Merge branch 'storage-alt-blocks' into cuprated-blockchain

This commit is contained in:
Boog900 2024-09-09 17:04:50 +01:00
commit b5f8475250
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GPG key ID: 42AB1287CB0041C2
26 changed files with 1401 additions and 115 deletions

1
Cargo.lock generated
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@ -543,6 +543,7 @@ dependencies = [
"monero-serai",
"pretty_assertions",
"proptest",
"rand",
"rayon",
"serde",
"tempfile",

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@ -9,8 +9,9 @@ repository = "https://github.com/Cuprate/cuprate/tree/main/consensus"
[features]
# TODO: I don't think this is a good idea
# All features on by default.
default = ["std", "atomic", "asynch", "cast", "fs", "num", "map", "time", "thread", "constants"]
default = ["std", "atomic", "asynch", "cast", "fs", "num", "map", "time", "thread", "constants", "tx-utils"]
std = []
atomic = ["dep:crossbeam"]
asynch = ["dep:futures", "dep:rayon"]
@ -21,6 +22,7 @@ num = []
map = ["cast", "dep:monero-serai"]
time = ["dep:chrono", "std"]
thread = ["std", "dep:target_os_lib"]
tx-utils = ["dep:monero-serai"]
[dependencies]
crossbeam = { workspace = true, optional = true }

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@ -31,6 +31,8 @@ pub mod thread;
#[cfg(feature = "time")]
pub mod time;
#[cfg(feature = "tx-utils")]
pub mod tx_utils;
//---------------------------------------------------------------------------------------------------- Private Usage
//----------------------------------------------------------------------------------------------------

34
helper/src/tx_utils.rs Normal file
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@ -0,0 +1,34 @@
//! Utils for working with [`Transaction`]
use monero_serai::transaction::{Input, Transaction};
/// Calculates the fee of the [`Transaction`].
///
/// # Panics
/// This will panic if the inputs overflow or the transaction outputs too much, so should only
/// be used on known to be valid txs.
pub fn tx_fee(tx: &Transaction) -> u64 {
let mut fee = 0_u64;
match &tx {
Transaction::V1 { prefix, .. } => {
for input in &prefix.inputs {
match input {
Input::Gen(_) => return 0,
Input::ToKey { amount, .. } => {
fee = fee.checked_add(amount.unwrap_or(0)).unwrap();
}
}
}
for output in &prefix.outputs {
fee.checked_sub(output.amount.unwrap_or(0)).unwrap();
}
}
Transaction::V2 { proofs, .. } => {
fee = proofs.as_ref().unwrap().base.fee;
}
};
fee
}

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@ -25,11 +25,12 @@ cuprate-database = { path = "../database" }
cuprate-database-service = { path = "../service" }
cuprate-helper = { path = "../../helper", features = ["fs", "thread", "map"] }
cuprate-types = { path = "../../types", features = ["blockchain"] }
cuprate-pruning = { path = "../../pruning" }
bitflags = { workspace = true, features = ["std", "serde", "bytemuck"] }
bytemuck = { workspace = true, features = ["must_cast", "derive", "min_const_generics", "extern_crate_alloc"] }
curve25519-dalek = { workspace = true }
cuprate-pruning = { path = "../../pruning" }
rand = { workspace = true }
monero-serai = { workspace = true, features = ["std"] }
serde = { workspace = true, optional = true }

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@ -0,0 +1,317 @@
use bytemuck::TransparentWrapper;
use monero_serai::block::{Block, BlockHeader};
use cuprate_database::{DatabaseRo, DatabaseRw, RuntimeError, StorableVec};
use cuprate_helper::map::{combine_low_high_bits_to_u128, split_u128_into_low_high_bits};
use cuprate_types::{AltBlockInformation, Chain, ChainId, ExtendedBlockHeader, HardFork};
use crate::{
ops::{
alt_block::{add_alt_transaction_blob, get_alt_transaction, update_alt_chain_info},
block::get_block_info,
macros::doc_error,
},
tables::{Tables, TablesMut},
types::{AltBlockHeight, BlockHash, BlockHeight, CompactAltBlockInfo},
};
/// Add a [`AltBlockInformation`] to the database.
///
/// This extracts all the data from the input block and
/// maps/adds them to the appropriate database tables.
///
#[doc = doc_error!()]
///
/// # Panics
/// This function will panic if:
/// - `alt_block.height` is == `0`
/// - `alt_block.txs.len()` != `alt_block.block.transactions.len()`
///
pub fn add_alt_block(
alt_block: &AltBlockInformation,
tables: &mut impl TablesMut,
) -> Result<(), RuntimeError> {
let alt_block_height = AltBlockHeight {
chain_id: alt_block.chain_id.into(),
height: alt_block.height,
};
tables
.alt_block_heights_mut()
.put(&alt_block.block_hash, &alt_block_height)?;
update_alt_chain_info(&alt_block_height, &alt_block.block.header.previous, tables)?;
let (cumulative_difficulty_low, cumulative_difficulty_high) =
split_u128_into_low_high_bits(alt_block.cumulative_difficulty);
let alt_block_info = CompactAltBlockInfo {
block_hash: alt_block.block_hash,
pow_hash: alt_block.pow_hash,
height: alt_block.height,
weight: alt_block.weight,
long_term_weight: alt_block.long_term_weight,
cumulative_difficulty_low,
cumulative_difficulty_high,
};
tables
.alt_blocks_info_mut()
.put(&alt_block_height, &alt_block_info)?;
tables.alt_block_blobs_mut().put(
&alt_block_height,
StorableVec::wrap_ref(&alt_block.block_blob),
)?;
assert_eq!(alt_block.txs.len(), alt_block.block.transactions.len());
for tx in &alt_block.txs {
add_alt_transaction_blob(tx, tables)?;
}
Ok(())
}
/// Retrieves an [`AltBlockInformation`] from the database.
///
/// This function will look at only the blocks with the given [`AltBlockHeight::chain_id`], no others
/// even if they are technically part of this chain.
#[doc = doc_error!()]
pub fn get_alt_block(
alt_block_height: &AltBlockHeight,
tables: &impl Tables,
) -> Result<AltBlockInformation, RuntimeError> {
let block_info = tables.alt_blocks_info().get(alt_block_height)?;
let block_blob = tables.alt_block_blobs().get(alt_block_height)?.0;
let block = Block::read(&mut block_blob.as_slice())?;
let txs = block
.transactions
.iter()
.map(|tx_hash| get_alt_transaction(tx_hash, tables))
.collect::<Result<_, RuntimeError>>()?;
Ok(AltBlockInformation {
block,
block_blob,
txs,
block_hash: block_info.block_hash,
pow_hash: block_info.pow_hash,
height: block_info.height,
weight: block_info.weight,
long_term_weight: block_info.long_term_weight,
cumulative_difficulty: combine_low_high_bits_to_u128(
block_info.cumulative_difficulty_low,
block_info.cumulative_difficulty_high,
),
chain_id: alt_block_height.chain_id.into(),
})
}
/// Retrieves the hash of the block at the given `block_height` on the alt chain with
/// the given [`ChainId`].
///
/// This function will get blocks from the whole chain, for example if you were to ask for height
/// `0` with any [`ChainId`] (as long that chain actually exists) you will get the main chain genesis.
///
#[doc = doc_error!()]
pub fn get_alt_block_hash(
block_height: &BlockHeight,
alt_chain: ChainId,
tables: &impl Tables,
) -> Result<BlockHash, RuntimeError> {
let alt_chains = tables.alt_chain_infos();
// First find what [`ChainId`] this block would be stored under.
let original_chain = {
let mut chain = alt_chain.into();
loop {
let chain_info = alt_chains.get(&chain)?;
if chain_info.common_ancestor_height < *block_height {
break Chain::Alt(chain.into());
}
match chain_info.parent_chain.into() {
Chain::Main => break Chain::Main,
Chain::Alt(alt_chain_id) => {
chain = alt_chain_id.into();
continue;
}
}
}
};
// Get the block hash.
match original_chain {
Chain::Main => {
get_block_info(block_height, tables.block_infos()).map(|info| info.block_hash)
}
Chain::Alt(chain_id) => tables
.alt_blocks_info()
.get(&AltBlockHeight {
chain_id: chain_id.into(),
height: *block_height,
})
.map(|info| info.block_hash),
}
}
/// Retrieves the [`ExtendedBlockHeader`] of the alt-block with an exact [`AltBlockHeight`].
///
/// This function will look at only the blocks with the given [`AltBlockHeight::chain_id`], no others
/// even if they are technically part of this chain.
///
#[doc = doc_error!()]
pub fn get_alt_block_extended_header_from_height(
height: &AltBlockHeight,
table: &impl Tables,
) -> Result<ExtendedBlockHeader, RuntimeError> {
let block_info = table.alt_blocks_info().get(height)?;
let block_blob = table.alt_block_blobs().get(height)?.0;
let block_header = BlockHeader::read(&mut block_blob.as_slice())?;
Ok(ExtendedBlockHeader {
version: HardFork::from_version(block_header.hardfork_version)
.expect("Block in DB must have correct version"),
vote: block_header.hardfork_version,
timestamp: block_header.timestamp,
cumulative_difficulty: combine_low_high_bits_to_u128(
block_info.cumulative_difficulty_low,
block_info.cumulative_difficulty_high,
),
block_weight: block_info.weight,
long_term_weight: block_info.long_term_weight,
})
}
#[cfg(test)]
mod tests {
use std::num::NonZero;
use cuprate_database::{Env, EnvInner, TxRw};
use cuprate_test_utils::data::{BLOCK_V16_TX0, BLOCK_V1_TX2, BLOCK_V9_TX3};
use cuprate_types::{Chain, ChainId};
use crate::{
ops::{
alt_block::{
add_alt_block, flush_alt_blocks, get_alt_block,
get_alt_block_extended_header_from_height, get_alt_block_hash,
get_alt_chain_history_ranges,
},
block::{add_block, pop_block},
},
tables::{OpenTables, Tables},
tests::{assert_all_tables_are_empty, map_verified_block_to_alt, tmp_concrete_env},
types::AltBlockHeight,
};
#[allow(clippy::range_plus_one)]
#[test]
fn all_alt_blocks() {
let (env, _tmp) = tmp_concrete_env();
let env_inner = env.env_inner();
assert_all_tables_are_empty(&env);
let chain_id = ChainId(NonZero::new(1).unwrap());
// Add initial block.
{
let tx_rw = env_inner.tx_rw().unwrap();
let mut tables = env_inner.open_tables_mut(&tx_rw).unwrap();
let mut initial_block = BLOCK_V1_TX2.clone();
initial_block.height = 0;
add_block(&initial_block, &mut tables).unwrap();
drop(tables);
TxRw::commit(tx_rw).unwrap();
}
let alt_blocks = [
map_verified_block_to_alt(BLOCK_V9_TX3.clone(), chain_id),
map_verified_block_to_alt(BLOCK_V16_TX0.clone(), chain_id),
];
// Add alt-blocks
{
let tx_rw = env_inner.tx_rw().unwrap();
let mut tables = env_inner.open_tables_mut(&tx_rw).unwrap();
let mut prev_hash = BLOCK_V1_TX2.block_hash;
for (i, mut alt_block) in alt_blocks.into_iter().enumerate() {
let height = i + 1;
alt_block.height = height;
alt_block.block.header.previous = prev_hash;
alt_block.block_blob = alt_block.block.serialize();
add_alt_block(&alt_block, &mut tables).unwrap();
let alt_height = AltBlockHeight {
chain_id: chain_id.into(),
height,
};
let alt_block_2 = get_alt_block(&alt_height, &tables).unwrap();
assert_eq!(alt_block.block, alt_block_2.block);
let headers = get_alt_chain_history_ranges(
0..(height + 1),
chain_id,
tables.alt_chain_infos(),
)
.unwrap();
assert_eq!(headers.len(), 2);
assert_eq!(headers[1], (Chain::Main, 0..1));
assert_eq!(headers[0], (Chain::Alt(chain_id), 1..(height + 1)));
prev_hash = alt_block.block_hash;
let header =
get_alt_block_extended_header_from_height(&alt_height, &tables).unwrap();
assert_eq!(header.timestamp, alt_block.block.header.timestamp);
assert_eq!(header.block_weight, alt_block.weight);
assert_eq!(header.long_term_weight, alt_block.long_term_weight);
assert_eq!(
header.cumulative_difficulty,
alt_block.cumulative_difficulty
);
assert_eq!(
header.version.as_u8(),
alt_block.block.header.hardfork_version
);
assert_eq!(header.vote, alt_block.block.header.hardfork_signal);
let block_hash = get_alt_block_hash(&height, chain_id, &tables).unwrap();
assert_eq!(block_hash, alt_block.block_hash);
}
drop(tables);
TxRw::commit(tx_rw).unwrap();
}
{
let mut tx_rw = env_inner.tx_rw().unwrap();
flush_alt_blocks(&env_inner, &mut tx_rw).unwrap();
let mut tables = env_inner.open_tables_mut(&tx_rw).unwrap();
pop_block(None, &mut tables).unwrap();
drop(tables);
TxRw::commit(tx_rw).unwrap();
}
assert_all_tables_are_empty(&env);
}
}

