refactor: IO resource types, fix concurrent read/write and graceful close (#9118)

Fixes: 9032.

cli/dts/lib.deno.ns.d.ts

@@ -1710,9 +1710,9 @@ declare namespace Deno {
     readonly remoteAddr: Addr;
     /** The resource ID of the connection. */
     readonly rid: number;
-    /** Shuts down (`shutdown(2)`) the writing side of the TCP connection. Most
+    /** Shuts down (`shutdown(2)`) the write side of the connection. Most
      * callers should just use `close()`. */
-    closeWrite(): void;
+    closeWrite(): Promise<void>;
   }
 
   export interface ListenOptions {

cli/tests/unit/tls_test.ts

@@ -2,6 +2,7 @@
 import {
   assert,
   assertEquals,
+  assertStrictEquals,
   assertThrows,
   assertThrowsAsync,
   deferred,
@@ -182,6 +183,149 @@ unitTest(
   },
 );
 
+async function tlsPair(port: number): Promise<[Deno.Conn, Deno.Conn]> {
+  const listener = Deno.listenTls({
+    hostname: "localhost",
+    port,
+    certFile: "cli/tests/tls/localhost.crt",
+    keyFile: "cli/tests/tls/localhost.key",
+  });
+
+  const acceptPromise = listener.accept();
+  const connectPromise = Deno.connectTls({
+    hostname: "localhost",
+    port,
+    certFile: "cli/tests/tls/RootCA.pem",
+  });
+  const connections = await Promise.all([acceptPromise, connectPromise]);
+
+  listener.close();
+
+  return connections;
+}
+
+async function sendCloseWrite(conn: Deno.Conn): Promise<void> {
+  const buf = new Uint8Array(1024);
+  let n: number | null;
+
+  // Send 1.
+  n = await conn.write(new Uint8Array([1]));
+  assertStrictEquals(n, 1);
+
+  // Send EOF.
+  await conn.closeWrite();
+
+  // Receive 2.
+  n = await conn.read(buf);
+  assertStrictEquals(n, 1);
+  assertStrictEquals(buf[0], 2);
+
+  conn.close();
+}
+
+async function receiveCloseWrite(conn: Deno.Conn): Promise<void> {
+  const buf = new Uint8Array(1024);
+  let n: number | null;
+
+  // Receive 1.
+  n = await conn.read(buf);
+  assertStrictEquals(n, 1);
+  assertStrictEquals(buf[0], 1);
+
+  // Receive EOF.
+  n = await conn.read(buf);
+  assertStrictEquals(n, null);
+
+  // Send 2.
+  n = await conn.write(new Uint8Array([2]));
+  assertStrictEquals(n, 1);
+
+  conn.close();
+}
+
+async function sendAlotReceiveNothing(conn: Deno.Conn): Promise<void> {
+  // Start receive op.
+  const readBuf = new Uint8Array(1024);
+  const readPromise = conn.read(readBuf);
+
+  // Send 1 MB of data.
+  const writeBuf = new Uint8Array(1 << 20);
+  writeBuf.fill(42);
+  await conn.write(writeBuf);
+
+  // Send EOF.
+  await conn.closeWrite();
+
+  // Close the connection.
+  conn.close();
+
+  // Read op should be canceled.
+  await assertThrowsAsync(
+    async () => await readPromise,
+    Deno.errors.Interrupted,
+  );
+}
+
+async function receiveAlotSendNothing(conn: Deno.Conn): Promise<void> {
+  const readBuf = new Uint8Array(1024);
+  let n: number | null;
+
+  // Receive 1 MB of data.
+  for (let nread = 0; nread < 1 << 20; nread += n!) {
+    n = await conn.read(readBuf);
+    assertStrictEquals(typeof n, "number");
+    assert(n! > 0);
+    assertStrictEquals(readBuf[0], 42);
+  }
+
+  // Close the connection, without sending anything at all.
+  conn.close();
+}
+
+unitTest(
+  { perms: { read: true, net: true } },
+  async function tlsServerStreamHalfClose(): Promise<void> {
+    const [serverConn, clientConn] = await tlsPair(3501);
+    await Promise.all([
+      sendCloseWrite(serverConn),
+      receiveCloseWrite(clientConn),
+    ]);
+  },
+);
+
+unitTest(
+  { perms: { read: true, net: true } },
+  async function tlsClientStreamHalfClose(): Promise<void> {
+    const [serverConn, clientConn] = await tlsPair(3502);
+    await Promise.all([
+      sendCloseWrite(clientConn),
+      receiveCloseWrite(serverConn),
+    ]);
+  },
+);
+
+unitTest(
+  { perms: { read: true, net: true } },
+  async function tlsServerStreamCancelRead(): Promise<void> {
+    const [serverConn, clientConn] = await tlsPair(3503);
+    await Promise.all([
+      sendAlotReceiveNothing(serverConn),
+      receiveAlotSendNothing(clientConn),
+    ]);
+  },
+);
+
+unitTest(
+  { perms: { read: true, net: true } },
+  async function tlsClientStreamCancelRead(): Promise<void> {
+    const [serverConn, clientConn] = await tlsPair(3504);
+    await Promise.all([
+      sendAlotReceiveNothing(clientConn),
+      receiveAlotSendNothing(serverConn),
+    ]);
+  },
+);
+
 unitTest(
   { perms: { read: true, net: true } },
   async function startTls(): Promise<void> {

runtime/js/30_net.js

@@ -72,7 +72,7 @@
     }
 
     closeWrite() {
-      shutdown(this.rid);
+      return shutdown(this.rid);
     }
   }
 

runtime/ops/fs.rs

@@ -1,7 +1,6 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 // Some deserializer fields are only used on Unix and Windows build fails without it
-use super::io::std_file_resource;
+use super::io::StdFileResource;
-use super::io::StreamResource;
 use crate::fs_util::canonicalize_path;
 use crate::permissions::Permissions;
 use deno_core::error::bad_resource_id;
@@ -188,7 +187,7 @@ fn op_open_sync(
   let (path, open_options) = open_helper(state, args)?;
   let std_file = open_options.open(path)?;
   let tokio_file = tokio::fs::File::from_std(std_file);
-  let resource = StreamResource::fs_file(tokio_file);
+  let resource = StdFileResource::fs_file(tokio_file);
   let rid = state.resource_table.add(resource);
   Ok(json!(rid))
 }
@@ -202,7 +201,7 @@ async fn op_open_async(
   let tokio_file = tokio::fs::OpenOptions::from(open_options)
     .open(path)
     .await?;
-  let resource = StreamResource::fs_file(tokio_file);
+  let resource = StdFileResource::fs_file(tokio_file);
   let rid = state.borrow_mut().resource_table.add(resource);
   Ok(json!(rid))
 }
@@ -239,7 +238,7 @@ fn op_seek_sync(
   _zero_copy: &mut [ZeroCopyBuf],
 ) -> Result<Value, AnyError> {
   let (rid, seek_from) = seek_helper(args)?;
-  let pos = std_file_resource(state, rid, |r| match r {
+  let pos = StdFileResource::with(state, rid, |r| match r {
     Ok(std_file) => std_file.seek(seek_from).map_err(AnyError::from),
     Err(_) => Err(type_error(
       "cannot seek on this type of resource".to_string(),
@@ -258,7 +257,7 @@ async fn op_seek_async(
   let resource = state
     .borrow_mut()
     .resource_table
-    .get::<StreamResource>(rid)
+    .get::<StdFileResource>(rid)
     .ok_or_else(bad_resource_id)?;
 
