added RPC/IPC support

rpc/comms/ipc.go

@@ -0,0 +1,37 @@
+package comms
+
+import (
+	"github.com/ethereum/go-ethereum/rpc/api"
+	"github.com/ethereum/go-ethereum/rpc/codec"
+)
+
+type IpcConfig struct {
+	Endpoint string
+}
+
+type ipcClient struct {
+	c codec.ApiCoder
+}
+
+func (self *ipcClient) Close() {
+	self.c.Close()
+}
+
+func (self *ipcClient) Send(req interface{}) error {
+	return self.c.WriteResponse(req)
+}
+
+func (self *ipcClient) Recv() (interface{}, error) {
+	return self.c.ReadResponse()
+}
+
+// Create a new IPC client, UNIX domain socket on posix, named pipe on Windows
+func NewIpcClient(cfg IpcConfig, codec codec.Codec) (*ipcClient, error) {
+	return newIpcClient(cfg, codec)
+}
+
+// Start IPC server
+func StartIpc(cfg IpcConfig, codec codec.Codec, apis ...api.EthereumApi) error {
+	offeredApi := api.Merge(apis...)
+	return startIpc(cfg, codec, offeredApi)
+}