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@ -0,0 +1,93 @@
use std::cmp::max;
use cuprate_database::{DatabaseRo, DatabaseRw, RuntimeError};
use cuprate_types::{Chain, ChainId};
use crate::{
ops::macros::{doc_add_alt_block_inner_invariant, doc_error},
tables::{AltChainInfos, TablesMut},
types::{AltBlockHeight, AltChainInfo, BlockHash, BlockHeight},
};
/// Updates the [`AltChainInfo`] with information on a new alt-block.
///
#[doc = doc_add_alt_block_inner_invariant!()]
#[doc = doc_error!()]
///
/// # Panics
///
/// This will panic if [`AltBlockHeight::height`] == `0`.
pub fn update_alt_chain_info(
alt_block_height: &AltBlockHeight,
prev_hash: &BlockHash,
tables: &mut impl TablesMut,
) -> Result<(), RuntimeError> {
// try update the info if one exists for this chain.
let update = tables
.alt_chain_infos_mut()
.update(&alt_block_height.chain_id, |mut info| {
info.chain_height = alt_block_height.height + 1;
Some(info)
});
match update {
Ok(()) => return Ok(()),
Err(RuntimeError::KeyNotFound) => (),
Err(e) => return Err(e),
}
// If one doesn't already exist add it.
let parent_chain = match tables.alt_block_heights().get(prev_hash) {
Ok(alt_parent_height) => Chain::Alt(alt_parent_height.chain_id.into()),
Err(RuntimeError::KeyNotFound) => Chain::Main,
Err(e) => return Err(e),
};
tables.alt_chain_infos_mut().put(
&alt_block_height.chain_id,
&AltChainInfo {
parent_chain: parent_chain.into(),
common_ancestor_height: alt_block_height.height.checked_sub(1).unwrap(),
chain_height: alt_block_height.height + 1,
},
)
}
/// Get the height history of an alt-chain in reverse chronological order.
///
/// Height history is a list of height ranges with the corresponding [`Chain`] they are stored under.
/// For example if your range goes from height `0` the last entry in the list will be [`Chain::Main`]
/// upto the height where the first split occurs.
#[doc = doc_error!()]
pub fn get_alt_chain_history_ranges(
range: std::ops::Range<BlockHeight>,
alt_chain: ChainId,
alt_chain_infos: &impl DatabaseRo<AltChainInfos>,
) -> Result<Vec<(Chain, std::ops::Range<BlockHeight>)>, RuntimeError> {
let mut ranges = Vec::with_capacity(5);
let mut i = range.end;
let mut current_chain_id = alt_chain.into();
while i > range.start {
let chain_info = alt_chain_infos.get(&current_chain_id)?;
let start_height = max(range.start, chain_info.common_ancestor_height + 1);
ranges.push((Chain::Alt(current_chain_id.into()), start_height..i));
i = chain_info.common_ancestor_height + 1;
match chain_info.parent_chain.into() {
Chain::Main => {
ranges.push((Chain::Main, range.start..i));
break;
}
Chain::Alt(alt_chain_id) => {
current_chain_id = alt_chain_id.into();
continue;
}
}
}
Ok(ranges)
}

