Module sv::messages [−][src]
Expand description
Peer-to-peer network protocol messages
Examples
Decode a network message
use sv::messages::Message;
use sv::network::Network;
use std::io::Cursor;
let bytes = [
227, 225, 243, 232, 104, 101, 97, 100, 101, 114, 115,
0, 0, 0, 0, 0, 1, 0, 0, 0, 20, 6, 224, 88, 0,
];
let magic = Network::Mainnet.magic();
let message = Message::read(&mut Cursor::new(&bytes), magic).unwrap();
match message {
Message::Headers(headers) => { /* Handle headers message */ },
_ => { /* All other messages */ }
}Construct a transaction:
use sv::messages::{OutPoint, Tx, TxIn, TxOut};
use sv::transaction::p2pkh::{create_lock_script, create_unlock_script};
use sv::util::{hash160, Hash256};
// Use real values here
let signature = [0; 72];
let public_key = [0; 33];
let prev_output = OutPoint {
hash: Hash256([0; 32]),
index: 0,
};
let inputs = vec![TxIn {
prev_output,
unlock_script: create_unlock_script(&signature, &public_key),
sequence: 0,
}];
let outputs = vec![TxOut {
satoshis: 1000,
lock_script: create_lock_script(&hash160(&public_key)),
}];
let tx = Tx {
version: 2,
inputs,
outputs,
lock_time: 0,
};Modules
Message commands for the header
Structs
Known node addresses
Block of transactions
Block header
Specifies which blocks to return
Specifies the minimum transaction fee this node accepts
Adds a data element to the bloom filter
Loads a bloom filter using the specified parameters
Collection of block headers
Inventory payload describing objects a node knows about
Inventory vector describing an object being requested or announced
A block header and partial merkle tree for SPV nodes to validate transactions
Header that begins all messages
Network address for a node on the network
Node network address extended with a last connected time
Reference to a transaction output
Ping or pong payload
Rejected message
Specifies whether compact blocks are supported
Bitcoin transaction
Transaction input
Transaction output
Version payload defining a node’s capabilities
Enums
Bitcoin peer-to-peer message with its payload
Constants
Filter is updated to include the serialized outpoint if any data elements matched in its script pubkey
Filter is not adjusted when a match is found
Filter is updated simialr to BLOOM_UPDATE_ALL but only for P2PK or multisig transactions
The coinbase transaction input will have this hash
The coinbase transaction input will have this index
Hash of a block header.
Hash of a block header. Indicates the reply should be a cmpctblock message.
May be ignored
Hash of a block header. Indicates the reply should be a merkleblock message.
Hash of a transaction
Maximum size of a data element in the FilterAdd message
Maximum number of objects in an inv message
Max message payload size (32MB)
Maximum number of satoshis possible
Minimum protocol version supported by this library
Service flag that node is a full node and implements all protocol features
Service flag that node is a full node and implements all protocol features
Service flag that node is not a full node. Used for SPV wallets.
Checksum to use when there is an empty payload
Return results until either there are 2000 for getheaders or 500 or getblocks, or no more left
Protocol version supported by this library
Unknown IP address to use as a default
Traits
Message payload that is writable to bytes
Functions
Returns the hash for a header at a particular index utilizing prev_hash if possible