deps: upgrade to libuv 1.21.0

Notable changes:

- Building via cmake is now supported.
  PR-URL: https://github.com/libuv/libuv/pull/1850
- Stricter checks have been added to prevent watching the same
  file descriptor multiple times.
  PR-URL: https://github.com/libuv/libuv/pull/1851
  Refs: https://github.com/nodejs/node/issues/3604
- An IPC deadlock on Windows has been fixed.
  PR-URL: https://github.com/libuv/libuv/pull/1843
  Fixes: https://github.com/nodejs/node/issues/9706
  Fixes: https://github.com/nodejs/node/issues/7657
- uv_fs_lchown() has been added.
  PR-URL: https://github.com/libuv/libuv/pull/1826
  Refs: https://github.com/nodejs/node/issues/19868
- uv_fs_copyfile() sets errno on error.
  PR-URL: https://github.com/libuv/libuv/pull/1881
  Fixes: https://github.com/nodejs/node/issues/21329
- uv_fs_fchmod() supports -A files on Windows.
  PR-URL: https://github.com/libuv/libuv/pull/1819
  Refs: https://github.com/nodejs/node/issues/12803

PR-URL: https://github.com/nodejs/node/pull/21466
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 15 insertions, 2 deletions

diff --git a/deps/uv/test/test-udp-open.c b/deps/uv/test/test-udp-open.c
index 4d77f45d36..ee04c99f61 100644
--- a/deps/uv/test/test-udp-open.c
+++ b/deps/uv/test/test-udp-open.c
@@ -106,8 +106,7 @@ static void recv_cb(uv_udp_t* handle,
   }
 
   if (nread == 0) {
-    /* Returning unused buffer */
-    /* Don't count towards sv_recv_cb_called */
+    /* Returning unused buffer. Don't count towards sv_recv_cb_called */
     ASSERT(addr == NULL);
     return;
   }
@@ -165,6 +164,20 @@ TEST_IMPL(udp_open) {
                   send_cb);
   ASSERT(r == 0);
 
+#ifndef _WIN32
+  {
+    uv_udp_t client2;
+
+    r = uv_udp_init(uv_default_loop(), &client2);
+    ASSERT(r == 0);
+
+    r = uv_udp_open(&client2, sock);
+    ASSERT(r == UV_EEXIST);
+
+    uv_close((uv_handle_t*) &client2, NULL);
+  }
+#endif  /* !_WIN32 */
+
   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
 
   ASSERT(send_cb_called == 1);