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db.c
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db.c
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/*
* Copyright (C) 2009-2011 Julien BLACHE <jb@jblache.org>
* Copyright (C) 2010 Kai Elwert <elwertk@googlemail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <stdint.h>
#include <stdbool.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <unictype.h>
#include <uninorm.h>
#include <unistr.h>
#include <sys/mman.h>
#include <limits.h>
#include <assert.h>
#include <sqlite3.h>
#include "conffile.h"
#include "logger.h"
#include "cache.h"
#include "listener.h"
#include "library.h"
#include "misc.h"
#include "db.h"
#include "db_init.h"
#include "db_upgrade.h"
#include "rng.h"
// Inotify cookies are uint32_t
#define INOTIFY_FAKE_COOKIE ((int64_t)1 << 32)
// Flags that the field will not be bound to prepared statements, which is relevant if the field has no
// matching column, or if the the column value is set automatically by the db, e.g. by a trigger
#define DB_FLAG_NO_BIND (1 << 0)
// Flags that we will only update column value if we have non-zero value (to avoid zeroing e.g. rating)
#define DB_FLAG_NO_ZERO (1 << 1)
// The two last columns of playlist_info are calculated fields, so all playlist retrieval functions must use this query
#define Q_PL_SELECT "SELECT f.*, COUNT(pi.id), SUM(pi.filepath NOT NULL AND pi.filepath LIKE 'http%%')" \
" FROM playlists f LEFT JOIN playlistitems pi ON (f.id = pi.playlistid)"
enum group_type {
G_ALBUMS = 1,
G_ARTISTS = 2,
};
enum field_type {
DB_TYPE_INT,
DB_TYPE_INT64,
DB_TYPE_STRING,
};
enum fixup_type {
DB_FIXUP_STANDARD = 0,
DB_FIXUP_NO_SANITIZE,
DB_FIXUP_TITLE,
DB_FIXUP_ARTIST,
DB_FIXUP_ALBUM,
DB_FIXUP_ALBUM_ARTIST,
DB_FIXUP_GENRE,
DB_FIXUP_COMPOSER,
DB_FIXUP_TYPE,
DB_FIXUP_CODECTYPE,
DB_FIXUP_MEDIA_KIND,
DB_FIXUP_ITEM_KIND,
DB_FIXUP_TITLE_SORT,
DB_FIXUP_ARTIST_SORT,
DB_FIXUP_ALBUM_SORT,
DB_FIXUP_ALBUM_ARTIST_SORT,
DB_FIXUP_COMPOSER_SORT,
DB_FIXUP_TIME_MODIFIED,
DB_FIXUP_SONGARTISTID,
DB_FIXUP_SONGALBUMID,
};
struct db_unlock {
int proceed;
pthread_cond_t cond;
pthread_mutex_t lck;
};
struct db_statements
{
sqlite3_stmt *files_insert;
sqlite3_stmt *files_update;
sqlite3_stmt *files_ping;
sqlite3_stmt *playlists_insert;
sqlite3_stmt *playlists_update;
sqlite3_stmt *queue_items_insert;
sqlite3_stmt *queue_items_update;
};
struct col_type_map {
char *name;
ssize_t offset;
enum field_type type;
enum fixup_type fixup;
short flag;
};
struct qi_mfi_map
{
ssize_t qi_offset;
ssize_t mfi_offset;
ssize_t dbmfi_offset;
};
struct fixup_ctx
{
const struct col_type_map *map;
size_t map_size;
void *data;
struct media_file_info *mfi;
struct playlist_info *pli;
struct db_queue_item *qi;
};
struct query_clause {
char *where;
char *group;
char *having;
char *order;
char *index;
};
struct browse_clause {
char *select;
char *where;
char *group;
};
/* This list must be kept in sync with
* - the order of the columns in the files table
* - the type and name of the fields in struct media_file_info
*/
static const struct col_type_map mfi_cols_map[] =
{
{ "id", mfi_offsetof(id), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_BIND },
{ "path", mfi_offsetof(path), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "virtual_path", mfi_offsetof(virtual_path), DB_TYPE_STRING },
{ "fname", mfi_offsetof(fname), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "directory_id", mfi_offsetof(directory_id), DB_TYPE_INT },