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@ -0,0 +1,75 @@
//! Alternative Block/Chain Ops
//!
//! Alternative chains are chains that potentially have more proof-of-work than the main-chain
//! which we are tracking to potentially re-org to.
//!
//! Cuprate uses an ID system for alt-chains. When a split is made from the main-chain we generate
//! a random [`ChainID`](cuprate_types::ChainId) and assign it to the chain:
//!
//! ```text
//! |
//! |
//! | split
//! |-------------
//! | |
//! | |
//! \|/ \|/
//! main-chain ChainID(X)
//! ```
//!
//! In that example if we were to receive an alt-block which immediately follows the top block of `ChainID(X)`
//! then that block will also be stored under `ChainID(X)`. However, if it follows from another block from `ChainID(X)`
//! we will split into a chain with a different ID:
//!
//! ```text
//! |
//! |
//! | split
//! |-------------
//! | | split
//! | |-------------|
//! | | |
//! | | |
//! | | |
//! \|/ \|/ \|/
//! main-chain ChainID(X) ChainID(Z)
//! ```
//!
//! As you can see if we wanted to get all the alt-blocks in `ChainID(Z)` that now includes some blocks from `ChainID(X)` as well.
//! [`get_alt_chain_history_ranges`] covers this and is the method to get the ranges of heights needed from each [`ChainID`](cuprate_types::ChainId)
//! to get all the alt-blocks in a given [`ChainID`](cuprate_types::ChainId).
//!
//! Although this should be kept in mind as a possibility, because Cuprate's block downloader will only track a single chain it is
//! unlikely that we will be tracking [`ChainID`](cuprate_types::ChainId) that don't immediately connect to the main-chain.
//!
//! ## Why not use block's previous field?
//!
//! Although that would be easier, it makes getting a range of block extremely slow, as we have to build the weight cache to verify
//! blocks, roughly 100,000 block headers needed, this cost was seen as too high.
pub use block::*;
pub use chain::*;
pub use tx::*;
mod block;
mod chain;
mod tx;
/// Flush all alt-block data from all the alt-block tables.
///
/// This function completely empties the alt block tables.
pub fn flush_alt_blocks<'a, E: cuprate_database::EnvInner<'a>>(
env_inner: &E,
tx_rw: &mut E::Rw<'_>,
) -> Result<(), cuprate_database::RuntimeError> {
use crate::tables::{
AltBlockBlobs, AltBlockHeights, AltBlocksInfo, AltChainInfos, AltTransactionBlobs,
AltTransactionInfos,
};
env_inner.clear_db::<AltChainInfos>(tx_rw)?;
env_inner.clear_db::<AltBlockHeights>(tx_rw)?;
env_inner.clear_db::<AltBlocksInfo>(tx_rw)?;
env_inner.clear_db::<AltBlockBlobs>(tx_rw)?;
env_inner.clear_db::<AltTransactionBlobs>(tx_rw)?;
env_inner.clear_db::<AltTransactionInfos>(tx_rw)
}

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@ -0,0 +1,74 @@
use bytemuck::TransparentWrapper;
use monero_serai::transaction::Transaction;
use cuprate_database::{DatabaseRo, DatabaseRw, RuntimeError, StorableVec};
use cuprate_types::VerifiedTransactionInformation;
use crate::{
ops::macros::{doc_add_alt_block_inner_invariant, doc_error},
tables::{Tables, TablesMut},
types::{AltTransactionInfo, TxHash},
};
/// Adds a [`VerifiedTransactionInformation`] form an alt-block to the DB, if
/// that transaction is not already in the DB.
///
/// If the transaction is in the main-chain this function will still fill in the
/// [`AltTransactionInfos`](crate::tables::AltTransactionInfos) table, as that
/// table holds data which we don't keep around for main-chain txs.
///
#[doc = doc_add_alt_block_inner_invariant!()]
#[doc = doc_error!()]
pub fn add_alt_transaction_blob(
tx: &VerifiedTransactionInformation,
tables: &mut impl TablesMut,
) -> Result<(), RuntimeError> {
tables.alt_transaction_infos_mut().put(
&tx.tx_hash,
&AltTransactionInfo {
tx_weight: tx.tx_weight,
fee: tx.fee,
tx_hash: tx.tx_hash,
},
)?;
if tables.tx_ids().get(&tx.tx_hash).is_ok()
|| tables.alt_transaction_blobs().get(&tx.tx_hash).is_ok()
{
return Ok(());
}
tables
.alt_transaction_blobs_mut()
.put(&tx.tx_hash, StorableVec::wrap_ref(&tx.tx_blob))
}
/// Retrieve a [`VerifiedTransactionInformation`] from the database.
///
#[doc = doc_error!()]
pub fn get_alt_transaction(
tx_hash: &TxHash,
tables: &impl Tables,
) -> Result<VerifiedTransactionInformation, RuntimeError> {
let tx_info = tables.alt_transaction_infos().get(tx_hash)?;
let tx_blob = match tables.alt_transaction_blobs().get(tx_hash) {
Ok(blob) => blob.0,
Err(RuntimeError::KeyNotFound) => {
let tx_id = tables.tx_ids().get(tx_hash)?;
let blob = tables.tx_blobs().get(&tx_id)?;
blob.0
}
Err(e) => return Err(e),
};
Ok(VerifiedTransactionInformation {
tx: Transaction::read(&mut tx_blob.as_slice()).unwrap(),
tx_blob,
tx_weight: tx_info.tx_weight,
fee: tx_info.fee,
tx_hash: tx_info.tx_hash,
})
}

View file

@ -2,16 +2,23 @@
//---------------------------------------------------------------------------------------------------- Import
use bytemuck::TransparentWrapper;
use monero_serai::block::Block;
use monero_serai::block::{Block, BlockHeader};
use cuprate_database::{
RuntimeError, StorableVec, {DatabaseRo, DatabaseRw},
};
use cuprate_helper::map::{combine_low_high_bits_to_u128, split_u128_into_low_high_bits};
use cuprate_types::{ExtendedBlockHeader, HardFork, VerifiedBlockInformation};
use cuprate_helper::{
map::{combine_low_high_bits_to_u128, split_u128_into_low_high_bits},
tx_utils::tx_fee,
};
use cuprate_types::{
AltBlockInformation, ChainId, ExtendedBlockHeader, HardFork, VerifiedBlockInformation,
VerifiedTransactionInformation,
};
use crate::{
ops::{
alt_block,
blockchain::{chain_height, cumulative_generated_coins},
macros::doc_error,
output::get_rct_num_outputs,
@ -33,11 +40,6 @@ use crate::{
/// This function will panic if:
/// - `block.height > u32::MAX` (not normally possible)
/// - `block.height` is not != [`chain_height`]
///
/// # Already exists
/// This function will operate normally even if `block` already
/// exists, i.e., this function will not return `Err` even if you
/// call this function infinitely with the same block.
// no inline, too big.
pub fn add_block(
block: &VerifiedBlockInformation,
@ -106,9 +108,8 @@ pub fn add_block(
cumulative_rct_outs,
timestamp: block.block.header.timestamp,
block_hash: block.block_hash,
// INVARIANT: #[cfg] @ lib.rs asserts `usize == u64`
weight: block.weight as u64,
long_term_weight: block.long_term_weight as u64,
weight: block.weight,
long_term_weight: block.long_term_weight,
},
)?;
@ -129,23 +130,24 @@ pub fn add_block(
/// Remove the top/latest block from the database.
///
/// The removed block's data is returned.
///
/// If a [`ChainId`] is specified the popped block will be added to the alt block tables under
/// that [`ChainId`]. Otherwise, the block will be completely removed from the DB.
#[doc = doc_error!()]
///
/// In `pop_block()`'s case, [`RuntimeError::KeyNotFound`]
/// will be returned if there are no blocks left.
// no inline, too big
pub fn pop_block(
move_to_alt_chain: Option<ChainId>,
tables: &mut impl TablesMut,
) -> Result<(BlockHeight, BlockHash, Block), RuntimeError> {
//------------------------------------------------------ Block Info
// Remove block data from tables.
let (block_height, block_hash) = {
let (block_height, block_info) = tables.block_infos_mut().pop_last()?;
(block_height, block_info.block_hash)
};
// Block heights.
tables.block_heights_mut().delete(&block_hash)?;
tables.block_heights_mut().delete(&block_info.block_hash)?;
// Block blobs.
// We deserialize the block blob into a `Block`, such
@ -154,12 +156,47 @@ pub fn pop_block(
let block = Block::read(&mut block_blob.as_slice())?;
//------------------------------------------------------ Transaction / Outputs / Key Images
let mut txs = Vec::with_capacity(block.transactions.len());
remove_tx(&block.miner_transaction.hash(), tables)?;
for tx_hash in &block.transactions {
remove_tx(tx_hash, tables)?;
let (_, tx) = remove_tx(tx_hash, tables)?;
if move_to_alt_chain.is_some() {
txs.push(VerifiedTransactionInformation {
tx_weight: tx.weight(),
tx_blob: tx.serialize(),
tx_hash: tx.hash(),
fee: tx_fee(&tx),
tx,
});
}
}
Ok((block_height, block_hash, block))
if let Some(chain_id) = move_to_alt_chain {
alt_block::add_alt_block(
&AltBlockInformation {
block: block.clone(),
block_blob,
txs,
block_hash: block_info.block_hash,
// We know the PoW is valid for this block so just set it so it will always verify as
// valid.
pow_hash: [0; 32],
height: block_height,
weight: block_info.weight,
long_term_weight: block_info.long_term_weight,
cumulative_difficulty: combine_low_high_bits_to_u128(
block_info.cumulative_difficulty_low,
block_info.cumulative_difficulty_high,
),
chain_id,
},
tables,
)?;
}
Ok((block_height, block_info.block_hash, block))
}
//---------------------------------------------------------------------------------------------------- `get_block_extended_header_*`
@ -190,23 +227,21 @@ pub fn get_block_extended_header_from_height(
) -> Result<ExtendedBlockHeader, RuntimeError> {
let block_info = tables.block_infos().get(block_height)?;
let block_blob = tables.block_blobs().get(block_height)?.0;
let block = Block::read(&mut block_blob.as_slice())?;
let block_header = BlockHeader::read(&mut block_blob.as_slice())?;
let cumulative_difficulty = combine_low_high_bits_to_u128(
block_info.cumulative_difficulty_low,
block_info.cumulative_difficulty_high,
);
// INVARIANT: #[cfg] @ lib.rs asserts `usize == u64`
#[allow(clippy::cast_possible_truncation)]
Ok(ExtendedBlockHeader {
cumulative_difficulty,
version: HardFork::from_version(block.header.hardfork_version)
version: HardFork::from_version(block_header.hardfork_version)
.expect("Stored block must have a valid hard-fork"),
vote: block.header.hardfork_signal,
timestamp: block.header.timestamp,
block_weight: block_info.weight as usize,
long_term_weight: block_info.long_term_weight as usize,
vote: block_header.hardfork_signal,
timestamp: block_header.timestamp,
block_weight: block_info.weight,
long_term_weight: block_info.long_term_weight,
})
}
@ -270,14 +305,14 @@ mod test {
use cuprate_database::{Env, EnvInner, TxRw};
use cuprate_test_utils::data::{BLOCK_V16_TX0, BLOCK_V1_TX2, BLOCK_V9_TX3};
use super::*;
use crate::{
ops::tx::{get_tx, tx_exists},
tables::OpenTables,
tests::{assert_all_tables_are_empty, tmp_concrete_env, AssertTableLen},
};
use super::*;
/// Tests all above block functions.
///
/// Note that this doesn't test the correctness of values added, as the
@ -412,7 +447,8 @@ mod test {
for block_hash in block_hashes.into_iter().rev() {
println!("pop_block(): block_hash: {}", hex::encode(block_hash));
let (_popped_height, popped_hash, _popped_block) = pop_block(&mut tables).unwrap();
let (_popped_height, popped_hash, _popped_block) =
pop_block(None, &mut tables).unwrap();
assert_eq!(block_hash, popped_hash);

