WaitAll

WaitAll is a function in the.NET Framework and its successor,.NET Core, that is used to wait for multiple tasks to complete. It is a part of the Task class and is used in conjunction with the Wait method to synchronize the completion of multiple tasks.

When a call is made to WaitAll, the function waits for all the tasks in the array to complete. If any tasks within the array have not completed, the method will wait for them to finish. Once all tasks have completed, the function will then continue executing.

The WaitAll method is typically used in scenarios where there are multiple tasks that need to be completed in sequence, and the program needs to ensure that all tasks are completed before moving on to the next process. It is a blocking call, meaning that the program will halt execution until the tasks have been completed.

There are several overloaded versions of the WaitAll method, which can take arrays of different sizes, including a maximum size of 32 tasks. When more tasks are waiting, the WaitAny method is called, which is similar in concept but will return the index of the task that completed first.

The WaitAll method can also be used with a timeout parameter, which can be used to specify a maximum amount of time to wait for the tasks to complete. If the specified time has elapsed, the function will return without waiting for the tasks to complete.

In summary, WaitAll is a function that is used to wait for multiple tasks to complete, providing a way for programs to ensure that all tasks are completed before moving on to the next process. Its versatility and ability to handle a range of situation due to its overloaded versions makes it a valuable tool in.NET programming.