Make node-template in sync with node. (#3422)

* Make node-template in sync with node. * Update service.rs * Updated babe constants. * Added SignedExtra for CheckVersion in node-template and subkey. * Added CheckVersion SignedExtra for node. * Fixed tests. * Try fix integration test. * Attempt 2 at fixing integration test. * Update node-template/runtime/src/lib.rs
2026-04-27 13:57:58 +00:00 · 2019-08-19 09:17:33 +02:00
parent 8eacdb54de
commit 0bb44f5024
15 changed files with 456 additions and 181 deletions
@@ -9,16 +9,19 @@
 include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));

 use rstd::prelude::*;
-use primitives::{sr25519, OpaqueMetadata, crypto::key_types};
+use primitives::{OpaqueMetadata, crypto::key_types};
 use sr_primitives::{
 	ApplyResult, transaction_validity::TransactionValidity, generic, create_runtime_str,
-	impl_opaque_keys,
+	impl_opaque_keys, AnySignature
 };
-use sr_primitives::traits::{NumberFor, BlakeTwo256, Block as BlockT, StaticLookup, Verify, ConvertInto};
+use sr_primitives::traits::{NumberFor, BlakeTwo256, Block as BlockT, DigestFor, StaticLookup, Verify, ConvertInto};
 use sr_primitives::weights::Weight;
+use babe::{AuthorityId as BabeId};
+use grandpa::{AuthorityId as GrandpaId, AuthorityWeight as GrandpaWeight};
+use grandpa::fg_primitives::{self, ScheduledChange};
 use client::{
 	block_builder::api::{CheckInherentsResult, InherentData, self as block_builder_api},
-	runtime_api, impl_runtime_apis
+	runtime_api as client_api, impl_runtime_apis
 };
 use version::RuntimeVersion;
 #[cfg(feature = "std")]
@@ -32,29 +35,31 @@ pub use balances::Call as BalancesCall;
 pub use sr_primitives::{Permill, Perbill};
 pub use support::{StorageValue, construct_runtime, parameter_types};

-/// Alias to the signature scheme used for Aura authority signatures.
-pub type AuraSignature = consensus_aura::sr25519::AuthoritySignature;
+/// An index to a block.
+pub type BlockNumber = u32;

-/// The Ed25519 pub key of an session that belongs to an Aura authority of the chain.
-pub type AuraId = consensus_aura::sr25519::AuthorityId;
+/// Alias to 512-bit hash when used in the context of a transaction signature on the chain.
+pub type Signature = AnySignature;

-/// Alias to pubkey that identifies an account on the chain.
-pub type AccountId = <AccountSignature as Verify>::Signer;
+/// Some way of identifying an account on the chain. We intentionally make it equivalent
+/// to the public key of our transaction signing scheme.
+pub type AccountId = <Signature as Verify>::Signer;

-/// The type used by authorities to prove their ID.
-pub type AccountSignature = sr25519::Signature;
+/// The type for looking up accounts. We don't expect more than 4 billion of them, but you
+/// never know...
+pub type AccountIndex = u32;
+
+/// Balance of an account.
+pub type Balance = u128;
+
+/// Index of a transaction in the chain.
+pub type Index = u32;

 /// A hash of some data used by the chain.
 pub type Hash = primitives::H256;

-/// Index of a block number in the chain.
-pub type BlockNumber = u32;
-
-/// Index of an account's extrinsic in the chain.
-pub type Nonce = u32;
-
-/// Balance type for the node.
-pub type Balance = u128;
+/// Digest item type.
+pub type DigestItem = generic::DigestItem<Hash>;

 /// Used for the module template in `./template.rs`
 mod template;
@@ -75,10 +80,14 @@ pub mod opaque {
 	/// Opaque block identifier type.
 	pub type BlockId = generic::BlockId<Block>;

+	pub type SessionHandlers = (Grandpa, Babe);
+
 	impl_opaque_keys! {
 		pub struct SessionKeys {
-			#[id(key_types::AURA)]
-			pub aura: AuraId,
+			#[id(key_types::GRANDPA)]
+			pub grandpa: GrandpaId,
+			#[id(key_types::BABE)]
+			pub babe: BabeId,
 		}
 	}
 }
@@ -93,6 +102,34 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	apis: RUNTIME_API_VERSIONS,
 };

