Split out mdb_midl_xmerge, add MDB_IDL_ALLOCLEN

[openldap] / libraries / liblmdb / midl.h

diff --git a/libraries/liblmdb/midl.h b/libraries/liblmdb/midl.h
index 08616f452e114022c9e9f5600bf80f9435661e5d..a7f25026ce536eddb17c86be621ddfc8f9ee43f7 100644 (file)
--- a/libraries/liblmdb/midl.h
+++ b/libraries/liblmdb/midl.h
@@ -68,6 +68,9 @@ typedef MDB_ID *MDB_IDL;
 #define MDB_IDL_FIRST( ids )   ( (ids)[1] )
 #define MDB_IDL_LAST( ids )            ( (ids)[(ids)[0]] )
 
+       /** Current max length of an #mdb_midl_alloc()ed IDL */
+#define MDB_IDL_ALLOCLEN( ids )        ( (ids)[-1] )
+
        /** Append ID to IDL. The IDL must be big enough. */
 #define mdb_midl_xappend(idl, id) do { \
                MDB_ID *xidl = (idl), xlen = ++(xidl[0]); \
@@ -128,6 +131,12 @@ int mdb_midl_append_list( MDB_IDL *idp, MDB_IDL app );
         */
 int mdb_midl_append_range( MDB_IDL *idp, MDB_ID id, unsigned n );
 
+       /** Merge an IDL onto an IDL. The destination IDL must be big enough.
+        * @param[in] idl       The IDL to merge into.
+        * @param[in] merge     The IDL to merge.
+        */
+void mdb_midl_xmerge( MDB_IDL idl, MDB_IDL merge );
+
        /** Sort an IDL.
         * @param[in,out] ids   The IDL to sort.
         */