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src/share/vm/utilities/growableArray.cpp@dc1769738300 (annotated)

src/share/vm/utilities/growableArray.cpp

Tue, 24 Jul 2018 13:22:11 +0800

author

aoqi

date

Tue, 24 Jul 2018 13:22:11 +0800

changeset 9137

dc1769738300

parent 6876

710a3c8b516e

permissions

-rw-r--r--

#7048 added Loongson release info to hs_err crash files

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#include "precompiled.hpp"
aoqi@0	26	#include "memory/resourceArea.hpp"
aoqi@0	27	#include "runtime/thread.inline.hpp"
aoqi@0	28	#include "utilities/growableArray.hpp"
aoqi@0	29
aoqi@0	30	#ifdef ASSERT
aoqi@0	31	void GenericGrowableArray::set_nesting() {
aoqi@0	32	if (on_stack()) {
aoqi@0	33	_nesting = Thread::current()->resource_area()->nesting();
aoqi@0	34	}
aoqi@0	35	}
aoqi@0	36
aoqi@0	37	void GenericGrowableArray::check_nesting() {
aoqi@0	38	// Check for insidious allocation bug: if a GrowableArray overflows, the
aoqi@0	39	// grown array must be allocated under the same ResourceMark as the original.
aoqi@0	40	// Otherwise, the _data array will be deallocated too early.
aoqi@0	41	if (on_stack() &&
aoqi@0	42	_nesting != Thread::current()->resource_area()->nesting()) {
aoqi@0	43	fatal("allocation bug: GrowableArray could grow within nested ResourceMark");
aoqi@0	44	}
aoqi@0	45	}
aoqi@0	46	#endif
aoqi@0	47
aoqi@0	48	void* GenericGrowableArray::raw_allocate(int elementSize) {
aoqi@0	49	assert(_max >= 0, "integer overflow");
aoqi@0	50	size_t byte_size = elementSize * (size_t) _max;
aoqi@0	51	if (on_stack()) {
aoqi@0	52	return (void*)resource_allocate_bytes(byte_size);
aoqi@0	53	} else if (on_C_heap()) {
aoqi@0	54	return (void*)AllocateHeap(byte_size, _memflags);
aoqi@0	55	} else {
aoqi@0	56	return _arena->Amalloc(byte_size);
aoqi@0	57	}
aoqi@0	58	}