1 /*
2  * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
3  * Copyright (c) 2012, 2015 SAP SE. All rights reserved.
4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5  *
6  * This code is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License version 2 only, as
8  * published by the Free Software Foundation.
9  *
10  * This code is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21  * or visit www.oracle.com if you need additional information or have any
22  * questions.
23  *
24  */
25 
26 // no precompiled headers
27 
28 #include "memory/allocation.inline.hpp"
29 #include "runtime/handles.inline.hpp"
30 #include "runtime/mutexLocker.hpp"
31 #include "runtime/os.hpp"
32 #include "runtime/osThread.hpp"
33 #include "runtime/safepoint.hpp"
34 #include "runtime/vmThread.hpp"
35 
pd_initialize()36 void OSThread::pd_initialize() {
37   assert(this != NULL, "check");
38   _thread_id        = 0;
39   _kernel_thread_id = 0;
40   _siginfo = NULL;
41   _ucontext = NULL;
42   _expanding_stack = 0;
43   _alt_sig_stack = NULL;
44 
45   _last_cpu_times.sys = _last_cpu_times.user = 0L;
46 
47   sigemptyset(&_caller_sigmask);
48 
49   _startThread_lock = new Monitor(Mutex::event, "startThread_lock", true,
50                                   Monitor::_safepoint_check_never);
51   assert(_startThread_lock != NULL, "check");
52 }
53 
pd_destroy()54 void OSThread::pd_destroy() {
55   delete _startThread_lock;
56 }
57