ALSA project - the C library reference
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00001 00011 /* 00012 * This library is free software; you can redistribute it and/or modify 00013 * it under the terms of the GNU Lesser General Public License as 00014 * published by the Free Software Foundation; either version 2.1 of 00015 * the License, or (at your option) any later version. 00016 * 00017 * This program is distributed in the hope that it will be useful, 00018 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00019 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00020 * GNU Lesser General Public License for more details. 00021 * 00022 * You should have received a copy of the GNU Lesser General Public 00023 * License along with this library; if not, write to the Free Software 00024 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00025 * 00026 */ 00027 00028 #ifndef __ALSA_CONF_H 00029 #define __ALSA_CONF_H 00030 00031 #ifdef __cplusplus 00032 extern "C" { 00033 #endif 00034 00043 #define SND_CONFIG_DLSYM_VERSION_EVALUATE _dlsym_config_evaluate_001 00044 00045 #define SND_CONFIG_DLSYM_VERSION_HOOK _dlsym_config_hook_001 00046 00048 typedef enum _snd_config_type { 00050 SND_CONFIG_TYPE_INTEGER, 00052 SND_CONFIG_TYPE_INTEGER64, 00054 SND_CONFIG_TYPE_REAL, 00056 SND_CONFIG_TYPE_STRING, 00058 SND_CONFIG_TYPE_POINTER, 00060 SND_CONFIG_TYPE_COMPOUND = 1024 00061 } snd_config_type_t; 00062 00069 typedef struct _snd_config snd_config_t; 00077 typedef struct _snd_config_iterator *snd_config_iterator_t; 00083 typedef struct _snd_config_update snd_config_update_t; 00084 00085 extern snd_config_t *snd_config; 00086 00087 int snd_config_top(snd_config_t **config); 00088 00089 int snd_config_load(snd_config_t *config, snd_input_t *in); 00090 int snd_config_load_override(snd_config_t *config, snd_input_t *in); 00091 int snd_config_save(snd_config_t *config, snd_output_t *out); 00092 int snd_config_update(void); 00093 int snd_config_update_r(snd_config_t **top, snd_config_update_t **update, const char *path); 00094 int snd_config_update_free(snd_config_update_t *update); 00095 int snd_config_update_free_global(void); 00096 00097 int snd_config_update_ref(snd_config_t **top); 00098 void snd_config_ref(snd_config_t *top); 00099 void snd_config_unref(snd_config_t *top); 00100 00101 int snd_config_search(snd_config_t *config, const char *key, 00102 snd_config_t **result); 00103 int snd_config_searchv(snd_config_t *config, 00104 snd_config_t **result, ...); 00105 int snd_config_search_definition(snd_config_t *config, 00106 const char *base, const char *key, 00107 snd_config_t **result); 00108 00109 int snd_config_expand(snd_config_t *config, snd_config_t *root, 00110 const char *args, snd_config_t *private_data, 00111 snd_config_t **result); 00112 int snd_config_evaluate(snd_config_t *config, snd_config_t *root, 00113 snd_config_t *private_data, snd_config_t **result); 00114 00115 int snd_config_add(snd_config_t *config, snd_config_t *leaf); 00116 int snd_config_delete(snd_config_t *config); 00117 int snd_config_delete_compound_members(const snd_config_t *config); 00118 int snd_config_copy(snd_config_t **dst, snd_config_t *src); 00119 00120 int snd_config_make(snd_config_t **config, const char *key, 00121 snd_config_type_t type); 00122 int snd_config_make_integer(snd_config_t **config, const char *key); 00123 int snd_config_make_integer64(snd_config_t **config, const char *key); 00124 int snd_config_make_real(snd_config_t **config, const char *key); 00125 int snd_config_make_string(snd_config_t **config, const char *key); 00126 int snd_config_make_pointer(snd_config_t **config, const char *key); 00127 int snd_config_make_compound(snd_config_t **config, const char *key, int join); 00128 00129 int snd_config_imake_integer(snd_config_t **config, const char *key, const long value); 00130 int snd_config_imake_integer64(snd_config_t **config, const char *key, const long long value); 00131 int snd_config_imake_real(snd_config_t **config, const char *key, const double value); 00132 int snd_config_imake_string(snd_config_t **config, const char *key, const char *ascii); 00133 int snd_config_imake_safe_string(snd_config_t **config, const char *key, const char *ascii); 00134 int snd_config_imake_pointer(snd_config_t **config, const char *key, const void *ptr); 00135 00136 snd_config_type_t snd_config_get_type(const snd_config_t *config); 00137 00138 int snd_config_set_id(snd_config_t *config, const char *id); 00139 int snd_config_set_integer(snd_config_t *config, long value); 00140 int snd_config_set_integer64(snd_config_t *config, long long value); 00141 int snd_config_set_real(snd_config_t *config, double value); 00142 int snd_config_set_string(snd_config_t *config, const char *value); 00143 int snd_config_set_ascii(snd_config_t *config, const char *ascii); 00144 int snd_config_set_pointer(snd_config_t *config, const void *ptr); 00145 int snd_config_get_id(const snd_config_t *config, const char **value); 00146 int snd_config_get_integer(const snd_config_t *config, long *value); 00147 int snd_config_get_integer64(const snd_config_t *config, long long *value); 00148 int snd_config_get_real(const snd_config_t *config, double *value); 00149 int snd_config_get_ireal(const snd_config_t *config, double *value); 00150 int snd_config_get_string(const snd_config_t *config, const char **value); 00151 int snd_config_get_ascii(const snd_config_t *config, char **value); 00152 int snd_config_get_pointer(const snd_config_t *config, const void **value); 00153 int snd_config_test_id(const snd_config_t *config, const char *id); 00154 00155 snd_config_iterator_t snd_config_iterator_first(const snd_config_t *node); 00156 snd_config_iterator_t snd_config_iterator_next(const snd_config_iterator_t iterator); 00157 snd_config_iterator_t snd_config_iterator_end(const snd_config_t *node); 00158 snd_config_t *snd_config_iterator_entry(const snd_config_iterator_t iterator); 00159 00177 #define snd_config_for_each(pos, next, node) \ 00178 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)) 00179 00180 /* Misc functions */ 00181 00182 int snd_config_get_bool_ascii(const char *ascii); 00183 int snd_config_get_bool(const snd_config_t *conf); 00184 int snd_config_get_ctl_iface_ascii(const char *ascii); 00185 int snd_config_get_ctl_iface(const snd_config_t *conf); 00186 00187 /* Names functions */ 00188 00192 typedef struct snd_devname snd_devname_t; 00193 00197 struct snd_devname { 00198 char *name; 00199 char *comment; 00200 snd_devname_t *next; 00201 }; 00202 00203 int snd_names_list(const char *iface, snd_devname_t **list); 00204 void snd_names_list_free(snd_devname_t *list); 00205 00208 #ifdef __cplusplus 00209 } 00210 #endif 00211 00212 #endif /* __ALSA_CONF_H */