deps: upgrade to libuv 1.31.0

Notable changes:

- UV_FS_O_FILEMAP has been added for faster access to memory
  mapped files on Windows.
- uv_fs_mkdir() now returns UV_EINVAL for invalid filenames
  on Windows. It previously returned UV_ENOENT.
- The uv_fs_statfs() API has been added.
- The uv_os_environ() and uv_os_free_environ() APIs have
  been added.

Fixes: #28599
Fixes: #28945
Fixes: #29008
PR-URL: #29070
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

Author: cjihrig

Diff for: deps/uv/.gitignore

@@ -51,6 +51,7 @@ Makefile.in
 /test/run-benchmarks
 /test/run-benchmarks.exe
 /test/run-benchmarks.dSYM
+test_file_*
 
 *.sln
 *.sln.cache

Diff for: deps/uv/.mailmap

@@ -38,6 +38,7 @@ Sam Roberts <vieuxtech@gmail.com> <sam@strongloop.com>
 San-Tai Hsu <vanilla@fatpipi.com>
 Santiago Gimeno <santiago.gimeno@quantion.es> <santiago.gimeno@gmail.com>
 Saúl Ibarra Corretgé <saghul@gmail.com>
+Saúl Ibarra Corretgé <saghul@gmail.com> <s@saghul.net>
 Shigeki Ohtsu <ohtsu@iij.ad.jp> <ohtsu@ohtsu.org>
 Timothy J. Fontaine <tjfontaine@gmail.com>
 Yasuhiro Matsumoto <mattn.jp@gmail.com>

Diff for: deps/uv/AUTHORS

@@ -389,3 +389,10 @@ Jenil Christo <jenilchristo5@gmail.com>
 Evgeny Ermakov <evgeny.v.ermakov@gmail.com>
 gengjiawen <technicalcute@gmail.com>
 Leo Chung <gewalalb@gmail.com>
+Javier Blazquez <jblazquez@riotgames.com>
+Mustafa M <mus-m@outlook.com>
+Zach Bjornson <zbbjornson@gmail.com>
+Nan Xiao <nan@chinadtrace.org>
+Ben Davies <kaiepi@outlook.com>
+Nhan Khong <knhana7@gmail.com>
+Crunkle <justcrunkle@hotmail.co.uk>

Diff for: deps/uv/CMakeLists.txt

@@ -53,6 +53,8 @@ set(uv_test_sources
     test/test-fs-poll.c
     test/test-fs.c
     test/test-fs-readdir.c
+    test/test-fs-fd-hash.c
+    test/test-fs-open-flags.c
     test/test-get-currentexe.c
     test/test-get-loadavg.c
     test/test-get-memory.c

Diff for: deps/uv/ChangeLog

@@ -1,3 +1,52 @@
+2019.08.10, Version 1.31.0 (Stable), 0a6771cee4c15184c924bfe9d397bdd0c3b206ba
+
+Changes since version 1.30.1:
+
+* win,fs: don't modify global file translation mode (Javier Blazquez)
+
+* win: fix uv_os_tmpdir when env var is 260 chars (Mustafa M)
+
+* win: prevent tty event explosion machine hang (Javier Blazquez)
+
+* win: add UV_FS_O_FILEMAP (João Reis)
+
+* win, fs: mkdir return UV_EINVAL for invalid names (Bartosz Sosnowski)
+
+* github: add root warning to template (cjihrig)
+
+* win: misc fs cleanup (cjihrig)
+
+* unix,win: add uv_fs_statfs() (cjihrig)
+
+* test: avoid AF_LOCAL (Carlo Marcelo Arenas Belón)
+
+* unix,win: add ability to retrieve all env variables (Saúl Ibarra Corretgé)
+
+* Revert "darwin: speed up uv_set_process_title()" (Ben Noordhuis)
+
+* doc: add %p to valgrind log-file arg (Zach Bjornson)
+
+* doc: fix typo in basics.rst (Nan Xiao)
+
+* ibmi: support Makefile build for IBM i (Xu Meng)
+
+* OpenBSD: only get active CPU core count (Ben Davies)
+
+* test: fix gcc 8 warnings for tests (Nhan Khong)
+
+* ibmi: use correct header files (Xu Meng)
+
+* unix: clear UV_HANDLE_READING flag before callback (zyxwvu Shi)
+
+* unix: fix unused-function warning on BSD (Nhan Khong)
+
+* test: fix test runner on MinGW (Crunkle)
+
+* win: remove try-except outside MSVC (Crunkle)
+
+* win: fix uv_spawn() ENOMEM on empty env (Ben Noordhuis)
+
+
 2019.07.03, Version 1.30.1 (Stable), 1551969c84c2f546a429dac169c7fdac3e38115e
 
