/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "runtime/thread.hpp"

// this utility could be useful for non cx8 platforms

class JfrSpinlockHelper {

 private:

  volatile int* const _lock;

 public:

  JfrSpinlockHelper(volatile int* lock) : _lock(lock) {

    Thread::SpinAcquire(_lock, NULL);

  }

  JfrSpinlockHelper(volatile int* const lock, const char* name) : _lock(lock) {

    Thread::SpinAcquire(_lock, name);

  }

  ~JfrSpinlockHelper() {

    Thread::SpinRelease(_lock);

  }

};