+class VppDiedError(Exception):
+ """ exception for reporting that the subprocess has died."""
+
+ signals_by_value = {v: k for k, v in signal.__dict__.items() if
+ k.startswith('SIG') and not k.startswith('SIG_')}
+
+ def __init__(self, rv=None, testcase=None, method_name=None):
+ self.rv = rv
+ self.signal_name = None
+ self.testcase = testcase
+ self.method_name = method_name
+
+ try:
+ self.signal_name = VppDiedError.signals_by_value[-rv]
+ except (KeyError, TypeError):
+ pass
+
+ if testcase is None and method_name is None:
+ in_msg = ''
+ else:
+ in_msg = 'running %s.%s ' % (testcase, method_name)
+
+ msg = "VPP subprocess died %sunexpectedly with return code: %d%s." % (
+ in_msg,
+ self.rv,
+ ' [%s]' % (self.signal_name if
+ self.signal_name is not None else ''))
+ super(VppDiedError, self).__init__(msg)
+
+