Thu, 27 May 2010 19:08:38 -0700
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
duke@435 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 2001, 2006, Oracle and/or its affiliates. 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 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | #include "incls/_precompiled.incl" |
duke@435 | 26 | #include "incls/_threadCritical_linux.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | // put OS-includes here |
duke@435 | 29 | # include <pthread.h> |
duke@435 | 30 | |
duke@435 | 31 | // |
duke@435 | 32 | // See threadCritical.hpp for details of this class. |
duke@435 | 33 | // |
duke@435 | 34 | |
duke@435 | 35 | static pthread_t tc_owner = 0; |
duke@435 | 36 | static pthread_mutex_t tc_mutex = PTHREAD_MUTEX_INITIALIZER; |
duke@435 | 37 | static int tc_count = 0; |
duke@435 | 38 | |
duke@435 | 39 | void ThreadCritical::initialize() { |
duke@435 | 40 | } |
duke@435 | 41 | |
duke@435 | 42 | void ThreadCritical::release() { |
duke@435 | 43 | } |
duke@435 | 44 | |
duke@435 | 45 | ThreadCritical::ThreadCritical() { |
duke@435 | 46 | pthread_t self = pthread_self(); |
duke@435 | 47 | if (self != tc_owner) { |
duke@435 | 48 | int ret = pthread_mutex_lock(&tc_mutex); |
duke@435 | 49 | guarantee(ret == 0, "fatal error with pthread_mutex_lock()"); |
duke@435 | 50 | assert(tc_count == 0, "Lock acquired with illegal reentry count."); |
duke@435 | 51 | tc_owner = self; |
duke@435 | 52 | } |
duke@435 | 53 | tc_count++; |
duke@435 | 54 | } |
duke@435 | 55 | |
duke@435 | 56 | ThreadCritical::~ThreadCritical() { |
duke@435 | 57 | assert(tc_owner == pthread_self(), "must have correct owner"); |
duke@435 | 58 | assert(tc_count > 0, "must have correct count"); |
duke@435 | 59 | |
duke@435 | 60 | tc_count--; |
duke@435 | 61 | if (tc_count == 0) { |
duke@435 | 62 | tc_owner = 0; |
duke@435 | 63 | int ret = pthread_mutex_unlock(&tc_mutex); |
duke@435 | 64 | guarantee(ret == 0, "fatal error with pthread_mutex_unlock()"); |
duke@435 | 65 | } |
duke@435 | 66 | } |