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src/share/vm/runtime/threadLocalStorage.hpp@018d5b58dd4f (annotated)

src/share/vm/runtime/threadLocalStorage.hpp

Thu, 17 Apr 2008 22:18:15 -0400

author

kamg

date

Thu, 17 Apr 2008 22:18:15 -0400

changeset 551

018d5b58dd4f

parent 435

a61af66fc99e

child 677

d95b224e9f17

permissions

-rw-r--r--

6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
Summary: Initial checkin of JSDT code
Reviewed-by: acorn, sbohne

duke@435	1	/*
duke@435	2	* Copyright 1997-2003 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// Interface for thread local storage
duke@435	26
duke@435	27	// Fast variant of ThreadLocalStorage::get_thread_slow
duke@435	28	extern "C" Thread* get_thread();
duke@435	29
duke@435	30	// Get raw thread id: e.g., %g7 on sparc, fs or gs on x86
duke@435	31	extern "C" uintptr_t _raw_thread_id();
duke@435	32
duke@435	33	class ThreadLocalStorage : AllStatic {
duke@435	34	public:
duke@435	35	static void set_thread(Thread* thread);
duke@435	36	static Thread* get_thread_slow();
duke@435	37	static void invalidate_all() { pd_invalidate_all(); }
duke@435	38
duke@435	39	// Machine dependent stuff
duke@435	40	#include "incls/_threadLS_pd.hpp.incl"
duke@435	41
duke@435	42	public:
duke@435	43	// Accessor
duke@435	44	static inline int thread_index() { return _thread_index; }
duke@435	45	static inline void set_thread_index(int index) { _thread_index = index; }
duke@435	46
duke@435	47	// Initialization
duke@435	48	// Called explicitly from VMThread::activate_system instead of init_globals.
duke@435	49	static void init();
duke@435	50
duke@435	51	private:
duke@435	52	static int _thread_index;
duke@435	53
duke@435	54	static void generate_code_for_get_thread();
duke@435	55
duke@435	56	// Processor dependent parts of set_thread and initialization
duke@435	57	static void pd_set_thread(Thread* thread);
duke@435	58	static void pd_init();
duke@435	59	// Invalidate any thread cacheing or optimization schemes.
duke@435	60	static void pd_invalidate_all();
duke@435	61
duke@435	62	};