Merge pull request #1779 from karalabe/split-block-storage-3000

core: split the db blocks into components, move TD out top level

Author: obscuren

cmd/geth/main.go

@@ -528,17 +528,16 @@ func blockRecovery(ctx *cli.Context) {
 
 	var block *types.Block
 	if arg[0] == '#' {
-		block = core.GetBlockByNumber(blockDb, common.String2Big(arg[1:]).Uint64())
+		block = core.GetBlock(blockDb, core.GetCanonicalHash(blockDb, common.String2Big(arg[1:]).Uint64()))
 	} else {
-		block = core.GetBlockByHash(blockDb, common.HexToHash(arg))
+		block = core.GetBlock(blockDb, common.HexToHash(arg))
 	}
 
 	if block == nil {
 		glog.Fatalln("block not found. Recovery failed")
 	}
 
-	err = core.WriteHead(blockDb, block)
-	if err != nil {
+	if err = core.WriteHeadBlockHash(blockDb, block.Hash()); err != nil {
 		glog.Fatalln("block write err", err)
 	}
 	glog.Infof("Recovery succesful. New HEAD %x\n", block.Hash())

core/chain_makers.go

@@ -158,7 +158,6 @@ func GenerateChain(parent *types.Block, db common.Database, n int, gen func(int,
 	for i := 0; i < n; i++ {
 		header := makeHeader(parent, statedb)
 		block := genblock(i, header)
-		block.Td = CalcTD(block, parent)
 		blocks[i] = block
 		parent = block
 	}