conf.h

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/*
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as
 *   published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */
 
#if !defined(__ASOUNDLIB_H) && !defined(ALSA_LIBRARY_BUILD)
/* don't use ALSA_LIBRARY_BUILD define in sources outside alsa-lib */
#include <alsa/asoundlib.h>
#endif
 
#ifndef __ALSA_CONF_H
#define __ALSA_CONF_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define SND_CONFIG_DLSYM_VERSION_EVALUATE   _dlsym_config_evaluate_001
#define SND_CONFIG_DLSYM_VERSION_HOOK       _dlsym_config_hook_001
 
typedef enum _snd_config_type {
        SND_CONFIG_TYPE_INTEGER,
        SND_CONFIG_TYPE_INTEGER64,
        SND_CONFIG_TYPE_REAL,
        SND_CONFIG_TYPE_STRING,
        SND_CONFIG_TYPE_POINTER,
    SND_CONFIG_TYPE_COMPOUND = 1024
} snd_config_type_t;
 
typedef struct _snd_config snd_config_t;
typedef struct _snd_config_iterator *snd_config_iterator_t;
typedef struct _snd_config_update snd_config_update_t;
 
extern snd_config_t *snd_config;
 
const char *snd_config_topdir(void);
 
int snd_config_top(snd_config_t **config);
 
int snd_config_load(snd_config_t *config, snd_input_t *in);
int snd_config_load_string(snd_config_t **config, const char *s, size_t size);
int snd_config_load_override(snd_config_t *config, snd_input_t *in);
int snd_config_save(snd_config_t *config, snd_output_t *out);
int snd_config_update(void);
int snd_config_update_r(snd_config_t **top, snd_config_update_t **update, const char *path);
int snd_config_update_free(snd_config_update_t *update);
int snd_config_update_free_global(void);
 
int snd_config_update_ref(snd_config_t **top);
void snd_config_ref(snd_config_t *top);
void snd_config_unref(snd_config_t *top);
 
int snd_config_search(snd_config_t *config, const char *key,
              snd_config_t **result);
int snd_config_searchv(snd_config_t *config, 
               snd_config_t **result, ...);
int snd_config_search_definition(snd_config_t *config,
                 const char *base, const char *key,
                 snd_config_t **result);
 
typedef int (*snd_config_expand_fcn_t)(snd_config_t **dst, const char *s, void *private_data);
 
int snd_config_expand_custom(snd_config_t *config, snd_config_t *root,
                 snd_config_expand_fcn_t fcn, void *private_data,
                 snd_config_t **result);
int snd_config_expand(snd_config_t *config, snd_config_t *root,
              const char *args, snd_config_t *private_data,
              snd_config_t **result);
int snd_config_evaluate(snd_config_t *config, snd_config_t *root,
            snd_config_t *private_data, snd_config_t **result);
int snd_config_evaluate_string(snd_config_t **dst, const char *s,
                   snd_config_expand_fcn_t fcn, void *private_data);
 
int snd_config_add(snd_config_t *config, snd_config_t *child);
int snd_config_add_before(snd_config_t *before, snd_config_t *child);
int snd_config_add_after(snd_config_t *after, snd_config_t *child);
int snd_config_remove(snd_config_t *config);
int snd_config_delete(snd_config_t *config);
int snd_config_delete_compound_members(const snd_config_t *config);
int snd_config_copy(snd_config_t **dst, snd_config_t *src);
int snd_config_substitute(snd_config_t *dst, snd_config_t *src);
int snd_config_merge(snd_config_t *dst, snd_config_t *src, int override);
 
int snd_config_make(snd_config_t **config, const char *key,
            snd_config_type_t type);
int snd_config_make_integer(snd_config_t **config, const char *key);
int snd_config_make_integer64(snd_config_t **config, const char *key);
int snd_config_make_real(snd_config_t **config, const char *key);
int snd_config_make_string(snd_config_t **config, const char *key);
int snd_config_make_pointer(snd_config_t **config, const char *key);
int snd_config_make_compound(snd_config_t **config, const char *key, int join);
int snd_config_make_path(snd_config_t **config, snd_config_t *root, const char *key,
             int join, int override);
 
int snd_config_imake_integer(snd_config_t **config, const char *key, const long value);
int snd_config_imake_integer64(snd_config_t **config, const char *key, const long long value);
int snd_config_imake_real(snd_config_t **config, const char *key, const double value);
int snd_config_imake_string(snd_config_t **config, const char *key, const char *ascii);
int snd_config_imake_safe_string(snd_config_t **config, const char *key, const char *ascii);
int snd_config_imake_pointer(snd_config_t **config, const char *key, const void *ptr);
 
snd_config_type_t snd_config_get_type(const snd_config_t *config);
int snd_config_is_array(const snd_config_t *config);
int snd_config_is_empty(const snd_config_t *config);
 
int snd_config_set_id(snd_config_t *config, const char *id);
int snd_config_set_integer(snd_config_t *config, long value);
int snd_config_set_integer64(snd_config_t *config, long long value);
int snd_config_set_real(snd_config_t *config, double value);
int snd_config_set_string(snd_config_t *config, const char *value);
int snd_config_set_ascii(snd_config_t *config, const char *ascii);
int snd_config_set_pointer(snd_config_t *config, const void *ptr);
int snd_config_get_id(const snd_config_t *config, const char **value);
int snd_config_get_integer(const snd_config_t *config, long *value);
int snd_config_get_integer64(const snd_config_t *config, long long *value);
int snd_config_get_real(const snd_config_t *config, double *value);
int snd_config_get_ireal(const snd_config_t *config, double *value);
int snd_config_get_string(const snd_config_t *config, const char **value);
int snd_config_get_ascii(const snd_config_t *config, char **value);
int snd_config_get_pointer(const snd_config_t *config, const void **value);
int snd_config_test_id(const snd_config_t *config, const char *id);
 
snd_config_iterator_t snd_config_iterator_first(const snd_config_t *node);
snd_config_iterator_t snd_config_iterator_next(const snd_config_iterator_t iterator);
snd_config_iterator_t snd_config_iterator_end(const snd_config_t *node);
snd_config_t *snd_config_iterator_entry(const snd_config_iterator_t iterator);
 
#define snd_config_for_each(pos, next, node) \
    for (pos = snd_config_iterator_first(node), next = snd_config_iterator_next(pos); pos != snd_config_iterator_end(node); pos = next, next = snd_config_iterator_next(pos))
 
/* Misc functions */
 
int snd_config_get_bool_ascii(const char *ascii);
int snd_config_get_bool(const snd_config_t *conf);
int snd_config_get_card(const snd_config_t *conf);
int snd_config_get_ctl_iface_ascii(const char *ascii);
int snd_config_get_ctl_iface(const snd_config_t *conf);
 
/* Names functions */
 
typedef struct snd_devname snd_devname_t;
 
struct snd_devname {
    char *name; 
    char *comment;  
    snd_devname_t *next;    
};
 
int snd_names_list(const char *iface, snd_devname_t **list);
void snd_names_list_free(snd_devname_t *list);
 
#ifdef __cplusplus
}
#endif
 
#endif /* __ALSA_CONF_H */