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feat!: add deleted height to unique_id index (#3506)
* feat: add deleted height to unique_id index - adds the spend/deleted height to the asset id index when a unique id UTXO is spent - head unique_id (ie. <asset_pk, unique_id> in current UTXO set) has "special" key in unique_id_index - handle reorg code to update unique_id_index - replace hex string keys with byte keys in kernel and input dbs - add test for fetch_utxo_by_unique_id with deleted height param * fix lil clippy * fix more clippy
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| // Copyright 2021, The Tari Project | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without modification, are permitted provided that the | ||
| // following conditions are met: | ||
| // | ||
| // 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following | ||
| // disclaimer. | ||
| // | ||
| // 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the | ||
| // following disclaimer in the documentation and/or other materials provided with the distribution. | ||
| // | ||
| // 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote | ||
| // products derived from this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
| // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
| // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | ||
| // USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
|
|
||
| use crate::chain_storage::ChainStorageError; | ||
| use lmdb_zero::error; | ||
| use log::*; | ||
| use serde::{de::DeserializeOwned, Serialize}; | ||
|
|
||
| pub const LOG_TARGET: &str = "c::cs::lmdb_db::lmdb"; | ||
|
|
||
| pub fn serialize<T>(data: &T) -> Result<Vec<u8>, ChainStorageError> | ||
| where T: Serialize { | ||
| let size = bincode::serialized_size(&data).map_err(|e| ChainStorageError::AccessError(e.to_string()))?; | ||
| let mut buf = Vec::with_capacity(size as usize); | ||
| bincode::serialize_into(&mut buf, data).map_err(|e| { | ||
| error!(target: LOG_TARGET, "Could not serialize lmdb: {:?}", e); | ||
| ChainStorageError::AccessError(e.to_string()) | ||
| })?; | ||
| Ok(buf) | ||
| } | ||
|
|
||
| pub fn deserialize<T>(buf_bytes: &[u8]) -> Result<T, error::Error> | ||
| where T: DeserializeOwned { | ||
| bincode::deserialize(buf_bytes) | ||
| .map_err(|e| { | ||
| error!(target: LOG_TARGET, "Could not deserialize lmdb: {:?}", e); | ||
| e | ||
| }) | ||
| .map_err(|e| error::Error::ValRejected(e.to_string())) | ||
| } |
104 changes: 104 additions & 0 deletions
104
base_layer/core/src/chain_storage/lmdb_db/key_prefix_cursor.rs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| // Copyright 2021, The Tari Project | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without modification, are permitted provided that the | ||
| // following conditions are met: | ||
| // | ||
| // 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following | ||
| // disclaimer. | ||
| // | ||
| // 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the | ||
| // following disclaimer in the documentation and/or other materials provided with the distribution. | ||
| // | ||
| // 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote | ||
| // products derived from this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
| // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
| // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | ||
| // USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
|
|
||
| use crate::chain_storage::{lmdb_db::helpers::deserialize, ChainStorageError}; | ||
| use lmdb_zero::{ConstAccessor, Cursor, LmdbResultExt}; | ||
| use serde::de::DeserializeOwned; | ||
| use std::marker::PhantomData; | ||
|
|
||
| pub struct KeyPrefixCursor<'a, V> { | ||
| cursor: Cursor<'a, 'a>, | ||
| value_type: PhantomData<V>, | ||
| prefix_key: &'a [u8], | ||
| access: ConstAccessor<'a>, | ||
| has_seeked: bool, | ||
| } | ||
|
|
||
| impl<'a, V> KeyPrefixCursor<'a, V> | ||
| where V: DeserializeOwned | ||
| { | ||
| pub(super) fn new(cursor: Cursor<'a, 'a>, access: ConstAccessor<'a>, prefix_key: &'a [u8]) -> Self { | ||
| Self { | ||
| cursor, | ||
| access, | ||
| prefix_key, | ||
| value_type: PhantomData, | ||
| has_seeked: false, | ||
| } | ||
| } | ||
|
|
||
| /// Returns the item on or after the key prefix, progressing forwards until the key prefix no longer matches | ||
| pub fn next(&mut self) -> Result<Option<(Vec<u8>, V)>, ChainStorageError> { | ||
| if !self.has_seeked { | ||
| if let Some((k, val)) = self.seek_gte(self.prefix_key)? { | ||
| return Ok(Some((k, val))); | ||
| } | ||
| } | ||
|
|
||
| match self.cursor.next(&self.access).to_opt()? { | ||
| Some((k, v)) => Self::deserialize_if_matches(self.prefix_key, k, v), | ||
| None => Ok(None), | ||
| } | ||
| } | ||
|
|
||
| /// Returns the item on or before the given seek key, progressing backwards until the key prefix no longer matches | ||
| pub fn prev(&mut self) -> Result<Option<(Vec<u8>, V)>, ChainStorageError> { | ||
| if !self.has_seeked { | ||
| let prefix_key = self.prefix_key; | ||
| if let Some((k, val)) = self.seek_gte(prefix_key)? { | ||
| // seek_range_k returns the greater key, so we only want to return the current value that was seeked to | ||
| // if it exactly matches the prefix_key | ||
| if k == prefix_key { | ||
| return Ok(Some((k, val))); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| match self.cursor.prev(&self.access).to_opt()? { | ||
| Some((k, v)) => Self::deserialize_if_matches(self.prefix_key, k, v), | ||
| None => Ok(None), | ||
| } | ||
| } | ||
|
|
||
| pub fn seek_gte(&mut self, key: &[u8]) -> Result<Option<(Vec<u8>, V)>, ChainStorageError> { | ||
| self.has_seeked = true; | ||
| let seek_result = self.cursor.seek_range_k(&self.access, key).to_opt()?; | ||
| let (k, v) = match seek_result { | ||
| Some(r) => r, | ||
| None => return Ok(None), | ||
| }; | ||
| Self::deserialize_if_matches(key, k, v) | ||
| } | ||
|
|
||
| fn deserialize_if_matches( | ||
| key_prefix: &[u8], | ||
| k: &[u8], | ||
| v: &[u8], | ||
| ) -> Result<Option<(Vec<u8>, V)>, ChainStorageError> { | ||
| let prefix_len = key_prefix.len(); | ||
| if k.len() < prefix_len || k[..prefix_len] != *key_prefix { | ||
| return Ok(None); | ||
| } | ||
| let val = deserialize::<V>(v)?; | ||
| Ok(Some((k.to_vec(), val))) | ||
| } | ||
| } |
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