session CHANGE use monotonic clock where possible
Fixes #43
diff --git a/src/session_p.h b/src/session_p.h
index a52f396..62e07ee 100644
--- a/src/session_p.h
+++ b/src/session_p.h
@@ -455,7 +455,9 @@
int pthread_mutex_timedlock(pthread_mutex_t *mutex, const struct timespec *abstime);
#endif
-int nc_gettimespec(struct timespec *ts);
+int nc_gettimespec_mono(struct timespec *ts);
+
+int nc_gettimespec_real(struct timespec *ts);
int32_t nc_difftimespec(const struct timespec *ts1, const struct timespec *ts2);