Restaged repo, allocator and runtime implemented, ioring-backed async fs/net/channel/timer primitives

lib/runtime/src/sys/linux/channel.rs

@@ -0,0 +1,10 @@
+//! Linux channel wake helpers.
+
+use crate::op::completion::{CompletionFuture, CompletionHandle, completion};
+use crate::platform::linux_x86_64::runtime::try_current_thread_handle;
+
+pub(crate) fn runtime_waiter<T: Send + 'static>() -> (CompletionFuture<T>, CompletionHandle<T>) {
+    let owner = try_current_thread_handle()
+        .expect("async channel operations must be polled on a runtime thread");
+    completion(owner)
+}