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builtin_assets.go
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/
builtin_assets.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.VEGA file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package banking
import (
"context"
"encoding/binary"
"encoding/hex"
"sync/atomic"
"code.vegaprotocol.io/vega/core/events"
"code.vegaprotocol.io/vega/core/types"
vgcrypto "code.vegaprotocol.io/vega/libs/crypto"
"code.vegaprotocol.io/vega/libs/num"
"code.vegaprotocol.io/vega/logging"
)
func (e *Engine) WithdrawBuiltinAsset(
ctx context.Context, id, party, assetID string, amount *num.Uint,
) error {
// build the withdrawal type
w, ref := e.newWithdrawal(id, party, assetID, amount, nil)
w.Status = types.WithdrawalStatusRejected // default
e.withdrawals[w.ID] = withdrawalRef{w, ref}
asset, err := e.assets.Get(assetID)
if err != nil {
e.broker.Send(events.NewWithdrawalEvent(ctx, *w))
e.log.Error("unable to get asset by id",
logging.AssetID(assetID),
logging.Error(err))
return err
}
if !asset.IsBuiltinAsset() {
e.broker.Send(events.NewWithdrawalEvent(ctx, *w))
return ErrWrongAssetTypeUsedInBuiltinAssetChainEvent
}
return e.finalizeWithdraw(ctx, w)
}
func (e *Engine) DepositBuiltinAsset(
ctx context.Context, d *types.BuiltinAssetDeposit, id string, nonce uint64,
) error {
dep := e.newDeposit(id, d.PartyID, d.VegaAssetID, d.Amount, "") // no hash
e.broker.Send(events.NewDepositEvent(ctx, *dep))
asset, err := e.assets.Get(d.VegaAssetID)
if err != nil {
dep.Status = types.DepositStatusCancelled
e.broker.Send(events.NewDepositEvent(ctx, *dep))
e.log.Error("unable to get asset by id",
logging.AssetID(d.VegaAssetID),
logging.Error(err))
return err
}
if !asset.IsBuiltinAsset() {
dep.Status = types.DepositStatusCancelled
e.broker.Send(events.NewDepositEvent(ctx, *dep))
return ErrWrongAssetTypeUsedInBuiltinAssetChainEvent
}
// create a pretend "hash" from the nonce (which is randomly generated by the faucet)
// ready for calls to getRef()
b := make([]byte, 8)
binary.BigEndian.PutUint64(b, nonce)
state := &atomic.Uint32{}
state.Store(pendingState)
aa := &assetAction{
id: dep.ID,
state: state,
builtinD: d,
asset: asset,
txHash: hex.EncodeToString(vgcrypto.Hash(b)),
}
e.assetActs[aa.id] = aa
e.deposits[dep.ID] = dep
return e.witness.StartCheck(aa, e.onCheckDone, e.timeService.GetTimeNow().Add(defaultValidationDuration))
}
func (e *Engine) EnableBuiltinAsset(ctx context.Context, assetID string) error {
return e.finalizeAssetList(ctx, assetID)
}