   if resource.fs_file.is_none() {
@@ -286,7 +285,7 @@ fn op_fdatasync_sync(
 ) -> Result<Value, AnyError> {
   let args: FdatasyncArgs = serde_json::from_value(args)?;
   let rid = args.rid as u32;
-  std_file_resource(state, rid, |r| match r {
+  StdFileResource::with(state, rid, |r| match r {
     Ok(std_file) => std_file.sync_data().map_err(AnyError::from),
     Err(_) => Err(type_error("cannot sync this type of resource".to_string())),
   })?;
@@ -304,7 +303,7 @@ async fn op_fdatasync_async(
   let resource = state
     .borrow_mut()
     .resource_table
-    .get::<StreamResource>(rid)
+    .get::<StdFileResource>(rid)
     .ok_or_else(bad_resource_id)?;
 
   if resource.fs_file.is_none() {
@@ -332,7 +331,7 @@ fn op_fsync_sync(
 ) -> Result<Value, AnyError> {
   let args: FsyncArgs = serde_json::from_value(args)?;
   let rid = args.rid as u32;
-  std_file_resource(state, rid, |r| match r {
+  StdFileResource::with(state, rid, |r| match r {
     Ok(std_file) => std_file.sync_all().map_err(AnyError::from),
     Err(_) => Err(type_error("cannot sync this type of resource".to_string())),
   })?;
@@ -350,7 +349,7 @@ async fn op_fsync_async(
   let resource = state
     .borrow_mut()
     .resource_table
-    .get::<StreamResource>(rid)
+    .get::<StdFileResource>(rid)
     .ok_or_else(bad_resource_id)?;
 
   if resource.fs_file.is_none() {
@@ -379,7 +378,7 @@ fn op_fstat_sync(
   super::check_unstable(state, "Deno.fstat");
   let args: FstatArgs = serde_json::from_value(args)?;
   let rid = args.rid as u32;
-  let metadata = std_file_resource(state, rid, |r| match r {
+  let metadata = StdFileResource::with(state, rid, |r| match r {
     Ok(std_file) => std_file.metadata().map_err(AnyError::from),
     Err(_) => Err(type_error("cannot stat this type of resource".to_string())),
   })?;
@@ -399,7 +398,7 @@ async fn op_fstat_async(
   let resource = state
     .borrow_mut()
     .resource_table
-    .get::<StreamResource>(rid)
+    .get::<StdFileResource>(rid)
     .ok_or_else(bad_resource_id)?;
 
   if resource.fs_file.is_none() {
@@ -1365,7 +1364,7 @@ fn op_ftruncate_sync(
   let args: FtruncateArgs = serde_json::from_value(args)?;
   let rid = args.rid as u32;
   let len = args.len as u64;
-  std_file_resource(state, rid, |r| match r {
+  StdFileResource::with(state, rid, |r| match r {
     Ok(std_file) => std_file.set_len(len).map_err(AnyError::from),
     Err(_) => Err(type_error("cannot truncate this type of resource")),
   })?;
@@ -1385,7 +1384,7 @@ async fn op_ftruncate_async(
   let resource = state
     .borrow_mut()
     .resource_table
-    .get::<StreamResource>(rid)
+    .get::<StdFileResource>(rid)
     .ok_or_else(bad_resource_id)?;
 
   if resource.fs_file.is_none() {
@@ -1648,7 +1647,7 @@ fn op_futime_sync(
   let atime = filetime::FileTime::from_unix_time(args.atime.0, args.atime.1);
   let mtime = filetime::FileTime::from_unix_time(args.mtime.0, args.mtime.1);
 
-  std_file_resource(state, rid, |r| match r {
+  StdFileResource::with(state, rid, |r| match r {
     Ok(std_file) => {
       filetime::set_file_handle_times(std_file, Some(atime), Some(mtime))
         .map_err(AnyError::from)
@@ -1675,7 +1674,7 @@ async fn op_futime_async(
   let resource = state
     .borrow_mut()
     .resource_table
-    .get::<StreamResource>(rid)
+    .get::<StdFileResource>(rid)
     .ok_or_else(bad_resource_id)?;
 
   if resource.fs_file.is_none() {

runtime/ops/io.rs

@@ -3,11 +3,14 @@
 use super::dispatch_minimal::minimal_op;
 use super::dispatch_minimal::MinimalOp;
 use crate::metrics::metrics_op;
-use deno_core::error::bad_resource_id;
 use deno_core::error::resource_unavailable;
 use deno_core::error::type_error;
 use deno_core::error::AnyError;
+use deno_core::error::{bad_resource_id, not_supported};
 use deno_core::futures::future::FutureExt;
+use deno_core::serde_json;
+use deno_core::serde_json::json;
+use deno_core::serde_json::Value;
 use deno_core::AsyncMutFuture;
 use deno_core::AsyncRefCell;
 use deno_core::BufVec;
@@ -17,20 +20,30 @@ use deno_core::JsRuntime;
 use deno_core::OpState;
 use deno_core::RcRef;
 use deno_core::Resource;
+use deno_core::ZeroCopyBuf;
+use serde::Deserialize;
 use std::borrow::Cow;
 use std::cell::RefCell;
+use std::convert::TryInto;
+use std::io::Read;
+use std::io::Write;
 use std::rc::Rc;
+use tokio::io::split;
 use tokio::io::AsyncRead;
 use tokio::io::AsyncReadExt;
 use tokio::io::AsyncWrite;
 use tokio::io::AsyncWriteExt;
+use tokio::io::ReadHalf;
+use tokio::io::WriteHalf;
 use tokio::net::tcp;
 use tokio::net::TcpStream;
-use tokio_rustls::client::TlsStream as ClientTlsStream;
+use tokio::process;
-use tokio_rustls::server::TlsStream as ServerTlsStream;
+use tokio_rustls as tls;
 
 #[cfg(unix)]
 use std::os::unix::io::FromRawFd;
+#[cfg(unix)]
+use tokio::net::unix;
 
