Implementing a C++ ThreadLocal

Question

Do anyone know the best way to implement ThreadLocal in C++ whereby we can set and get values passed when neccesary.

I was reading about ThreaLocal in wikipedia and it says;

C++0x introduces the thread_local keyword. Aside that, various C++ compiler implementations provide specific ways to declare thread-local variables:

Do anyone know the gcc declaration for this and perhaps its usage?

Answer 1

This is usually a part of whatever the threading library that your OS uses. In Linux, thread local storage is handled with pthread_key_create, pthread_get_specific and pthread_set_specific functions. Most threading libraries will encapsulate this though, and offer a C++ interface. In Boost, it is the thread_specific_ptr...