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Added I/O classes
[android-x86/external-alsa-lib.git] / include / conf.h
1
2 typedef enum _snd_config_type {
3         SND_CONFIG_TYPE_INTEGER,
4         SND_CONFIG_TYPE_REAL,
5         SND_CONFIG_TYPE_STRING,
6         SND_CONFIG_TYPE_COMPOUND,
7 } snd_config_type_t;
8
9 typedef struct _snd_config snd_config_t;
10
11 struct _snd_config {
12         char *id;
13         snd_config_type_t type;
14         union {
15                 long integer;
16                 char *string;
17                 double real;
18                 struct {
19                         struct list_head fields;
20                         int join;
21                 } compound;
22         } u;
23         struct list_head list;
24         snd_config_t *father;
25 };
26
27 static inline snd_config_type_t snd_config_type(snd_config_t *config)
28 {
29         return config->type;
30 }
31
32 static inline char *snd_config_id(snd_config_t *config)
33 {
34         return config->id;
35 }
36
37 int snd_config_top(snd_config_t **config);
38
39 int snd_config_load(snd_config_t *config, snd_input_t *in);
40 int snd_config_save(snd_config_t *config, snd_output_t *out);
41
42 int snd_config_search(snd_config_t *config, char *key, snd_config_t **result);
43 int snd_config_searchv(snd_config_t *config, 
44                        snd_config_t **result, ...);
45
46 int snd_config_add(snd_config_t *config, snd_config_t *leaf);
47 int snd_config_delete(snd_config_t *config);
48
49 int snd_config_make(snd_config_t **config, char *key,
50                     snd_config_type_t type);
51 int snd_config_integer_make(snd_config_t **config, char *key);
52 int snd_config_real_make(snd_config_t **config, char *key);
53 int snd_config_string_make(snd_config_t **config, char *key);
54 int snd_config_compound_make(snd_config_t **config, char *key, int join);
55
56 int snd_config_integer_set(snd_config_t *config, long value);
57 int snd_config_real_set(snd_config_t *config, double value);
58 int snd_config_string_set(snd_config_t *config, char *value);
59 int snd_config_integer_get(snd_config_t *config, long *value);
60 int snd_config_real_get(snd_config_t *config, double *value);
61 int snd_config_string_get(snd_config_t *config, char **value);
62
63 /* One argument: long, double or char* */
64 int snd_config_set(snd_config_t *config, ...);
65 int snd_config_get(snd_config_t *config, void *);
66
67 typedef struct list_head *snd_config_iterator_t;
68
69 #define snd_config_foreach(iterator, node) \
70         assert((node)->type == SND_CONFIG_TYPE_COMPOUND); \
71         for (iterator = (node)->u.compound.fields.next; iterator != &(node)->u.compound.fields; iterator = iterator->next)
72
73 #define snd_config_entry(iterator) list_entry(iterator, snd_config_t, list)
74
75 snd_config_type_t snd_config_type(snd_config_t *config);
76 char *snd_config_id(snd_config_t *config);
77
78 extern snd_config_t *snd_config;
79 int snd_config_update();