/*             ----> DO NOT REMOVE THE FOLLOWING NOTICE <----

                   Copyright (c) 2014-2015 Datalight, Inc.
                       All Rights Reserved Worldwide.

    This program 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; use version 2 of the License.

    This program is distributed in the hope that it will be useful,
    but "AS-IS," 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 this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*  Businesses and individuals that for commercial or other reasons cannot
    comply with the terms of the GPLv2 license may obtain a commercial license
    before incorporating Reliance Edge into proprietary software for
    distribution in any form.  Visit http://www.datalight.com/reliance-edge for
    more information.
*/
/** @file
*/
#ifndef REDMACS_H
#define REDMACS_H


#ifndef NULL
#define NULL ((void *)0)
#endif

#ifndef UINT8_MAX
#define UINT8_MAX   (0xFFU)
#endif
#ifndef UINT16_MAX
#define UINT16_MAX  (0xFFFFU)
#endif
#ifndef UINT32_MAX
#define UINT32_MAX  (0xFFFFFFFFU)
#endif
#ifndef UINT64_MAX
#define UINT64_MAX  UINT64_SUFFIX(0xFFFFFFFFFFFFFFFF)
#endif
#ifndef INT32_MAX
#define INT32_MAX   (0x7FFFFFFF)
#endif
#ifndef INT64_MAX
#define INT64_MAX   INT64_SUFFIX(0x7FFFFFFFFFFFFFFF)
#endif

#ifndef true
#define true (1)
#endif
#ifndef false
#define false (0)
#endif

#define SECTOR_SIZE_MIN (256U)

#if   REDCONF_BLOCK_SIZE == 256U
#define BLOCK_SIZE_P2 8U
#elif REDCONF_BLOCK_SIZE == 512U
#define BLOCK_SIZE_P2 9U
#elif REDCONF_BLOCK_SIZE == 1024U
#define BLOCK_SIZE_P2 10U
#elif REDCONF_BLOCK_SIZE == 2048U
#define BLOCK_SIZE_P2 11U
#elif REDCONF_BLOCK_SIZE == 4096U
#define BLOCK_SIZE_P2 12U
#elif REDCONF_BLOCK_SIZE == 8192U
#define BLOCK_SIZE_P2 13U
#elif REDCONF_BLOCK_SIZE == 16384U
#define BLOCK_SIZE_P2 14U
#elif REDCONF_BLOCK_SIZE == 32768U
#define BLOCK_SIZE_P2 15U
#elif REDCONF_BLOCK_SIZE == 65536U
#define BLOCK_SIZE_P2 16U
#else
#error "REDCONF_BLOCK_SIZE must be a power of two value between 256 and 65536"
#endif

#define REDMIN(a, b) (((a) < (b)) ? (a) : (b))

#define INODE_INVALID       (0U) /* General-purpose invalid inode number (must be zero). */
#define INODE_FIRST_VALID   (2U) /* First valid inode number. */
#define INODE_ROOTDIR       (INODE_FIRST_VALID) /* Inode number of the root directory. */

/*  Expands to a "const" qualifier when the volume count is one, otherwise
    expands to nothing.  This is useful for variables that never change in
    single-volume configurations but do change in multi-volume configurations.
*/
#if REDCONF_VOLUME_COUNT == 1U
  #define CONST_IF_ONE_VOLUME const
#else
  #define CONST_IF_ONE_VOLUME
#endif


#endif