How to avoid deadlocks?

Question

When using multiple threads, shared memory needs to be locked by critical sections. However, using critical sections causes potential deadlocks. How can they be avoided?

Answer 1

When I work in C++, the following works for me:

1. all public methods (excluding ctor and dtor) of a threadsafe class lock

2. private methods cannot call public methods

It's not a general deadlock avoidance method.