mirror of
https://github.com/Astatin3/unshell.git
synced 2026-06-09 06:47:59 -06:00
688 lines
23 KiB
Rust
688 lines
23 KiB
Rust
//! Stateful application-layer call runtime built on top of `ProtocolEndpoint`.
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use alloc::{string::String, vec, vec::Vec};
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use core::fmt;
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use rkyv::{Archive, Serialize, rancor::Error, to_bytes, util::AlignedVec};
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use crate::protocol::{
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CallMessage, DataMessage, FrameBytes, FrameError, HookTarget, PacketHeader, ProtocolFault,
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};
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use super::{
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Endpoint, EndpointError, HookKey, Ingress, LocalEvent, ProtocolEndpoint, ProtocolLeaf,
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};
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/// One typed incoming `Call` passed to a leaf procedure.
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///
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/// This exists so application code can work with a decoded request type plus the protocol context
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/// that matters for authorization, routing, or replies.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::{Call, HookKey};
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/// let call = Call {
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/// input: String::from("hello"),
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/// caller_path: vec!["root".into()],
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/// procedure_id: "org.example.v1.echo.invoke".into(),
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/// dst_leaf: Some("echo".into()),
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/// response_hook: Some(HookKey::new(vec!["root".into()], 7)),
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/// };
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/// assert_eq!(call.input, "hello");
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/// ```
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct Call<T> {
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/// Decoded application input payload.
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pub input: T,
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/// Endpoint path of the caller that opened this call.
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pub caller_path: Vec<String>,
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/// Canonical procedure identifier chosen by the caller.
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pub procedure_id: String,
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/// Optional destination leaf targeted by the call.
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pub dst_leaf: Option<String>,
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/// Hook key declared by the caller when it expects a response.
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pub response_hook: Option<HookKey>,
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}
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/// One incoming local call event that already passed protocol validation.
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///
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/// This exists for dispatch layers that still want direct access to the raw protocol payload
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/// before converting it into a typed [`Call<T>`].
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::{CallMessage, PacketHeader, PacketType};
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/// use unshell::protocol::tree::IncomingCall;
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/// let call = IncomingCall {
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/// header: PacketHeader {
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/// packet_type: PacketType::Call,
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/// src_path: vec!["root".into()],
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/// dst_path: vec!["worker".into()],
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/// dst_leaf: None,
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/// hook_id: None,
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/// },
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/// message: CallMessage {
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/// procedure_id: "example.invoke".into(),
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/// data: vec![],
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/// response_hook: None,
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/// },
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/// };
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/// assert_eq!(call.message.procedure_id, "example.invoke");
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/// ```
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct IncomingCall {
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/// Validated protocol header for the call.
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pub header: PacketHeader,
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/// Application payload for the call.
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pub message: CallMessage,
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}
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/// One incoming local data event tied to an active hook.
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///
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/// This exists so hook-aware leaf code receives both the payload and the resolved hook identity
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/// that owns the stream.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::{DataMessage, PacketHeader, PacketType};
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/// use unshell::protocol::tree::{HookKey, IncomingData};
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/// let data = IncomingData {
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/// header: PacketHeader {
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/// packet_type: PacketType::Data,
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/// src_path: vec!["worker".into()],
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/// dst_path: vec!["root".into()],
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/// dst_leaf: None,
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/// hook_id: Some(7),
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/// },
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/// message: DataMessage {
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/// procedure_id: "example.invoke".into(),
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/// data: vec![1],
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/// end_hook: false,
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/// },
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/// hook_key: HookKey::new(vec!["root".into()], 7),
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/// };
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/// assert_eq!(data.hook_key.hook_id, 7);
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/// ```
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct IncomingData {
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/// Validated protocol header for the data packet.
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pub header: PacketHeader,
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/// Hook-associated data payload.
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pub message: DataMessage,
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/// Resolved hook key for the active session.
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pub hook_key: HookKey,
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}
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/// One incoming local fault event tied to a pending or active hook.
