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better proposal block handling

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This commit is contained in:
keorn
2016-12-08 12:03:34 +01:00
parent 347634ac6c
commit 3ebfa1481d
14 changed files with 228 additions and 131 deletions
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68
ethcore/src/miner/miner.rs
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@@ -26,12 +26,12 @@ use state::{State, CleanupMode};
use client::{MiningBlockChainClient, Executive, Executed, EnvInfo, TransactOptions, BlockID, CallAnalytics};
use client::TransactionImportResult;
use executive::contract_address;
use block::{ClosedBlock, SealedBlock, IsBlock, Block};
use block::{ClosedBlock, IsBlock, Block};
use error::*;
use transaction::{Action, SignedTransaction};
use receipt::{Receipt, RichReceipt};
use spec::Spec;
use engines::Engine;
use engines::{Engine, Seal};
use miner::{MinerService, MinerStatus, TransactionQueue, PrioritizationStrategy, AccountDetails, TransactionOrigin};
use miner::banning_queue::{BanningTransactionQueue, Threshold};
use miner::work_notify::WorkPoster;
@@ -461,39 +461,41 @@ impl Miner {
}
}
/// Attempts to perform internal sealing (one that does not require work) to return Ok(sealed),
/// Err(Some(block)) returns for unsuccesful sealing while Err(None) indicates misspecified engine.
fn seal_block_internally(&self, block: ClosedBlock) -> Result<SealedBlock, Option<ClosedBlock>> {
trace!(target: "miner", "seal_block_internally: attempting internal seal.");
let s = self.engine.generate_seal(block.block());
if let Some(seal) = s {
trace!(target: "miner", "seal_block_internally: managed internal seal. importing...");
block.lock().try_seal(&*self.engine, seal).or_else(|(e, _)| {
warn!("prepare_sealing: ERROR: try_seal failed when given internally generated seal: {}", e);
Err(None)
})
} else {
trace!(target: "miner", "seal_block_internally: unable to generate seal internally");
Err(Some(block))
}
}
/// Uses Engine to seal the block internally and then imports it to chain.
/// Attempts to perform internal sealing (one that does not require work) and handles the result depending on the type of Seal.
fn seal_and_import_block_internally(&self, chain: &MiningBlockChainClient, block: ClosedBlock) -> bool {
{
let mut sealing_work = self.sealing_work.lock();
sealing_work.queue.push(block.clone());
sealing_work.queue.use_last_ref();
}
if !block.transactions().is_empty() || self.forced_sealing() {
if let Ok(sealed) = self.seal_block_internally(block) {
if chain.import_sealed_block(sealed).is_ok() {
trace!(target: "miner", "import_block_internally: imported internally sealed block");
return true
}
trace!(target: "miner", "seal_block_internally: attempting internal seal.");
match self.engine.generate_seal(block.block()) {
// Save proposal for later seal submission and broadcast it.
Seal::Proposal(seal) => {
trace!(target: "miner", "Received a Proposal seal.");
let mut sealing_work = self.sealing_work.lock();
sealing_work.queue.push(block.clone());
sealing_work.queue.use_last_ref();
block
.lock()
.seal(&*self.engine, seal)
.map(|sealed| { chain.broadcast_proposal_block(sealed); true })
.unwrap_or_else(|e| {
warn!("ERROR: seal failed when given internally generated seal: {}", e);
false
})
},
// Directly import a regular seal.
Seal::Regular(seal) =>
block
.lock()
.seal(&*self.engine, seal)
.map(|sealed| chain.import_sealed_block(sealed).is_ok())
.unwrap_or_else(|e| {
warn!("ERROR: seal failed when given internally generated seal: {}", e);
false
}),
Seal::None => false,
}
} else {
false
}
false
}
/// Prepares work which has to be done to seal.
@@ -1034,7 +1036,9 @@ impl MinerService for Miner {
let (block, original_work_hash) = self.prepare_block(chain);
if self.seals_internally {
trace!(target: "miner", "update_sealing: engine indicates internal sealing");
self.seal_and_import_block_internally(chain, block);
if self.seal_and_import_block_internally(chain, block) {
trace!(target: "miner", "update_sealing: imported internally sealed block");
}
} else {
trace!(target: "miner", "update_sealing: engine does not seal internally, preparing work");
self.prepare_work(block, original_work_hash);