+/// Constants for Babe.
+
+/// Since BABE is probabilistic this is the average expected block time that
+/// we are targetting. Blocks will be produced at a minimum duration defined
+/// by `SLOT_DURATION`, but some slots will not be allocated to any
+/// authority and hence no block will be produced. We expect to have this
+/// block time on average following the defined slot duration and the value
+/// of `c` configured for BABE (where `1 - c` represents the probability of
+/// a slot being empty).
+/// This value is only used indirectly to define the unit constants below
+/// that are expressed in blocks. The rest of the code should use
+/// `SLOT_DURATION` instead (like the timestamp module for calculating the
+/// minimum period).
+/// <https://research.web3.foundation/en/latest/polkadot/BABE/Babe/#6-practical-results>
+pub const MILLISECS_PER_BLOCK: u64 = 6000;
+
+pub const SLOT_DURATION: u64 = MILLISECS_PER_BLOCK;
+
+pub const EPOCH_DURATION_IN_BLOCKS: u32 = 10 * MINUTES;
+
+// These time units are defined in number of blocks.
+pub const MINUTES: BlockNumber = 60_000 / (MILLISECS_PER_BLOCK as BlockNumber);
+pub const HOURS: BlockNumber = MINUTES * 60;
+pub const DAYS: BlockNumber = HOURS * 24;
+
+// 1 in 4 blocks (on average, not counting collisions) will be primary babe blocks.
+pub const PRIMARY_PROBABILITY: (u64, u64) = (1, 4);
+
 /// The version infromation used to identify this runtime when compiled natively.
 #[cfg(feature = "std")]
 pub fn native_version() -> NativeVersion {
@@ -118,7 +155,7 @@ impl system::Trait for Runtime {
 	/// The lookup mechanism to get account ID from whatever is passed in dispatchers.
 	type Lookup = Indices;
 	/// The index type for storing how many extrinsics an account has signed.
-	type Index = Nonce;
+	type Index = Index;
 	/// The index type for blocks.
 	type BlockNumber = BlockNumber;
 	/// The type for hashing blocks and tries.
@@ -144,8 +181,18 @@ impl system::Trait for Runtime {
 	type Version = Version;
 }

-impl aura::Trait for Runtime {
-	type AuthorityId = AuraId;
+parameter_types! {
+	pub const EpochDuration: u64 = EPOCH_DURATION_IN_BLOCKS as u64;
+	pub const ExpectedBlockTime: u64 = MILLISECS_PER_BLOCK;
+}
+
+impl babe::Trait for Runtime {
+	type EpochDuration = EpochDuration;
+	type ExpectedBlockTime = ExpectedBlockTime;
+}
+
+impl grandpa::Trait for Runtime {
+	type Event = Event;
 }

 impl indices::Trait for Runtime {
@@ -167,7 +214,7 @@ parameter_types! {
 impl timestamp::Trait for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
-	type OnTimestampSet = Aura;
+	type OnTimestampSet = Babe;
 	type MinimumPeriod = MinimumPeriod;
 }

@@ -201,7 +248,6 @@ impl balances::Trait for Runtime {
 }

 impl sudo::Trait for Runtime {
-	/// The ubiquitous event type.
 	type Event = Event;
 	type Proposal = Call;
 }
@@ -219,7 +265,8 @@ construct_runtime!(
 	{
 		System: system::{Module, Call, Storage, Config, Event},
 		Timestamp: timestamp::{Module, Call, Storage, Inherent},
-		Aura: aura::{Module, Config<T>, Inherent(Timestamp)},
+		Babe: babe::{Module, Call, Storage, Config, Inherent(Timestamp)},
+		Grandpa: grandpa::{Module, Call, Storage, Config, Event},
 		Indices: indices::{default, Config<T>},
 		Balances: balances,
 		Sudo: sudo,
@@ -228,28 +275,34 @@ construct_runtime!(
 	}
 );

-/// The type used as a helper for interpreting the sender of transactions.
-type Context = system::ChainContext<Runtime>;
 /// The address format for describing accounts.
-type Address = <Indices as StaticLookup>::Source;
+pub type Address = <Indices as StaticLookup>::Source;
 /// Block header type as expected by this runtime.
 pub type Header = generic::Header<BlockNumber, BlakeTwo256>;
 /// Block type as expected by this runtime.
 pub type Block = generic::Block<Header, UncheckedExtrinsic>;
+/// A Block signed with a Justification
+pub type SignedBlock = generic::SignedBlock<Block>;
 /// BlockId type as expected by this runtime.
 pub type BlockId = generic::BlockId<Block>;
 /// The SignedExtension to the basic transaction logic.
-pub type SignedExtra = (system::CheckNonce<Runtime>, system::CheckWeight<Runtime>, balances::TakeFees<Runtime>);
+pub type SignedExtra = (
+	system::CheckVersion<Runtime>,
+	system::CheckGenesis<Runtime>,
+	system::CheckEra<Runtime>,
+	system::CheckNonce<Runtime>,
+	system::CheckWeight<Runtime>,
+	balances::TakeFees<Runtime>
+);
 /// Unchecked extrinsic type as expected by this runtime.
-pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, Call, AccountSignature, SignedExtra>;
+pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, Call, Signature, SignedExtra>;
 /// Extrinsic type that has already been checked.
 pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, Call, SignedExtra>;
 /// Executive: handles dispatch to the various modules.
-pub type Executive = executive::Executive<Runtime, Block, Context, Runtime, AllModules>;
+pub type Executive = executive::Executive<Runtime, Block, system::ChainContext<Runtime>, Runtime, AllModules>;

