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 "runtime/handles.inline.hpp"

    29 #include "runtime/mutexLocker.hpp"

    30 #include "runtime/os.hpp"

    31 #include "runtime/osThread.hpp"

    32 #include "runtime/safepoint.hpp"

    33 #include "runtime/vmThread.hpp"

    34 

    35 void OSThread::pd_initialize() {

    36   assert(this != NULL, "check");

    37   _thread_id        = 0;

    38   _kernel_thread_id = 0;

    39   _siginfo = NULL;

    40   _ucontext = NULL;

    41   _expanding_stack = 0;

    42   _alt_sig_stack = NULL;

    43 

    44   _last_cpu_times.sys = _last_cpu_times.user = 0L;

    45 

    46   sigemptyset(&_caller_sigmask);

    47 

    48   _startThread_lock = new Monitor(Mutex::event, "startThread_lock", true,

    49                                   Monitor::_safepoint_check_never);

    50   assert(_startThread_lock != NULL, "check");

    51 }

    52 

    53 void OSThread::pd_destroy() {

    54   delete _startThread_lock;

    55 }