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///
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/// This exists so leaf code can observe upstream protocol termination and release any
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/// application-level resources associated with the hook.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::{FaultMessage, PacketHeader, PacketType, ProtocolFault};
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/// use unshell::protocol::tree::{HookKey, IncomingFault};
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/// let fault = IncomingFault {
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/// header: PacketHeader {
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/// packet_type: PacketType::Fault,
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/// src_path: vec!["worker".into()],
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/// dst_path: vec!["root".into()],
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/// dst_leaf: None,
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/// hook_id: Some(7),
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/// },
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/// fault: FaultMessage { fault: ProtocolFault::INTERNAL_ERROR },
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/// hook_key: HookKey::new(vec!["root".into()], 7),
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/// };
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/// assert_eq!(fault.hook_key.hook_id, 7);
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/// ```
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct IncomingFault {
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/// Validated protocol header for the fault packet.
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pub header: PacketHeader,
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/// Fault payload emitted by the peer.
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pub fault: crate::protocol::FaultMessage,
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/// Hook key for the pending or active session that faulted.
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pub hook_key: HookKey,
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}
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/// Outcome of one generated initial call procedure.
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///
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/// This exists for generated one-shot leaf procedures that either emit one reply payload or
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/// intentionally complete without any returned hook traffic.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::CallResult;
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/// let reply: CallResult<String> = CallResult::Reply("hello".into());
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/// assert!(matches!(reply, CallResult::Reply(_)));
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/// ```
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub enum CallResult<T> {
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/// Return one reply payload to the caller.
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Reply(T),
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/// Complete the call without any response data.
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NoReply,
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}
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/// One hook-associated `Data` packet emitted by leaf code.
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///
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/// This exists as the normalized outbound unit produced by leaf code before the runtime turns it
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/// into framed protocol traffic.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::OutgoingData;
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/// let packet = OutgoingData {
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/// dst_path: vec!["root".into()],
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/// hook_id: 7,
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/// procedure_id: "example.invoke".into(),
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/// data: vec![1, 2, 3],
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/// end_hook: true,
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/// };
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/// assert!(packet.end_hook);
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/// ```
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct OutgoingData {
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/// Destination endpoint path for the hook packet.
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pub dst_path: Vec<String>,
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/// Hook identifier scoped to the receiving endpoint.
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pub hook_id: u64,
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/// Procedure identifier that owns this hook stream.
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pub procedure_id: String,
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/// Serialized application data to send.
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pub data: Vec<u8>,
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/// Whether this packet closes the local side of the hook.
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pub end_hook: bool,
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}
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/// One runtime-normalized reply produced by generated call dispatch.
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///
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/// This exists because generated call dispatch always normalizes leaf return values into either
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/// serialized reply bytes or an explicit “no reply” outcome.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::CallReply;
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/// let reply = CallReply::Reply(vec![1, 2, 3]);
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/// assert!(matches!(reply, CallReply::Reply(_)));
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/// ```
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub enum CallReply {
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/// Serialized reply bytes that should be returned upstream.
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Reply(Vec<u8>),
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/// Complete without emitting any reply packet.
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NoReply,
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}
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/// Error surfaced while decoding one incoming call or encoding one generated reply.
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///
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/// This exists so generated dispatch can keep decode, encode, and handler failures distinct while
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/// still using one error channel.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::{FrameError};
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/// use unshell::protocol::tree::DispatchError;
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/// let error: DispatchError<core::convert::Infallible> = DispatchError::Decode(FrameError::Truncated);
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/// assert!(matches!(error, DispatchError::Decode(_)));
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/// ```
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#[derive(Debug)]
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pub enum DispatchError<E> {
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/// Failed to decode the typed call input.
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Decode(FrameError),
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/// Failed to encode the typed call output.
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Encode(FrameError),
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/// The leaf-specific call handler returned an error.
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Handler(E),
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}
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impl<E> fmt::Display for DispatchError<E>
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where
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E: fmt::Display,
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{
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Self::Decode(error) => write!(f, "call decode failed: {error}"),
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Self::Encode(error) => write!(f, "call reply encode failed: {error}"),
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Self::Handler(error) => write!(f, "call handler failed: {error}"),
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}
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}
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}
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impl<E> core::error::Error for DispatchError<E> where E: core::error::Error + 'static {}
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/// Error surfaced by the stateful leaf runtime.
