Added eth_logs & fixed issue with manual log filtering

* Implemented `eth_logs`
* Fixed issue with `filter.Find()` where logs were appended to an
  incorrect, non-returned slice resulting in no logs found

cmd/mist/assets/examples/coin.html

@@ -14,8 +14,9 @@
 </div>
 
 <div>
-	<span class="amount">Amount:</span>
+	<span>Address:</span>
 	<input type="text" id="address" style="width:200px">
+	<span>Amount:</span>
 	<input type="text" id="amount" style="width:200px">
 	<button onclick="transact()">Send</button>
 </div>
@@ -58,7 +59,7 @@
 		}],
 		"outputs": []
 	}, {
-		"name":"received",
+		"name":"Changed",
 		"type":"event",
 		"inputs": [
 			{"name":"from","type":"address","indexed":true},
@@ -69,18 +70,14 @@
 	var address = localStorage.getItem("address");
 	// deploy if not exist
 	if (address == null) {
-		var code = "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";
+		var code = "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";
 		address = web3.eth.transact({data: code});
         	localStorage.setItem("address", address);
 	}
-	document.querySelector("#contract_addr").innerHTML = address.toUpperCase();
+	document.querySelector("#contract_addr").innerHTML = address;
 
 	var contract = web3.eth.contract(address, desc);
-	contract.received({from: eth.coinbase}).changed(function() {
-		refresh();
-	});
-
-	eth.watch('chain').changed(function() {
+	contract.Changed({from: eth.coinbase}).changed(function() {
 		refresh();
 	});
 
@@ -93,7 +90,7 @@
 		var storage = eth.storageAt(address);
 		table.innerHTML = "";
 		for( var item in storage ) {
-			table.innerHTML += "<tr><td>"+item.toUpperCase()+"</td><td>"+web3.toDecimal(storage[item])+"</td></tr>";
+			table.innerHTML += "<tr><td>"+item+"</td><td>"+web3.toDecimal(storage[item])+"</td></tr>";
 		}
 	}
 
@@ -106,6 +103,7 @@
 		}
 
 		var value = parseInt( document.querySelector("#amount").value );
+		console.log("transact: ", to, " => ", value)
 
 		contract.send( to, value );
 	}
@@ -121,7 +119,7 @@ contract JevCoin {
         balances[msg.sender] = 1000000;
     }
  
-    event changed(address indexed from, address indexed to);
+    event Changed(address indexed from, uint indexed amount);
     function send(address to, uint value)
     {
         if( balances[msg.sender] < value ) return;
@@ -129,7 +127,8 @@ contract JevCoin {
         balances[msg.sender] -= value;
         balances[to] += value;
  
-        changed(msg.sender, to);
+        Changed(msg.sender, value);
+        Changed(to, value);
     }
  
     function balance(address who) constant returns(uint t)

cmd/utils/cmd.go

@@ -272,7 +272,7 @@ func BlockDo(ethereum *eth.Ethereum, hash []byte) error {
 	parent := ethereum.ChainManager().GetBlock(block.ParentHash())
 
 	statedb := state.New(parent.Root(), ethereum.Db())
-	_, err := ethereum.BlockProcessor().TransitionState(statedb, parent, block)
+	_, err := ethereum.BlockProcessor().TransitionState(statedb, parent, block, true)
 	if err != nil {
 		return err
 	}

core/block_processor.go

@@ -60,12 +60,12 @@ func NewBlockProcessor(db ethutil.Database, txpool *TxPool, chainManager *ChainM
 	return sm
 }
 
-func (sm *BlockProcessor) TransitionState(statedb *state.StateDB, parent, block *types.Block) (receipts types.Receipts, err error) {
+func (sm *BlockProcessor) TransitionState(statedb *state.StateDB, parent, block *types.Block, transientProcess bool) (receipts types.Receipts, err error) {
 	coinbase := statedb.GetOrNewStateObject(block.Header().Coinbase)
 	coinbase.SetGasPool(CalcGasLimit(parent, block))
 
 	// Process the transactions on to parent state
-	receipts, _, _, _, err = sm.ApplyTransactions(coinbase, statedb, block, block.Transactions(), false)
+	receipts, _, _, _, err = sm.ApplyTransactions(coinbase, statedb, block, block.Transactions(), transientProcess)
 	if err != nil {
 		return nil, err
 	}
@@ -100,10 +100,9 @@ func (self *BlockProcessor) ApplyTransaction(coinbase *state.StateObject, stated
 	// Notify all subscribers
 	if !transientProcess {
 		go self.eventMux.Post(TxPostEvent{tx})
+		go self.eventMux.Post(statedb.Logs())
 	}
 
