--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/libuv/test/test-close-fd.c	Wed Jan 14 19:39:52 2026 -0800
@@ -0,0 +1,84 @@
+/* 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"
+#ifndef _WIN32
+#include <unistd.h>
+#endif
+
+static unsigned int read_cb_called;
+
+static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
+  static char slab[1];
+  buf->base = slab;
+  buf->len = sizeof(slab);
+}
+
+static void read_cb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf) {
+  switch (++read_cb_called) {
+  case 1:
+    ASSERT_EQ(1, nread);
+    uv_read_stop(handle);
+    break;
+  case 2:
+    ASSERT_EQ(nread, UV_EOF);
+    uv_close((uv_handle_t *) handle, NULL);
+    break;
+  default:
+    ASSERT(!"read_cb_called > 2");
+  }
+}
+
+TEST_IMPL(close_fd) {
+  uv_pipe_t pipe_handle;
+  uv_fs_t req;
+  uv_buf_t bufs[1];
+  uv_file fd[2];
+  bufs[0] = uv_buf_init("", 1);
+
+  ASSERT_OK(uv_pipe(fd, 0, 0));
+  ASSERT_OK(uv_pipe_init(uv_default_loop(), &pipe_handle, 0));
+  ASSERT_OK(uv_pipe_open(&pipe_handle, fd[0]));
+  /* uv_pipe_open() takes ownership of the file descriptor. */
+  fd[0] = -1;
+
+  ASSERT_EQ(1, uv_fs_write(NULL, &req, fd[1], bufs, 1, -1, NULL));
+  ASSERT_EQ(1, req.result);
+  uv_fs_req_cleanup(&req);
+#ifdef _WIN32
+  ASSERT_OK(_close(fd[1]));
+#else
+  ASSERT_OK(close(fd[1]));
+#endif
+  fd[1] = -1;
+  ASSERT_OK(uv_read_start((uv_stream_t *) &pipe_handle, alloc_cb, read_cb));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+  ASSERT_EQ(1, read_cb_called);
+  ASSERT_OK(uv_is_active((const uv_handle_t *) &pipe_handle));
+  ASSERT_OK(uv_read_start((uv_stream_t *) &pipe_handle, alloc_cb, read_cb));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+  ASSERT_EQ(2, read_cb_called);
+  ASSERT_NE(0, uv_is_closing((const uv_handle_t *) &pipe_handle));
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}