deps: upgrade to libuv 1.23.2

Backport-PR-URL: #24103
PR-URL: #23336
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Fixes: #23043
Fixes: #21773
Fixes: #16601
Fixes: #22999
Fixes: #23219
Fixes: #23066
Fixes: #23067
Fixes: #23089

Author: cjihrig

Diff for: deps/uv/AUTHORS

@@ -351,3 +351,4 @@ Jeremiah Senkpiel <fishrock123@rocketmail.com>
 Andy Zhang <zhangyong232@gmail.com>
 dmabupt <dmabupt@gmail.com>
 Ryan Liptak <squeek502@hotmail.com>
+Ali Ijaz Sheikh <ofrobots@google.com>

Diff for: deps/uv/CMakeLists.txt

@@ -193,7 +193,6 @@ if(WIN32)
        src/win/poll.c
        src/win/process.c
        src/win/process-stdio.c
-       src/win/req.c
        src/win/signal.c
        src/win/snprintf.c
        src/win/stream.c

Diff for: deps/uv/ChangeLog

@@ -1,3 +1,41 @@
+2018.10.09, Version 1.23.2 (Stable), 34c12788d2e7308f3ac506c0abcbf74c0d6abd20
+
+Changes since version 1.23.1:
+
+* unix: return 0 retrieving rss on cygwin (cjihrig)
+
+* unix: initialize uv_interface_address_t.phys_addr (cjihrig)
+
+* test: handle uv_os_setpriority() windows edge case (cjihrig)
+
+* tty, win: fix read stop for raw mode (Bartosz Sosnowski)
+
+* Revert "Revert "unix,fs: fix for potential partial reads/writes"" (Jameson
+  Nash)
+
+* unix,readv: always permit partial reads to return (Jameson Nash)
+
+* win,tty: fix uv_tty_close() (Bartosz Sosnowski)
+
+* doc: remove extraneous "on" (Ben Noordhuis)
+
+* unix,win: fix threadpool race condition (Anna Henningsen)
+
+* unix: rework thread barrier implementation (Ben Noordhuis)
+
+* aix: switch to libuv's own thread barrier impl (Ben Noordhuis)
+
+* unix: signal done to last thread barrier waiter (Ben Noordhuis)
+
+* test: add uv_barrier_wait serial thread test (Ali Ijaz Sheikh)
+
+* unix: optimize uv_fs_readlink() memory allocation (Ben Noordhuis)
+
+* win: remove req.c and other cleanup (Carlo Marcelo Arenas Belón)
+
+* aix: don't EISDIR on read from directory fd (Ben Noordhuis)
+
+
 2018.09.22, Version 1.23.1 (Stable), d2282b3d67821dc53c907c2155fa8c5c6ce25180
 
 Changes since version 1.23.0:

Diff for: deps/uv/Makefile.am

@@ -68,7 +68,6 @@ libuv_la_SOURCES += src/win/async.c \
                     src/win/poll.c \
                     src/win/process-stdio.c \
                     src/win/process.c \
-                    src/win/req.c \
                     src/win/req-inl.h \
                     src/win/signal.c \
                     src/win/stream.c \
@@ -340,8 +339,7 @@ libuv_la_SOURCES += src/unix/aix.c src/unix/aix-common.c
 endif
 
 if ANDROID
-uvinclude_HEADERS += include/uv/android-ifaddrs.h \
-                   include/uv/pthread-barrier.h
+uvinclude_HEADERS += include/uv/android-ifaddrs.h
 libuv_la_SOURCES += src/unix/android-ifaddrs.c \
                     src/unix/pthread-fixes.c
 endif
@@ -361,8 +359,7 @@ libuv_la_SOURCES += src/unix/cygwin.c \
 endif
 
 if DARWIN
-uvinclude_HEADERS += include/uv/darwin.h \
-                   include/uv/pthread-barrier.h
+uvinclude_HEADERS += include/uv/darwin.h
 libuv_la_CFLAGS += -D_DARWIN_USE_64_BIT_INODE=1
 libuv_la_CFLAGS += -D_DARWIN_UNLIMITED_SELECT=1
 libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
@@ -445,7 +442,6 @@ libuv_la_SOURCES += src/unix/no-proctitle.c \
 endif
 
 if OS390
-uvinclude_HEADERS += include/uv/pthread-barrier.h
 libuv_la_CFLAGS += -D_UNIX03_THREADS \
                    -D_UNIX03_SOURCE \
                    -D_OPEN_SYS_IF_EXT=1 \

Diff for: deps/uv/configure.ac

@@ -13,7 +13,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 AC_PREREQ(2.57)
-AC_INIT([libuv], [1.23.1], [https://github.com/libuv/libuv/issues])
+AC_INIT([libuv], [1.23.2], [https://github.com/libuv/libuv/issues])
 AC_CONFIG_MACRO_DIR([m4])
 m4_include([m4/libuv-extra-automake-flags.m4])
 m4_include([m4/as_case.m4])

Diff for: deps/uv/docs/src/design.rst

@@ -126,7 +126,7 @@ so the current approach is to run blocking file I/O operations in a thread pool.
 For a thorough explanation of the cross-platform file I/O landscape, checkout
 `this post <http://blog.libtorrent.org/2012/10/asynchronous-disk-io/>`_.
 
