Files
pezkuwi-subxt/substrate/core/transaction-pool/src/api.rs
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thiolliere 4ed67e03a4 Update to parity-scale-codec (#3232)
* WIP: update codec

* WIP

* compiling

* WIP

* rename parity-scale-codec to codec

* WIP

* fix

* remove old comments

* use published crates

* fix expected error msg

* bump version

* fmt and fix

* remove old comment

* fix wrong decoding impl

* implement encode like for structures

* undo removal of old pending changes

* trailingzeroinput

* Apply suggestions from code review

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>
Co-Authored-By: DemiMarie-parity <48690212+DemiMarie-parity@users.noreply.github.com>

* update codec

* fmt

* version is 1.0.0

* show more error

* fmt
2019-08-06 19:36:23 +02:00

84 lines
2.3 KiB
Rust

// Copyright 2018-2019 Parity Technologies (UK) Ltd.
// This file is part of Substrate.
// Substrate is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Substrate is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
//! Chain api required for the transaction pool.
use std::{
sync::Arc,
marker::PhantomData,
};
use client::{runtime_api::TaggedTransactionQueue, blockchain::HeaderBackend};
use codec::Encode;
use txpool;
use primitives::{
H256,
Blake2Hasher,
Hasher,
};
use sr_primitives::{
generic::BlockId,
traits,
transaction_validity::TransactionValidity,
};
use crate::error;
/// The transaction pool logic
pub struct ChainApi<T, Block> {
client: Arc<T>,
_marker: PhantomData<Block>,
}
impl<T, Block> ChainApi<T, Block> where
Block: traits::Block,
T: traits::ProvideRuntimeApi + HeaderBackend<Block> {
/// Create new transaction pool logic.
pub fn new(client: Arc<T>) -> Self {
ChainApi {
client,
_marker: Default::default()
}
}
}
impl<T, Block> txpool::ChainApi for ChainApi<T, Block> where
Block: traits::Block<Hash=H256>,
T: traits::ProvideRuntimeApi + HeaderBackend<Block>,
T::Api: TaggedTransactionQueue<Block>
{
type Block = Block;
type Hash = H256;
type Error = error::Error;
fn validate_transaction(&self, at: &BlockId<Self::Block>, uxt: txpool::ExtrinsicFor<Self>) -> error::Result<TransactionValidity> {
Ok(self.client.runtime_api().validate_transaction(at, uxt)?)
}
fn block_id_to_number(&self, at: &BlockId<Self::Block>) -> error::Result<Option<txpool::NumberFor<Self>>> {
Ok(self.client.block_number_from_id(at)?)
}
fn block_id_to_hash(&self, at: &BlockId<Self::Block>) -> error::Result<Option<txpool::BlockHash<Self>>> {
Ok(self.client.block_hash_from_id(at)?)
}
fn hash_and_length(&self, ex: &txpool::ExtrinsicFor<Self>) -> (Self::Hash, usize) {
ex.using_encoded(|x| {
(Blake2Hasher::hash(x), x.len())
})
}
}