jdk-sandbox: hotspot/src/share/vm/memory/barrierSet.cpp@30d1c247fc25 (annotated)

1374 4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1	/*
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	2	* Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	4	*
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	5	* This code is free software; you can redistribute it and/or modify it
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	6	* under the terms of the GNU General Public License version 2 only, as
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	7	* published by the Free Software Foundation.
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	8	*
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	9	* This code is distributed in the hope that it will be useful, but WITHOUT
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	12	* version 2 for more details (a copy is included in the LICENSE file that
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	13	* accompanied this code).
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	14	*
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	15	* You should have received a copy of the GNU General Public License version
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	16	* 2 along with this work; if not, write to the Free Software Foundation,
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	18	*
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	20	* CA 95054 USA or visit www.sun.com if you need additional information or
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	21	* have any questions.
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	22	*
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	23	*/
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	24
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	25	# include "incls/_precompiled.incl"
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	26	# include "incls/_barrierSet.cpp.incl"
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	27
3262 30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	28	// count is number of array elements being written
1374 4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	29	void BarrierSet::static_write_ref_array_pre(HeapWord* start, size_t count) {
3262 30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	30	assert(count <= (size_t)max_intx, "count too large");
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	31	#if 0
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	32	warning("Pre: \t" INTPTR_FORMAT "[" SIZE_FORMAT "]\t",
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	33	start, count);
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	34	#endif
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	35	if (UseCompressedOops) {
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	36	Universe::heap()->barrier_set()->write_ref_array_pre((narrowOop*)start, (int)count);
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	37	} else {
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	38	Universe::heap()->barrier_set()->write_ref_array_pre( (oop*)start, (int)count);
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	39	}
1374 4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	40	}
4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	41
3262 30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	42	// count is number of array elements being written
1374 4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	43	void BarrierSet::static_write_ref_array_post(HeapWord* start, size_t count) {
3262 30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	44	assert(count <= (size_t)max_intx, "count too large");
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	45	HeapWord* end = start + objArrayOopDesc::array_size((int)count);
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	46	#if 0
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	47	warning("Post:\t" INTPTR_FORMAT "[" SIZE_FORMAT "] : [" INTPTR_FORMAT","INTPTR_FORMAT")\t",
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	48	start, count, start, end);
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	49	#endif
30d1c247fc25 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 1374 diff changeset	50	Universe::heap()->barrier_set()->write_ref_array_work(MemRegion(start, end));
1374 4c24294029a9 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	51	}

author	ysr
	Tue, 14 Jul 2009 15:40:39 -0700
changeset 3262	30d1c247fc25
parent 1374	4c24294029a9
child 4461	c17c526d36ef
permissions	-rw-r--r--