src/share/vm/runtime/threadLocalStorage.hpp

Sat, 01 Dec 2007 00:00:00 +0000

author
duke
date
Sat, 01 Dec 2007 00:00:00 +0000
changeset 435
a61af66fc99e
child 677
d95b224e9f17
permissions
-rw-r--r--

Initial load

     1 /*
     2  * Copyright 1997-2003 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  *
    23  */
    25 // Interface for thread local storage
    27 // Fast variant of ThreadLocalStorage::get_thread_slow
    28 extern "C" Thread*   get_thread();
    30 // Get raw thread id: e.g., %g7 on sparc, fs or gs on x86
    31 extern "C" uintptr_t _raw_thread_id();
    33 class ThreadLocalStorage : AllStatic {
    34  public:
    35   static void    set_thread(Thread* thread);
    36   static Thread* get_thread_slow();
    37   static void    invalidate_all() { pd_invalidate_all(); }
    39   // Machine dependent stuff
    40   #include "incls/_threadLS_pd.hpp.incl"
    42  public:
    43   // Accessor
    44   static inline int  thread_index()              { return _thread_index; }
    45   static inline void set_thread_index(int index) { _thread_index = index; }
    47   // Initialization
    48   // Called explicitly from VMThread::activate_system instead of init_globals.
    49   static void init();
    51  private:
    52   static int     _thread_index;
    54   static void    generate_code_for_get_thread();
    56   // Processor dependent parts of set_thread and initialization
    57   static void pd_set_thread(Thread* thread);
    58   static void pd_init();
    59   // Invalidate any thread cacheing or optimization schemes.
    60   static void pd_invalidate_all();
    62 };

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