From a59cd94625f589bb167be7a9c4588ff959dcfc00 Mon Sep 17 00:00:00 2001
From: Taylor Gerring <taylor.gerring@gmail.com>
Date: Thu, 19 Feb 2015 18:58:15 +0100
Subject: [PATCH] Add setMining RPC method

---
 rpc/message.go  | 15 +++++++++++++++
 rpc/packages.go | 11 +++++++++++
 xeth/xeth.go    | 11 +++++++++++
 3 files changed, 37 insertions(+)

diff --git a/rpc/message.go b/rpc/message.go
index 1935bf1e25..d02acef0e1 100644
--- a/rpc/message.go
+++ b/rpc/message.go
@@ -201,6 +201,21 @@ func (req *RpcRequest) ToGetCodeAtArgs() (*GetCodeAtArgs, error) {
 	return args, nil
 }
 
+func (req *RpcRequest) ToBoolArgs() (bool, error) {
+	if len(req.Params) < 1 {
+		return false, NewErrorResponse(ErrorArguments)
+	}
+
+	var args bool
+	err := json.Unmarshal(req.Params[0], &args)
+	if err != nil {
+		return false, NewErrorResponse(ErrorDecodeArgs)
+	}
+
+	rpclogger.DebugDetailf("%T %v", args, args)
+	return args, nil
+}
+
 func (req *RpcRequest) ToCompileArgs() (string, error) {
 	if len(req.Params) < 1 {
 		return "", NewErrorResponse(ErrorArguments)
diff --git a/rpc/packages.go b/rpc/packages.go
index c969f58ccb..d82538c929 100644
--- a/rpc/packages.go
+++ b/rpc/packages.go
@@ -267,6 +267,11 @@ func (p *EthereumApi) GetIsMining(reply *interface{}) error {
 	return nil
 }
 
+func (p *EthereumApi) SetMining(shouldmine bool, reply *interface{}) error {
+	*reply = p.xeth.SetMining(shouldmine)
+	return nil
+}
+
 func (p *EthereumApi) BlockNumber(reply *interface{}) error {
 	*reply = p.xeth.Backend().ChainManager().CurrentBlock().Number()
 	return nil
@@ -400,6 +405,12 @@ func (p *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) error
 		return p.GetIsListening(reply)
 	case "eth_mining":
 		return p.GetIsMining(reply)
+	case "eth_setMining":
+		args, err := req.ToBoolArgs()
+		if err != nil {
+			return err
+		}
+		return p.SetMining(args, reply)
 	case "eth_peerCount":
 		return p.GetPeerCount(reply)
 	case "eth_number":
diff --git a/xeth/xeth.go b/xeth/xeth.go
index f005105bb2..06915c5e03 100644
--- a/xeth/xeth.go
+++ b/xeth/xeth.go
@@ -102,6 +102,17 @@ func (self *XEth) IsMining() bool {
 	return self.miner.Mining()
 }
 
+func (self *XEth) SetMining(shouldmine bool) bool {
+	ismining := self.miner.Mining()
+	if shouldmine && !ismining {
+		self.miner.Start()
+	}
+	if ismining && !shouldmine {
+		self.miner.Stop()
+	}
+	return self.miner.Mining()
+}
+
 func (self *XEth) IsListening() bool {
 	return self.eth.IsListening()
 }