Threading

The following bool property is not thread-safe. Why is this thread un-safe? Let’s say you have two threads running at the same time. One thread is reading the bool property, while the other thread is changing the value from false to true. It’s possible for the reader thread to get the stale value (false instead … Read more

When you want thread(s) to wait until they’re signaled before continuing, there are two simple options: I’ll show examples of using both of these. ManualResetEventSlim examples ManualResetEventSlim is like waving a flag at a car race. All race cars (threads) line up at the starting line and wait for the flag, and then they all … Read more

When you have multiple threads trying to do work at the same time, and you want to throttle how many of them are actually executing, you can use SemaphoreSlim. Example – a busy grocery store Grocery stores have a limited number of checkout lanes open. Let’s say the grocery store has two lanes open, and … Read more