 Changes since version 1.30.0:

Diff for: deps/uv/Makefile.am

@@ -184,6 +184,8 @@ test_run_tests_SOURCES = test/blackhole-server.c \
                          test/test-fs-poll.c \
                          test/test-fs.c \
                          test/test-fs-readdir.c \
+                         test/test-fs-fd-hash.c \
+                         test/test-fs-open-flags.c \
                          test/test-fork.c \
                          test/test-getters-setters.c \
                          test/test-get-currentexe.c \
@@ -322,6 +324,12 @@ test_run_tests_CFLAGS += -D_ALL_SOURCE \
                          -D_LINUX_SOURCE_COMPAT
 endif
 
+if OS400
+test_run_tests_CFLAGS += -D_ALL_SOURCE \
+                         -D_XOPEN_SOURCE=500 \
+                         -D_LINUX_SOURCE_COMPAT
+endif
+
 if HAIKU
 test_run_tests_CFLAGS += -D_BSD_SOURCE
 endif
@@ -362,6 +370,19 @@ uvinclude_HEADERS += include/uv/aix.h
 libuv_la_SOURCES += src/unix/aix.c src/unix/aix-common.c
 endif
 
+if OS400
+libuv_la_CFLAGS += -D_ALL_SOURCE \
+                   -D_XOPEN_SOURCE=500 \
+                   -D_LINUX_SOURCE_COMPAT \
+                   -D_THREAD_SAFE
+uvinclude_HEADERS += include/uv/posix.h
+libuv_la_SOURCES += src/unix/aix-common.c \
+                    src/unix/ibmi.c \
+                    src/unix/posix-poll.c \
+                    src/unix/no-fsevents.c \
+                    src/unix/no-proctitle.c
+endif
+
 if ANDROID
 uvinclude_HEADERS += include/uv/android-ifaddrs.h
 libuv_la_SOURCES += src/unix/android-ifaddrs.c \

Diff for: deps/uv/README.md

@@ -387,7 +387,7 @@ $ gdb --args out/Debug/run-tests TEST_NAME
 Use the `--trace-children=yes` parameter:
 
 ```bash
-$ valgrind --trace-children=yes -v --tool=memcheck --leak-check=full --track-origins=yes --leak-resolution=high --show-reachable=yes --log-file=memcheck.log out/Debug/run-tests TEST_NAME
+$ valgrind --trace-children=yes -v --tool=memcheck --leak-check=full --track-origins=yes --leak-resolution=high --show-reachable=yes --log-file=memcheck-%p.log out/Debug/run-tests TEST_NAME
 ```
 
 ### Running benchmarks

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], [1.30.1], [https://github.com/libuv/libuv/issues])
+AC_INIT([libuv], [1.31.0], [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])
@@ -63,6 +63,7 @@ AM_CONDITIONAL([MSYS],     [AS_CASE([$host_os],[msys*],         [true], [false])
 AM_CONDITIONAL([NETBSD],   [AS_CASE([$host_os],[netbsd*],       [true], [false])])
 AM_CONDITIONAL([OPENBSD],  [AS_CASE([$host_os],[openbsd*],      [true], [false])])
 AM_CONDITIONAL([OS390],    [AS_CASE([$host_os],[openedition*],  [true], [false])])
+AM_CONDITIONAL([OS400],    [AS_CASE([$host_os],[os400],         [true], [false])])
 AM_CONDITIONAL([SUNOS],    [AS_CASE([$host_os],[solaris*],      [true], [false])])
 AM_CONDITIONAL([WINNT],    [AS_CASE([$host_os],[mingw*],        [true], [false])])
 AS_CASE([$host_os],[mingw*], [

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

@@ -102,6 +102,24 @@ Data types
             UV_FS_CLOSEDIR
         } uv_fs_type;
 
+.. c:type:: uv_statfs_t
+
+    Reduced cross platform equivalent of ``struct statfs``.
+    Used in :c:func:`uv_fs_statfs`.
+
+    ::
+
+        typedef struct uv_statfs_s {
+            uint64_t f_type;
+            uint64_t f_bsize;
+            uint64_t f_blocks;
+            uint64_t f_bfree;
+            uint64_t f_bavail;
+            uint64_t f_files;
+            uint64_t f_ffree;
+            uint64_t f_spare[4];
+        } uv_statfs_t;
+
 .. c:type:: uv_dirent_t
 
     Cross platform (reduced) equivalent of ``struct dirent``.
@@ -200,6 +218,11 @@ API
 
     Equivalent to :man:`preadv(2)`.
 
