist = text_to_cstring(PG_GETARG_TEXT_PP(0));
/* Initialize function context */
pgmpc_init_setof_single(fcinfo, TEXTOID, "playlist", &tupdesc, &tupstore);
/*
* Run the command to get all the songs.
*/
pgmpc_init();
ret = playlist ?
mpd_send_list_playlist_meta(mpd_conn, playlist) :
mpd_send_list_queue_meta(mpd_conn);
if (!ret)
pgmpc_print_error();
/* Now get all the songs and send them back to caller */
while (true)
{
Datum values[1];
bool nulls[1];
struct mpd_song *song = mpd_recv_song(mpd_conn);
/* Leave if done */
if (song == NULL)
break;
/* Assign song name */
nulls[0] = false;
values[0] = CStringGetTextDatum(mpd_song_get_uri(song));
/* Save values */
tuplestore_putvalues(tupstore, tupdesc, values, nulls);
/* Clean up for the next one */
mpd_song_free(song);
}
/* We may be in error state, so check for it */
if (mpd_connection_get_error(mpd_conn) != MPD_ERROR_SUCCESS)
{
const char *message = mpd_connection_get_error_message(mpd_conn);
pgmpc_reset();
ereport(ERROR,
(errcode(ERRCODE_SYSTEM_ERROR),
errmsg("mpd command failed: %s",
message)));
}
/* Clean up */
pgmpc_reset();
/* clean up and return the tuplestore */
tuplestore_donestoring(tupstore);
return (Datum) 0;
}
