frostfs-node/pkg/innerring/processors/netmap/processor.go

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package netmap
import (
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
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"github.com/nspcc-dev/neofs-node/pkg/morph/client"
container "github.com/nspcc-dev/neofs-node/pkg/morph/client/container/wrapper"
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"github.com/nspcc-dev/neofs-node/pkg/morph/event"
netmapEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/netmap"
"github.com/panjf2000/ants/v2"
"github.com/pkg/errors"
"go.uber.org/zap"
)
type (
// EpochTimerReseter is a callback interface for tickers component.
EpochTimerReseter interface {
ResetEpochTimer() error
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}
// EpochState is a callback interface for inner ring global state.
EpochState interface {
SetEpochCounter(uint64)
EpochCounter() uint64
}
// AlphabetState is a callback interface for inner ring global state.
AlphabetState interface {
IsAlphabet() bool
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}
// NodeValidator wraps basic method of checking the correctness
// of information about the node and its finalization for adding
// to the network map.
NodeValidator interface {
// Must verify and update NodeInfo structure.
//
// Must return an error if NodeInfo input is invalid.
// Must return an error if it is not possible to correctly
// change the structure for sending to the network map.
//
// If no error occurs, the parameter must point to the
// ready-made NodeInfo structure.
VerifyAndUpdate(*netmap.NodeInfo) error
}
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// Processor of events produced by network map contract
// and new epoch ticker, because it is related to contract.
Processor struct {
log *zap.Logger
pool *ants.Pool
netmapContract util.Uint160
epochTimer EpochTimerReseter
epochState EpochState
alphabetState AlphabetState
morphClient *client.Client
containerWrp *container.Wrapper
netmapSnapshot cleanupTable
handleNewAudit event.Handler
handleAuditSettlements event.Handler
nodeValidator NodeValidator
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}
// Params of the processor constructor.
Params struct {
Log *zap.Logger
PoolSize int
NetmapContract util.Uint160
EpochTimer EpochTimerReseter
MorphClient *client.Client
EpochState EpochState
AlphabetState AlphabetState
CleanupEnabled bool
CleanupThreshold uint64 // in epochs
ContainerWrapper *container.Wrapper
HandleAudit event.Handler
AuditSettlementsHandler event.Handler
NodeValidator NodeValidator
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}
)
const (
newEpochNotification = "NewEpoch"
addPeerNotification = "AddPeer"
updatePeerStateNotification = "UpdateState"
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)
// New creates network map contract processor instance.
func New(p *Params) (*Processor, error) {
switch {
case p.Log == nil:
return nil, errors.New("ir/netmap: logger is not set")
case p.MorphClient == nil:
return nil, errors.New("ir/netmap: morph client is not set")
case p.EpochTimer == nil:
return nil, errors.New("ir/netmap: epoch itmer is not set")
case p.EpochState == nil:
return nil, errors.New("ir/netmap: global state is not set")
case p.AlphabetState == nil:
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return nil, errors.New("ir/netmap: global state is not set")
case p.HandleAudit == nil:
return nil, errors.New("ir/netmap: audit handler is not set")
case p.AuditSettlementsHandler == nil:
return nil, errors.New("ir/netmap: audit settlement handler is not set")
case p.ContainerWrapper == nil:
return nil, errors.New("ir/netmap: container contract wrapper is not set")
case p.NodeValidator == nil:
return nil, errors.New("ir/netmap: node validator is not set")
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}
p.Log.Debug("netmap worker pool", zap.Int("size", p.PoolSize))
pool, err := ants.NewPool(p.PoolSize, ants.WithNonblocking(true))
if err != nil {
return nil, errors.Wrap(err, "ir/netmap: can't create worker pool")
}
return &Processor{
log: p.Log,
pool: pool,
netmapContract: p.NetmapContract,
epochTimer: p.EpochTimer,
epochState: p.EpochState,
alphabetState: p.AlphabetState,
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morphClient: p.MorphClient,
containerWrp: p.ContainerWrapper,
netmapSnapshot: newCleanupTable(p.CleanupEnabled, p.CleanupThreshold),
handleNewAudit: p.HandleAudit,
handleAuditSettlements: p.AuditSettlementsHandler,
nodeValidator: p.NodeValidator,
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}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (np *Processor) ListenerParsers() []event.ParserInfo {
var parsers []event.ParserInfo
// new epoch event
newEpoch := event.ParserInfo{}
newEpoch.SetType(newEpochNotification)
newEpoch.SetScriptHash(np.netmapContract)
newEpoch.SetParser(netmapEvent.ParseNewEpoch)
parsers = append(parsers, newEpoch)
// new peer event
addPeer := event.ParserInfo{}
addPeer.SetType(addPeerNotification)
addPeer.SetScriptHash(np.netmapContract)
addPeer.SetParser(netmapEvent.ParseAddPeer)
parsers = append(parsers, addPeer)
// update peer event
updatePeer := event.ParserInfo{}
updatePeer.SetType(updatePeerStateNotification)
updatePeer.SetScriptHash(np.netmapContract)
updatePeer.SetParser(netmapEvent.ParseUpdatePeer)
parsers = append(parsers, updatePeer)
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return parsers
}
// ListenerHandlers for the 'event.Listener' event producer.
func (np *Processor) ListenerHandlers() []event.HandlerInfo {
var handlers []event.HandlerInfo
// new epoch handler
newEpoch := event.HandlerInfo{}
newEpoch.SetType(newEpochNotification)
newEpoch.SetScriptHash(np.netmapContract)
newEpoch.SetHandler(np.handleNewEpoch)
handlers = append(handlers, newEpoch)
// new peer handler
addPeer := event.HandlerInfo{}
addPeer.SetType(addPeerNotification)
addPeer.SetScriptHash(np.netmapContract)
addPeer.SetHandler(np.handleAddPeer)
handlers = append(handlers, addPeer)
// update peer handler
updatePeer := event.HandlerInfo{}
updatePeer.SetType(updatePeerStateNotification)
updatePeer.SetScriptHash(np.netmapContract)
updatePeer.SetHandler(np.handleUpdateState)
handlers = append(handlers, updatePeer)
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return handlers
}
// TimersHandlers for the 'Timers' event producer.
func (np *Processor) TimersHandlers() []event.HandlerInfo {
return nil
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}