Is the gettimeofday function thread safe in Linux?

Question

The current time must be stored globally in order for gettimeofday to work, however I am not sure if the function modifies any global state so that concurrent execution is u

Answer 1

Yes, it is thread-safe. The only data it modifies is in the structures you pass pointers to, so an implementation that wasn't thread-safe would have to be doing something spooky.

Best of luck on your project.