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
;
44 struct rmatt_event_data
{
50 struct addatt_event_data
{
55 struct afsi_change_event_data
{
56 const struct osl_row
*aft_row
;
57 struct afs_info
*old_afsi
;
61 void (*init
)(struct afs_table
*t
);
63 int (*open
)(const char *base_dir
);
65 int (*create
)(const char *);
66 int (*event_handler
)(enum afs_events event
, struct para_buffer
*pb
,
71 enum play_mode
{PLAY_MODE_MOOD
, PLAY_MODE_PLAYLIST
};
73 struct audio_file_data
{
74 enum play_mode current_play_mode
;
75 char attributes_string
[MAXLINE
];
79 struct audio_format_info afhi
;
83 enum afs_server_code
{
88 /** Flags passed to for_each_matching_row(). */
89 enum pattern_match_flags
{
90 /** Loop in reverse order. */
92 /** If no pattern is given, loop over all rows. */
93 PM_NO_PATTERN_MATCHES_EVERYTHING
= 2,
94 /** If the data in match_column is the empty string, skip this row. */
95 PM_SKIP_EMPTY_NAME
= 4,
98 /** Structure passed to for_each_matching_row(). */
99 struct pattern_match_data
{
100 /** Loop over all rows in this table. */
101 struct osl_table
*table
;
102 /** Determines the loop order. Must be an rbtree column. */
103 unsigned loop_col_num
;
104 /** Data from this column is matched against the given patterns. */
105 unsigned match_col_num
;
106 /** \see pattern_match_flags. */
108 /** This value is passed verbatim to fnmatch(). */
110 /** Null-terminated array of patterns. */
111 struct osl_object patterns
;
112 /** Data pointer passed to the action function. */
114 /** For each matching row, this function will be called. */
115 int (*action
)(struct osl_table
*table
, struct osl_row
*row
, const char *name
, void *data
);
119 typedef int callback_function(const struct osl_object
*, struct osl_object
*);
120 __noreturn
void afs_init(uint32_t cookie
, int socket_fd
);
121 void afs_event(enum afs_events event
, struct para_buffer
*pb
,
123 int send_callback_request(callback_function
*f
, struct osl_object
*query
,
124 struct osl_object
*result
);
125 int send_standard_callback_request(int argc
, char * const * const argv
,
126 callback_function
*f
, struct osl_object
*result
);
127 int send_option_arg_callback_request(struct osl_object
*options
,
128 int argc
, char * const * const argv
, callback_function
*f
,
129 struct osl_object
*result
);
130 int stdin_command(int fd
, struct osl_object
*arg_obj
, callback_function
*f
,
131 unsigned max_len
, struct osl_object
*result
);
132 int string_compare(const struct osl_object
*obj1
, const struct osl_object
*obj2
);
133 int close_audio_file(struct audio_file_data
*afd
);
134 int for_each_matching_row(struct pattern_match_data
*pmd
);
137 void score_init(struct afs_table
*t
);
138 int admissible_file_loop(void *data
, osl_rbtree_loop_func
*func
);
139 int admissible_file_loop_reverse(void *data
, osl_rbtree_loop_func
*func
);
140 int score_get_best(struct osl_row
**aft_row
, long *score
);
141 int get_score_and_aft_row(struct osl_row
*score_row
, long *score
, struct osl_row
**aft_row
);
142 int score_add(const struct osl_row
*row
, long score
);
143 int score_update(const struct osl_row
*aft_row
, long new_score
);
144 int get_num_admissible_files(unsigned *num
);
145 int score_delete(const struct osl_row
*aft_row
);
146 int clear_score_table(void);
147 int row_belongs_to_score_table(const struct osl_row
*aft_row
, unsigned *rank
