frostfs-node/pkg/innerring/processors/governance/processor.go
Alex Vanin d0d1731af7 [] innerring: Define governance processor
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2021-03-26 12:38:42 +03:00

109 lines
2.9 KiB
Go

package governance
import (
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
"github.com/panjf2000/ants/v2"
"github.com/pkg/errors"
"go.uber.org/zap"
)
// GovernanceProcessor manages governance sync tasks. This process must not be
// interrupted by other sync operation, so we limit pool size for processor to
// one.
const ProcessorPoolSize = 1
type (
// AlphabetState is a callback interface for inner ring global state.
AlphabetState interface {
IsAlphabet() bool
}
// Voter is a callback interface for alphabet contract voting.
Voter interface {
VoteForSidechainValidator(keys keys.PublicKeys) error
}
// EpochState is a callback interface for inner ring global state.
EpochState interface {
EpochCounter() uint64
}
// Processor of events related to governance in the network.
Processor struct {
log *zap.Logger
pool *ants.Pool
neofsContract util.Uint160
alphabetState AlphabetState
epochState EpochState
voter Voter
mainnetClient *client.Client
morphClient *client.Client
}
// Params of the processor constructor.
Params struct {
Log *zap.Logger
NeoFSContract util.Uint160
AlphabetState AlphabetState
EpochState EpochState
Voter Voter
MorphClient *client.Client
MainnetClient *client.Client
}
)
// New creates balance contract processor instance.
func New(p *Params) (*Processor, error) {
switch {
case p.Log == nil:
return nil, errors.New("ir/governance: logger is not set")
case p.MainnetClient == nil:
return nil, errors.New("ir/governance: neo:mainnet client is not set")
case p.MorphClient == nil:
return nil, errors.New("ir/governance: neo:sidechain client is not set")
case p.AlphabetState == nil:
return nil, errors.New("ir/governance: global state is not set")
case p.EpochState == nil:
return nil, errors.New("ir/governance: global state is not set")
case p.Voter == nil:
return nil, errors.New("ir/governance: global state is not set")
}
pool, err := ants.NewPool(ProcessorPoolSize, ants.WithNonblocking(true))
if err != nil {
return nil, errors.Wrap(err, "ir/governance: can't create worker pool")
}
return &Processor{
log: p.Log,
pool: pool,
neofsContract: p.NeoFSContract,
alphabetState: p.AlphabetState,
epochState: p.EpochState,
voter: p.Voter,
mainnetClient: p.MainnetClient,
morphClient: p.MorphClient,
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (gp *Processor) ListenerParsers() []event.ParserInfo {
return nil
}
// ListenerHandlers for the 'event.Listener' event producer.
func (gp *Processor) ListenerHandlers() []event.HandlerInfo {
return nil
}
// TimersHandlers for the 'Timers' event producer.
func (gp *Processor) TimersHandlers() []event.HandlerInfo {
return nil
}