Implementing AutoResetEvent
Explore the implementation of AutoResetEvent in C#, mastering thread synchronization by controlling signal states and wait operations. Understand using Monitor and Semaphore to allow one waiting thread to proceed, handle spurious wakeups, and ensure thread safety in concurrent programming.
Implementing AutoResetEvent
You are asked to design a class similar to C#'s AutoResetEvent class. The AutoResetEvent synchronization primitive allows any number of threads to wait on the event object and allows a single thread to be released on being signaled. Additionally, the AutoResetEvent object can be initialized in the signaled state, in which case the first thread attempting to wait on the object doesn't block. However, the object goes back to unsignaled state after a thread has been released. If an AutoResetEvent object is signaled multiple times in the absence of any waiting threads, the object allows a single thread to proceed forward when multiple threads subsequently invoke wait() on it. In other words, multiple signals collapse into one when there are no waiting threads.
Solution
Let us first think about the state we'll need to maintain for an AutoResetEvent class object. We know that it can be in a ...