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src/share/vm/runtime/threadLocalStorage.cpp@9f4457a14b58 (annotated)

src/share/vm/runtime/threadLocalStorage.cpp

Wed, 09 Apr 2008 15:10:22 -0700

author

rasbold

date

Wed, 09 Apr 2008 15:10:22 -0700

changeset 544

9f4457a14b58

parent 435

a61af66fc99e

child 677

d95b224e9f17

permissions

-rw-r--r--

Merge

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	# include "incls/_precompiled.incl"
duke@435	26	# include "incls/_threadLocalStorage.cpp.incl"
duke@435	27
duke@435	28	// static member initialization
duke@435	29	int ThreadLocalStorage::_thread_index = -1;
duke@435	30
duke@435	31	Thread* ThreadLocalStorage::get_thread_slow() {
duke@435	32	return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index());
duke@435	33	}
duke@435	34
duke@435	35	void ThreadLocalStorage::set_thread(Thread* thread) {
duke@435	36	pd_set_thread(thread);
duke@435	37
duke@435	38	// The following ensure that any optimization tricks we have tried
duke@435	39	// did not backfire on us:
duke@435	40	guarantee(get_thread() == thread, "must be the same thread, quickly");
duke@435	41	guarantee(get_thread_slow() == thread, "must be the same thread, slowly");
duke@435	42	}
duke@435	43
duke@435	44	void ThreadLocalStorage::init() {
duke@435	45	assert(ThreadLocalStorage::thread_index() == -1, "More than one attempt to initialize threadLocalStorage");
duke@435	46	pd_init();
duke@435	47	set_thread_index(os::allocate_thread_local_storage());
duke@435	48	generate_code_for_get_thread();
duke@435	49	}