 #[cfg(windows)]
 use std::os::windows::io::FromRawHandle;
@@ -94,12 +107,13 @@ lazy_static! {
 pub fn init(rt: &mut JsRuntime) {
   rt.register_op("op_read", metrics_op(minimal_op(op_read)));
   rt.register_op("op_write", metrics_op(minimal_op(op_write)));
+  super::reg_json_async(rt, "op_shutdown", op_shutdown);
 }
 
 pub fn get_stdio() -> (
-  Option<StreamResource>,
+  Option<StdFileResource>,
-  Option<StreamResource>,
+  Option<StdFileResource>,
-  Option<StreamResource>,
+  Option<StdFileResource>,
 ) {
   let stdin = get_stdio_stream(&STDIN_HANDLE, "stdin");
   let stdout = get_stdio_stream(&STDOUT_HANDLE, "stdout");
@@ -111,13 +125,13 @@ pub fn get_stdio() -> (
 fn get_stdio_stream(
   handle: &Option<std::fs::File>,
   name: &str,
-) -> Option<StreamResource> {
+) -> Option<StdFileResource> {
   match handle {
     None => None,
     Some(file_handle) => match file_handle.try_clone() {
       Ok(clone) => {
         let tokio_file = tokio::fs::File::from_std(clone);
-        Some(StreamResource::stdio(tokio_file, name))
+        Some(StdFileResource::stdio(tokio_file, name))
       }
       Err(_e) => None,
     },
@@ -142,6 +156,80 @@ pub struct FileMetadata {
   pub tty: TTYMetadata,
 }
 
+#[derive(Debug)]
+pub struct WriteOnlyResource<S> {
+  stream: AsyncRefCell<S>,
+}
+
+impl<S: 'static> From<S> for WriteOnlyResource<S> {
+  fn from(stream: S) -> Self {
+    Self {
+      stream: stream.into(),
+    }
+  }
+}
+
+impl<S> WriteOnlyResource<S>
+where
+  S: AsyncWrite + Unpin + 'static,
+{
+  pub fn borrow_mut(self: &Rc<Self>) -> AsyncMutFuture<S> {
+    RcRef::map(self, |r| &r.stream).borrow_mut()
+  }
+
+  async fn write(self: &Rc<Self>, buf: &[u8]) -> Result<usize, AnyError> {
+    let mut stream = self.borrow_mut().await;
+    let nwritten = stream.write(buf).await?;
+    Ok(nwritten)
+  }
+
+  async fn shutdown(self: &Rc<Self>) -> Result<(), AnyError> {
+    let mut stream = self.borrow_mut().await;
+    stream.shutdown().await?;
+    Ok(())
+  }
+}
+
+#[derive(Debug)]
+pub struct ReadOnlyResource<S> {
+  stream: AsyncRefCell<S>,
+  cancel_handle: CancelHandle,
+}
+
+impl<S: 'static> From<S> for ReadOnlyResource<S> {
+  fn from(stream: S) -> Self {
+    Self {
+      stream: stream.into(),
+      cancel_handle: Default::default(),
+    }
+  }
+}
+
+impl<S> ReadOnlyResource<S>
+where
+  S: AsyncRead + Unpin + 'static,
+{
+  pub fn borrow_mut(self: &Rc<Self>) -> AsyncMutFuture<S> {
+    RcRef::map(self, |r| &r.stream).borrow_mut()
+  }
+
+  pub fn cancel_handle(self: &Rc<Self>) -> RcRef<CancelHandle> {
+    RcRef::map(self, |r| &r.cancel_handle)
+  }
+
+  pub fn cancel_read_ops(&self) {
+    self.cancel_handle.cancel()
+  }
+
+  async fn read(self: &Rc<Self>, buf: &mut [u8]) -> Result<usize, AnyError> {
+    let mut rd = self.borrow_mut().await;
+    let nread = rd.read(buf).try_or_cancel(self.cancel_handle()).await?;
+    Ok(nread)
+  }
+}
+
+/// A full duplex resource has a read and write ends that are completely
+/// independent, like TCP/Unix sockets and TLS streams.
 #[derive(Debug)]
 pub struct FullDuplexResource<R, W> {
   rd: AsyncRefCell<R>,
@@ -152,7 +240,11 @@ pub struct FullDuplexResource<R, W> {
   cancel_handle: CancelHandle,
 }
 
-impl<R: 'static, W: 'static> FullDuplexResource<R, W> {
+impl<R, W> FullDuplexResource<R, W>
+where
+  R: AsyncRead + Unpin + 'static,
+  W: AsyncWrite + Unpin + 'static,
+{
   pub fn new((rd, wr): (R, W)) -> Self {
     Self {
       rd: rd.into(),
@@ -180,13 +272,7 @@ impl<R: 'static, W: 'static> FullDuplexResource<R, W> {
   pub fn cancel_read_ops(&self) {
     self.cancel_handle.cancel()
   }
-}
 
-impl<R, W> FullDuplexResource<R, W>
-where
-  R: AsyncRead + Unpin + 'static,
-  W: AsyncWrite + Unpin + 'static,
-{
   async fn read(self: &Rc<Self>, buf: &mut [u8]) -> Result<usize, AnyError> {
     let mut rd = self.rd_borrow_mut().await;
     let nread = rd.read(buf).try_or_cancel(self.cancel_handle()).await?;
@@ -198,6 +284,56 @@ where
     let nwritten = wr.write(buf).await?;
     Ok(nwritten)
   }
+
+  async fn shutdown(self: &Rc<Self>) -> Result<(), AnyError> {
+    let mut wr = self.wr_borrow_mut().await;
+    wr.shutdown().await?;
+    Ok(())
+  }
+}
+
+pub type FullDuplexSplitResource<S> =
+  FullDuplexResource<ReadHalf<S>, WriteHalf<S>>;
+
+impl<S> From<S> for FullDuplexSplitResource<S>
+where
+  S: AsyncRead + AsyncWrite + 'static,
+{
+  fn from(stream: S) -> Self {
+    Self::new(split(stream))
+  }
+}
+
+pub type ChildStdinResource = WriteOnlyResource<process::ChildStdin>;
+
+impl Resource for ChildStdinResource {
+  fn name(&self) -> Cow<str> {
+    "childStdin".into()
+  }
+}
+
+pub type ChildStdoutResource = ReadOnlyResource<process::ChildStdout>;
+
+impl Resource for ChildStdoutResource {
+  fn name(&self) -> Cow<str> {
+    "childStdout".into()
+  }
+
+  fn close(self: Rc<Self>) {
+    self.cancel_read_ops();
+  }
+}
+
+pub type ChildStderrResource = ReadOnlyResource<process::ChildStderr>;
+
+impl Resource for ChildStderrResource {
+  fn name(&self) -> Cow<str> {
+    "childStderr".into()
+  }
+
+  fn close(self: Rc<Self>) {
+    self.cancel_read_ops();
+  }
 }
 
 pub type TcpStreamResource =
@@ -213,35 +349,74 @@ impl Resource for TcpStreamResource {
   }
 }
 
