updates to allow new gui to recreate session to continue where it left off

daemon/core/api/grpc/client.py

@@ -262,6 +262,16 @@ class CoreGrpcClient:
         """
         return self.stub.GetSessions(core_pb2.GetSessionsRequest())
 
+    def check_session(self, session_id: int) -> core_pb2.CheckSessionResponse:
+        """
+        Check if a session exists.
+
+        :param session_id: id of session to check for
+        :return: response with result if session was found
+        """
+        request = core_pb2.CheckSessionRequest(session_id=session_id)
+        return self.stub.CheckSession(request)
+
     def get_session(self, session_id: int) -> core_pb2.GetSessionResponse:
         """
         Retrieve a session.

daemon/core/api/grpc/server.py

@@ -453,6 +453,19 @@ class CoreGrpcServer(core_pb2_grpc.CoreApiServicer):
         session.metadata = dict(request.config)
         return core_pb2.SetSessionMetadataResponse(result=True)
 
+    def CheckSession(
+        self, request: core_pb2.GetSessionRequest, context: ServicerContext
+    ) -> core_pb2.CheckSessionResponse:
+        """
+        Checks if a session exists.
+
+        :param request: check session request
+        :param context: context object
+        :return: check session response
+        """
+        result = request.session_id in self.coreemu.sessions
+        return core_pb2.CheckSessionResponse(result=result)
+
     def GetSession(
         self, request: core_pb2.GetSessionRequest, context: ServicerContext
     ) -> core_pb2.GetSessionResponse: