From 414f810c7c1d9aedeaa45e0998537395e7f4a907 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Smr=C5=BE?= <roman.smrz@seznam.cz>
Date: Sat, 29 Jun 2024 16:39:57 +0200
Subject: Move platform-specific code to separate directory

---
 src/unix/Erebos/Storage/Platform.hs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/unix/Erebos/Storage/Platform.hs

(limited to 'src/unix/Erebos')

diff --git a/src/unix/Erebos/Storage/Platform.hs b/src/unix/Erebos/Storage/Platform.hs
new file mode 100644
index 0000000..2198f61
--- /dev/null
+++ b/src/unix/Erebos/Storage/Platform.hs
@@ -0,0 +1,20 @@
+{-# LANGUAGE CPP #-}
+
+module Erebos.Storage.Platform (
+    createFileExclusive,
+) where
+
+import System.IO
+import System.Posix.Files
+import System.Posix.IO
+
+createFileExclusive :: FilePath -> IO Handle
+createFileExclusive path = fdToHandle =<< do
+#if MIN_VERSION_unix(2,8,0)
+    openFd path WriteOnly defaultFileFlags
+        { creat = Just $ unionFileModes ownerReadMode ownerWriteMode
+        , exclusive = True
+        }
+#else
+    openFd path WriteOnly (Just $ unionFileModes ownerReadMode ownerWriteMode) (defaultFileFlags { exclusive = True })
+#endif
-- 
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