1 /*
   2  * Copyright (c) 2001, 2007, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   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 "incls/_precompiled.incl"
  26 #include "incls/_g1SATBCardTableModRefBS.cpp.incl"













  27 
  28 G1SATBCardTableModRefBS::G1SATBCardTableModRefBS(MemRegion whole_heap,
  29                                                  int max_covered_regions) :
  30     CardTableModRefBSForCTRS(whole_heap, max_covered_regions)
  31 {
  32   _kind = G1SATBCT;
  33 }
  34 
  35 
  36 void G1SATBCardTableModRefBS::enqueue(oop pre_val) {
  37   assert(pre_val->is_oop_or_null(true), "Error");
  38   if (!JavaThread::satb_mark_queue_set().is_active()) return;
  39   Thread* thr = Thread::current();
  40   if (thr->is_Java_thread()) {
  41     JavaThread* jt = (JavaThread*)thr;
  42     jt->satb_mark_queue().enqueue(pre_val);
  43   } else {
  44     MutexLocker x(Shared_SATB_Q_lock);
  45     JavaThread::satb_mark_queue_set().shared_satb_queue()->enqueue(pre_val);
  46   }

   1 /*
   2  * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   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 "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
  27 #include "gc_implementation/g1/heapRegion.hpp"
  28 #include "gc_implementation/g1/satbQueue.hpp"
  29 #include "runtime/mutexLocker.hpp"
  30 #include "runtime/thread.hpp"
  31 #ifdef TARGET_OS_FAMILY_linux
  32 # include "thread_linux.inline.hpp"
  33 #endif
  34 #ifdef TARGET_OS_FAMILY_solaris
  35 # include "thread_solaris.inline.hpp"
  36 #endif
  37 #ifdef TARGET_OS_FAMILY_windows
  38 # include "thread_windows.inline.hpp"
  39 #endif
  40 
  41 G1SATBCardTableModRefBS::G1SATBCardTableModRefBS(MemRegion whole_heap,
  42                                                  int max_covered_regions) :
  43     CardTableModRefBSForCTRS(whole_heap, max_covered_regions)
  44 {
  45   _kind = G1SATBCT;
  46 }
  47 
  48 
  49 void G1SATBCardTableModRefBS::enqueue(oop pre_val) {
  50   assert(pre_val->is_oop_or_null(true), "Error");
  51   if (!JavaThread::satb_mark_queue_set().is_active()) return;
  52   Thread* thr = Thread::current();
  53   if (thr->is_Java_thread()) {
  54     JavaThread* jt = (JavaThread*)thr;
  55     jt->satb_mark_queue().enqueue(pre_val);
  56   } else {
  57     MutexLocker x(Shared_SATB_Q_lock);
  58     JavaThread::satb_mark_queue_set().shared_satb_queue()->enqueue(pre_val);
  59   }