Update README.md

diff --git a/README.md b/README.md
index 68721dd34ece43a495599c9fe23788457da185e0..962149cef9d0670ecd8c4f0d860785c34fe81333 100644 (file)
--- a/README.md
+++ b/README.md
@@ -14,6 +14,7 @@ struct shm_structure {
   char master_clock_ip[64];  // the IP of the current master clock
   uint64_t local_time;       // the time when the offset was calculated
   uint64_t local_to_master_time_offset; // add this to the local time to get master clock time
+  uint64_t master_clock_start_time;     // this is when the master clock became master
 };
 ```