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Exported ERR macros. Completed scopes architecture. Added defaults for {pcm,ctl,rawmidi,seq}type configuration. Fixed bogus dlclose. Implemented ncurses levelmeter (temporarily placed in src/pcm/scopes)

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This commit is contained in:
Abramo Bagnara 2001-03-07 12:36:05 +00:00
parent 8f3ae2cf2e
commit 46b52167df
14 changed files with 928 additions and 353 deletions
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52
src/control/control.c
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@ -197,6 +197,7 @@ int snd_ctl_wait(snd_ctl_t *ctl, int timeout)
int snd_ctl_open(snd_ctl_t **ctlp, const char *name)
{
const char *str;
char buf[256];
int err;
snd_config_t *ctl_conf, *conf, *type_conf;
snd_config_iterator_t i, next;
@ -229,36 +230,45 @@ int snd_ctl_open(snd_ctl_t **ctlp, const char *name)
if (err < 0)
return err;
err = snd_config_searchv(snd_config, &type_conf, "ctltype", str, 0);
snd_config_for_each(i, next, type_conf) {
snd_config_t *n = snd_config_iterator_entry(i);
const char *id = snd_config_get_id(n);
if (strcmp(id, "comment") == 0)
continue;
if (strcmp(id, "lib") == 0) {
err = snd_config_get_string(n, &lib);
if (err < 0)
return -EINVAL;
continue;
}
if (strcmp(id, "open") == 0) {
err = snd_config_get_string(n, &open);
if (err < 0)
return -EINVAL;
continue;
if (err >= 0) {
snd_config_for_each(i, next, type_conf) {
snd_config_t *n = snd_config_iterator_entry(i);
const char *id = snd_config_get_id(n);
if (strcmp(id, "comment") == 0)
continue;
if (strcmp(id, "lib") == 0) {
err = snd_config_get_string(n, &lib);
if (err < 0)
return -EINVAL;
continue;
}
if (strcmp(id, "open") == 0) {
err = snd_config_get_string(n, &open);
if (err < 0)
return -EINVAL;
continue;
}
SNDERR("Unknown field %s", id);
return -EINVAL;
}
}
if (!open)
return -EINVAL;
if (!open) {
open = buf;
snprintf(buf, sizeof(buf), "_snd_ctl_%s_open", str);
}
if (!lib)
lib = "libasound.so";
h = dlopen(lib, RTLD_NOW);
if (!h)
if (!h) {
SNDERR("Cannot open shared library %s", lib);
return -ENOENT;
}
open_func = dlsym(h, open);
dlclose(h);
if (!open_func)
if (!open_func) {
SNDERR("symbol %s is not defined inside %s", open, lib);
dlclose(h);
return -ENXIO;
}
return open_func(ctlp, name, ctl_conf);
}