/
mod.rs
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/
mod.rs
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mod key;
mod types;
use std::collections::BTreeMap;
use std::fmt;
use std::io;
use ckb_sdk::{Address, GenesisInfo, NetworkType};
use ckb_types::{
core::{BlockView, HeaderView},
packed::{Byte32, Header, OutPoint, Script},
prelude::*,
};
use rocksdb::{ColumnFamily, DB};
use crate::{KVReader, KVTxn, RocksReader, RocksTxn};
pub use key::{Key, KeyMetrics, KeyType};
pub use types::{CellIndex, HashType, LiveCellInfo, TxInfo};
use types::BlockDeltaInfo;
// NOTE: You should reopen to increase database size when processed enough blocks
// [reference]: https://stackoverflow.com/a/33571804
pub struct IndexDatabase<'a> {
db: &'a DB,
cf: &'a ColumnFamily,
// network: NetworkType,
genesis_info: GenesisInfo,
last_header: Option<HeaderView>,
tip_header: HeaderView,
init_block_buf: Vec<BlockView>,
// Disable record tx info by default
enable_explorer: bool,
}
impl<'a> IndexDatabase<'a> {
pub fn from_db(
db: &'a DB,
cf: &'a ColumnFamily,
network: NetworkType,
genesis_info: GenesisInfo,
enable_explorer: bool,
) -> Result<IndexDatabase<'a>, IndexError> {
let genesis_header = genesis_info.header().clone();
assert_eq!(genesis_header.number(), 0);
let (genesis_hash_opt, network_opt): (Option<Byte32>, Option<NetworkType>) = {
let reader = RocksReader::new(db, cf);
let genesis_hash_opt = reader
.get(&Key::GenesisHash.to_bytes())
.map(|bytes| Byte32::from_slice(&bytes).unwrap());
let network_opt = reader
.get(&Key::Network.to_bytes())
.map(|bytes| NetworkType::from_u8(bytes[0]).unwrap());
(genesis_hash_opt, network_opt)
};
if let Some(genesis_hash) = genesis_hash_opt {
if network_opt != Some(network) {
return Err(IndexError::InvalidNetworkType(format!(
"expected: {}, found: {:?}",
network, network_opt
)));
}
let hash: Byte32 = genesis_header.hash();
if genesis_hash != hash {
return Err(IndexError::InvalidGenesis(format!(
"{:#x}, expected: {:#x}",
genesis_hash, hash,
)));
}
} else {
log::info!("genesis not found, init db");
let mut writer = RocksTxn::new(db, cf);
writer.put_pair(Key::pair_network(network));
writer.put_pair(Key::pair_genesis_hash(&genesis_header.hash().unpack()));
writer.commit();
}
let last_header = RocksReader::new(db, cf)
.get(&Key::LastHeader.to_bytes())
.map(|bytes| Header::new_unchecked(bytes.into()).into_view());
Ok(IndexDatabase {
db,
cf,
// network,
last_header,
genesis_info,
tip_header: genesis_header,
init_block_buf: Vec::new(),
enable_explorer,
})
}
pub fn apply_next_block(&mut self, block: BlockView) -> Result<(), IndexError> {
let number = block.header().number();
let block_hash = block.header().hash();
if let Some(last_header) = self.last_header.clone() {
if number != last_header.number() + 1 {
return Err(IndexError::InvalidBlockNumber(number));
}
if block.header().parent_hash() != last_header.hash() {
if number == 1 {
return Err(IndexError::IllegalBlock(block_hash));
}
log::warn!("Rollback because of block: {:#x}", block_hash);
self.init_block_buf.clear();
// Reload last header
let last_block_delta: BlockDeltaInfo = {
let reader = RocksReader::new(self.db, self.cf);
let last_header: HeaderView = reader
.get(&Key::LastHeader.to_bytes())
.map(|bytes| Header::new_unchecked(bytes.into()).into_view())
.unwrap();
reader
.get(&Key::BlockDelta(last_header.number()).to_bytes())
.map(|bytes| bincode::deserialize(&bytes).unwrap())
.unwrap()
};
let mut txn = RocksTxn::new(self.db, self.cf);
last_block_delta.rollback(&mut txn);
txn.commit();
self.last_header = last_block_delta.parent_header();
return Ok(());
}
if number > self.tip_header.number() {
return Err(IndexError::BlockImmature(number));
}
self.apply_block_unchecked(block);
Ok(())
} else if number == 0 {
