2 * Copyright (C) 2007 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file afs.h Exported symbos of the audio file selector. */
13 /** Audio file selector data stored in the audio file table. */
15 /** Seconds since the epoch. */
17 /** Bit field of set attributes. */
19 /** Counts how many times the file was selected. */
21 /** Image blob associated with this file (foreign key). */
23 /** Lyrics blob associated with this file (foreign key). */
25 /** Mp3, ogg or aac. */
26 uint8_t audio_format_id
;
29 enum afs_table_flags
{TBLFLAG_SKIP_CREATE
};
32 const struct osl_table_description
*desc
;
33 enum afs_table_flags flags
;
36 enum play_mode
{PLAY_MODE_MOOD
, PLAY_MODE_PLAYLIST
};
38 struct audio_file_data
{
39 enum play_mode current_play_mode
;
42 struct audio_format_info afhi
;
44 struct osl_object map
;
47 /** Flags passed to for_each_matching_row(). */
48 enum pattern_match_flags
{
49 /** Loop in reverse order. */
51 /** If no pattern is given, loop over all rows. */
52 PM_NO_PATTERN_MATCHES_EVERYTHING
= 2,
53 /** If the data in match_column is the empty string, skip this row. */
54 PM_SKIP_EMPTY_NAME
= 4,
57 /** Structure passed to for_each_matching_row(). */
58 struct pattern_match_data
{
59 /** Loop over all rows in this table. */
60 struct osl_table
*table
;
61 /** Determines the loop order. Must be an rbtree column. */
62 unsigned loop_col_num
;
63 /** Data from this column is matched against the given patterns. */
64 unsigned match_col_num
;
65 /** \see pattern_match_flags. */
67 /** This value is passed verbatim to fnmatch(). */
69 /** Null-terminated array of patterns. */
70 struct osl_object patterns
;
71 /** Data pointer passed to the action function. */
73 /** For each matching row, this function will be called. */
74 int (*action
)(struct osl_table
*table
, struct osl_row
*row
, const char *name
, void *data
);
78 typedef int callback_function(const struct osl_object
*, struct osl_object
*);
79 __noreturn
void afs_init(uint32_t cookie
, int socket_fd
);
80 int send_callback_request(callback_function
*f
, struct osl_object
*query
,
81 struct osl_object
*result
);
82 int send_standard_callback_request(int argc
, char * const * const argv
,
83 callback_function
*f
, struct osl_object
*result
);
84 int send_option_arg_callback_request(struct osl_object
*options
,
85 int argc
, char * const * const argv
, callback_function
*f
,
86 struct osl_object
*result
);
87 int stdin_command(int fd
, struct osl_object
*arg_obj
, callback_function
*f
,
88 unsigned max_len
, struct osl_object
*result
);
89 int string_compare(const struct osl_object
*obj1
, const struct osl_object
*obj2
);
90 int open_next_audio_file(struct audio_file_data
*afd
);
91 int close_audio_file(struct audio_file_data
*afd
);
92 int for_each_matching_row(struct pattern_match_data
*pmd
);
95 int score_init(struct table_info
*ti
, const char *db
);
96 void score_shutdown(enum osl_close_flags flags
);
97 int admissible_file_loop(void *data
, osl_rbtree_loop_func
*func
);
98 int admissible_file_loop_reverse(void *data
, osl_rbtree_loop_func
*func
);
99 int score_get_best(struct osl_row
**aft_row
, long *score
);
100 int get_score_and_aft_row(struct osl_row
*score_row
, long *score
, struct osl_row
**aft_row
);
101 int score_add(const struct osl_row
*row
, long score
);
102 int score_update(const struct osl_row
*aft_row
, long new_score
);
103 int get_num_admissible_files(unsigned *num
);
104 int score_delete(const struct osl_row
*aft_row
);
105 int row_belongs_to_score_table(const struct osl_row
