perf: introduce copy-on-write for event system to eliminate all memory reallocations

yazi-fm/src/input/input.rs

@@ -21,7 +21,7 @@ impl<'a> Input<'a> {
 			bail!("Highlighting is disabled");
 		}
 
-		let (theme, syntaxes) = Highlighter::init();
+		let (theme, syntaxes) = futures::executor::block_on(Highlighter::init());
 		if let Some(syntax) = syntaxes.find_syntax_by_name("Bourne Again Shell (bash)") {
 			let mut h = HighlightLines::new(syntax, theme);
 			let regions = h.highlight_line(self.cx.input.value(), syntaxes)?;

yazi-plugin/preset/plugins/font.lua

@@ -21,7 +21,7 @@ function M:preload()
 		return 1
 	end
 
-	local child, err = Command("magick"):args({
+	local status, err = Command("magick"):args({
 		"-size",
 		"800x560",
 		"-gravity",
@@ -37,15 +37,14 @@ function M:preload()
 		"+0+0",
 		TEXT,
 		"JPG:" .. tostring(cache),
-	}):spawn()
+	}):status()
 
-	if not child then
+	if status then
+		return status.success and 1 or 2
+	else
 		ya.err("Failed to start `magick`, error: " .. err)
 		return 0
 	end
-
-	local status = child:wait()
-	return status and status.success and 1 or 2
 end
 
 return M

yazi-plugin/preset/plugins/magick.lua

@@ -19,7 +19,7 @@ function M:preload()
 		return 1
 	end
 
-	local child, err = Command("magick"):args({
+	local status, err = Command("magick"):args({
 		"-density",
 		"200",
 		tostring(self.file.url),
@@ -30,15 +30,14 @@ function M:preload()
 		tostring(PREVIEW.image_quality),
 		"-auto-orient",
 		"JPG:" .. tostring(cache),
-	}):spawn()
+	}):status()
 
-	if not child then
+	if status then
+		return status.success and 1 or 2
+	else
 		ya.err("Failed to start `magick`, error: " .. err)
 		return 0
 	end
-
-	local status = child:wait()
-	return status and status.success and 1 or 2
 end
 
 function M:spot(job) require("file"):spot(job) end

yazi-plugin/preset/plugins/video.lua

@@ -49,7 +49,7 @@ function M:preload()
 	local ss = math.floor(meta.format.duration * percent / 100)
 	local qv = 31 - math.floor(PREVIEW.image_quality * 0.3)
 	-- stylua: ignore
-	local child, err = Command("ffmpeg"):args({
+	local status, err = Command("ffmpeg"):args({
 		"-v", "quiet", "-hwaccel", "auto",
 		"-skip_frame", "nokey", "-ss", ss,
 		"-an", "-sn", "-dn",
@@ -59,15 +59,14 @@ function M:preload()
 		"-vf", string.format("scale=%d:-2:flags=fast_bilinear", PREVIEW.max_width),
 		"-f", "image2",
 		"-y", tostring(cache),
-	}):spawn()
+	}):status()
 
-	if not child then
+	if status then
+		return status.success and 1 or 2
+	else
 		ya.err("Failed to start `ffmpeg`, error: " .. err)
 		return 0
 	end
-
-	local status = child:wait()
-	return status and status.success and 1 or 2
 end
 
 function M:spot(job)

yazi-plugin/src/external/highlighter.rs

@@ -1,14 +1,14 @@
-use std::{borrow::Cow, io::Cursor, mem, path::{Path, PathBuf}, sync::OnceLock};
+use std::{borrow::Cow, io::Cursor, mem, path::{Path, PathBuf}};
 
 use anyhow::{Result, anyhow};
 use ratatui::{layout::Size, text::{Line, Span, Text}};
 use syntect::{LoadingError, dumps, easy::HighlightLines, highlighting::{self, Theme, ThemeSet}, parsing::{SyntaxReference, SyntaxSet}};
-use tokio::{fs::File, io::{AsyncBufReadExt, BufReader}};
+use tokio::{fs::File, io::{AsyncBufReadExt, BufReader}, sync::OnceCell};
 use yazi_config::{PREVIEW, THEME, preview::PreviewWrap};
 use yazi_shared::{Ids, errors::PeekError, replace_to_printable};
 
 static INCR: Ids = Ids::new();
-static SYNTECT: OnceLock<(Theme, SyntaxSet)> = OnceLock::new();
+static SYNTECT: OnceCell<(Theme, SyntaxSet)> = OnceCell::const_new();
 
 pub struct Highlighter {
 	path: PathBuf,
@@ -18,19 +18,22 @@ impl Highlighter {
 	#[inline]
 	pub fn new(path: &Path) -> Self { Self { path: path.to_owned() } }
 
