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Task.WaitAll() vs. Task.WhenAll(): Blocking vs. Asynchronous Waiting?

Patricia Arquette
Patricia ArquetteOriginal
2025-01-26 08:26:09740browse

Task.WaitAll() vs. Task.WhenAll(): Blocking vs. Asynchronous Waiting?

task.waitall () and task.whenall () key differences

When dealing with asynchronous tasks, understanding the subtle but important differences between

and

is very important. Task.WaitAll() Task.WhenAll() task.waitall (): The blocking type waits

is a direct method that blocks the current thread until all specified tasks are completed. This is a synchronous operation, which means that it returns only after all tasks are completed.

task.whenall (): Wait asynchronous

Task.WaitAll()

uses different methods. It returns a object, which means waiting for all operations to complete all specified tasks. This allows the use of asynchronous execution models, where the actual waiting occurs without blocking the current thread.

Different use of usage

The key difference is that

will suspend the current thread, and Task.WhenAll() provides an asynchronous waiting mechanism. In the asynchronous method, you can continue to execute the code when the task is still running. This is a non -blocking method that can prevent thread hunger and allow more effective use of resources. Task

Code example comparison:

The following code blocks illustrate these differences:

Task.WaitAll() In the first case, Task.WhenAll() will suspend the current thread until all three tasks are completed. In the second case, will create an asynchronous task to wait for three tasks to complete. Therefore, your method can continue to be executed without obstruction because of the waiting process. Task.WhenAll()

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