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Merge pull request #17 from hirosystems/develop
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@@ -2,3 +2,4 @@ pub mod db_cache; | |
| pub mod index_cache; | ||
| pub mod transaction_cache; | ||
| pub mod transaction_location; | ||
| pub mod utils; | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,134 @@ | ||
| use std::collections::{HashMap, VecDeque}; | ||
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| use chainhook_sdk::{types::bitcoin::TxIn, utils::Context}; | ||
| use lru::LruCache; | ||
| use ordinals::RuneId; | ||
| use tokio_postgres::Transaction; | ||
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| use crate::db::pg_get_input_rune_balances; | ||
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| use super::transaction_cache::InputRuneBalance; | ||
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| /// Takes all transaction inputs and transforms them into rune balances to be allocated for operations. Looks inside an output LRU | ||
| /// cache and the DB when there are cache misses. | ||
| pub async fn input_rune_balances_from_tx_inputs( | ||
| tx_inputs: &Vec<TxIn>, | ||
| tx_output_cache: &HashMap<(String, u32), HashMap<RuneId, Vec<InputRuneBalance>>>, | ||
| output_cache: &mut LruCache<(String, u32), HashMap<RuneId, Vec<InputRuneBalance>>>, | ||
| db_tx: &mut Transaction<'_>, | ||
| ctx: &Context, | ||
| ) -> HashMap<RuneId, VecDeque<InputRuneBalance>> { | ||
| // Maps input index to all of its rune balances. Useful in order to keep rune inputs in order. | ||
| let mut indexed_input_runes = HashMap::new(); | ||
| let mut cache_misses = vec![]; | ||
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| // Look in both current transaction output cache and in long term LRU cache. | ||
| for (i, input) in tx_inputs.iter().enumerate() { | ||
| let tx_id = input.previous_output.txid.hash[2..].to_string(); | ||
| let vout = input.previous_output.vout; | ||
| let k = (tx_id.clone(), vout); | ||
| if let Some(map) = tx_output_cache.get(&k) { | ||
| indexed_input_runes.insert(i as u32, map.clone()); | ||
| } else if let Some(map) = output_cache.get(&k) { | ||
| indexed_input_runes.insert(i as u32, map.clone()); | ||
| } else { | ||
| cache_misses.push((i as u32, tx_id, vout)); | ||
| } | ||
| } | ||
| // Look for cache misses in database. We don't need to `flush` the DB cache here because we've already looked in the current | ||
| // transaction's output cache. | ||
| if cache_misses.len() > 0 { | ||
| let output_balances = pg_get_input_rune_balances(cache_misses, db_tx, ctx).await; | ||
| indexed_input_runes.extend(output_balances); | ||
| } | ||
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| let mut final_input_runes: HashMap<RuneId, VecDeque<InputRuneBalance>> = HashMap::new(); | ||
| let mut input_keys: Vec<u32> = indexed_input_runes.keys().copied().collect(); | ||
| input_keys.sort(); | ||
| for key in input_keys.iter() { | ||
| let input_value = indexed_input_runes.get(key).unwrap(); | ||
| for (rune_id, vec) in input_value.iter() { | ||
| if let Some(rune) = final_input_runes.get_mut(rune_id) { | ||
| rune.extend(vec.clone()); | ||
| } else { | ||
| final_input_runes.insert(*rune_id, VecDeque::from(vec.clone())); | ||
| } | ||
| } | ||
| } | ||
| final_input_runes | ||
| } | ||
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| /// Moves data from the current transaction's output cache to the long-term LRU output cache. Clears the tx output cache when | ||
| /// done. | ||
| pub fn move_tx_output_cache_to_output_cache( | ||
| tx_output_cache: &mut HashMap<(String, u32), HashMap<RuneId, Vec<InputRuneBalance>>>, | ||
| output_cache: &mut LruCache<(String, u32), HashMap<RuneId, Vec<InputRuneBalance>>>, | ||
| ) { | ||
| for (k, tx_output_map) in tx_output_cache.iter() { | ||
| if let Some(v) = output_cache.get_mut(&k) { | ||
| for (rune_id, balances) in tx_output_map.iter() { | ||
| if let Some(rune_balance) = v.get_mut(&rune_id) { | ||
| rune_balance.extend(balances.clone()); | ||
| } else { | ||
| v.insert(*rune_id, balances.clone()); | ||
| } | ||
| } | ||
| } else { | ||
| output_cache.push(k.clone(), tx_output_map.clone()); | ||
| } | ||
| } | ||
| tx_output_cache.clear(); | ||
| } | ||
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| #[cfg(test)] | ||
| mod test { | ||
| // use std::{collections::HashMap, num::NonZeroUsize, str::FromStr}; | ||
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| // use chainhook_sdk::{ | ||
| // types::{ | ||
| // bitcoin::{OutPoint, TxIn}, | ||
| // TransactionIdentifier, | ||
| // }, | ||
| // utils::Context, | ||
| // }; | ||
| // use lru::LruCache; | ||
| // use ordinals::RuneId; | ||
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| // use crate::db::cache::transaction_cache::InputRuneBalance; | ||
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| // #[test] | ||
| // fn from_output_cache() { | ||
| // let tx_inputs = vec![TxIn { | ||
| // previous_output: OutPoint { | ||
| // txid: TransactionIdentifier { | ||
| // hash: "aea76e5ef8135851d0387074cf7672013779e4506e56122e0e698e12ede62681" | ||
| // .to_string(), | ||
| // }, | ||
| // vout: 2, | ||
| // value: 100, | ||
| // block_height: 848300, | ||
| // }, | ||
| // script_sig: "".to_string(), | ||
| // sequence: 1, | ||
| // witness: vec![], | ||
| // }]; | ||
| // let mut value = HashMap::new(); | ||
| // value.insert( | ||
| // RuneId::from_str("840000:1").unwrap(), | ||
| // vec![InputRuneBalance { | ||
| // address: Some("1EDYZPvGqKzZYp6DoTtcgXwvSAkA9d9UKU".to_string()), | ||
| // amount: 10000, | ||
| // }], | ||
| // ); | ||
| // let mut output_cache: LruCache<(String, u32), HashMap<RuneId, Vec<InputRuneBalance>>> = | ||
| // LruCache::new(NonZeroUsize::new(2).unwrap()); | ||
| // output_cache.put( | ||
| // ( | ||
| // "aea76e5ef8135851d0387074cf7672013779e4506e56122e0e698e12ede62681".to_string(), | ||
| // 2, | ||
| // ), | ||
| // value, | ||
| // ); | ||
| // let ctx = Context::empty(); | ||
| // } | ||
| } |
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