mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-06 21:58:06 +00:00
Benjamin Kampmann
60e5011c72
* Adding first rough ouline of the repository structure * Remove old CI stuff * add title * formatting fixes * move node-exits job's script to scripts dir * Move docs into subdir * move to bin * move maintainence scripts, configs and helpers into its own dir * add .local to ignore * move core->client * start up 'test' area * move test client * move test runtime * make test move compile * Add dependencies rule enforcement. * Fix indexing. * Update docs to reflect latest changes * Moving /srml->/paint * update docs * move client/sr-* -> primitives/ * clean old readme * remove old broken code in rhd * update lock * Step 1. * starting to untangle client * Fix after merge. * start splitting out client interfaces * move children and blockchain interfaces * Move trie and state-machine to primitives. * Fix WASM builds. * fixing broken imports * more interface moves * move backend and light to interfaces * move CallExecutor * move cli off client * moving around more interfaces * re-add consensus crates into the mix * fix subkey path * relieve client from executor * starting to pull out client from grandpa * move is_decendent_of out of client * grandpa still depends on client directly * lemme tests pass * rename srml->paint * Make it compile. * rename interfaces->client-api * Move keyring to primitives. * fixup libp2p dep * fix broken use * allow dependency enforcement to fail * move fork-tree * Moving wasm-builder * make env * move build-script-utils * fixup broken crate depdencies and names * fix imports for authority discovery * fix typo * update cargo.lock * fixing imports * Fix paths and add missing crates * re-add missing crates
85 lines
2.6 KiB
Rust
85 lines
2.6 KiB
Rust
// Copyright 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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//! Substrate client interfaces.
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// TODO: make internal
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pub mod error;
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pub mod backend;
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pub mod blockchain;
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pub mod light;
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pub mod notifications;
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pub mod call_executor;
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pub mod client;
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pub mod offchain;
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pub use error::*;
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pub use backend::*;
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pub use blockchain::*;
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pub use light::*;
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pub use notifications::*;
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pub use call_executor::*;
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pub use offchain::*;
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pub use client::*;
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pub use state_machine::{StorageProof, ExecutionStrategy};
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/// Utility methods for the client.
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pub mod utils {
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use super::HeaderBackend;
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use header_metadata::HeaderMetadata;
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use crate::error;
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use primitives::H256;
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use sr_primitives::traits::{Block as BlockT};
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use std::borrow::Borrow;
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/// Returns a function for checking block ancestry, the returned function will
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/// return `true` if the given hash (second parameter) is a descendent of the
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/// base (first parameter). If the `current` parameter is defined, it should
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/// represent the current block `hash` and its `parent hash`, if given the
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/// function that's returned will assume that `hash` isn't part of the local DB
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/// yet, and all searches in the DB will instead reference the parent.
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pub fn is_descendent_of<'a, Block: BlockT<Hash=H256>, T, H: Borrow<H256> + 'a>(
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client: &'a T,
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current: Option<(H, H)>,
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) -> impl Fn(&H256, &H256) -> Result<bool, error::Error> + 'a
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where T: HeaderBackend<Block> + HeaderMetadata<Block, Error=error::Error>,
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{
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move |base, hash| {
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if base == hash { return Ok(false); }
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let current = current.as_ref().map(|(c, p)| (c.borrow(), p.borrow()));
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let mut hash = hash;
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if let Some((current_hash, current_parent_hash)) = current {
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if base == current_hash { return Ok(false); }
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if hash == current_hash {
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if base == current_parent_hash {
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return Ok(true);
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} else {
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hash = current_parent_hash;
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}
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}
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}
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let ancestor = header_metadata::lowest_common_ancestor(client, *hash, *base)?;
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Ok(ancestor.hash == *base)
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}
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}
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}
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