What are the differences between reentrant and thread-safe functions?

Can you explain the differences between reentrant and thread-safe functions?

Sure! Reentrant functions can be interrupted and safely called again before the previous execution is complete, while thread-safe functions can be safely called by multiple threads at the same time without causing data corruption.

Can you give an example of a reentrant function?

An example of a reentrant function is the strtok_r function in C, which tokenizes a string in a thread-safe manner.

What about thread-safe functions? Any examples?

Yes! An example of a thread-safe function is pthread_mutex_lock, which ensures that only one thread can access a resource at a time.

Are all thread-safe functions reentrant?

No, not all thread-safe functions are reentrant. A function can be thread-safe but still maintain state that prevents it from being reentrant.