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Speed up worker key retrieval #4885

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Nov 17, 2020
Merged

Speed up worker key retrieval #4885

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24 changes: 18 additions & 6 deletions chain/vm/syscalls.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,10 @@ import (
goruntime "runtime"
"sync"

"github.com/filecoin-project/go-state-types/network"

"github.com/filecoin-project/lotus/chain/actors/policy"

"github.com/filecoin-project/go-address"
"github.com/ipfs/go-cid"
cbor "github.com/ipfs/go-ipld-cbor"
Expand Down Expand Up @@ -40,7 +44,9 @@ func Syscalls(verifier ffiwrapper.Verifier) SyscallBuilder {
return func(ctx context.Context, rt *Runtime) runtime2.Syscalls {

return &syscallShim{
ctx: ctx,
ctx: ctx,
epoch: rt.CurrEpoch(),
networkVersion: rt.NetworkVersion(),

actor: rt.Receiver(),
cstate: rt.state,
Expand All @@ -55,11 +61,13 @@ func Syscalls(verifier ffiwrapper.Verifier) SyscallBuilder {
type syscallShim struct {
ctx context.Context

lbState LookbackStateGetter
actor address.Address
cstate *state.StateTree
cst cbor.IpldStore
verifier ffiwrapper.Verifier
epoch abi.ChainEpoch
networkVersion network.Version
lbState LookbackStateGetter
actor address.Address
cstate *state.StateTree
cst cbor.IpldStore
verifier ffiwrapper.Verifier
}

func (ss *syscallShim) ComputeUnsealedSectorCID(st abi.RegisteredSealProof, pieces []abi.PieceInfo) (cid.Cid, error) {
Expand Down Expand Up @@ -202,6 +210,10 @@ func (ss *syscallShim) VerifyBlockSig(blk *types.BlockHeader) error {
}

func (ss *syscallShim) workerKeyAtLookback(height abi.ChainEpoch) (address.Address, error) {
if ss.networkVersion >= network.Version7 && height < ss.epoch-policy.ChainFinality {
return address.Undef, xerrors.Errorf("cannot get worker key (currEpoch %d, height %d)", ss.epoch, height)
}

lbState, err := ss.lbState(ss.ctx, height)
if err != nil {
return address.Undef, err
Expand Down