Advanced Python Programming

Deadlock in a concurrent system

With the example of the Dining Philosophers problem in mind, let us consider the formal concept of deadlock, and the relevant theories around it. Given a concurrent program with multiple threads or processes, the execution flow enters a situation of deadlock if a process (or thread) is waiting on a resource that is being held and utilized by another process, which is, in turn, waiting for another resource that is held by a different process. In other words, processes cannot proceed with their execution instructions while waiting for resources that can only be released after the execution is completed; therefore, these processes are unable to change their execution states.

Deadlock is also defined by the conditions ...