mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-30 13:07:56 +00:00
Arkadiy Paronyan
1d5cd20c44
* Reorg test * Fixed informant misreporting reorgs * Update cache when reorg is caused by applying finality * Test for finality reorg * Simplified test * Typo Co-Authored-By: André Silva <andre.beat@gmail.com>
91 lines
3.0 KiB
Rust
91 lines
3.0 KiB
Rust
// Copyright 2017-2019 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate 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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// Substrate 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 Substrate. If not, see <http://www.gnu.org/licenses/>.
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//! Console informant. Prints sync progress and block events. Runs on the calling thread.
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use client::{backend::Backend, BlockchainEvents};
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use futures::{Future, Stream};
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use futures03::{StreamExt as _, TryStreamExt as _};
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use log::{info, warn};
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use sr_primitives::{generic::BlockId, traits::Header};
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use service::{Service, Components};
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use tokio::runtime::TaskExecutor;
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mod display;
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/// Spawn informant on the event loop
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#[deprecated(note = "Please use informant::build instead, and then create the task manually")]
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pub fn start<C>(service: &Service<C>, exit: ::exit_future::Exit, handle: TaskExecutor) where
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C: Components,
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{
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handle.spawn(exit.until(build(service)).map(|_| ()));
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}
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/// Creates an informant in the form of a `Future` that must be polled regularly.
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pub fn build<C>(service: &Service<C>) -> impl Future<Item = (), Error = ()>
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where C: Components {
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let client = service.client();
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let mut display = display::InformantDisplay::new();
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let display_notifications = service.network_status().for_each(move |(net_status, _)| {
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let info = client.info();
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display.display(&info, net_status);
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Ok(())
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});
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let client = service.client();
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let mut last_best = {
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let info = client.info();
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Some((info.chain.best_number, info.chain.best_hash))
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};
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let display_block_import = client.import_notification_stream().map(|v| Ok::<_, ()>(v)).compat().for_each(move |n| {
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// detect and log reorganizations.
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if let Some((ref last_num, ref last_hash)) = last_best {
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if n.header.parent_hash() != last_hash && n.is_new_best {
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let tree_route = ::client::blockchain::tree_route(
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#[allow(deprecated)]
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client.backend().blockchain(),
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BlockId::Hash(last_hash.clone()),
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BlockId::Hash(n.hash),
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);
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match tree_route {
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Ok(ref t) if !t.retracted().is_empty() => info!(
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"Reorg from #{},{} to #{},{}, common ancestor #{},{}",
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last_num, last_hash,
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n.header.number(), n.hash,
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t.common_block().number, t.common_block().hash,
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),
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Ok(_) => {},
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Err(e) => warn!("Error computing tree route: {}", e),
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}
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}
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}
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if n.is_new_best {
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last_best = Some((n.header.number().clone(), n.hash.clone()));
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}
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info!(target: "substrate", "Imported #{} ({})", n.header.number(), n.hash);
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Ok(())
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});
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display_notifications.join(display_block_import)
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.map(|((), ())| ())
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}
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