Module casper_execution_engine::core::tracking_copy

This module defines the TrackingCopy - a utility that caches operations on the state, so that the underlying state remains unmodified, but it can be interacted with as if the modifications were applied on it.

Structs

• TrackingCopy
  An interface for the global state that caches all operations (reads and writes) instead of applying them directly to the state. This way the state remains unmodified, while the user can interact with it as if it was being modified in real time.
• TrackingCopyCache
  Keeps track of already accessed keys. We deliberately separate cached Reads from cached mutations because we want to invalidate Reads’ cache so it doesn’t grow too fast.

Enums

• AddResult
  Result of executing an “add” operation on a value in the state.
• TrackingCopyQueryResult
  Result of a query on a TrackingCopy.
• ValidationError
  Error conditions of a proof validation.

Traits

• TrackingCopyExt
  Higher-level operations on the state via a TrackingCopy.

Functions

• validate_balance_proof
  Validates a proof of a balance request.
• validate_query_proof
  Validates proof of the query.