1 /* 2 * Copyright (c) 1997, 2012, 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 25 #include "precompiled.hpp" 26 #include "memory/resourceArea.hpp" 27 #include "utilities/growableArray.hpp" 28 #ifdef TARGET_OS_FAMILY_linux 29 # include "thread_linux.inline.hpp" 30 #endif 31 #ifdef TARGET_OS_FAMILY_solaris 32 # include "thread_solaris.inline.hpp" 33 #endif 34 #ifdef TARGET_OS_FAMILY_windows 35 # include "thread_windows.inline.hpp" 36 #endif 37 #ifdef TARGET_OS_FAMILY_bsd 38 # include "thread_bsd.inline.hpp" 39 #endif 40 #ifdef ASSERT 41 void GenericGrowableArray::set_nesting() { 42 if (on_stack()) { 43 _nesting = Thread::current()->resource_area()->nesting(); 44 } 45 } 46 47 void GenericGrowableArray::check_nesting() { 48 // Check for insidious allocation bug: if a GrowableArray overflows, the 49 // grown array must be allocated under the same ResourceMark as the original. 50 // Otherwise, the _data array will be deallocated too early. 51 if (on_stack() && 52 _nesting != Thread::current()->resource_area()->nesting()) { 53 fatal("allocation bug: GrowableArray could grow within nested ResourceMark"); 54 } 55 } 56 #endif 57 58 void* GenericGrowableArray::raw_allocate(int elementSize) { 59 assert(_max >= 0, "integer overflow"); 60 size_t byte_size = elementSize * (size_t) _max; 61 if (on_stack()) { 62 return (void*)resource_allocate_bytes(byte_size); 63 } else if (on_C_heap()) { 64 return (void*)AllocateHeap(byte_size, _memflags); 65 } else { 66 return _arena->Amalloc(byte_size); 67 } 68 }