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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/control.c
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@ -68,12 +68,22 @@ int snd_ctl_async(snd_ctl_t *ctl, int sig, pid_t pid)
return ctl->ops->async(ctl, sig, pid);
}
int snd_ctl_poll_descriptor(snd_ctl_t *ctl)
int _snd_ctl_poll_descriptor(snd_ctl_t *ctl)
{
assert(ctl);
return ctl->ops->poll_descriptor(ctl);
}
int snd_ctl_poll_descriptors(snd_ctl_t *ctl, struct pollfd *pfds, unsigned int space)
{
assert(ctl);
if (space >= 1) {
pfds->fd = ctl->ops->poll_descriptor(ctl);
pfds->events = POLLIN;
}
return 1;
}
int snd_ctl_card_info(snd_ctl_t *ctl, snd_ctl_card_info_t *info)
{
assert(ctl && info);
@ -163,8 +173,8 @@ int snd_ctl_wait(snd_ctl_t *ctl, int timeout)
{
struct pollfd pfd;
int err;
pfd.fd = snd_ctl_poll_descriptor(ctl);
pfd.events = POLLIN;
err = snd_ctl_poll_descriptors(ctl, &pfd, 1);
assert(err == 1);
err = poll(&pfd, 1, timeout);
if (err < 0)
return -errno;