Memento: Add Memento_{takeRef,dropRef,reference} functions.

These work with MEMENTO_DETAILS to allow us to store the events where
reference counts change.

1 files changed, 6 insertions, 0 deletions

diff --git a/include/mupdf/memento.h b/include/mupdf/memento.h
index 903f00b7..e2ea3562 100644
--- a/include/mupdf/memento.h
+++ b/include/mupdf/memento.h
@@ -222,6 +222,9 @@ void *Memento_calloc(size_t, size_t);
 
 void Memento_info(void *addr);
 void Memento_listBLockInfo(void);
+void *Memento_takeRef(void *blk);
+void *Memento_dropRef(void *blk);
+void *Memento_reference(void *blk);
 
 #ifdef MEMENTO
 
@@ -259,6 +262,9 @@ void Memento_listBLockInfo(void);
 #define Memento_label(A,B)        (A)
 #define Memento_info(A)           do {} while (0)
 #define Memento_listBlockInfo()   do {} while (0)
+#define Memento_takeRef(A)        (A)
+#define Memento_dropRef(A)        (A)
+#define Memento_reference(A)      (A)
 
 #endif /* MEMENTO */