Merge branch 'develop' into poc8

core/chain_manager.go

@@ -152,6 +152,16 @@ func (bc *ChainManager) Reset() {
 	bc.TD = ethutil.BigD(ethutil.Config.Db.LastKnownTD())
 }
 
+func (self *ChainManager) Export() []byte {
+	chainlogger.Infoln("exporting", self.CurrentBlock.Number, "blocks")
+
+	blocks := make(types.Blocks, int(self.CurrentBlock.Number.Int64())+1)
+	for block := self.CurrentBlock; block != nil; block = self.GetBlock(block.PrevHash) {
+		blocks[block.Number.Int64()] = block
+	}
+	return ethutil.Encode(blocks)
+}
+
 func (bc *ChainManager) insert(block *types.Block) {
 	encodedBlock := block.RlpEncode()
 	ethutil.Config.Db.Put([]byte("LastBlock"), encodedBlock)
@@ -185,7 +195,6 @@ func (self *ChainManager) GetBlockHashesFromHash(hash []byte, max uint64) (chain
 
 	// XXX Could be optimised by using a different database which only holds hashes (i.e., linked list)
 	for i := uint64(0); i < max; i++ {
-
 		chain = append(chain, block.Hash())
 
 		if block.Number.Cmp(ethutil.Big0) <= 0 {

core/chain_manager_test.go

@@ -1 +1,19 @@
 package core
+
+import (
+	"fmt"
+	"path"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/ethutil"
+)
+
+func TestChainInsertions(t *testing.T) {
+	c1, err := ethutil.ReadAllFile(path.Join("..", "_data", "chain1"))
+	if err != nil {
+		fmt.Println(err)
+		t.FailNow()
+	}
+	data1, _ := ethutil.Decode([]byte(c1), 0)
+	fmt.Println(data1)
+}

core/execution.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"math/big"
 
-	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/vm"
 )
@@ -36,38 +35,33 @@ func (self *Execution) exec(code, contextAddr []byte, caller vm.ClosureRef) (ret
 	env := self.vm.Env()
 	chainlogger.Debugf("pre state %x\n", env.State().Root())
 
+	if self.vm.Env().Depth() == vm.MaxCallDepth {
+		// Consume all gas (by not returning it) and return a depth error
+		return nil, vm.DepthError{}
+	}
+
 	from, to := env.State().GetStateObject(caller.Address()), env.State().GetOrNewStateObject(self.address)
 	// Skipping transfer is used on testing for the initial call
 	if !self.SkipTransfer {
 		err = env.Transfer(from, to, self.value)
+		if err != nil {
+			caller.ReturnGas(self.Gas, self.price)
+
+			err = fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, from.Balance)
+			return
+		}
 	}
 
 	snapshot := env.State().Copy()
 	defer func() {
-		if vm.IsDepthErr(err) || vm.IsOOGErr(err) {
+		if /*vm.IsDepthErr(err) ||*/ vm.IsOOGErr(err) {
 			env.State().Set(snapshot)
 		}
 		chainlogger.Debugf("post state %x\n", env.State().Root())
 	}()
 
-	if err != nil {
-		caller.ReturnGas(self.Gas, self.price)
-
-		err = fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, from.Balance)
-	} else {
-		self.object = to
-		// Pre-compiled contracts (address.go) 1, 2 & 3.
-		naddr := ethutil.BigD(contextAddr).Uint64()
-		if p := vm.Precompiled[naddr]; p != nil {
-			if self.Gas.Cmp(p.Gas(len(self.input))) >= 0 {
-				ret = p.Call(self.input)
-				self.vm.Printf("NATIVE_FUNC(%x) => %x", naddr, ret)
-				self.vm.Endl()
-			}
-		} else {
-			ret, err = self.vm.Run(to, caller, code, self.value, self.Gas, self.price, self.input)
-		}
-	}
+	self.object = to
+	ret, err = self.vm.Run(to, caller, code, self.value, self.Gas, self.price, self.input)
 
 	return
 }