Cannot initialize thread local variables 不能初始化线程局部变量
The callback handler class has two thread local variables that can store the user ID and password from the client instance.
这个回调处理器类拥有两个线程本地变量，用于存储来自客户端实例的用户ID和密码。
It includes stack frames and local variables, but unlike a true thread it is not executable.
它包含了栈帧和局部变量，但与真正的线程不同的是它无法执行。
Key things to note here are the thread local storage declarations and the instance variables used to hold the potential source of the username and password.
这里需要注意的关键内容是用于存放用户名和密码的可能来源的线程本地存储声明和实例变量。
应用推荐