Initial load

hotspot/src/share/vm/memory/blockOffsetTable.inline.hpp

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2000-2002 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+//////////////////////////////////////////////////////////////////////////
+// BlockOffsetTable inlines
+//////////////////////////////////////////////////////////////////////////
+inline HeapWord* BlockOffsetTable::block_start(const void* addr) const {
+  if (addr >= _bottom && addr < _end) {
+    return block_start_unsafe(addr);
+  } else {
+    return NULL;
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////
+// BlockOffsetSharedArray inlines
+//////////////////////////////////////////////////////////////////////////
+inline size_t BlockOffsetSharedArray::index_for(const void* p) const {
+  char* pc = (char*)p;
+  assert(pc >= (char*)_reserved.start() &&
+         pc <  (char*)_reserved.end(),
+         "p not in range.");
+  size_t delta = pointer_delta(pc, _reserved.start(), sizeof(char));
+  size_t result = delta >> LogN;
+  assert(result < _vs.committed_size(), "bad index from address");
+  return result;
+}
+
+inline HeapWord* BlockOffsetSharedArray::address_for_index(size_t index) const {
+  assert(index < _vs.committed_size(), "bad index");
+  HeapWord* result = _reserved.start() + (index << LogN_words);
+  assert(result >= _reserved.start() && result < _reserved.end(),
+         "bad address from index");
+  return result;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+// BlockOffsetArrayNonContigSpace inlines
+//////////////////////////////////////////////////////////////////////////
+inline void BlockOffsetArrayNonContigSpace::freed(HeapWord* blk_start,
+                                                  HeapWord* blk_end) {
+  // Verify that the BOT shows [blk_start, blk_end) to be one block.
+  verify_single_block(blk_start, blk_end);
+  // adjust _unallocated_block upward or downward
+  // as appropriate
+  if (BlockOffsetArrayUseUnallocatedBlock) {
+    assert(_unallocated_block <= _end,
+           "Inconsistent value for _unallocated_block");
+    if (blk_end >= _unallocated_block && blk_start <= _unallocated_block) {
+      // CMS-specific note: a block abutting _unallocated_block to
+      // its left is being freed, a new block is being added or
+      // we are resetting following a compaction
+      _unallocated_block = blk_start;
+    }
+  }
+}