prysm-pulse/beacon-chain/blockchain/chain_info.go
Raul Jordan cc741ed8af
Ensure New State Type Tests Pass in Prysm (#4646)
* begin state service

* begin on the state trie idea

* created beacon state structure

* add in the full clone getter

* return by value instead

* add all setters

* new state setters are being completed

* arrays roots exposed

*  close to finishing all these headerssss

* functionality complete

* added in proto benchmark test

* test for compatibility

* add test for compat

* comments fixed

* add clone

* add clone

* remove underlying copies

* make it immutable

* integrate it into chainservice

* revert

* wrap up comments for package

* address all comments and godocs

* address all comments

* clone the pending attestation properly

* properly clone remaining items

* tests pass fixed bug

* begin using it instead of head state

* prevent nil pointer exceptions

* begin using new struct in db

* integrated new type into db package

* add proper nil checks

* using new state in archiver

* refactored much of core

* editing all the precompute functions

* done with most core refactor

* fixed up some bugs in the clone comparisons

* append current epoch atts

* add missing setters

* add new setters

* fix other core methods

* fix up transition

* main service and forkchoice

* fix rpc

* integrated to powchain

* some more changes

* fix build

* improve processing of deposits

* fix error

* prevent panic

* comment

* fix process att

* gaz

* fix up att process

* resolve existing review comments

* resolve another batch of gh comments

* resolve broken cpt state

* revise testutil to use the new state

* begin updating the state transition func to pass in more compartmentalized args

* finish editing transition function to return errors

* block operations pretty much done with refactor

* state transition fully refactored

* got epoch processing completed

* fix build in fork choice

* fixing more of the build

* fix up broken sync package

* it builds nowww it buildssss

* revert registry changes

* Recompute on Read (#4627)

* compute on read

* fix up eth1 data votes

* looking into slashings bug introduced in core/

* able to advance more slots

* add logging

* can now sync with testnet yay

* remove the leaves algorithm and other merkle imports

* expose initialize unsafe funcs

* Update beacon-chain/db/kv/state.go

* lint

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>

* More Optimizations for New State (#4641)

* map optimization

* more optimizations

* use a custom hasher

* comment

* block operations optimizations

* Update beacon-chain/state/types.go

Co-Authored-By: Raul Jordan <raul@prysmaticlabs.com>

* fixed up various operations to use the validator index map access

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>

* archiver tests pass

* fixing cache tests

* cache tests passing

* edited validator tests

* powchain tests passing

* halfway thru sync tests

* more sync test fixes

* add in tests for state/

* working through rpc tests

* assignments tests passed

* almost done with rpc/beacon tests

* resolved painful validator test

* fixed up even more tests

* resolve tests

* fix build

* reduce a randao mixes copy

* fixes under //beacon-chain/blockchain/...

* build //beacon-chain/core/...

* fixes

* Runtime Optimizations (#4648)

* parallelize shuffling

* clean up

* lint

* fix build

* use callback to read from registry

* fix array roots and size map

* new improvements

* reduce hash allocs

* improved shuffling

* terence's review

* use different method

* raul's comment

* new array roots

* remove clone in pre-compute

* Update beacon-chain/state/types.go

Co-Authored-By: Raul Jordan <raul@prysmaticlabs.com>

* raul's review

* lint

* fix build issues

* fix visibility

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>

* fix visibility

* build works for all

* fix blockchain test

* fix a few tests

* fix more tests

* update validator in slashing

* archiver passing

* fixed rpc/validator

* progress on core tests

* resolve broken rpc tests

* blockchain tests passed

* fix up some tests in core

* fix message diff

* remove unnecessary save

* Save validator after slashing

* Update validators one by one

* another update

* fix everything

* fix more precompute tests

* fix blocks tests

* more elegant fix

* more helper fixes

* change back ?