-#[derive(Default)]
+pub type TlsClientStreamResource =
-pub struct StreamResource {
+  FullDuplexSplitResource<tls::client::TlsStream<TcpStream>>;
+
+impl Resource for TlsClientStreamResource {
+  fn name(&self) -> Cow<str> {
+    "tlsClientStream".into()
+  }
+
+  fn close(self: Rc<Self>) {
+    self.cancel_read_ops();
+  }
+}
+
+pub type TlsServerStreamResource =
+  FullDuplexSplitResource<tls::server::TlsStream<TcpStream>>;
+
+impl Resource for TlsServerStreamResource {
+  fn name(&self) -> Cow<str> {
+    "tlsServerStream".into()
+  }
+
+  fn close(self: Rc<Self>) {
+    self.cancel_read_ops();
+  }
+}
+
+#[cfg(unix)]
+pub type UnixStreamResource =
+  FullDuplexResource<unix::OwnedReadHalf, unix::OwnedWriteHalf>;
+
+#[cfg(not(unix))]
+struct UnixStreamResource;
+
+#[cfg(not(unix))]
+impl UnixStreamResource {
+  async fn read(self: &Rc<Self>, _buf: &mut [u8]) -> Result<usize, AnyError> {
+    unreachable!()
+  }
+  async fn write(self: &Rc<Self>, _buf: &[u8]) -> Result<usize, AnyError> {
+    unreachable!()
+  }
+  async fn shutdown(self: &Rc<Self>) -> Result<(), AnyError> {
+    unreachable!()
+  }
+  fn cancel_read_ops(&self) {
+    unreachable!()
+  }
+}
+
+impl Resource for UnixStreamResource {
+  fn name(&self) -> Cow<str> {
+    "unixStream".into()
+  }
+
+  fn close(self: Rc<Self>) {
+    self.cancel_read_ops();
+  }
+}
+
+#[derive(Debug, Default)]
+pub struct StdFileResource {
   pub fs_file:
     Option<AsyncRefCell<(Option<tokio::fs::File>, Option<FileMetadata>)>>,
-
-  #[cfg(unix)]
-  pub unix_stream: Option<AsyncRefCell<tokio::net::UnixStream>>,
-
-  child_stdin: Option<AsyncRefCell<tokio::process::ChildStdin>>,
-
-  child_stdout: Option<AsyncRefCell<tokio::process::ChildStdout>>,
-
-  child_stderr: Option<AsyncRefCell<tokio::process::ChildStderr>>,
-
-  client_tls_stream: Option<AsyncRefCell<ClientTlsStream<TcpStream>>>,
-
-  server_tls_stream: Option<AsyncRefCell<ServerTlsStream<TcpStream>>>,
-
   cancel: CancelHandle,
   name: String,
 }
 
-impl std::fmt::Debug for StreamResource {
+impl StdFileResource {
-  fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-    write!(f, "StreamResource")
-  }
-}
-
-impl StreamResource {
   pub fn stdio(fs_file: tokio::fs::File, name: &str) -> Self {
     Self {
       fs_file: Some(AsyncRefCell::new((
@@ -264,314 +439,43 @@ impl StreamResource {
     }
   }
 
-  #[cfg(unix)]
+  async fn read(self: &Rc<Self>, buf: &mut [u8]) -> Result<usize, AnyError> {
-  pub fn unix_stream(unix_stream: tokio::net::UnixStream) -> Self {
-    Self {
-      unix_stream: Some(AsyncRefCell::new(unix_stream)),
-      name: "unixStream".to_string(),
-      ..Default::default()
-    }
-  }
-
-  pub fn child_stdout(child: tokio::process::ChildStdout) -> Self {
-    Self {
-      child_stdout: Some(AsyncRefCell::new(child)),
-      name: "childStdout".to_string(),
-      ..Default::default()
-    }
-  }
-
-  pub fn child_stderr(child: tokio::process::ChildStderr) -> Self {
-    Self {
-      child_stderr: Some(AsyncRefCell::new(child)),
-      name: "childStderr".to_string(),
-      ..Default::default()
-    }
-  }
-
-  pub fn child_stdin(child: tokio::process::ChildStdin) -> Self {
-    Self {
-      child_stdin: Some(AsyncRefCell::new(child)),
-      name: "childStdin".to_string(),
-      ..Default::default()
-    }
-  }
-
-  pub fn client_tls_stream(stream: ClientTlsStream<TcpStream>) -> Self {
-    Self {
-      client_tls_stream: Some(AsyncRefCell::new(stream)),
-      name: "clientTlsStream".to_string(),
-      ..Default::default()
-    }
-  }
-
-  pub fn server_tls_stream(stream: ServerTlsStream<TcpStream>) -> Self {
-    Self {
-      server_tls_stream: Some(AsyncRefCell::new(stream)),
-      name: "serverTlsStream".to_string(),
-      ..Default::default()
-    }
-  }
-
-  async fn read(self: Rc<Self>, buf: &mut [u8]) -> Result<usize, AnyError> {
-    // TODO(bartlomieju): in the future, it would be better for `StreamResource`
-    // to be an enum instead a struct with many `Option` fields, however I
-    // wasn't able to get it to work with `AsyncRefCell`s.
     if self.fs_file.is_some() {
-      debug_assert!(self.child_stdin.is_none());
+      let mut fs_file = RcRef::map(&*self, |r| r.fs_file.as_ref().unwrap())
-      debug_assert!(self.child_stdout.is_none());
-      debug_assert!(self.child_stderr.is_none());
-      debug_assert!(self.server_tls_stream.is_none());
-      debug_assert!(self.client_tls_stream.is_none());
-      let mut fs_file = RcRef::map(&self, |r| r.fs_file.as_ref().unwrap())
         .borrow_mut()
         .await;
-      let nwritten = (*fs_file).0.as_mut().unwrap().read(buf).await?;
+      let nwritten = fs_file.0.as_mut().unwrap().read(buf).await?;
       return Ok(nwritten);
-    } else if self.child_stdout.is_some() {
+    } else {
-      debug_assert!(self.child_stdin.is_none());
+      Err(resource_unavailable())
-      debug_assert!(self.child_stderr.is_none());
+    }
-      debug_assert!(self.server_tls_stream.is_none());
-      debug_assert!(self.client_tls_stream.is_none());
-      let mut child_stdout =
-        RcRef::map(&self, |r| r.child_stdout.as_ref().unwrap())
-          .borrow_mut()
-          .await;
-      let cancel = RcRef::map(self, |r| &r.cancel);
-      let nread = child_stdout.read(buf).try_or_cancel(cancel).await?;
-      return Ok(nread);
-    } else if self.child_stderr.is_some() {
-      debug_assert!(self.child_stdin.is_none());
-      debug_assert!(self.server_tls_stream.is_none());
-      debug_assert!(self.client_tls_stream.is_none());
-      let mut child_stderr =
-        RcRef::map(&self, |r| r.child_stderr.as_ref().unwrap())
-          .borrow_mut()
-          .await;
-      let cancel = RcRef::map(self, |r| &r.cancel);
-      let nread = child_stderr.read(buf).try_or_cancel(cancel).await?;
-      return Ok(nread);
-    } else if self.client_tls_stream.is_some() {
-      debug_assert!(self.server_tls_stream.is_none());
-      let mut client_tls_stream =
-        RcRef::map(&self, |r| r.client_tls_stream.as_ref().unwrap())
-          .borrow_mut()
-          .await;
-      let cancel = RcRef::map(self, |r| &r.cancel);
-      let nread = client_tls_stream.read(buf).try_or_cancel(cancel).await?;
-      return Ok(nread);
-    } else if self.server_tls_stream.is_some() {
-      let mut server_tls_stream =
-        RcRef::map(&self, |r| r.server_tls_stream.as_ref().unwrap())
-          .borrow_mut()
-          .await;
-      let cancel = RcRef::map(self, |r| &r.cancel);
-      let nread = server_tls_stream.read(buf).try_or_cancel(cancel).await?;
-      return Ok(nread);
   }
 
