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Fix handling of redundant buffer creation messages on guests

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Check if the buffer already exists *before* overwriting it.
Ignore redundant registrations on remote projects.

Co-authored-by: Antonio Scandurra <antonio@zed.dev>
This commit is contained in:
Max Brunsfeld 2023-04-06 12:17:25 -07:00
parent 22a6a243bc
commit aa7918c4b5
1 changed files with 16 additions and 19 deletions
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35
crates/project/src/project.rs
View file

@ -1488,32 +1488,29 @@ impl Project {
});
let remote_id = buffer.read(cx).remote_id();
let open_buffer = if self.is_remote() || self.is_shared() {
let is_remote = self.is_remote();
let open_buffer = if is_remote || self.is_shared() {
OpenBuffer::Strong(buffer.clone())
} else {
OpenBuffer::Weak(buffer.downgrade())
};
match self.opened_buffers.insert(remote_id, open_buffer) {
None => {}
Some(OpenBuffer::Operations(operations)) => {
buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?
match self.opened_buffers.entry(remote_id) {
hash_map::Entry::Vacant(entry) => {
entry.insert(open_buffer);
}
Some(OpenBuffer::Weak(existing_handle)) => {
if existing_handle.upgrade(cx).is_some() {
debug_panic!("already registered buffer with remote id {}", remote_id);
Err(anyhow!(
"already registered buffer with remote id {}",
remote_id
))?
hash_map::Entry::Occupied(mut entry) => {
if let OpenBuffer::Operations(operations) = entry.get_mut() {
buffer.update(cx, |b, cx| b.apply_ops(operations.drain(..), cx))?;
} else if entry.get().upgrade(cx).is_some() {
if is_remote {
return Ok(());
} else {
debug_panic!("buffer {} was already registered", remote_id);
Err(anyhow!("buffer {} was already registered", remote_id))?;
}
}
}
Some(OpenBuffer::Strong(_)) => {
debug_panic!("already registered buffer with remote id {}", remote_id);
Err(anyhow!(
"already registered buffer with remote id {}",
remote_id
))?
entry.insert(open_buffer);
}
}
cx.subscribe(buffer, |this, buffer, event, cx| {