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ucm: compound_merge - use snd_config_merge()

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It's useful to do the full tree merge (append).

Fixes: https://github.com/alsa-project/alsa-ucm-conf/pull/92
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2021-05-24 09:51:37 +02:00
parent b623b5dfed
commit 6b72840569
1 changed files with 30 additions and 7 deletions
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37
src/ucm/ucm_include.c
View file

@ -108,6 +108,24 @@ static int find_position_node(snd_config_t **res, snd_config_t *dst,
return 0;
}
static int merge_it(snd_config_t *dst, snd_config_t *n)
{
snd_config_t *dn;
const char *id;
int err;
err = snd_config_get_id(n, &id);
if (err < 0)
return err;
err = snd_config_search(dst, id, &dn);
if (err < 0)
return err;
err = snd_config_merge(dn, n, 0); /* merge / append mode */
if (err < 0)
snd_config_delete(n);
return err;
}
static int compound_merge(const char *id,
snd_config_t *dst, snd_config_t *src,
snd_config_t *before, snd_config_t *after)
@ -133,6 +151,10 @@ static int compound_merge(const char *id,
return err;
}
/* direct merge? */
if (!_before && !_after)
return snd_config_merge(dst, src, 0); /* merge / append mode */
if (_before && _after) {
uc_error("defined both before and after identifiers in the If or Include block");
return -EINVAL;
@ -175,19 +197,19 @@ static int compound_merge(const char *id,
}
if (_before) {
err = snd_config_add_before(_before, n);
if (err == -EEXIST)
err = merge_it(dst, n);
if (err < 0)
return err;
_before = NULL;
_after = n;
} else if (_after) {
err = snd_config_add_after(_after, n);
if (err == -EEXIST)
err = merge_it(dst, n);
if (err < 0)
return err;
_after = n;
} else {
err = snd_config_add(dst, n);
if (err < 0)
return err;
}
}
@ -203,6 +225,7 @@ static int compound_merge(const char *id,
}
}
snd_config_delete(src);
return 0;
}
@ -230,16 +253,16 @@ __add:
err = snd_config_add(parent, n);
if (err < 0)
return err;
continue;
} else {
err = snd_config_search(parent, id, &parent2);
if (err == -ENOENT)
goto __add;
err = compound_merge(id, parent2, n, before, after);
if (err < 0)
if (err < 0) {
snd_config_delete(n);
return err;
}
}
snd_config_delete(n);
}
return 0;
}