• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/vm/memory/space.inline.hpp@4b52137b07c9 (annotated)

src/share/vm/memory/space.inline.hpp

Wed, 01 May 2013 14:11:01 +0100

author

chegar

date

Wed, 01 May 2013 14:11:01 +0100

changeset 5246

4b52137b07c9

parent 4153

b9a9ed0f8eeb

child 6876

710a3c8b516e

child 6912

c49dcaf78a65

permissions

-rw-r--r--

Merge

duke@435	1	/*
mikael@4153	2	* Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_MEMORY_SPACE_INLINE_HPP
stefank@2314	26	#define SHARE_VM_MEMORY_SPACE_INLINE_HPP
stefank@2314	27
stefank@2314	28	#include "gc_interface/collectedHeap.hpp"
stefank@2314	29	#include "memory/space.hpp"
stefank@2314	30	#include "memory/universe.hpp"
stefank@2314	31	#include "runtime/safepoint.hpp"
stefank@2314	32
ysr@777	33	inline HeapWord* Space::block_start(const void* p) {
ysr@777	34	return block_start_const(p);
ysr@777	35	}
ysr@777	36
duke@435	37	inline HeapWord* OffsetTableContigSpace::allocate(size_t size) {
duke@435	38	HeapWord* res = ContiguousSpace::allocate(size);
duke@435	39	if (res != NULL) {
duke@435	40	_offsets.alloc_block(res, size);
duke@435	41	}
duke@435	42	return res;
duke@435	43	}
duke@435	44
duke@435	45	// Because of the requirement of keeping "_offsets" up to date with the
duke@435	46	// allocations, we sequentialize these with a lock. Therefore, best if
duke@435	47	// this is used for larger LAB allocations only.
duke@435	48	inline HeapWord* OffsetTableContigSpace::par_allocate(size_t size) {
duke@435	49	MutexLocker x(&_par_alloc_lock);
duke@435	50	// This ought to be just "allocate", because of the lock above, but that
duke@435	51	// ContiguousSpace::allocate asserts that either the allocating thread
duke@435	52	// holds the heap lock or it is the VM thread and we're at a safepoint.
duke@435	53	// The best I (dld) could figure was to put a field in ContiguousSpace
duke@435	54	// meaning "locking at safepoint taken care of", and set/reset that
duke@435	55	// here. But this will do for now, especially in light of the comment
duke@435	56	// above. Perhaps in the future some lock-free manner of keeping the
duke@435	57	// coordination.
duke@435	58	HeapWord* res = ContiguousSpace::par_allocate(size);
duke@435	59	if (res != NULL) {
duke@435	60	_offsets.alloc_block(res, size);
duke@435	61	}
duke@435	62	return res;
duke@435	63	}
duke@435	64
ysr@777	65	inline HeapWord*
ysr@777	66	OffsetTableContigSpace::block_start_const(const void* p) const {
duke@435	67	return _offsets.block_start(p);
duke@435	68	}
duke@435	69
stefank@2314	70	#endif // SHARE_VM_MEMORY_SPACE_INLINE_HPP