* fix test

* fix skip slot

* fix test

* reset caches

* fix testutil

* raceoff fixed

* passing

* Retrieve cached state in the beginning

* lint

* Fixed tests part 1

* Fixed rest of the tests

* Minor changes to avoid copying, small refactor to reduce deplicated code

* Handle att req for slot 0

* New beacon state: Only populate merkle layers as needed, copy merkle layers on copy/clone. (#4689)

* Only populate merkle layers as needed, copy merkle layers on copy/clone.

* use custom copy

* Make maps of correct size

* slightly fast, doesn't wait for lock

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>

* Target root can't be 0x00

* Don't use cache for current slot (may not be the right fix)

* fixed up tests

* Remove some copy for init sync. Not sure if it is safe enough for runtime though... testing...

* Align with prev logic for process slots cachedState.Slot() < slot

* Fix Initial Sync Flag (#4692)

* fixes

* fix up some test failures due to lack of nil checks

* fix up some test failures due to lack of nil checks

* fix up imports

* revert some changes

* imports

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>

* resolving further conflicts

* Better skip slot cache (#4694)

* Return copy of skip slot cache state, disable skip slot cache on sync

* fix

* Fix pruning

* fix up issues with broken tests

Co-authored-by: Nishant Das <nish1993@hotmail.com>
Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
Co-authored-by: shayzluf <thezluf@gmail.com>
Co-authored-by: terence tsao <terence@prysmaticlabs.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2020-01-31 12:57:01 -08:00