+    .. warning::
+        On Windows, under non-MSVC environments (e.g. when GCC or Clang is used
+        to build libuv), files opened using ``UV_FS_O_FILEMAP`` may cause a fatal
+        crash if the memory mapped read operation fails.
+
 .. c:function:: int uv_fs_unlink(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb)
 
     Equivalent to :man:`unlink(2)`.
@@ -208,6 +231,11 @@ API
 
     Equivalent to :man:`pwritev(2)`.
 
+    .. warning::
+        On Windows, under non-MSVC environments (e.g. when GCC or Clang is used
+        to build libuv), files opened using ``UV_FS_O_FILEMAP`` may cause a fatal
+        crash if the memory mapped write operation fails.
+
 .. c:function:: int uv_fs_mkdir(uv_loop_t* loop, uv_fs_t* req, const char* path, int mode, uv_fs_cb cb)
 
     Equivalent to :man:`mkdir(2)`.
@@ -290,6 +318,17 @@ API
 
     Equivalent to :man:`stat(2)`, :man:`fstat(2)` and :man:`lstat(2)` respectively.
 
+.. c:function:: int uv_fs_statfs(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb)
+
+    Equivalent to :man:`statfs(2)`. On success, a `uv_statfs_t` is allocated
+    and returned via `req->ptr`. This memory is freed by `uv_fs_req_cleanup()`.
+
+    .. note::
+        Any fields in the resulting `uv_statfs_t` that are not supported by the
+        underlying operating system are set to zero.
+
+    .. versionadded:: 1.31.0
+
 .. c:function:: int uv_fs_rename(uv_loop_t* loop, uv_fs_t* req, const char* path, const char* new_path, uv_fs_cb cb)
 
     Equivalent to :man:`rename(2)`.
@@ -534,6 +573,14 @@ File open constants
 
     .. versionchanged:: 1.17.0 support is added for Windows.
 
+.. c:macro:: UV_FS_O_FILEMAP
+
+    Use a memory file mapping to access the file. When using this flag, the
+    file cannot be open multiple times concurrently.
+
+    .. note::
+        `UV_FS_O_FILEMAP` is only supported on Windows.
+
 .. c:macro:: UV_FS_O_NOATIME
 
     Do not update the file access time when the file is read.

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

@@ -180,6 +180,17 @@ Data types
             char machine[256];
         } uv_utsname_t;
 
+.. c:type:: uv_env_item_t
+
+    Data type for environment variable storage.
+
+    ::
+
+    typedef struct uv_env_item_s {
+        char* name;
+        char* value;
+    } uv_env_item_t;
+
 
 API
 ---
@@ -523,6 +534,23 @@ API
 
     .. versionadded:: 1.8.0
 
+.. c:function:: int uv_os_environ(uv_env_item_t** envitems, int* count)
+
+    Retrieves all environment variables. This function will allocate memory
+    which must be freed by calling :c:func:`uv_os_free_environ`.
+
+    .. warning::
+        This function is not thread safe.
+
+    .. versionadded:: 1.31.0
+
+.. c:function:: void uv_os_free_environ(uv_env_item_t* envitems, int count);
+
+    Frees the memory allocated for the environment variables by
+    :c:func:`uv_os_environ`.
+
+    .. versionadded:: 1.31.0
+
 .. c:function:: int uv_os_getenv(const char* name, char* buffer, size_t* size)
 
     Retrieves the environment variable specified by `name`, copies its value

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

@@ -231,11 +231,13 @@ typedef struct uv_fs_s uv_fs_t;
 typedef struct uv_work_s uv_work_t;
 