*aft_row
);
108 int attribute_init(struct table_info
*ti
, const char *db
);
109 void attribute_shutdown(enum osl_close_flags flags
);
110 void get_attribute_bitmap(const uint64_t *atts
, char *buf
); /* needed by com_ls() */
111 int get_attribute_bitnum_by_name(const char *att_name
, unsigned char *bitnum
);
112 int get_attribute_text(uint64_t *atts
, const char *delim
, char **text
);
115 int aft_init(struct table_info
*ti
, const char *db
);
116 void aft_shutdown(enum osl_close_flags flags
);
117 int aft_get_row_of_path(const char *path
, struct osl_row
**row
);
118 int open_and_update_audio_file(struct osl_row
*aft_row
, struct audio_file_data
*afd
);
119 int load_afsi(struct afs_info
*afsi
, struct osl_object
*obj
);
120 void save_afsi(struct afs_info
*afsi
, struct osl_object
*obj
);
121 int get_afsi_of_row(const struct osl_row
*row
, struct afs_info
*afsi
);
122 int get_afhi_of_row(const struct osl_row
*row
, struct audio_format_info
*afhi
);
123 int get_afsi_of_path(const char *path
, struct afs_info
*afsi
);
124 int get_audio_file_path_of_row(const struct osl_row
*row
, char **path
);
125 int get_afsi_object_of_row(const struct osl_row
*row
, struct osl_object
*obj
);
126 int audio_file_loop(void *private_data
, osl_rbtree_loop_func
*func
);
127 int aft_check_callback(const struct osl_object
*query
, struct osl_object
*result
);
130 int change_current_mood(char *mood_name
);
131 void close_current_mood(void);
132 int mood_update_audio_file(const struct osl_row
*aft_row
, struct afs_info
*old_afsi
);
133 int reload_current_mood(void);
134 int mood_delete_audio_file(const struct osl_row
*aft_row
);
135 int mood_check_callback(__a_unused
const struct osl_object
*query
,
136 struct osl_object
*result
);
140 int playlist_open(char *name
);
141 void playlist_close(void);
142 int playlist_update_audio_file(struct osl_row
*aft_row
);
143 int playlist_check_callback(__a_unused
const struct osl_object
*query
,
144 struct osl_object
*result
);
146 /** evaluates to 1 if x < y, to -1 if x > y and to 0 if x == y */
147 #define NUM_COMPARE(x, y) ((int)((x) < (y)) - (int)((x) > (y)))
150 #define DECLARE_BLOB_SYMBOLS(table_name, cmd_prefix) \
151 int table_name ## _init(struct table_info *ti, const char *db); \
152 void table_name ## _shutdown(enum osl_close_flags flags); \
153 int cmd_prefix ## _get_name_by_id(uint32_t id, char **name); \
154 int cmd_prefix ## _get_def_by_id(uint32_t id, struct osl_object *def); \
155 int cmd_prefix ## _get_name_and_def_by_row(const struct osl_row *row, \
156 char **name, struct osl_object *def); \
157 extern struct osl_table *table_name ## _table;
159 DECLARE_BLOB_SYMBOLS(lyrics
, lyr
);
160 DECLARE_BLOB_SYMBOLS(images
, img
);
161 DECLARE_BLOB_SYMBOLS(moods
, mood
);
162 DECLARE_BLOB_SYMBOLS(playlists
, pl
);
164 /** The columns of an abstract blob table. */
165 enum blob_table_columns
{
166 /** The identifier, a positive integer that never repeats. */
168 /** The unique name of the blob. */
170 /** The actual blob contents. */
172 /** A blob table has that many columns. */
176 #define DEFINE_BLOB_TABLE_DESC(table_name) \
177 struct osl_table_description table_name ## _table_desc = { \
178 .name = #table_name, \
179 .num_columns = NUM_BLOB_COLUMNS, \
180 .flags = OSL_LARGE_TABLE, \
181 .column_descriptions = blob_cols \
184 #define DEFINE_BLOB_TABLE_PTR(table_name) struct osl_table *table_name ## _table;
186 #define INIT_BLOB_TABLE(table_name) \
187 DEFINE_BLOB_TABLE_DESC(table_name); \
188 DEFINE_BLOB_TABLE_PTR(table_name);