let genesis_hash = self.genesis_info.header().hash();
if block_hash != genesis_hash {
Err(IndexError::InvalidGenesis(format!(
"{:#x}, expected: {:#x}",
block_hash, genesis_hash,
)))
} else {
self.apply_block_unchecked(block);
Ok(())
}
} else {
Err(IndexError::NotInit)
}
}
pub fn update_tip(&mut self, header: HeaderView) {
self.tip_header = header
}
pub fn last_header(&self) -> Option<&HeaderView> {
self.last_header.as_ref()
}
pub fn last_number(&self) -> Option<u64> {
self.last_header.as_ref().map(HeaderView::number)
}
pub fn next_number(&self) -> Option<u64> {
self.last_number().map(|number| number + 1)
}
fn get_address_inner(&self, reader: &RocksReader, lock_hash: Byte32) -> Option<Address> {
reader
.get(&Key::LockScript(lock_hash.unpack()).to_bytes())
.and_then(|bytes| {
let script = Script::new_unchecked(bytes.into());
Address::from_lock_arg(&script.args().raw_data()).ok()
})
}
pub fn get_capacity(&self, lock_hash: Byte32) -> Option<u64> {
let reader = RocksReader::new(self.db, self.cf);
reader
.get(&Key::LockTotalCapacity(lock_hash.unpack()).to_bytes())
.map(|bytes| {
let mut data = [0u8; 8];
data.copy_from_slice(&bytes[..8]);
u64::from_le_bytes(data)
})
}
pub fn get_lock_hash_by_address(&self, address: Address) -> Option<Byte32> {
let reader = RocksReader::new(self.db, self.cf);
reader
.get(&Key::SecpAddrLock(address).to_bytes())
.map(|bytes| Byte32::from_slice(&bytes).unwrap())
}
pub fn get_lock_script_by_hash(&self, lock_hash: Byte32) -> Option<Script> {
let reader = RocksReader::new(self.db, self.cf);
reader
.get(&Key::LockScript(lock_hash.unpack()).to_bytes())
.map(|bytes| Script::new_unchecked(bytes.into()))
}
// pub fn get_address(&self, lock_hash: Byte32) -> Option<Address> {
// let reader = env_read.read().unwrap();
// self.get_address_inner(&reader, lock_hash)
// }
pub fn get_live_cells_by_lock<F: FnMut(usize, &LiveCellInfo) -> (bool, bool)>(
&self,
lock_hash: Byte32,
from_number: Option<u64>,
terminator: F,
) -> Vec<LiveCellInfo> {
let key_prefix = Key::LockLiveCellIndexPrefix(lock_hash.clone().unpack(), None);
let key_start = Key::LockLiveCellIndexPrefix(lock_hash.unpack(), from_number);
self.get_live_cell_infos(key_prefix, key_start, terminator)
}
pub fn get_live_cells_by_type<F: FnMut(usize, &LiveCellInfo) -> (bool, bool)>(
&self,
type_hash: Byte32,
from_number: Option<u64>,
terminator: F,
) -> Vec<LiveCellInfo> {
let key_prefix = Key::TypeLiveCellIndexPrefix(type_hash.clone().unpack(), None);
let key_start = Key::TypeLiveCellIndexPrefix(type_hash.unpack(), from_number);
self.get_live_cell_infos(key_prefix, key_start, terminator)
}
pub fn get_live_cells_by_code<F: FnMut(usize, &LiveCellInfo) -> (bool, bool)>(
&self,
code_hash: Byte32,
from_number: Option<u64>,
terminator: F,
) -> Vec<LiveCellInfo> {
let key_prefix = Key::CodeLiveCellIndexPrefix(code_hash.clone().unpack(), None);
let key_start = Key::CodeLiveCellIndexPrefix(code_hash.unpack(), from_number);
self.get_live_cell_infos(key_prefix, key_start, terminator)
}
pub fn get_live_cell_infos<F: FnMut(usize, &LiveCellInfo) -> (bool, bool)>(
&self,
key_prefix: Key,
key_start: Key,
mut terminator: F,
) -> Vec<LiveCellInfo> {
fn get_live_cell_info(reader: &RocksReader, out_point: OutPoint) -> Option<LiveCellInfo> {
reader
.get(&Key::LiveCellMap(out_point).to_bytes())
.map(|bytes| bincode::deserialize(&bytes).unwrap())
}
let reader = RocksReader::new(self.db, self.cf);
let key_prefix = key_prefix.to_bytes();
let key_start = key_start.to_bytes();
let mut infos = Vec::new();
for (idx, (key_bytes, value_bytes)) in reader.iter_from(&key_start).enumerate() {
if key_bytes[..key_prefix.len()] != key_prefix[..] {
log::debug!("Reach the end of this lock");
break;
}
let out_point = OutPoint::new_unchecked(value_bytes.into());