-    #[cfg(unix)]
+  async fn write(self: &Rc<Self>, buf: &[u8]) -> Result<usize, AnyError> {
-    if self.unix_stream.is_some() {
-      let mut unix_stream =
-        RcRef::map(&self, |r| r.unix_stream.as_ref().unwrap())
-          .borrow_mut()
-          .await;
-      let cancel = RcRef::map(self, |r| &r.cancel);
-      let nread = unix_stream.read(buf).try_or_cancel(cancel).await?;
-      return Ok(nread);
-    }
-
-    Err(bad_resource_id())
-  }
-
-  async fn write(self: Rc<Self>, buf: &[u8]) -> Result<usize, AnyError> {
-    // TODO(bartlomieju): in the future, it would be better for `StreamResource`
-    // to be an enum instead a struct with many `Option` fields, however I
-    // wasn't able to get it to work with `AsyncRefCell`s.
     if self.fs_file.is_some() {
-      debug_assert!(self.child_stdin.is_none());
+      let mut fs_file = RcRef::map(&*self, |r| r.fs_file.as_ref().unwrap())
-      debug_assert!(self.child_stdout.is_none());
-      debug_assert!(self.child_stderr.is_none());
-      debug_assert!(self.server_tls_stream.is_none());
-      debug_assert!(self.client_tls_stream.is_none());
-      let mut fs_file = RcRef::map(&self, |r| r.fs_file.as_ref().unwrap())
         .borrow_mut()
         .await;
-      let nwritten = (*fs_file).0.as_mut().unwrap().write(buf).await?;
+      let nwritten = fs_file.0.as_mut().unwrap().write(buf).await?;
-      (*fs_file).0.as_mut().unwrap().flush().await?;
+      fs_file.0.as_mut().unwrap().flush().await?;
       return Ok(nwritten);
-    } else if self.child_stdin.is_some() {
-      debug_assert!(self.child_stdout.is_none());
-      debug_assert!(self.child_stderr.is_none());
-      debug_assert!(self.server_tls_stream.is_none());
-      debug_assert!(self.client_tls_stream.is_none());
-      let mut child_stdin =
-        RcRef::map(&self, |r| r.child_stdin.as_ref().unwrap())
-          .borrow_mut()
-          .await;
-      let nwritten = child_stdin.write(buf).await?;
-      child_stdin.flush().await?;
-      return Ok(nwritten);
-    } else if self.client_tls_stream.is_some() {
-      debug_assert!(self.server_tls_stream.is_none());
-      let mut client_tls_stream =
-        RcRef::map(&self, |r| r.client_tls_stream.as_ref().unwrap())
-          .borrow_mut()
-          .await;
-      let nwritten = client_tls_stream.write(buf).await?;
-      client_tls_stream.flush().await?;
-      return Ok(nwritten);
-    } else if self.server_tls_stream.is_some() {
-      let mut server_tls_stream =
-        RcRef::map(&self, |r| r.server_tls_stream.as_ref().unwrap())
-          .borrow_mut()
-          .await;
-      let nwritten = server_tls_stream.write(buf).await?;
-      server_tls_stream.flush().await?;
-      return Ok(nwritten);
-    }
-
-    #[cfg(unix)]
-    if self.unix_stream.is_some() {
-      let mut unix_stream =
-        RcRef::map(&self, |r| r.unix_stream.as_ref().unwrap())
-          .borrow_mut()
-          .await;
-      let nwritten = unix_stream.write(buf).await?;
-      unix_stream.flush().await?;
-      return Ok(nwritten);
-    }
-
-    Err(bad_resource_id())
-  }
-}
-
-impl Resource for StreamResource {
-  fn name(&self) -> Cow<str> {
-    self.name.clone().into()
-  }
-
-  fn close(self: Rc<Self>) {
-    self.cancel.cancel()
-  }
-}
-
-pub fn op_read(
-  state: Rc<RefCell<OpState>>,
-  is_sync: bool,
-  rid: i32,
-  mut zero_copy: BufVec,
-) -> MinimalOp {
-  debug!("read rid={}", rid);
-  match zero_copy.len() {
-    0 => return MinimalOp::Sync(Err(no_buffer_specified())),
-    1 => {}
-    _ => panic!("Invalid number of arguments"),
-  }
-
-  if is_sync {
-    MinimalOp::Sync({
-      // First we look up the rid in the resource table.
-      std_file_resource(&mut state.borrow_mut(), rid as u32, move |r| match r {
-        Ok(std_file) => {
-          use std::io::Read;
-          std_file
-            .read(&mut zero_copy[0])
-            .map(|n: usize| n as i32)
-            .map_err(AnyError::from)
-        }
-        Err(_) => Err(type_error("sync read not allowed on this resource")),
-      })
-    })
     } else {
-    let mut zero_copy = zero_copy[0].clone();
+      Err(resource_unavailable())
-    MinimalOp::Async({
-      async move {
-        let resource = state
-          .borrow()
-          .resource_table
-          .get_any(rid as u32)
-          .ok_or_else(bad_resource_id)?;
-        let nread = if let Some(stream) =
-          resource.downcast_rc::<TcpStreamResource>()
-        {
-          stream.read(&mut zero_copy).await?
-        } else if let Some(stream) = resource.downcast_rc::<StreamResource>() {
-          stream.clone().read(&mut zero_copy).await?
-        } else {
-          return Err(bad_resource_id());
-        };
-        Ok(nread as i32)
     }
-      .boxed_local()
-    })
-  }
-}
-
-pub fn op_write(
-  state: Rc<RefCell<OpState>>,
-  is_sync: bool,
-  rid: i32,
-  zero_copy: BufVec,
-) -> MinimalOp {
-  debug!("write rid={}", rid);
-  match zero_copy.len() {
-    0 => return MinimalOp::Sync(Err(no_buffer_specified())),
-    1 => {}
-    _ => panic!("Invalid number of arguments"),
   }
 
