Why does this C++ static singleton never stop?

Question

i have implemented a singleton (static version) in C++. I know all the controversy about this pattern and potential thread-safety issues, but i am curious why this exact imp

Answer 1

I've traced it down to void __cdecl _lock(int locknum) inside mlock.c. When main() ends, the main thread goes there and enters critical section EnterCriticalSection( _locktable[locknum].lock );. Then Singleton destructor gets called and the other thread tries to enter the same critical section, but can't, and so it starts waiting for main thread to leave the critical section. Main thread, in turn, waits for the other thread. So I guess it's a bug.