mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-27 05:57:28 +00:00
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
package builder
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import (
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"sync"
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"sync/atomic"
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"time"
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"github.com/ledgerwatch/erigon/core"
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"github.com/ledgerwatch/erigon/core/types"
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"github.com/ledgerwatch/log/v3"
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)
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type BlockBuilderFunc func(param *core.BlockBuilderParameters, interrupt *int32) (*types.Block, error)
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// BlockBuilder wraps a goroutine that builds Proof-of-Stake payloads (PoS "mining")
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type BlockBuilder struct {
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emptyHeader *types.Header
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interrupt int32
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syncCond *sync.Cond
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block *types.Block
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err error
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}
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func NewBlockBuilder(build BlockBuilderFunc, param *core.BlockBuilderParameters, emptyHeader *types.Header) *BlockBuilder {
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b := new(BlockBuilder)
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b.emptyHeader = emptyHeader
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b.syncCond = sync.NewCond(new(sync.Mutex))
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go func() {
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log.Debug("Building block...")
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t := time.Now()
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block, err := build(param, &b.interrupt)
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log.Debug("Built block", "hash", block.Hash(), "height", block.NumberU64(), "txs", len(block.Transactions()), "gas used %", 100*float64(block.GasUsed())/float64(block.GasLimit()), "time", time.Since(t))
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b.syncCond.L.Lock()
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defer b.syncCond.L.Unlock()
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b.block = block
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b.err = err
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b.syncCond.Broadcast()
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}()
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return b
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}
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func (b *BlockBuilder) Stop() *types.Block {
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atomic.StoreInt32(&b.interrupt, 1)
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b.syncCond.L.Lock()
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defer b.syncCond.L.Unlock()
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for b.block == nil && b.err == nil {
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b.syncCond.Wait()
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}
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if b.err != nil {
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log.Error("BlockBuilder", "err", b.err)
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return types.NewBlock(b.emptyHeader, nil, nil, nil)
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}
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return b.block
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}
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func (b *BlockBuilder) Block() *types.Block {
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b.syncCond.L.Lock()
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defer b.syncCond.L.Unlock()
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return b.block
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}
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