stats: add version field to stat segment base header

[vpp.git] / src / vpp / stats / stat_segment.h

diff --git a/src/vpp/stats/stat_segment.h b/src/vpp/stats/stat_segment.h
index b9ffedf..113eb9a 100644 (file)
--- a/src/vpp/stats/stat_segment.h
+++ b/src/vpp/stats/stat_segment.h
@@ -70,11 +70,15 @@ typedef struct
 /* Default stat segment 32m */
 #define STAT_SEGMENT_DEFAULT_SIZE      (32<<20)
 
+/* Shared segment memory layout version */
+#define STAT_SEGMENT_VERSION           1
+
 /*
  * Shared header first in the shared memory segment.
  */
 typedef struct
 {
+  u64 version;
   atomic_int_fast64_t epoch;
   atomic_int_fast64_t in_progress;
   atomic_int_fast64_t directory_offset;