| /* |
| * Copyright (c) 1997, 2015, 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. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "runtime/thread.inline.hpp" |
| #include "runtime/threadLocalStorage.hpp" |
| #ifdef TARGET_OS_FAMILY_linux |
| # include "os_linux.inline.hpp" |
| #endif |
| #ifdef TARGET_OS_FAMILY_solaris |
| # include "os_solaris.inline.hpp" |
| #endif |
| #ifdef TARGET_OS_FAMILY_windows |
| # include "os_windows.inline.hpp" |
| #endif |
| #ifdef TARGET_OS_FAMILY_bsd |
| # include "os_bsd.inline.hpp" |
| #endif |
| |
| // Solaris no longer has this kind of ThreadLocalStorage implementation. |
| // This will be removed from all platforms in the near future. |
| |
| #ifndef SOLARIS |
| |
| // static member initialization |
| int ThreadLocalStorage::_thread_index = -1; |
| |
| Thread* ThreadLocalStorage::get_thread_slow() { |
| return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index()); |
| } |
| |
| void ThreadLocalStorage::set_thread(Thread* thread) { |
| pd_set_thread(thread); |
| |
| // The following ensure that any optimization tricks we have tried |
| // did not backfire on us: |
| guarantee(get_thread() == thread, "must be the same thread, quickly"); |
| guarantee(get_thread_slow() == thread, "must be the same thread, slowly"); |
| } |
| |
| void ThreadLocalStorage::init() { |
| assert(!is_initialized(), |
| "More than one attempt to initialize threadLocalStorage"); |
| pd_init(); |
| set_thread_index(os::allocate_thread_local_storage()); |
| generate_code_for_get_thread(); |
| } |
| |
| bool ThreadLocalStorage::is_initialized() { |
| return (thread_index() != -1); |
| } |
| |
| #endif // SOLARIS |