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More generic support for poll descriptors

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This commit is contained in:
Abramo Bagnara 2001-02-12 23:51:49 +00:00
parent a86efa083c
commit 460660d4b4
25 changed files with 162 additions and 68 deletions
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16
src/control/hcontrol.c
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@ -81,10 +81,10 @@ int snd_hctl_async(snd_hctl_t *hctl, int sig, pid_t pid)
return snd_ctl_async(hctl->ctl, sig, pid);
}
int snd_hctl_poll_descriptor(snd_hctl_t *hctl)
int snd_hctl_poll_descriptors(snd_hctl_t *hctl, struct pollfd *pfds, unsigned int space)
{
assert(hctl);
return snd_ctl_poll_descriptor(hctl->ctl);
return snd_ctl_poll_descriptors(hctl->ctl, pfds, space);
}
static int _snd_hctl_find_elem(snd_hctl_t *hctl, const snd_ctl_elem_id_t *id, int *dir)
@ -441,6 +441,18 @@ unsigned int snd_hctl_get_count(snd_hctl_t *hctl)
return hctl->count;
}
int snd_hctl_wait(snd_hctl_t *hctl, int timeout)
{
struct pollfd pfd;
int err;
err = snd_hctl_poll_descriptors(hctl, &pfd, 1);
assert(err == 1);
err = poll(&pfd, 1, timeout);
if (err < 0)
return -errno;
return 0;
}
int snd_hctl_handle_event(snd_hctl_t *hctl, snd_ctl_event_t *event)
{
snd_hctl_elem_t *elem;