What is a fire and forget Task C#?
Often in application development you want a process to call another thread and continue the process flow, without waiting for a response from the called thread. This pattern is called the “fire and forget” pattern.
What is fire and forget method?
Fire-and-forget is a type of missile guidance which does not require further guidance after launch such as illumination of the target or wire guidance, and can hit its target without the launcher being in line-of-sight of the target.
Is async void fire and forget?
The async void case is a “fire and forget”: You start the task chain, but you don’t care about when it’s finished. When the function returns, all you know is that everything up to the first await has executed. Everything after the first await will run at some unspecified point in the future that you have no access to.
What is discard Task in C#?
Starting with C# 7.0, C# supports discards, which are placeholder variables that are intentionally unused in application code. Discards are equivalent to unassigned variables; they don’t have a value.
Why is it called fire-and-forget?
The missile has a “fire and forget” principle of operation. It means the missile guidance does not require further guidance after the launch and still hit the target without the launcher being in line-of-sight of the target. So now you know why India’s obvious enemies do not want to wage a war with the country.
Can Task return void C#?
Task return type Such methods return void if they run synchronously. If you use a Task return type for an async method, a calling method can use an await operator to suspend the caller’s completion until the called async method has finished.
What is ConfigureAwait false C#?
ConfigureAwait(false) involves a task that’s already completed by the time it’s awaited (which is actually incredibly common), then the ConfigureAwait(false) will be meaningless, as the thread continues to execute code in the method after this and still in the same context that was there previously.
Can we use task without async?
C# Language Async-Await Returning a Task without await The asynchronous call is at the end of the method. Catching/handling exception that may happen within the Task is not necessary.
When should I use Task factory StartNew?
Why Use Task. Factory. StartNew?
- You need a task that represents only the first (synchronous) part of an asynchronous method, instead of a task representing the entire method.
- You need to specify a custom TaskScheduler , instead of using the thread pool scheduler.
- You need to specify custom TaskCreationOptions .
Is somesidetasktobeforgotten () still fire and forget?
Yes, it’s still fire and forget. When SomeSideTaskToBeForgotten (); returns a Task, the remainder of your method will execute, without waiting for the Task to complete. The discard just makes explicit the fact that the Task isn’t required for any further processing.
Is configureawait required for fire-and-forget tasks?
I have a couple issues with the leading answer to this question. First, in a true fire-and-forget situation, you probably won’t await the task, so it is useless to append ConfigureAwait (false). If you do not await the value returned by ConfigureAwait, then it cannot possibly have any effect.
What SDK do I need to run fire and forget?
For more info, and a code example, see Fire and forget. Minimum supported SDK: Windows SDK version 10.0.17134.0 (Windows 10, version 1803) Header: %WindowsSdkDir%Include \\cppwinrt\\winrt\\base.h (included by default)
How to make a fire-and-forget coroutine in WinRT?
To make your coroutine a fire-and-forget one, use winrt::fire_and_forget for its return type. For more info, and a code example, see Fire and forget. Minimum supported SDK: Windows SDK version 10.0.17134.0 (Windows 10, version 1803) Header: %WindowsSdkDir%Include \\cppwinrt\\winrt\\base.h (included by default)