7a7bff8c17
# Objective - Enable hot patching systems with subsecond - Fixes #19296 ## Solution - First commit is the naive thin layer - Second commit only check the jump table when the code is hot patched instead of on every system execution - Depends on https://github.com/DioxusLabs/dioxus/pull/4153 for a nicer API, but could be done without - Everything in second commit is feature gated, it has no impact when the feature is not enabled ## Testing - Check dependencies without the feature enabled: nothing dioxus in tree - Run the new example: text and color can be changed --------- Co-authored-by: Jan Hohenheim <jan@hohenheim.ch> Co-authored-by: JMS55 <47158642+JMS55@users.noreply.github.com>
43 lines
1.4 KiB
Rust
43 lines
1.4 KiB
Rust
//! Utilities for hotpatching code.
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extern crate alloc;
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use alloc::sync::Arc;
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use bevy_ecs::{event::EventWriter, HotPatched};
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#[cfg(not(target_family = "wasm"))]
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use dioxus_devtools::connect_subsecond;
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use dioxus_devtools::subsecond;
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pub use dioxus_devtools::subsecond::{call, HotFunction};
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use crate::{Last, Plugin};
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/// Plugin connecting to Dioxus CLI to enable hot patching.
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#[derive(Default)]
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pub struct HotPatchPlugin;
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impl Plugin for HotPatchPlugin {
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fn build(&self, app: &mut crate::App) {
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let (sender, receiver) = crossbeam_channel::bounded::<HotPatched>(1);
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// Connects to the dioxus CLI that will handle rebuilds
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// This will open a connection to the dioxus CLI to receive updated jump tables
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// Sends a `HotPatched` message through the channel when the jump table is updated
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#[cfg(not(target_family = "wasm"))]
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connect_subsecond();
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subsecond::register_handler(Arc::new(move || {
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sender.send(HotPatched).unwrap();
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}));
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// Adds a system that will read the channel for new `HotPatched`, and forward them as event to the ECS
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app.add_event::<HotPatched>().add_systems(
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Last,
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move |mut events: EventWriter<HotPatched>| {
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if receiver.try_recv().is_ok() {
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events.write_default();
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}
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},
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);
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}
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}
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