store

package
v1.11.2-rc1 Latest Latest
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 Go to latest Published: Aug 23, 2021 License: Apache-2.0, MIT Imports: 45 Imported by: 58

Documentation

Index

Constants

View Source 
const (
	HCRevert  = "revert"
	HCApply   = "apply"
	HCCurrent = "current"
)

Variables

View Source 
var DefaultChainIndexCacheSize = 32 << 10
View Source 
var DefaultMsgMetaCacheSize = 2048
View Source 
var DefaultTipSetCacheSize = 8192
View Source 
var ErrNotifeeDone = errors.New("notifee is done and should be removed")

Functions

func ActorStore added in v0.3.0 

func ActorStore(ctx context.Context, bs bstore.Blockstore) adt.Store

func ComputeNextBaseFee added in v0.7.0 

func ComputeNextBaseFee(baseFee types.BigInt, gasLimitUsed int64, noOfBlocks int, epoch abi.ChainEpoch) types.BigInt

func DrawRandomness added in v0.3.0 

func DrawRandomness(rbase []byte, pers crypto.DomainSeparationTag, round abi.ChainEpoch, entropy []byte) ([]byte, error)

func FlushValidationCache added in v1.4.1 

func FlushValidationCache(ds datastore.Batching) error

func NewChainRand 

func NewChainRand(cs *ChainStore, blks []cid.Cid) vm.Rand

func PutMessage 

func PutMessage(bs bstore.Blockstore, m storable) (cid.Cid, error)

func ReorgOps added in v0.5.2 

func ReorgOps(lts func(types.TipSetKey) (*types.TipSet, error), a, b *types.TipSet) ([]*types.TipSet, []*types.TipSet, error)

Types

type BlockMessages added in v0.5.0 

type BlockMessages struct {
	Miner         address.Address
	BlsMessages   []types.ChainMsg
	SecpkMessages []types.ChainMsg
	WinCount      int64
}

type ChainIndex added in v0.4.0 

type ChainIndex struct {
	// contains filtered or unexported fields
}

func NewChainIndex added in v0.4.0 

func NewChainIndex(lts loadTipSetFunc) *ChainIndex

func (*ChainIndex) GetTipsetByHeight added in v0.4.0 

func (ci *ChainIndex) GetTipsetByHeight(_ context.Context, from *types.TipSet, to abi.ChainEpoch) (*types.TipSet, error)

func (*ChainIndex) GetTipsetByHeightWithoutCache added in v0.4.0 

func (ci *ChainIndex) GetTipsetByHeightWithoutCache(from *types.TipSet, to abi.ChainEpoch) (*types.TipSet, error)

type ChainStore 

type ChainStore struct {
	// contains filtered or unexported fields
}

ChainStore is the main point of access to chain data.

Raw chain data is stored in the Blockstore, with relevant markers (genesis, latest head tipset references) being tracked in the Datastore (key-value store).

To alleviate disk access, the ChainStore has two ARC caches:

  1. a tipset cache
  2. a block => messages references cache.

func NewChainStore 

func NewChainStore(chainBs bstore.Blockstore, stateBs bstore.Blockstore, ds dstore.Batching, j journal.Journal) *ChainStore

func (*ChainStore) ActorStore added in v1.5.1 

func (cs *ChainStore) ActorStore(ctx context.Context) adt.Store

func (*ChainStore) AddBlock 

func (cs *ChainStore) AddBlock(ctx context.Context, b *types.BlockHeader) error

func (*ChainStore) AddToTipSetTracker 

func (cs *ChainStore) AddToTipSetTracker(b *types.BlockHeader) error

func (*ChainStore) BlockMsgsForTipset added in v0.5.0 

func (cs *ChainStore) BlockMsgsForTipset(ts *types.TipSet) ([]BlockMessages, error)

func (*ChainStore) ChainBlockstore added in v1.5.1 

func (cs *ChainStore) ChainBlockstore() bstore.Blockstore

ChainBlockstore returns the chain blockstore. Currently the chain and state // stores are both backed by the same physical store, albeit with different // caching policies, but in the future they will segregate.

func (*ChainStore) Close added in v1.2.0 

func (cs *ChainStore) Close() error

func (*ChainStore) ComputeBaseFee added in v0.5.0 

func (cs *ChainStore) ComputeBaseFee(ctx context.Context, ts *types.TipSet) (abi.TokenAmount, error)

func (*ChainStore) Contains 

func (cs *ChainStore) Contains(ts *types.TipSet) (bool, error)

