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comparison src/share/vm/runtime/threadLocalStorage.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children d95b224e9f17
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-1:000000000000 0:a61af66fc99e
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 */
24
25 // Interface for thread local storage
26
27 // Fast variant of ThreadLocalStorage::get_thread_slow
28 extern "C" Thread* get_thread();
29
30 // Get raw thread id: e.g., %g7 on sparc, fs or gs on x86
31 extern "C" uintptr_t _raw_thread_id();
32
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(); }
38
39 // Machine dependent stuff
40 #include "incls/_threadLS_pd.hpp.incl"
41
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; }
46
47 // Initialization
48 // Called explicitly from VMThread::activate_system instead of init_globals.
49 static void init();
50
51 private:
52 static int _thread_index;
53
54 static void generate_code_for_get_thread();
55
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();
61
62 };