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1 /* |
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2 * Copyright 2001-2006 Sun Microsystems, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 * |
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23 */ |
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24 |
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25 # include "incls/_precompiled.incl" |
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26 # include "incls/_immutableSpace.cpp.incl" |
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27 |
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28 void ImmutableSpace::initialize(MemRegion mr) { |
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29 HeapWord* bottom = mr.start(); |
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30 HeapWord* end = mr.end(); |
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31 |
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32 assert(Universe::on_page_boundary(bottom) && Universe::on_page_boundary(end), |
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33 "invalid space boundaries"); |
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34 |
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35 _bottom = bottom; |
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36 _end = end; |
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37 } |
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38 |
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39 void ImmutableSpace::oop_iterate(OopClosure* cl) { |
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40 HeapWord* obj_addr = bottom(); |
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41 HeapWord* t = end(); |
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42 // Could call objects iterate, but this is easier. |
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43 while (obj_addr < t) { |
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44 obj_addr += oop(obj_addr)->oop_iterate(cl); |
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45 } |
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46 } |
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47 |
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48 void ImmutableSpace::object_iterate(ObjectClosure* cl) { |
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49 HeapWord* p = bottom(); |
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50 while (p < end()) { |
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51 cl->do_object(oop(p)); |
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52 p += oop(p)->size(); |
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53 } |
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54 } |
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55 |
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56 #ifndef PRODUCT |
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57 |
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58 void ImmutableSpace::print_short() const { |
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59 tty->print(" space " SIZE_FORMAT "K, 100%% used", capacity_in_bytes() / K); |
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60 } |
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61 |
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62 void ImmutableSpace::print() const { |
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63 print_short(); |
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64 tty->print_cr(" [%#-6lx,%#-6lx)", bottom(), end()); |
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65 } |
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66 |
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67 #endif |
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68 |
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69 void ImmutableSpace::verify(bool allow_dirty) const { |
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70 HeapWord* p = bottom(); |
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71 HeapWord* t = end(); |
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72 HeapWord* prev_p = NULL; |
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73 while (p < t) { |
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74 oop(p)->verify(); |
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75 prev_p = p; |
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76 p += oop(p)->size(); |
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77 } |
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78 guarantee(p == end(), "end of last object must match end of space"); |
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79 } |