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Probably good enough using the two thread solution, latency is low for most things, and it feels good

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This commit is contained in:
Mikayla Maki 2022-08-01 16:52:21 -07:00
parent 05cc78d929
commit 59ba9da247
1 changed files with 21 additions and 109 deletions
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130
crates/terminal/src/terminal.rs
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@ -31,20 +31,14 @@ use futures::{
use modal::deploy_modal;
use settings::{Settings, Shell};
use std::{
collections::HashMap,
fmt::Display,
path::PathBuf,
sync::Arc,
time::{Duration, Instant},
};
use std::{collections::HashMap, fmt::Display, path::PathBuf, sync::Arc, time::Duration};
use terminal_view::TerminalView;
use thiserror::Error;
use gpui::{
geometry::vector::{vec2f, Vector2F},
keymap::Keystroke,
AsyncAppContext, ClipboardItem, Entity, ModelContext, MutableAppContext, WeakModelHandle,
ClipboardItem, Entity, ModelContext, MutableAppContext,
};
use crate::mappings::{
@ -256,46 +250,6 @@ impl Display for TerminalError {
}
}
///This is a helper struct that represents a block on a
struct ThrottleGuard {
should_complete: bool,
length: Duration,
start: Instant,
}
impl ThrottleGuard {
fn new<T, F>(duration: Duration, cx: &mut ModelContext<T>, on_completion: F) -> Arc<Self>
where
T: Entity,
F: FnOnce(WeakModelHandle<T>, AsyncAppContext) -> () + 'static,
{
let selff = Arc::new(Self {
should_complete: false,
start: Instant::now(),
length: duration,
});
let moved_self = selff.clone();
cx.spawn_weak(|w, cx| async move {
cx.background().timer(duration).await;
if moved_self.should_complete {
on_completion(w, cx);
}
});
selff
}
fn activate(&mut self) {
self.should_complete = true;
}
fn is_done(&self) -> bool {
self.start.elapsed() > self.length
}
}
pub struct TerminalBuilder {
terminal: Terminal,
events_rx: UnboundedReceiver<AlacTermEvent>,
@ -406,9 +360,6 @@ impl TerminalBuilder {
cx.spawn_weak(|this, mut cx| async move {
use futures::StreamExt;
//Throttle guard
let mut guard: Option<Arc<ThrottleGuard>> = None;
self.events_rx
.for_each(|event| {
match this.upgrade(&cx) {
@ -416,45 +367,6 @@ impl TerminalBuilder {
this.update(&mut cx, |this, cx| {
//Process the event
this.process_event(&event, cx);
//Clean up the guard if it's expired
guard = match guard.take() {
Some(guard) => {
if guard.is_done() {
None
} else {
Some(guard)
}
}
None => None,
};
//Figure out whether to render or not.
if matches!(event, AlacTermEvent::Wakeup) {
if guard.is_none() {
cx.emit(Event::Wakeup);
cx.notify();
let dur = Duration::from_secs_f32(
1.0 / (Terminal::default_fps()
* (1. - this.utilization()).clamp(0.1, 1.)),
);
guard = Some(ThrottleGuard::new(dur, cx, |this, mut cx| {
match this.upgrade(&cx) {
Some(handle) => handle.update(&mut cx, |_, cx| {
cx.emit(Event::Wakeup);
cx.notify();
}),
None => {}
}
}))
} else {
let taken = guard.take().unwrap();
taken.activate();
guard = Some(taken);
}
}
});
}
None => {}
@ -465,28 +377,28 @@ impl TerminalBuilder {
})
.detach();
// //Render loop
// cx.spawn_weak(|this, mut cx| async move {
// loop {
// let utilization = match this.upgrade(&cx) {
// Some(this) => this.update(&mut cx, |this, cx| {
// cx.emit(Event::Wakeup);
// cx.notify();
// this.utilization()
// }),
// None => break,
// };
//Render loop
cx.spawn_weak(|this, mut cx| async move {
loop {
let utilization = match this.upgrade(&cx) {
Some(this) => this.update(&mut cx, |this, cx| {
cx.emit(Event::Wakeup);
cx.notify();
this.utilization()
}),
None => break,
};
// let utilization = (1. - this.utilization()).clamp(0.1, 1.);
let utilization = (1. - utilization).clamp(0.1, 1.);
// let delay = cx.background().timer(Duration::from_secs_f32(
// 1.0 / (Terminal::default_fps() * utilization),
// ));
let delay = cx.background().timer(Duration::from_secs_f32(
1.0 / (Terminal::default_fps() * utilization),
));
// delay.await;
// }
// })
// .detach();
delay.await;
}
})
.detach();
self.terminal
}