203 lines
6.1 KiB
Go

package blockchain
import (
"bytes"
"context"
"time"
"github.com/gogo/protobuf/proto"
ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
"github.com/prysmaticlabs/go-ssz"
"github.com/prysmaticlabs/prysm/beacon-chain/core/epoch/precompute"
"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
"github.com/prysmaticlabs/prysm/beacon-chain/state"
pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
"github.com/prysmaticlabs/prysm/shared/params"
)
// ChainInfoFetcher defines a common interface for methods in blockchain service which
// directly retrieves chain info related data.
type ChainInfoFetcher interface {
HeadFetcher
FinalizationFetcher
}
// GenesisTimeFetcher retrieves the Eth2 genesis timestamp.
type GenesisTimeFetcher interface {
GenesisTime() time.Time
}
// HeadFetcher defines a common interface for methods in blockchain service which
// directly retrieves head related data.
type HeadFetcher interface {
HeadSlot() uint64
HeadRoot(ctx context.Context) ([]byte, error)
HeadBlock() *ethpb.SignedBeaconBlock
HeadState(ctx context.Context) (*state.BeaconState, error)
HeadValidatorsIndices(epoch uint64) ([]uint64, error)
HeadSeed(epoch uint64) ([32]byte, error)
}
// ForkFetcher retrieves the current fork information of the Ethereum beacon chain.
type ForkFetcher interface {
CurrentFork() *pb.Fork
}
// FinalizationFetcher defines a common interface for methods in blockchain service which
// directly retrieves finalization and justification related data.
type FinalizationFetcher interface {
FinalizedCheckpt() *ethpb.Checkpoint
CurrentJustifiedCheckpt() *ethpb.Checkpoint
PreviousJustifiedCheckpt() *ethpb.Checkpoint
}
// ParticipationFetcher defines a common interface for methods in blockchain service which
// directly retrieves validator participation related data.
type ParticipationFetcher interface {
Participation(epoch uint64) *precompute.Balance
}
// FinalizedCheckpt returns the latest finalized checkpoint from head state.
func (s *Service) FinalizedCheckpt() *ethpb.Checkpoint {
if s.headState == nil || s.headState.FinalizedCheckpoint() == nil {
return &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
}
cpt := s.headState.FinalizedCheckpoint()
// If head state exists but there hasn't been a finalized check point,
// the check point's root should refer to genesis block root.
if bytes.Equal(cpt.Root, params.BeaconConfig().ZeroHash[:]) {
return &ethpb.Checkpoint{Root: s.genesisRoot[:]}
}
return cpt
}
// CurrentJustifiedCheckpt returns the current justified checkpoint from head state.
func (s *Service) CurrentJustifiedCheckpt() *ethpb.Checkpoint {
if s.headState == nil || s.headState.CurrentJustifiedCheckpoint() == nil {
return &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
}
cpt := s.headState.CurrentJustifiedCheckpoint()
// If head state exists but there hasn't been a justified check point,
// the check point root should refer to genesis block root.
if bytes.Equal(cpt.Root, params.BeaconConfig().ZeroHash[:]) {
return &ethpb.Checkpoint{Root: s.genesisRoot[:]}
}
return cpt
}
// PreviousJustifiedCheckpt returns the previous justified checkpoint from head state.
func (s *Service) PreviousJustifiedCheckpt() *ethpb.Checkpoint {
if s.headState == nil || s.headState.PreviousJustifiedCheckpoint() == nil {
return &ethpb.Checkpoint{Root: params.BeaconConfig().ZeroHash[:]}
}
cpt := s.headState.PreviousJustifiedCheckpoint()
// If head state exists but there hasn't been a justified check point,
// the check point root should refer to genesis block root.
if bytes.Equal(cpt.Root, params.BeaconConfig().ZeroHash[:]) {
return &ethpb.Checkpoint{Root: s.genesisRoot[:]}
}
return cpt
}
// HeadSlot returns the slot of the head of the chain.
func (s *Service) HeadSlot() uint64 {
s.headLock.RLock()
defer s.headLock.RUnlock()
return s.headSlot
}
// HeadRoot returns the root of the head of the chain.
func (s *Service) HeadRoot(ctx context.Context) ([]byte, error) {
s.headLock.RLock()
defer s.headLock.RUnlock()
root := s.canonicalRoots[s.headSlot]
if len(root) != 0 {
return root, nil
}
b, err := s.beaconDB.HeadBlock(ctx)
if err != nil {
return nil, err
}
if b == nil {
return params.BeaconConfig().ZeroHash[:], nil
}
r, err := ssz.HashTreeRoot(b.Block)
if err != nil {
return nil, err
}
return r[:], nil
}
// HeadBlock returns the head block of the chain.
func (s *Service) HeadBlock() *ethpb.SignedBeaconBlock {
s.headLock.RLock()
defer s.headLock.RUnlock()
return proto.Clone(s.headBlock).(*ethpb.SignedBeaconBlock)
}
// HeadState returns the head state of the chain.
// If the head state is nil from service struct,
// it will attempt to get from DB and error if nil again.
func (s *Service) HeadState(ctx context.Context) (*state.BeaconState, error) {
s.headLock.RLock()
defer s.headLock.RUnlock()
if s.headState == nil {
return s.beaconDB.HeadState(ctx)
}
return s.headState, nil
}
// HeadValidatorsIndices returns a list of active validator indices from the head view of a given epoch.
func (s *Service) HeadValidatorsIndices(epoch uint64) ([]uint64, error) {
if s.headState == nil {
return []uint64{}, nil
}
return helpers.ActiveValidatorIndices(s.headState, epoch)
}
// HeadSeed returns the seed from the head view of a given epoch.
func (s *Service) HeadSeed(epoch uint64) ([32]byte, error) {
if s.headState == nil {
return [32]byte{}, nil
}
return helpers.Seed(s.headState, epoch, params.BeaconConfig().DomainBeaconAttester)
}
// GenesisTime returns the genesis time of beacon chain.
func (s *Service) GenesisTime() time.Time {
return s.genesisTime
}
// CurrentFork retrieves the latest fork information of the beacon chain.
func (s *Service) CurrentFork() *pb.Fork {
if s.headState == nil {
return &pb.Fork{
PreviousVersion: params.BeaconConfig().GenesisForkVersion,
CurrentVersion: params.BeaconConfig().GenesisForkVersion,
}
}
return s.headState.Fork()
}
// Participation returns the participation stats of a given epoch.
func (s *Service) Participation(epoch uint64) *precompute.Balance {
s.epochParticipationLock.RLock()
defer s.epochParticipationLock.RUnlock()
return s.epochParticipation[epoch]
}