-	go self.eventMux.Post(statedb.Logs())
-
 	return receipt, txGas, err
 }
 
@@ -179,7 +178,7 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (td *big
 		return
 	}
 
-	receipts, err := sm.TransitionState(state, parent, block)
+	receipts, err := sm.TransitionState(state, parent, block, false)
 	if err != nil {
 		return
 	}
@@ -316,13 +315,10 @@ func (sm *BlockProcessor) GetLogs(block *types.Block) (logs state.Logs, err erro
 
 	var (
 		parent = sm.bc.GetBlock(block.Header().ParentHash)
-		//state  = state.New(parent.Trie().Copy())
-		state = state.New(parent.Root(), sm.db)
+		state  = state.New(parent.Root(), sm.db)
 	)
 
-	defer state.Reset()
-
-	sm.TransitionState(state, parent, block)
+	sm.TransitionState(state, parent, block, true)
 	sm.AccumulateRewards(state, block, parent)
 
 	return state.Logs(), nil

core/filter.go

@@ -111,14 +111,14 @@ func (self *Filter) Find() state.Logs {
 		// current parameters
 		if self.bloomFilter(block) {
 			// Get the logs of the block
-			logs, err := self.eth.BlockProcessor().GetLogs(block)
+			unfiltered, err := self.eth.BlockProcessor().GetLogs(block)
 			if err != nil {
 				chainlogger.Warnln("err: filter get logs ", err)
 
 				break
 			}
 
-			logs = append(logs, self.FilterLogs(logs)...)
+			logs = append(logs, self.FilterLogs(unfiltered)...)
 		}
 
 		block = self.eth.ChainManager().GetBlock(block.ParentHash())
@@ -146,7 +146,6 @@ func (self *Filter) FilterLogs(logs state.Logs) state.Logs {
 Logs:
 	for _, log := range logs {
 		if !includes(self.address, log.Address()) {
-			//if !bytes.Equal(self.address, log.Address()) {
 			continue
 		}
 

rpc/packages.go

@@ -167,6 +167,15 @@ func (self *EthereumApi) Logs(id int, reply *interface{}) error {
 	return nil
 }
 
+func (self *EthereumApi) AllLogs(args *FilterOptions, reply *interface{}) error {
+	filter := core.NewFilter(self.xeth.Backend())
+	filter.SetOptions(toFilterOptions(args))
+
+	*reply = toLogs(filter.Find())
+
+	return nil
+}
+
 func (p *EthereumApi) GetBlock(args *GetBlockArgs, reply *interface{}) error {
 	err := args.requirements()
 	if err != nil {
@@ -509,6 +518,12 @@ func (p *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) error
 			return err
 		}
 		return p.Logs(args, reply)
+	case "eth_logs":
+		args, err := req.ToFilterArgs()
+		if err != nil {
+			return err
+		}
+		return p.AllLogs(args, reply)
 	case "eth_gasPrice":
 		*reply = defaultGasPrice
 		return nil

xeth/xeth.go

@@ -288,13 +288,11 @@ func (self *XEth) Transact(toStr, valueStr, gasStr, gasPriceStr, codeStr string)
 
 	//fmt.Printf("create tx: %x %v\n", tx.Hash()[:4], tx.Nonce())
 
-	/*
-		// Do some pre processing for our "pre" events  and hooks
-		block := self.chainManager.NewBlock(key.Address())
-		coinbase := state.GetOrNewStateObject(key.Address())
-		coinbase.SetGasPool(block.GasLimit())
-		self.blockProcessor.ApplyTransactions(coinbase, state, block, types.Transactions{tx}, true)
-	*/
+	// Do some pre processing for our "pre" events  and hooks
+	block := self.chainManager.NewBlock(key.Address())
+	coinbase := state.GetOrNewStateObject(key.Address())
+	coinbase.SetGasPool(block.GasLimit())
+	self.blockProcessor.ApplyTransactions(coinbase, state, block, types.Transactions{tx}, true)
 
 	err = self.eth.TxPool().Add(tx)
 	if err != nil {