/* -*- c++ -*- */

/*

 * Copyright 2002 Free Software Foundation, Inc.

 * 

 * This file is part of GNU Radio

 * 

 * GNU Radio is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3, or (at your option)

 * any later version.

 * 

 * GNU Radio 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 for more details.

 * 

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

 * along with GNU Radio; see the file COPYING.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street,

 * Boston, MA 02110-1301, USA.

 */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <qa_gr_circular_file.h>

#include <gr_circular_file.h>

#include <cppunit/TestAssert.h>

#include <iostream>

#include <stdio.h>

#include <unistd.h>

static const char *test_file = "qa_gr_circular_file.data";

static const int BUFFER_SIZE = 8192;

static const int NWRITE = 8192 * 9 / 8;

void

qa_gr_circular_file::t1 ()

{

#ifdef HAVE_MMAP

  gr_circular_file        *cf_writer;

  gr_circular_file        *cf_reader;

  // write the data...

  cf_writer = new gr_circular_file (test_file, true, BUFFER_SIZE * sizeof (short));

  short sd;

  for (int i = 0; i < NWRITE; i++){

    sd = i;

    cf_writer->write (&sd, sizeof (sd));

  }

  delete cf_writer;

  // now read it back...

  cf_reader = new gr_circular_file (test_file);

  for (int i = 0; i < BUFFER_SIZE; i++){

    int n = cf_reader->read (&sd, sizeof (sd));

    CPPUNIT_ASSERT_EQUAL ((int) sizeof (sd), n);

    CPPUNIT_ASSERT_EQUAL (NWRITE - BUFFER_SIZE + i, (int) sd);

  }

  int n = cf_reader->read (&sd, sizeof (sd));

  CPPUNIT_ASSERT_EQUAL (0, n);

  delete cf_reader;

  unlink (test_file);

#endif // HAVE_MMAP

}