Crate tokio_immediate 

Primitives for calling asynchronous code from immediate mode GUIs.

The single module contains AsyncCall, which spawns a single Future onto a Tokio runtime and exposes its result through a poll-based API that fits naturally into an immediate mode update loop. An AsyncViewport ties a GUI viewport to a wake-up callback so that completed tasks automatically trigger a repaint.

With the sync feature enabled, the sync and trigger modules provide channel wrappers that wake viewports when values are sent, enabling continuous progress reporting from async tasks to the UI. The parallel module provides AsyncParallelRunner. The serial module is enabled by the sync feature and provides AsyncSerialRunner.

Feature flags

• sync — Enable viewport-aware wrappers around tokio::sync channels, a trigger notification channel and serial::AsyncSerialRunner.

Re-exports

pub use ::tokio;

Modules

parallel

Async parallel runner: schedule futures to run concurrently. Async parallel runner: execute submitted futures concurrently.

serialsync

Async serial runner: schedule futures to run one after another. Async serial runner: execute submitted futures one after another.

single

Async call: spawn one Future and track its result. Async call: spawn one Future and track its result.

syncsync

Wrappers around tokio::sync primitives that wake up viewports on send.

triggersync

A notification channel for signaling async tasks from the UI thread.

Structs

AsyncCurrentRuntime

The default AsyncRuntime for AsyncCall.

AsyncViewport

Represents a single GUI viewport (window) that can be woken up from asynchronous tasks.

AsyncWakeUpGuard

RAII guard that wakes up on drop.

AsyncWaker

A lightweight, cloneable handle that can request a repaint of the AsyncViewport it was created from.

AsyncWakerList

A thread-safe collection of AsyncWakers that can all be woken up at once.

Traits

AsyncRuntime

Abstraction over how AsyncCall accesses a Tokio runtime.

AsyncWakeUp

Common interface for types that can request a viewport wake-up.

Type Aliases

AsyncWakeUpCallback