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Add crossbeam channel router leaf example

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This commit is contained in:
Michael Mikovsky
2026-04-29 22:14:04 -06:00
parent 371f3ae492
commit 71b311065d
12 changed files with 969 additions and 31 deletions
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unshell-protocol/src/protocol/tree/endpoint/builders.rs
+18 -10
View File
@@ -281,7 +281,11 @@ impl ProtocolEndpoint {
/// ```
pub fn upsert_child_route(&mut self, route: ChildRoute) -> Result<(), EndpointError> {
self.validate_direct_child_path(&route.path)?;
if let Some(existing) = self.children.iter_mut().find(|child| child.path == route.path) {
if let Some(existing) = self
.children
.iter_mut()
.find(|child| child.path == route.path)
{
*existing = route;
} else {
self.children.push(route);
@@ -371,23 +375,27 @@ impl ProtocolEndpoint {
fn validate_direct_parent_path(&self, parent_path: &[String]) -> Result<(), EndpointError> {
let Some((_, expected_parent)) = self.path.split_last() else {
return Err(EndpointError::Validation(ValidationError::TopologyInvariant(
"root endpoints cannot declare a parent path",
)));
return Err(EndpointError::Validation(
ValidationError::TopologyInvariant("root endpoints cannot declare a parent path"),
));
};
if parent_path != expected_parent {
return Err(EndpointError::Validation(ValidationError::TopologyInvariant(
"parent path must equal the direct path prefix of this endpoint",
)));
return Err(EndpointError::Validation(
ValidationError::TopologyInvariant(
"parent path must equal the direct path prefix of this endpoint",
),
));
}
Ok(())
}
fn validate_direct_child_path(&self, child_path: &[String]) -> Result<(), EndpointError> {
if child_path.len() != self.path.len() + 1 || !child_path.starts_with(&self.path) {
return Err(EndpointError::Validation(ValidationError::TopologyInvariant(
"child path must be one direct descendant of this endpoint",
)));
return Err(EndpointError::Validation(
ValidationError::TopologyInvariant(
"child path must be one direct descendant of this endpoint",
),
));
}
Ok(())
}
unshell-protocol/src/protocol/tree/endpoint/mod.rs
+2 -2
View File
@@ -11,6 +11,6 @@ mod introspection;
mod receive;
pub use core::{
ChildRoute, Endpoint, EndpointError, EndpointOutcome, ForwardedFrame, Ingress, LeafSpec, LocalEvent,
ProtocolEndpoint,
ChildRoute, Endpoint, EndpointError, EndpointOutcome, ForwardedFrame, Ingress, LeafSpec,
LocalEvent, ProtocolEndpoint,
};