Adds iperf timeout for bandwith measurements.

measurement_main.py

                     self.config["server"],
                     self.config["port"],
                 )
-                is_measurement_done = False
-                return_code = 0
-                while not is_measurement_done or return_code != 0:
-                    try:
-                        try:
-                            return_code = subprocess.call(iperf_command, timeout=float(time) + 1.0 + TIMEOUT_OFFSET)
-                            is_measurement_done = True
-                        except:
-                            print_message("iPerf timed out. Retry...")
-                    except KeyboardInterrupt:
-                        exit()
+
+                subprocess.call(iperf_command)
+
                 processHandler.kill_all()
                 congestion_control_index = (congestion_control_index + 1) % len(
                     tcp_algo
                     str(self.config["port"]),
                     "--one-off",
                 ]
-                is_measurement_done = False
-                return_code = 0
-                while not is_measurement_done or return_code != 0:
-                    try:
-                        try:
-                            return_code= subprocess.call(iperf_command, timeout=float(time) + 1.0 + TIMEOUT_OFFSET)
-                            is_measurement_done = True
-                        except:
-                            print_message("iPerf timed out. Retry...")
-                    except KeyboardInterrupt:
-                        exit()
+
+                subprocess.call(iperf_command)
+
                 sleep(2)
                 processHandler.kill_all()
                 congestion_control_index = (congestion_control_index + 1) % len(
                     tcp_algo[congestion_control_index],
                 ]
                 is_measurement_done = False
-                return_code = 0
-                while not is_measurement_done or return_code != 0:
+                while not is_measurement_done:
                     try:
                         try:
-                            return_code = subprocess.call(iperf_command, timeout=float(time) + 2.0 + TIMEOUT_OFFSET)
+                            subprocess.call(iperf_command, timeout=float(time) + 2.0 + TIMEOUT_OFFSET)
                             is_measurement_done = True
                         except:
                             print_message("iPerf timed out. Retry...")
                 )
                 sleep(2)
                 is_measurement_done = False
-                return_code = 0
-                while not is_measurement_done or return_code != 0:
+                while not is_measurement_done:
                     try:
                         try:
-                            return_code = subprocess.call(iperf_command, timeout=float(time) + 2.0 + TIMEOUT_OFFSET)
+                            subprocess.call(iperf_command, timeout=float(time) + 2.0 + TIMEOUT_OFFSET)
                             is_measurement_done = True
                         except:
                             print_message("iPerf timed out. Retry...")