Mercurial > hg > truffle
annotate src/share/vm/utilities/growableArray.cpp @ 653:e55bcaf3a6a1
6819853: VM does not detect JDK which supports parallel class loaders
Reviewed-by: coleenp, pbk, xlu, alanb
author | acorn |
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date | Fri, 20 Mar 2009 11:23:24 -0400 |
parents | 83ef1482304c |
children | c18cbe5936b8 |
rev | line source |
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0 | 1 /* |
2 * Copyright 1997-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 # include "incls/_precompiled.incl" | |
25 # include "incls/_growableArray.cpp.incl" | |
26 | |
27 #ifdef ASSERT | |
28 void GenericGrowableArray::set_nesting() { | |
29 if (on_stack()) { | |
30 _nesting = Thread::current()->resource_area()->nesting(); | |
31 } | |
32 } | |
33 | |
34 void 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 | |
45 void* GenericGrowableArray::raw_allocate(int elementSize) { | |
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83ef1482304c
6806226: Signed integer overflow in growable array code causes JVM crash
jmasa
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46 assert(_max >= 0, "integer overflow"); |
83ef1482304c
6806226: Signed integer overflow in growable array code causes JVM crash
jmasa
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47 size_t byte_size = elementSize * (size_t) _max; |
0 | 48 if (on_stack()) { |
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49 return (void*)resource_allocate_bytes(byte_size); |
0 | 50 } else if (on_C_heap()) { |
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51 return (void*)AllocateHeap(byte_size, "GrET in " __FILE__); |
0 | 52 } else { |
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53 return _arena->Amalloc(byte_size); |
0 | 54 } |
55 } |