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core: resolve chain head number only

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This commit is contained in:
Gary Rong 2025-04-17 13:00:00 +08:00
parent aaaea82e65
commit a874ea621f
1 changed files with 18 additions and 9 deletions
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27
core/txindexer.go
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@ -196,6 +196,19 @@ func (indexer *txIndexer) repair(head uint64) {
}
}
// resolveHead resolves the block number of the current chain head.
func (indexer *txIndexer) resolveHead() uint64 {
headBlockHash := rawdb.ReadHeadBlockHash(indexer.db)
if headBlockHash == (common.Hash{}) {
return 0
}
headBlockNumber := rawdb.ReadHeaderNumber(indexer.db, headBlockHash)
if headBlockNumber == nil {
return 0
}
return *headBlockNumber
}
// loop is the scheduler of the indexer, assigning indexing/unindexing tasks depending
// on the received chain event.
func (indexer *txIndexer) loop(chain *BlockChain) {
@ -203,10 +216,9 @@ func (indexer *txIndexer) loop(chain *BlockChain) {
// Listening to chain events and manipulate the transaction indexes.
var (
stop chan struct{} // Non-nil if background routine is active
done chan struct{} // Non-nil if background routine is active
headBlock = rawdb.ReadHeadBlock(indexer.db) // The latest announced chain head
head uint64
stop chan struct{} // Non-nil if background routine is active
done chan struct{} // Non-nil if background routine is active
head = indexer.resolveHead() // The latest announced chain head
headCh = make(chan ChainHeadEvent)
sub = chain.SubscribeChainHeadEvent(headCh)
@ -214,16 +226,13 @@ func (indexer *txIndexer) loop(chain *BlockChain) {
defer sub.Unsubscribe()
// Validate the transaction indexes and repair if necessary
if headBlock != nil {
indexer.repair(headBlock.NumberU64())
}
indexer.repair(head)
// Launch the initial processing if chain is not empty (head != genesis).
// This step is useful in these scenarios that chain has no progress.
if headBlock != nil && headBlock.NumberU64() != 0 {
if head != 0 {
stop = make(chan struct{})
done = make(chan struct{})
head = headBlock.Number().Uint64()
go indexer.run(head, stop, done)
}
for {