{ "title", mfi_offsetof(title), DB_TYPE_STRING, DB_FIXUP_TITLE },
{ "artist", mfi_offsetof(artist), DB_TYPE_STRING, DB_FIXUP_ARTIST },
{ "album", mfi_offsetof(album), DB_TYPE_STRING, DB_FIXUP_ALBUM },
{ "album_artist", mfi_offsetof(album_artist), DB_TYPE_STRING, DB_FIXUP_ALBUM_ARTIST },
{ "genre", mfi_offsetof(genre), DB_TYPE_STRING, DB_FIXUP_GENRE },
{ "comment", mfi_offsetof(comment), DB_TYPE_STRING },
{ "type", mfi_offsetof(type), DB_TYPE_STRING, DB_FIXUP_TYPE },
{ "composer", mfi_offsetof(composer), DB_TYPE_STRING, DB_FIXUP_COMPOSER },
{ "orchestra", mfi_offsetof(orchestra), DB_TYPE_STRING },
{ "conductor", mfi_offsetof(conductor), DB_TYPE_STRING },
{ "grouping", mfi_offsetof(grouping), DB_TYPE_STRING },
{ "url", mfi_offsetof(url), DB_TYPE_STRING },
{ "bitrate", mfi_offsetof(bitrate), DB_TYPE_INT },
{ "samplerate", mfi_offsetof(samplerate), DB_TYPE_INT },
{ "song_length", mfi_offsetof(song_length), DB_TYPE_INT },
{ "file_size", mfi_offsetof(file_size), DB_TYPE_INT64 },
{ "year", mfi_offsetof(year), DB_TYPE_INT },
{ "date_released", mfi_offsetof(date_released), DB_TYPE_INT64 },
{ "track", mfi_offsetof(track), DB_TYPE_INT },
{ "total_tracks", mfi_offsetof(total_tracks), DB_TYPE_INT },
{ "disc", mfi_offsetof(disc), DB_TYPE_INT },
{ "total_discs", mfi_offsetof(total_discs), DB_TYPE_INT },
{ "bpm", mfi_offsetof(bpm), DB_TYPE_INT },
{ "compilation", mfi_offsetof(compilation), DB_TYPE_INT },
{ "artwork", mfi_offsetof(artwork), DB_TYPE_INT },
{ "rating", mfi_offsetof(rating), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_ZERO },
{ "play_count", mfi_offsetof(play_count), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_ZERO },
{ "skip_count", mfi_offsetof(skip_count), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_ZERO },
{ "seek", mfi_offsetof(seek), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_ZERO },
{ "data_kind", mfi_offsetof(data_kind), DB_TYPE_INT },
{ "media_kind", mfi_offsetof(media_kind), DB_TYPE_INT, DB_FIXUP_MEDIA_KIND },
{ "item_kind", mfi_offsetof(item_kind), DB_TYPE_INT, DB_FIXUP_ITEM_KIND },
{ "description", mfi_offsetof(description), DB_TYPE_STRING },
{ "db_timestamp", mfi_offsetof(db_timestamp), DB_TYPE_INT },
{ "time_added", mfi_offsetof(time_added), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_ZERO },
{ "time_modified", mfi_offsetof(time_modified), DB_TYPE_INT, DB_FIXUP_TIME_MODIFIED },
{ "time_played", mfi_offsetof(time_played), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_ZERO },
{ "time_skipped", mfi_offsetof(time_skipped), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_ZERO },
{ "disabled", mfi_offsetof(disabled), DB_TYPE_INT64 },
{ "sample_count", mfi_offsetof(sample_count), DB_TYPE_INT64 },
{ "codectype", mfi_offsetof(codectype), DB_TYPE_STRING, DB_FIXUP_CODECTYPE },
{ "idx", mfi_offsetof(idx), DB_TYPE_INT },
{ "has_video", mfi_offsetof(has_video), DB_TYPE_INT },
{ "contentrating", mfi_offsetof(contentrating), DB_TYPE_INT },
{ "bits_per_sample", mfi_offsetof(bits_per_sample), DB_TYPE_INT },
{ "tv_series_name", mfi_offsetof(tv_series_name), DB_TYPE_STRING },
{ "tv_episode_num_str", mfi_offsetof(tv_episode_num_str), DB_TYPE_STRING },
{ "tv_network_name", mfi_offsetof(tv_network_name), DB_TYPE_STRING },
{ "tv_episode_sort", mfi_offsetof(tv_episode_sort), DB_TYPE_INT },
{ "tv_season_num", mfi_offsetof(tv_season_num), DB_TYPE_INT },
{ "songartistid", mfi_offsetof(songartistid), DB_TYPE_INT64, DB_FIXUP_SONGARTISTID },
