deps: upgrade to libuv 1.27.0

Notable changes:
- `statx()` is used to retrieve file birth times on
  supported platforms.
- Improved support of running under Windows safe mode.
- Add support for UDP connected sockets. Several functions
  can now return `UV_EBADF` instead of `UV_EINVAL`.
- SunOS support is improved.

PR-URL: https://github.com/nodejs/node/pull/26707
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

4 files changed, 76 insertions, 8 deletions

diff --git a/deps/uv/docs/src/loop.rst b/deps/uv/docs/src/loop.rst
index 86a99adf5d..d642ac1d2f 100644
--- a/deps/uv/docs/src/loop.rst
+++ b/deps/uv/docs/src/loop.rst
@@ -107,6 +107,8 @@ API
       or requests left), or non-zero if more callbacks are expected (meaning
       you should run the event loop again sometime in the future).
 
+    :c:func:`uv_run` is not reentrant. It must not be called from a callback.
+
 .. c:function:: int uv_loop_alive(const uv_loop_t* loop)
 
     Returns non-zero if there are referenced active handles, active
diff --git a/deps/uv/docs/src/signal.rst b/deps/uv/docs/src/signal.rst
index f52b64706a..f5a809ab0b 100644
--- a/deps/uv/docs/src/signal.rst
+++ b/deps/uv/docs/src/signal.rst
@@ -6,7 +6,10 @@
 
 Signal handles implement Unix style signal handling on a per-event loop bases.
 
-Reception of some signals is emulated on Windows:
+Windows notes
+-------------
+
+Reception of some signals is emulated:
 
 * SIGINT is normally delivered when the user presses CTRL+C. However, like
   on Unix, it is not generated when terminal raw mode is enabled.
@@ -24,13 +27,22 @@ Reception of some signals is emulated on Windows:
 * Calls to raise() or abort() to programmatically raise a signal are
   not detected by libuv; these will not trigger a signal watcher.
 
-.. note::
-    On Linux SIGRT0 and SIGRT1 (signals 32 and 33) are used by the NPTL pthreads library to
-    manage threads. Installing watchers for those signals will lead to unpredictable behavior
-    and is strongly discouraged. Future versions of libuv may simply reject them.
-
 .. versionchanged:: 1.15.0 SIGWINCH support on Windows was improved.
 
+Unix notes
+----------
+
+* SIGKILL and SIGSTOP are impossible to catch.
+
+* Handling SIGBUS, SIGFPE, SIGILL or SIGSEGV via libuv results into undefined behavior.
+
+* SIGABRT will not be caught by libuv if generated by `abort()`, e.g. through `assert()`.
+
+* On Linux SIGRT0 and SIGRT1 (signals 32 and 33) are used by the NPTL pthreads library to
+  manage threads. Installing watchers for those signals will lead to unpredictable behavior
+  and is strongly discouraged. Future versions of libuv may simply reject them.
+
+
 Data types
 ----------
 
diff --git a/deps/uv/docs/src/threading.rst b/deps/uv/docs/src/threading.rst
index a5759a38a6..7ca1d4b7a5 100644
--- a/deps/uv/docs/src/threading.rst
+++ b/deps/uv/docs/src/threading.rst
@@ -61,13 +61,13 @@ Threads
 
     ::
 
-        typedef struct uv_process_options_s {
+        typedef struct uv_thread_options_s {
           enum {
             UV_THREAD_NO_FLAGS = 0x00,
             UV_THREAD_HAS_STACK_SIZE = 0x01
           } flags;
           size_t stack_size;
-        } uv_process_options_t;
+        } uv_thread_options_t;
 
     More fields may be added to this struct at any time, so its exact
     layout and size should not be relied upon.
diff --git a/deps/uv/docs/src/udp.rst b/deps/uv/docs/src/udp.rst
index 8148828522..f3de53fbab 100644
--- a/deps/uv/docs/src/udp.rst
+++ b/deps/uv/docs/src/udp.rst
@@ -150,6 +150,44 @@ API
 
     :returns: 0 on success, or an error code < 0 on failure.
 
+.. c:function:: int uv_udp_connect(uv_udp_t* handle, const struct sockaddr* addr)
+
+    Associate the UDP handle to a remote address and port, so every
+    message sent by this handle is automatically sent to that destination.
+    Calling this function with a `NULL` `addr` disconnects the handle.
+    Trying to call `uv_udp_connect()` on an already connected handle will result
+    in an `UV_EISCONN` error. Trying to disconnect a handle that is not
+    connected will return an `UV_ENOTCONN` error.
+
+    :param handle: UDP handle. Should have been initialized with
+        :c:func:`uv_udp_init`.
+
+    :param addr: `struct sockaddr_in` or `struct sockaddr_in6`
+        with the address and port to associate to.
+
+    :returns: 0 on success, or an error code < 0 on failure.
+
+    .. versionadded:: 1.27.0
+
+.. c:function:: int uv_udp_getpeername(const uv_udp_t* handle, struct sockaddr* name, int* namelen)
+
+    Get the remote IP and port of the UDP handle on connected UDP handles.
+    On unconnected handles, it returns `UV_ENOTCONN`.
+
+    :param handle: UDP handle. Should have been initialized with
+        :c:func:`uv_udp_init` and bound.
+
+    :param name: Pointer to the structure to be filled with the address data.
+        In order to support IPv4 and IPv6 `struct sockaddr_storage` should be
+        used.
+
+    :param namelen: On input it indicates the data of the `name` field. On
+        output it indicates how much of it was filled.
+
+    :returns: 0 on success, or an error code < 0 on failure
+
+    .. versionadded:: 1.27.0
+
 .. c:function:: int uv_udp_getsockname(const uv_udp_t* handle, struct sockaddr* name, int* namelen)
 
     Get the local IP and port of the UDP handle.
@@ -247,6 +285,12 @@ API
     (``0.0.0.0`` or ``::``) it will be changed to point to ``localhost``.
     This is done to match the behavior of Linux systems.
 
+    For connected UDP handles, `addr` must be set to `NULL`, otherwise it will
+    return `UV_EISCONN` error.
+
+    For connectionless UDP handles, `addr` cannot be `NULL`, otherwise it will
+    return `UV_EDESTADDRREQ` error.
+
     :param req: UDP request handle. Need not be initialized.
 
     :param handle: UDP handle. Should have been initialized with
@@ -266,15 +310,25 @@ API
     .. versionchanged:: 1.19.0 added ``0.0.0.0`` and ``::`` to ``localhost``
         mapping
 
+    .. versionchanged:: 1.27.0 added support for connected sockets
+
 .. c:function:: int uv_udp_try_send(uv_udp_t* handle, const uv_buf_t bufs[], unsigned int nbufs, const struct sockaddr* addr)
 
     Same as :c:func:`uv_udp_send`, but won't queue a send request if it can't
     be completed immediately.
 
+    For connected UDP handles, `addr` must be set to `NULL`, otherwise it will
+    return `UV_EISCONN` error.
+
+    For connectionless UDP handles, `addr` cannot be `NULL`, otherwise it will
+    return `UV_EDESTADDRREQ` error.
+
     :returns: >= 0: number of bytes sent (it matches the given buffer size).
         < 0: negative error code (``UV_EAGAIN`` is returned when the message
         can't be sent immediately).
 
+    .. versionchanged:: 1.27.0 added support for connected sockets
+
 .. c:function:: int uv_udp_recv_start(uv_udp_t* handle, uv_alloc_cb alloc_cb, uv_udp_recv_cb recv_cb)
 
     Prepare for receiving data. If the socket has not previously been bound