lotus/chain/actors/builtin/multisig/v1.go
Steven Allen d9656f5220 add a generic load method for actor state
This will make it easier to load arbitrary actors. We can:

* Type switch (sort of unsafe, may want marker methods?)
* Use this with `vm.MutateActorState`.
2020-09-25 12:49:39 -07:00

71 lines
1.7 KiB
Go

package multisig
import (
"encoding/binary"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/abi"
"github.com/ipfs/go-cid"
"golang.org/x/xerrors"
"github.com/filecoin-project/lotus/chain/actors/adt"
msig1 "github.com/filecoin-project/specs-actors/actors/builtin/multisig"
adt1 "github.com/filecoin-project/specs-actors/actors/util/adt"
)
var _ State = (*state1)(nil)
func load1(store adt.Store, root cid.Cid) (State, error) {
out := state1{store: store}
err := store.Get(store.Context(), root, &out)
if err != nil {
return nil, err
}
return &out, nil
}
type state1 struct {
msig1.State
store adt.Store
}
func (s *state1) LockedBalance(currEpoch abi.ChainEpoch) (abi.TokenAmount, error) {
return s.State.AmountLocked(currEpoch - s.State.StartEpoch), nil
}
func (s *state1) StartEpoch() (abi.ChainEpoch, error) {
return s.State.StartEpoch, nil
}
func (s *state1) UnlockDuration() (abi.ChainEpoch, error) {
return s.State.UnlockDuration, nil
}
func (s *state1) InitialBalance() (abi.TokenAmount, error) {
return s.State.InitialBalance, nil
}
func (s *state1) Threshold() (uint64, error) {
return s.State.NumApprovalsThreshold, nil
}
func (s *state1) Signers() ([]address.Address, error) {
return s.State.Signers, nil
}
func (s *state1) ForEachPendingTxn(cb func(id int64, txn Transaction) error) error {
arr, err := adt1.AsMap(s.store, s.State.PendingTxns)
if err != nil {
return err
}
var out msig1.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))
})
}