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vertex_vm.go
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vertex_vm.go
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// Copyright (C) 2019-2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package metervm
import (
"github.com/prometheus/client_golang/prometheus"
"github.com/ava-labs/avalanchego/api/metrics"
"github.com/ava-labs/avalanchego/database/manager"
"github.com/ava-labs/avalanchego/ids"
"github.com/ava-labs/avalanchego/snow"
"github.com/ava-labs/avalanchego/snow/consensus/snowstorm"
"github.com/ava-labs/avalanchego/snow/engine/avalanche/vertex"
"github.com/ava-labs/avalanchego/snow/engine/common"
"github.com/ava-labs/avalanchego/utils/timer/mockable"
)
var (
_ vertex.DAGVM = &vertexVM{}
_ snowstorm.Tx = &meterTx{}
)
func NewVertexVM(vm vertex.DAGVM) vertex.DAGVM {
return &vertexVM{
DAGVM: vm,
}
}
type vertexVM struct {
vertex.DAGVM
vertexMetrics
clock mockable.Clock
}
func (vm *vertexVM) Initialize(
ctx *snow.Context,
db manager.Manager,
genesisBytes,
upgradeBytes,
configBytes []byte,
toEngine chan<- common.Message,
fxs []*common.Fx,
appSender common.AppSender,
) error {
registerer := prometheus.NewRegistry()
if err := vm.vertexMetrics.Initialize("", registerer); err != nil {
return err
}
optionalGatherer := metrics.NewOptionalGatherer()
multiGatherer := metrics.NewMultiGatherer()
if err := multiGatherer.Register("metervm", registerer); err != nil {
return err
}
if err := multiGatherer.Register("", optionalGatherer); err != nil {
return err
}
if err := ctx.Metrics.Register(multiGatherer); err != nil {
return err
}
ctx.Metrics = optionalGatherer
return vm.DAGVM.Initialize(ctx, db, genesisBytes, upgradeBytes, configBytes, toEngine, fxs, appSender)
}
func (vm *vertexVM) PendingTxs() []snowstorm.Tx {
start := vm.clock.Time()
txs := vm.DAGVM.PendingTxs()
end := vm.clock.Time()
vm.vertexMetrics.pending.Observe(float64(end.Sub(start)))
return txs
}
func (vm *vertexVM) ParseTx(b []byte) (snowstorm.Tx, error) {
start := vm.clock.Time()
tx, err := vm.DAGVM.ParseTx(b)
end := vm.clock.Time()
duration := float64(end.Sub(start))
if err != nil {
vm.vertexMetrics.parseErr.Observe(duration)
return nil, err
}
vm.vertexMetrics.parse.Observe(duration)
return &meterTx{
Tx: tx,
vm: vm,
}, nil
}
func (vm *vertexVM) GetTx(txID ids.ID) (snowstorm.Tx, error) {
start := vm.clock.Time()
tx, err := vm.DAGVM.GetTx(txID)
end := vm.clock.Time()
duration := float64(end.Sub(start))
if err != nil {
vm.vertexMetrics.getErr.Observe(duration)
return nil, err
}
vm.vertexMetrics.get.Observe(duration)
return &meterTx{
Tx: tx,
vm: vm,
}, nil
}
type meterTx struct {
snowstorm.Tx
vm *vertexVM
}
func (mtx *meterTx) Verify() error {
start := mtx.vm.clock.Time()
err := mtx.Tx.Verify()
end := mtx.vm.clock.Time()
duration := float64(end.Sub(start))
if err != nil {
mtx.vm.vertexMetrics.verifyErr.Observe(duration)
} else {
mtx.vm.vertexMetrics.verify.Observe(duration)
}
return err
}
func (mtx *meterTx) Accept() error {
start := mtx.vm.clock.Time()
err := mtx.Tx.Accept()
end := mtx.vm.clock.Time()
mtx.vm.vertexMetrics.accept.Observe(float64(end.Sub(start)))
return err
}
func (mtx *meterTx) Reject() error {
start := mtx.vm.clock.Time()
err := mtx.Tx.Reject()
end := mtx.vm.clock.Time()
mtx.vm.vertexMetrics.reject.Observe(float64(end.Sub(start)))
return err
}