-libuv currently uses a global thread pool on which all loops can queue work on. 3 types of
+libuv currently uses a global thread pool on which all loops can queue work. 3 types of
 operations are currently run on this pool:
 
     * File system operations

Diff for: deps/uv/include/uv/pthread-barrier.h

@@ -66,10 +66,6 @@
 # include "uv/posix.h"
 #endif
 
-#ifndef PTHREAD_BARRIER_SERIAL_THREAD
-# include "uv/pthread-barrier.h"
-#endif
-
 #ifndef NI_MAXHOST
 # define NI_MAXHOST 1025
 #endif
@@ -136,8 +132,28 @@ typedef pthread_rwlock_t uv_rwlock_t;
 typedef UV_PLATFORM_SEM_T uv_sem_t;
 typedef pthread_cond_t uv_cond_t;
 typedef pthread_key_t uv_key_t;
-typedef pthread_barrier_t uv_barrier_t;
 
+/* Note: guard clauses should match uv_barrier_init's in src/unix/thread.c. */
+#if defined(_AIX) || !defined(PTHREAD_BARRIER_SERIAL_THREAD)
+/* TODO(bnoordhuis) Merge into uv_barrier_t in v2. */
+struct _uv_barrier {
+  uv_mutex_t mutex;
+  uv_cond_t cond;
+  unsigned threshold;
+  unsigned in;
+  unsigned out;
+};
+
+typedef struct {
+  struct _uv_barrier* b;
+# if defined(PTHREAD_BARRIER_SERIAL_THREAD)
+  /* TODO(bnoordhuis) Remove padding in v2. */
+  char pad[sizeof(pthread_barrier_t) - sizeof(struct _uv_barrier*)];
+# endif
+} uv_barrier_t;
+#else
+typedef pthread_barrier_t uv_barrier_t;
+#endif
 
 /* Platform-specific definitions for uv_spawn support. */
 typedef gid_t uv_gid_t;

Diff for: deps/uv/include/uv/unix.h

@@ -32,7 +32,7 @@
 
 #define UV_VERSION_MAJOR 1
 #define UV_VERSION_MINOR 23
-#define UV_VERSION_PATCH 1
+#define UV_VERSION_PATCH 2
 #define UV_VERSION_IS_RELEASE 1
 #define UV_VERSION_SUFFIX ""
 

Diff for: deps/uv/include/uv/version.h

@@ -62,10 +62,10 @@ static void worker(void* arg) {
   uv_sem_post((uv_sem_t*) arg);
   arg = NULL;
 
+  uv_mutex_lock(&mutex);
   for (;;) {
-    uv_mutex_lock(&mutex);
+    /* `mutex` should always be locked at this point. */
 
-  wait_for_work:
     /* Keep waiting while either no work is present or only slow I/O
        and we're at the threshold for that. */
     while (QUEUE_EMPTY(&wq) ||
@@ -93,13 +93,13 @@ static void worker(void* arg) {
          other work in the queue is done. */
       if (slow_io_work_running >= slow_work_thread_threshold()) {
         QUEUE_INSERT_TAIL(&wq, q);
-        goto wait_for_work;
+        continue;
       }
 
       /* If we encountered a request to run slow I/O work but there is none
          to run, that means it's cancelled => Start over. */
       if (QUEUE_EMPTY(&slow_io_pending_wq))
-        goto wait_for_work;
+        continue;
 
       is_slow_work = 1;
       slow_io_work_running++;
@@ -122,13 +122,19 @@ static void worker(void* arg) {
     w->work(w);
 
     uv_mutex_lock(&w->loop->wq_mutex);
-    if (is_slow_work)
-      slow_io_work_running--;
     w->work = NULL;  /* Signal uv_cancel() that the work req is done
                         executing. */
     QUEUE_INSERT_TAIL(&w->loop->wq, &w->wq);
     uv_async_send(&w->loop->wq_async);
     uv_mutex_unlock(&w->loop->wq_mutex);
+
+    /* Lock `mutex` since that is expected at the start of the next
+     * iteration. */
+    uv_mutex_lock(&mutex);
+    if (is_slow_work) {
+      /* `slow_io_work_running` is protected by `mutex`. */
+      slow_io_work_running--;
+    }
   }
 }
 

Diff for: deps/uv/src/threadpool.c

@@ -119,16 +119,13 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
       continue;
 
     address = *addresses;
+    memset(address->phys_addr, 0, sizeof(address->phys_addr));
 
     for (i = 0; i < *count; i++) {
       if (strcmp(address->name, ent->ifa_name) == 0) {
-#if defined(__CYGWIN__) || defined(__MSYS__)
-        memset(address->phys_addr, 0, sizeof(address->phys_addr));
-#else
         struct sockaddr_dl* sa_addr;
         sa_addr = (struct sockaddr_dl*)(ent->ifa_addr);
         memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
-#endif
       }
       address++;
     }

Diff for: deps/uv/src/unix/bsd-ifaddrs.c

@@ -38,7 +38,7 @@ int uv_uptime(double* uptime) {
 int uv_resident_set_memory(size_t* rss) {
   /* FIXME: read /proc/meminfo? */
   *rss = 0;
-  return UV_ENOSYS;
+  return 0;
 }
 
 int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {