gecko/snow/engine/avalanche/vertex_job.go

67 lines
1.5 KiB
Go

// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package avalanche
import (
"github.com/prometheus/client_golang/prometheus"
"github.com/ava-labs/gecko/ids"
"github.com/ava-labs/gecko/snow/choices"
"github.com/ava-labs/gecko/snow/consensus/avalanche"
"github.com/ava-labs/gecko/snow/engine/common/queue"
)
type vtxParser struct {
numAccepted, numDropped prometheus.Counter
state State
}
func (p *vtxParser) Parse(vtxBytes []byte) (queue.Job, error) {
vtx, err := p.state.ParseVertex(vtxBytes)
if err != nil {
return nil, err
}
return &vertexJob{
numAccepted: p.numAccepted,
numDropped: p.numDropped,
vtx: vtx,
}, nil
}
type vertexJob struct {
numAccepted, numDropped prometheus.Counter
vtx avalanche.Vertex
}
func (v *vertexJob) ID() ids.ID { return v.vtx.ID() }
func (v *vertexJob) MissingDependencies() ids.Set {
missing := ids.Set{}
for _, parent := range v.vtx.Parents() {
if parent.Status() != choices.Accepted {
missing.Add(parent.ID())
}
}
return missing
}
func (v *vertexJob) Execute() {
if v.MissingDependencies().Len() != 0 {
v.numDropped.Inc()
return
}
for _, tx := range v.vtx.Txs() {
if tx.Status() != choices.Accepted {
v.numDropped.Inc()
return
}
}
switch v.vtx.Status() {
case choices.Unknown, choices.Rejected:
v.numDropped.Inc()
case choices.Processing:
v.vtx.Accept()
v.numAccepted.Inc()
}
}
func (v *vertexJob) Bytes() []byte { return v.vtx.Bytes() }