Contains returns whether our BlockStore has all blocks in the supplied TipSet.

func (*ChainStore) Export added in v0.2.6 

func (cs *ChainStore) Export(ctx context.Context, ts *types.TipSet, inclRecentRoots abi.ChainEpoch, skipOldMsgs bool, w io.Writer) error

func (*ChainStore) FlushValidationCache added in v0.10.0 

func (cs *ChainStore) FlushValidationCache() error

FlushValidationCache removes all results of block validation from the chain metadata store. Usually the first step after a new chain import.

func (*ChainStore) ForceHeadSilent added in v1.1.3 

func (cs *ChainStore) ForceHeadSilent(_ context.Context, ts *types.TipSet) error

ForceHeadSilent forces a chain head tipset without triggering a reorg operation.

CAUTION: Use it only for testing, such as to teleport the chain to a particular tipset to carry out a benchmark, verification, etc. on a chain segment.

func (*ChainStore) GetBeaconRandomness added in v0.5.0 

func (cs *ChainStore) GetBeaconRandomness(ctx context.Context, blks []cid.Cid, pers crypto.DomainSeparationTag, round abi.ChainEpoch, entropy []byte, lookback bool) ([]byte, error)

func (*ChainStore) GetBeaconRandomnessLookingBack added in v1.10.0 

func (cs *ChainStore) GetBeaconRandomnessLookingBack(ctx context.Context, blks []cid.Cid, pers crypto.DomainSeparationTag, round abi.ChainEpoch, entropy []byte) ([]byte, error)

func (*ChainStore) GetBeaconRandomnessLookingForward added in v1.10.0 

func (cs *ChainStore) GetBeaconRandomnessLookingForward(ctx context.Context, blks []cid.Cid, pers crypto.DomainSeparationTag, round abi.ChainEpoch, entropy []byte) ([]byte, error)

func (*ChainStore) GetBlock 

func (cs *ChainStore) GetBlock(c cid.Cid) (*types.BlockHeader, error)

GetBlock fetches a BlockHeader with the supplied CID. It returns blockstore.ErrNotFound if the block was not found in the BlockStore.

func (*ChainStore) GetCMessage 

func (cs *ChainStore) GetCMessage(c cid.Cid) (types.ChainMsg, error)

func (*ChainStore) GetChainRandomness added in v0.5.0 

func (cs *ChainStore) GetChainRandomness(ctx context.Context, blks []cid.Cid, pers crypto.DomainSeparationTag, round abi.ChainEpoch, entropy []byte, lookback bool) ([]byte, error)

func (*ChainStore) GetChainRandomnessLookingBack added in v1.10.0 

func (cs *ChainStore) GetChainRandomnessLookingBack(ctx context.Context, blks []cid.Cid, pers crypto.DomainSeparationTag, round abi.ChainEpoch, entropy []byte) ([]byte, error)

func (*ChainStore) GetChainRandomnessLookingForward added in v1.10.0 

func (cs *ChainStore) GetChainRandomnessLookingForward(ctx context.Context, blks []cid.Cid, pers crypto.DomainSeparationTag, round abi.ChainEpoch, entropy []byte) ([]byte, error)

func (*ChainStore) GetCheckpoint added in v1.11.0 

func (cs *ChainStore) GetCheckpoint() *types.TipSet

func (*ChainStore) GetGenesis 

func (cs *ChainStore) GetGenesis() (*types.BlockHeader, error)

func (*ChainStore) GetHeaviestTipSet 

func (cs *ChainStore) GetHeaviestTipSet() (ts *types.TipSet)

GetHeaviestTipSet returns the current heaviest tipset known (i.e. our head).

func (*ChainStore) GetLatestBeaconEntry added in v0.3.0 

func (cs *ChainStore) GetLatestBeaconEntry(ts *types.TipSet) (*types.BeaconEntry, error)

func (*ChainStore) GetMessage 

func (cs *ChainStore) GetMessage(c cid.Cid) (*types.Message, error)

func (*ChainStore) GetParentReceipt 

func (cs *ChainStore) GetParentReceipt(b *types.BlockHeader, i int) (*types.MessageReceipt, error)

func (*ChainStore) GetPath added in v0.2.5 

func (cs *ChainStore) GetPath(ctx context.Context, from types.TipSetKey, to types.TipSetKey) ([]*api.HeadChange, error)

GetPath returns the sequence of atomic head change operations that need to be applied in order to switch the head of the chain from the `from` tipset to the `to` tipset.

