Crate gbp_core 

Core type vocabulary for the Group Broadcast Protocol (GBP) stack.

This crate has no external dependencies beyond core/alloc and is the shared foundation for every other crate in the stack:

• StreamType — the four stream classes defined by GBP.
• GbpFlags — frame delivery flag constants.
• NodeState, TransitionState, SubprotocolState — finite state machines from the state-machine specification.
• ControlOpcode — the control plane opcode registry.
• SignalType — the GSP signal opcode registry.
• ErrorClass and codes — the error registry.
• Type aliases for GroupId, MemberId, Epoch, TransitionId, StreamId and SequenceNo.

These types intentionally carry no I/O, no serialization and no crypto so that the higher layers can depend on a stable, lightweight vocabulary.

Re-exports

pub use bounded::BoundedSeen;

pub use codec::PayloadCodec;

pub use conformance::ConformanceClass;

pub use control::ControlOpcode;

pub use errors::ErrorClass;

pub use errors::codes;

pub use flags::GbpFlags;

pub use ids::Epoch;

pub use ids::GroupId;

pub use ids::MemberId;

pub use ids::SequenceNo;

pub use ids::StreamId;

pub use ids::TransitionId;

pub use signal::SignalType;

pub use state::NodeState;

pub use state::SubprotocolState;

pub use state::TransitionState;

pub use state::timeouts;

pub use stream::StreamType;

Modules

bounded

LRU-bounded set for per-epoch deduplication.

codec

Payload codec discriminant.

conformance

Interoperability conformance classes (gbp-interop-profile §2).

control

GBP control plane opcode registry.

errors

Error class enum and the registry of canonical error codes.

flags

GBP frame delivery flags.

ids

Identifier type aliases used across the stack.

signal

GSP signal opcode registry.

state

Finite state machines defined by the state-machine specification.

stream

GBP stream classes.