{ "songalbumid", mfi_offsetof(songalbumid), DB_TYPE_INT64, DB_FIXUP_SONGALBUMID },
{ "title_sort", mfi_offsetof(title_sort), DB_TYPE_STRING, DB_FIXUP_TITLE_SORT },
{ "artist_sort", mfi_offsetof(artist_sort), DB_TYPE_STRING, DB_FIXUP_ARTIST_SORT },
{ "album_sort", mfi_offsetof(album_sort), DB_TYPE_STRING, DB_FIXUP_ALBUM_SORT },
{ "album_artist_sort", mfi_offsetof(album_artist_sort), DB_TYPE_STRING, DB_FIXUP_ALBUM_ARTIST_SORT },
{ "composer_sort", mfi_offsetof(composer_sort), DB_TYPE_STRING, DB_FIXUP_COMPOSER_SORT },
{ "channels", mfi_offsetof(channels), DB_TYPE_INT },
{ "usermark", mfi_offsetof(usermark), DB_TYPE_INT },
{ "scan_kind", mfi_offsetof(scan_kind), DB_TYPE_INT },
{ "lyrics", mfi_offsetof(lyrics), DB_TYPE_STRING },
};
/* This list must be kept in sync with
* - the order of the columns in the playlists table
* - the type and name of the fields in struct playlist_info
*/
static const struct col_type_map pli_cols_map[] =
{
{ "id", pli_offsetof(id), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_BIND },
{ "title", pli_offsetof(title), DB_TYPE_STRING, DB_FIXUP_TITLE },
{ "type", pli_offsetof(type), DB_TYPE_INT },
{ "query", pli_offsetof(query), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "db_timestamp", pli_offsetof(db_timestamp), DB_TYPE_INT },
{ "disabled", pli_offsetof(disabled), DB_TYPE_INT64 },
{ "path", pli_offsetof(path), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "idx", pli_offsetof(index), DB_TYPE_INT },
{ "special_id", pli_offsetof(special_id), DB_TYPE_INT },
{ "virtual_path", pli_offsetof(virtual_path), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "parent_id", pli_offsetof(parent_id), DB_TYPE_INT },
{ "directory_id", pli_offsetof(directory_id), DB_TYPE_INT },
{ "query_order", pli_offsetof(query_order), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "query_limit", pli_offsetof(query_limit), DB_TYPE_INT },
{ "media_kind", pli_offsetof(media_kind), DB_TYPE_INT, DB_FIXUP_MEDIA_KIND },
{ "artwork_url", pli_offsetof(artwork_url), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "scan_kind", pli_offsetof(scan_kind), DB_TYPE_INT },
// Not in the database, but returned via the query's COUNT()/SUM()
{ "items", pli_offsetof(items), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_BIND },
{ "streams", pli_offsetof(streams), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_BIND },
};
/* This list must be kept in sync with
* - the order of the columns in the queue table
* - the type and name of the fields in struct db_queue_item
* - with qi_mfi_map
*/
static const struct col_type_map qi_cols_map[] =
{
{ "id", qi_offsetof(id), DB_TYPE_INT, DB_FIXUP_STANDARD, DB_FLAG_NO_BIND },
{ "file_id", qi_offsetof(file_id), DB_TYPE_INT },
{ "pos", qi_offsetof(pos), DB_TYPE_INT },
{ "shuffle_pos", qi_offsetof(shuffle_pos), DB_TYPE_INT },
{ "data_kind", qi_offsetof(data_kind), DB_TYPE_INT },
{ "media_kind", qi_offsetof(media_kind), DB_TYPE_INT, DB_FIXUP_MEDIA_KIND },
{ "song_length", qi_offsetof(song_length), DB_TYPE_INT },
{ "path", qi_offsetof(path), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "virtual_path", qi_offsetof(virtual_path), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "title", qi_offsetof(title), DB_TYPE_STRING, DB_FIXUP_TITLE },
{ "artist", qi_offsetof(artist), DB_TYPE_STRING, DB_FIXUP_ARTIST },
{ "album_artist", qi_offsetof(album_artist), DB_TYPE_STRING, DB_FIXUP_ALBUM_ARTIST },
{ "album", qi_offsetof(album), DB_TYPE_STRING, DB_FIXUP_ALBUM },
