CancellationTokenSource

CancellationTokenSource is a class in the .NET framework that provides a way to signal cancellation to one or more operations. It is part of the System.Threading namespace and is used in conjunction with the CancellationToken class to implement cooperative cancellation. A CancellationTokenSource can be used to create a CancellationToken, which can then be passed to operations that support cancellation. When the token source is canceled, all tokens created from it are signaled to cancel their associated operations. This allows for a centralized way to manage and propagate cancellation requests across multiple tasks or threads. The CancellationTokenSource class provides methods to cancel the token, check if it has been canceled, and register callbacks to be executed when the token is canceled. It is commonly used in asynchronous programming to handle long-running operations and provide a mechanism to gracefully terminate them when needed.