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0.3.15-pre.015

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SinuS von SifriduS
2026-09-18 21:06:58 +02:00
parent b266019ea8
commit 582a286baa
9 changed files with 323 additions and 54 deletions
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46
crates/ksp-onchain-transport-lib/src/grpc_stream.rs
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@@ -1,5 +1,5 @@
// file: crates/ksp-onchain-transport-lib/src/grpc_stream.rs
// version: 5
// version: 6
use tonic_prost::prost::Message; // rust-rules: trait-import
@@ -296,8 +296,9 @@ impl SolanaYellowstoneGrpcSubscribeSession {
/// Receives the next decoded standard Yellowstone update.
///
/// Transient remote stream loss is hidden while KSP performs a bounded reconnect. Terminal remote statuses after the reconnect budget, malformed updates
/// and overflow surface a safe KSP error. A normal close returns `Ok(None)`.
/// Transient remote stream loss is hidden while KSP performs a bounded reconnect. A full bounded update queue applies asynchronous backpressure to the
/// gRPC stream instead of dropping an update or terminating locally; terminal remote statuses after the reconnect budget and malformed updates still
/// surface a safe KSP error. A normal close returns `Ok(None)`.
pub async fn next_update(&mut self) -> ksp_core_lib::Result<std::option::Option<crate::YellowstoneSubscribeUpdate>> {
return match self.update_rx.recv().await {
std::option::Option::Some(std::result::Result::Ok(update)) => std::result::Result::Ok(std::option::Option::Some(update)),
@@ -635,23 +636,30 @@ async fn run_subscribe_actor(
}
tracker.observe(&update, &mut snapshot);
snapshot_tx.send_replace(snapshot);
match update_tx.try_send(std::result::Result::Ok(update)) {
std::result::Result::Ok(()) => {},
std::result::Result::Err(tokio::sync::mpsc::error::TrySendError::Full(_)) => {
ksp_logging_lib::warn!(
target: crate::TRACING_TARGET,
endpoint_name = endpoint_name.as_str(),
provider = provider.as_str(),
cluster = cluster.as_str(),
"Yellowstone subscribe update queue overflowed"
);
fail_actor(crate::ERROR_CODE_GRPC_BACKPRESSURE_OVERFLOW, &request_state, &mut snapshot, &snapshot_tx);
let delivery = tokio::select! {
biased;
shutdown_changed = shutdown_rx.changed() => {
let deadline = shutdown_deadline(&shutdown_rx, shutdown_changed);
snapshot.state = crate::YellowstoneGrpcSubscribeState::Closing;
snapshot_tx.send_replace(snapshot);
clear_request_sender(&request_state);
finish_client_half_close(
&endpoint_name,
&provider,
&cluster,
&mut incoming,
deadline,
&mut snapshot,
&snapshot_tx,
)
.await;
return;
},
std::result::Result::Err(tokio::sync::mpsc::error::TrySendError::Closed(_)) => {
close_actor(&request_state, &mut snapshot, &snapshot_tx);
return;
},
}
result = update_tx.send(std::result::Result::Ok(update)) => result,
};
if delivery.is_err() {
close_actor(&request_state, &mut snapshot, &snapshot_tx);
return;
}
},
std::result::Result::Ok(std::option::Option::None) => {