8157175: GetNanoTimeAdjustment.java fails with excessive adjustment error
Reviewed-by: dcubed, gziemski
--- a/hotspot/src/os/solaris/vm/os_solaris.cpp Tue May 24 12:42:43 2016 -0500
+++ b/hotspot/src/os/solaris/vm/os_solaris.cpp Wed May 25 16:23:15 2016 -0400
@@ -1355,29 +1355,20 @@
return (double)gethrvtime() / (double)hrtime_hz;
}
-// in-memory timestamp support - has update accuracy of 1ms
-typedef void (*_get_nsec_fromepoch_func_t)(hrtime_t*);
-static _get_nsec_fromepoch_func_t _get_nsec_fromepoch = NULL;
-
// Must return millis since Jan 1 1970 for JVM_CurrentTimeMillis
jlong os::javaTimeMillis() {
- if (_get_nsec_fromepoch != NULL) {
- hrtime_t now;
- _get_nsec_fromepoch(&now);
- return now / NANOSECS_PER_MILLISEC;
- }
- else {
- timeval t;
- if (gettimeofday(&t, NULL) == -1) {
- fatal("os::javaTimeMillis: gettimeofday (%s)", os::strerror(errno));
- }
- return jlong(t.tv_sec) * 1000 + jlong(t.tv_usec) / 1000;
- }
-}
-
+ timeval t;
+ if (gettimeofday(&t, NULL) == -1) {
+ fatal("os::javaTimeMillis: gettimeofday (%s)", os::strerror(errno));
+ }
+ return jlong(t.tv_sec) * 1000 + jlong(t.tv_usec) / 1000;
+}
+
+// Must return seconds+nanos since Jan 1 1970. This must use the same
+// time source as javaTimeMillis and can't use get_nsec_fromepoch as
+// we need better than 1ms accuracy
void os::javaTimeSystemUTC(jlong &seconds, jlong &nanos) {
timeval t;
- // can't use get_nsec_fromepoch here as we need better accuracy than 1ms
if (gettimeofday(&t, NULL) == -1) {
fatal("os::javaTimeSystemUTC: gettimeofday (%s)", os::strerror(errno));
}
@@ -4447,9 +4438,6 @@
if (handle != NULL) {
Solaris::_pthread_setname_np = // from 11.3
(Solaris::pthread_setname_np_func_t)dlsym(handle, "pthread_setname_np");
-
- _get_nsec_fromepoch = // from 11.3.6
- (_get_nsec_fromepoch_func_t) dlsym(handle, "get_nsec_fromepoch");
}
}