--- a/hotspot/src/os/windows/vm/os_windows.cpp Wed Jan 28 09:27:49 2015 +0100
+++ b/hotspot/src/os/windows/vm/os_windows.cpp Wed Jan 28 17:52:48 2015 +0100
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -839,6 +839,12 @@
return (a - offset()) / 10000;
}
+// Returns time ticks in (10th of micro seconds)
+jlong windows_to_time_ticks(FILETIME wt) {
+ jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime);
+ return (a - offset());
+}
+
FILETIME java_to_windows_time(jlong l) {
jlong a = (l * 10000) + offset();
FILETIME result;
@@ -874,6 +880,15 @@
}
}
+void os::javaTimeSystemUTC(jlong &seconds, jlong &nanos) {
+ FILETIME wt;
+ GetSystemTimeAsFileTime(&wt);
+ jlong ticks = windows_to_time_ticks(wt); // 10th of micros
+ jlong secs = jlong(ticks / 10000000); // 10000 * 1000
+ seconds = secs;
+ nanos = jlong(ticks - (secs*10000000)) * 100;
+}
+
jlong os::javaTimeNanos() {
if (!win32::_has_performance_count) {
return javaTimeMillis() * NANOSECS_PER_MILLISEC; // the best we can do.