{ "genre", qi_offsetof(genre), DB_TYPE_STRING, DB_FIXUP_GENRE },
{ "songalbumid", qi_offsetof(songalbumid), DB_TYPE_INT64 },
{ "time_modified", qi_offsetof(time_modified), DB_TYPE_INT },
{ "artist_sort", qi_offsetof(artist_sort), DB_TYPE_STRING, DB_FIXUP_ARTIST_SORT },
{ "album_sort", qi_offsetof(album_sort), DB_TYPE_STRING, DB_FIXUP_ALBUM_SORT },
{ "album_artist_sort", qi_offsetof(album_artist_sort), DB_TYPE_STRING, DB_FIXUP_ALBUM_ARTIST_SORT },
{ "year", qi_offsetof(year), DB_TYPE_INT },
{ "track", qi_offsetof(track), DB_TYPE_INT },
{ "disc", qi_offsetof(disc), DB_TYPE_INT },
{ "artwork_url", qi_offsetof(artwork_url), DB_TYPE_STRING, DB_FIXUP_NO_SANITIZE },
{ "queue_version", qi_offsetof(queue_version), DB_TYPE_INT },
{ "composer", qi_offsetof(composer), DB_TYPE_STRING, DB_FIXUP_COMPOSER },
{ "songartistid", qi_offsetof(songartistid), DB_TYPE_INT64 },
{ "type", qi_offsetof(type), DB_TYPE_STRING, DB_FIXUP_CODECTYPE },
{ "bitrate", qi_offsetof(bitrate), DB_TYPE_INT },
{ "samplerate", qi_offsetof(samplerate), DB_TYPE_INT },
{ "channels", qi_offsetof(channels), DB_TYPE_INT },
};
/* This list must be kept in sync with
* - the order of the columns in the files table
* - the name of the fields in struct db_media_file_info
*/
static const ssize_t dbmfi_cols_map[] =
{
dbmfi_offsetof(id),
dbmfi_offsetof(path),
dbmfi_offsetof(virtual_path),
dbmfi_offsetof(fname),
dbmfi_offsetof(directory_id),
dbmfi_offsetof(title),
dbmfi_offsetof(artist),
dbmfi_offsetof(album),
dbmfi_offsetof(album_artist),
dbmfi_offsetof(genre),
dbmfi_offsetof(comment),
dbmfi_offsetof(type),
dbmfi_offsetof(composer),
dbmfi_offsetof(orchestra),
dbmfi_offsetof(conductor),
dbmfi_offsetof(grouping),
dbmfi_offsetof(url),
dbmfi_offsetof(bitrate),
dbmfi_offsetof(samplerate),
dbmfi_offsetof(song_length),
dbmfi_offsetof(file_size),
dbmfi_offsetof(year),
dbmfi_offsetof(date_released),
dbmfi_offsetof(track),
dbmfi_offsetof(total_tracks),
dbmfi_offsetof(disc),
dbmfi_offsetof(total_discs),
dbmfi_offsetof(bpm),
dbmfi_offsetof(compilation),
dbmfi_offsetof(artwork),
dbmfi_offsetof(rating),
dbmfi_offsetof(play_count),
dbmfi_offsetof(skip_count),
dbmfi_offsetof(seek),
dbmfi_offsetof(data_kind),
dbmfi_offsetof(media_kind),
dbmfi_offsetof(item_kind),
dbmfi_offsetof(description),
dbmfi_offsetof(db_timestamp),
dbmfi_offsetof(time_added),
dbmfi_offsetof(time_modified),
dbmfi_offsetof(time_played),
dbmfi_offsetof(time_skipped),
dbmfi_offsetof(disabled),
dbmfi_offsetof(sample_count),
dbmfi_offsetof(codectype),
dbmfi_offsetof(idx),
dbmfi_offsetof(has_video),
dbmfi_offsetof(contentrating),
dbmfi_offsetof(bits_per_sample),
dbmfi_offsetof(tv_series_name),
dbmfi_offsetof(tv_episode_num_str),
dbmfi_offsetof(tv_network_name),
dbmfi_offsetof(tv_episode_sort),
dbmfi_offsetof(tv_season_num),
dbmfi_offsetof(songartistid),
dbmfi_offsetof(songalbumid),
dbmfi_offsetof(title_sort),
dbmfi_offsetof(artist_sort),
dbmfi_offsetof(album_sort),
dbmfi_offsetof(album_artist_sort),
dbmfi_offsetof(composer_sort),
dbmfi_offsetof(channels),
dbmfi_offsetof(usermark),
dbmfi_offsetof(scan_kind),
dbmfi_offsetof(lyrics),
};
/* This list must be kept in sync with
* - the order of the columns in the playlists table
* - the name of the fields in struct playlist_info
*/
static const ssize_t dbpli_cols_map[] =
{
dbpli_offsetof(id),
dbpli_offsetof(title),
dbpli_offsetof(type),
dbpli_offsetof(query),
dbpli_offsetof(db_timestamp),
dbpli_offsetof(disabled),
dbpli_offsetof(path),
dbpli_offsetof(index),
dbpli_offsetof(special_id),
