Threads and simple Dead lock cure

Question

When dealing with threads (specifically in C++) using mutex locks and semaphores is there a simple rule of thumb to avoid Dead Locks and have nice clean Synchronization?

Answer 1

Try to avoid acquiring one lock and trying to acquire another. This can result into circular dependency and cause for deadlock. If it is un-avoidable then at least the order of acquire locks should be predictable.

Use RAII ( to make sure lock is release properly in case of exception as well)