Mercurial > hg > truffle
annotate src/share/vm/utilities/growableArray.cpp @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | f95d63e2154a |
| children | f08d439fab8c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, 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" | |
| 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 | |
| 0 | 37 #ifdef ASSERT |
| 38 void GenericGrowableArray::set_nesting() { | |
| 39 if (on_stack()) { | |
| 40 _nesting = Thread::current()->resource_area()->nesting(); | |
| 41 } | |
| 42 } | |
| 43 | |
| 44 void GenericGrowableArray::check_nesting() { | |
| 45 // Check for insidious allocation bug: if a GrowableArray overflows, the | |
| 46 // grown array must be allocated under the same ResourceMark as the original. | |
| 47 // Otherwise, the _data array will be deallocated too early. | |
| 48 if (on_stack() && | |
| 49 _nesting != Thread::current()->resource_area()->nesting()) { | |
| 50 fatal("allocation bug: GrowableArray could grow within nested ResourceMark"); | |
| 51 } | |
| 52 } | |
| 53 #endif | |
| 54 | |
| 55 void* GenericGrowableArray::raw_allocate(int elementSize) { | |
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56 assert(_max >= 0, "integer overflow"); |
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57 size_t byte_size = elementSize * (size_t) _max; |
| 0 | 58 if (on_stack()) { |
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59 return (void*)resource_allocate_bytes(byte_size); |
| 0 | 60 } else if (on_C_heap()) { |
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61 return (void*)AllocateHeap(byte_size, "GrET in " __FILE__); |
| 0 | 62 } else { |
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63 return _arena->Amalloc(byte_size); |
| 0 | 64 } |
| 65 } |