dbpli_offsetof(virtual_path),
dbpli_offsetof(parent_id),
dbpli_offsetof(directory_id),
dbpli_offsetof(query_order),
dbpli_offsetof(query_limit),
dbpli_offsetof(media_kind),
dbpli_offsetof(artwork_url),
dbpli_offsetof(scan_kind),
dbpli_offsetof(items),
dbpli_offsetof(streams),
};
/* This list must be kept in sync with
* - the order of fields in the Q_GROUP_ALBUMS and Q_GROUP_ARTISTS query
* - the name of the fields in struct group_info
*/
static const ssize_t dbgri_cols_map[] =
{
dbgri_offsetof(id),
dbgri_offsetof(persistentid),
dbgri_offsetof(itemname),
dbgri_offsetof(itemname_sort),
dbgri_offsetof(itemcount),
dbgri_offsetof(groupalbumcount),
dbgri_offsetof(songalbumartist),
dbgri_offsetof(songartistid),
dbgri_offsetof(song_length),
dbgri_offsetof(data_kind),
dbgri_offsetof(media_kind),
dbgri_offsetof(year),
dbgri_offsetof(date_released),
dbgri_offsetof(time_added),
dbgri_offsetof(time_played),
dbgri_offsetof(seek),
};
/* This list must be kept in sync with
* - the order of fields in the Q_BROWSE_INFO query
* - the name of the fields in struct db_browse_info
*/
static const ssize_t dbbi_cols_map[] =
{
dbbi_offsetof(itemname),
dbbi_offsetof(itemname_sort),
dbbi_offsetof(track_count),
dbbi_offsetof(album_count),
dbbi_offsetof(artist_count),
dbbi_offsetof(song_length),
dbbi_offsetof(data_kind),
dbbi_offsetof(media_kind),
dbbi_offsetof(year),
dbbi_offsetof(date_released),
dbbi_offsetof(time_added),
dbbi_offsetof(time_played),
dbbi_offsetof(seek),
};
/* This list must be kept in sync with
* - qi_cols_map
*/
static const struct qi_mfi_map qi_mfi_map[] =
{
{ qi_offsetof(id), -1, -1 },
{ qi_offsetof(file_id), mfi_offsetof(id), dbmfi_offsetof(id) },
{ qi_offsetof(pos), -1, -1 },
{ qi_offsetof(shuffle_pos), -1, -1 },
{ qi_offsetof(data_kind), mfi_offsetof(data_kind), dbmfi_offsetof(data_kind) },
{ qi_offsetof(media_kind), mfi_offsetof(media_kind), dbmfi_offsetof(media_kind) },
{ qi_offsetof(song_length), mfi_offsetof(song_length), dbmfi_offsetof(song_length) },
{ qi_offsetof(path), mfi_offsetof(path), dbmfi_offsetof(path) },
{ qi_offsetof(virtual_path), mfi_offsetof(virtual_path), dbmfi_offsetof(virtual_path) },
{ qi_offsetof(title), mfi_offsetof(title), dbmfi_offsetof(title) },
{ qi_offsetof(artist), mfi_offsetof(artist), dbmfi_offsetof(artist) },
{ qi_offsetof(album_artist), mfi_offsetof(album_artist), dbmfi_offsetof(album_artist) },
{ qi_offsetof(album), mfi_offsetof(album), dbmfi_offsetof(album) },
{ qi_offsetof(genre), mfi_offsetof(genre), dbmfi_offsetof(genre) },
{ qi_offsetof(songalbumid), mfi_offsetof(songalbumid), dbmfi_offsetof(songalbumid) },
{ qi_offsetof(time_modified), mfi_offsetof(time_modified), dbmfi_offsetof(time_modified) },
{ qi_offsetof(artist_sort), mfi_offsetof(artist_sort), dbmfi_offsetof(artist_sort) },
{ qi_offsetof(album_sort), mfi_offsetof(album_sort), dbmfi_offsetof(album_sort) },
{ qi_offsetof(album_artist_sort), mfi_offsetof(album_artist_sort), dbmfi_offsetof(album_artist_sort) },
{ qi_offsetof(year), mfi_offsetof(year), dbmfi_offsetof(year) },
{ qi_offsetof(track), mfi_offsetof(track), dbmfi_offsetof(track) },
{ qi_offsetof(disc), mfi_offsetof(disc), dbmfi_offsetof(disc) },
{ qi_offsetof(artwork_url), -1, -1 },
{ qi_offsetof(queue_version), -1, -1 },
{ qi_offsetof(composer), mfi_offsetof(composer), dbmfi_offsetof(composer) },
{ qi_offsetof(songartistid), mfi_offsetof(songartistid), dbmfi_offsetof(songartistid) },
{ qi_offsetof(type), mfi_offsetof(type), dbmfi_offsetof(type) },
