Files
pezkuwi-subxt/substrate/primitives/consensus/pow/src/lib.rs
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Benjamin Kampmann 60e5011c72 Reorganising the repository - external renames and moves (#4074)
* 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
2019-11-14 21:51:17 +01:00

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2.0 KiB
Rust

// Copyright 2017-2019 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/>.
//! Primitives for Substrate Proof-of-Work (PoW) consensus.
#![cfg_attr(not(feature = "std"), no_std)]
use rstd::vec::Vec;
use sr_primitives::ConsensusEngineId;
use codec::Decode;
/// The `ConsensusEngineId` of PoW.
pub const POW_ENGINE_ID: ConsensusEngineId = [b'p', b'o', b'w', b'_'];
/// Type of seal.
pub type Seal = Vec<u8>;
/// Define methods that total difficulty should implement.
pub trait TotalDifficulty {
fn increment(&mut self, other: Self);
}
impl TotalDifficulty for primitives::U256 {
fn increment(&mut self, other: Self) {
let ret = self.saturating_add(other);
*self = ret;
}
}
impl TotalDifficulty for u128 {
fn increment(&mut self, other: Self) {
let ret = self.saturating_add(other);
*self = ret;
}
}
sr_api::decl_runtime_apis! {
/// API necessary for timestamp-based difficulty adjustment algorithms.
pub trait TimestampApi<Moment: Decode> {
/// Return the timestamp in the current block.
fn timestamp() -> Moment;
}
/// API for those chains that put their difficulty adjustment algorithm directly
/// onto runtime. Note that while putting difficulty adjustment algorithm to
/// runtime is safe, putting the PoW algorithm on runtime is not.
pub trait DifficultyApi<Difficulty: Decode> {
/// Return the target difficulty of the next block.
fn difficulty() -> Difficulty;
}
}