fix: rip out wait_for because it still blocks

src/lib.rs

@@ -76,6 +76,4 @@ pub use wrappers::fetch;
 #[cfg(feature = "yield_now")]
 pub use yield_::yield_now;
 
-pub use wrappers::wait_for;
-
 pub use reqwest::Client; // Exported to make it easier to use without a second import and maintain semver

src/wrappers.rs

@@ -1,8 +1,6 @@
 //! Stores the wrapper functions that can be called from either native or wasm
 //! code
 
-use futures::Future;
-
 /// Performs a HTTP requests and calls the given callback when done. NB: Needs
 /// to use a callback to prevent blocking on the thread that initiates the
 /// fetch. Note: Instead of calling get like in the example you can use post,
@@ -63,52 +61,4 @@ where
     crate::wasm::spawn(future);
 }
 
-/// Sometimes needed in callbacks to call async code from the sync context
-/// Provides a cross platform compatible way to run an async function in a
-/// blocking fashion, but without actually blocking because then the function
-/// cannot complete and results in a deadlock.
-///
-/// # Warning
-/// Until a better solution can be found this will result in a busy loop so use
-/// sparingly.
-#[cfg(not(target_arch = "wasm32"))]
-pub fn wait_for<F>(future: F) -> F::Output
-where
-    F: Future + 'static + Send,
-    F::Output: Send,
-{
-    let (tx, rx) = futures::channel::oneshot::channel();
-    spawn(async move {
-        tx.send(future.await)
-            .unwrap_or_else(|_| eprintln!("failed to send but expected rx to still be available"));
-    });
-    wait_for_receiver(rx)
-}
-
-#[cfg(target_arch = "wasm32")]
-/// dox
-pub fn wait_for<F>(future: F) -> F::Output
-where
-    F: Future + 'static,
-{
-    let (tx, rx) = futures::channel::oneshot::channel();
-    spawn(async move {
-        tx.send(future.await)
-            .unwrap_or_else(|_| eprintln!("failed to send but expected rx to still be available"));
-    });
-    wait_for_receiver(rx)
-}
-
-fn wait_for_receiver<T>(mut rx: futures::channel::oneshot::Receiver<T>) -> T {
-    loop {
-        // TODO 4: Is there a better way to do this than a busy loop?
-        if let Some(x) = rx
-            .try_recv()
-            .expect("failed to receive. maybe sender panicked")
-        {
-            return x;
-        }
-    }
-}
-
 // TODO 3: Test link in documentation after pushing to main