/* For all label-operator pairs, write the operator and all its
* operands to the DB recursively. */
static void
dbwrite_operator (void *key, void *value, void *udata)
{
gchar *query;
gchar *label = key;
xmmsv_coll_t *coll = value;
coll_dbwrite_t *dbinfos = udata;
gchar *esc_label;
gint serial_id;
/* Only serialize each operator once, get previous id if exists */
if (!xmms_collection_get_int_attr (coll, XMMS_COLLSERIAL_ATTR_ID, &serial_id)) {
serial_id = dbinfos->collid;
dbinfos->collid = xmms_collection_dbwrite_operator (dbinfos->session,
dbinfos->collid, coll);
xmms_collection_set_int_attr (coll, XMMS_COLLSERIAL_ATTR_ID, serial_id);
}
esc_label = sqlite_prepare_string (label);
query = g_strdup_printf ("INSERT INTO CollectionLabels VALUES(%d, %d, %s)",
serial_id, dbinfos->nsid, esc_label);
xmms_medialib_select (dbinfos->session, query, NULL);
g_free (query);
g_free (esc_label);
}
static void
xmms_playlist_update_partyshuffle (xmms_playlist_t *playlist,
const gchar *plname, xmmsv_coll_t *coll)
{
gint history, upcoming, currpos, size;
xmmsv_coll_t *src;
xmmsv_t *tmp;
XMMS_DBG ("PLAYLIST: Update partyshuffle.");
if (!xmms_collection_get_int_attr (coll, "history", &history)) {
history = 0;
}
if (!xmms_collection_get_int_attr (coll, "upcoming", &upcoming)) {
upcoming = XMMS_DEFAULT_PARTYSHUFFLE_UPCOMING;
}
currpos = xmms_playlist_coll_get_currpos (coll);
while (currpos > history) {
/* Removing entries is fast enough to be processed at once. */
xmms_playlist_remove_unlocked (playlist, plname, coll, 0, NULL);
currpos = xmms_playlist_coll_get_currpos (coll);
}
g_return_if_fail(xmmsv_list_get (xmmsv_coll_operands_get (coll), 0, &tmp));
g_return_if_fail(xmmsv_get_coll (tmp, &src));
/* Since getting random media can be slow on huge medialibs, we refill only
* one entry at a time. This let other threads a chance to get the lock on
* the playlist object as soon as possible. */
size = xmms_playlist_coll_get_size (coll);
if (size < currpos + 1 + upcoming) {
xmms_medialib_entry_t randentry;
randentry = xmms_collection_get_random_media (playlist->colldag, src);
if (randentry > 0) {
xmms_playlist_add_entry_unlocked (playlist, plname, coll, randentry, NULL);
}
}
}
/** Get the current position in the given playlist (set to -1 if absent). */
static gint
xmms_playlist_coll_get_currpos (xmmsv_coll_t *plcoll)
{
gint currpos;
/* If absent, set to -1 and save it */
if (!xmms_collection_get_int_attr (plcoll, "position", &currpos)) {
currpos = -1;
xmms_collection_set_int_attr (plcoll, "position", currpos);
}
return currpos;
}
static void
xmms_playlist_update_queue (xmms_playlist_t *playlist, const gchar *plname,
xmmsv_coll_t *coll)
{
gint history, currpos;
XMMS_DBG ("PLAYLIST: update queue.");
if (!xmms_collection_get_int_attr (coll, "history", &history)) {
history = 0;
}
currpos = xmms_playlist_coll_get_currpos (coll);
while (currpos > history) {
/* Removing entries is fast enough to be processed at once. */
xmms_playlist_remove_unlocked (playlist, plname, coll, 0, NULL);
currpos = xmms_playlist_coll_get_currpos (coll);
}
}
