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71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
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* Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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// no precompiled headers
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#include "memory/allocation.inline.hpp"
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#include "runtime/mutexLocker.hpp"
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#include "runtime/osThread.hpp"
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#include <signal.h>
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void OSThread::pd_initialize() {
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assert(this != NULL, "check");
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#ifdef __APPLE__
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_thread_id = 0;
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#else
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_thread_id = NULL;
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#endif
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_unique_thread_id = 0;
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_pthread_id = NULL;
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_siginfo = NULL;
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_ucontext = NULL;
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_expanding_stack = 0;
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_alt_sig_stack = NULL;
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sigemptyset(&_caller_sigmask);
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_startThread_lock = new Monitor(Mutex::event, "startThread_lock", true,
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Monitor::_safepoint_check_never);
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assert(_startThread_lock !=NULL, "check");
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}
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// Additional thread_id used to correlate threads in SA
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void OSThread::set_unique_thread_id() {
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#ifdef __APPLE__
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thread_identifier_info_data_t m_ident_info;
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mach_msg_type_number_t count = THREAD_IDENTIFIER_INFO_COUNT;
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mach_port_t mach_thread_port = mach_thread_self();
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guarantee(mach_thread_port != 0, "just checking");
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thread_info(mach_thread_port, THREAD_IDENTIFIER_INFO,
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(thread_info_t) &m_ident_info, &count);
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mach_port_deallocate(mach_task_self(), mach_thread_port);
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_unique_thread_id = m_ident_info.thread_id;
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#endif
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}
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void OSThread::pd_destroy() {
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delete _startThread_lock;
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}
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