hdf5_ep

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

 * Copyright by The HDF Group.                                               *

 * Copyright by the Board of Trustees of the University of Illinois.         *

 * All rights reserved.                                                      *

 *                                                                           *

 * This file is part of HDF5.  The full HDF5 copyright notice, including     *

 * terms governing use, modification, and redistribution, is contained in    *

 * the files COPYING and Copyright.html.  COPYING can be found at the root   *

 * of the source code distribution tree; Copyright.html can be found at the  *

 * root level of an installed copy of the electronic HDF5 document set and   *

 * is linked from the top-level documents page.  It can also be found at     *

 * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *

 * access to either file, you may request a copy from help@hdfgroup.org.     *

 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

​

/*

 * Programmer:  Robb Matzke <matzke@llnl.gov>

 *              Thursday, July 29, 1999

 *

 * Purpose: The POSIX unbuffered file driver using only the HDF5 public

 *      API and with a few optimizations: the lseek() call is made

 *      only when the current file position is unknown or needs to be

 *      changed based on previous I/O through this driver (don't mix

 *      I/O from this driver with I/O from other parts of the

 *      application to the same file).

 */

​

/* Interface initialization */

#define H5_INTERFACE_INIT_FUNC  H5FD_sec2_init_interface

​

​

#include "H5private.h"      /* Generic Functions            */

#include "H5Eprivate.h"     /* Error handling           */

#include "H5Fprivate.h"     /* File access              */

#include "H5FDprivate.h"    /* File drivers             */

#include "H5FDsec2.h"       /* Sec2 file driver         */

#include "H5FLprivate.h"    /* Free Lists                           */

#include "H5Iprivate.h"     /* IDs                  */

#include "H5MMprivate.h"    /* Memory management            */

#include "H5Pprivate.h"     /* Property lists           */

​

/* The driver identification number, initialized at runtime */

static hid_t H5FD_SEC2_g = 0;

​

/* File operations */

#define OP_UNKNOWN  0

#define OP_READ     1

#define OP_WRITE    2

​

/*

 * The description of a file belonging to this driver. The `eoa' and `eof'