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///
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/// This exists so callers can distinguish transport/runtime failures from leaf-local business
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/// logic failures.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::{FrameError};
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/// use unshell::protocol::tree::{DispatchError, LeafRuntimeError};
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/// let error: LeafRuntimeError<core::convert::Infallible> = LeafRuntimeError::Dispatch(DispatchError::Decode(FrameError::Truncated));
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/// assert!(matches!(error, LeafRuntimeError::Dispatch(_)));
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/// ```
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#[derive(Debug)]
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pub enum LeafRuntimeError<E> {
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/// Protocol endpoint routing or framing failed.
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Endpoint(EndpointError),
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/// Typed call dispatch failed.
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Dispatch(DispatchError<E>),
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/// Leaf-local data or fault handling failed.
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Leaf(E),
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}
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impl<E> fmt::Display for LeafRuntimeError<E>
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where
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E: fmt::Display,
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{
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Self::Endpoint(error) => write!(f, "{error}"),
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Self::Dispatch(error) => write!(f, "{error}"),
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Self::Leaf(error) => write!(f, "{error}"),
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}
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}
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}
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impl<E> core::error::Error for LeafRuntimeError<E> where E: core::error::Error + 'static {}
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impl<E> From<EndpointError> for LeafRuntimeError<E> {
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fn from(value: EndpointError) -> Self {
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Self::Endpoint(value)
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}
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}
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/// High-level leaf behavior layered on top of validated protocol events.
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///
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/// This exists for leaves that want validated call/data/fault delivery without managing endpoint
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/// routing details themselves.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::CallLeaf;
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/// struct ExampleLeaf;
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/// impl unshell::protocol::tree::ProtocolLeaf for ExampleLeaf {
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/// fn leaf_name() -> String { "org.example.v1.echo".into() }
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/// }
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/// impl CallLeaf for ExampleLeaf {
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/// type Error = core::convert::Infallible;
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/// }
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/// ```
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pub trait CallLeaf: ProtocolLeaf {
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/// Leaf-specific error surfaced by call, data, or fault handling.
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type Error;
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/// Handles hook-associated inbound `Data` after protocol validation.
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fn on_data(&mut self, _data: IncomingData) -> Result<Vec<OutgoingData>, Self::Error> {
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Ok(Vec::new())
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}
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/// Observes one inbound `Fault` after protocol validation.
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fn on_fault(&mut self, _fault: IncomingFault) -> Result<(), Self::Error> {
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Ok(())
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}
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/// Polls the leaf for locally-generated hook traffic.
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fn poll(&mut self) -> Result<Vec<OutgoingData>, Self::Error> {
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Ok(Vec::new())
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}
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}
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/// Stateful runtime that combines a protocol endpoint with one leaf instance.
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///
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/// This exists as the high-level runtime for simple one-shot call procedures plus hook data/fault
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/// handling.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::LeafRuntime;
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/// # struct Leaf;
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/// # let _ = core::marker::PhantomData::<LeafRuntime<Leaf>>;
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/// ```
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#[derive(Debug)]
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pub struct LeafRuntime<L> {
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endpoint: ProtocolEndpoint,
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leaf: L,
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}
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/// Frames emitted by the runtime after one receive or poll step.
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///
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/// This exists so callers can flush emitted frames to transport while also learning whether the
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/// inbound packet was intentionally dropped.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::RuntimeOutcome;
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/// let outcome = RuntimeOutcome::default();
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/// assert!(outcome.frames.is_empty());
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/// ```
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#[derive(Debug, Default)]
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pub struct RuntimeOutcome {
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/// Frames emitted while processing the step.
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pub frames: Vec<FrameBytes>,
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/// Whether the endpoint dropped the incoming packet.
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pub dropped: bool,
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}
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impl<L> LeafRuntime<L> {
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/// Builds a runtime from one endpoint and one leaf instance.
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#[must_use]
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::{LeafRuntime, ProtocolEndpoint};
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/// struct ExampleLeaf;
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/// let runtime = LeafRuntime::new(ProtocolEndpoint::new(Vec::new(), None, Vec::new(), Vec::new()), ExampleLeaf);
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/// let _ = runtime;
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/// ```
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pub fn new(endpoint: ProtocolEndpoint, leaf: L) -> Self {
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Self { endpoint, leaf }
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}
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/// Returns the underlying protocol endpoint.
