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core/rawdb: separate raw database access to own package (#16666)

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This commit is contained in:
Péter Szilágyi
2018-05-07 14:35:06 +03:00
committed by GitHub
parent 5463ed9996
commit 6cf0ab38bd
52 changed files with 1288 additions and 1295 deletions
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30
light/lightchain.go
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@ -27,6 +27,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
@ -142,7 +143,7 @@ func (self *LightChain) Odr() OdrBackend {
// loadLastState loads the last known chain state from the database. This method
// assumes that the chain manager mutex is held.
func (self *LightChain) loadLastState() error {
if head := core.GetHeadHeaderHash(self.chainDb); head == (common.Hash{}) {
if head := rawdb.ReadHeadHeaderHash(self.chainDb); head == (common.Hash{}) {
// Corrupt or empty database, init from scratch
self.Reset()
} else {
@ -189,12 +190,9 @@ func (bc *LightChain) ResetWithGenesisBlock(genesis *types.Block) {
defer bc.mu.Unlock()
// Prepare the genesis block and reinitialise the chain
if err := core.WriteTd(bc.chainDb, genesis.Hash(), genesis.NumberU64(), genesis.Difficulty()); err != nil {
log.Crit("Failed to write genesis block TD", "err", err)
}
if err := core.WriteBlock(bc.chainDb, genesis); err != nil {
log.Crit("Failed to write genesis block", "err", err)
}
rawdb.WriteTd(bc.chainDb, genesis.Hash(), genesis.NumberU64(), genesis.Difficulty())
rawdb.WriteBlock(bc.chainDb, genesis)
bc.genesisBlock = genesis
bc.hc.SetGenesis(bc.genesisBlock.Header())
bc.hc.SetCurrentHeader(bc.genesisBlock.Header())
@ -223,7 +221,11 @@ func (self *LightChain) GetBody(ctx context.Context, hash common.Hash) (*types.B
body := cached.(*types.Body)
return body, nil
}
body, err := GetBody(ctx, self.odr, hash, self.hc.GetBlockNumber(hash))
number := self.hc.GetBlockNumber(hash)
if number == nil {
return nil, errors.New("unknown block")
}
body, err := GetBody(ctx, self.odr, hash, *number)
if err != nil {
return nil, err
}
@ -239,7 +241,11 @@ func (self *LightChain) GetBodyRLP(ctx context.Context, hash common.Hash) (rlp.R
if cached, ok := self.bodyRLPCache.Get(hash); ok {
return cached.(rlp.RawValue), nil
}
body, err := GetBodyRLP(ctx, self.odr, hash, self.hc.GetBlockNumber(hash))
number := self.hc.GetBlockNumber(hash)
if number == nil {
return nil, errors.New("unknown block")
}
body, err := GetBodyRLP(ctx, self.odr, hash, *number)
if err != nil {
return nil, err
}
@ -274,7 +280,11 @@ func (self *LightChain) GetBlock(ctx context.Context, hash common.Hash, number u
// GetBlockByHash retrieves a block from the database or ODR service by hash,
// caching it if found.
func (self *LightChain) GetBlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
return self.GetBlock(ctx, hash, self.hc.GetBlockNumber(hash))
number := self.hc.GetBlockNumber(hash)
if number == nil {
return nil, errors.New("unknown block")
}
return self.GetBlock(ctx, hash, *number)
}
// GetBlockByNumber retrieves a block from the database or ODR service by