Mercurial > hg > truffle
annotate src/share/vm/utilities/growableArray.cpp @ 7788:dbbe8ce3bfa5
commands: accept 'server0' as a vm, accept version number which have '-...' suffix (-internal, -ea...)
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Wed, 13 Feb 2013 18:33:54 +0100 |
parents | f34d701e952e |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "memory/resourceArea.hpp" | |
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27 #include "runtime/thread.inline.hpp" |
1972 | 28 #include "utilities/growableArray.hpp" |
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29 |
0 | 30 #ifdef ASSERT |
31 void GenericGrowableArray::set_nesting() { | |
32 if (on_stack()) { | |
33 _nesting = Thread::current()->resource_area()->nesting(); | |
34 } | |
35 } | |
36 | |
37 void GenericGrowableArray::check_nesting() { | |
38 // Check for insidious allocation bug: if a GrowableArray overflows, the | |
39 // grown array must be allocated under the same ResourceMark as the original. | |
40 // Otherwise, the _data array will be deallocated too early. | |
41 if (on_stack() && | |
42 _nesting != Thread::current()->resource_area()->nesting()) { | |
43 fatal("allocation bug: GrowableArray could grow within nested ResourceMark"); | |
44 } | |
45 } | |
46 #endif | |
47 | |
48 void* GenericGrowableArray::raw_allocate(int elementSize) { | |
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49 assert(_max >= 0, "integer overflow"); |
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50 size_t byte_size = elementSize * (size_t) _max; |
0 | 51 if (on_stack()) { |
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52 return (void*)resource_allocate_bytes(byte_size); |
0 | 53 } else if (on_C_heap()) { |
6197 | 54 return (void*)AllocateHeap(byte_size, _memflags); |
0 | 55 } else { |
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56 return _arena->Amalloc(byte_size); |
0 | 57 } |
58 } |