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/_threadLocalStorage.cpp.incl"












  27 
  28 // static member initialization
  29 int ThreadLocalStorage::_thread_index = -1;
  30 
  31 Thread* ThreadLocalStorage::get_thread_slow() {
  32   return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index());
  33 }
  34 
  35 void ThreadLocalStorage::set_thread(Thread* thread) {
  36   pd_set_thread(thread);
  37 
  38   // The following ensure that any optimization tricks we have tried
  39   // did not backfire on us:
  40   guarantee(get_thread()      == thread, "must be the same thread, quickly");
  41   guarantee(get_thread_slow() == thread, "must be the same thread, slowly");
  42 }
  43 
  44 void ThreadLocalStorage::init() {
  45   assert(!is_initialized(),
  46          "More than one attempt to initialize threadLocalStorage");

   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 "runtime/threadLocalStorage.hpp"
  27 #ifdef TARGET_OS_FAMILY_linux
  28 # include "os_linux.inline.hpp"
  29 # include "thread_linux.inline.hpp"
  30 #endif
  31 #ifdef TARGET_OS_FAMILY_solaris
  32 # include "os_solaris.inline.hpp"
  33 # include "thread_solaris.inline.hpp"
  34 #endif
  35 #ifdef TARGET_OS_FAMILY_windows
  36 # include "os_windows.inline.hpp"
  37 # include "thread_windows.inline.hpp"
  38 #endif
  39 
  40 // static member initialization
  41 int ThreadLocalStorage::_thread_index = -1;
  42 
  43 Thread* ThreadLocalStorage::get_thread_slow() {
  44   return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index());
  45 }
  46 
  47 void ThreadLocalStorage::set_thread(Thread* thread) {
  48   pd_set_thread(thread);
  49 
  50   // The following ensure that any optimization tricks we have tried
  51   // did not backfire on us:
  52   guarantee(get_thread()      == thread, "must be the same thread, quickly");
  53   guarantee(get_thread_slow() == thread, "must be the same thread, slowly");
  54 }
  55 
  56 void ThreadLocalStorage::init() {
  57   assert(!is_initialized(),
  58          "More than one attempt to initialize threadLocalStorage");