--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/libuv/test/test-tcp-read-stop-start.c	Wed Jan 14 19:39:52 2026 -0800
@@ -0,0 +1,136 @@
+/* Copyright libuv project 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"
+
+static uv_tcp_t server;
+static uv_tcp_t connection;
+static int read_cb_called = 0;
+
+static uv_tcp_t client;
+static uv_connect_t connect_req;
+
+
+static void on_read2(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf);
+
+static void on_write_close_immediately(uv_write_t* req, int status) {
+  ASSERT_OK(status);
+
+  uv_close((uv_handle_t*)req->handle, NULL); /* Close immediately */
+  free(req);
+}
+
+static void on_write(uv_write_t* req, int status) {
+  ASSERT_OK(status);
+
+  free(req);
+}
+
+static void do_write(uv_stream_t* stream, uv_write_cb cb) {
+  uv_write_t* req = malloc(sizeof(*req));
+  uv_buf_t buf;
+  buf.base = "1234578";
+  buf.len = 8;
+  ASSERT_OK(uv_write(req, stream, &buf, 1, cb));
+}
+
+static void on_alloc(uv_handle_t* handle,
+                     size_t suggested_size,
+                     uv_buf_t* buf) {
+  static char slab[65536];
+  buf->base = slab;
+  buf->len = sizeof(slab);
+}
+
+static void on_read1(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
+  ASSERT_GE(nread, 0);
+
+  /* Do write on a half open connection to force WSAECONNABORTED (on Windows)
+   * in the subsequent uv_read_start()
+   */
+  do_write(stream, on_write);
+
+  ASSERT_OK(uv_read_stop(stream));
+
+  ASSERT_OK(uv_read_start(stream, on_alloc, on_read2));
+
+  read_cb_called++;
+}
+
+static void on_read2(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
+  ASSERT_LT(nread, 0);
+
+  uv_close((uv_handle_t*)stream, NULL);
+  uv_close((uv_handle_t*)&server, NULL);
+
+  read_cb_called++;
+}
+
+static void on_connection(uv_stream_t* server, int status) {
+  ASSERT_OK(status);
+
+  ASSERT_OK(uv_tcp_init(server->loop, &connection));
+
+  ASSERT_OK(uv_accept(server, (uv_stream_t* )&connection));
+
+  ASSERT_OK(uv_read_start((uv_stream_t*)&connection, on_alloc, on_read1));
+}
+
+static void on_connect(uv_connect_t* req, int status) {
+  ASSERT_OK(status);
+
+  do_write((uv_stream_t*)&client, on_write_close_immediately);
+}
+
+TEST_IMPL(tcp_read_stop_start) {
+  uv_loop_t* loop = uv_default_loop();
+
+  { /* Server */
+    struct sockaddr_in addr;
+
+    ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
+
+    ASSERT_OK(uv_tcp_init(loop, &server));
+
+    ASSERT_OK(uv_tcp_bind(&server, (struct sockaddr*) & addr, 0));
+
+    ASSERT_OK(uv_listen((uv_stream_t*)&server, 10, on_connection));
+  }
+
+  { /* Client */
+    struct sockaddr_in addr;
+
+    ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
+
+    ASSERT_OK(uv_tcp_init(loop, &client));
+
+    ASSERT_OK(uv_tcp_connect(&connect_req, &client,
+                             (const struct sockaddr*) & addr, on_connect));
+  }
+
+  ASSERT_OK(uv_run(loop, UV_RUN_DEFAULT));
+
+  ASSERT_GE(read_cb_called, 2);
+
+  MAKE_VALGRIND_HAPPY(loop);
+  return 0;
+}