func (*ChainStore) GetSignedMessage 

func (cs *ChainStore) GetSignedMessage(c cid.Cid) (*types.SignedMessage, error)

func (*ChainStore) GetTipSetFromKey added in v0.2.8 

func (cs *ChainStore) GetTipSetFromKey(tsk types.TipSetKey) (*types.TipSet, error)

func (*ChainStore) GetTipsetByHeight 

func (cs *ChainStore) GetTipsetByHeight(ctx context.Context, h abi.ChainEpoch, ts *types.TipSet, prev bool) (*types.TipSet, error)

GetTipsetByHeight returns the tipset on the chain behind 'ts' at the given height. In the case that the given height is a null round, the 'prev' flag selects the tipset before the null round if true, and the tipset following the null round if false.

func (*ChainStore) Import added in v0.2.6 

func (cs *ChainStore) Import(r io.Reader) (*types.TipSet, error)

func (*ChainStore) IsAncestorOf 

func (cs *ChainStore) IsAncestorOf(a, b *types.TipSet) (bool, error)

IsAncestorOf returns true if 'a' is an ancestor of 'b'

func (*ChainStore) IsBlockValidated added in v0.4.0 

func (cs *ChainStore) IsBlockValidated(ctx context.Context, blkid cid.Cid) (bool, error)

func (*ChainStore) Load 

func (cs *ChainStore) Load() error

func (*ChainStore) LoadMessagesFromCids 

func (cs *ChainStore) LoadMessagesFromCids(cids []cid.Cid) ([]*types.Message, error)

func (*ChainStore) LoadSignedMessagesFromCids 

func (cs *ChainStore) LoadSignedMessagesFromCids(cids []cid.Cid) ([]*types.SignedMessage, error)

func (*ChainStore) LoadTipSet 

func (cs *ChainStore) LoadTipSet(tsk types.TipSetKey) (*types.TipSet, error)

func (*ChainStore) MarkBlockAsValidated added in v0.4.0 

func (cs *ChainStore) MarkBlockAsValidated(ctx context.Context, blkid cid.Cid) error

func (*ChainStore) MaybeTakeHeavierTipSet 

func (cs *ChainStore) MaybeTakeHeavierTipSet(ctx context.Context, ts *types.TipSet) error

MaybeTakeHeavierTipSet evaluates the incoming tipset and locks it in our internal state as our new head, if and only if it is heavier than the current head and does not exceed the maximum fork length.

func (*ChainStore) MessagesForBlock 

func (cs *ChainStore) MessagesForBlock(b *types.BlockHeader) ([]*types.Message, []*types.SignedMessage, error)

func (*ChainStore) MessagesForTipset 

func (cs *ChainStore) MessagesForTipset(ts *types.TipSet) ([]types.ChainMsg, error)

func (*ChainStore) NearestCommonAncestor 

func (cs *ChainStore) NearestCommonAncestor(a, b *types.TipSet) (*types.TipSet, error)

func (*ChainStore) PersistBlockHeaders 

func (cs *ChainStore) PersistBlockHeaders(b ...*types.BlockHeader) error

func (*ChainStore) PutMessage 

func (cs *ChainStore) PutMessage(m storable) (cid.Cid, error)

func (*ChainStore) PutTipSet 

func (cs *ChainStore) PutTipSet(ctx context.Context, ts *types.TipSet) error

func (*ChainStore) ReadMsgMetaCids added in v0.5.8 

func (cs *ChainStore) ReadMsgMetaCids(mmc cid.Cid) ([]cid.Cid, []cid.Cid, error)

func (*ChainStore) RemoveCheckpoint added in v1.11.0 

func (cs *ChainStore) RemoveCheckpoint() error

RemoveCheckpoint removes the current checkpoint.

func (*ChainStore) ReorgOps 

func (cs *ChainStore) ReorgOps(a, b *types.TipSet) ([]*types.TipSet, []*types.TipSet, error)

ReorgOps takes two tipsets (which can be at different heights), and walks their corresponding chains backwards one step at a time until we find a common ancestor. It then returns the respective chain segments that fork from the identified ancestor, in reverse order, where the first element of each slice is the supplied tipset, and the last element is the common ancestor.

If an error happens along the way, we return the error with nil slices.

func (*ChainStore) SetCheckpoint added in v1.11.0 

func (cs *ChainStore) SetCheckpoint(ts *types.TipSet) error

SetCheckpoint will set a checkpoint past which the chainstore will not allow forks.

