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122
substrate/utils/frame/benchmarking-cli/src/overhead/remark_builder.rs
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| // This file is part of Substrate. | ||
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| // Copyright (C) Parity Technologies (UK) Ltd. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
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| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| use crate::extrinsic::ExtrinsicBuilder; | ||
| use codec::Decode; | ||
| use sc_client_api::UsageProvider; | ||
| use sp_api::{ApiExt, Core, Metadata, ProvideRuntimeApi}; | ||
| use sp_runtime::{traits::Block as BlockT, OpaqueExtrinsic}; | ||
| use std::sync::Arc; | ||
| use subxt::{ | ||
| client::RuntimeVersion as SubxtRuntimeVersion, | ||
| config::substrate::SubstrateExtrinsicParamsBuilder, Config, OfflineClient, SubstrateConfig, | ||
| }; | ||
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| pub type SubstrateRemarkBuilder = DynamicRemarkBuilder<SubstrateConfig>; | ||
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| /// Remark builder that can be used to build simple extrinsics for | ||
| /// FRAME-based runtimes. | ||
| pub struct DynamicRemarkBuilder<C: Config> { | ||
| offline_client: OfflineClient<C>, | ||
| } | ||
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| impl<C: Config<Hash = subxt::utils::H256>> DynamicRemarkBuilder<C> { | ||
| /// Initializes a new remark builder from a client. | ||
| /// | ||
| /// This will first fetch metadata and runtime version from the runtime and then | ||
| /// construct an offline client that provides the extrinsics. | ||
| pub fn new_from_client<Client, Block>(client: Arc<Client>) -> sc_cli::Result<Self> | ||
| where | ||
| Block: BlockT<Hash = sp_core::H256>, | ||
| Client: UsageProvider<Block> + ProvideRuntimeApi<Block>, | ||
| Client::Api: Metadata<Block> + Core<Block>, | ||
| { | ||
| let genesis = client.usage_info().chain.best_hash; | ||
| let api = client.runtime_api(); | ||
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| let Ok(Some(metadata_api_version)) = api.api_version::<dyn Metadata<Block>>(genesis) else { | ||
| return Err("Unable to fetch metadata runtime API version.".to_string().into()); | ||
| }; | ||
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| log::debug!("Found metadata API version {}.", metadata_api_version); | ||
| let opaque_metadata = if metadata_api_version > 1 { | ||
| let Ok(mut supported_metadata_versions) = api.metadata_versions(genesis) else { | ||
| return Err("Unable to fetch metadata versions".to_string().into()); | ||
| }; | ||
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| let latest = supported_metadata_versions | ||
| .pop() | ||
| .ok_or("No metadata version supported".to_string())?; | ||
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| api.metadata_at_version(genesis, latest) | ||
| .map_err(|e| format!("Unable to fetch metadata: {:?}", e))? | ||
| .ok_or("Unable to decode metadata".to_string())? | ||
| } else { | ||
| // Fall back to using the non-versioned metadata API. | ||
| api.metadata(genesis) | ||
| .map_err(|e| format!("Unable to fetch metadata: {:?}", e))? | ||
| }; | ||
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| let version = api.version(genesis).unwrap(); | ||
| let runtime_version = SubxtRuntimeVersion { | ||
| spec_version: version.spec_version, | ||
| transaction_version: version.transaction_version, | ||
| }; | ||
| let metadata = subxt::Metadata::decode(&mut (*opaque_metadata).as_slice())?; | ||
| let genesis = subxt::utils::H256::from(genesis.to_fixed_bytes()); | ||
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| Ok(Self { offline_client: OfflineClient::new(genesis, runtime_version, metadata) }) | ||
| } | ||
| } | ||
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| impl<C: Config> DynamicRemarkBuilder<C> { | ||
| /// Constructs a new remark builder. | ||
| pub fn new( | ||
| metadata: subxt::Metadata, | ||
| genesis_hash: C::Hash, | ||
| runtime_version: SubxtRuntimeVersion, | ||
| ) -> Self { | ||
| Self { offline_client: OfflineClient::new(genesis_hash, runtime_version, metadata) } | ||
| } | ||
| } | ||
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| impl ExtrinsicBuilder for DynamicRemarkBuilder<SubstrateConfig> { | ||
| fn pallet(&self) -> &str { | ||
| "system" | ||
| } | ||
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| fn extrinsic(&self) -> &str { | ||
| "remark" | ||
| } | ||
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| fn build(&self, nonce: u32) -> std::result::Result<OpaqueExtrinsic, &'static str> { | ||
| let signer = subxt_signer::sr25519::dev::alice(); | ||
| let dynamic_tx = subxt::dynamic::tx("System", "remark", vec![Vec::<u8>::new()]); | ||
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| let params = SubstrateExtrinsicParamsBuilder::new().nonce(nonce.into()).build(); | ||
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| // Default transaction parameters assume a nonce of 0. | ||
| let transaction = self | ||
| .offline_client | ||
| .tx() | ||
| .create_signed_offline(&dynamic_tx, &signer, params) | ||
| .unwrap(); | ||
| let mut encoded = transaction.into_encoded(); | ||
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| OpaqueExtrinsic::from_bytes(&mut encoded).map_err(|_| "Unable to construct OpaqueExtrinsic") | ||
| } | ||
| } |
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