Check if thread is a boost thread

Question

For purposes of thread local cleanup I need to create an assertion that checks if the current thread was created via boost::thread. How can I can check if this was the case

Answer 1

Each time a boost thread ends, all the Thread Specific Data gets cleaned. TSD is a pointer, calling delete p* at destruction/reset.

Optionally, instead of delete p*, a cleanup handler can get called for each item. That handler is specified on the TLS constructor, and you can use the cleanup function to do the one time cleaning.

#include 
#include 
#include 

void cleanup(int* _ignored) {
    std::cout << "TLS cleanup" << std::endl;
}

void thread_func() {
    boost::thread_specific_ptr x(cleanup);
    x.reset((int*)1); // Force cleanup to be called on this thread

    std::cout << "Thread begin" << std::endl;
}

int main(int argc, char** argv) {
    boost::thread::thread t(thread_func);

    t.join();

    return 0;
}