exchange: add api and defines

pkg/api/interface.go

@@ -0,0 +1,46 @@
+package api
+
+import (
+	"net"
+
+	"github.com/singchia/geminio"
+)
+
+type Exchange interface {
+	// rpc, message and raw io to edge
+	ForwardToEdge(*Meta, geminio.End)
+	// stream to edge
+	StreamToEdge(geminio.Stream)
+	// rpc, message and raw io to service
+	ForwardToService(geminio.End)
+	// stream to service
+	StreamToService(geminio.Stream)
+}
+
+// edge related
+type Edgebound interface {
+	ListEdges() []geminio.End
+	// for management
+	GetEdgeByID(edgeID uint64) geminio.End
+	DelEdgeByID(edgeID uint64) error
+}
+
+type EdgeInformer interface {
+	EdgeOnline(edgeID uint64, meta []byte, addr net.Addr)
+	EdgeOffline(edgeID uint64, meta []byte, addr net.Addr)
+	EdgeHeartbeat(edgeID uint64, meta []byte, addr net.Addr)
+}
+
+// service related
+type Servicebound interface {
+	ListService() []geminio.End
+	// for management
+	GetService(service string) geminio.End
+	DelSerivces(service string) error
+}
+
+type ServiceInformer interface {
+	ServiceOnline(serviceID uint64, service string, addr net.Addr)
+	ServiceOffline(serviceID uint64, service string, addr net.Addr)
+	ServiceHeartbeat(serviceID uint64, service string, addr net.Addr)
+}