What are wait handles?

The Wait handles sends signals of a thread status from one thread to another thread. There are 3 kind of wait modes:-

A)WaitOne.

B)WaitAny.

C)WaitAll.

Whenever a thread wants to release a Wait handle it can call Set method. You can use Mutex (mutually exclusive) objects to avail for the given modes. Mutex objects are synchronization objects which can only be owned by a single thread at a time. Threads request ownership of the mutex object when they need exclusive access to a resource. As only one thread can own a mutex object at any time, other threads must wait for ownership of a mutex object before using the resource. The WaitOne method results a calling thread to wait for ownership of a mutex object. If a thread terminates normally while owning a mutex object, the state of the mutex object is set to be signaled & the next waiting thread gets the ownership.