{ qi_offsetof(bitrate), mfi_offsetof(bitrate), dbmfi_offsetof(bitrate) },
{ qi_offsetof(samplerate), mfi_offsetof(samplerate), dbmfi_offsetof(samplerate) },
{ qi_offsetof(channels), mfi_offsetof(channels), dbmfi_offsetof(channels) },
};
/* This list must be kept in sync with
* - the order of the columns in the inotify table
* - the name and type of the fields in struct watch_info
*/
static const struct col_type_map wi_cols_map[] =
{
{ "wd", wi_offsetof(wd), DB_TYPE_INT, DB_FLAG_NO_BIND },
{ "cookie", wi_offsetof(cookie), DB_TYPE_INT },
{ "path", wi_offsetof(path), DB_TYPE_STRING },
};
/* Sort clauses, used for ORDER BY */
/* Keep in sync with enum sort_type and indices */
static const char *sort_clause[] =
{
"",
"f.title_sort",
"f.album_sort, f.disc, f.track",
"f.album_artist_sort, f.album_sort, f.disc, f.track",
"f.type, f.parent_id, f.special_id, f.title",
"f.year",
"f.genre",
"f.composer_sort",
"f.disc",
"f.track",
"f.virtual_path COLLATE NOCASE",
"pos",
"shuffle_pos",
"f.date_released DESC, f.title_sort DESC",
};
/* Browse clauses, used for SELECT, WHERE, GROUP BY and for default ORDER BY
* Keep in sync with enum query_type and indices
* Col 1: for SELECT, Col 2: for WHERE, Col 3: for GROUP BY/ORDER BY
*/
static const struct browse_clause browse_clause[] =
{
{ "", "", "" },
{ "f.album_artist, f.album_artist_sort", "f.album_artist", "f.album_artist_sort, f.album_artist" },
{ "f.album, f.album_sort", "f.album", "f.album_sort, f.album" },
{ "f.genre, f.genre", "f.genre", "f.genre" },
{ "f.composer, f.composer_sort", "f.composer", "f.composer_sort, f.composer" },
{ "f.year, f.year", "f.year", "f.year" },
{ "f.disc, f.disc", "f.disc", "f.disc" },
{ "f.track, f.track", "f.track", "f.track" },
{ "f.virtual_path, f.virtual_path", "f.virtual_path", "f.virtual_path" },
{ "f.path, f.path", "f.path", "f.path" },
};
struct enum_label {
int type;
const char *label;
};
/* Keep in sync with enum media_kind */
static const struct enum_label media_kind_labels[] =
{
{ MEDIA_KIND_MUSIC, "music" },
{ MEDIA_KIND_MOVIE, "movie" },
{ MEDIA_KIND_PODCAST, "podcast" },
{ MEDIA_KIND_AUDIOBOOK, "audiobook" },
{ MEDIA_KIND_MUSICVIDEO, "musicvideo" },
{ MEDIA_KIND_TVSHOW, "tvshow" },
};
const char *
db_media_kind_label(enum media_kind media_kind)
{
int i;
for (i = 0; i < ARRAY_SIZE(media_kind_labels); i++)
{
if (media_kind == media_kind_labels[i].type)
return media_kind_labels[i].label;
}
return NULL;
}
enum media_kind
db_media_kind_enum(const char *label)
{
int i;
if (!label)
return 0;
for (i = 0; i < ARRAY_SIZE(media_kind_labels); i++)
{
if (strcmp(label, media_kind_labels[i].label) == 0)
return media_kind_labels[i].type;
}
return 0;
}
/* Keep in sync with enum data_kind */
static char *data_kind_label[] = { "file", "url", "spotify", "pipe" };
const char *
db_data_kind_label(enum data_kind data_kind)
{
if (data_kind < ARRAY_SIZE(data_kind_label))
{
return data_kind_label[data_kind];
}
return NULL;
}
/* Keep in sync with enum scan_kind */
static const struct enum_label scan_kind_labels[] =
{
{ SCAN_KIND_UNKNOWN, "unknown" },
{ SCAN_KIND_FILES, "files" },
{ SCAN_KIND_SPOTIFY, "spotify" },
{ SCAN_KIND_RSS, "rss" },
};
const char *
db_scan_kind_label(enum scan_kind scan_kind)
{
if (scan_kind < ARRAY_SIZE(scan_kind_labels))
{
return scan_kind_labels[scan_kind].label;
}
return NULL;
}
enum scan_kind
db_scan_kind_enum(const char *name)
{
int i;
if (!name)
return 0;
for (i = 0; i < ARRAY_SIZE(scan_kind_labels); i++)
{
if (strcmp(name, scan_kind_labels[i].label) == 0)
