From 12beb22c1db0d17aef02e6ae732f219ff817ee76 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Tue, 3 Sep 2019 19:51:20 +0200
Subject: [PATCH] db/update/VirtualDirectory: add
 LockMakeVirtualDirectoryIfModified()

---
 src/db/update/VirtualDirectory.cxx | 12 ++++++++++++
 src/db/update/Walk.hxx             |  5 +++++
 2 files changed, 17 insertions(+)

diff --git a/src/db/update/VirtualDirectory.cxx b/src/db/update/VirtualDirectory.cxx
index 5183374c5..52e03e63c 100644
--- a/src/db/update/VirtualDirectory.cxx
+++ b/src/db/update/VirtualDirectory.cxx
@@ -18,6 +18,7 @@
  */
 
 #include "Walk.hxx"
+#include "db/DatabaseLock.hxx"
 #include "db/plugins/simple/Directory.hxx"
 #include "storage/FileInfo.hxx"
 
@@ -49,3 +50,14 @@ UpdateWalk::MakeVirtualDirectoryIfModified(Directory &parent, const char *name,
 	directory->device = virtual_device;
 	return directory;
 }
+
+Directory *
+UpdateWalk::LockMakeVirtualDirectoryIfModified(Directory &parent,
+					       const char *name,
+					       const StorageFileInfo &info,
+					       unsigned virtual_device) noexcept
+{
+	const ScopeDatabaseLock protect;
+	return MakeVirtualDirectoryIfModified(parent, name,
+					      info, virtual_device);
+}
diff --git a/src/db/update/Walk.hxx b/src/db/update/Walk.hxx
index ac7a5bd5b..e54e398b9 100644
--- a/src/db/update/Walk.hxx
+++ b/src/db/update/Walk.hxx
@@ -150,6 +150,11 @@ private:
 						  const StorageFileInfo &info,
 						  unsigned virtual_device) noexcept;
 
+	Directory *LockMakeVirtualDirectoryIfModified(Directory &parent,
+						      const char *name,
+						      const StorageFileInfo &info,
+						      unsigned virtual_device) noexcept;
+
 	Directory *DirectoryMakeChildChecked(Directory &parent,
 					     const char *uri_utf8,
 					     const char *name_utf8) noexcept;