Increase vheap counter to Uint64

This will reduce the risk of integer wrapping in bin vheap counting.

The vheap size series will now use the golden ratio instead of doubling
and fibonacci sequences.

OTP #8730

1 files changed, 5 insertions, 1 deletions

diff --git a/erts/emulator/beam/erl_message.h b/erts/emulator/beam/erl_message.h
index 890af2675c..3815e420d2 100644
--- a/erts/emulator/beam/erl_message.h
+++ b/erts/emulator/beam/erl_message.h
@@ -37,9 +37,13 @@ struct erl_off_heap_header {
     struct erl_off_heap_header* next;
 };
 
+#define OH_OVERHEAD(oh, size) do { \
+    (oh)->overhead += size;        \
+} while(0)
+
 typedef struct erl_off_heap {
     struct erl_off_heap_header* first;
-    int overhead;     /* Administrative overhead (used to force GC). */
+    Uint64 overhead;     /* Administrative overhead (used to force GC). */
 } ErlOffHeap;
 
 #include "external.h"