src/share/vm/runtime/jniPeriodicChecker.cpp

Thu, 27 May 2010 19:08:38 -0700

author
trims
date
Thu, 27 May 2010 19:08:38 -0700
changeset 1907
c18cbe5936b8
parent 435
a61af66fc99e
child 2314
f95d63e2154a
permissions
-rw-r--r--

6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

     1 /*
     2  * Copyright (c) 2007, 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 # include "incls/_precompiled.incl"
    26 # include "incls/_jniPeriodicChecker.cpp.incl"
    29 // --------------------------------------------------------
    30 // Class to aid in periodic checking under CheckJNICalls
    31 class JniPeriodicCheckerTask : public PeriodicTask {
    32   public:
    33      JniPeriodicCheckerTask(int interval_time) : PeriodicTask(interval_time) {}
    34      void task() { os::run_periodic_checks(); }
    35      static void engage();
    36      static void disengage();
    37 };
    40 //----------------------------------------------------------
    41 // Implementation of JniPeriodicChecker
    43 JniPeriodicCheckerTask*              JniPeriodicChecker::_task   = NULL;
    45 /*
    46  * The engage() method is called at initialization time via
    47  * Thread::create_vm() to initialize the JniPeriodicChecker and
    48  * register it with the WatcherThread as a periodic task.
    49  */
    50 void JniPeriodicChecker::engage() {
    51   if (CheckJNICalls && !is_active()) {
    52     // start up the periodic task
    53     _task = new JniPeriodicCheckerTask(10);
    54     _task->enroll();
    55   }
    56 }
    59 /*
    60  * the disengage() method is responsible for deactivating the periodic
    61  * task. This  method is called from before_exit() in java.cpp and is only called
    62  * after the WatcherThread has been stopped.
    63  */
    64 void JniPeriodicChecker::disengage() {
    65   if (CheckJNICalls && is_active()) {
    66     // remove JniPeriodicChecker
    67     _task->disenroll();
    68     delete _task;
    69     _task = NULL;
    70   }
    71 }
    73 void jniPeriodicChecker_exit() {
    74   if (!CheckJNICalls) return;
    75 }

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