Remove all graceful interface impl

2 files changed, 12 insertions, 34 deletions

diff --git a/plugins/rpc/doc/plugin_arch.drawio b/plugins/rpc/doc/plugin_arch.drawio
index 56207367..dec5f0b2 100644
--- a/plugins/rpc/doc/plugin_arch.drawio
+++ b/plugins/rpc/doc/plugin_arch.drawio
@@ -1 +1 @@
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\ No newline at end of file
+<mxfile host="Electron" modified="2020-10-19T17:14:19.125Z" agent="5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/13.7.9 Chrome/85.0.4183.121 Electron/10.1.3 Safari/537.36" etag="2J39x4EyFr1zaE9BXKM4" version="13.7.9" type="device"><diagram id="q2oMKs6VHyn7y0AfAXBL" name="Page-1">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</diagram></mxfile>
\ No newline at end of file
diff --git a/plugins/rpc/rpc.go b/plugins/rpc/rpc.go
index eb999b2f..c0aa14fa 100644
--- a/plugins/rpc/rpc.go
+++ b/plugins/rpc/rpc.go
@@ -11,7 +11,7 @@ import (
 
 type Plugin interface {
 	Name() string
-	RpcService() interface{}
+	RpcService() (interface{}, error)
 }
 
 // ID contains default service name.
@@ -35,12 +35,6 @@ type Service struct {
 // Init rpc service. Must return true if service is enabled.
 func (s *Service) Init(cfg config.Provider) error {
 	s.configProvider = cfg
-	s.close = make(chan struct{})
-
-	return nil
-}
-
-func (s *Service) Configure() error {
 	err := s.configProvider.UnmarshalKey(ID, &s.config)
 	if err != nil {
 		return err
@@ -51,22 +45,21 @@ func (s *Service) Configure() error {
 		s.config.InitDefaults()
 	}
 
-	server := rpc.NewServer()
-	if server == nil {
-		return errors.New("rpc server is il")
-	}
-	s.rpc = server
+	s.close = make(chan struct{})
+
 	return nil
 }
 
 // Serve serves the service.
 func (s *Service) Serve() chan error {
 	errCh := make(chan error, 1)
+	server := rpc.NewServer()
+	if server == nil {
+		errCh <- errors.New("rpc server is nil")
+		return errCh
+	}
+	s.rpc = server
 
-	//s.mu.Lock()
-	//s.serving = true
-	//s.stop = make(chan interface{})
-	//s.mu.Unlock()
 	if len(s.services) == 0 {
 		errCh <- errors.New("no services with RPC")
 		return errCh
@@ -106,30 +99,15 @@ func (s *Service) Serve() chan error {
 		}
 	}()
 
-	//
-	//s.mu.Lock()
-	//s.serving = false
-	//s.mu.Unlock()
-
 	return nil
 }
 
-func (s *Service) Close() error {
+// Stop stops the service.
+func (s *Service) Stop() error {
 	s.close <- struct{}{}
 	return nil
 }
 
-// Stop stops the service.
-func (s *Service) Stop() {
-	//s.mu.Lock()
-	//defer s.mu.Unlock()
-	//
-	//if s.serving {
-	//	close(s.stop)
-	//}
-
-}
-
 func (s *Service) Depends() []interface{} {
 	return []interface{}{
 		s.RpcService,