< prev index next >

src/share/vm/gc/shared/referenceProcessor.cpp

Print this page
rev 8362 : [mq]: hotspot


   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/javaClasses.hpp"
  27 #include "classfile/systemDictionary.hpp"
  28 #include "gc_implementation/shared/gcTimer.hpp"
  29 #include "gc_implementation/shared/gcTraceTime.hpp"
  30 #include "gc_interface/collectedHeap.hpp"
  31 #include "gc_interface/collectedHeap.inline.hpp"
  32 #include "memory/referencePolicy.hpp"
  33 #include "memory/referenceProcessor.hpp"
  34 #include "oops/oop.inline.hpp"
  35 #include "runtime/java.hpp"
  36 #include "runtime/jniHandles.hpp"
  37 
  38 ReferencePolicy* ReferenceProcessor::_always_clear_soft_ref_policy = NULL;
  39 ReferencePolicy* ReferenceProcessor::_default_soft_ref_policy      = NULL;
  40 jlong            ReferenceProcessor::_soft_ref_timestamp_clock = 0;
  41 
  42 void referenceProcessor_init() {
  43   ReferenceProcessor::init_statics();
  44 }
  45 
  46 void ReferenceProcessor::init_statics() {
  47   // We need a monotonically non-decreasing time in ms but
  48   // os::javaTimeMillis() does not guarantee monotonicity.
  49   jlong now = os::javaTimeNanos() / NANOSECS_PER_MILLISEC;
  50 
  51   // Initialize the soft ref timestamp clock.
  52   _soft_ref_timestamp_clock = now;
  53   // Also update the soft ref clock in j.l.r.SoftReference




   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/javaClasses.hpp"
  27 #include "classfile/systemDictionary.hpp"
  28 #include "gc/shared/collectedHeap.hpp"
  29 #include "gc/shared/collectedHeap.inline.hpp"
  30 #include "gc/shared/gcTimer.hpp"
  31 #include "gc/shared/gcTraceTime.hpp"
  32 #include "gc/shared/referencePolicy.hpp"
  33 #include "gc/shared/referenceProcessor.hpp"
  34 #include "oops/oop.inline.hpp"
  35 #include "runtime/java.hpp"
  36 #include "runtime/jniHandles.hpp"
  37 
  38 ReferencePolicy* ReferenceProcessor::_always_clear_soft_ref_policy = NULL;
  39 ReferencePolicy* ReferenceProcessor::_default_soft_ref_policy      = NULL;
  40 jlong            ReferenceProcessor::_soft_ref_timestamp_clock = 0;
  41 
  42 void referenceProcessor_init() {
  43   ReferenceProcessor::init_statics();
  44 }
  45 
  46 void ReferenceProcessor::init_statics() {
  47   // We need a monotonically non-decreasing time in ms but
  48   // os::javaTimeMillis() does not guarantee monotonicity.
  49   jlong now = os::javaTimeNanos() / NANOSECS_PER_MILLISEC;
  50 
  51   // Initialize the soft ref timestamp clock.
  52   _soft_ref_timestamp_clock = now;
  53   // Also update the soft ref clock in j.l.r.SoftReference


< prev index next >