Module utxo_overlay 

Structs

UtxoOverlay

Zero-copy overlay for UTXO set modifications during block validation.

Traits

UtxoLookup

Trait for UTXO lookups - implemented by both UtxoSet and UtxoOverlay.

Functions

apply_transaction_to_overlay

Apply a transaction to the overlay (for validation phase).

apply_transaction_to_overlay_no_undo

Apply a transaction to the overlay WITHOUT building undo entries.

apply_transaction_to_overlay_no_undo_cached

Apply overlay mutation using optional pre-built output cache when present.

apply_transaction_to_overlay_no_undo_with_output_cache

Same as apply_transaction_to_overlay_no_undo but reuses pre-built output Arcs.

build_block_output_utxo_cache

Pre-build all block output UTXOs once (identical bytes to per-tx overlay apply).

to_fast_utxo_set

Convert standard UtxoSet to FastUtxoSet (clones UTXOs).

utxo_deletion_key_to_outpoint

Type Aliases

FastUtxoSet

Fast UTXO set using FxHash for better performance.

UtxoDeletionKey

Fixed-size key for deletions set — avoids OutPoint clone in remove() (~3k inputs/block). Same encoding as outpoint_to_key below: 32-byte txid + 4-byte big-endian vout.