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Building on #3221 and #3213, this update concludes support for async implementations. You can now both consume and produce the four async interfaces defined by the Windows Runtime directly in Rust.
IAsyncAction
IAsyncOperation<T>
IAsyncActionWithProgress<P>
IAsyncOperationWithProgress<T, P>
As illustrated in #3221, if you happen to have a value ready to return, you can simply use the
ready
function as follows:If you need to spin up a background thread to wait for or calculate the value to return, you can use the
spawn
function as follows:While the
ready
implementations return immediately, thespawn
implementations will take the closure and pass it by value to the Windows thread pool. This is far more efficient and scalable than creating a new thread each timespawn
is called.I have also included extensive tests for both
ready
andspawn
implementations in this update.