src/os/solaris/vm/osThread_solaris.cpp

Wed, 27 Apr 2016 01:25:04 +0800

author
aoqi
date
Wed, 27 Apr 2016 01:25:04 +0800
changeset 0
f90c822e73f8
child 6876
710a3c8b516e
permissions
-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

     1 /*
     2  * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 // no precompiled headers
    26 #include "runtime/atomic.hpp"
    27 #include "runtime/handles.inline.hpp"
    28 #include "runtime/mutexLocker.hpp"
    29 #include "runtime/os.hpp"
    30 #include "runtime/osThread.hpp"
    31 #include "runtime/safepoint.hpp"
    32 #include "runtime/vmThread.hpp"
    34 #include <signal.h>
    36  // ***************************************************************
    37  // Platform dependent initialization and cleanup
    38  // ***************************************************************
    40 void OSThread::pd_initialize() {
    41   _thread_id                         = 0;
    42   sigemptyset(&_caller_sigmask);
    44   _saved_interrupt_thread_state      = _thread_new;
    45   _vm_created_thread                 = false;
    46 }
    48 void OSThread::pd_destroy() {
    49 }
    51 // copied from synchronizer.cpp
    53 void OSThread::handle_spinlock_contention(int tries) {
    54   if (NoYieldsInMicrolock) return;
    56   if (tries > 10) {
    57     os::yield_all(tries); // Yield to threads of any priority
    58   } else if (tries > 5) {
    59     os::yield();          // Yield to threads of same or higher priority
    60   }
    61 }
    63 void OSThread::SR_handler(Thread* thread, ucontext_t* uc) {
    64   os::Solaris::SR_handler(thread, uc);
    65 }

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