68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/*
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* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "runtime/thread.inline.hpp"
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#include "runtime/threadLocalStorage.hpp"
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#ifdef TARGET_OS_FAMILY_linux
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# include "os_linux.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_solaris
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# include "os_solaris.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_windows
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# include "os_windows.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_bsd
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# include "os_bsd.inline.hpp"
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#endif
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// static member initialization
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int ThreadLocalStorage::_thread_index = -1;
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Thread* ThreadLocalStorage::get_thread_slow() {
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return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index());
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}
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void ThreadLocalStorage::set_thread(Thread* thread) {
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pd_set_thread(thread);
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// The following ensure that any optimization tricks we have tried
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// did not backfire on us:
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guarantee(get_thread() == thread, "must be the same thread, quickly");
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guarantee(get_thread_slow() == thread, "must be the same thread, slowly");
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}
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void ThreadLocalStorage::init() {
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assert(!is_initialized(),
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"More than one attempt to initialize threadLocalStorage");
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pd_init();
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set_thread_index(os::allocate_thread_local_storage());
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generate_code_for_get_thread();
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}
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bool ThreadLocalStorage::is_initialized() {
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return (thread_index() != -1);
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}
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