--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/libuv/test/test-delayed-accept.c	Wed Jan 14 19:39:52 2026 -0800
@@ -0,0 +1,189 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "task.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+static int connection_cb_called = 0;
+static int do_accept_called = 0;
+static int close_cb_called = 0;
+static int connect_cb_called = 0;
+
+
+static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
+  buf->base = malloc(size);
+  buf->len = size;
+}
+
+
+static void close_cb(uv_handle_t* handle) {
+  ASSERT_NOT_NULL(handle);
+
+  free(handle);
+
+  close_cb_called++;
+}
+
+
+static void do_accept(uv_timer_t* timer_handle) {
+  uv_tcp_t* server;
+  uv_tcp_t* accepted_handle = (uv_tcp_t*)malloc(sizeof *accepted_handle);
+  int r;
+
+  ASSERT_NOT_NULL(timer_handle);
+  ASSERT_NOT_NULL(accepted_handle);
+
+  r = uv_tcp_init(uv_default_loop(), accepted_handle);
+  ASSERT_OK(r);
+
+  server = (uv_tcp_t*)timer_handle->data;
+  r = uv_accept((uv_stream_t*)server, (uv_stream_t*)accepted_handle);
+  ASSERT_OK(r);
+
+  do_accept_called++;
+
+  /* Immediately close the accepted handle. */
+  uv_close((uv_handle_t*)accepted_handle, close_cb);
+
+  /* After accepting the two clients close the server handle */
+  if (do_accept_called == 2) {
+    uv_close((uv_handle_t*)server, close_cb);
+  }
+
+  /* Dispose the timer. */
+  uv_close((uv_handle_t*)timer_handle, close_cb);
+}
+
+
+static void connection_cb(uv_stream_t* tcp, int status) {
+  int r;
+  uv_timer_t* timer_handle;
+
+  ASSERT_OK(status);
+
+  timer_handle = (uv_timer_t*)malloc(sizeof *timer_handle);
+  ASSERT_NOT_NULL(timer_handle);
+
+  /* Accept the client after 1 second */
+  r = uv_timer_init(uv_default_loop(), timer_handle);
+  ASSERT_OK(r);
+
+  timer_handle->data = tcp;
+
+  r = uv_timer_start(timer_handle, do_accept, 1000, 0);
+  ASSERT_OK(r);
+
+  connection_cb_called++;
+}
+
+
+static void start_server(void) {
+  struct sockaddr_in addr;
+  uv_tcp_t* server = (uv_tcp_t*)malloc(sizeof *server);
+  int r;
+
+  ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
+  ASSERT_NOT_NULL(server);
+
+  r = uv_tcp_init(uv_default_loop(), server);
+  ASSERT_OK(r);
+  r = uv_tcp_bind(server, (const struct sockaddr*) &addr, 0);
+  ASSERT_OK(r);
+
+  r = uv_listen((uv_stream_t*)server, 128, connection_cb);
+  ASSERT_OK(r);
+}
+
+
+static void read_cb(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {
+  /* The server will not send anything, it should close gracefully. */
+
+  if (buf->base) {
+    free(buf->base);
+  }
+
+  if (nread >= 0) {
+    ASSERT_OK(nread);
+  } else {
+    ASSERT_NOT_NULL(tcp);
+    ASSERT_EQ(nread, UV_EOF);
+    uv_close((uv_handle_t*)tcp, close_cb);
+  }
+}
+
+
+static void connect_cb(uv_connect_t* req, int status) {
+  int r;
+
+  ASSERT_NOT_NULL(req);
+  ASSERT_OK(status);
+
+  /* Not that the server will send anything, but otherwise we'll never know
+   * when the server closes the connection. */
+  r = uv_read_start((uv_stream_t*)(req->handle), alloc_cb, read_cb);
+  ASSERT_OK(r);
+
+  connect_cb_called++;
+
+  free(req);
+}
+
+
+static void client_connect(void) {
+  struct sockaddr_in addr;
+  uv_tcp_t* client = (uv_tcp_t*)malloc(sizeof *client);
+  uv_connect_t* connect_req = malloc(sizeof *connect_req);
+  int r;
+
+  ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
+  ASSERT_NOT_NULL(client);
+  ASSERT_NOT_NULL(connect_req);
+
+  r = uv_tcp_init(uv_default_loop(), client);
+  ASSERT_OK(r);
+
+  r = uv_tcp_connect(connect_req,
+                     client,
+                     (const struct sockaddr*) &addr,
+                     connect_cb);
+  ASSERT_OK(r);
+}
+
+
+
+TEST_IMPL(delayed_accept) {
+  start_server();
+
+  client_connect();
+  client_connect();
+
+  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+
+  ASSERT_EQ(2, connection_cb_called);
+  ASSERT_EQ(2, do_accept_called);
+  ASSERT_EQ(2, connect_cb_called);
+  ASSERT_EQ(7, close_cb_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}