1 files changed, 54 insertions, 0 deletions
diff --git a/host/lib/utils/system_time.cpp b/host/lib/utils/system_time.cpp
new file mode 100644
index 000000000..d371756bc
--- /dev/null
+++ b/host/lib/utils/system_time.cpp
@@ -0,0 +1,54 @@
+//
+// Copyright 2017 Ettus Research (National Instruments Corp.)
+//
+// SPDX-License-Identifier: GPL-3.0+
+//
+
+#include <uhd/utils/system_time.hpp>
+
+using namespace uhd;
+
+#ifdef HAVE_CLOCK_GETTIME
+#include <time.h>
+time_spec_t uhd::get_system_time(void){
+    timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts);
+    return time_spec_t(ts.tv_sec, ts.tv_nsec, 1e9);
+}
+#endif /* HAVE_CLOCK_GETTIME */
+
+
+#ifdef HAVE_MACH_ABSOLUTE_TIME
+#include <mach/mach_time.h>
+time_spec_t uhd::get_system_time(void){
+    mach_timebase_info_data_t info; mach_timebase_info(&info);
+    intmax_t nanosecs = mach_absolute_time()*info.numer/info.denom;
+    return time_spec_t::from_ticks(nanosecs, 1e9);
+}
+#endif /* HAVE_MACH_ABSOLUTE_TIME */
+
+
+#ifdef HAVE_QUERY_PERFORMANCE_COUNTER
+#include <Windows.h>
+time_spec_t uhd::get_system_time(void){
+    LARGE_INTEGER counts, freq;
+    QueryPerformanceCounter(&counts);
+    QueryPerformanceFrequency(&freq);
+    return time_spec_t::from_ticks(counts.QuadPart, double(freq.QuadPart));
+}
+#endif /* HAVE_QUERY_PERFORMANCE_COUNTER */
+
+
+#ifdef HAVE_MICROSEC_CLOCK
+#include <boost/date_time/posix_time/posix_time.hpp>
+namespace pt = boost::posix_time;
+time_spec_t uhd::get_system_time(void){
+    pt::ptime time_now = pt::microsec_clock::universal_time();
+    pt::time_duration time_dur = time_now - pt::from_time_t(0);
+    return time_spec_t(
+        time_t(time_dur.total_seconds()),
+        long(time_dur.fractional_seconds()),
+        double(pt::time_duration::ticks_per_second())
+    );
+}
+#endif /* HAVE_MICROSEC_CLOCK */
+