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When to use a waitable timer in an asynchronous function?
The following example associates an asynchronous procedure call (APC) function, also known as a completion routine, with a waitable timer when the timer is set. The address of the completion routine is the fourth parameter to the SetWaitableTimer function.
How to use async and await in Stack Overflow?
For an ASP application you would call it from an appropriate place. Note that you need a way to cancel the loop, which is why I pass a CancellationToken to RepeatActionEvery (). In this sample, I use a cancellation source which automatically cancels after 8 seconds.
When to use a waitable timer with an APC?
When you are using a waitable timer with an APC, the thread that sets the timer should not wait on the handle of the timer. By doing so, you would cause the thread to wake up as a result of the timer becoming signaled rather than as the result of an entry being added to the APC queue.
When to execute an async method on a thread?
/// Provides a mechanism for executing an async method on /// a thread pool thread at specified intervals.
How does synchronization work with the Windows API?
The Windows API provides two waitable timer types: manual-reset and synchronization; and both can be periodic. A manual-reset waitable timer is signaled until the SetWaitableTimer function is called to set a new due time; while a synchronization timer is in its signaled state until a single thread is released after successfully waiting on the
What do you need to know about synchronization objects?
A synchronization object is an object whose handle can be specified in one of the wait functions to coordinate the execution of multiple threads. More than one process can have a handle to the same synchronization object, making interprocess synchronization possible. The following object types are provided exclusively for synchronization.
Is it safe to use event object for synchronization?
It is safer to use the event object because of the confusion that can occur when multiple simultaneous overlapped operations are performed on the same file, named pipe, or communications device. In this situation, there is no way to know which operation caused the object’s state to be signaled.