1 /*
   2  * Copyright (c) 2015, 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 #ifndef SHARE_VM_GC_PARALLEL_PSPARALLELCOMPACT_INLINE_HPP
  26 #define SHARE_VM_GC_PARALLEL_PSPARALLELCOMPACT_INLINE_HPP
  27 
  28 #include "gc/parallel/parallelScavengeHeap.hpp"
  29 #include "gc/parallel/psParallelCompact.hpp"
  30 #include "gc/shared/collectedHeap.hpp"
  31 #include "oops/klass.hpp"
  32 #include "oops/oop.inline.hpp"
  33 
  34 inline bool PSParallelCompact::mark_obj(oop obj) {
  35   const int obj_size = obj->size();
  36   if (mark_bitmap()->mark_obj(obj, obj_size)) {
  37     _summary_data.add_obj(obj, obj_size);
  38     return true;
  39   } else {
  40     return false;
  41   }
  42 }
  43 
  44 template <class T>
  45 inline void PSParallelCompact::adjust_pointer(T* p) {
  46   T heap_oop = oopDesc::load_heap_oop(p);
  47   if (!oopDesc::is_null(heap_oop)) {
  48     oop obj     = oopDesc::decode_heap_oop_not_null(heap_oop);
  49     assert(ParallelScavengeHeap::heap()->is_in(obj), "should be in heap");
  50 
  51     oop new_obj = (oop)summary_data().calc_new_pointer(obj);
  52     assert(new_obj != NULL,                    // is forwarding ptr?
  53            "should be forwarded");
  54     // Just always do the update unconditionally?
  55     if (new_obj != NULL) {
  56       assert(ParallelScavengeHeap::heap()->is_in_reserved(new_obj),
  57              "should be in object space");
  58       oopDesc::encode_store_heap_oop_not_null(p, new_obj);
  59     }
  60   }
  61 }
  62 
  63 template <typename T>
  64 void PSParallelCompact::AdjustPointerClosure::do_oop_nv(T* p) {
  65   adjust_pointer(p);
  66 }
  67 
  68 inline void PSParallelCompact::AdjustPointerClosure::do_oop(oop* p)       { do_oop_nv(p); }
  69 inline void PSParallelCompact::AdjustPointerClosure::do_oop(narrowOop* p) { do_oop_nv(p); }
  70 
  71 #endif // SHARE_VM_GC_PARALLEL_PSPARALLELCOMPACT_INLINE_HPP