c++ - boost::thread_specific_ptr/cleanup 与 atexit 执行顺序

Question

如果多线程应用程序被 exit(x) 或从 main 中“返回”终止——处理程序的执行顺序是什么？

1. 由 atexit 注册的处理程序
2. pthread_key_create/thread_specific_ptr 清理处理程序(所谓的析构函数)

还是相反？

谢谢。

Answer 1

来自 http://www.cplusplus.com/reference/cstdlib/atexit :

If more than one atexit function has been specified by different calls to this function, they are all executed in reverse order as a stack (i.e. the last function specified is the first to be executed at exit).