Revert "Remove gencache_[un]lock_entry"

This reverts commit 7a5a575ffe5196caecedc93970a25abfbe6f8059.
(This used to be commit 62e444dd50ae974c2ab9a553cdf7f188a8f2c538)

1 files changed, 25 insertions, 0 deletions

diff --git a/source3/lib/gencache.c b/source3/lib/gencache.c
index a55b2ab9ba..1b4342a62b 100644
--- a/source3/lib/gencache.c
+++ b/source3/lib/gencache.c
@@ -484,3 +484,28 @@ void gencache_iterate(void (*fn)(const char* key, const char *value, time_t time
 	
 	tdb_search_list_free(first_node);
 }
+
+/********************************************************************
+ lock a key
+********************************************************************/
+
+int gencache_lock_entry( const char *key )
+{
+	if (!gencache_init())
+		return -1;
+	
+	return tdb_lock_bystring(cache, key);
+}
+
+/********************************************************************
+ unlock a key
+********************************************************************/
+
+void gencache_unlock_entry( const char *key )
+{
+	if (!gencache_init())
+		return;
+	
+	tdb_unlock_bystring(cache, key);
+	return;
+}