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More docs about sealing types. Bypass work in external txs.

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This commit is contained in:
keorn 2016-09-12 12:46:03 +02:00
parent d6e5637459
commit 4bfdeea9e5
1 changed files with 11 additions and 8 deletions
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19
ethcore/src/miner/miner.rs
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@ -165,6 +165,7 @@ struct SealingWork {
}
/// Keeps track of transactions using priority queue and holds currently mined block.
/// Handles preparing work for "work sealing" or seals "internally" if Engine does not require work.
pub struct Miner {
// NOTE [ToDr] When locking always lock in this order!
transaction_queue: Arc<Mutex<TransactionQueue>>,
@ -333,7 +334,7 @@ impl Miner {
(block, original_work_hash)
}
/// Attempts to perform internal sealing to return Ok(sealed),
/// 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: block has transaction - attempting internal seal.");
@ -353,7 +354,7 @@ impl Miner {
}
}
/// Uses engine to seal the block and then imports it to chain.
/// Uses Engine to seal the block internally and then imports it to chain.
fn seal_and_import_block_internally(&self, chain: &MiningBlockChainClient, block: ClosedBlock) -> bool {
if !block.transactions().is_empty() {
if let Ok(sealed) = self.seal_block_internally(block) {
@ -400,7 +401,7 @@ impl Miner {
queue.set_gas_limit(gas_limit);
}
/// Returns true if we had to prepare new pending block
/// Returns true if we had to prepare new pending block.
fn prepare_work_sealing(&self, chain: &MiningBlockChainClient) -> bool {
trace!(target: "miner", "prepare_work_sealing: entering");
let prepare_new = {
@ -670,11 +671,11 @@ impl MinerService for Miner {
// --------------------------------------------------------------------------
if imported.is_ok() && self.options.reseal_on_own_tx && self.tx_reseal_allowed() {
// Make sure to do it after transaction is imported and lock is droped.
// We need to create pending block and enable sealing
let prepared = self.prepare_work_sealing(chain);
// If new block has not been prepared (means we already had one)
// we need to update sealing
if !prepared {
// We need to create pending block and enable sealing.
if self.engine.seals_internally() || !self.prepare_work_sealing(chain) {
// If new block has not been prepared (means we already had one)
// or Engine might be able to seal internally,
// we need to update sealing.
self.update_sealing(chain);
}
}
@ -776,6 +777,8 @@ impl MinerService for Miner {
self.transaction_queue.lock().last_nonce(address)
}
/// Update sealing if required.
/// Prepare the block and work if the Engine does not seal internally.
fn update_sealing(&self, chain: &MiningBlockChainClient) {
trace!(target: "miner", "update_sealing");
let requires_reseal = {