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#[must_use]
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::{LeafRuntime, ProtocolEndpoint};
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/// struct ExampleLeaf;
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/// let runtime = LeafRuntime::new(ProtocolEndpoint::new(Vec::new(), None, Vec::new(), Vec::new()), ExampleLeaf);
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/// let _endpoint = runtime.endpoint();
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/// ```
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pub fn endpoint(&self) -> &ProtocolEndpoint {
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&self.endpoint
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}
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/// Returns a mutable reference to the underlying endpoint.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::{LeafRuntime, ProtocolEndpoint};
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/// struct ExampleLeaf;
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/// let mut runtime = LeafRuntime::new(ProtocolEndpoint::new(Vec::new(), None, Vec::new(), Vec::new()), ExampleLeaf);
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/// let _endpoint = runtime.endpoint_mut();
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/// ```
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pub fn endpoint_mut(&mut self) -> &mut ProtocolEndpoint {
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&mut self.endpoint
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}
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/// Returns the hosted leaf instance.
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#[must_use]
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::{LeafRuntime, ProtocolEndpoint};
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/// struct ExampleLeaf;
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/// let runtime = LeafRuntime::new(ProtocolEndpoint::new(Vec::new(), None, Vec::new(), Vec::new()), ExampleLeaf);
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/// let _leaf = runtime.leaf();
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/// ```
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pub fn leaf(&self) -> &L {
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&self.leaf
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}
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/// Returns a mutable reference to the hosted leaf instance.
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///
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/// # Example
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/// ```rust
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/// use unshell::protocol::tree::{LeafRuntime, ProtocolEndpoint};
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/// struct ExampleLeaf;
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/// let mut runtime = LeafRuntime::new(ProtocolEndpoint::new(Vec::new(), None, Vec::new(), Vec::new()), ExampleLeaf);
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/// let _leaf = runtime.leaf_mut();
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/// ```
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pub fn leaf_mut(&mut self) -> &mut L {
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&mut self.leaf
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}
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}
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impl<L> LeafRuntime<L>
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where
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L: CallLeaf + super::CallProcedures<Error = <L as CallLeaf>::Error>,
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{
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/// Delivers one inbound frame into the stateful leaf runtime.
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///
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/// # Example
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/// ```rust
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/// # use unshell::protocol::tree::{LeafRuntime, ProtocolEndpoint};
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/// # struct ExampleLeaf;
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/// # let _ = core::marker::PhantomData::<LeafRuntime<ExampleLeaf>>;
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/// ```
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pub fn receive(
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&mut self,
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ingress: &Ingress,
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frame: FrameBytes,
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) -> Result<RuntimeOutcome, LeafRuntimeError<<L as CallLeaf>::Error>> {
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let outcome = self.endpoint.receive(ingress, frame)?;
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self.process_endpoint_outcome(outcome)
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}
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/// Polls the leaf for locally-generated hook traffic and routes any emitted frames.
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///
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/// # Example
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/// ```rust
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/// # use unshell::protocol::tree::{LeafRuntime, ProtocolEndpoint};
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/// # struct ExampleLeaf;
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/// # let _ = core::marker::PhantomData::<LeafRuntime<ExampleLeaf>>;
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/// ```
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pub fn poll(&mut self) -> Result<RuntimeOutcome, LeafRuntimeError<<L as CallLeaf>::Error>> {
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let outgoing = self.leaf.poll().map_err(LeafRuntimeError::Leaf)?;
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self.emit_outgoing(outgoing)
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}
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fn process_endpoint_outcome(
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&mut self,
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outcome: crate::protocol::tree::EndpointOutcome,
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) -> Result<RuntimeOutcome, LeafRuntimeError<<L as CallLeaf>::Error>> {
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match outcome {
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crate::protocol::tree::EndpointOutcome::Forward { frame, .. } => Ok(RuntimeOutcome {
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frames: vec![frame],
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dropped: false,
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}),
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crate::protocol::tree::EndpointOutcome::Dropped => Ok(RuntimeOutcome {
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frames: Vec::new(),
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dropped: true,
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}),
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crate::protocol::tree::EndpointOutcome::Local(event) => self.process_local_event(event),
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}
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}
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fn process_local_event(
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&mut self,
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event: LocalEvent,
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) -> Result<RuntimeOutcome, LeafRuntimeError<<L as CallLeaf>::Error>> {
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match event {
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LocalEvent::Call { header, message } => self.process_local_call(header, message),
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LocalEvent::Data {
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header,
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message,
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hook_key,
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} => self.process_local_data(header, message, hook_key),
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LocalEvent::Fault {
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header,
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message,
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hook_key,
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} => self.process_local_fault(header, message, hook_key),
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}
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}
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fn process_local_call(
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&mut self,
|
|
header: PacketHeader,
|
|
message: CallMessage,
|
|
) -> Result<RuntimeOutcome, LeafRuntimeError<<L as CallLeaf>::Error>> {
|
|
let CallMessage {
|
|
procedure_id,
|
|
data,
|
|
response_hook,
|
|
} = message;
|
|
let fault_hook = response_hook.as_ref();
|
|
let incoming = IncomingCall {
|
|
header,
|
|
// Split the payload apart so the reply path can reuse the owned procedure id and
|
|
// response hook without re-decoding the incoming bytes.
