What is exception safety in multithreading?

What is exception safety in multithreading?

Exception safety in multithreading refers to the guarantees that a program provides when exceptions occur during concurrent execution. It ensures that the program remains in a valid state and resources are managed correctly, even when errors happen.

Can you explain the different levels of exception safety?

Sure! There are three main levels of exception safety: 1) No-throw guarantee: operations will not throw exceptions. 2) Strong guarantee: if an exception is thrown, the state remains unchanged. 3) Basic guarantee: if an exception occurs, resources are released, but the state may be partially modified.

How can I implement exception safety in my multithreaded code?

To implement exception safety, you can use techniques like RAII (Resource Acquisition Is Initialization), smart pointers, and try-catch blocks to manage resources and handle exceptions gracefully.

What are some common pitfalls to avoid?

Common pitfalls include failing to release resources in case of exceptions, not using thread-safe data structures, and neglecting to handle exceptions in all threads, which can lead to resource leaks or inconsistent states.