src/share/vm/oops/markOop.cpp

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   1 /*
   2  * Copyright (c) 1997, 2008, 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 # include "incls/_precompiled.incl"
  26 # include "incls/_markOop.cpp.incl"









  27 
  28 
  29 void markOopDesc::print_on(outputStream* st) const {
  30   if (is_locked()) {
  31     st->print("locked(0x%lx)->", value());
  32     markOop(*(markOop*)value())->print_on(st);
  33   } else {
  34     assert(is_unlocked() || has_bias_pattern(), "just checking");
  35     st->print("mark(");
  36     if (has_bias_pattern())  st->print("biased,");
  37     st->print("hash %#lx,", hash());
  38     st->print("age %d)", age());
  39   }
  40 }
  41 
  42 
  43 // Give advice about whether the oop that contains this markOop
  44 // should be cached or not.
  45 bool markOopDesc::should_not_be_cached() const {
  46   // the cast is because decode_pointer() isn't marked const


   1 /*
   2  * Copyright (c) 1997, 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 #include "precompiled.hpp"
  26 #include "oops/markOop.hpp"
  27 #ifdef TARGET_OS_FAMILY_linux
  28 # include "thread_linux.inline.hpp"
  29 #endif
  30 #ifdef TARGET_OS_FAMILY_solaris
  31 # include "thread_solaris.inline.hpp"
  32 #endif
  33 #ifdef TARGET_OS_FAMILY_windows
  34 # include "thread_windows.inline.hpp"
  35 #endif
  36 
  37 
  38 void markOopDesc::print_on(outputStream* st) const {
  39   if (is_locked()) {
  40     st->print("locked(0x%lx)->", value());
  41     markOop(*(markOop*)value())->print_on(st);
  42   } else {
  43     assert(is_unlocked() || has_bias_pattern(), "just checking");
  44     st->print("mark(");
  45     if (has_bias_pattern())  st->print("biased,");
  46     st->print("hash %#lx,", hash());
  47     st->print("age %d)", age());
  48   }
  49 }
  50 
  51 
  52 // Give advice about whether the oop that contains this markOop
  53 // should be cached or not.
  54 bool markOopDesc::should_not_be_cached() const {
  55   // the cast is because decode_pointer() isn't marked const