/*
*
*
* Copyright 1990-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program 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 program 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 at /legal/license.txt).
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.midp.rms;
import com.sun.midp.util.isolate.InterIsolateMutex;
import com.sun.midp.security.SecurityToken;
import com.sun.midp.security.Permissions;
/**
* AbstractRecordStoreLock interface implementation for
* MIDP on CLDC.
*/
class RecordStoreLock implements AbstractRecordStoreLock {
/** Inter-isolate mutex that provides locking */
private InterIsolateMutex mutex;
/**
* Obtains the lock. Blocks if another MIDlet is holding the lock.
*/
public void obtain() {
mutex.lock();
}
/**
* Releases the lock and unblocks waiters.
*/
public void release() {
mutex.unlock();
}
/**
* Constructor.
*
* @param token security token
* @name lock name
*/
RecordStoreLock(SecurityToken token, String name) {
mutex = InterIsolateMutex.getInstance(token, name);
}
/**
* Private constructor to prevent creating uninitialized
* class instances.
*/
private RecordStoreLock() {
mutex = null;
}
}