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script: Don't panic when IPC WebRender APIs fail during shutdown.

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This commit is contained in:
Josh Matthews 2020-06-09 15:52:03 -04:00
parent c88bea8d93
commit 125bfceafd
2 changed files with 11 additions and 5 deletions
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10
components/script/dom/htmlmediaelement.rs
View file

@ -213,7 +213,10 @@ impl VideoFrameRenderer for MediaFrameRenderer {
Some((ref mut image_key, ref mut width, ref mut height)) => {
self.old_frame = Some(*image_key);
let new_image_key = self.api.generate_image_key();
let new_image_key = match self.api.generate_image_key() {
Ok(key) => key,
Err(()) => return,
};
/* update current_frame */
*image_key = new_image_key;
@ -243,7 +246,10 @@ impl VideoFrameRenderer for MediaFrameRenderer {
updates.push(ImageUpdate::AddImage(new_image_key, descriptor, image_data));
},
None => {
let image_key = self.api.generate_image_key();
let image_key = match self.api.generate_image_key() {
Ok(key) => key,
Err(()) => return,
};
self.current_frame = Some((image_key, frame.get_width(), frame.get_height()));
let image_data = if frame.is_gl_texture() && self.player_id.is_some() {

6
components/script_traits/lib.rs
View file

@ -1195,12 +1195,12 @@ impl WebrenderIpcSender {
}
/// Create a new image key. Blocks until the key is available.
pub fn generate_image_key(&self) -> ImageKey {
pub fn generate_image_key(&self) -> Result<ImageKey, ()> {
let (sender, receiver) = ipc::channel().unwrap();
self.0
.send(WebrenderMsg::GenerateImageKey(sender))
.expect("error sending image key generation");
receiver.recv().expect("error receiving image key result")
.map_err(|_| ())?;
receiver.recv().map_err(|_| ())
}
/// Perform a resource update operation.