-  if is_sync {
+  pub fn with<F, R>(
-    MinimalOp::Sync({
-      // First we look up the rid in the resource table.
-      std_file_resource(&mut state.borrow_mut(), rid as u32, move |r| match r {
-        Ok(std_file) => {
-          use std::io::Write;
-          std_file
-            .write(&zero_copy[0])
-            .map(|nwritten: usize| nwritten as i32)
-            .map_err(AnyError::from)
-        }
-        Err(_) => Err(type_error("sync read not allowed on this resource")),
-      })
-    })
-  } else {
-    let zero_copy = zero_copy[0].clone();
-    MinimalOp::Async({
-      async move {
-        let resource = state
-          .borrow()
-          .resource_table
-          .get_any(rid as u32)
-          .ok_or_else(bad_resource_id)?;
-        let nwritten = if let Some(stream) =
-          resource.downcast_rc::<TcpStreamResource>()
-        {
-          stream.write(&zero_copy).await?
-        } else if let Some(stream) = resource.downcast_rc::<StreamResource>() {
-          stream.clone().write(&zero_copy).await?
-        } else {
-          return Err(bad_resource_id());
-        };
-        Ok(nwritten as i32)
-      }
-      .boxed_local()
-    })
-  }
-}
-
-pub fn std_file_resource<F, T>(
     state: &mut OpState,
     rid: u32,
     mut f: F,
-) -> Result<T, AnyError>
+  ) -> Result<R, AnyError>
-where
+  where
-  F: FnMut(Result<&mut std::fs::File, ()>) -> Result<T, AnyError>,
+    F: FnMut(Result<&mut std::fs::File, ()>) -> Result<R, AnyError>,
-{
+  {
     // First we look up the rid in the resource table.
     let resource = state
       .resource_table
-    .get::<StreamResource>(rid)
+      .get::<StdFileResource>(rid)
       .ok_or_else(bad_resource_id)?;
 
     // Sync write only works for FsFile. It doesn't make sense to do this
@@ -583,7 +487,6 @@ where
     // The object in the resource table is a tokio::fs::File - but in
     // order to do a blocking write on it, we must turn it into a
     // std::fs::File. Hopefully this code compiles down to nothing.
-
     let fs_file_resource =
       RcRef::map(&resource, |r| r.fs_file.as_ref().unwrap()).try_borrow_mut();
 
@@ -609,4 +512,181 @@ where
     } else {
       Err(resource_unavailable())
     }
+  }
+}
+
+impl Resource for StdFileResource {
+  fn name(&self) -> Cow<str> {
+    self.name.as_str().into()
+  }
+
+  fn close(self: Rc<Self>) {
+    // TODO: do not cancel file I/O when file is writable.
+    self.cancel.cancel()
+  }
+}
+
+pub fn op_read(
+  state: Rc<RefCell<OpState>>,
+  is_sync: bool,
+  rid: i32,
+  bufs: BufVec,
+) -> MinimalOp {
+  match bufs.len() {
+    0 => return MinimalOp::Sync(Err(no_buffer_specified())),
+    1 => {}
+    _ => panic!("Invalid number of arguments"),
+  };
+  let buf = bufs.into_iter().next().unwrap();
+
+  if is_sync {
+    MinimalOp::Sync(op_read_sync(state, rid, buf))
+  } else {
+    MinimalOp::Async(op_read_async(state, rid, buf).boxed_local())
+  }
+}
+
+fn op_read_sync(
+  state: Rc<RefCell<OpState>>,
+  rid: i32,
+  mut buf: ZeroCopyBuf,
+) -> Result<i32, AnyError> {
+  let rid = rid.try_into().map_err(|_| bad_resource_id())?;
+  StdFileResource::with(&mut state.borrow_mut(), rid, move |r| match r {
+    Ok(std_file) => std_file
+      .read(&mut buf)
+      .map(|n: usize| n as i32)
+      .map_err(AnyError::from),
+    Err(_) => Err(not_supported()),
+  })
+}
+
+async fn op_read_async(
+  state: Rc<RefCell<OpState>>,
+  rid: i32,
+  mut buf: ZeroCopyBuf,
+) -> Result<i32, AnyError> {
+  let rid = rid.try_into().map_err(|_| bad_resource_id())?;
+  let resource = state
+    .borrow()
+    .resource_table
+    .get_any(rid)
+    .ok_or_else(bad_resource_id)?;
+  let nread = if let Some(s) = resource.downcast_rc::<ChildStdoutResource>() {
+    s.read(&mut buf).await?
+  } else if let Some(s) = resource.downcast_rc::<ChildStderrResource>() {
+    s.read(&mut buf).await?
+  } else if let Some(s) = resource.downcast_rc::<TcpStreamResource>() {
+    s.read(&mut buf).await?
+  } else if let Some(s) = resource.downcast_rc::<TlsClientStreamResource>() {
+    s.read(&mut buf).await?
+  } else if let Some(s) = resource.downcast_rc::<TlsServerStreamResource>() {
+    s.read(&mut buf).await?
+  } else if let Some(s) = resource.downcast_rc::<UnixStreamResource>() {
+    s.read(&mut buf).await?
+  } else if let Some(s) = resource.downcast_rc::<StdFileResource>() {
+    s.read(&mut buf).await?
+  } else {
+    return Err(not_supported());
+  };
+  Ok(nread as i32)
+}
+
+pub fn op_write(
+  state: Rc<RefCell<OpState>>,
+  is_sync: bool,
+  rid: i32,
+  bufs: BufVec,
+) -> MinimalOp {
+  match bufs.len() {
+    0 => return MinimalOp::Sync(Err(no_buffer_specified())),
+    1 => {}
+    _ => panic!("Invalid number of arguments"),
+  };
+  let buf = bufs.into_iter().next().unwrap();
+
+  if is_sync {
+    MinimalOp::Sync(op_write_sync(state, rid, buf))
+  } else {
+    MinimalOp::Async(op_write_async(state, rid, buf).boxed_local())
+  }
+}
+
+fn op_write_sync(
+  state: Rc<RefCell<OpState>>,
+  rid: i32,
+  buf: ZeroCopyBuf,
+) -> Result<i32, AnyError> {
+  let rid = rid.try_into().map_err(|_| bad_resource_id())?;
+  StdFileResource::with(&mut state.borrow_mut(), rid, move |r| match r {
+    Ok(std_file) => std_file
+      .write(&buf)
+      .map(|nwritten: usize| nwritten as i32)
+      .map_err(AnyError::from),
+    Err(_) => Err(not_supported()),
+  })
+}
+
+async fn op_write_async(
+  state: Rc<RefCell<OpState>>,
+  rid: i32,
+  buf: ZeroCopyBuf,
+) -> Result<i32, AnyError> {
+  let rid = rid.try_into().map_err(|_| bad_resource_id())?;
+  let resource = state
+    .borrow()
+    .resource_table
+    .get_any(rid)
+    .ok_or_else(bad_resource_id)?;
+  let nwritten = if let Some(s) = resource.downcast_rc::<ChildStdinResource>() {
+    s.write(&buf).await?
+  } else if let Some(s) = resource.downcast_rc::<TcpStreamResource>() {
+    s.write(&buf).await?
+  } else if let Some(s) = resource.downcast_rc::<TlsClientStreamResource>() {
+    s.write(&buf).await?
+  } else if let Some(s) = resource.downcast_rc::<TlsServerStreamResource>() {
+    s.write(&buf).await?
+  } else if let Some(s) = resource.downcast_rc::<UnixStreamResource>() {
+    s.write(&buf).await?
+  } else if let Some(s) = resource.downcast_rc::<StdFileResource>() {
+    s.write(&buf).await?
+  } else {
+    return Err(not_supported());
+  };
+  Ok(nwritten as i32)
+}
+
+#[derive(Deserialize)]
+struct ShutdownArgs {
+  rid: i32,
+}
+
+async fn op_shutdown(
+  state: Rc<RefCell<OpState>>,
+  args: Value,
+  _zero_copy: BufVec,
+) -> Result<Value, AnyError> {
+  let rid = serde_json::from_value::<ShutdownArgs>(args)?
+    .rid
+    .try_into()
+    .map_err(|_| bad_resource_id())?;
+  let resource = state
+    .borrow()
+    .resource_table
+    .get_any(rid)
+    .ok_or_else(bad_resource_id)?;
+  if let Some(s) = resource.downcast_rc::<ChildStdinResource>() {
+    s.shutdown().await?;
+  } else if let Some(s) = resource.downcast_rc::<TcpStreamResource>() {
+    s.shutdown().await?;
+  } else if let Some(s) = resource.downcast_rc::<TlsClientStreamResource>() {
+    s.shutdown().await?;
+  } else if let Some(s) = resource.downcast_rc::<TlsServerStreamResource>() {
+    s.shutdown().await?;
+  } else if let Some(s) = resource.downcast_rc::<UnixStreamResource>() {
+    s.shutdown().await?;
+  } else {
+    return Err(not_supported());
+  }
+  Ok(json!({}))
 }