return scan_kind_labels[i].type;
}
return 0;
}
/* Keep in sync with enum pl_type */
static char *pl_type_label[] = { "special", "folder", "smart", "plain", "rss" };
const char *
db_pl_type_label(enum pl_type pl_type)
{
if (pl_type < ARRAY_SIZE(pl_type_label))
{
return pl_type_label[pl_type];
}
return NULL;
}
/* Shuffle RNG state */
struct rng_ctx shuffle_rng;
static char *db_path;
static bool db_rating_updates;
static __thread sqlite3 *hdl;
static __thread struct db_statements db_statements;
/* Forward */
static enum group_type
db_group_type_bypersistentid(int64_t persistentid);
static int
db_query_run(char *query, int free, short update_events);
char *
db_escape_string(const char *str)
{
char *escaped;
char *ret;
escaped = sqlite3_mprintf("%q", str);
if (!escaped)
{
DPRINTF(E_LOG, L_DB, "Out of memory for escaped string\n");
return NULL;
}
ret = strdup(escaped);
sqlite3_free(escaped);
return ret;
}
// Basically a wrapper for sqlite3_mprintf()
char *
db_mprintf(const char *fmt, ...)
{
char *query;
char *ret;
va_list va;
va_start(va, fmt);
ret = sqlite3_vmprintf(fmt, va);
if (!ret)
{
DPRINTF(E_FATAL, L_MISC, "Out of memory for db_mprintf\n");
abort();
}
va_end(va);
query = strdup(ret);
sqlite3_free(ret);
return query;
}
int
db_snprintf(char *s, int n, const char *fmt, ...)
{
char *ret;
va_list va;
if (n < 2)
return -1;
// For size check since sqlite3_vsnprintf does not seem to support it
s[n - 2] = '\0';
va_start(va, fmt);
ret = sqlite3_vsnprintf(n, s, fmt, va);
va_end(va);
if (!ret || (s[n - 2] != '\0'))
return -1;
return 0;
}
void
free_pi(struct pairing_info *pi, int content_only)
{
if (!pi)
return;
free(pi->remote_id);
free(pi->name);
free(pi->guid);
if (!content_only)
free(pi);
else
memset(pi, 0, sizeof(struct pairing_info));
}
void
free_mfi(struct media_file_info *mfi, int content_only)
{
if (!mfi)
return;
free(mfi->path);
free(mfi->fname);
free(mfi->title);
free(mfi->artist);
free(mfi->album);
free(mfi->genre);
free(mfi->comment);
free(mfi->type);
free(mfi->composer);
free(mfi->orchestra);
free(mfi->conductor);
free(mfi->grouping);
free(mfi->url);
free(mfi->description);
free(mfi->codectype);
free(mfi->album_artist);
free(mfi->tv_series_name);
free(mfi->tv_episode_num_str);
free(mfi->tv_network_name);
free(mfi->title_sort);
free(mfi->artist_sort);
free(mfi->album_sort);
free(mfi->composer_sort);
free(mfi->album_artist_sort);
free(mfi->virtual_path);
free(mfi->lyrics);
if (!content_only)
free(mfi);
else
memset(mfi, 0, sizeof(struct media_file_info));
}
void
free_pli(struct playlist_info *pli, int content_only)
{
if (!pli)
return;
free(pli->title);
free(pli->query);
free(pli->path);
free(pli->virtual_path);
free(pli->query_order);
free(pli->artwork_url);
if (!content_only)
free(pli);
else
memset(pli, 0, sizeof(struct playlist_info));
}
void
free_di(struct directory_info *di, int content_only)
{
if (!di)
return;
free(di->path);
free(di->virtual_path);
if (!content_only)
free(di);
else
memset(di, 0, sizeof(struct directory_info));
}
void
free_wi(struct watch_info *wi, int content_only)
{
if (!wi)
return;
free(wi->path);
if (!content_only)
free(wi);
else
memset(wi, 0, sizeof(struct watch_info));
}
void
free_query_params(struct query_params *qp, int content_only)
{
if (!qp)
return;
free(qp->filter);
free(qp->having);
free(qp->order);
if (!content_only)
free(qp);
else
memset(qp, 0, sizeof(struct query_params));
}
void
free_queue_item(struct db_queue_item *qi, int content_only)
{
if (!qi)
return;
