kyle
fafda104ea
Buffer pending acks (acks for addressed, bcast_acks for broadcast, ACK_BUFFER_CAP=256, overflow drops oldest), skip a released-duplicate offer in accept(), and emit Ack frames in next_frame after a due summary and before addressed/broadcast traffic, draining up to ACK_IDS_CAP ids per destination and splitting across frames to fit mtu. Release custody on an Ack only when the Ack confirms delivery to the intended recipient: an Ack from a peer that merely holds an epidemic-forwarded copy no longer releases custody, so the local copy stays available to forward toward the recipient once the only contact to it closes.
48 lines
1.6 KiB
Rust
48 lines
1.6 KiB
Rust
//! Compile-time constants for the tines workspace.
|
|
//!
|
|
//! Every value here is a compile-time `const` so it can drive generic
|
|
//! parameters (e.g. `heapless::Vec` capacities) and be optimized away.
|
|
|
|
/// Maximum topic length in bytes.
|
|
pub const MAX_TOPIC: usize = 64;
|
|
|
|
/// Maximum payload length in bytes.
|
|
pub const MAX_PAYLOAD: usize = 1024;
|
|
|
|
/// Maximum number of peers a node tracks.
|
|
pub const MAX_PEERS: usize = 8;
|
|
|
|
/// Maximum size, in bytes, of a per-key summary.
|
|
pub const SUMMARY_BYTES: usize = 512;
|
|
|
|
/// Number of hash functions used by the per-key Bloom filter.
|
|
pub const BLOOM_K: usize = 3;
|
|
|
|
/// Interval, in milliseconds, between summary emissions.
|
|
pub const SUMMARY_INTERVAL_MS: u64 = 2000;
|
|
|
|
/// Timeout, in milliseconds, for inbound frame reassembly.
|
|
pub const REASSEMBLY_TIMEOUT_MS: u64 = 5000;
|
|
|
|
/// Maximum number of frames buffered for outbound delivery.
|
|
pub const SEND_QUEUE_CAP: usize = 256;
|
|
|
|
/// Maximum UDP frame size in bytes.
|
|
pub const MAX_FRAME: usize = 1500;
|
|
|
|
/// Maximum number of content-IDs an `Ack` receipt may carry.
|
|
pub const ACK_IDS_CAP: usize = 90;
|
|
|
|
/// Cap on the `Exchange` `events` queue of `ConfidenceEvent`s (one per
|
|
/// broadcast id a peer has confirmed).
|
|
pub const EVENT_QUEUE_CAP: usize = 64;
|
|
|
|
/// Cap on the `Exchange` per-peer `bcast_sent` table of broadcast ids
|
|
/// dispatched to a peer.
|
|
pub const BCAST_SENT_CAP: usize = 256;
|
|
|
|
/// Cap on the number of pending ack ids (`acks` for addressed, `bcast_acks`
|
|
/// for broadcast) buffered before the next Ack is emitted. Overflow drops
|
|
/// the oldest pending entry.
|
|
pub const ACK_BUFFER_CAP: usize = 256;
|