When should I use lock-based structures?

What are lock-based structures and when should I use them?

Lock-based structures are synchronization mechanisms used to control access to shared resources in concurrent programming. You should use them when multiple threads or processes need to access the same resource to prevent data corruption.

Can you give me an example of when to use a lock?

Sure! If you have a bank account object that multiple threads can access to update the balance, using a lock ensures that only one thread can modify the balance at a time, preventing inconsistencies.

Are there any downsides to using locks?

Yes, using locks can lead to issues like deadlocks, where two or more threads are waiting on each other to release locks, causing the program to hang. It's important to use them judiciously.

What are some alternatives to lock-based structures?

Alternatives include lock-free data structures, semaphores, and message passing, which can help avoid some of the pitfalls associated with locks.