|
|
message: CallMessage {
|
|
procedure_id: procedure_id.clone(),
|
|
data,
|
|
response_hook: response_hook.clone(),
|
|
},
|
|
};
|
|
|
|
match self.leaf.dispatch_call(incoming) {
|
|
Ok(CallReply::Reply(bytes)) => {
|
|
let frames = if let Some(hook) = response_hook {
|
|
self.send_reply_data(hook, procedure_id, bytes, true)?
|
|
} else {
|
|
Vec::new()
|
|
};
|
|
Ok(RuntimeOutcome {
|
|
frames,
|
|
dropped: false,
|
|
})
|
|
}
|
|
Ok(CallReply::NoReply) => Ok(RuntimeOutcome::default()),
|
|
Err(error) => {
|
|
// Dispatch failures still emit a protocol fault for the remote caller when a
|
|
// response hook exists, even though the local runtime also surfaces the error.
|
|
let _ = self.emit_internal_fault_if_possible(fault_hook)?;
|
|
Err(LeafRuntimeError::Dispatch(error))
|
|
}
|
|
}
|
|
}
|
|
|
|
fn process_local_data(
|
|
&mut self,
|
|
header: PacketHeader,
|
|
message: DataMessage,
|
|
hook_key: HookKey,
|
|
) -> Result<RuntimeOutcome, LeafRuntimeError<<L as CallLeaf>::Error>> {
|
|
let outgoing = self
|
|
.leaf
|
|
.on_data(IncomingData {
|
|
header,
|
|
message,
|
|
hook_key,
|
|
})
|
|
.map_err(LeafRuntimeError::Leaf)?;
|
|
self.emit_outgoing(outgoing)
|
|
}
|
|
|
|
fn process_local_fault(
|
|
&mut self,
|
|
header: PacketHeader,
|
|
message: crate::protocol::FaultMessage,
|
|
hook_key: HookKey,
|
|
) -> Result<RuntimeOutcome, LeafRuntimeError<<L as CallLeaf>::Error>> {
|
|
self.leaf
|
|
.on_fault(IncomingFault {
|
|
header,
|
|
fault: message,
|
|
hook_key,
|
|
})
|
|
.map_err(LeafRuntimeError::Leaf)?;
|
|
Ok(RuntimeOutcome::default())
|
|
}
|
|
|
|
fn emit_outgoing(
|
|
&mut self,
|
|
outgoing: Vec<OutgoingData>,
|
|
) -> Result<RuntimeOutcome, LeafRuntimeError<<L as CallLeaf>::Error>> {
|
|
let mut runtime = RuntimeOutcome::default();
|
|
for packet in outgoing {
|
|
let endpoint_outcome = self.endpoint.send_data(
|
|
packet.dst_path,
|
|
packet.hook_id,
|
|
packet.procedure_id,
|
|
packet.data,
|
|
packet.end_hook,
|
|
)?;
|
|
runtime
|
|
.frames
|
|
.extend(self.process_endpoint_outcome(endpoint_outcome)?.frames);
|
|
}
|
|
Ok(runtime)
|
|
}
|
|
|
|
fn send_reply_data(
|
|
&mut self,
|
|
hook: HookTarget,
|
|
procedure_id: String,
|
|
bytes: Vec<u8>,
|
|
end_hook: bool,
|
|
) -> Result<Vec<FrameBytes>, LeafRuntimeError<<L as CallLeaf>::Error>> {
|
|
let endpoint_outcome = self.endpoint.send_data(
|
|
hook.return_path,
|
|
hook.hook_id,
|
|
procedure_id,
|
|
bytes,
|
|
end_hook,
|
|
)?;
|
|
Ok(self.process_endpoint_outcome(endpoint_outcome)?.frames)
|
|
}
|
|
|
|
fn emit_internal_fault_if_possible(
|
|
