package database
import (
- "fmt"
+ "strconv"
"github.com/golang/groupcache/singleflight"
"github.com/vapor/common"
"github.com/vapor/protocol/bc"
"github.com/vapor/protocol/bc/types"
+ "github.com/vapor/protocol/state"
)
const (
- maxCachedBlockHeaders = 1000
- maxCachedBlockTransactions = 1000
+ maxCachedBlockHeaders = 4096
+ maxCachedBlockTransactions = 1024
+ maxCachedBlockHashes = 8192
+ maxCachedMainChainHashes = 8192
+ maxCachedVoteResults = 128
)
-type fillBlockHeaderFn func(hash *bc.Hash, height uint64) (*types.BlockHeader, error)
+type fillBlockHeaderFn func(hash *bc.Hash) (*types.BlockHeader, error)
type fillBlockTransactionsFn func(hash *bc.Hash) ([]*types.Tx, error)
-
-func newBlockCache(fillBlockHeader fillBlockHeaderFn, fillBlockTxs fillBlockTransactionsFn) blockCache {
- return blockCache{
- lruBlockHeaders: common.NewCache(maxCachedBlockHeaders),
- lruBlockTxs: common.NewCache(maxCachedBlockTransactions),
+type fillBlockHashesFn func(height uint64) ([]*bc.Hash, error)
+type fillMainChainHashFn func(height uint64) (*bc.Hash, error)
+type fillVoteResultFn func(seq uint64) (*state.VoteResult, error)
+
+func newCache(fillBlockHeader fillBlockHeaderFn, fillBlockTxs fillBlockTransactionsFn, fillBlockHashes fillBlockHashesFn, fillMainChainHash fillMainChainHashFn, fillVoteResult fillVoteResultFn) cache {
+ return cache{
+ lruBlockHeaders: common.NewCache(maxCachedBlockHeaders),
+ lruBlockTxs: common.NewCache(maxCachedBlockTransactions),
+ lruBlockHashes: common.NewCache(maxCachedBlockHashes),
+ lruMainChainHashes: common.NewCache(maxCachedMainChainHashes),
+ lruVoteResults: common.NewCache(maxCachedVoteResults),
fillBlockHeaderFn: fillBlockHeader,
fillBlockTransactionFn: fillBlockTxs,
+ fillBlockHashesFn: fillBlockHashes,
+ fillMainChainHashFn: fillMainChainHash,
+ fillVoteResultFn: fillVoteResult,
}
}
-type blockCache struct {
- lruBlockHeaders *common.Cache
- lruBlockTxs *common.Cache
+type cache struct {
+ lruBlockHeaders *common.Cache
+ lruBlockTxs *common.Cache
+ lruBlockHashes *common.Cache
+ lruMainChainHashes *common.Cache
+ lruVoteResults *common.Cache
- fillBlockHeaderFn func(hash *bc.Hash, height uint64) (*types.BlockHeader, error)
+ fillBlockHeaderFn func(hash *bc.Hash) (*types.BlockHeader, error)
fillBlockTransactionFn func(hash *bc.Hash) ([]*types.Tx, error)
+ fillBlockHashesFn func(uint64) ([]*bc.Hash, error)
+ fillMainChainHashFn func(uint64) (*bc.Hash, error)
+ fillVoteResultFn func(seq uint64) (*state.VoteResult, error)
- singleBlockHeader singleflight.Group
- singleBlockTxs singleflight.Group
+ sf singleflight.Group
}
-func (c *blockCache) lookupBlockHeader(hash *bc.Hash, height uint64) (*types.BlockHeader, error) {
- if bH, ok := c.getBlockHeader(hash); ok {
- return bH, nil
+func (c *cache) lookupBlockHeader(hash *bc.Hash) (*types.BlockHeader, error) {
+ if data, ok := c.lruBlockHeaders.Get(*hash); ok {
+ return data.(*types.BlockHeader), nil
}
- blockHeader, err := c.singleBlockHeader.Do(hash.String(), func() (interface{}, error) {
- bH, err := c.fillBlockHeaderFn(hash, height)
+ blockHeader, err := c.sf.Do("BlockHeader:"+hash.String(), func() (interface{}, error) {
+ blockHeader, err := c.fillBlockHeaderFn(hash)
if err != nil {
return nil, err
}
- if bH == nil {
- return nil, fmt.Errorf("There are no blockHeader with given hash %s", hash.String())
- }
-
- c.addBlockHeader(bH)
- return bH, nil
+ c.lruBlockHeaders.Add(blockHeader.Hash(), blockHeader)
+ return blockHeader, nil
})
if err != nil {
return nil, err
return blockHeader.(*types.BlockHeader), nil
}