free(qi->path);
free(qi->virtual_path);
free(qi->title);
free(qi->artist);
free(qi->album_artist);
free(qi->composer);
free(qi->album);
free(qi->genre);
free(qi->artist_sort);
free(qi->album_sort);
free(qi->album_artist_sort);
free(qi->artwork_url);
free(qi->type);
if (!content_only)
free(qi);
else
memset(qi, 0, sizeof(struct db_queue_item));
}
// Utility function for stepping through mfi/pli/qi structs and setting the
// values from some source, which could be another struct. Some examples:
// - src is a dbmfi, dst is a qi, dst_type is DB_TYPE_INT, caller wants to own
// qi so must_strdup is true, dbmfi has strings so parse_integers is true
// - src is a **char, dst is a qi, dst_type is DB_TYPE_STRING, src_offset is 0
// because src is not a struct, caller wants to strdup the string so
// must_strdup is true
static inline void
struct_field_set_str(void *dst, const void *src, bool must_strdup)
{
char *srcstr;
char **dstptr;
srcstr = *(char **)(src);
dstptr = (char **)(dst);
*dstptr = must_strdup ? safe_strdup(srcstr) : srcstr;
}
static inline void
struct_field_set_uint32(void *dst, const void *src, bool parse_integers)
{
char *srcstr;
uint32_t srcu32val;
int ret;
if (parse_integers)
{
srcstr = *(char **)(src);
ret = safe_atou32(srcstr, &srcu32val);
if (ret < 0)
srcu32val = 0;
}
else
srcu32val = *(uint32_t *)(src);
memcpy(dst, &srcu32val, sizeof(srcu32val));
}
static inline void
struct_field_set_int64(void *dst, const void *src, bool parse_integers)
{
char *srcstr;
int64_t srci64val;
int ret;
if (parse_integers)
{
srcstr = *(char **)(src);
ret = safe_atoi64(srcstr, &srci64val);
if (ret < 0)
srci64val = 0;
}
else
srci64val = *(int64_t *)(src);
memcpy(dst, &srci64val, sizeof(srci64val));
}
static void
struct_field_from_field(void *dst_struct, ssize_t dst_offset, enum field_type dst_type, const void *src_struct, ssize_t src_offset, bool must_strdup, bool parse_integers)
{
switch (dst_type)
{
case DB_TYPE_STRING:
struct_field_set_str(dst_struct + dst_offset, src_struct + src_offset, must_strdup);
break;
case DB_TYPE_INT:
struct_field_set_uint32(dst_struct + dst_offset, src_struct + src_offset, parse_integers);
break;
case DB_TYPE_INT64:
struct_field_set_int64(dst_struct + dst_offset, src_struct + src_offset, parse_integers);
break;
}
}
static void
struct_field_from_statement(void *dst_struct, ssize_t dst_offset, enum field_type dst_type, sqlite3_stmt *stmt, int col, bool must_strdup, bool parse_integers)
{
const char *str;
uint32_t u32;
int64_t i64;
switch (dst_type)
{
case DB_TYPE_STRING:
str = (const char *)sqlite3_column_text(stmt, col);
struct_field_set_str(dst_struct + dst_offset, &str, must_strdup);
break;
case DB_TYPE_INT:
u32 = (uint32_t)sqlite3_column_int64(stmt, col); // _int64() because _int() wouldn't be enough for uint32
struct_field_set_uint32(dst_struct + dst_offset, &u32, parse_integers);
break;
case DB_TYPE_INT64:
i64 = sqlite3_column_int64(stmt, col);
struct_field_set_int64(dst_struct + dst_offset, &i64, parse_integers);
break;
}
}
static void
sort_tag_create(char **sort_tag, const char *src_tag)
{
const uint8_t *i_ptr;
const uint8_t *n_ptr;
const uint8_t *number;
uint8_t out[1024];
uint8_t *o_ptr;
int append_number;
ucs4_t puc;
int numlen;
size_t len;
int charlen;
/* Note: include terminating NUL in string length for u8_normalize */
// If the source provides a source tag then we rely on a normalized version of
// that instead of creating our own (see issue #1257). FIXME this produces the