ldb_kv: Avoid memdup of database records in the case of base searches

[nivanova/samba-autobuild/.git] / lib / ldb / ldb_key_value / ldb_kv.h

diff --git a/lib/ldb/ldb_key_value/ldb_kv.h b/lib/ldb/ldb_key_value/ldb_kv.h
index 92106caae85a24c71ce0d08b17f069ac47edf817..778a8991bb8ae27b4d9767dab96ac540de169efc 100644 (file)
--- a/lib/ldb/ldb_key_value/ldb_kv.h
+++ b/lib/ldb/ldb_key_value/ldb_kv.h
@@ -13,6 +13,8 @@ typedef int (*ldb_kv_traverse_fn)(struct ldb_kv_private *ldb_kv,
                                  void *ctx);
 
 struct kv_db_ops {
+       uint32_t options;
+
        int (*store)(struct ldb_kv_private *ldb_kv,
                     struct ldb_val key,
                     struct ldb_val data,
@@ -175,6 +177,13 @@ struct ldb_kv_reindex_context {
 #define LDB_KV_GUID_SIZE 16
 #define LDB_KV_GUID_KEY_SIZE (LDB_KV_GUID_SIZE + sizeof(LDB_KV_GUID_KEY_PREFIX) - 1)
 
+/* LDB KV options */
+/*
+ * This allows pointers to be referenced after the callback to any variant of
+ * iterate or fetch_and_parse -- as long as an overall read lock is held.
+ */
+#define LDB_KV_OPTION_STABLE_READ_LOCK 0x00000001
+
 /*
  * The following definitions come from lib/ldb/ldb_key_value/ldb_kv_cache.c
  */