# critical error occurred
raise RuntimeError('t-rex-64 startup failed')
+ @staticmethod
+ def is_trex_running(node):
+ """Check if TRex is running using pidof.
+
+ :param node: Traffic generator node.
+ :type node: dict
+ :returns: True if TRex is running otherwise False.
+ :rtype: bool
+ :raises: RuntimeError if node type is not a TG.
+ """
+ if node['type'] != NodeType.TG:
+ raise RuntimeError('Node type is not a TG')
+
+ ssh = SSH()
+ ssh.connect(node)
+ ret, _, _ = ssh.exec_command_sudo("pidof t-rex")
+ return bool(int(ret) == 0)
+
@staticmethod
def teardown_traffic_generator(node):
"""TG teardown.