lotus/chain/types/vmcontext.go

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package types
import (
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"github.com/filecoin-project/go-amt-ipld"
"github.com/filecoin-project/go-lotus/chain/actors/aerrors"
"github.com/filecoin-project/go-lotus/chain/address"
"github.com/ipfs/go-cid"
"github.com/ipfs/go-hamt-ipld"
cbg "github.com/whyrusleeping/cbor-gen"
)
type Storage interface {
Put(cbg.CBORMarshaler) (cid.Cid, aerrors.ActorError)
Get(cid.Cid, cbg.CBORUnmarshaler) aerrors.ActorError
GetHead() cid.Cid
// Commit sets the new head of the actors state as long as the current
// state matches 'oldh'
Commit(oldh cid.Cid, newh cid.Cid) aerrors.ActorError
}
type StateTree interface {
SetActor(addr address.Address, act *Actor) error
GetActor(addr address.Address) (*Actor, error)
}
type VMContext interface {
Message() *Message
Origin() address.Address
Ipld() *hamt.CborIpldStore
Send(to address.Address, method uint64, value BigInt, params []byte) ([]byte, aerrors.ActorError)
BlockHeight() uint64
GasUsed() BigInt
Storage() Storage
StateTree() (StateTree, aerrors.ActorError)
VerifySignature(sig *Signature, from address.Address, data []byte) aerrors.ActorError
ChargeGas(uint64) aerrors.ActorError
}
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type storageWrapper struct {
s Storage
}
func (sw *storageWrapper) Put(i interface{}) (cid.Cid, error) {
c, err := sw.s.Put(i.(cbg.CBORMarshaler))
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if err != nil {
return cid.Undef, err
}
return c, nil
}
func (sw *storageWrapper) Get(c cid.Cid, out interface{}) error {
if err := sw.s.Get(c, out.(cbg.CBORUnmarshaler)); err != nil {
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return err
}
return nil
}
func WrapStorage(s Storage) amt.Blocks {
return &storageWrapper{s}
}