src/hotspot/share/gc/shared/markBitMap.inline.hpp
changeset 51578 31b159f30fb2
child 53244 9807daeb47c4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/shared/markBitMap.inline.hpp	Wed Aug 29 20:15:09 2018 +0200
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_GC_SHARED_MARKBITMAP_INLINE_HPP
+#define SHARE_VM_GC_SHARED_MARKBITMAP_INLINE_HPP
+
+#include "gc/shared/collectedHeap.hpp"
+#include "gc/shared/markBitMap.hpp"
+#include "memory/memRegion.hpp"
+#include "memory/universe.hpp"
+#include "utilities/align.hpp"
+#include "utilities/bitMap.inline.hpp"
+
+inline HeapWord* MarkBitMap::get_next_marked_addr(const HeapWord* addr,
+                                                const HeapWord* limit) const {
+  assert(limit != NULL, "limit must not be NULL");
+  // Round addr up to a possible object boundary to be safe.
+  size_t const addr_offset = addr_to_offset(align_up(addr, HeapWordSize << _shifter));
+  size_t const limit_offset = addr_to_offset(limit);
+  size_t const nextOffset = _bm.get_next_one_offset(addr_offset, limit_offset);
+  return offset_to_addr(nextOffset);
+}
+
+inline void MarkBitMap::mark(HeapWord* addr) {
+  check_mark(addr);
+  _bm.set_bit(addr_to_offset(addr));
+}
+
+inline void MarkBitMap::clear(HeapWord* addr) {
+  check_mark(addr);
+  _bm.clear_bit(addr_to_offset(addr));
+}
+
+inline bool MarkBitMap::par_mark(HeapWord* addr) {
+  check_mark(addr);
+  return _bm.par_set_bit(addr_to_offset(addr));
+}
+
+inline bool MarkBitMap::par_mark(oop obj) {
+  return par_mark((HeapWord*) obj);
+}
+
+inline bool MarkBitMap::is_marked(oop obj) const{
+  return is_marked((HeapWord*) obj);
+}
+
+inline void MarkBitMap::clear(oop obj) {
+  clear((HeapWord*) obj);
+}
+
+#endif // SHARE_VM_GC_SHARED_MARKBITMAP_INLINE_HPP