runtime/ops/net.rs

@@ -5,7 +5,6 @@ use crate::permissions::Permissions;
 use crate::resolve_addr::resolve_addr;
 use crate::resolve_addr::resolve_addr_sync;
 use deno_core::error::bad_resource;
-use deno_core::error::bad_resource_id;
 use deno_core::error::custom_error;
 use deno_core::error::generic_error;
 use deno_core::error::type_error;
@@ -27,7 +26,6 @@ use std::borrow::Cow;
 use std::cell::RefCell;
 use std::net::SocketAddr;
 use std::rc::Rc;
-use tokio::io::AsyncWriteExt;
 use tokio::net::TcpListener;
 use tokio::net::TcpStream;
 use tokio::net::UdpSocket;
@@ -42,14 +40,13 @@ use trust_dns_resolver::AsyncResolver;
 #[cfg(unix)]
 use super::net_unix;
 #[cfg(unix)]
-use crate::ops::io::StreamResource;
+use crate::ops::io::UnixStreamResource;
 #[cfg(unix)]
 use std::path::Path;
 
 pub fn init(rt: &mut deno_core::JsRuntime) {
   super::reg_json_async(rt, "op_accept", op_accept);
   super::reg_json_async(rt, "op_connect", op_connect);
-  super::reg_json_async(rt, "op_shutdown", op_shutdown);
   super::reg_json_sync(rt, "op_listen", op_listen);
   super::reg_json_async(rt, "op_datagram_receive", op_datagram_receive);
   super::reg_json_async(rt, "op_datagram_send", op_datagram_send);
@@ -318,7 +315,7 @@ async fn op_connect(
       let remote_addr = unix_stream.peer_addr()?;
 
       let mut state_ = state.borrow_mut();
-      let resource = StreamResource::unix_stream(unix_stream);
+      let resource = UnixStreamResource::new(unix_stream.into_split());
       let rid = state_.resource_table.add(resource);
       Ok(json!({
         "rid": rid,
@@ -336,44 +333,6 @@ async fn op_connect(
   }
 }
 
-#[derive(Deserialize)]
-struct ShutdownArgs {
-  rid: i32,
-}
-
-async fn op_shutdown(
-  state: Rc<RefCell<OpState>>,
-  args: Value,
-  _zero_copy: BufVec,
-) -> Result<Value, AnyError> {
-  let args: ShutdownArgs = serde_json::from_value(args)?;
-  let rid = args.rid as u32;
-
-  let resource = state
-    .borrow()
-    .resource_table
-    .get_any(rid)
-    .ok_or_else(bad_resource_id)?;
-  if let Some(stream) = resource.downcast_rc::<TcpStreamResource>() {
-    let mut wr = stream.wr_borrow_mut().await;
-    wr.shutdown().await?;
-    return Ok(json!({}));
-  }
-
-  #[cfg(unix)]
-  if let Some(stream) = resource.downcast_rc::<StreamResource>() {
-    if stream.unix_stream.is_some() {
-      let mut wr = RcRef::map(stream, |r| r.unix_stream.as_ref().unwrap())
-        .borrow_mut()
-        .await;
-      wr.shutdown().await?;
-      return Ok(json!({}));
-    }
-  }
-
-  Err(bad_resource_id())
-}
-
 struct TcpListenerResource {
   listener: AsyncRefCell<TcpListener>,
   cancel: CancelHandle,

runtime/ops/net_unix.rs

@@ -1,6 +1,6 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 
-use crate::ops::io::StreamResource;
+use crate::ops::io::UnixStreamResource;
 use crate::ops::net::AcceptArgs;
 use crate::ops::net::ReceiveArgs;
 use deno_core::error::bad_resource;
@@ -81,7 +81,7 @@ pub(crate) async fn accept_unix(
 
