annotate src/share/vm/runtime/threadLocalStorage.cpp @ 1972:f95d63e2154a

6989984: Use standard include model for Hospot Summary: Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
author stefank
date Tue, 23 Nov 2010 13:22:55 -0800
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1 /*
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "runtime/threadLocalStorage.hpp"
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27 #ifdef TARGET_OS_FAMILY_linux
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28 # include "os_linux.inline.hpp"
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29 # include "thread_linux.inline.hpp"
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30 #endif
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31 #ifdef TARGET_OS_FAMILY_solaris
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32 # include "os_solaris.inline.hpp"
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33 # include "thread_solaris.inline.hpp"
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34 #endif
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35 #ifdef TARGET_OS_FAMILY_windows
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36 # include "os_windows.inline.hpp"
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37 # include "thread_windows.inline.hpp"
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38 #endif
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40 // static member initialization
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41 int ThreadLocalStorage::_thread_index = -1;
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42
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43 Thread* ThreadLocalStorage::get_thread_slow() {
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44 return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index());
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45 }
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46
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47 void ThreadLocalStorage::set_thread(Thread* thread) {
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48 pd_set_thread(thread);
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49
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50 // The following ensure that any optimization tricks we have tried
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51 // did not backfire on us:
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52 guarantee(get_thread() == thread, "must be the same thread, quickly");
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53 guarantee(get_thread_slow() == thread, "must be the same thread, slowly");
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54 }
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55
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56 void ThreadLocalStorage::init() {
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57 assert(!is_initialized(),
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58 "More than one attempt to initialize threadLocalStorage");
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59 pd_init();
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60 set_thread_index(os::allocate_thread_local_storage());
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61 generate_code_for_get_thread();
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62 }
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64 bool ThreadLocalStorage::is_initialized() {
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65 return (thread_index() != -1);
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66 }