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// This file is part of Substrate.

// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0

// This program 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.

// This program 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 this program. If not, see <https://www.gnu.org/licenses/>.

//! Substrate transaction pool implementation.

#![recursion_limit = "256"]
#![warn(missing_docs)]
#![warn(unused_extern_crates)]

mod builder;
mod common;
mod fork_aware_txpool;
mod graph;
mod single_state_txpool;
mod transaction_pool_wrapper;

use common::{api, enactment_state};
use std::sync::Arc;

pub use api::FullChainApi;
pub use builder::{Builder, TransactionPoolHandle, TransactionPoolOptions, TransactionPoolType};
pub use common::notification_future;
pub use fork_aware_txpool::{ForkAwareTxPool, ForkAwareTxPoolTask};
pub use graph::{
	base_pool::{Limit as PoolLimit, TimedTransactionSource},
	ChainApi, Options, Pool,
};
use single_state_txpool::prune_known_txs_for_block;
pub use single_state_txpool::{BasicPool, RevalidationType};
pub use transaction_pool_wrapper::TransactionPoolWrapper;

type BoxedReadyIterator<Hash, Data> = Box<
	dyn sc_transaction_pool_api::ReadyTransactions<
			Item = Arc<graph::base_pool::Transaction<Hash, Data>>,
		> + Send,
>;

type ReadyIteratorFor<PoolApi> =
	BoxedReadyIterator<graph::ExtrinsicHash<PoolApi>, graph::ExtrinsicFor<PoolApi>>;

/// Log target for transaction pool.
///
/// It can be used by other components for logging functionality strictly related to txpool (e.g.
/// importing transaction).
pub const LOG_TARGET: &str = "txpool";