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[#141] Fix double sidechain GAS emission on asset mint 

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
support/v0.27
Alex Vanin 2020-11-03 14:16:32 +03:00 committed by Alex Vanin
parent 0c49c08609
commit 97077294fc
5 changed files with 89 additions and 41 deletions
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3
cmd/neofs-ir/defaults.go
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@ -85,4 +85,7 @@ func defaultConfiguration(cfg *viper.Viper) {
cfg.SetDefault("netmap_cleaner.threshold", 3)
cfg.SetDefault("emit.storage.amount", 0)
cfg.SetDefault("emit.mint.cache_size", 1000)
cfg.SetDefault("emit.mint.threshold", 1)
cfg.SetDefault("emit.mint.value", 20000000) // 0.2 Fixed8
}

1
go.mod
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@ -7,6 +7,7 @@ require (
github.com/alecthomas/participle v0.6.0
github.com/golang/protobuf v1.4.3
github.com/google/uuid v1.1.1
github.com/hashicorp/golang-lru v0.5.4
github.com/mitchellh/go-homedir v1.1.0
github.com/mr-tron/base58 v1.1.3
github.com/multiformats/go-multiaddr v0.2.0

21
pkg/innerring/innerring.go
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@ -231,15 +231,18 @@ func New(ctx context.Context, log *zap.Logger, cfg *viper.Viper) (*Server, error
// create mainnnet neofs processor
neofsProcessor, err := neofs.New(&neofs.Params{
Log: log,
PoolSize: cfg.GetInt("workers.neofs"),
NeoFSContract: server.contracts.neofs,
BalanceContract: server.contracts.balance,
NetmapContract: server.contracts.netmap,
MorphClient: server.morphClient,
EpochState: server,
ActiveState: server,
Converter: &server.precision,
Log: log,
PoolSize: cfg.GetInt("workers.neofs"),
NeoFSContract: server.contracts.neofs,
BalanceContract: server.contracts.balance,
NetmapContract: server.contracts.netmap,
MorphClient: server.morphClient,
EpochState: server,
ActiveState: server,
Converter: &server.precision,
MintEmitCacheSize: cfg.GetInt("emit.mint.cache_size"),
MintEmitThreshold: cfg.GetUint64("emit.mint.threshold"),
MintEmitValue: util.Fixed8(cfg.GetInt64("emit.mint.value")),
})
if err != nil {
return nil, err

32
pkg/innerring/processors/neofs/process_assets.go
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@ -34,12 +34,34 @@ func (np *Processor) processDeposit(deposit *neofsEvent.Deposit) {
np.log.Error("can't transfer assets to balance contract", zap.Error(err))
}
// fixme: send gas when ^ tx accepted
// fixme: do not send gas to the same user twice per epoch
err = np.morphClient.TransferGas(deposit.To(), util.Fixed8FromInt64(2))
if err != nil {
np.log.Error("can't transfer native gas to receiver", zap.Error(err))
curEpoch := np.epochState.EpochCounter()
receiver := deposit.To()
// check if receiver already received some mint GAS emissions
// we should lock there even though LRU cache is already thread save
// we lock there because GAS transfer AND cache update must be atomic
np.mintEmitLock.Lock()
defer np.mintEmitLock.Unlock()
val, ok := np.mintEmitCache.Get(receiver.String())
if ok && val.(uint64)+np.mintEmitThreshold >= curEpoch {
np.log.Warn("double mint emission declined",
zap.String("receiver", receiver.String()),
zap.Uint64("last_emission", val.(uint64)),
zap.Uint64("current_epoch", curEpoch))
return
}
err = np.morphClient.TransferGas(receiver, np.mintEmitValue)
if err != nil {
np.log.Error("can't transfer native gas to receiver",
zap.String("error", err.Error()))
return
}
np.mintEmitCache.Add(receiver.String(), curEpoch)
}
// Process withdraw event by locking assets in balance account.

73
pkg/innerring/processors/neofs/processor.go
View File

@ -1,6 +1,9 @@
package neofs
import (
"sync"
lru "github.com/hashicorp/golang-lru"
"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"
@ -28,28 +31,35 @@ type (
// Processor of events produced by neofs contract in main net.
Processor struct {
log *zap.Logger
pool *ants.Pool
neofsContract util.Uint160
balanceContract util.Uint160
netmapContract util.Uint160
morphClient *client.Client
epochState EpochState
activeState ActiveState
converter PrecisionConverter
log *zap.Logger
pool *ants.Pool
neofsContract util.Uint160
balanceContract util.Uint160
netmapContract util.Uint160
morphClient *client.Client
epochState EpochState
activeState ActiveState
converter PrecisionConverter
mintEmitLock *sync.Mutex
mintEmitCache *lru.Cache
mintEmitThreshold uint64
mintEmitValue util.Fixed8
}
// Params of the processor constructor.
Params struct {
Log *zap.Logger
PoolSize int
NeoFSContract util.Uint160
BalanceContract util.Uint160
NetmapContract util.Uint160
MorphClient *client.Client
EpochState EpochState
ActiveState ActiveState
Converter PrecisionConverter
Log *zap.Logger
PoolSize int
NeoFSContract util.Uint160
BalanceContract util.Uint160
NetmapContract util.Uint160
MorphClient *client.Client
EpochState EpochState
ActiveState ActiveState
Converter PrecisionConverter
MintEmitCacheSize int
MintEmitThreshold uint64 // in epochs
MintEmitValue util.Fixed8
}
)
@ -83,16 +93,25 @@ func New(p *Params) (*Processor, error) {
return nil, errors.Wrap(err, "ir/neofs: can't create worker pool")
}
lruCache, err := lru.New(p.MintEmitCacheSize)
if err != nil {
return nil, errors.Wrap(err, "ir/neofs: can't create LRU cache for gas emission")
}
return &Processor{
log: p.Log,
pool: pool,
neofsContract: p.NeoFSContract,
balanceContract: p.BalanceContract,
netmapContract: p.NetmapContract,
morphClient: p.MorphClient,
epochState: p.EpochState,
activeState: p.ActiveState,
converter: p.Converter,
log: p.Log,
pool: pool,
neofsContract: p.NeoFSContract,
balanceContract: p.BalanceContract,
netmapContract: p.NetmapContract,
morphClient: p.MorphClient,
epochState: p.EpochState,
activeState: p.ActiveState,
converter: p.Converter,
mintEmitLock: new(sync.Mutex),
mintEmitCache: lruCache,
mintEmitThreshold: p.MintEmitThreshold,
mintEmitValue: p.MintEmitValue,
}, nil
}