-	pub fn init() -> (&'static Theme, &'static SyntaxSet) {
+	pub async fn init() -> (&'static Theme, &'static SyntaxSet) {
-		let r = SYNTECT.get_or_init(|| {
+		let f = || {
-			let theme = std::fs::File::open(&THEME.manager.syntect_theme)
+			tokio::task::spawn_blocking(|| {
-				.map_err(LoadingError::Io)
+				let theme = std::fs::File::open(&THEME.manager.syntect_theme)
-				.and_then(|f| ThemeSet::load_from_reader(&mut std::io::BufReader::new(f)))
+					.map_err(LoadingError::Io)
-				.or_else(|_| ThemeSet::load_from_reader(&mut Cursor::new(yazi_prebuild::ansi_theme())));
+					.and_then(|f| ThemeSet::load_from_reader(&mut std::io::BufReader::new(f)))
+					.or_else(|_| ThemeSet::load_from_reader(&mut Cursor::new(yazi_prebuild::ansi_theme())));
 
-			let syntaxes = dumps::from_uncompressed_data(yazi_prebuild::syntaxes());
+				let syntaxes = dumps::from_uncompressed_data(yazi_prebuild::syntaxes());
 
-			(theme.unwrap(), syntaxes.unwrap())
+				(theme.unwrap(), syntaxes.unwrap())
-		});
+			})
+		};
 
-		(&r.0, &r.1)
+		let (theme, syntaxes) = SYNTECT.get_or_try_init(f).await.unwrap();
+		(theme, syntaxes)
 	}
 
 	#[inline]
@@ -100,7 +103,7 @@ impl Highlighter {
 		syntax: &'static SyntaxReference,
 	) -> Result<Text<'static>, PeekError> {
 		let ticket = INCR.current();
-		let (theme, syntaxes) = Self::init();
+		let (theme, syntaxes) = Self::init().await;
 
 		tokio::task::spawn_blocking(move || {
 			let mut h = HighlightLines::new(syntax, theme);
@@ -128,7 +131,7 @@ impl Highlighter {
 	}
 
 	async fn find_syntax(path: &Path) -> Result<&'static SyntaxReference> {
-		let (_, syntaxes) = Self::init();
+		let (_, syntaxes) = Self::init().await;
 		let name = path.file_name().map(|n| n.to_string_lossy()).unwrap_or_default();
 		if let Some(s) = syntaxes.find_syntax_by_extension(&name) {
 			return Ok(s);

yazi-proxy/src/options/plugin.rs

@@ -2,7 +2,7 @@ use anyhow::bail;
 use mlua::{Lua, Table};
 use yazi_shared::event::{Cmd, Data};
 
-pub type PluginCallback = Box<dyn FnOnce(&Lua, Table) -> mlua::Result<()> + Send>;
+pub type PluginCallback = Box<dyn FnOnce(&Lua, Table) -> mlua::Result<()> + Send + Sync>;
 
 #[derive(Default)]
 pub struct PluginOpt {

yazi-shared/src/event/cmd.rs

@@ -49,7 +49,7 @@ impl Cmd {
 	}
 
 	#[inline]
-	pub fn with_any(mut self, name: impl ToString, data: impl Any + Send) -> Self {
+	pub fn with_any(mut self, name: impl ToString, data: impl Any + Send + Sync) -> Self {
 		self.args.insert(name.to_string(), Data::Any(Box::new(data)));
 		self
 	}

yazi-shared/src/event/data.rs

@@ -18,7 +18,7 @@ pub enum Data {
 	#[serde(skip_deserializing)]
 	Url(Url),
 	#[serde(skip)]
-	Any(Box<dyn Any + Send>),
+	Any(Box<dyn Any + Send + Sync>),
 }
 
 impl Data {