View file

@ -31,3 +31,24 @@ When calling this function, ensure that either:
};
}
pub(super) use doc_add_block_inner_invariant;
// This is pretty much the same as [`doc_add_block_inner_invariant`], it's not worth the effort to reduce
// the duplication.
/// Generate `# Invariant` documentation for internal alt block `fn`'s
/// that should be called directly with caution.
macro_rules! doc_add_alt_block_inner_invariant {
() => {
r#"# ⚠️ Invariant ⚠️
This function mainly exists to be used internally by the parent function [`crate::ops::alt_block::add_alt_block`].
`add_alt_block()` makes sure all data related to the input is mutated, while
this function _does not_, it specifically mutates _particular_ tables.
This is usually undesired - although this function is still available to call directly.
When calling this function, ensure that either:
1. This effect (incomplete database mutation) is what is desired, or that...
2. ...the other tables will also be mutated to a correct state"#
};
}
pub(super) use doc_add_alt_block_inner_invariant;

View file

@ -94,7 +94,7 @@
//! // Read the data, assert it is correct.
//! let tx_rw = env_inner.tx_rw()?;
//! let mut tables = env_inner.open_tables_mut(&tx_rw)?;
//! let (height, hash, serai_block) = pop_block(&mut tables)?;
//! let (height, hash, serai_block) = pop_block(None, &mut tables)?;
//!
//! assert_eq!(height, 0);
//! assert_eq!(serai_block, block.block);
@ -102,6 +102,7 @@
//! # Ok(()) }
//! ```
pub mod alt_block;
pub mod block;
pub mod blockchain;
pub mod key_image;

View file

@ -4,11 +4,14 @@
use std::sync::Arc;
use cuprate_database::{ConcreteEnv, InitError};
use cuprate_types::{AltBlockInformation, VerifiedBlockInformation};
use crate::service::{init_read_service, init_write_service};
use crate::{
config::Config,
service::types::{BlockchainReadHandle, BlockchainWriteHandle},
service::{
init_read_service, init_write_service,
types::{BlockchainReadHandle, BlockchainWriteHandle},
},
};
//---------------------------------------------------------------------------------------------------- Init
@ -81,6 +84,44 @@ pub(super) const fn compact_history_genesis_not_included<const INITIAL_BLOCKS: u
top_block_height > INITIAL_BLOCKS && !(top_block_height - INITIAL_BLOCKS + 2).is_power_of_two()
}
//---------------------------------------------------------------------------------------------------- Map Block
/// Maps [`AltBlockInformation`] to [`VerifiedBlockInformation`]
///
/// # Panics
/// This will panic if the block is invalid, so should only be used on blocks that have been popped from
/// the main-chain.
pub(super) fn map_valid_alt_block_to_verified_block(
alt_block: AltBlockInformation,
) -> VerifiedBlockInformation {
let total_fees = alt_block.txs.iter().map(|tx| tx.fee).sum::<u64>();
let total_miner_output = alt_block
.block
.miner_transaction
.prefix()
.outputs
.iter()
.map(|out| out.amount.unwrap_or(0))
.sum::<u64>();
VerifiedBlockInformation {
block: alt_block.block,
block_blob: alt_block.block_blob,
txs: alt_block
.txs
.into_iter()
.map(TryInto::try_into)
.collect::<Result<_, _>>()
.unwrap(),
block_hash: alt_block.block_hash,
pow_hash: alt_block.pow_hash,
height: alt_block.height,
generated_coins: total_miner_output - total_fees,
weight: alt_block.weight,
long_term_weight: alt_block.long_term_weight,
cumulative_difficulty: alt_block.cumulative_difficulty,
}
}
//---------------------------------------------------------------------------------------------------- Tests
#[cfg(test)]

View file

@ -98,7 +98,7 @@
//!
//! // Block write was OK.
//! let response = response_channel.await?;
//! assert_eq!(response, BlockchainResponse::WriteBlockOk);
//! assert_eq!(response, BlockchainResponse::Ok);
//!
//! // Now, let's try getting the block hash
//! // of the block we just wrote.

