Mercurial > hg > graal-compiler

view src/share/vm/runtime/threadLocalStorage.hpp @ 2149:7e37af9d69ef

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7011379: G1: overly long concurrent marking cycles Summary: This changeset introduces filtering of SATB buffers at the point when they are about to be enqueued. If this filtering clears enough entries on each buffer, the buffer can then be re-used and not enqueued. This cuts down the number of SATB buffers that need to be processed by the concurrent marking threads. Reviewed-by: johnc, ysr
author tonyp
date Wed, 19 Jan 2011 09:35:17 -0500
parents f95d63e2154a
children b92c45f2bc75
line wrap: on
line source

/*
 * Copyright (c) 1997, 2010, 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_RUNTIME_THREADLOCALSTORAGE_HPP
#define SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP

#include "gc_implementation/shared/gcUtil.hpp"
#include "runtime/os.hpp"
#include "utilities/top.hpp"

// Interface for thread local storage

// Fast variant of ThreadLocalStorage::get_thread_slow
extern "C" Thread*   get_thread();

// Get raw thread id: e.g., %g7 on sparc, fs or gs on x86
extern "C" uintptr_t _raw_thread_id();

class ThreadLocalStorage : AllStatic {
 public:
  static void    set_thread(Thread* thread);
  static Thread* get_thread_slow();
  static void    invalidate_all() { pd_invalidate_all(); }

  // Machine dependent stuff
#ifdef TARGET_OS_ARCH_linux_x86
# include "threadLS_linux_x86.hpp"
#endif
#ifdef TARGET_OS_ARCH_linux_sparc
# include "threadLS_linux_sparc.hpp"
#endif
#ifdef TARGET_OS_ARCH_linux_zero
# include "threadLS_linux_zero.hpp"
#endif
#ifdef TARGET_OS_ARCH_solaris_x86
# include "threadLS_solaris_x86.hpp"
#endif
#ifdef TARGET_OS_ARCH_solaris_sparc
# include "threadLS_solaris_sparc.hpp"
#endif
#ifdef TARGET_OS_ARCH_windows_x86
# include "threadLS_windows_x86.hpp"
#endif


 public:
  // Accessor
  static inline int  thread_index()              { return _thread_index; }
  static inline void set_thread_index(int index) { _thread_index = index; }

  // Initialization
  // Called explicitly from VMThread::activate_system instead of init_globals.
  static void init();
  static bool is_initialized();

 private:
  static int     _thread_index;

  static void    generate_code_for_get_thread();

  // Processor dependent parts of set_thread and initialization
  static void pd_set_thread(Thread* thread);
  static void pd_init();
  // Invalidate any thread cacheing or optimization schemes.
  static void pd_invalidate_all();

};

#endif // SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP