src/os/solaris/vm/os_solaris.cpp

rev 2870 : 7117303: VM uses non-monotonic time source and complains that it is non-monotonic
Summary: Replaces calls to os::javaTimeMillis(), which does not guarantee montonicity, in GC code to os::javaTimeNanos() with a suitable conversion factor. os::javaTimeNanos is guaranteed monotonic if the underlying platform provides a monotonic timesource. Changes in OS files are to make use of the newly defined constants in globalDefinitions.hpp.
Reviewed-by: dholmes

*** 1672,1682 ****
    void* r = NULL;
    return thr_getspecific((thread_key_t)index, &r) != 0 ? NULL : r;
  }
  
  
- const int NANOSECS_PER_MILLISECS = 1000000;
  // gethrtime can move backwards if read from one cpu and then a different cpu
  // getTimeNanos is guaranteed to not move backward on Solaris
  // local spinloop created as faster for a CAS on an int than
  // a CAS on a 64bit jlong. Also Atomic::cmpxchg for jlong is not
  // supported on sparc v8 or pre supports_cx8 intel boxes.
--- 1672,1681 ----
*** 1801,1811 ****
  
  // Used internally for comparisons only
  // getTimeMillis guaranteed to not move backwards on Solaris
  jlong getTimeMillis() {
    jlong nanotime = getTimeNanos();
!   return (jlong)(nanotime / NANOSECS_PER_MILLISECS);
  }
  
  // Must return millis since Jan 1 1970 for JVM_CurrentTimeMillis
  jlong os::javaTimeMillis() {
    timeval t;
--- 1800,1810 ----
  
  // Used internally for comparisons only
  // getTimeMillis guaranteed to not move backwards on Solaris
  jlong getTimeMillis() {
    jlong nanotime = getTimeNanos();
!   return (jlong)(nanotime / NANOSECS_PER_MILLISEC);
  }
  
  // Must return millis since Jan 1 1970 for JVM_CurrentTimeMillis
  jlong os::javaTimeMillis() {
    timeval t;
*** 6062,6075 ****
   * on the condvar. Contention seen when trying to park implies that someone
   * is unparking you, so don't wait. And spurious returns are fine, so there
   * is no need to track notifications.
   */
  
- #define NANOSECS_PER_SEC 1000000000
- #define NANOSECS_PER_MILLISEC 1000000
  #define MAX_SECS 100000000
- 
  /*
   * This code is common to linux and solaris and will be moved to a
   * common place in dolphin.
   *
   * The passed in time value is either a relative time in nanoseconds
--- 6061,6071 ----