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src/share/vm/utilities/growableArray.cpp@d2a62e0f25eb (annotated)

src/share/vm/utilities/growableArray.cpp

Thu, 28 Jun 2012 17:03:16 -0400

author

zgu

date

Thu, 28 Jun 2012 17:03:16 -0400

changeset 3900

d2a62e0f25eb

parent 3156

f08d439fab8c

child 4153

b9a9ed0f8eeb

permissions

-rw-r--r--

6995781: Native Memory Tracking (Phase 1)
7151532: DCmd for hotspot native memory tracking
Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd
Reviewed-by: acorn, coleenp, fparain

duke@435	1	/*
stefank@2314	2	* Copyright (c) 1997, 2010, 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	#include "precompiled.hpp"
stefank@2314	26	#include "memory/resourceArea.hpp"
stefank@2314	27	#include "utilities/growableArray.hpp"
stefank@2314	28	#ifdef TARGET_OS_FAMILY_linux
stefank@2314	29	# include "thread_linux.inline.hpp"
stefank@2314	30	#endif
stefank@2314	31	#ifdef TARGET_OS_FAMILY_solaris
stefank@2314	32	# include "thread_solaris.inline.hpp"
stefank@2314	33	#endif
stefank@2314	34	#ifdef TARGET_OS_FAMILY_windows
stefank@2314	35	# include "thread_windows.inline.hpp"
stefank@2314	36	#endif
never@3156	37	#ifdef TARGET_OS_FAMILY_bsd
never@3156	38	# include "thread_bsd.inline.hpp"
never@3156	39	#endif
duke@435	40	#ifdef ASSERT
duke@435	41	void GenericGrowableArray::set_nesting() {
duke@435	42	if (on_stack()) {
duke@435	43	_nesting = Thread::current()->resource_area()->nesting();
duke@435	44	}
duke@435	45	}
duke@435	46
duke@435	47	void GenericGrowableArray::check_nesting() {
duke@435	48	// Check for insidious allocation bug: if a GrowableArray overflows, the
duke@435	49	// grown array must be allocated under the same ResourceMark as the original.
duke@435	50	// Otherwise, the _data array will be deallocated too early.
duke@435	51	if (on_stack() &&
duke@435	52	_nesting != Thread::current()->resource_area()->nesting()) {
duke@435	53	fatal("allocation bug: GrowableArray could grow within nested ResourceMark");
duke@435	54	}
duke@435	55	}
duke@435	56	#endif
duke@435	57
duke@435	58	void* GenericGrowableArray::raw_allocate(int elementSize) {
jmasa@1031	59	assert(_max >= 0, "integer overflow");
jmasa@1031	60	size_t byte_size = elementSize * (size_t) _max;
duke@435	61	if (on_stack()) {
jmasa@1031	62	return (void*)resource_allocate_bytes(byte_size);
duke@435	63	} else if (on_C_heap()) {
zgu@3900	64	return (void*)AllocateHeap(byte_size, _memflags);
duke@435	65	} else {
jmasa@1031	66	return _arena->Amalloc(byte_size);
duke@435	67	}
duke@435	68	}