Closed xujintao closed 6 years ago
1，use dynamic_cast, see https://stackoverflow.com/questions/3747066/c-cannot-convert-from-base-a-to-derived-type-b-via-virtual-base-a 2，CentOS7.3(linux 3.10) still occurs "thundering herd" problem, so it should be close, not exit(1)
1，use dynamic_cast, see https://stackoverflow.com/questions/3747066/c-cannot-convert-from-base-a-to-derived-type-b-via-virtual-base-a 2，CentOS7.3(linux 3.10) still occurs "thundering herd" problem, so it should be close, not exit(1)