frostfs-node/pkg/innerring/processors/frostfs/process_assets.go

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package frostfs
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import (
"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client/balance"
frostfsEvent "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event/frostfs"
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"github.com/nspcc-dev/neo-go/pkg/util"
"go.uber.org/zap"
)
const (
// lockAccountLifeTime defines the amount of epochs when lock account is valid.
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lockAccountLifetime uint64 = 20
)
// Process deposit event by invoking a balance contract and sending native
// gas in the sidechain.
func (np *Processor) processDeposit(deposit *frostfsEvent.Deposit) {
if !np.alphabetState.IsAlphabet() {
np.log.Info(logs.FrostFSNonAlphabetModeIgnoreDeposit)
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return
}
prm := balance.MintPrm{}
prm.SetTo(deposit.To())
prm.SetAmount(np.converter.ToBalancePrecision(deposit.Amount()))
prm.SetID(deposit.ID())
// send transferX to a balance contract
err := np.balanceClient.Mint(prm)
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if err != nil {
np.log.Error(logs.FrostFSCantTransferAssetsToBalanceContract, zap.Error(err))
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}
curEpoch := np.epochState.EpochCounter()
receiver := deposit.To()
// check if the receiver has 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+np.mintEmitThreshold >= curEpoch {
np.log.Warn(logs.FrostFSDoubleMintEmissionDeclined,
zap.String("receiver", receiver.String()),
zap.Uint64("last_emission", val),
zap.Uint64("current_epoch", curEpoch))
return
}
// get gas balance of the node
// before gas transfer check if the balance is greater than the threshold
balance, err := np.morphClient.GasBalance()
if err != nil {
np.log.Error(logs.FrostFSCantGetGasBalanceOfTheNode, zap.Error(err))
return
}
if balance < np.gasBalanceThreshold {
np.log.Warn(logs.FrostFSGasBalanceThresholdHasBeenReached,
zap.Int64("balance", balance),
zap.Int64("threshold", np.gasBalanceThreshold))
return
}
err = np.morphClient.TransferGas(receiver, np.mintEmitValue)
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if err != nil {
np.log.Error(logs.FrostFSCantTransferNativeGasToReceiver,
zap.String("error", err.Error()))
return
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}
np.mintEmitCache.Add(receiver.String(), curEpoch)
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}
// Process withdraw event by locking assets in the balance account.
func (np *Processor) processWithdraw(withdraw *frostfsEvent.Withdraw) {
if !np.alphabetState.IsAlphabet() {
np.log.Info(logs.FrostFSNonAlphabetModeIgnoreWithdraw)
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return
}
// create lock account
lock, err := util.Uint160DecodeBytesBE(withdraw.ID()[:util.Uint160Size])
if err != nil {
np.log.Error(logs.FrostFSCantCreateLockAccount, zap.Error(err))
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return
}
curEpoch := np.epochState.EpochCounter()
prm := balance.LockPrm{}
prm.SetID(withdraw.ID())
prm.SetUser(withdraw.User())
prm.SetLock(lock)
prm.SetAmount(np.converter.ToBalancePrecision(withdraw.Amount()))
prm.SetDueEpoch(int64(curEpoch + lockAccountLifetime))
err = np.balanceClient.Lock(prm)
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if err != nil {
np.log.Error(logs.FrostFSCantLockAssetsForWithdraw, zap.Error(err))
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}
}
// Process cheque event by transferring assets from the lock account back to
// the reserve account.
func (np *Processor) processCheque(cheque *frostfsEvent.Cheque) {
if !np.alphabetState.IsAlphabet() {
np.log.Info(logs.FrostFSNonAlphabetModeIgnoreCheque)
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return
}
prm := balance.BurnPrm{}
prm.SetTo(cheque.LockAccount())
prm.SetAmount(np.converter.ToBalancePrecision(cheque.Amount()))
prm.SetID(cheque.ID())
err := np.balanceClient.Burn(prm)
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if err != nil {
np.log.Error(logs.FrostFSCantTransferAssetsToFedContract, zap.Error(err))
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}
}