View file

@ -8,6 +8,7 @@ use std::{
use rayon::{
iter::{IntoParallelIterator, ParallelIterator},
prelude::*,
ThreadPool,
};
use thread_local::ThreadLocal;
@ -17,11 +18,15 @@ use cuprate_database_service::{init_thread_pool, DatabaseReadService, ReaderThre
use cuprate_helper::map::combine_low_high_bits_to_u128;
use cuprate_types::{
blockchain::{BlockchainReadRequest, BlockchainResponse},
Chain, ExtendedBlockHeader, OutputOnChain,
Chain, ChainId, ExtendedBlockHeader, OutputOnChain,
};
use crate::{
ops::{
alt_block::{
get_alt_block, get_alt_block_extended_header_from_height, get_alt_block_hash,
get_alt_chain_history_ranges,
},
block::{
block_exists, get_block_extended_header_from_height, get_block_height, get_block_info,
},
@ -33,8 +38,10 @@ use crate::{
free::{compact_history_genesis_not_included, compact_history_index_to_height_offset},
types::{BlockchainReadHandle, ResponseResult},
},
tables::{BlockHeights, BlockInfos, OpenTables, Tables},
types::{Amount, AmountIndex, BlockHash, BlockHeight, KeyImage, PreRctOutputId},
tables::{AltBlockHeights, BlockHeights, BlockInfos, OpenTables, Tables},
types::{
AltBlockHeight, Amount, AmountIndex, BlockHash, BlockHeight, KeyImage, PreRctOutputId,
},
};
//---------------------------------------------------------------------------------------------------- init_read_service
@ -87,7 +94,7 @@ fn map_request(
match request {
R::BlockExtendedHeader(block) => block_extended_header(env, block),
R::BlockHash(block, chain) => block_hash(env, block, chain),
R::FindBlock(_) => todo!("Add alt blocks to DB"),
R::FindBlock(block_hash) => find_block(env, block_hash),
R::FilterUnknownHashes(hashes) => filter_unknown_hashes(env, hashes),
R::BlockExtendedHeaderInRange(range, chain) => {
block_extended_header_in_range(env, range, chain)
@ -99,6 +106,7 @@ fn map_request(
R::KeyImagesSpent(set) => key_images_spent(env, set),
R::CompactChainHistory => compact_chain_history(env),
R::FindFirstUnknown(block_ids) => find_first_unknown(env, &block_ids),
R::AltBlocksInChain(chain_id) => alt_blocks_in_chain(env, chain_id),
}
/* SOMEDAY: post-request handling, run some code for each request? */
@ -198,12 +206,39 @@ fn block_hash(env: &ConcreteEnv, block_height: BlockHeight, chain: Chain) -> Res
let block_hash = match chain {
Chain::Main => get_block_info(&block_height, &table_block_infos)?.block_hash,
Chain::Alt(_) => todo!("Add alt blocks to DB"),
Chain::Alt(chain) => {
get_alt_block_hash(&block_height, chain, &env_inner.open_tables(&tx_ro)?)?
}
};
Ok(BlockchainResponse::BlockHash(block_hash))
}
/// [`BlockchainReadRequest::FindBlock`]
fn find_block(env: &ConcreteEnv, block_hash: BlockHash) -> ResponseResult {
// Single-threaded, no `ThreadLocal` required.
let env_inner = env.env_inner();
let tx_ro = env_inner.tx_ro()?;
let table_block_heights = env_inner.open_db_ro::<BlockHeights>(&tx_ro)?;
// Check the main chain first.
match table_block_heights.get(&block_hash) {
Ok(height) => return Ok(BlockchainResponse::FindBlock(Some((Chain::Main, height)))),
Err(RuntimeError::KeyNotFound) => (),
Err(e) => return Err(e),
}
let table_alt_block_heights = env_inner.open_db_ro::<AltBlockHeights>(&tx_ro)?;
let height = table_alt_block_heights.get(&block_hash)?;
Ok(BlockchainResponse::FindBlock(Some((
Chain::Alt(height.chain_id.into()),
height.height,
))))
}
/// [`BlockchainReadRequest::FilterUnknownHashes`].
#[inline]
fn filter_unknown_hashes(env: &ConcreteEnv, mut hashes: HashSet<BlockHash>) -> ResponseResult {
@ -254,7 +289,38 @@ fn block_extended_header_in_range(
get_block_extended_header_from_height(&block_height, tables)
})
.collect::<Result<Vec<ExtendedBlockHeader>, RuntimeError>>()?,
Chain::Alt(_) => todo!("Add alt blocks to DB"),
Chain::Alt(chain_id) => {
let ranges = {
let tx_ro = tx_ro.get_or_try(|| env_inner.tx_ro())?;
let tables = get_tables!(env_inner, tx_ro, tables)?.as_ref();
let alt_chains = tables.alt_chain_infos();
get_alt_chain_history_ranges(range, chain_id, alt_chains)?
};
ranges
.par_iter()
.rev()
.map(|(chain, range)| {
range.clone().into_par_iter().map(|height| {
let tx_ro = tx_ro.get_or_try(|| env_inner.tx_ro())?;
let tables = get_tables!(env_inner, tx_ro, tables)?.as_ref();
match *chain {
Chain::Main => get_block_extended_header_from_height(&height, tables),
Chain::Alt(chain_id) => get_alt_block_extended_header_from_height(
&AltBlockHeight {
chain_id: chain_id.into(),
height,
},
tables,
),
}
})
})
.flatten()
.collect::<Result<Vec<_>, _>>()?
}
};
Ok(BlockchainResponse::BlockExtendedHeaderInRange(vec))
@ -489,3 +555,45 @@ fn find_first_unknown(env: &ConcreteEnv, block_ids: &[BlockHash]) -> ResponseRes
BlockchainResponse::FindFirstUnknown(Some((idx, last_known_height + 1)))
})
}
/// [`BlockchainReadRequest::AltBlocksInChain`]
fn alt_blocks_in_chain(env: &ConcreteEnv, chain_id: ChainId) -> ResponseResult {
// Prepare tx/tables in `ThreadLocal`.
let env_inner = env.env_inner();
let tx_ro = thread_local(env);
let tables = thread_local(env);
// Get the history of this alt-chain.
let history = {
let tx_ro = tx_ro.get_or_try(|| env_inner.tx_ro())?;
let tables = get_tables!(env_inner, tx_ro, tables)?.as_ref();
get_alt_chain_history_ranges(0..usize::MAX, chain_id, tables.alt_chain_infos())?
};
// Get all the blocks until we join the main-chain.
let blocks = history
.par_iter()
.rev()
.skip(1)
.flat_map(|(chain_id, range)| {
let Chain::Alt(chain_id) = chain_id else {
panic!("Should not have main chain blocks here we skipped last range");
};
range.clone().into_par_iter().map(|height| {
let tx_ro = tx_ro.get_or_try(|| env_inner.tx_ro())?;
let tables = get_tables!(env_inner, tx_ro, tables)?.as_ref();
get_alt_block(
&AltBlockHeight {
chain_id: (*chain_id).into(),
height,
},
tables,
)
})
})
.collect::<Result<_, _>>()?;
Ok(BlockchainResponse::AltBlocksInChain(blocks))
}

View file

@ -84,7 +84,7 @@ async fn test_template(
let request = BlockchainWriteRequest::WriteBlock(block);
let response_channel = writer.call(request);
let response = response_channel.await.unwrap();
assert_eq!(response, BlockchainResponse::WriteBlockOk);
assert_eq!(response, BlockchainResponse::Ok);
}
//----------------------------------------------------------------------- Reset the transaction

View file

@ -1,18 +1,21 @@
//! Database writer thread definitions and logic.
//---------------------------------------------------------------------------------------------------- Import
use std::sync::Arc;
use cuprate_database::{ConcreteEnv, Env, EnvInner, RuntimeError, TxRw};
use cuprate_database::{ConcreteEnv, DatabaseRo, DatabaseRw, Env, EnvInner, RuntimeError, TxRw};
use cuprate_database_service::DatabaseWriteHandle;
use cuprate_types::{
blockchain::{BlockchainResponse, BlockchainWriteRequest},
VerifiedBlockInformation,
AltBlockInformation, Chain, ChainId, VerifiedBlockInformation,
};
use crate::{
service::types::{BlockchainWriteHandle, ResponseResult},
tables::OpenTables,
service::{
free::map_valid_alt_block_to_verified_block,
types::{BlockchainWriteHandle, ResponseResult},
},
tables::{OpenTables, Tables, TablesMut},
types::{AltBlockHeight, AltChainInfo},
};
//---------------------------------------------------------------------------------------------------- init_write_service
@ -29,6 +32,12 @@ fn handle_blockchain_request(
) -> Result<BlockchainResponse, RuntimeError> {
match req {
BlockchainWriteRequest::WriteBlock(block) => write_block(env, block),
BlockchainWriteRequest::WriteAltBlock(alt_block) => write_alt_block(env, alt_block),
BlockchainWriteRequest::PopBlocks(numb_blocks) => pop_blocks(env, *numb_blocks),
BlockchainWriteRequest::ReverseReorg(old_main_chain_id) => {
reverse_reorg(env, *old_main_chain_id)
}
BlockchainWriteRequest::FlushAltBlocks => flush_alt_blocks(env),
}
}
@ -55,7 +64,167 @@ fn write_block(env: &ConcreteEnv, block: &VerifiedBlockInformation) -> ResponseR
match result {
Ok(()) => {
TxRw::commit(tx_rw)?;
Ok(BlockchainResponse::WriteBlockOk)
Ok(BlockchainResponse::Ok)
}
Err(e) => {
// INVARIANT: ensure database atomicity by aborting
// the transaction on `add_block()` failures.
TxRw::abort(tx_rw)
.expect("could not maintain database atomicity by aborting write transaction");
Err(e)
}
}
}
/// [`BlockchainWriteRequest::WriteAltBlock`].
#[inline]
fn write_alt_block(env: &ConcreteEnv, block: &AltBlockInformation) -> ResponseResult {
let env_inner = env.env_inner();
let tx_rw = env_inner.tx_rw()?;
let result = {
let mut tables_mut = env_inner.open_tables_mut(&tx_rw)?;
crate::ops::alt_block::add_alt_block(block, &mut tables_mut)
};
match result {
Ok(()) => {
TxRw::commit(tx_rw)?;
Ok(BlockchainResponse::Ok)
}
Err(e) => {
// INVARIANT: ensure database atomicity by aborting
// the transaction on `add_block()` failures.
TxRw::abort(tx_rw)
.expect("could not maintain database atomicity by aborting write transaction");
Err(e)
}
}
}
/// [`BlockchainWriteRequest::PopBlocks`].
fn pop_blocks(env: &ConcreteEnv, numb_blocks: usize) -> ResponseResult {
let env_inner = env.env_inner();
let mut tx_rw = env_inner.tx_rw()?;
// TODO: turn this function into a try block once stable.
let mut result = || {
// flush all the current alt blocks as they may reference blocks to be popped.
crate::ops::alt_block::flush_alt_blocks(&env_inner, &mut tx_rw)?;
let mut tables_mut = env_inner.open_tables_mut(&tx_rw)?;
// generate a `ChainId` for the popped blocks.
let old_main_chain_id = ChainId(rand::random());
// pop the blocks
let mut last_block_height = 0;
for _ in 0..numb_blocks {
(last_block_height, _, _) =
crate::ops::block::pop_block(Some(old_main_chain_id), &mut tables_mut)?;
}
// Update the alt_chain_info with the correct information.
tables_mut.alt_chain_infos_mut().put(
&old_main_chain_id.into(),
&AltChainInfo {
parent_chain: Chain::Main.into(),
common_ancestor_height: last_block_height - 1,
chain_height: last_block_height + numb_blocks,
},
)?;
Ok(old_main_chain_id)
};
match result() {
Ok(old_main_chain_id) => {
TxRw::commit(tx_rw)?;
Ok(BlockchainResponse::PopBlocks(old_main_chain_id))
}
Err(e) => {
// INVARIANT: ensure database atomicity by aborting
// the transaction on `add_block()` failures.
TxRw::abort(tx_rw)
.expect("could not maintain database atomicity by aborting write transaction");
Err(e)
}
}
}
/// [`BlockchainWriteRequest::ReverseReorg`].
fn reverse_reorg(env: &ConcreteEnv, chain_id: ChainId) -> ResponseResult {
let env_inner = env.env_inner();
let tx_rw = env_inner.tx_rw()?;
// TODO: turn this function into a try block once stable.
let result = || {
let mut tables_mut = env_inner.open_tables_mut(&tx_rw)?;
let chain_info = tables_mut.alt_chain_infos().get(&chain_id.into())?;
// Although this doesn't guarantee the chain was popped from the main-chain, it's an easy
// thing for us to check.
assert_eq!(Chain::from(chain_info.parent_chain), Chain::Main);
let tob_block_height =
crate::ops::blockchain::top_block_height(tables_mut.block_heights())?;
// pop any blocks that were added as part of a re-org.
for _ in chain_info.common_ancestor_height..tob_block_height {
crate::ops::block::pop_block(None, &mut tables_mut)?;
}
// Rust borrow rules requires us to collect into a Vec first before looping over the Vec.
let alt_blocks = (chain_info.common_ancestor_height..chain_info.chain_height)
.map(|height| {
crate::ops::alt_block::get_alt_block(
&AltBlockHeight {
chain_id: chain_id.into(),
height,
},
&tables_mut,
)
})
.collect::<Vec<_>>();
// Add the old main chain blocks back to the main chain.
for res_alt_block in alt_blocks {
let alt_block = res_alt_block?;
let verified_block = map_valid_alt_block_to_verified_block(alt_block);
crate::ops::block::add_block(&verified_block, &mut tables_mut)?;
}
Ok(())
};
match result() {
Ok(()) => {
TxRw::commit(tx_rw)?;
Ok(BlockchainResponse::Ok)
}
Err(e) => {
// INVARIANT: ensure database atomicity by aborting
// the transaction on `add_block()` failures.
TxRw::abort(tx_rw)
.expect("could not maintain database atomicity by aborting write transaction");
Err(e)
}
}
}
/// [`BlockchainWriteRequest::FlushAltBlocks`].
#[inline]
fn flush_alt_blocks(env: &ConcreteEnv) -> ResponseResult {
let env_inner = env.env_inner();
let mut tx_rw = env_inner.tx_rw()?;
let result = crate::ops::alt_block::flush_alt_blocks(&env_inner, &mut tx_rw);
match result {
Ok(()) => {
TxRw::commit(tx_rw)?;
Ok(BlockchainResponse::Ok)
}
Err(e) => {
// INVARIANT: ensure database atomicity by aborting

