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Changed behaviour of poll_descriptors function (returns the filled count of fds).

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Added poll_descriptors_count functions.
Added snd_mixer_elem_count function.
This commit is contained in:
Jaroslav Kysela 2001-02-14 12:15:03 +00:00
parent c71b72ee27
commit cc956312b3
11 changed files with 82 additions and 7 deletions
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13
src/control/control.c
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@ -74,14 +74,23 @@ int _snd_ctl_poll_descriptor(snd_ctl_t *ctl)
return ctl->ops->poll_descriptor(ctl);
}
int snd_ctl_poll_descriptors_count(snd_ctl_t *ctl, unsigned int *count)
{
assert(ctl);
assert(count);
*count = 1;
return 0;
}
int snd_ctl_poll_descriptors(snd_ctl_t *ctl, struct pollfd *pfds, unsigned int space)
{
assert(ctl);
if (space >= 1) {
if (space > 0) {
pfds->fd = ctl->ops->poll_descriptor(ctl);
pfds->events = POLLIN;
return 1;
}
return 1;
return 0;
}
int snd_ctl_subscribe_events(snd_ctl_t *ctl, int subscribe)