mirrors/alsa-lib
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-lib.git synced 2025-10-29 05:40:25 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

conf: add snd_config_is_array() function

Browse source 
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2020-05-08 12:00:42 +02:00
parent 05a6effd8d
commit 0c99c073d3
2 changed files with 40 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/conf.h
View file

@ -139,6 +139,7 @@ int snd_config_imake_safe_string(snd_config_t **config, const char *key, const c
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_set_id(snd_config_t *config, const char *id);
int snd_config_set_integer(snd_config_t *config, long value);

39
src/conf.c
View file

@ -1784,6 +1784,45 @@ snd_config_type_t snd_config_get_type(const snd_config_t *config)
return config->type;
}
static int check_array_item(const char *id, int index)
{
const char *p;
long val;
for (p = id; *p; p++) {
if (*p < '0' || *p > '9')
return 0;
}
if (safe_strtol(id, &val))
return 0;
return val == index;
}
/**
* \brief Returns if the compound is an array.
* \param config Handle to the configuration node.
* \return A positive value when true, zero when false, otherwise a negative error code.
*/
int snd_config_is_array(const snd_config_t *config)
{
int idx;
snd_config_iterator_t i, next;
snd_config_t *node;
assert(config);
if (config->type != SND_CONFIG_TYPE_COMPOUND)
return -EINVAL;
idx = 0;
snd_config_for_each(i, next, config) {
node = snd_config_iterator_entry(i);
if (!check_array_item(node->id, idx))
return 0;
idx++;
}
return 1;
}
/**
* \brief Returns the id of a configuration node.
* \param[in] config Handle to the configuration node.