 /* None of the above. */
+typedef struct uv_env_item_s uv_env_item_t;
 typedef struct uv_cpu_info_s uv_cpu_info_t;
 typedef struct uv_interface_address_s uv_interface_address_t;
 typedef struct uv_dirent_s uv_dirent_t;
 typedef struct uv_passwd_s uv_passwd_t;
 typedef struct uv_utsname_s uv_utsname_t;
+typedef struct uv_statfs_s uv_statfs_t;
 
 typedef enum {
   UV_LOOP_BLOCK_SIGNAL
@@ -1070,6 +1072,17 @@ struct uv_utsname_s {
      to as meaningless in the docs. */
 };
 
+struct uv_statfs_s {
+  uint64_t f_type;
+  uint64_t f_bsize;
+  uint64_t f_blocks;
+  uint64_t f_bfree;
+  uint64_t f_bavail;
+  uint64_t f_files;
+  uint64_t f_ffree;
+  uint64_t f_spare[4];
+};
+
 typedef enum {
   UV_DIRENT_UNKNOWN,
   UV_DIRENT_FILE,
@@ -1150,6 +1163,13 @@ UV_EXTERN int uv_interface_addresses(uv_interface_address_t** addresses,
 UV_EXTERN void uv_free_interface_addresses(uv_interface_address_t* addresses,
                                            int count);
 
+struct uv_env_item_s {
+  char* name;
+  char* value;
+};
+
+UV_EXTERN int uv_os_environ(uv_env_item_t** envitems, int* count);
+UV_EXTERN void uv_os_free_environ(uv_env_item_t* envitems, int count);
 UV_EXTERN int uv_os_getenv(const char* name, char* buffer, size_t* size);
 UV_EXTERN int uv_os_setenv(const char* name, const char* value);
 UV_EXTERN int uv_os_unsetenv(const char* name);
@@ -1205,7 +1225,8 @@ typedef enum {
   UV_FS_LCHOWN,
   UV_FS_OPENDIR,
   UV_FS_READDIR,
-  UV_FS_CLOSEDIR
+  UV_FS_CLOSEDIR,
+  UV_FS_STATFS
 } uv_fs_type;
 
 struct uv_dir_s {
@@ -1433,6 +1454,10 @@ UV_EXTERN int uv_fs_lchown(uv_loop_t* loop,
                            uv_uid_t uid,
                            uv_gid_t gid,
                            uv_fs_cb cb);
+UV_EXTERN int uv_fs_statfs(uv_loop_t* loop,
+                           uv_fs_t* req,
+                           const char* path,
+                           uv_fs_cb cb);
 
 
 enum uv_fs_event {

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

@@ -49,6 +49,8 @@
 # include "uv/linux.h"
 #elif defined (__MVS__)
 # include "uv/os390.h"
+#elif defined(__PASE__)  /* __PASE__ and _AIX are both defined on IBM i */
+# include "uv/posix.h"  /* IBM i needs uv/posix.h, not uv/aix.h */
 #elif defined(_AIX)
 # include "uv/aix.h"
 #elif defined(__sun)
@@ -61,8 +63,7 @@
       defined(__OpenBSD__)         || \
       defined(__NetBSD__)
 # include "uv/bsd.h"
-#elif defined(__PASE__)   || \
-      defined(__CYGWIN__) || \
+#elif defined(__CYGWIN__) || \
       defined(__MSYS__)   || \
       defined(__GNU__)
 # include "uv/posix.h"
@@ -481,6 +482,7 @@ typedef struct {
 #endif
 
 /* fs open() flags supported on other platforms: */
+#define UV_FS_O_FILEMAP       0
 #define UV_FS_O_RANDOM        0
 #define UV_FS_O_SHORT_LIVED   0
 #define UV_FS_O_SEQUENTIAL    0

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

@@ -31,8 +31,8 @@
  */
 
 #define UV_VERSION_MAJOR 1
-#define UV_VERSION_MINOR 30
-#define UV_VERSION_PATCH 1
+#define UV_VERSION_MINOR 31
+#define UV_VERSION_PATCH 0
 #define UV_VERSION_IS_RELEASE 1
 #define UV_VERSION_SUFFIX ""
 

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

@@ -668,6 +668,7 @@ typedef struct {
 #define UV_FS_O_APPEND       _O_APPEND
 #define UV_FS_O_CREAT        _O_CREAT
 #define UV_FS_O_EXCL         _O_EXCL
+#define UV_FS_O_FILEMAP      0x20000000
 #define UV_FS_O_RANDOM       _O_RANDOM
 #define UV_FS_O_RDONLY       _O_RDONLY
 #define UV_FS_O_RDWR         _O_RDWR