1 /* 2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_MEMORY_SPACE_INLINE_DISP_HPP 26 #define SHARE_VM_MEMORY_SPACE_INLINE_DISP_HPP 27 28 #include "memory/space.hpp" 29 #include "oops/oop.inline.hpp" 30 #include "runtime/prefetch.hpp" 31 32 template <bool nv, typename OopClosureType> 33 void ContiguousSpace:: 34 cspace_oop_since_save_marks_iterate(OopClosureType* blk) { 35 HeapWord* t; 36 HeapWord* p = saved_mark_word(); 37 assert(p != NULL, "expected saved mark"); 38 39 const intx interval = PrefetchScanIntervalInBytes; 40 do { 41 t = top(); 42 while (p < t) { 43 Prefetch::write(p, interval); 44 debug_only(HeapWord* prev = p); 45 oop m = oop(p); 46 p += m->oop_iterate<nv>(blk); 47 } 48 } while (t < top()); 49 50 set_saved_mark_word(p); 51 } 52 53 #endif // SHARE_VM_MEMORY_SPACE_INLINE_DISP_HPP