0N/A/*
2362N/A * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A *
0N/A */
0N/A
0N/A#include "precompiled.hpp"
0N/A#include "runtime/threadCritical.hpp"
0N/A#include "thread_linux.inline.hpp"
0N/A
0N/A// put OS-includes here
0N/A# include <pthread.h>
0N/A
0N/A//
0N/A// See threadCritical.hpp for details of this class.
0N/A//
0N/A
0N/Astatic pthread_t tc_owner = 0;
0N/Astatic pthread_mutex_t tc_mutex = PTHREAD_MUTEX_INITIALIZER;
0N/Astatic int tc_count = 0;
0N/A
0N/Avoid ThreadCritical::initialize() {
0N/A}
0N/A
0N/Avoid ThreadCritical::release() {
0N/A}
0N/A
0N/AThreadCritical::ThreadCritical() {
0N/A pthread_t self = pthread_self();
0N/A if (self != tc_owner) {
0N/A int ret = pthread_mutex_lock(&tc_mutex);
0N/A guarantee(ret == 0, "fatal error with pthread_mutex_lock()");
0N/A assert(tc_count == 0, "Lock acquired with illegal reentry count.");
0N/A tc_owner = self;
0N/A }
0N/A tc_count++;
0N/A}
0N/A
0N/AThreadCritical::~ThreadCritical() {
0N/A assert(tc_owner == pthread_self(), "must have correct owner");
0N/A assert(tc_count > 0, "must have correct count");
0N/A
0N/A tc_count--;
0N/A if (tc_count == 0) {
0N/A tc_owner = 0;
0N/A int ret = pthread_mutex_unlock(&tc_mutex);
0N/A guarantee(ret == 0, "fatal error with pthread_mutex_unlock()");
0N/A }
0N/A}
0N/A