From e349f2c0a370e4dfd09ae51c2cae4db08a834ad5 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Thu, 4 Oct 2018 15:03:03 +0200
Subject: Use BSD instead of POSIX file locks

POSIX file locks are essentially incompatible with multithreading. BSD
locks have much saner semantics. We need this now that there can be
multiple concurrent LocalStore::buildPaths() invocations.
---
 src/libstore/local-store.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/libstore/local-store.hh')

diff --git a/src/libstore/local-store.hh b/src/libstore/local-store.hh
index 6b655647b031..af8b84bf5d73 100644
--- a/src/libstore/local-store.hh
+++ b/src/libstore/local-store.hh
@@ -263,7 +263,7 @@ private:
     bool isActiveTempFile(const GCState & state,
         const Path & path, const string & suffix);
 
-    int openGCLock(LockType lockType);
+    AutoCloseFD openGCLock(LockType lockType);
 
     void findRoots(const Path & path, unsigned char type, Roots & roots);
 
-- 
cgit 1.4.1