   let local_addr = unix_stream.local_addr()?;
   let remote_addr = unix_stream.peer_addr()?;
-  let resource = StreamResource::unix_stream(unix_stream);
+  let resource = UnixStreamResource::new(unix_stream.into_split());
   let mut state = state.borrow_mut();
   let rid = state.resource_table.add(resource);
   Ok(json!({

runtime/ops/process.rs

@@ -1,6 +1,9 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 
-use super::io::{std_file_resource, StreamResource};
+use super::io::ChildStderrResource;
+use super::io::ChildStdinResource;
+use super::io::ChildStdoutResource;
+use super::io::StdFileResource;
 use crate::permissions::Permissions;
 use deno_core::error::bad_resource_id;
 use deno_core::error::type_error;
@@ -34,7 +37,7 @@ fn clone_file(
   state: &mut OpState,
   rid: u32,
 ) -> Result<std::fs::File, AnyError> {
-  std_file_resource(state, rid, move |r| match r {
+  StdFileResource::with(state, rid, move |r| match r {
     Ok(std_file) => std_file.try_clone().map_err(AnyError::from),
     Err(_) => Err(bad_resource_id()),
   })
@@ -134,7 +137,7 @@ fn op_run(
     Some(child_stdin) => {
       let rid = state
         .resource_table
-        .add(StreamResource::child_stdin(child_stdin));
+        .add(ChildStdinResource::from(child_stdin));
       Some(rid)
     }
     None => None,
@@ -144,7 +147,7 @@ fn op_run(
     Some(child_stdout) => {
       let rid = state
         .resource_table
-        .add(StreamResource::child_stdout(child_stdout));
+        .add(ChildStdoutResource::from(child_stdout));
       Some(rid)
     }
     None => None,
@@ -154,7 +157,7 @@ fn op_run(
     Some(child_stderr) => {
       let rid = state
         .resource_table
-        .add(StreamResource::child_stderr(child_stderr));
+        .add(ChildStderrResource::from(child_stderr));
       Some(rid)
     }
     None => None,

runtime/ops/tls.rs

@@ -1,7 +1,8 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 
-use super::io::StreamResource;
 use super::io::TcpStreamResource;
+use super::io::TlsClientStreamResource;
+use super::io::TlsServerStreamResource;
 use crate::permissions::Permissions;
 use crate::resolve_addr::resolve_addr;
 use crate::resolve_addr::resolve_addr_sync;
@@ -148,7 +149,7 @@ async fn op_start_tls(
     let mut state_ = state.borrow_mut();
     state_
       .resource_table
-      .add(StreamResource::client_tls_stream(tls_stream))
+      .add(TlsClientStreamResource::from(tls_stream))
   };
   Ok(json!({
       "rid": rid,
@@ -210,7 +211,7 @@ async fn op_connect_tls(
     let mut state_ = state.borrow_mut();
     state_
       .resource_table
-      .add(StreamResource::client_tls_stream(tls_stream))
+      .add(TlsClientStreamResource::from(tls_stream))
   };
   Ok(json!({
       "rid": rid,
@@ -402,7 +403,7 @@ async fn op_accept_tls(
     let mut state_ = state.borrow_mut();
     state_
       .resource_table
-      .add(StreamResource::server_tls_stream(tls_stream))
+      .add(TlsServerStreamResource::from(tls_stream))
   };
 
   Ok(json!({

runtime/ops/tty.rs

@@ -1,7 +1,6 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 
-use super::io::std_file_resource;
+use super::io::StdFileResource;
-use super::io::StreamResource;
 use deno_core::error::bad_resource_id;
 use deno_core::error::not_supported;
 use deno_core::error::resource_unavailable;
@@ -90,7 +89,7 @@ fn op_set_raw(
 
     let resource = state
       .resource_table
-      .get::<StreamResource>(rid)
+      .get::<StdFileResource>(rid)
       .ok_or_else(bad_resource_id)?;
 
     if cbreak {
@@ -157,7 +156,7 @@ fn op_set_raw(
 
     let resource = state
       .resource_table
-      .get::<StreamResource>(rid)
+      .get::<StdFileResource>(rid)
       .ok_or_else(bad_resource_id)?;
 
     if resource.fs_file.is_none() {
@@ -229,7 +228,8 @@ fn op_isatty(
   let args: IsattyArgs = serde_json::from_value(args)?;
   let rid = args.rid;
 
-  let isatty: bool = std_file_resource(state, rid as u32, move |r| match r {
+  let isatty: bool =
+    StdFileResource::with(state, rid as u32, move |r| match r {
       Ok(std_file) => {
         #[cfg(windows)]
         {
@@ -273,7 +273,7 @@ fn op_console_size(
   let args: ConsoleSizeArgs = serde_json::from_value(args)?;
   let rid = args.rid;
 
-  let size = std_file_resource(state, rid as u32, move |r| match r {
+  let size = StdFileResource::with(state, rid as u32, move |r| match r {
     Ok(std_file) => {
       #[cfg(windows)]
       {

std/http/_mock_conn.ts

@@ -14,7 +14,9 @@ export function mockConn(base: Partial<Deno.Conn> = {}): Deno.Conn {
       port: 0,
     },
     rid: -1,
-    closeWrite: (): void => {},
+    closeWrite: (): Promise<void> => {
+      return Promise.resolve();
+    },
     read: (): Promise<number | null> => {
       return Promise.resolve(0);
     },

std/ws/test.ts

@@ -102,7 +102,7 @@ Deno.test("[ws] read unmasked ping / pong frame", async () => {
   );
   assertEquals(actual1, "Hello");
   // deno-fmt-ignore
-  const pongFrame= [0x8a, 0x85, 0x37, 0xfa, 0x21, 0x3d, 0x7f, 0x9f, 0x4d, 0x51, 0x58]
+  const pongFrame = [0x8a, 0x85, 0x37, 0xfa, 0x21, 0x3d, 0x7f, 0x9f, 0x4d, 0x51, 0x58]
   const buf2 = new BufReader(new Deno.Buffer(new Uint8Array(pongFrame)));
   const pong = await readFrame(buf2);
   assertEquals(pong.opcode, OpCode.Pong);
@@ -283,7 +283,7 @@ Deno.test("[ws] ws.close() should use 1000 as close code", async () => {
 function dummyConn(r: Deno.Reader, w: Deno.Writer): Deno.Conn {
   return {
     rid: -1,
-    closeWrite: (): void => {},
+    closeWrite: (): Promise<void> => Promise.resolve(),
     read: (x: Uint8Array): Promise<number | null> => r.read(x),
     write: (x: Uint8Array): Promise<number> => w.write(x),
     close: (): void => {},