mirror of https://github.com/poanetwork/gecko.git
60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package snowman
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import (
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"github.com/prometheus/client_golang/prometheus"
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"github.com/ava-labs/gecko/ids"
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"github.com/ava-labs/gecko/snow/choices"
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"github.com/ava-labs/gecko/snow/consensus/snowman"
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"github.com/ava-labs/gecko/snow/engine/common/queue"
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)
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type parser struct {
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numAccepted, numDropped prometheus.Counter
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vm ChainVM
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}
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func (p *parser) Parse(blkBytes []byte) (queue.Job, error) {
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blk, err := p.vm.ParseBlock(blkBytes)
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if err != nil {
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return nil, err
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}
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return &blockJob{
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numAccepted: p.numAccepted,
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numDropped: p.numDropped,
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blk: blk,
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}, nil
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}
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type blockJob struct {
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numAccepted, numDropped prometheus.Counter
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blk snowman.Block
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}
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func (b *blockJob) ID() ids.ID { return b.blk.ID() }
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func (b *blockJob) MissingDependencies() ids.Set {
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missing := ids.Set{}
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if parent := b.blk.Parent(); parent.Status() != choices.Accepted {
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missing.Add(parent.ID())
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}
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return missing
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}
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func (b *blockJob) Execute() {
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if b.MissingDependencies().Len() != 0 {
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b.numDropped.Inc()
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return
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}
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switch b.blk.Status() {
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case choices.Unknown, choices.Rejected:
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b.numDropped.Inc()
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case choices.Processing:
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b.blk.Verify()
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b.blk.Accept()
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b.numAccepted.Inc()
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}
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}
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func (b *blockJob) Bytes() []byte { return b.blk.Bytes() }
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