Introduced dylib extension format, cleared up shutdown sequence

orcx/src/main.rs

@@ -1,4 +1,5 @@
 use orchid_base::logging::Logger;
+use orchid_host::dylib::ext_dylib;
 use tokio::time::Instant;
 pub mod parse_folder;
 
@@ -9,7 +10,7 @@ use std::process::{Command, ExitCode};
 use std::rc::Rc;
 
 use async_fn_stream::try_stream;
-use camino::Utf8PathBuf;
+use camino::{Utf8Path, Utf8PathBuf};
 use clap::{Parser, Subcommand};
 use futures::future::LocalBoxFuture;
 use futures::{FutureExt, Stream, TryStreamExt, io};
@@ -100,10 +101,32 @@ fn get_all_extensions<'a>(
 	args: &'a Args,
 	ctx: &'a Ctx,
 ) -> impl Stream<Item = io::Result<Extension>> + 'a {
+	fn not_found_error(ext_path: &Utf8Path) -> io::Error {
+		io::Error::new(
+			std::io::ErrorKind::NotFound,
+			format!("None of the file candidates for {ext_path} were found"),
+		)
+	}
 	try_stream(async |mut cx| {
 		for ext_path in args.extension.iter() {
-			let exe = if cfg!(windows) { ext_path.with_extension("exe") } else { ext_path.clone() };
-			let init = ext_command(Command::new(exe.as_os_str()), ctx.clone()).await?;
+			let init = if cfg!(windows) {
+				if ext_path.with_extension("dll").exists() {
+					let dylib =
+						ext_dylib(ext_path.with_extension("dll").as_std_path(), ctx.clone()).await.unwrap();
+					eprintln!("Loaded DLL {ext_path}.dll");
+					dylib
+				} else if ext_path.with_extension("exe").exists() {
+					ext_command(Command::new(ext_path.with_extension("exe").as_os_str()), ctx.clone()).await?
+				} else {
+					return Err(not_found_error(ext_path));
+				}
+			} else if ext_path.with_extension("so").exists() {
+				ext_dylib(ext_path.with_extension("so").as_std_path(), ctx.clone()).await.unwrap()
+			} else if ext_path.exists() {
+				ext_command(Command::new(ext_path.as_os_str()), ctx.clone()).await?
+			} else {
+				return Err(not_found_error(ext_path));
+			};
 			cx.emit(Extension::new(init, ctx.clone()).await?).await;
 		}
 		Ok(cx)