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Added context handling for snd_config_expand.

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PCM slave configuration is now dynamic.
This commit is contained in:
Jaroslav Kysela 2001-06-16 22:03:23 +00:00
parent 43455a9268
commit 1e0c53a11c
26 changed files with 259 additions and 218 deletions
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31
src/control/control.c
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@ -381,7 +381,7 @@ int snd_ctl_wait(snd_ctl_t *ctl, int timeout)
}
int snd_ctl_open_conf(snd_ctl_t **ctlp, const char *name,
snd_config_t *ctl_conf, int mode)
snd_config_t *ctl_root, snd_config_t *ctl_conf, int mode)
{
const char *str;
char buf[256];
@ -389,7 +389,7 @@ int snd_ctl_open_conf(snd_ctl_t **ctlp, const char *name,
snd_config_t *conf, *type_conf = NULL;
snd_config_iterator_t i, next;
const char *lib = NULL, *open_name = NULL;
int (*open_func)(snd_ctl_t **, const char *, snd_config_t *, int);
int (*open_func)(snd_ctl_t **, const char *, snd_config_t *, snd_config_t *, int) = NULL;
void *h;
if (snd_config_get_type(ctl_conf) != SND_CONFIG_TYPE_COMPOUND) {
if (name)
@ -408,7 +408,7 @@ int snd_ctl_open_conf(snd_ctl_t **ctlp, const char *name,
SNDERR("Invalid type for %s", snd_config_get_id(conf));
return err;
}
err = snd_config_search_definition(snd_config, "ctl_type", str, &type_conf);
err = snd_config_search_definition(ctl_root, "ctl_type", str, &type_conf);
if (err >= 0) {
if (snd_config_get_type(type_conf) != SND_CONFIG_TYPE_COMPOUND) {
SNDERR("Invalid type for CTL type %s definition", str);
@ -436,9 +436,8 @@ int snd_ctl_open_conf(snd_ctl_t **ctlp, const char *name,
continue;
}
SNDERR("Unknown field %s", id);
_err:
snd_config_delete(type_conf);
return -EINVAL;
err = -EINVAL;
goto _err;
}
}
if (!open_name) {
@ -448,20 +447,20 @@ int snd_ctl_open_conf(snd_ctl_t **ctlp, const char *name,
if (!lib)
lib = ALSA_LIB;
h = dlopen(lib, RTLD_NOW);
if (h)
open_func = dlsym(h, open_name);
if (type_conf)
snd_config_delete(type_conf);
open_func = h ? dlsym(h, open_name) : NULL;
err = 0;
if (!h) {
SNDERR("Cannot open shared library %s", lib);
return -ENOENT;
}
if (!open_func) {
err = -ENOENT;
} if (!open_func) {
SNDERR("symbol %s is not defined inside %s", open_name, lib);
dlclose(h);
return -ENXIO;
err = -ENXIO;
}
return open_func(ctlp, name, ctl_conf, mode);
_err:
if (type_conf)
snd_config_delete(type_conf);
return err >= 0 ? open_func(ctlp, name, ctl_root, ctl_conf, mode) : err;
}
int snd_ctl_open_noupdate(snd_ctl_t **ctlp, snd_config_t *root, const char *name, int mode)
@ -473,7 +472,7 @@ int snd_ctl_open_noupdate(snd_ctl_t **ctlp, snd_config_t *root, const char *name
SNDERR("Invalid CTL %s", name);
return err;
}
err = snd_ctl_open_conf(ctlp, name, ctl_conf, mode);
err = snd_ctl_open_conf(ctlp, name, root, ctl_conf, mode);
snd_config_delete(ctl_conf);
return err;
}