growableArray.cpp revision 1472:c18cbe5936b8
1/* 2 * Copyright (c) 1997, 2005, 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 */ 24# include "incls/_precompiled.incl" 25# include "incls/_growableArray.cpp.incl" 26 27#ifdef ASSERT 28void GenericGrowableArray::set_nesting() { 29 if (on_stack()) { 30 _nesting = Thread::current()->resource_area()->nesting(); 31 } 32} 33 34void GenericGrowableArray::check_nesting() { 35 // Check for insidious allocation bug: if a GrowableArray overflows, the 36 // grown array must be allocated under the same ResourceMark as the original. 37 // Otherwise, the _data array will be deallocated too early. 38 if (on_stack() && 39 _nesting != Thread::current()->resource_area()->nesting()) { 40 fatal("allocation bug: GrowableArray could grow within nested ResourceMark"); 41 } 42} 43#endif 44 45void* GenericGrowableArray::raw_allocate(int elementSize) { 46 assert(_max >= 0, "integer overflow"); 47 size_t byte_size = elementSize * (size_t) _max; 48 if (on_stack()) { 49 return (void*)resource_allocate_bytes(byte_size); 50 } else if (on_C_heap()) { 51 return (void*)AllocateHeap(byte_size, "GrET in " __FILE__); 52 } else { 53 return _arena->Amalloc(byte_size); 54 } 55} 56