src: expose Windows-only fs open flags

Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>

Author: PickBas

doc/api/fs.md

@@ -8767,10 +8767,36 @@ The following constants are meant for use with `fs.open()`.
     is available on Windows operating systems only. On other operating systems,
     this flag is ignored.</td>
   </tr>
+  <tr>
+    <td><code>UV_FS_O_TEMPORARY</code></td>
+    <td>When set, the file is deleted automatically when the last handle to it
+    is closed. This flag is available on Windows operating systems only. On
+    other operating systems, this flag is ignored.</td>
+  </tr>
+  <tr>
+    <td><code>UV_FS_O_SHORT_LIVED</code></td>
+    <td>Hint that the file is short-lived, so the system avoids flushing it to
+    disk when possible. This flag is available on Windows operating systems
+    only. On other operating systems, this flag is ignored.</td>
+  </tr>
+  <tr>
+    <td><code>UV_FS_O_SEQUENTIAL</code></td>
+    <td>Hint that the file is accessed sequentially from beginning to end, to
+    optimize caching. This flag is available on Windows operating systems only.
+    On other operating systems, this flag is ignored.</td>
+  </tr>
+  <tr>
+    <td><code>UV_FS_O_RANDOM</code></td>
+    <td>Hint that the file is accessed randomly, to optimize caching. This flag
+    is available on Windows operating systems only. On other operating systems,
+    this flag is ignored.</td>
+  </tr>
 </table>
 
 On Windows, only `O_APPEND`, `O_CREAT`, `O_EXCL`, `O_RDONLY`, `O_RDWR`,
-`O_TRUNC`, `O_WRONLY`, and `UV_FS_O_FILEMAP` are available.
+`O_TRUNC`, `O_WRONLY`, `UV_FS_O_FILEMAP`, `UV_FS_O_TEMPORARY`,
+`UV_FS_O_SHORT_LIVED`, `UV_FS_O_SEQUENTIAL`, and `UV_FS_O_RANDOM` are
+available.
 
 ##### File type constants
 

src/node_constants.cc

@@ -1137,7 +1137,12 @@ void DefineFsConstants(Local<Object> target) {
   NODE_DEFINE_CONSTANT(target, O_EXCL);
 #endif
 
-NODE_DEFINE_CONSTANT(target, UV_FS_O_FILEMAP);
+  // Windows-only open flags honored by libuv. They are 0 on other platforms.
+  NODE_DEFINE_CONSTANT(target, UV_FS_O_FILEMAP);
+  NODE_DEFINE_CONSTANT(target, UV_FS_O_TEMPORARY);
+  NODE_DEFINE_CONSTANT(target, UV_FS_O_SHORT_LIVED);
+  NODE_DEFINE_CONSTANT(target, UV_FS_O_SEQUENTIAL);
+  NODE_DEFINE_CONSTANT(target, UV_FS_O_RANDOM);
 
 #ifdef O_NOCTTY
   NODE_DEFINE_CONSTANT(target, O_NOCTTY);

test/parallel/test-fs-constants.js

@@ -35,6 +35,10 @@ const knownFsConstantNames = [
   'O_CREAT',
   'O_EXCL',
   'UV_FS_O_FILEMAP',
+  'UV_FS_O_TEMPORARY',
+  'UV_FS_O_SHORT_LIVED',
+  'UV_FS_O_SEQUENTIAL',
+  'UV_FS_O_RANDOM',
   'O_NOCTTY',
   'O_TRUNC',
   'O_APPEND',