-func (c *blockCache) lookupBlockTxs(hash *bc.Hash) ([]*types.Tx, error) {
- if bTxs, ok := c.getBlockTransactions(hash); ok {
- return bTxs, nil
+func (c *cache) lookupBlockTxs(hash *bc.Hash) ([]*types.Tx, error) {
+ if data, ok := c.lruBlockTxs.Get(*hash); ok {
+ return data.([]*types.Tx), nil
}
- blockTransactions, err := c.singleBlockTxs.Do(hash.String(), func() (interface{}, error) {
- bTxs, err := c.fillBlockTransactionFn(hash)
+ blockTxs, err := c.sf.Do("BlockTxs:"+hash.String(), func() (interface{}, error) {
+ blockTxs, err := c.fillBlockTransactionFn(hash)
if err != nil {
return nil, err
}
- if bTxs == nil {
- return nil, fmt.Errorf("There are no block transactions with given hash %s", hash.String())
+ c.lruBlockTxs.Add(*hash, blockTxs)
+ return blockTxs, nil
+ })
+ if err != nil {
+ return nil, err
+ }
+ return blockTxs.([]*types.Tx), nil
+}
+
+func (c *cache) lookupVoteResult(seq uint64) (*state.VoteResult, error) {
+ if data, ok := c.lruVoteResults.Get(seq); ok {
+ return data.(*state.VoteResult).Fork(), nil
+ }
+
+ seqStr := strconv.FormatUint(seq, 10)
+ voteResult, err := c.sf.Do("VoteResult:"+seqStr, func() (interface{}, error) {
+ voteResult, err := c.fillVoteResultFn(seq)
+ if err != nil {
+ return nil, err
}
- c.addBlockTxs(*hash, bTxs)
- return bTxs, nil
+ c.lruVoteResults.Add(voteResult.Seq, voteResult)
+ return voteResult, nil
})
if err != nil {
return nil, err
}
- return blockTransactions.([]*types.Tx), nil
+ return voteResult.(*state.VoteResult).Fork(), nil
}
-func (c *blockCache) getBlockHeader(hash *bc.Hash) (*types.BlockHeader, bool) {
- blockHeader, ok := c.lruBlockHeaders.Get(*hash)
- if blockHeader == nil {
- return nil, ok
+func (c *cache) lookupMainChainHash(height uint64) (*bc.Hash, error) {
+ if hash, ok := c.lruMainChainHashes.Get(height); ok {
+ return hash.(*bc.Hash), nil
}
- return blockHeader.(*types.BlockHeader), ok
+
+ heightStr := strconv.FormatUint(height, 10)
+ hash, err := c.sf.Do("BlockHashByHeight:"+heightStr, func() (interface{}, error) {
+ hash, err := c.fillMainChainHashFn(height)
+ if err != nil {
+ return nil, err
+ }
+
+ c.lruMainChainHashes.Add(height, hash)
+ return hash, nil
+ })
+ if err != nil {
+ return nil, err
+ }
+ return hash.(*bc.Hash), nil
}
-func (c *blockCache) getBlockTransactions(hash *bc.Hash) ([]*types.Tx, bool) {
- txs, ok := c.lruBlockTxs.Get(*hash)
- if txs == nil {
- return nil, ok
+func (c *cache) lookupBlockHashesByHeight(height uint64) ([]*bc.Hash, error) {
+ if hashes, ok := c.lruBlockHashes.Get(height); ok {
+ return hashes.([]*bc.Hash), nil
}
- return txs.([]*types.Tx), ok
+
+ heightStr := strconv.FormatUint(height, 10)
+ hashes, err := c.sf.Do("BlockHashesByHeight:"+heightStr, func() (interface{}, error) {
+ hashes, err := c.fillBlockHashesFn(height)
+ if err != nil {
+ return nil, err
+ }
+
+ c.lruBlockHashes.Add(height, hashes)
+ return hashes, nil
+ })
+ if err != nil {
+ return nil, err
+ }
+ return hashes.([]*bc.Hash), nil
+}
+
+func (c *cache) removeBlockHeader(blockHeader *types.BlockHeader) {
+ c.lruBlockHeaders.Remove(blockHeader.Hash())
+}
+
+func (c *cache) removeBlockHashes(height uint64) {
+ c.lruBlockHashes.Remove(height)
}
-func (c *blockCache) addBlockHeader(blockHeader *types.BlockHeader) {
- c.lruBlockHeaders.Add(blockHeader.Hash(), blockHeader)
+func (c *cache) removeMainChainHash(height uint64) {
+ c.lruMainChainHashes.Remove(height)
}
-func (c *blockCache) addBlockTxs(hash bc.Hash, txs []*types.Tx) {
- c.lruBlockTxs.Add(hash, txs)
+func (c *cache) removeVoteResult(voteResult *state.VoteResult) {
+ c.lruVoteResults.Remove(voteResult.Seq)
}
OSDN Git Service
