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Fixed handle_events

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This commit is contained in:
Abramo Bagnara 2001-02-11 17:46:03 +00:00
parent 8afd6e69af
commit 955b9fc335
4 changed files with 11 additions and 5 deletions
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2
src/control/control_hw.c
View file

@ -220,7 +220,7 @@ static int snd_ctl_hw_read(snd_ctl_t *handle, snd_ctl_event_t *event)
snd_ctl_hw_t *hw = handle->private_data;
ssize_t res = read(hw->fd, event, sizeof(*event));
if (res <= 0)
return res;
return -errno;
assert(res == sizeof(*event));
return 1;
}

7
src/control/hcontrol.c
View file

@ -491,17 +491,20 @@ int snd_hctl_handle_events(snd_hctl_t *hctl)
{
snd_ctl_event_t event;
int res;
unsigned int count = 0;
assert(hctl);
assert(hctl->ctl);
while ((res = snd_ctl_read(hctl->ctl, &event)) != 0) {
while ((res = snd_ctl_read(hctl->ctl, &event)) != 0 &&
res != -EAGAIN) {
if (res < 0)
return res;
res = snd_hctl_handle_event(hctl, &event);
if (res < 0)
return res;
count++;
}
return 0;
return count;
}
int snd_hctl_elem_info(snd_hctl_elem_t *elem, snd_ctl_elem_info_t *info)

5
src/mixer/mixer.c
View file

@ -200,6 +200,7 @@ int snd_mixer_detach(snd_mixer_t *mixer, const char *name)
int snd_mixer_throw_event(snd_mixer_t *mixer, snd_ctl_event_type_t event,
snd_mixer_elem_t *elem)
{
mixer->events++;
if (mixer->callback)
return mixer->callback(mixer, event, elem);
return 0;
@ -208,6 +209,7 @@ int snd_mixer_throw_event(snd_mixer_t *mixer, snd_ctl_event_type_t event,
int snd_mixer_elem_throw_event(snd_mixer_elem_t *elem,
snd_ctl_event_type_t event)
{
elem->class->mixer->events++;
if (elem->callback)
return elem->callback(elem, event);
return 0;
@ -379,6 +381,7 @@ int snd_mixer_handle_events(snd_mixer_t *mixer)
{
struct list_head *pos, *next;
assert(mixer);
mixer->events = 0;
list_for_each(pos, next, &mixer->slaves) {
int err;
snd_mixer_slave_t *s;
@ -387,6 +390,6 @@ int snd_mixer_handle_events(snd_mixer_t *mixer)
if (err < 0)
return err;
}
return 0;
return mixer->events;
}

2
src/mixer/mixer_local.h
View file

@ -65,8 +65,8 @@ struct _snd_mixer {
struct list_head slaves; /* list of all slaves */
struct list_head classes; /* list of all elem classes */
struct list_head elems; /* list of all elems */
unsigned int count;
unsigned int events;
snd_mixer_callback_t callback;
void *callback_private;
};