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tmpolaczyk
318fed32f8
In Tanssi, we need a way to stop the collator code and then start it again. This is to support rotating the same collator between different runtimes. Currently, this works very well, except for the proposer metrics, because they only get registered the first time they are started. Afterwards, we see this warning log: > Failed to register proposer prometheus metrics: Duplicate metrics collector registration attempted ~~So this PR adds a method to set metrics, to allow us to register metrics manually before creating the `ProposerFactory`, and then clone the same metrics every time we need to start the collator.~~ Implemented Clone instead
Basic implementation of block-authoring logic.
Example
// The first step is to create a `ProposerFactory`.
let mut proposer_factory = ProposerFactory::new(client.clone(), txpool.clone(), None);
// From this factory, we create a `Proposer`.
let proposer = proposer_factory.init(
&client.header(client.chain_info().genesis_hash).unwrap().unwrap(),
);
// The proposer is created asynchronously.
let proposer = futures::executor::block_on(proposer).unwrap();
// This `Proposer` allows us to create a block proposition.
// The proposer will grab transactions from the transaction pool, and put them into the block.
let future = proposer.propose(
Default::default(),
Default::default(),
Duration::from_secs(2),
);
// We wait until the proposition is performed.
let block = futures::executor::block_on(future).unwrap();
println!("Generated block: {:?}", block.block);
License: GPL-3.0-or-later WITH Classpath-exception-2.0