);
150 void attribute_init(struct afs_table
*t
);
151 void get_attribute_bitmap(const uint64_t *atts
, char *buf
); /* needed by com_ls() */
152 int get_attribute_bitnum_by_name(const char *att_name
, unsigned char *bitnum
);
153 int get_attribute_text(uint64_t *atts
, const char *delim
, char **text
);
156 void aft_init(struct afs_table
*t
);
157 int aft_get_row_of_path(const char *path
, struct osl_row
**row
);
158 int open_and_update_audio_file(struct osl_row
*aft_row
, struct audio_file_data
*afd
);
159 int load_afd(int shmid
, struct audio_file_data
*afd
);
160 int load_afsi(struct afs_info
*afsi
, struct osl_object
*obj
);
161 void save_afsi(struct afs_info
*afsi
, struct osl_object
*obj
);
162 int get_afsi_of_row(const struct osl_row
*row
, struct afs_info
*afsi
);
163 int get_afhi_of_row(const struct osl_row
*row
, struct audio_format_info
*afhi
);
164 int get_afsi_of_path(const char *path
, struct afs_info
*afsi
);
165 int get_audio_file_path_of_row(const struct osl_row
*row
, char **path
);
166 int get_afsi_object_of_row(const struct osl_row
*row
, struct osl_object
*obj
);
167 int audio_file_loop(void *private_data
, osl_rbtree_loop_func
*func
);
168 int aft_check_callback(const struct osl_object
*query
, struct osl_object
*result
);
171 int change_current_mood(char *mood_name
);
172 void close_current_mood(void);
173 int reload_current_mood(void);
174 int mood_check_callback(__a_unused
const struct osl_object
*query
,
175 struct osl_object
*result
);
179 int playlist_open(char *name
);
180 void playlist_close(void);
181 int playlist_update_audio_file(struct osl_row
*aft_row
);
182 int playlist_check_callback(__a_unused
const struct osl_object
*query
,
183 struct osl_object
*result
);
185 /** evaluates to 1 if x < y, to -1 if x > y and to 0 if x == y */
186 #define NUM_COMPARE(x, y) ((int)((x) < (y)) - (int)((x) > (y)))
189 #define DECLARE_BLOB_SYMBOLS(table_name, cmd_prefix) \
190 void table_name ## _init(struct afs_table *t); \
191 int cmd_prefix ## _get_name_by_id(uint32_t id, char **name); \
192 int cmd_prefix ## _get_def_by_id(uint32_t id, struct osl_object *def); \
193 int cmd_prefix ## _get_def_by_name(char *name, struct osl_object *def); \
194 int cmd_prefix ## _get_name_and_def_by_row(const struct osl_row *row, \
195 char **name, struct osl_object *def); \
196 int table_name ##_event_handler(enum afs_events event, \
197 struct para_buffer *pb, void *data); \
198 extern struct osl_table *table_name ## _table;
200 DECLARE_BLOB_SYMBOLS(lyrics
, lyr
);
201 DECLARE_BLOB_SYMBOLS(images
, img
);
202 DECLARE_BLOB_SYMBOLS(moods
, mood
);
203 DECLARE_BLOB_SYMBOLS(playlists
, pl
);
205 /** The columns of an abstract blob table. */
206 enum blob_table_columns
{
207 /** The identifier, a positive integer that never repeats. */
209 /** The unique name of the blob. */
211 /** The actual blob contents. */
213 /** A blob table has that many columns. */
217 #define DEFINE_BLOB_TABLE_DESC(table_name) \
218 struct osl_table_description table_name ## _table_desc = { \
219 .name = #table_name, \
220 .num_columns = NUM_BLOB_COLUMNS, \
221 .flags = OSL_LARGE_TABLE, \
222 .column_descriptions = blob_cols \
225 #define DEFINE_BLOB_TABLE_PTR(table_name) struct osl_table *table_name ## _table;
227 #define INIT_BLOB_TABLE(table_name) \
228 DEFINE_BLOB_TABLE_DESC(table_name); \
229 DEFINE_BLOB_TABLE_PTR(table_name);