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Simplify handling of syncing versions

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Currently whenever a channel changes we send a huge amount of data to
each member. This is the first step in reducing that

Co-Authored-By: Max <max@zed.dev>
Co-Authored-By: bennetbo <bennetbo@gmx.de>
This commit is contained in:
Conrad Irwin 2024-01-25 15:39:55 -07:00
parent b72c037199
commit 716221cd38
13 changed files with 209 additions and 404 deletions
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61
crates/collab/src/db/queries/buffers.rs
View file

@ -748,18 +748,11 @@ impl Database {
.await
}
pub async fn unseen_channel_buffer_changes(
pub async fn latest_channel_buffer_changes(
&self,
user_id: UserId,
channel_ids: &[ChannelId],
tx: &DatabaseTransaction,
) -> Result<Vec<proto::UnseenChannelBufferChange>> {
#[derive(Debug, Clone, Copy, EnumIter, DeriveColumn)]
enum QueryIds {
ChannelId,
Id,
}
) -> Result<Vec<proto::ChannelBufferVersion>> {
let mut channel_ids_by_buffer_id = HashMap::default();
let mut rows = buffer::Entity::find()
.filter(buffer::Column::ChannelId.is_in(channel_ids.iter().copied()))
@ -771,51 +764,23 @@ impl Database {
}
drop(rows);
let mut observed_edits_by_buffer_id = HashMap::default();
let mut rows = observed_buffer_edits::Entity::find()
.filter(observed_buffer_edits::Column::UserId.eq(user_id))
.filter(
observed_buffer_edits::Column::BufferId
.is_in(channel_ids_by_buffer_id.keys().copied()),
)
.stream(&*tx)
.await?;
while let Some(row) = rows.next().await {
let row = row?;
observed_edits_by_buffer_id.insert(row.buffer_id, row);
}
drop(rows);
let latest_operations = self
.get_latest_operations_for_buffers(channel_ids_by_buffer_id.keys().copied(), &*tx)
.await?;
let mut changes = Vec::default();
for latest in latest_operations {
if let Some(observed) = observed_edits_by_buffer_id.get(&latest.buffer_id) {
if (
observed.epoch,
observed.lamport_timestamp,
observed.replica_id,
) >= (latest.epoch, latest.lamport_timestamp, latest.replica_id)
{
continue;
}
}
if let Some(channel_id) = channel_ids_by_buffer_id.get(&latest.buffer_id) {
changes.push(proto::UnseenChannelBufferChange {
channel_id: channel_id.to_proto(),
epoch: latest.epoch as u64,
Ok(latest_operations
.iter()
.flat_map(|op| {
Some(proto::ChannelBufferVersion {
channel_id: channel_ids_by_buffer_id.get(&op.buffer_id)?.to_proto(),
epoch: op.epoch as u64,
version: vec![proto::VectorClockEntry {
replica_id: latest.replica_id as u32,
timestamp: latest.lamport_timestamp as u32,
replica_id: op.replica_id as u32,
timestamp: op.lamport_timestamp as u32,
}],
});
}
}
Ok(changes)
})
})
.collect())
}
/// Returns the latest operations for the buffers with the specified IDs.