lotus/chain/actors/builtin/multisig/v4.go

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package multisig
import (
"bytes"
"encoding/binary"
"fmt"
"github.com/ipfs/go-cid"
cbg "github.com/whyrusleeping/cbor-gen"
"golang.org/x/xerrors"
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"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/abi"
actorstypes "github.com/filecoin-project/go-state-types/actors"
"github.com/filecoin-project/go-state-types/manifest"
builtin4 "github.com/filecoin-project/specs-actors/v4/actors/builtin"
msig4 "github.com/filecoin-project/specs-actors/v4/actors/builtin/multisig"
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adt4 "github.com/filecoin-project/specs-actors/v4/actors/util/adt"
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"github.com/filecoin-project/lotus/chain/actors"
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"github.com/filecoin-project/lotus/chain/actors/adt"
)
var _ State = (*state4)(nil)
func load4(store adt.Store, root cid.Cid) (State, error) {
out := state4{store: store}
err := store.Get(store.Context(), root, &out)
if err != nil {
return nil, err
}
return &out, nil
}
func make4(store adt.Store, signers []address.Address, threshold uint64, startEpoch abi.ChainEpoch, unlockDuration abi.ChainEpoch, initialBalance abi.TokenAmount) (State, error) {
out := state4{store: store}
out.State = msig4.State{}
out.State.Signers = signers
out.State.NumApprovalsThreshold = threshold
out.State.StartEpoch = startEpoch
out.State.UnlockDuration = unlockDuration
out.State.InitialBalance = initialBalance
em, err := adt4.StoreEmptyMap(store, builtin4.DefaultHamtBitwidth)
if err != nil {
return nil, err
}
out.State.PendingTxns = em
return &out, nil
}
type state4 struct {
msig4.State
store adt.Store
}
func (s *state4) LockedBalance(currEpoch abi.ChainEpoch) (abi.TokenAmount, error) {
return s.State.AmountLocked(currEpoch - s.State.StartEpoch), nil
}
func (s *state4) StartEpoch() (abi.ChainEpoch, error) {
return s.State.StartEpoch, nil
}
func (s *state4) UnlockDuration() (abi.ChainEpoch, error) {
return s.State.UnlockDuration, nil
}
func (s *state4) InitialBalance() (abi.TokenAmount, error) {
return s.State.InitialBalance, nil
}
func (s *state4) Threshold() (uint64, error) {
return s.State.NumApprovalsThreshold, nil
}
func (s *state4) Signers() ([]address.Address, error) {
return s.State.Signers, nil
}
func (s *state4) ForEachPendingTxn(cb func(id int64, txn Transaction) error) error {
arr, err := adt4.AsMap(s.store, s.State.PendingTxns, builtin4.DefaultHamtBitwidth)
if err != nil {
return err
}
var out msig4.Transaction
return arr.ForEach(&out, func(key string) error {
txid, n := binary.Varint([]byte(key))
if n <= 0 {
return xerrors.Errorf("invalid pending transaction key: %v", key)
}
return cb(txid, (Transaction)(out)) //nolint:unconvert
})
}
func (s *state4) PendingTxnChanged(other State) (bool, error) {
other4, ok := other.(*state4)
if !ok {
// treat an upgrade as a change, always
return true, nil
}
return !s.State.PendingTxns.Equals(other4.PendingTxns), nil
}
func (s *state4) transactions() (adt.Map, error) {
return adt4.AsMap(s.store, s.PendingTxns, builtin4.DefaultHamtBitwidth)
}
func (s *state4) decodeTransaction(val *cbg.Deferred) (Transaction, error) {
var tx msig4.Transaction
if err := tx.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
return Transaction{}, err
}
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return Transaction(tx), nil
}
func (s *state4) GetState() interface{} {
return &s.State
}
func (s *state4) ActorKey() string {
return manifest.MultisigKey
}
func (s *state4) ActorVersion() actorstypes.Version {
return actorstypes.Version4
}
func (s *state4) Code() cid.Cid {
code, ok := actors.GetActorCodeID(s.ActorVersion(), s.ActorKey())
if !ok {
panic(fmt.Errorf("didn't find actor %v code id for actor version %d", s.ActorKey(), s.ActorVersion()))
}
return code
}