Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/vm/runtime/jniPeriodicChecker.cpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,75 @@
     1.4 +/*
     1.5 + * Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +# include "incls/_precompiled.incl"
    1.29 +# include "incls/_jniPeriodicChecker.cpp.incl"
    1.30 +
    1.31 +
    1.32 +// --------------------------------------------------------
    1.33 +// Class to aid in periodic checking under CheckJNICalls
    1.34 +class JniPeriodicCheckerTask : public PeriodicTask {
    1.35 +  public:
    1.36 +     JniPeriodicCheckerTask(int interval_time) : PeriodicTask(interval_time) {}
    1.37 +     void task() { os::run_periodic_checks(); }
    1.38 +     static void engage();
    1.39 +     static void disengage();
    1.40 +};
    1.41 +
    1.42 +
    1.43 +//----------------------------------------------------------
    1.44 +// Implementation of JniPeriodicChecker
    1.45 +
    1.46 +JniPeriodicCheckerTask*              JniPeriodicChecker::_task   = NULL;
    1.47 +
    1.48 +/*
    1.49 + * The engage() method is called at initialization time via
    1.50 + * Thread::create_vm() to initialize the JniPeriodicChecker and
    1.51 + * register it with the WatcherThread as a periodic task.
    1.52 + */
    1.53 +void JniPeriodicChecker::engage() {
    1.54 +  if (CheckJNICalls && !is_active()) {
    1.55 +    // start up the periodic task
    1.56 +    _task = new JniPeriodicCheckerTask(10);
    1.57 +    _task->enroll();
    1.58 +  }
    1.59 +}
    1.60 +
    1.61 +
    1.62 +/*
    1.63 + * the disengage() method is responsible for deactivating the periodic
    1.64 + * task. This  method is called from before_exit() in java.cpp and is only called
    1.65 + * after the WatcherThread has been stopped.
    1.66 + */
    1.67 +void JniPeriodicChecker::disengage() {
    1.68 +  if (CheckJNICalls && is_active()) {
    1.69 +    // remove JniPeriodicChecker
    1.70 +    _task->disenroll();
    1.71 +    delete _task;
    1.72 +    _task = NULL;
    1.73 +  }
    1.74 +}
    1.75 +
    1.76 +void jniPeriodicChecker_exit() {
    1.77 +  if (!CheckJNICalls) return;
    1.78 +}