How to get the linux thread id from RWThreadId?

Question

In the RW documentation it advises to use rwThreadHash to get the threadId for debugging but that still doesn't match the actual linux thread id on a thread. Any idea how to get it (not necessarily in a portable way)?

cout << rwThreadHash(threadId()) << endl;
1477159840

Answer 1

I think you are looking for gettid()

From the pthread_self() man page notes: The thread ID returned by pthread_self() is not the same thing as the kernel thread ID returned by a call to gettid(2). What you are printing out looks like a pthread id.