annotate src/share/vm/utilities/growableArray.cpp @ 1552:c18cbe5936b8

6941466: Oracle rebranding changes for Hotspot repositories Summary: Change all the Sun copyrights to Oracle copyright Reviewed-by: ohair
author trims
date Thu, 27 May 2010 19:08:38 -0700
parents 83ef1482304c
children f95d63e2154a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 596
diff changeset
2 * Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 596
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 596
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 596
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24 # include "incls/_precompiled.incl"
a61af66fc99e Initial load
duke
parents:
diff changeset
25 # include "incls/_growableArray.cpp.incl"
a61af66fc99e Initial load
duke
parents:
diff changeset
26
a61af66fc99e Initial load
duke
parents:
diff changeset
27 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
28 void GenericGrowableArray::set_nesting() {
a61af66fc99e Initial load
duke
parents:
diff changeset
29 if (on_stack()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
30 _nesting = Thread::current()->resource_area()->nesting();
a61af66fc99e Initial load
duke
parents:
diff changeset
31 }
a61af66fc99e Initial load
duke
parents:
diff changeset
32 }
a61af66fc99e Initial load
duke
parents:
diff changeset
33
a61af66fc99e Initial load
duke
parents:
diff changeset
34 void GenericGrowableArray::check_nesting() {
a61af66fc99e Initial load
duke
parents:
diff changeset
35 // Check for insidious allocation bug: if a GrowableArray overflows, the
a61af66fc99e Initial load
duke
parents:
diff changeset
36 // grown array must be allocated under the same ResourceMark as the original.
a61af66fc99e Initial load
duke
parents:
diff changeset
37 // Otherwise, the _data array will be deallocated too early.
a61af66fc99e Initial load
duke
parents:
diff changeset
38 if (on_stack() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
39 _nesting != Thread::current()->resource_area()->nesting()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
40 fatal("allocation bug: GrowableArray could grow within nested ResourceMark");
a61af66fc99e Initial load
duke
parents:
diff changeset
41 }
a61af66fc99e Initial load
duke
parents:
diff changeset
42 }
a61af66fc99e Initial load
duke
parents:
diff changeset
43 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
44
a61af66fc99e Initial load
duke
parents:
diff changeset
45 void* GenericGrowableArray::raw_allocate(int elementSize) {
596
83ef1482304c 6806226: Signed integer overflow in growable array code causes JVM crash
jmasa
parents: 0
diff changeset
46 assert(_max >= 0, "integer overflow");
83ef1482304c 6806226: Signed integer overflow in growable array code causes JVM crash
jmasa
parents: 0
diff changeset
47 size_t byte_size = elementSize * (size_t) _max;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
48 if (on_stack()) {
596
83ef1482304c 6806226: Signed integer overflow in growable array code causes JVM crash
jmasa
parents: 0
diff changeset
49 return (void*)resource_allocate_bytes(byte_size);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
50 } else if (on_C_heap()) {
596
83ef1482304c 6806226: Signed integer overflow in growable array code causes JVM crash
jmasa
parents: 0
diff changeset
51 return (void*)AllocateHeap(byte_size, "GrET in " __FILE__);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
52 } else {
596
83ef1482304c 6806226: Signed integer overflow in growable array code causes JVM crash
jmasa
parents: 0
diff changeset
53 return _arena->Amalloc(byte_size);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
54 }
a61af66fc99e Initial load
duke
parents:
diff changeset
55 }