1.Implementation for rtp session module; 2.Separate signal server from main project

application/signal_server/transmission_manager.h

@@ -0,0 +1,33 @@
+#ifndef _TRANSIMISSION_MANAGER_H_
+#define _TRANSIMISSION_MANAGER_H_
+
+#include <map>
+#include <set>
+#include <websocketpp/server.hpp>
+
+class TransmissionManager {
+ public:
+  TransmissionManager();
+  ~TransmissionManager();
+
+ public:
+  std::vector<std::string> GetAllUserIdOfTransmission(
+      const std::string& transmission_id);
+
+ public:
+  bool BindUserIdToTransmission(const std::string& user_id,
+                                const std::string& transmission_id);
+  bool BindUserIdToWsHandle(const std::string& user_id,
+                            websocketpp::connection_hdl hdl);
+
+  std::string ReleaseUserIdFromTransmission(websocketpp::connection_hdl hdl);
+
+  websocketpp::connection_hdl GetWsHandle(const std::string& user_id);
+  std::string GetUserId(websocketpp::connection_hdl hdl);
+
+ private:
+  std::map<std::string, std::vector<std::string>> transmission_user_id_list_;
+  std::map<std::string, websocketpp::connection_hdl> user_id_ws_hdl_list_;
+};
+
+#endif