66e4410be7
* Temp storage for the private state added * Temp storage for the private state added * Request message added * Store and retrieve offchain state logic * State sync cache * Private state column added to key value db * Private state column added to key value db * Indexing stored states via its hash * Works with errors changed * Private state stored into the local db * Access to private state db added to sync io * Private state db file added * Rlp packets for retrieiving private state data added * Handling of private sync completed message * Test code fixed * External flag for offchain storing added * Test for private state sync added * Saving private state logic corrected * Migration code corrected * Fixes after merge with master * Merge with head * Additional checks for slices * Log for private state retrieval added * Limit time of retrieving private states * Store required hashes for every request, mark them stale if needed * Store requested private state hashes and check received data * Log stale requests * State insertion fix * Refactoring of how logging passed to state store * Heapsize removed, syncing hashes structure reworked * Check state length returned by contract * Get rid of OverlayDB * hash-db version updated * Test fixed * One more test fixed
78 lines
2.6 KiB
Rust
78 lines
2.6 KiB
Rust
// Copyright 2015-2019 Parity Technologies (UK) Ltd.
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// This file is part of Parity Ethereum.
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// Parity Ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity Ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
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use parking_lot::Mutex;
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use ethereum_types::H256;
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/// Trait which should be implemented by a private transaction handler.
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pub trait PrivateTxHandler: Send + Sync + 'static {
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/// Function called on new private transaction received.
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/// Returns the hash of the imported transaction
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fn import_private_transaction(&self, rlp: &[u8]) -> Result<H256, String>;
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/// Function called on new signed private transaction received.
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/// Returns the hash of the imported transaction
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fn import_signed_private_transaction(&self, rlp: &[u8]) -> Result<H256, String>;
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/// Function called when requested private state retrieved from peer and saved to DB.
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fn private_state_synced(&self, hash: &H256) -> Result<(), String>;
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}
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/// Nonoperative private transaction handler.
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pub struct NoopPrivateTxHandler;
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impl PrivateTxHandler for NoopPrivateTxHandler {
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fn import_private_transaction(&self, _rlp: &[u8]) -> Result<H256, String> {
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Ok(H256::zero())
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}
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fn import_signed_private_transaction(&self, _rlp: &[u8]) -> Result<H256, String> {
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Ok(H256::zero())
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}
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fn private_state_synced(&self, _hash: &H256) -> Result<(), String> {
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Ok(())
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}
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}
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/// Simple private transaction handler. Used for tests.
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#[derive(Default)]
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pub struct SimplePrivateTxHandler {
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/// imported private transactions
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pub txs: Mutex<Vec<Vec<u8>>>,
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/// imported signed private transactions
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pub signed_txs: Mutex<Vec<Vec<u8>>>,
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/// synced private state hash
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pub synced_hash: Mutex<H256>,
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}
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impl PrivateTxHandler for SimplePrivateTxHandler {
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fn import_private_transaction(&self, rlp: &[u8]) -> Result<H256, String> {
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self.txs.lock().push(rlp.to_vec());
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Ok(H256::zero())
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}
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fn import_signed_private_transaction(&self, rlp: &[u8]) -> Result<H256, String> {
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self.signed_txs.lock().push(rlp.to_vec());
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Ok(H256::zero())
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}
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fn private_state_synced(&self, hash: &H256) -> Result<(), String> {
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*self.synced_hash.lock() = *hash;
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Ok(())
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}
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}
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