src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 2073
bb847e31b836
child 2315
631f79e71e90
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

     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  */
    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
    26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
    28 #include "gc_implementation/g1/concurrentMark.hpp"
    29 #include "gc_implementation/g1/g1CollectedHeap.hpp"
    30 #include "gc_implementation/g1/heapRegionSeq.hpp"
    31 #include "utilities/taskqueue.hpp"
    33 // Inline functions for G1CollectedHeap
    35 inline HeapRegion*
    36 G1CollectedHeap::heap_region_containing(const void* addr) const {
    37   HeapRegion* hr = _hrs->addr_to_region(addr);
    38   // hr can be null if addr in perm_gen
    39   if (hr != NULL && hr->continuesHumongous()) {
    40     hr = hr->humongous_start_region();
    41   }
    42   return hr;
    43 }
    45 inline HeapRegion*
    46 G1CollectedHeap::heap_region_containing_raw(const void* addr) const {
    47   assert(_g1_reserved.contains(addr), "invariant");
    48   size_t index = pointer_delta(addr, _g1_reserved.start(), 1)
    49                                         >> HeapRegion::LogOfHRGrainBytes;
    51   HeapRegion* res = _hrs->at(index);
    52   assert(res == _hrs->addr_to_region(addr), "sanity");
    53   return res;
    54 }
    56 inline bool G1CollectedHeap::obj_in_cs(oop obj) {
    57   HeapRegion* r = _hrs->addr_to_region(obj);
    58   return r != NULL && r->in_collection_set();
    59 }
    61 inline HeapWord* G1CollectedHeap::attempt_allocation(size_t word_size,
    62                                               bool permit_collection_pause) {
    63   HeapWord* res = NULL;
    65   assert( SafepointSynchronize::is_at_safepoint() ||
    66           Heap_lock->owned_by_self(), "pre-condition of the call" );
    68   // All humongous allocation requests should go through the slow path in
    69   // attempt_allocation_slow().
    70   if (!isHumongous(word_size) && _cur_alloc_region != NULL) {
    71     // If this allocation causes a region to become non empty,
    72     // then we need to update our free_regions count.
    74     if (_cur_alloc_region->is_empty()) {
    75       res = _cur_alloc_region->allocate(word_size);
    76       if (res != NULL)
    77         _free_regions--;
    78     } else {
    79       res = _cur_alloc_region->allocate(word_size);
    80     }
    82     if (res != NULL) {
    83       if (!SafepointSynchronize::is_at_safepoint()) {
    84         assert( Heap_lock->owned_by_self(), "invariant" );
    85         Heap_lock->unlock();
    86       }
    87       return res;
    88     }
    89   }
    90   // attempt_allocation_slow will also unlock the heap lock when appropriate.
    91   return attempt_allocation_slow(word_size, permit_collection_pause);
    92 }
    94 inline RefToScanQueue* G1CollectedHeap::task_queue(int i) const {
    95   return _task_queues->queue(i);
    96 }
    98 inline  bool G1CollectedHeap::isMarkedPrev(oop obj) const {
    99   return _cm->prevMarkBitMap()->isMarked((HeapWord *)obj);
   100 }
   102 inline bool G1CollectedHeap::isMarkedNext(oop obj) const {
   103   return _cm->nextMarkBitMap()->isMarked((HeapWord *)obj);
   104 }
   106 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP

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