README
¶
Oracle EVM
Avalanche is a network composed of multiple blockchains. Each blockchain is an instance of a Virtual Machine (VM), much like an object in an object-oriented language is an instance of a class. That is, the VM defines the behavior of the blockchain.
The OracleEVM is a customised EVM that uses stateful pre-compiles to create gas efficient access to high fidelity financial information in every block.
How it works:
- Validators stream deterministic financial data from the decentralised pyth network on solana
- During block production, the financial data is included in the block header
- Validators vote on the validity of the block (including the contained financial data)
- Financial data is written into the state db when blocks are accepted by nodes
- Stateful pre-compiles make data directly accessible from smart contracts
The main benefits of the OracleEVM are:
- The conservation of block space
- Very gas efficient access to financial data via pre-compiles
- Validity of financial data is enforced by vm block verification and consensus
The Subnet EVM runs in a separate process from the main AvalancheGo process and communicates with it over a local gRPC connection.
Running test network
You can intitialize a local test network using run.sh script in scripts/run.sh
Directories
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| Path | Synopsis |
|---|---|
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Package accounts implements high level Ethereum account management.
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Package accounts implements high level Ethereum account management. |
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abi
Package abi implements the Ethereum ABI (Application Binary Interface).
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Package abi implements the Ethereum ABI (Application Binary Interface). |
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abi/bind
Package bind generates Ethereum contract Go bindings.
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Package bind generates Ethereum contract Go bindings. |
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keystore
Package keystore implements encrypted storage of secp256k1 private keys.
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Package keystore implements encrypted storage of secp256k1 private keys. |
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cmd
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simulator
Module
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Package consensus implements different Ethereum consensus engines.
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Package consensus implements different Ethereum consensus engines. |
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Package core implements the Ethereum consensus protocol.
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Package core implements the Ethereum consensus protocol. |
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bloombits
Package bloombits implements bloom filtering on batches of data.
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Package bloombits implements bloom filtering on batches of data. |
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rawdb
Package rawdb contains a collection of low level database accessors.
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Package rawdb contains a collection of low level database accessors. |
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state
Package state provides a caching layer atop the Ethereum state trie.
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Package state provides a caching layer atop the Ethereum state trie. |
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state/snapshot
Package snapshot implements a journalled, dynamic state dump.
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Package snapshot implements a journalled, dynamic state dump. |
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types
Package types contains data types related to Ethereum consensus.
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Package types contains data types related to Ethereum consensus. |
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vm
Package vm implements the Ethereum Virtual Machine.
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Package vm implements the Ethereum Virtual Machine. |
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vm/runtime
Package runtime provides a basic execution model for executing EVM code.
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Package runtime provides a basic execution model for executing EVM code. |
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Package eth implements the Ethereum protocol.
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Package eth implements the Ethereum protocol. |
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filters
Package filters implements an ethereum filtering system for block, transactions and log events.
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Package filters implements an ethereum filtering system for block, transactions and log events. |
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tracers
Package tracers is a manager for transaction tracing engines.
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Package tracers is a manager for transaction tracing engines. |
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tracers/js
package js is a collection of tracers written in javascript.
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package js is a collection of tracers written in javascript. |
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tracers/js/internal/tracers
Package tracers contains the actual JavaScript tracer assets.
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Package tracers contains the actual JavaScript tracer assets. |
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tracers/native
Package native is a collection of tracers written in go.
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Package native is a collection of tracers written in go. |
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Package ethclient provides a client for the Ethereum RPC API.
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Package ethclient provides a client for the Ethereum RPC API. |
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subnetevmclient
Package subnetevmclient provides an RPC client for subnet-evm-specific APIs.
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Package subnetevmclient provides an RPC client for subnet-evm-specific APIs. |
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Package ethdb defines the interfaces for an Ethereum data store.
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Package ethdb defines the interfaces for an Ethereum data store. |
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leveldb
Package leveldb implements the key-value database layer based on LevelDB.
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Package leveldb implements the key-value database layer based on LevelDB. |
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memorydb
Package memorydb implements the key-value database layer based on memory maps.
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Package memorydb implements the key-value database layer based on memory maps. |
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Package ethereum defines interfaces for interacting with Ethereum.
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Package ethereum defines interfaces for interacting with Ethereum. |
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internal
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debug
Package debug interfaces Go runtime debugging facilities.
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Package debug interfaces Go runtime debugging facilities. |
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ethapi
Package ethapi implements the general Ethereum API functions.
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Package ethapi implements the general Ethereum API functions. |
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metrics
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Package miner implements Ethereum block creation and mining.
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Package miner implements Ethereum block creation and mining. |
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Package rpc implements bi-directional JSON-RPC 2.0 on multiple transports.
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Package rpc implements bi-directional JSON-RPC 2.0 on multiple transports. |
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runner
module
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scripts
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parser
Module
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signer
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Package trie implements Merkle Patricia Tries.
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Package trie implements Merkle Patricia Tries. |
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