| /* |
| * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include "precompiled.hpp" |
| #include "gc/z/zThread.hpp" |
| #include "runtime/thread.hpp" |
| #include "utilities/debug.hpp" |
| |
| __thread bool ZThread::_initialized; |
| __thread uintptr_t ZThread::_id; |
| __thread bool ZThread::_is_vm; |
| __thread bool ZThread::_is_java; |
| __thread bool ZThread::_is_worker; |
| __thread uint ZThread::_worker_id; |
| |
| void ZThread::initialize() { |
| assert(!_initialized, "Already initialized"); |
| const Thread* const thread = Thread::current(); |
| _initialized = true; |
| _id = (uintptr_t)thread; |
| _is_vm = thread->is_VM_thread(); |
| _is_java = thread->is_Java_thread(); |
| _is_worker = thread->is_Worker_thread(); |
| _worker_id = (uint)-1; |
| } |
| |
| const char* ZThread::name() { |
| const Thread* const thread = Thread::current(); |
| if (thread->is_Named_thread()) { |
| const NamedThread* const named = (const NamedThread*)thread; |
| return named->name(); |
| } else if (thread->is_Java_thread()) { |
| return "Java"; |
| } |
| |
| return "Unknown"; |
| } |
| |
| bool ZThread::has_worker_id() { |
| return _initialized && |
| _is_worker && |
| _worker_id != (uint)-1; |
| } |
| |
| void ZThread::set_worker_id(uint worker_id) { |
| ensure_initialized(); |
| assert(!has_worker_id(), "Worker id already initialized"); |
| _worker_id = worker_id; |
| } |
| |
| void ZThread::clear_worker_id() { |
| assert(has_worker_id(), "Worker id not initialized"); |
| _worker_id = (uint)-1; |
| } |