View file

@ -17,8 +17,9 @@
//---------------------------------------------------------------------------------------------------- Import
use crate::types::{
Amount, AmountIndex, AmountIndices, BlockBlob, BlockHash, BlockHeight, BlockInfo, KeyImage,
Output, PreRctOutputId, PrunableBlob, PrunableHash, PrunedBlob, RctOutput, TxBlob, TxHash,
AltBlockHeight, AltChainInfo, AltTransactionInfo, Amount, AmountIndex, AmountIndices,
BlockBlob, BlockHash, BlockHeight, BlockInfo, CompactAltBlockInfo, KeyImage, Output,
PreRctOutputId, PrunableBlob, PrunableHash, PrunedBlob, RawChainId, RctOutput, TxBlob, TxHash,
TxId, UnlockTime,
};
@ -129,6 +130,40 @@ cuprate_database::define_tables! {
/// Transactions without unlock times will not exist in this table.
14 => TxUnlockTime,
TxId => UnlockTime,
/// Information on alt-chains.
15 => AltChainInfos,
RawChainId => AltChainInfo,
/// Alt-block heights.
///
/// Contains the height of all alt-blocks.
16 => AltBlockHeights,
BlockHash => AltBlockHeight,
/// Alt-block information.
///
/// Contains information on all alt-blocks.
17 => AltBlocksInfo,
AltBlockHeight => CompactAltBlockInfo,
/// Alt-block blobs.
///
/// Contains the raw bytes of all alt-blocks.
18 => AltBlockBlobs,
AltBlockHeight => BlockBlob,
/// Alt-Block transactions blobs.
///
/// Contains the raw bytes of alt transactions, if those transactions are not in the main-chain.
19 => AltTransactionBlobs,
TxHash => TxBlob,
/// Alt-Block transactions information.
///
/// Contains information on all alt transactions, even if they are in the main-chain.
20 => AltTransactionInfos,
TxHash => AltTransactionInfo,
}
//---------------------------------------------------------------------------------------------------- Tests

View file

@ -10,6 +10,7 @@ use std::{borrow::Cow, fmt::Debug};
use pretty_assertions::assert_eq;
use cuprate_database::{ConcreteEnv, DatabaseRo, Env, EnvInner};
use cuprate_types::{AltBlockInformation, ChainId, VerifiedBlockInformation};
use crate::{
config::ConfigBuilder,
@ -88,3 +89,21 @@ pub(crate) fn assert_all_tables_are_empty(env: &ConcreteEnv) {
assert!(tables.all_tables_empty().unwrap());
assert_eq!(crate::ops::tx::get_num_tx(tables.tx_ids()).unwrap(), 0);
}
pub(crate) fn map_verified_block_to_alt(
verified_block: VerifiedBlockInformation,
chain_id: ChainId,
) -> AltBlockInformation {
AltBlockInformation {
block: verified_block.block,
block_blob: verified_block.block_blob,
txs: verified_block.txs,
block_hash: verified_block.block_hash,
pow_hash: verified_block.pow_hash,
height: verified_block.height,
weight: verified_block.weight,
long_term_weight: verified_block.long_term_weight,
cumulative_difficulty: verified_block.cumulative_difficulty,
chain_id,
}
}

