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threadshare: Make sure to shutdown sockets/queues without any mutexes locked

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And make sure that the IOContext stays alive until they are fully done.
This commit is contained in:
Sebastian Dröge 2018-03-28 12:29:29 +03:00
parent b4d1145490
commit 6ebc8988b2
3 changed files with 74 additions and 33 deletions
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46
gst-plugin-threadshare/src/proxy.rs
View file

@ -426,7 +426,13 @@ impl ProxySink {
"Trying to empty pending queue"
);
let mut queue = state.queue.as_ref().unwrap().0.lock().unwrap();
let mut queue = match state.queue {
Some(ref queue) => queue.0.lock().unwrap(),
None => {
return Ok(Async::Ready(()));
}
};
let SharedQueueInner {
ref mut pending_queue,
ref queue,
@ -1161,24 +1167,38 @@ impl ProxySrc {
fn unprepare(&self, element: &Element) -> Result<(), ()> {
gst_debug!(self.cat, obj: element, "Unpreparing");
let mut state = self.state.lock().unwrap();
if let Some(ref queue) = state.queue {
let queue = queue.0.lock().unwrap();
// FIXME: The IO Context has to be alive longer than the queue,
// otherwise the queue can't finish any remaining work
let (mut queue, io_context) = {
let mut state = self.state.lock().unwrap();
if let Some(ref queue) = queue.queue {
queue.shutdown();
if let (&Some(ref pending_future_id), &Some(ref io_context)) =
(&state.pending_future_id, &state.io_context)
{
io_context.release_pending_future_id(*pending_future_id);
}
}
if let (&Some(ref pending_future_id), &Some(ref io_context)) =
(&state.pending_future_id, &state.io_context)
{
io_context.release_pending_future_id(*pending_future_id);
}
let queue = if let Some(ref queue) = state.queue.take() {
let mut queue = queue.0.lock().unwrap();
queue.queue.take()
} else {
None
};
*state = StateSrc::default();
let io_context = state.io_context.take();
*state = StateSrc::default();
(queue, io_context)
};
if let Some(ref queue) = queue.take() {
queue.shutdown();
}
drop(io_context);
gst_debug!(self.cat, obj: element, "Unprepared");
Ok(())
}

33
gst-plugin-threadshare/src/queue.rs
View file

@ -329,6 +329,10 @@ impl Queue {
..
} = *state;
if dq.is_none() {
return Ok(Async::Ready(()));
}
gst_log!(
queue.cat,
obj: &element_clone,
@ -779,19 +783,28 @@ impl Queue {
fn unprepare(&self, element: &Element) -> Result<(), ()> {
gst_debug!(self.cat, obj: element, "Unpreparing");
let mut state = self.state.lock().unwrap();
// FIXME: The IO Context has to be alive longer than the queue,
// otherwise the queue can't finish any remaining work
let (mut queue, io_context) = {
let mut state = self.state.lock().unwrap();
if let (&Some(ref pending_future_id), &Some(ref io_context)) =
(&state.pending_future_id, &state.io_context)
{
io_context.release_pending_future_id(*pending_future_id);
}
if let Some(ref queue) = state.queue {
let queue = state.queue.take();
let io_context = state.io_context.take();
*state = State::default();
(queue, io_context)
};
if let Some(ref queue) = queue.take() {
queue.shutdown();
}
if let (&Some(ref pending_future_id), &Some(ref io_context)) =
(&state.pending_future_id, &state.io_context)
{
io_context.release_pending_future_id(*pending_future_id);
}
*state = State::default();
drop(io_context);
gst_debug!(self.cat, obj: element, "Unprepared");
Ok(())

28
gst-plugin-threadshare/src/udpsrc.rs
View file

@ -607,19 +607,27 @@ impl UdpSrc {
fn unprepare(&self, element: &Element) -> Result<(), ()> {
gst_debug!(self.cat, obj: element, "Unpreparing");
let mut state = self.state.lock().unwrap();
// FIXME: The IO Context has to be alive longer than the queue,
// otherwise the queue can't finish any remaining work
let (mut socket, io_context) = {
let mut state = self.state.lock().unwrap();
if let Some(ref socket) = state.socket {
if let (&Some(ref pending_future_id), &Some(ref io_context)) =
(&state.pending_future_id, &state.io_context)
{
io_context.release_pending_future_id(*pending_future_id);
}
let socket = state.socket.take();
let io_context = state.io_context.take();
*state = State::default();
(socket, io_context)
};
if let Some(ref socket) = socket.take() {
socket.shutdown();
}
if let (&Some(ref pending_future_id), &Some(ref io_context)) =
(&state.pending_future_id, &state.io_context)
{
io_context.release_pending_future_id(*pending_future_id);
}
*state = State::default();
drop(io_context);
gst_debug!(self.cat, obj: element, "Unprepared");
Ok(())