-// Implement our runtime API endpoints. This is just a bunch of proxying.
 impl_runtime_apis! {
-	impl runtime_api::Core<Block> for Runtime {
+	impl client_api::Core<Block> for Runtime {
 		fn version() -> RuntimeVersion {
 			VERSION
 		}
@@ -263,7 +316,7 @@ impl_runtime_apis! {
 		}
 	}

-	impl runtime_api::Metadata<Block> for Runtime {
+	impl client_api::Metadata<Block> for Runtime {
 		fn metadata() -> OpaqueMetadata {
 			Runtime::metadata().into()
 		}
@@ -291,24 +344,65 @@ impl_runtime_apis! {
 		}
 	}

-	impl runtime_api::TaggedTransactionQueue<Block> for Runtime {
+	impl client_api::TaggedTransactionQueue<Block> for Runtime {
 		fn validate_transaction(tx: <Block as BlockT>::Extrinsic) -> TransactionValidity {
 			Executive::validate_transaction(tx)
 		}
 	}

-	impl consensus_aura::AuraApi<Block, AuraId> for Runtime {
-		fn slot_duration() -> u64 {
-			Aura::slot_duration()
-		}
-		fn authorities() -> Vec<AuraId> {
-			Aura::authorities()
+	impl offchain_primitives::OffchainWorkerApi<Block> for Runtime {
+		fn offchain_worker(number: NumberFor<Block>) {
+			Executive::offchain_worker(number)
 		}
 	}

-	impl offchain_primitives::OffchainWorkerApi<Block> for Runtime {
-		fn offchain_worker(n: NumberFor<Block>) {
-			Executive::offchain_worker(n)
+	impl fg_primitives::GrandpaApi<Block> for Runtime {
+		fn grandpa_pending_change(digest: &DigestFor<Block>)
+			-> Option<ScheduledChange<NumberFor<Block>>>
+		{
+			Grandpa::pending_change(digest)
+		}
+
+		fn grandpa_forced_change(digest: &DigestFor<Block>)
+			-> Option<(NumberFor<Block>, ScheduledChange<NumberFor<Block>>)>
+		{
+			Grandpa::forced_change(digest)
+		}
+
+		fn grandpa_authorities() -> Vec<(GrandpaId, GrandpaWeight)> {
+			Grandpa::grandpa_authorities()
+		}
+	}
+
+	impl babe_primitives::BabeApi<Block> for Runtime {
+		fn startup_data() -> babe_primitives::BabeConfiguration {
+			// The choice of `c` parameter (where `1 - c` represents the
+			// probability of a slot being empty), is done in accordance to the
+			// slot duration and expected target block time, for safely
+			// resisting network delays of maximum two seconds.
+			// <https://research.web3.foundation/en/latest/polkadot/BABE/Babe/#6-practical-results>
+			babe_primitives::BabeConfiguration {
+				median_required_blocks: 1000,
+				slot_duration: Babe::slot_duration(),
+				c: PRIMARY_PROBABILITY,
+			}
+		}
+
+		fn epoch() -> babe_primitives::Epoch {
+			babe_primitives::Epoch {
+				start_slot: Babe::epoch_start_slot(),
+				authorities: Babe::authorities(),
+				epoch_index: Babe::epoch_index(),
+				randomness: Babe::randomness(),
+				duration: EpochDuration::get(),
+				secondary_slots: Babe::secondary_slots().0,
+			}
+		}
+	}
+
+	impl consensus_primitives::ConsensusApi<Block, babe_primitives::AuthorityId> for Runtime {
+		fn authorities() -> Vec<babe_primitives::AuthorityId> {
+			Babe::authorities().into_iter().map(|(a, _)| a).collect()
 		}
 	}