Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/shared/immutableSpace.hpp @ 12146:9758d9f36299
8021954: VM SIGSEGV during classloading on MacOS; hs_err_pid file produced
Summary: declare all user-defined operator new()s within Hotspot code with the empty throw() exception specification
Reviewed-by: coleenp, twisti, dholmes, hseigel, dcubed, kvn, ccheung
Contributed-by: lois.foltan@oracle.com
| author | coleenp |
|---|---|
| date | Thu, 29 Aug 2013 18:56:29 -0400 |
| parents | da91efe96a93 |
| children |
| rev | line source |
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| 0 | 1 /* |
| 6008 | 2 * Copyright (c) 2001, 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 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_IMMUTABLESPACE_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_IMMUTABLESPACE_HPP | |
| 27 | |
| 28 #include "memory/iterator.hpp" | |
| 29 | |
| 0 | 30 // An ImmutableSpace is a viewport into a contiguous range |
| 31 // (or subrange) of previously allocated objects. | |
| 32 | |
| 33 // Invariant: bottom() and end() are on page_size boundaries and | |
| 34 // bottom() <= end() | |
| 35 | |
| 6197 | 36 class ImmutableSpace: public CHeapObj<mtGC> { |
| 0 | 37 friend class VMStructs; |
| 38 protected: | |
| 39 HeapWord* _bottom; | |
| 40 HeapWord* _end; | |
| 41 | |
| 42 public: | |
| 43 ImmutableSpace() { _bottom = NULL; _end = NULL; } | |
| 44 HeapWord* bottom() const { return _bottom; } | |
| 45 HeapWord* end() const { return _end; } | |
| 46 | |
| 47 MemRegion region() const { return MemRegion(bottom(), end()); } | |
| 48 | |
| 49 // Initialization | |
| 50 void initialize(MemRegion mr); | |
| 51 | |
| 52 bool contains(const void* p) const { return _bottom <= p && p < _end; } | |
| 53 | |
| 54 // Size computations. Sizes are in bytes. | |
| 55 size_t capacity_in_bytes() const { return capacity_in_words() * HeapWordSize; } | |
| 56 | |
| 57 // Size computations. Sizes are in heapwords. | |
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58 size_t capacity_in_words() const { return pointer_delta(end(), bottom()); } |
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59 virtual size_t capacity_in_words(Thread*) const { return capacity_in_words(); } |
| 0 | 60 |
| 61 // Iteration. | |
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62 virtual void oop_iterate(ExtendedOopClosure* cl); |
| 0 | 63 virtual void object_iterate(ObjectClosure* cl); |
| 64 | |
| 65 // Debugging | |
| 66 virtual void print() const PRODUCT_RETURN; | |
| 67 virtual void print_short() const PRODUCT_RETURN; | |
| 6008 | 68 virtual void verify(); |
| 0 | 69 }; |
| 1972 | 70 |
| 71 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_IMMUTABLESPACE_HPP |