get sector set size from AMT

chain/actors/actor_miner.go

@@ -35,12 +35,10 @@ type StorageMinerActorState struct {
 
 	// All sectors this miner has committed.
 	Sectors cid.Cid // TODO: Using a HAMT for now, needs to be an AMT once we implement it
-	SectorSetSize uint64  // TODO: the AMT should be able to tell us how many items are in it. This field won't be needed at that point
 
 	// Sectors this miner is currently mining. It is only updated
 	// when a PoSt is submitted (not as each new sector commitment is added).
 	ProvingSet cid.Cid
-	ProvingSetSize uint64
 
 	// Faulty sectors reported since last SubmitPost,
 	// up to the current proving period's challenge time.
@@ -269,9 +267,13 @@ func (sma StorageMinerActor) CommitSector(act *types.Actor, vmctx types.VMContex
 	//
 	// Note: Proving period is a function of sector size; small sectors take less
 	// time to prove than large sectors do. Sector size is selected when pledging.
-	if self.ProvingSetSize == 0 {
+	pss, lerr := amt.LoadAMT(types.WrapStorage(vmctx.Storage()), self.ProvingSet)
+	if lerr != nil {
+		return nil, aerrors.Escalate(lerr, "could not load proving set node")
+	}
+
+	if pss.Count == 0 {
 		self.ProvingSet = self.Sectors
-		self.ProvingSetSize = self.SectorSetSize
 		self.ProvingPeriodEnd = vmctx.BlockHeight() + build.ProvingPeriodDuration
 	}
 
@@ -367,7 +369,7 @@ func (sma StorageMinerActor) SubmitPoSt(act *types.Actor, vmctx types.VMContext,
 
 	pss, lerr := amt.LoadAMT(types.WrapStorage(vmctx.Storage()), self.ProvingSet)
 	if lerr != nil {
-		return nil, aerrors.Escalate(lerr, "could not load sector set node")
+		return nil, aerrors.Escalate(lerr, "could not load proving set node")
 	}
 
 	var sectorInfos []sectorbuilder.SectorInfo
@@ -413,7 +415,7 @@ func (sma StorageMinerActor) SubmitPoSt(act *types.Actor, vmctx types.VMContext,
 
 	ss, lerr := amt.LoadAMT(types.WrapStorage(vmctx.Storage()), self.ProvingSet)
 	if lerr != nil {
-		return nil, aerrors.Escalate(lerr, "could not load sector set node")
+		return nil, aerrors.Escalate(lerr, "could not load proving set node")
 	}
 
 	if err := ss.BatchDelete(params.DoneSet.All()); err != nil {
@@ -429,7 +431,7 @@ func (sma StorageMinerActor) SubmitPoSt(act *types.Actor, vmctx types.VMContext,
 	}
 
 	oldPower := self.Power
-	self.Power = types.BigMul(types.NewInt(self.ProvingSetSize-uint64(len(faults))),
+	self.Power = types.BigMul(types.NewInt(pss.Count-uint64(len(faults))),
 		mi.SectorSize)
 
 	enc, err := SerializeParams(&UpdateStorageParams{Delta: types.BigSub(self.Power, oldPower)})
@@ -443,7 +445,6 @@ func (sma StorageMinerActor) SubmitPoSt(act *types.Actor, vmctx types.VMContext,
 	}
 
 	self.ProvingSet = self.Sectors
-	self.ProvingSetSize = self.SectorSetSize
 	self.NextDoneSet = params.DoneSet
 
 	c, err := vmctx.Storage().Put(self)

chain/actors/cbor_gen.go

@@ -197,7 +197,7 @@ func (t *StorageMinerActorState) MarshalCBOR(w io.Writer) error {
 		_, err := w.Write(cbg.CborNull)
 		return err
 	}
-	if _, err := w.Write([]byte{142}); err != nil {
+	if _, err := w.Write([]byte{140}); err != nil {
 		return err
 	}
 
@@ -223,22 +223,12 @@ func (t *StorageMinerActorState) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("failed to write cid field t.Sectors: %w", err)
 	}
 
-	// t.t.SectorSetSize (uint64)
-	if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, t.SectorSetSize)); err != nil {
-		return err
-	}
-
 	// t.t.ProvingSet (cid.Cid)
 
 	if err := cbg.WriteCid(w, t.ProvingSet); err != nil {
 		return xerrors.Errorf("failed to write cid field t.ProvingSet: %w", err)
 	}
 
-	// t.t.ProvingSetSize (uint64)
-	if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, t.ProvingSetSize)); err != nil {
-		return err
-	}
-
 	// t.t.CurrentFaultSet (types.BitField)
 	if err := t.CurrentFaultSet.MarshalCBOR(w); err != nil {
 		return err
@@ -287,7 +277,7 @@ func (t *StorageMinerActorState) UnmarshalCBOR(r io.Reader) error {
 		return fmt.Errorf("cbor input should be of type array")
 	}
 
-	if extra != 14 {
+	if extra != 12 {
 		return fmt.Errorf("cbor input had wrong number of fields")
 	}
 
@@ -333,16 +323,6 @@ func (t *StorageMinerActorState) UnmarshalCBOR(r io.Reader) error {
 		t.Sectors = c
 
 	}
-	// t.t.SectorSetSize (uint64)
-
-	maj, extra, err = cbg.CborReadHeader(br)
-	if err != nil {
-		return err
-	}
-	if maj != cbg.MajUnsignedInt {
-		return fmt.Errorf("wrong type for uint64 field")
-	}
-	t.SectorSetSize = extra
 	// t.t.ProvingSet (cid.Cid)
 
 	{
@@ -355,16 +335,6 @@ func (t *StorageMinerActorState) UnmarshalCBOR(r io.Reader) error {
 		t.ProvingSet = c
 
 	}
-	// t.t.ProvingSetSize (uint64)
-
-	maj, extra, err = cbg.CborReadHeader(br)
-	if err != nil {
-		return err
-	}
-	if maj != cbg.MajUnsignedInt {
-		return fmt.Errorf("wrong type for uint64 field")
-	}
-	t.ProvingSetSize = extra
 	// t.t.CurrentFaultSet (types.BitField)
 
 	{