From ebcea0128c83e6ace0fe98ff6a01a315f0cde325 Mon Sep 17 00:00:00 2001
From: Paul Masurel <paul.masurel@gmail.com>
Date: Sun, 19 Mar 2017 11:09:15 +0900
Subject: [PATCH] Getting the FLAG from the winapi module.

---
 Cargo.toml                      | 6 +++---
 src/directory/mmap_directory.rs | 8 +++++---
 src/lib.rs                      | 3 +++
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 7df8882db..f6fd20cc2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,8 +24,6 @@ rustc-serialize = "0.3"
 log = "0.3.6"
 combine = "2.2"
 tempdir = "0.3"
-
-
 bincode = "0.5"
 libc = {version = "0.2.20", optional=true}
 num_cpus = "1.2"
@@ -37,10 +35,12 @@ uuid = { version = "0.4", features = ["v4", "rustc-serialize"] }
 chan = "0.1"
 version = "2"
 crossbeam = "0.2"
-
 futures = "0.1.9"
 futures-cpupool = "0.1.2"
 
+[target.'cfg(windows)'.dependencies]
+winapi = "*"
+
 [dev-dependencies]
 rand = "0.3"
 
diff --git a/src/directory/mmap_directory.rs b/src/directory/mmap_directory.rs
index 9b466f0dc..2f6224185 100644
--- a/src/directory/mmap_directory.rs
+++ b/src/directory/mmap_directory.rs
@@ -23,6 +23,10 @@ use std::sync::RwLock;
 use std::sync::Weak;
 use tempdir::TempDir;
 
+#[cfg(windows)]
+use winapi::winbase::FILE_FLAG_BACKUP_SEMANTICS;
+
+
 
 fn open_mmap(full_path: &PathBuf) -> result::Result<Option<Arc<Mmap>>, FileError> {
     let convert_file_error = |err: io::Error| {
@@ -231,11 +235,9 @@ impl MmapDirectory {
         #[cfg(windows)]
         {
             use std::os::windows::fs::OpenOptionsExt;
-            const FILE_FLAG_BACKUP_SEMANTICS: u32 = 0x02000000;
-
             open_opts.write(true)
                 .custom_flags(FILE_FLAG_BACKUP_SEMANTICS);
-        };
+        }
 
         let fd = try!(open_opts.open(&self.root_path));
         try!(fd.sync_all());
diff --git a/src/lib.rs b/src/lib.rs
index 81d9acc24..46fb75abc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -51,6 +51,9 @@ extern crate futures_cpupool;
 #[cfg(feature="simdcompression")]
 extern crate libc;
 
+#[cfg(windows)]
+extern crate winapi;
+
 #[cfg(test)] extern crate test;
 #[cfg(test)] extern crate rand;