X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrd_format.h;h=1a58ebb6f8cf266b652aafff9871494da7c4030f;hb=e8615c408aaed016d27e4d0a3c21513409b4d6cf;hp=da0f1ba46c54329b78ab27a33c6a9608b0249403;hpb=a1fe8fd19bb4f558150e52c0624869667b739877;p=rrdtool.git

diff --git a/src/rrd_format.h b/src/rrd_format.h
index da0f1ba..1a58ebb 100644
--- a/src/rrd_format.h
+++ b/src/rrd_format.h
@@ -19,22 +19,12 @@
  *****************************************************************************/
 
 #define RRD_COOKIE    "RRD"
-#define RRD_VERSION   "0002"
+/* #define RRD_VERSION   "0002" */
+/* changed because microsecond precision requires another field */
+#define RRD_VERSION   "0003"
 #define FLOAT_COOKIE  8.642135E130
 
-#if defined(WIN32)
-#define DNAN          ((double)fmod(0.0,0.0))    
-#define DINF	      ((double)log(0.0))
-#else
-
-#define DNAN          ((double)(0.0/0.0))     /* we use a DNAN to
-					       * represent the UNKNOWN
-					       * */
-#define DINF          ((double)(1.0/0.0))     /* we use a DINF to
-					       * represent a value at the upper or
-					       * lower border of the graph ...
-					       * */
-#endif
+#include "rrd_nan_inf.h"
 
 typedef union unival { 
     unsigned long u_cnt; 
@@ -260,6 +250,8 @@ typedef struct rra_def_t {
 
 typedef struct live_head_t {
     time_t           last_up;            /* when was rrd last updated */
+    long	     last_up_usec;	 /* micro seconds part of the
+					    update timestamp. Always >= 0 */
 } live_head_t;