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poll: remove threads from alsa-sink

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Remove the thread from alsa sink and use the pollfd event.
Make it possible to pass multiple fds in one pollfd event
Add 3 callbacks to the pollfd event and add support for timeouts
This commit is contained in:
Wim Taymans 2016-07-08 12:18:01 +02:00
parent ac59fa9371
commit 5fa334a89b
10 changed files with 313 additions and 202 deletions
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24
spa/plugins/v4l2/v4l2-utils.c
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@ -343,7 +343,6 @@ mmap_read (SpaV4l2Source *this)
return -1;
}
}
fprintf (stderr, "captured buffer %d\n", buf.index);
b = &state->buffers[buf.index];
b->next = state->ready;
@ -353,10 +352,10 @@ mmap_read (SpaV4l2Source *this)
return 0;
}
static void
v4l2_on_fd_events (void *user_data)
static int
v4l2_on_fd_events (SpaPollNotifyData *data)
{
SpaV4l2Source *this = user_data;
SpaV4l2Source *this = data->user_data;
SpaEvent event;
mmap_read (this);
@ -368,6 +367,8 @@ v4l2_on_fd_events (void *user_data)
event.size = 0;
event.data = NULL;
this->event_cb (&this->handle, &event, this->user_data);
return 0;
}
static void
@ -386,8 +387,6 @@ v4l2_buffer_free (void *data)
b->buffer.refcount = 1;
b->outstanding = false;
fprintf (stderr, "queue buffer %d\n", buf.index);
if (xioctl (state->fd, VIDIOC_QBUF, &buf) < 0) {
perror ("VIDIOC_QBUF");
}
@ -523,10 +522,15 @@ spa_v4l2_start (SpaV4l2Source *this)
event.data = &state->poll;
event.size = sizeof (state->poll);
state->poll.fd = state->fd;
state->poll.events = POLLIN | POLLPRI | POLLERR;
state->poll.revents = 0;
state->poll.callback = v4l2_on_fd_events;
state->fds[0].fd = state->fd;
state->fds[0].events = POLLIN | POLLPRI | POLLERR;
state->fds[0].revents = 0;
state->poll.fds = state->fds;
state->poll.n_fds = 1;
state->poll.idle_cb = NULL;
state->poll.before_cb = NULL;
state->poll.after_cb = v4l2_on_fd_events;
state->poll.user_data = this;
this->event_cb (&this->handle, &event, this->user_data);