hardwareClock fixed

diff --git a/include/anna/core/functions.hpp b/include/anna/core/functions.hpp
index 512499d..ebe12d8 100644 (file)
--- a/include/anna/core/functions.hpp
+++ b/include/anna/core/functions.hpp
@@ -441,7 +441,14 @@ struct functions {
   */
   static Microsecond hardwareClock() throw() {
     timespec ts;
-    clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts);
+    //clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts); // DONT works (original)
+    //clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts); // DONT works
+    //clock_gettime(CLOCK_MONOTONIC, &ts); // works
+      // Note that CLOCK_MONOTONIC is subject to discontinuities from system time
+      //  adjustment in Linux. CLOCK_MONOTONIC_RAW was defined to get around this
+      //  (gets hardware time not adjusted by NTP).
+    clock_gettime(CLOCK_MONOTONIC_RAW, &ts); // works
+
     Microsecond result((Microsecond::type_t)1000000 * ts.tv_sec + ts.tv_nsec / 1000);
     return result;
   }