remoteSealer.submitWork¶
| Source (upstream pre-purge) | Current | |
|---|---|---|
| File | consensus/ethash/sealer.go |
sealer.go |
| Symbol | remoteSealer.submitWork |
remoteSealer.submitWork |
| Ref | dde2da0ef~1 |
etc/v1.17.3-full-node |
3-way merge — purge → getc ← upstream¶
pre-purge
↗// submitWork verifies the submitted pow solution, returning
// whether the solution was accepted or not (not can be both a bad pow as well as
// any other error, like no pending work or stale mining result).
func (s *remoteSealer) submitWork(nonce types.BlockNonce, mixDigest common.Hash, sealhash common.Hash) bool {
if s.currentBlock == nil {
s.ethash.config.Log.Error("Pending work without block", "sealhash", sealhash)
return false
}
// Make sure the work submitted is present
block := s.works[sealhash]
if block == nil {
s.ethash.config.Log.Warn("Work submitted but none pending", "sealhash", sealhash, "curnumber", s.currentBlock.NumberU64())
return false
}
// Verify the correctness of submitted result.
header := block.Header()
header.Nonce = nonce
header.MixDigest = mixDigest
↗ start := time.Now()
if !s.noverify {
if err := s.ethash.verifySeal(nil, header, true); err != nil {
s.ethash.config.Log.Warn("Invalid proof-of-work submitted", "sealhash", sealhash, "elapsed", common.PrettyDuration(time.Since(start)), "err", err)
return false
}
}
// Make sure the result channel is assigned.
if s.results == nil {
s.ethash.config.Log.Warn("Ethash result channel is empty, submitted mining result is rejected")
return false
}
s.ethash.config.Log.Trace("Verified correct proof-of-work", "sealhash", sealhash, "elapsed", common.PrettyDuration(time.Since(start)))
↗ // Solutions seems to be valid, return to the miner and notify acceptance.
solution := block.WithSeal(header)
↗ // The submitted solution is within the scope of acceptance.
if solution.NumberU64()+staleThreshold > s.currentBlock.NumberU64() {
select {
case s.results <- solution:
s.ethash.config.Log.Debug("Work submitted is acceptable", "number", solution.NumberU64(), "sealhash", sealhash, "hash", solution.Hash())
return true
default:
s.ethash.config.Log.Warn("Sealing result is not read by miner", "mode", "remote", "sealhash", sealhash)
return false
}
}
// The submitted block is too old to accept, drop it.
s.ethash.config.Log.Warn("Work submitted is too old", "number", solution.NumberU64(), "sealhash", sealhash, "hash", solution.Hash())
return false
}