jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp@0fbdb4381b99

6814575: Update copyright year
Summary: Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair

     1 /*

     2  * Copyright 2001-2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 // Inline functions for G1CollectedHeap

    27 inline HeapRegion*

    28 G1CollectedHeap::heap_region_containing(const void* addr) const {

    29   HeapRegion* hr = _hrs->addr_to_region(addr);

    30   // hr can be null if addr in perm_gen

    31   if (hr != NULL && hr->continuesHumongous()) {

    32     hr = hr->humongous_start_region();

    33   }

    34   return hr;

    35 }

    37 inline HeapRegion*

    38 G1CollectedHeap::heap_region_containing_raw(const void* addr) const {

    39   assert(_g1_reserved.contains(addr), "invariant");

    40   size_t index = ((intptr_t) addr - (intptr_t) _g1_reserved.start())

    41                                               >> HeapRegion::LogOfHRGrainBytes;

    42   HeapRegion* res = _hrs->at(index);

    43   assert(res == _hrs->addr_to_region(addr), "sanity");

    44   return res;

    45 }

    47 inline bool G1CollectedHeap::obj_in_cs(oop obj) {

    48   HeapRegion* r = _hrs->addr_to_region(obj);

    49   return r != NULL && r->in_collection_set();

    50 }

    52 inline HeapWord* G1CollectedHeap::attempt_allocation(size_t word_size,

    53                                               bool permit_collection_pause) {

    54   HeapWord* res = NULL;

    56   assert( SafepointSynchronize::is_at_safepoint() ||

    57           Heap_lock->owned_by_self(), "pre-condition of the call" );

    59   if (_cur_alloc_region != NULL) {

    61     // If this allocation causes a region to become non empty,

    62     // then we need to update our free_regions count.

    64     if (_cur_alloc_region->is_empty()) {

    65       res = _cur_alloc_region->allocate(word_size);

    66       if (res != NULL)

    67         _free_regions--;

    68     } else {

    69       res = _cur_alloc_region->allocate(word_size);

    70     }

    71   }

    72   if (res != NULL) {

    73     if (!SafepointSynchronize::is_at_safepoint()) {

    74       assert( Heap_lock->owned_by_self(), "invariant" );

    75       Heap_lock->unlock();

    76     }

    77     return res;

    78   }

    79   // attempt_allocation_slow will also unlock the heap lock when appropriate.

    80   return attempt_allocation_slow(word_size, permit_collection_pause);

    81 }

    83 inline RefToScanQueue* G1CollectedHeap::task_queue(int i) {

    84   return _task_queues->queue(i);

    85 }

    88 inline  bool G1CollectedHeap::isMarkedPrev(oop obj) const {

    89   return _cm->prevMarkBitMap()->isMarked((HeapWord *)obj);

    90 }

    92 inline bool G1CollectedHeap::isMarkedNext(oop obj) const {

    93   return _cm->nextMarkBitMap()->isMarked((HeapWord *)obj);

    94 }

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