View file

@ -41,12 +41,14 @@
#![forbid(unsafe_code)] // if you remove this line i will steal your monero
//---------------------------------------------------------------------------------------------------- Import
use bytemuck::{Pod, Zeroable};
use std::num::NonZero;
use bytemuck::{Pod, Zeroable};
#[cfg(feature = "serde")]
use serde::{Deserialize, Serialize};
use cuprate_database::{Key, StorableVec};
use cuprate_types::{Chain, ChainId};
//---------------------------------------------------------------------------------------------------- Aliases
// These type aliases exist as many Monero-related types are the exact same.
@ -187,7 +189,7 @@ pub struct BlockInfo {
/// The adjusted block size, in bytes.
///
/// See [`block_weight`](https://monero-book.cuprate.org/consensus_rules/blocks/weights.html#blocks-weight).
pub weight: u64,
pub weight: usize,
/// Least-significant 64 bits of the 128-bit cumulative difficulty.
pub cumulative_difficulty_low: u64,
/// Most-significant 64 bits of the 128-bit cumulative difficulty.
@ -199,7 +201,7 @@ pub struct BlockInfo {
/// The long term block weight, based on the median weight of the preceding `100_000` blocks.
///
/// See [`long_term_weight`](https://monero-book.cuprate.org/consensus_rules/blocks/weights.html#long-term-block-weight).
pub long_term_weight: u64,
pub long_term_weight: usize,
}
//---------------------------------------------------------------------------------------------------- OutputFlags
@ -324,6 +326,259 @@ pub struct RctOutput {
}
// TODO: local_index?
//---------------------------------------------------------------------------------------------------- RawChain
/// [`Chain`] in a format which can be stored in the DB.
///
/// Implements [`Into`] and [`From`] for [`Chain`].
///
/// ```rust
/// # use std::borrow::*;
/// # use cuprate_blockchain::{*, types::*};
/// use cuprate_database::Storable;
/// use cuprate_types::Chain;
///
/// // Assert Storable is correct.
/// let a: RawChain = Chain::Main.into();
/// let b = Storable::as_bytes(&a);
/// let c: RawChain = Storable::from_bytes(b);
/// assert_eq!(a, c);
/// ```
///
/// # Size & Alignment
/// ```rust
/// # use cuprate_blockchain::types::*;
/// assert_eq!(size_of::<RawChain>(), 8);
/// assert_eq!(align_of::<RawChain>(), 8);
/// ```
#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
#[repr(transparent)]
pub struct RawChain(u64);
impl From<Chain> for RawChain {
fn from(value: Chain) -> Self {
match value {
Chain::Main => Self(0),
Chain::Alt(chain_id) => Self(chain_id.0.get()),
}
}
}
impl From<RawChain> for Chain {
fn from(value: RawChain) -> Self {
NonZero::new(value.0).map_or(Self::Main, |id| Self::Alt(ChainId(id)))
}
}
impl From<RawChainId> for RawChain {
fn from(value: RawChainId) -> Self {
// A [`ChainID`] with an inner value of `0` is invalid.
assert_ne!(value.0, 0);
Self(value.0)
}
}
//---------------------------------------------------------------------------------------------------- RawChainId
/// [`ChainId`] in a format which can be stored in the DB.
///
/// Implements [`Into`] and [`From`] for [`ChainId`].
///
/// ```rust
/// # use std::borrow::*;
/// # use cuprate_blockchain::{*, types::*};
/// use cuprate_database::Storable;
/// use cuprate_types::ChainId;
///
/// // Assert Storable is correct.
/// let a: RawChainId = ChainId(10.try_into().unwrap()).into();
/// let b = Storable::as_bytes(&a);
/// let c: RawChainId = Storable::from_bytes(b);
/// assert_eq!(a, c);
/// ```
///
/// # Size & Alignment
/// ```rust
/// # use cuprate_blockchain::types::*;
/// assert_eq!(size_of::<RawChainId>(), 8);
/// assert_eq!(align_of::<RawChainId>(), 8);
/// ```
#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
#[repr(transparent)]
pub struct RawChainId(u64);
impl From<ChainId> for RawChainId {
fn from(value: ChainId) -> Self {
Self(value.0.get())
}
}
impl From<RawChainId> for ChainId {
fn from(value: RawChainId) -> Self {
Self(NonZero::new(value.0).expect("RawChainId mut not have a value of `0`"))
}
}
impl Key for RawChainId {}
//---------------------------------------------------------------------------------------------------- AltChainInfo
/// Information on an alternative chain.
///
/// ```rust
/// # use std::borrow::*;
/// # use cuprate_blockchain::{*, types::*};
/// use cuprate_database::Storable;
/// use cuprate_types::Chain;
///
/// // Assert Storable is correct.
/// let a: AltChainInfo = AltChainInfo {
/// parent_chain: Chain::Main.into(),
/// common_ancestor_height: 0,
/// chain_height: 1,
/// };
/// let b = Storable::as_bytes(&a);
/// let c: AltChainInfo = Storable::from_bytes(b);
/// assert_eq!(a, c);
/// ```
///
/// # Size & Alignment
/// ```rust
/// # use cuprate_blockchain::types::*;
/// assert_eq!(size_of::<AltChainInfo>(), 24);
/// assert_eq!(align_of::<AltChainInfo>(), 8);
/// ```
#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
#[repr(C)]
pub struct AltChainInfo {
/// The chain this alt chain forks from.
pub parent_chain: RawChain,
/// The height of the first block we share with the parent chain.
pub common_ancestor_height: usize,
/// The chain height of the blocks in this alt chain.
pub chain_height: usize,
}
//---------------------------------------------------------------------------------------------------- AltBlockHeight
/// Represents the height of a block on an alt-chain.
///
/// ```rust
/// # use std::borrow::*;
/// # use cuprate_blockchain::{*, types::*};
/// use cuprate_database::Storable;
/// use cuprate_types::ChainId;
///
/// // Assert Storable is correct.
/// let a: AltBlockHeight = AltBlockHeight {
/// chain_id: ChainId(1.try_into().unwrap()).into(),
/// height: 1,
/// };
/// let b = Storable::as_bytes(&a);
/// let c: AltBlockHeight = Storable::from_bytes(b);
/// assert_eq!(a, c);
/// ```
///
/// # Size & Alignment
/// ```rust
/// # use cuprate_blockchain::types::*;
/// assert_eq!(size_of::<AltBlockHeight>(), 16);
/// assert_eq!(align_of::<AltBlockHeight>(), 8);
/// ```
#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
#[repr(C)]
pub struct AltBlockHeight {
/// The [`ChainId`] of the chain this alt block is on, in raw form.
pub chain_id: RawChainId,
/// The height of this alt-block.
pub height: usize,
}
impl Key for AltBlockHeight {}
//---------------------------------------------------------------------------------------------------- CompactAltBlockInfo
/// Represents information on an alt-chain.
///
/// ```rust
/// # use std::borrow::*;
/// # use cuprate_blockchain::{*, types::*};
/// use cuprate_database::Storable;
///
/// // Assert Storable is correct.
/// let a: CompactAltBlockInfo = CompactAltBlockInfo {
/// block_hash: [1; 32],
/// pow_hash: [2; 32],
/// height: 10,
/// weight: 20,
/// long_term_weight: 30,
/// cumulative_difficulty_low: 40,
/// cumulative_difficulty_high: 50,
/// };
///
/// let b = Storable::as_bytes(&a);
/// let c: CompactAltBlockInfo = Storable::from_bytes(b);
/// assert_eq!(a, c);
/// ```
///
/// # Size & Alignment
/// ```rust
/// # use cuprate_blockchain::types::*;
/// assert_eq!(size_of::<CompactAltBlockInfo>(), 104);
/// assert_eq!(align_of::<CompactAltBlockInfo>(), 8);
/// ```
#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
#[repr(C)]
pub struct CompactAltBlockInfo {
/// The block's hash.
pub block_hash: [u8; 32],
/// The block's proof-of-work hash.
pub pow_hash: [u8; 32],
/// The block's height.
pub height: usize,
/// The adjusted block size, in bytes.
pub weight: usize,
/// The long term block weight, which is the weight factored in with previous block weights.
pub long_term_weight: usize,
/// The low 64 bits of the cumulative difficulty.
pub cumulative_difficulty_low: u64,
/// The high 64 bits of the cumulative difficulty.
pub cumulative_difficulty_high: u64,
}
//---------------------------------------------------------------------------------------------------- AltTransactionInfo
/// Represents information on an alt transaction.
///
/// ```rust
/// # use std::borrow::*;
/// # use cuprate_blockchain::{*, types::*};
/// use cuprate_database::Storable;
///
/// // Assert Storable is correct.
/// let a: AltTransactionInfo = AltTransactionInfo {
/// tx_weight: 1,
/// fee: 6,
/// tx_hash: [6; 32],
/// };
///
/// let b = Storable::as_bytes(&a);
/// let c: AltTransactionInfo = Storable::from_bytes(b);
/// assert_eq!(a, c);
/// ```
///
/// # Size & Alignment
/// ```rust
/// # use cuprate_blockchain::types::*;
/// assert_eq!(size_of::<AltTransactionInfo>(), 48);
/// assert_eq!(align_of::<AltTransactionInfo>(), 8);
/// ```
#[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash, Pod, Zeroable)]
#[repr(C)]
pub struct AltTransactionInfo {
/// The transaction's weight.
pub tx_weight: usize,
/// The transaction's total fees.
pub fee: u64,
/// The transaction's hash.
pub tx_hash: [u8; 32],
}
//---------------------------------------------------------------------------------------------------- Tests
#[cfg(test)]
mod test {

View file

@ -7,7 +7,7 @@ authors = ["Boog900", "hinto-janai"]
[dependencies]
cuprate-types = { path = "../types" }
cuprate-helper = { path = "../helper", features = ["map"] }
cuprate-helper = { path = "../helper", features = ["map", "tx-utils"] }
cuprate-wire = { path = "../net/wire" }
cuprate-p2p-core = { path = "../p2p/p2p-core", features = ["borsh"] }

View file

@ -25,13 +25,11 @@
//! let tx: VerifiedTransactionInformation = TX_V1_SIG0.clone();
//! ```
mod constants;
pub use constants::{
BLOCK_43BD1F, BLOCK_5ECB7E, BLOCK_BBD604, BLOCK_F91043, TX_2180A8, TX_3BC7FF, TX_84D48D,
TX_9E3F73, TX_B6B439, TX_D7FEBD, TX_E2D393, TX_E57440,
};
pub use statics::{BLOCK_V16_TX0, BLOCK_V1_TX2, BLOCK_V9_TX3, TX_V1_SIG0, TX_V1_SIG2, TX_V2_RCT3};
mod constants;
mod statics;
pub use statics::{
tx_fee, BLOCK_V16_TX0, BLOCK_V1_TX2, BLOCK_V9_TX3, TX_V1_SIG0, TX_V1_SIG2, TX_V2_RCT3,
};