NOTE: Checkpoints cannot be set beyond ForkLengthThreshold epochs in the past.

func (*ChainStore) SetGenesis 

func (cs *ChainStore) SetGenesis(b *types.BlockHeader) error

func (*ChainStore) SetHead 

func (cs *ChainStore) SetHead(ts *types.TipSet) error

SetHead sets the chainstores current 'best' head node. This should only be called if something is broken and needs fixing.

This function will bypass and remove any checkpoints.

func (*ChainStore) StateBlockstore added in v1.5.1 

func (cs *ChainStore) StateBlockstore() bstore.Blockstore

StateBlockstore returns the state blockstore. Currently the chain and state stores are both backed by the same physical store, albeit with different caching policies, but in the future they will segregate.

func (*ChainStore) SubHeadChanges 

func (cs *ChainStore) SubHeadChanges(ctx context.Context) chan []*api.HeadChange

func (*ChainStore) SubscribeHeadChanges 

func (cs *ChainStore) SubscribeHeadChanges(f ReorgNotifee)

func (*ChainStore) TryFillTipSet 

func (cs *ChainStore) TryFillTipSet(ts *types.TipSet) (*FullTipSet, error)

func (*ChainStore) UnmarkBlockAsValidated added in v0.8.1 

func (cs *ChainStore) UnmarkBlockAsValidated(ctx context.Context, blkid cid.Cid) error

func (*ChainStore) WalkSnapshot added in v0.9.0 

func (cs *ChainStore) WalkSnapshot(ctx context.Context, ts *types.TipSet, inclRecentRoots abi.ChainEpoch, skipOldMsgs, skipMsgReceipts bool, cb func(cid.Cid) error) error

func (*ChainStore) Weight 

func (cs *ChainStore) Weight(ctx context.Context, ts *types.TipSet) (types.BigInt, error)

type FullTipSet 

type FullTipSet struct {
	Blocks []*types.FullBlock
	// contains filtered or unexported fields
}

FullTipSet is an expanded version of the TipSet that contains all the blocks and messages

func NewFullTipSet 

func NewFullTipSet(blks []*types.FullBlock) *FullTipSet

func (*FullTipSet) Cids 

func (fts *FullTipSet) Cids() []cid.Cid

func (*FullTipSet) TipSet 

func (fts *FullTipSet) TipSet() *types.TipSet

TipSet returns a narrower view of this FullTipSet elliding the block messages.

type HeadChangeCoalescer added in v1.1.3 

type HeadChangeCoalescer struct {
	// contains filtered or unexported fields
}

HeadChangeCoalescer is a stateful reorg notifee which coalesces incoming head changes with pending head changes to reduce state computations from head change notifications.

func NewHeadChangeCoalescer added in v1.1.3 

func NewHeadChangeCoalescer(fn ReorgNotifee, minDelay, maxDelay, mergeInterval time.Duration) *HeadChangeCoalescer

NewHeadChangeCoalescer creates a HeadChangeCoalescer.

func (*HeadChangeCoalescer) Close added in v1.1.3 

func (c *HeadChangeCoalescer) Close() error

Close closes the coalescer and cancels the background dispatch goroutine. Any further notification will result in an error.

func (*HeadChangeCoalescer) HeadChange added in v1.1.3 

func (c *HeadChangeCoalescer) HeadChange(revert, apply []*types.TipSet) error

HeadChange is the ReorgNotifee callback for the stateful coalescer; it receives an incoming head change and schedules dispatch of a coalesced head change in the background.

type HeadChangeEvt added in v0.7.1 

type HeadChangeEvt struct {
	From        types.TipSetKey
	FromHeight  abi.ChainEpoch
	To          types.TipSetKey
	ToHeight    abi.ChainEpoch
	RevertCount int
	ApplyCount  int
}

type ReorgNotifee added in v0.4.0 

type ReorgNotifee = func(rev, app []*types.TipSet) error

ReorgNotifee represents a callback that gets called upon reorgs.

func WrapHeadChangeCoalescer added in v1.1.3 

func WrapHeadChangeCoalescer(fn ReorgNotifee, minDelay, maxDelay, mergeInterval time.Duration) ReorgNotifee

WrapHeadChangeCoalescer wraps a ReorgNotifee with a head change coalescer. minDelay is the minimum coalesce delay; when a head change is first received, the coalescer will 

wait for that long to coalesce more head changes.

maxDelay is the maximum coalesce delay; the coalescer will not delay delivery of a head change 

more than that.

mergeInterval is the interval that triggers additional coalesce delay; if the last head change was 

within the merge interval when the coalesce timer fires, then the coalesce time is extended
by min delay and up to max delay total.

Source Files

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