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Fix init actor address map diffing #4875
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| package init | ||
|
|
||
| import ( | ||
| "bytes" | ||
|
|
||
| "github.com/filecoin-project/go-address" | ||
| "github.com/filecoin-project/go-state-types/abi" | ||
| typegen "github.com/whyrusleeping/cbor-gen" | ||
|
|
||
| "github.com/filecoin-project/lotus/chain/actors/adt" | ||
| ) | ||
|
|
||
| func DiffAddressMap(pre, cur State) (*AddressMapChanges, error) { | ||
| prem, err := pre.addressMap() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| curm, err := cur.addressMap() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| preRoot, err := prem.Root() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| curRoot, err := curm.Root() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| results := new(AddressMapChanges) | ||
| // no change. | ||
| if curRoot.Equals(preRoot) { | ||
| return results, nil | ||
| } | ||
|
|
||
| err = adt.DiffAdtMap(prem, curm, &addressMapDiffer{results, pre, cur}) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return results, nil | ||
| } | ||
|
|
||
| type addressMapDiffer struct { | ||
| Results *AddressMapChanges | ||
| pre, adter State | ||
| } | ||
|
|
||
| type AddressMapChanges struct { | ||
| Added []AddressPair | ||
| Modified []AddressChange | ||
| Removed []AddressPair | ||
| } | ||
|
|
||
| func (i *addressMapDiffer) AsKey(key string) (abi.Keyer, error) { | ||
| addr, err := address.NewFromBytes([]byte(key)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return abi.AddrKey(addr), nil | ||
| } | ||
|
|
||
| func (i *addressMapDiffer) Add(key string, val *typegen.Deferred) error { | ||
| pkAddr, err := address.NewFromBytes([]byte(key)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| id := new(typegen.CborInt) | ||
| if err := id.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil { | ||
| return err | ||
| } | ||
| idAddr, err := address.NewIDAddress(uint64(*id)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| i.Results.Added = append(i.Results.Added, AddressPair{ | ||
| ID: idAddr, | ||
| PK: pkAddr, | ||
| }) | ||
| return nil | ||
| } | ||
|
|
||
| func (i *addressMapDiffer) Modify(key string, from, to *typegen.Deferred) error { | ||
| pkAddr, err := address.NewFromBytes([]byte(key)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| fromID := new(typegen.CborInt) | ||
| if err := fromID.UnmarshalCBOR(bytes.NewReader(from.Raw)); err != nil { | ||
| return err | ||
| } | ||
| fromIDAddr, err := address.NewIDAddress(uint64(*fromID)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| toID := new(typegen.CborInt) | ||
| if err := toID.UnmarshalCBOR(bytes.NewReader(to.Raw)); err != nil { | ||
| return err | ||
| } | ||
| toIDAddr, err := address.NewIDAddress(uint64(*toID)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| i.Results.Modified = append(i.Results.Modified, AddressChange{ | ||
| From: AddressPair{ | ||
| ID: fromIDAddr, | ||
| PK: pkAddr, | ||
| }, | ||
| To: AddressPair{ | ||
| ID: toIDAddr, | ||
| PK: pkAddr, | ||
| }, | ||
| }) | ||
| return nil | ||
| } | ||
|
|
||
| func (i *addressMapDiffer) Remove(key string, val *typegen.Deferred) error { | ||
| pkAddr, err := address.NewFromBytes([]byte(key)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| id := new(typegen.CborInt) | ||
| if err := id.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil { | ||
| return err | ||
| } | ||
| idAddr, err := address.NewIDAddress(uint64(*id)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| i.Results.Removed = append(i.Results.Removed, AddressPair{ | ||
| ID: idAddr, | ||
| PK: pkAddr, | ||
| }) | ||
| return nil | ||
| } | ||
|
|
||
| type AddressChange struct { | ||
| From AddressPair | ||
| To AddressPair | ||
| } | ||
|
|
||
| type AddressPair struct { | ||
| ID address.Address | ||
| PK address.Address | ||
| } |
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Motivation for change lies in the bug here. This should be looking in the oldState to see if a new address has been added. New ADT logic avoids this bug.