blockinglog.nc

tinyos2.0版本驱动

/*
 * Copyright (c) 2008 Johns Hopkins University.
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose, without fee, and without written
 * agreement is hereby granted, provided that the above copyright
 * notice, the (updated) modification history and the author appear in
 * all copies of this source code.
 *
 * 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 HOLDERS OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF USE, DATA,
 * OR PROFITS) 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.
*/

/**
 * @author Chieh-Jan Mike Liang <[e-mail]>
 */
 
 #include "Storage.h"
 
interface BlockingLog {
  command error_t read(void *buf, storage_len_t *len);
  command storage_cookie_t currentReadOffset();
  command error_t seek(storage_cookie_t offset);
  command storage_len_t getSize();
  
  command error_t append(void* buf, storage_len_t *len, bool *recordsLost);
  command storage_cookie_t currentWriteOffset();
  command error_t erase();
  command error_t sync();
}