67 lines
1.6 KiB
Protocol Buffer
67 lines
1.6 KiB
Protocol Buffer
syntax = "proto3";
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package lattice;
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// 1. The Wrapper (What flies over the wire)
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message SignedEntry {
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// The serialized bytes of the 'Entry' message.
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// We keep this as raw bytes so the signature verification is stable.
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bytes entry_bytes = 1;
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// Ed25519 Signature of 'entry_bytes'
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bytes signature = 2;
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// Public Key of the author (32 bytes)
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bytes author_id = 3;
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}
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// 2. The Log Entry (The Atomic Unit)
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message Entry {
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// Versioning allows us to change the format radically later if needed
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uint32 version = 1;
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// Ordering Metadata
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bytes prev_hash = 2; // Link to previous entry (32 bytes)
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uint64 seq = 3; // Monotonic sequence number
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HLC timestamp = 4; // Hybrid Logical Clock
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// The Batch of Operations
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repeated Operation ops = 5;
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}
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// Hybrid Logical Clock
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message HLC {
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uint64 wall_time = 1; // Unix timestamp (ms)
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uint32 counter = 2; // Logical counter for same-ms ordering
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}
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// 3. The Operation (The Change)
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message Operation {
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// "oneof" is how Protobuf handles Rust Enums
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oneof op_type {
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PutOp put = 1;
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DeleteOp delete = 2;
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// Future: MergeOp merge = 3;
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}
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}
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message PutOp {
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string key = 1;
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bytes value = 2; // Raw bytes allows storing images, JSON, binary, etc.
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}
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message DeleteOp {
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string key = 1;
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}
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// 4. The Sync Handshake (Vector Clocks)
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message SyncState {
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repeated Frontier frontiers = 1;
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HLC sender_hlc = 2; // Sender's current clock (for peer time awareness)
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}
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message Frontier {
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bytes author_id = 1; // Ed25519 public key (32 bytes)
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uint64 max_seq = 2; // Highest sequence number seen from this author
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}
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