&mut self,
|
|
hook: Option<&HookTarget>,
|
|
) -> Result<Vec<FrameBytes>, LeafRuntimeError<<L as CallLeaf>::Error>> {
|
|
let Some(hook) = hook else {
|
|
return Ok(Vec::new());
|
|
};
|
|
let key = HookKey::new(hook.return_path.clone(), hook.hook_id);
|
|
let outcome = self
|
|
.endpoint
|
|
.emit_fault_if_possible(Some(key), ProtocolFault::INTERNAL_ERROR)?;
|
|
Ok(self.process_endpoint_outcome(outcome)?.frames)
|
|
}
|
|
}
|
|
|
|
/// Decodes one archived call payload into a typed application request.
|
|
///
|
|
/// This exists for generated and manual leaf code that stores its own typed `rkyv` payload inside
|
|
/// protocol `CallMessage::data` bytes.
|
|
///
|
|
/// # Example
|
|
/// ```rust
|
|
/// use rkyv::{Archive, Deserialize, Serialize};
|
|
/// use unshell::protocol::tree::{decode_call_input, encode_call_reply};
|
|
/// #[derive(Archive, Serialize, Deserialize, Debug, PartialEq)]
|
|
/// struct Example { value: u32 }
|
|
/// let bytes = encode_call_reply(&Example { value: 7 })?;
|
|
/// let decoded = decode_call_input::<Example>(&bytes)?;
|
|
/// assert_eq!(decoded, Example { value: 7 });
|
|
/// # Ok::<(), unshell::protocol::FrameError>(())
|
|
/// ```
|
|
pub fn decode_call_input<T>(bytes: &[u8]) -> Result<T, FrameError>
|
|
where
|
|
T: Archive,
|
|
<T as Archive>::Archived: rkyv::Portable
|
|
+ for<'b> rkyv::bytecheck::CheckBytes<rkyv::api::high::HighValidator<'b, Error>>
|
|
+ rkyv::Deserialize<T, rkyv::api::high::HighDeserializer<Error>>,
|
|
{
|
|
crate::protocol::deserialize_archived_bytes::<<T as Archive>::Archived, T>(bytes)
|
|
}
|
|
|
|
/// Encodes one typed application reply into hook `Data` bytes.
|
|
///
|
|
/// This exists for generated and manual leaf code that wants to place one typed `rkyv` payload in
|
|
/// the `data` field of a returned hook packet.
|
|
///
|
|
/// # Example
|
|
/// ```rust
|
|
/// use rkyv::{Archive, Deserialize, Serialize};
|
|
/// use unshell::protocol::tree::encode_call_reply;
|
|
/// #[derive(Archive, Serialize, Deserialize, Debug, PartialEq)]
|
|
/// struct Example { value: u32 }
|
|
/// let bytes = encode_call_reply(&Example { value: 7 })?;
|
|
/// assert!(!bytes.is_empty());
|
|
/// # Ok::<(), unshell::protocol::FrameError>(())
|
|
/// ```
|
|
pub fn encode_call_reply<T>(value: &T) -> Result<Vec<u8>, FrameError>
|
|
where
|
|
T: for<'a> Serialize<
|
|
rkyv::api::high::HighSerializer<AlignedVec, rkyv::ser::allocator::ArenaHandle<'a>, Error>,
|
|
>,
|
|
{
|
|
let bytes = to_bytes::<Error>(value).map_err(FrameError::Serialize)?;
|
|
Ok(bytes.as_slice().to_vec())
|
|
}
|