feat: initialize Kurdistan SDK - independent fork of Polkadot SDK

pezkuwi/node/subsystem-bench/src/lib/mock/candidate_validation.rs

@@ -0,0 +1,81 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// This file is part of Pezkuwi.
+
+// Pezkuwi 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.
+
+// Pezkuwi 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 Pezkuwi.  If not, see <http://www.gnu.org/licenses/>.
+
+//! A generic mock candidate validation subsystem suitable for using in benchmarks, it
+//! is responding with candidate valid for every request.
+
+use futures::FutureExt;
+use pezkuwi_node_primitives::ValidationResult;
+use pezkuwi_node_subsystem::{
+	messages::CandidateValidationMessage, overseer, SpawnedSubsystem, SubsystemError,
+};
+use pezkuwi_node_subsystem_types::OverseerSignal;
+use pezkuwi_primitives::{CandidateCommitments, Hash, HeadData, PersistedValidationData};
+
+const LOG_TARGET: &str = "subsystem-bench::candidate-validation-mock";
+
+pub struct MockCandidateValidation {}
+
+impl MockCandidateValidation {
+	pub fn new() -> Self {
+		Self {}
+	}
+}
+
+#[overseer::subsystem(CandidateValidation, error=SubsystemError, prefix=self::overseer)]
+impl<Context> MockCandidateValidation {
+	fn start(self, ctx: Context) -> SpawnedSubsystem {
+		let future = self.run(ctx).map(|_| Ok(())).boxed();
+
+		SpawnedSubsystem { name: "test-environment", future }
+	}
+}
+
+#[overseer::contextbounds(CandidateValidation, prefix = self::overseer)]
+impl MockCandidateValidation {
+	async fn run<Context>(self, mut ctx: Context) {
+		loop {
+			let msg = ctx.recv().await.expect("Overseer never fails us");
+			match msg {
+				orchestra::FromOrchestra::Signal(signal) =>
+					if signal == OverseerSignal::Conclude {
+						return;
+					},
+				orchestra::FromOrchestra::Communication { msg } => match msg {
+					CandidateValidationMessage::ValidateFromExhaustive {
+						response_sender,
+						validation_data,
+						..
+					} => {
+						gum::debug!(target: LOG_TARGET, "ValidateFromExhaustive, PVD hash {:?}", validation_data.hash());
+						response_sender
+							.send(Ok(ValidationResult::Valid(
+								CandidateCommitments::default(),
+								PersistedValidationData {
+									parent_head: HeadData(Vec::new()),
+									relay_parent_number: 0,
+									relay_parent_storage_root: Hash::default(),
+									max_pov_size: 2,
+								},
+							)))
+							.unwrap()
+					},
+					_ => unimplemented!("Unexpected chain-api message"),
+				},
+			}
+		}
+	}
+}