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/*
* Copyright (c) 2005, Technische Universitaet Berlin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of the Technische Universitat Berlin nor the names
* of its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/**
* Please refer to TEP 108 for more information about this interface and its
* intended use.<br><br>
*
* @author Kevin Klues (klues@tkn.tu-berlin.edu)
* @version $ $
* @date $Date: 2007-02-04 20:06:42 $
*/
interface ResourceDefaultOwner {
/**
* Event sent to the resource controller giving it control whenever a resource
* goes idle. That is to say, whenever no one currently owns the resource,
* and there are no more pending requests
*/
async event void granted();
/**
* Release control of the resource
*
* @return SUCCESS The resource has been released and pending requests
* can resume. <br>
* FAIL You tried to release but you are not the
* owner of the resource
*/
async command error_t release();
/**
* Check if the user of this interface is the current
* owner of the Resource
*
* @return TRUE It is the owner <br>
* FALSE It is not the owner
*/
async command bool isOwner();
/**
* This event is signalled whenever the user of this interface
* currently has control of the resource, and another user requests
* it through the Resource.request() command. You may want to
* consider releasing a resource based on this event
*/
async event void requested();
/**
* This event is signalled whenever the user of this interface
* currently has control of the resource, and another user requests
* it through the Resource.immediateRequest() command. You may
* want to consider releasing a resource based on this event
*/
async event void immediateRequested();
}
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