View file

@ -8,12 +8,12 @@
//---------------------------------------------------------------------------------------------------- Import
use std::sync::LazyLock;
use cuprate_helper::map::combine_low_high_bits_to_u128;
use cuprate_types::{VerifiedBlockInformation, VerifiedTransactionInformation};
use hex_literal::hex;
use monero_serai::transaction::Input;
use monero_serai::{block::Block, transaction::Transaction};
use cuprate_helper::{map::combine_low_high_bits_to_u128, tx_utils::tx_fee};
use cuprate_types::{VerifiedBlockInformation, VerifiedTransactionInformation};
use crate::data::constants::{
BLOCK_43BD1F, BLOCK_5ECB7E, BLOCK_F91043, TX_2180A8, TX_3BC7FF, TX_84D48D, TX_9E3F73,
TX_B6B439, TX_D7FEBD, TX_E2D393, TX_E57440,
@ -110,36 +110,6 @@ fn to_tx_verification_data(tx_blob: impl AsRef<[u8]>) -> VerifiedTransactionInfo
}
}
/// Calculates the fee of the [`Transaction`].
///
/// # Panics
/// This will panic if the inputs overflow or the transaction outputs too much.
pub fn tx_fee(tx: &Transaction) -> u64 {
let mut fee = 0_u64;
match &tx {
Transaction::V1 { prefix, .. } => {
for input in &prefix.inputs {
match input {
Input::Gen(_) => return 0,
Input::ToKey { amount, .. } => {
fee = fee.checked_add(amount.unwrap_or(0)).unwrap();
}
}
}
for output in &prefix.outputs {
fee.checked_sub(output.amount.unwrap_or(0)).unwrap();
}
}
Transaction::V2 { proofs, .. } => {
fee = proofs.as_ref().unwrap().base.fee;
}
};
fee
}
//---------------------------------------------------------------------------------------------------- Blocks
/// Generate a `static LazyLock<VerifiedBlockInformation>`.
///
@ -311,12 +281,12 @@ transaction_verification_data! {
//---------------------------------------------------------------------------------------------------- TESTS
#[cfg(test)]
mod tests {
use super::*;
use pretty_assertions::assert_eq;
use crate::rpc::client::HttpRpcClient;
use super::*;
/// Assert the defined blocks are the same compared to ones received from a local RPC call.
#[ignore] // FIXME: doesn't work in CI, we need a real unrestricted node
#[tokio::test]

View file

@ -1,18 +1,16 @@
//! HTTP RPC client.
//---------------------------------------------------------------------------------------------------- Use
use monero_rpc::Rpc;
use monero_serai::block::Block;
use monero_simple_request_rpc::SimpleRequestRpc;
use serde::Deserialize;
use serde_json::json;
use tokio::task::spawn_blocking;
use monero_rpc::Rpc;
use monero_serai::block::Block;
use monero_simple_request_rpc::SimpleRequestRpc;
use cuprate_helper::tx_utils::tx_fee;
use cuprate_types::{VerifiedBlockInformation, VerifiedTransactionInformation};
use crate::data::tx_fee;
//---------------------------------------------------------------------------------------------------- Constants
/// The default URL used for Monero RPC connections.
pub const LOCALHOST_RPC_URL: &str = "http://127.0.0.1:18081";
@ -184,9 +182,10 @@ impl HttpRpcClient {
//---------------------------------------------------------------------------------------------------- TESTS
#[cfg(test)]
mod tests {
use super::*;
use hex_literal::hex;
use super::*;
/// Assert the default address is localhost.
#[tokio::test]
async fn localhost() {

View file

@ -2,14 +2,17 @@
//!
//! Tests that assert particular requests lead to particular
//! responses are also tested in Cuprate's blockchain database crate.
//!
//---------------------------------------------------------------------------------------------------- Import
use std::{
collections::{HashMap, HashSet},
ops::Range,
};
use crate::types::{Chain, ExtendedBlockHeader, OutputOnChain, VerifiedBlockInformation};
use crate::{
types::{Chain, ExtendedBlockHeader, OutputOnChain, VerifiedBlockInformation},
AltBlockInformation, ChainId,
};
//---------------------------------------------------------------------------------------------------- ReadRequest
/// A read request to the blockchain database.
@ -92,26 +95,44 @@ pub enum BlockchainReadRequest {
CompactChainHistory,
/// A request to find the first unknown block ID in a list of block IDs.
////
///
/// # Invariant
/// The [`Vec`] containing the block IDs must be sorted in chronological block
/// order, or else the returned response is unspecified and meaningless,
/// as this request performs a binary search.
FindFirstUnknown(Vec<[u8; 32]>),
/// A request for all alt blocks in the chain with the given [`ChainId`].
AltBlocksInChain(ChainId),
}
//---------------------------------------------------------------------------------------------------- WriteRequest
/// A write request to the blockchain database.
///
/// There is currently only 1 write request to the database,
/// as such, the only valid [`BlockchainResponse`] to this request is
/// the proper response for a [`BlockchainResponse::WriteBlockOk`].
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum BlockchainWriteRequest {
/// Request that a block be written to the database.
///
/// Input is an already verified block.
WriteBlock(VerifiedBlockInformation),
/// Write an alternative block to the database,
///
/// Input is the alternative block.
WriteAltBlock(AltBlockInformation),
/// A request to pop some blocks from the top of the main chain
///
/// Input is the amount of blocks to pop.
///
/// This request flushes all alt-chains from the cache before adding the popped blocks to the
/// alt cache.
PopBlocks(usize),
/// A request to reverse the re-org process.
///
/// The inner value is the [`ChainId`] of the old main chain.
///
/// # Invariant
/// It is invalid to call this with a [`ChainId`] that was not returned from [`BlockchainWriteRequest::PopBlocks`].
ReverseReorg(ChainId),
/// A request to flush all alternative blocks.
FlushAltBlocks,
}
//---------------------------------------------------------------------------------------------------- Response
@ -197,12 +218,24 @@ pub enum BlockchainResponse {
/// This will be [`None`] if all blocks were known.
FindFirstUnknown(Option<(usize, usize)>),
//------------------------------------------------------ Writes
/// Response to [`BlockchainWriteRequest::WriteBlock`].
/// The response for [`BlockchainReadRequest::AltBlocksInChain`].
///
/// This response indicates that the requested block has
/// successfully been written to the database without error.
WriteBlockOk,
/// Contains all the alt blocks in the alt-chain in chronological order.
AltBlocksInChain(Vec<AltBlockInformation>),
//------------------------------------------------------ Writes
/// A generic Ok response to indicate a request was successfully handled.
///
/// currently the response for:
/// - [`BlockchainWriteRequest::WriteBlock`]
/// - [`BlockchainWriteRequest::WriteAltBlock`]
/// - [`BlockchainWriteRequest::ReverseReorg`]
/// - [`BlockchainWriteRequest::FlushAltBlocks`]
Ok,
/// The response for [`BlockchainWriteRequest::PopBlocks`].
///
/// The inner value is the alt-chain ID for the old main chain blocks.
PopBlocks(ChainId),
}
//---------------------------------------------------------------------------------------------------- Tests

View file

@ -1,6 +1,8 @@
//! Various shared data types in Cuprate.
//---------------------------------------------------------------------------------------------------- Import
use std::num::NonZero;
use curve25519_dalek::edwards::EdwardsPoint;
use monero_serai::{
block::Block,
@ -38,8 +40,7 @@ pub struct ExtendedBlockHeader {
//---------------------------------------------------------------------------------------------------- VerifiedTransactionInformation
/// Verified information of a transaction.
///
/// - If this is in a [`VerifiedBlockInformation`] this represents a valid transaction
/// - If this is in an [`AltBlockInformation`] this represents a potentially valid transaction
/// This represents a valid transaction
#[derive(Clone, Debug, PartialEq, Eq)]
pub struct VerifiedTransactionInformation {
/// The transaction itself.
@ -79,6 +80,7 @@ pub struct VerifiedBlockInformation {
/// [`Block::hash`].
pub block_hash: [u8; 32],
/// The block's proof-of-work hash.
// TODO: make this an option.
pub pow_hash: [u8; 32],
/// The block's height.
pub height: usize,
@ -97,7 +99,7 @@ pub struct VerifiedBlockInformation {
///
/// The inner value is meaningless.
#[derive(Debug, Copy, Clone, Ord, PartialOrd, Eq, PartialEq, Hash)]
pub struct ChainId(pub u64);
pub struct ChainId(pub NonZero<u64>);
//---------------------------------------------------------------------------------------------------- Chain
/// An identifier for a chain.