let live_cell_info = get_live_cell_info(&reader, out_point).unwrap();
let (stop, push_info) = terminator(idx, &live_cell_info);
if push_info {
infos.push(live_cell_info);
}
if stop {
log::trace!("Stop search");
break;
}
}
infos
}
pub fn get_top_n(&self, n: usize) -> Vec<(Byte32, Option<Address>, u64)> {
let reader = RocksReader::new(self.db, self.cf);
let key_prefix: Vec<u8> = KeyType::LockTotalCapacityIndex.to_bytes();
let mut pairs = Vec::new();
for (key_bytes, _) in reader.iter_from(&key_prefix) {
if key_bytes[..key_prefix.len()] != key_prefix[..] {
log::debug!("Reach the end of this type");
break;
}
if let Key::LockTotalCapacityIndex(capacity, lock_hash) = Key::from_bytes(&key_bytes) {
let address_opt = self.get_address_inner(&reader, lock_hash.clone().pack());
pairs.push((lock_hash.pack(), address_opt, capacity));
} else {
panic!("Got invalid key: {:?}", key_bytes);
}
if pairs.len() >= n {
break;
}
}
pairs
}
fn apply_block_unchecked(&mut self, block: BlockView) {
let header = block.header();
let block_hash = header.hash();
log::debug!("Block: {} => {:x}", header.number(), block_hash);
// TODO: should forbid query when Init
self.last_header = Some(header.clone());
let blocks = if self.last_number().unwrap() < self.tip_header.number().saturating_sub(256) {
self.init_block_buf.push(block);
if self.init_block_buf.len() >= 200 {
self.init_block_buf.split_off(0)
} else {
Vec::new()
}
} else {
let mut blocks = self.init_block_buf.split_off(0);
blocks.push(block);
blocks
};
let secp_data_hash = self.genesis_info.secp_data_hash();
let secp_type_hash = self.genesis_info.secp_type_hash();
let mut txn = RocksTxn::new(self.db, self.cf);
for block in blocks {
let block_delta_info =
BlockDeltaInfo::from_block(&block, &txn, secp_data_hash, secp_type_hash);
let number = block_delta_info.number();
let hash = block_delta_info.hash();
let result = block_delta_info.apply(&mut txn, self.enable_explorer);
log::info!(
"Block: {} => {:x} (chain_capacity={}, delta={}), txs={}, cell-removed={}, cell-added={}",
number,
hash,
result.chain_capacity,
result.capacity_delta,
result.txs,
result.cell_removed,
result.cell_added,
);
}
txn.commit();
}
pub fn get_metrics(&self, key_type_opt: Option<KeyType>) -> BTreeMap<KeyType, KeyMetrics> {
let mut key_types = BTreeMap::default();
if let Some(key_type) = key_type_opt {
key_types.insert(key_type, KeyMetrics::default());
} else {
let mut types = vec![
KeyType::GenesisHash,
KeyType::Network,
KeyType::LastHeader,
KeyType::TotalCapacity,
KeyType::SecpAddrLock,
KeyType::RecentHeader,
KeyType::BlockDelta,
KeyType::LiveCellMap,
KeyType::LiveCellIndex,
KeyType::LockScript,
KeyType::LockTotalCapacity,
KeyType::LockTotalCapacityIndex,
KeyType::LockLiveCellIndex,
KeyType::TypeLiveCellIndex,
KeyType::CodeLiveCellIndex,
];
if self.enable_explorer {
types.extend(vec![KeyType::TxMap, KeyType::LockTx, KeyType::GlobalHash]);
}
for key_type in types {
key_types.insert(key_type, KeyMetrics::default());
}
}
let reader = RocksReader::new(self.db, self.cf);
for (key_type, metrics) in &mut key_types {
let key_prefix = key_type.to_bytes();
for (key_bytes, value_bytes) in reader.iter_from(&key_prefix) {
if key_bytes[..key_prefix.len()] != key_prefix[..] {
log::debug!("Reach the end of this lock");
break;
}
metrics.add_pair(&key_bytes, &value_bytes);
}
}
key_types
}
}
#[derive(Debug, Clone, Eq, PartialEq)]
pub enum IndexError {
BlockImmature(u64),
IllegalBlock(Byte32),
InvalidBlockNumber(u64),
BlockInvalid(String),
NotInit,
IoError(String),
InvalidGenesis(String),
InvalidNetworkType(String),
}
impl From<io::Error> for IndexError {
fn from(err: io::Error) -> IndexError {
IndexError::IoError(err.to_string())
}
}
impl fmt::Display for IndexError {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
write!(f, "{:?}", self)
}
}