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src/os/bsd/vm/threadCritical_bsd.cpp@c6ec0a97b30a (annotated)

src/os/bsd/vm/threadCritical_bsd.cpp

Wed, 21 Aug 2013 13:18:52 +0200

author

sla

date

Wed, 21 Aug 2013 13:18:52 +0200

changeset 5563

c6ec0a97b30a

parent 4299

f34d701e952e

child 6876

710a3c8b516e

permissions

-rw-r--r--

8022808: Kitchensink hangs on macos
Summary: Use pthread_mach_thread_np() instead of mach_thread_self() to avoid leaking resources
Reviewed-by: dholmes, rbackman

never@3156	1	/*
never@3156	2	* Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
never@3156	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
never@3156	4	*
never@3156	5	* This code is free software; you can redistribute it and/or modify it
never@3156	6	* under the terms of the GNU General Public License version 2 only, as
never@3156	7	* published by the Free Software Foundation.
never@3156	8	*
never@3156	9	* This code is distributed in the hope that it will be useful, but WITHOUT
never@3156	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
never@3156	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
never@3156	12	* version 2 for more details (a copy is included in the LICENSE file that
never@3156	13	* accompanied this code).
never@3156	14	*
never@3156	15	* You should have received a copy of the GNU General Public License version
never@3156	16	* 2 along with this work; if not, write to the Free Software Foundation,
never@3156	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
never@3156	18	*
never@3156	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
never@3156	20	* or visit www.oracle.com if you need additional information or have any
never@3156	21	* questions.
never@3156	22	*
never@3156	23	*/
never@3156	24
never@3156	25	#include "precompiled.hpp"
stefank@4299	26	#include "runtime/thread.inline.hpp"
never@3156	27	#include "runtime/threadCritical.hpp"
never@3156	28
never@3156	29	// put OS-includes here
never@3156	30	# include <pthread.h>
never@3156	31
never@3156	32	//
never@3156	33	// See threadCritical.hpp for details of this class.
never@3156	34	//
never@3156	35
never@3156	36	static pthread_t tc_owner = 0;
never@3156	37	static pthread_mutex_t tc_mutex = PTHREAD_MUTEX_INITIALIZER;
never@3156	38	static int tc_count = 0;
never@3156	39
never@3156	40	void ThreadCritical::initialize() {
never@3156	41	}
never@3156	42
never@3156	43	void ThreadCritical::release() {
never@3156	44	}
never@3156	45
never@3156	46	ThreadCritical::ThreadCritical() {
never@3156	47	pthread_t self = pthread_self();
never@3156	48	if (self != tc_owner) {
never@3156	49	int ret = pthread_mutex_lock(&tc_mutex);
never@3156	50	guarantee(ret == 0, "fatal error with pthread_mutex_lock()");
never@3156	51	assert(tc_count == 0, "Lock acquired with illegal reentry count.");
never@3156	52	tc_owner = self;
never@3156	53	}
never@3156	54	tc_count++;
never@3156	55	}
never@3156	56
never@3156	57	ThreadCritical::~ThreadCritical() {
never@3156	58	assert(tc_owner == pthread_self(), "must have correct owner");
never@3156	59	assert(tc_count > 0, "must have correct count");
never@3156	60
never@3156	61	tc_count--;
never@3156	62	if (tc_count == 0) {
never@3156	63	tc_owner = 0;
never@3156	64	int ret = pthread_mutex_unlock(&tc_mutex);
never@3156	65	guarantee(ret == 0, "fatal error with pthread_mutex_unlock()");
never@3156	66	}
never@3156	67	}