/* -*- mode: C; c-file-style: "gnu" -*- */

/* dbus-marshal-basic.h  Marshalling routines for basic (primitive) types

 *

 * Copyright (C) 2002  CodeFactory AB

 * Copyright (C) 2004, 2005  Red Hat, Inc.

 * Portion Copyright © 2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.

 * Licensed under the Academic Free License version 2.1

 *

 * 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; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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 this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 */

#ifndef DBUS_MARSHAL_BASIC_H

#define DBUS_MARSHAL_BASIC_H

#include "config.h"

#include <dbus/dbus-protocol.h>

#include <dbus/dbus-types.h>

#ifndef __SYMBIAN32__

#include <dbus/dbus-arch-deps.h>

#include <dbus/dbus-string.h>

#else

#include "dbus/dbus-arch-deps.h"

#include "dbus/dbus-string.h"

#endif

#ifndef PACKAGE

#error "config.h not included here"

#endif

#ifdef WORDS_BIGENDIAN

#define DBUS_COMPILER_BYTE_ORDER DBUS_BIG_ENDIAN

#else

#define DBUS_COMPILER_BYTE_ORDER DBUS_LITTLE_ENDIAN

#endif

#define DBUS_UINT16_SWAP_LE_BE_CONSTANT(val)	((dbus_uint16_t) (      \

    (dbus_uint16_t) ((dbus_uint16_t) (val) >> 8) |                      \

    (dbus_uint16_t) ((dbus_uint16_t) (val) << 8)))

#define DBUS_UINT32_SWAP_LE_BE_CONSTANT(val)	((dbus_uint32_t) (      \

    (((dbus_uint32_t) (val) & (dbus_uint32_t) 0x000000ffU) << 24) |     \

    (((dbus_uint32_t) (val) & (dbus_uint32_t) 0x0000ff00U) <<  8) |     \

    (((dbus_uint32_t) (val) & (dbus_uint32_t) 0x00ff0000U) >>  8) |     \

    (((dbus_uint32_t) (val) & (dbus_uint32_t) 0xff000000U) >> 24)))

#ifdef DBUS_HAVE_INT64

#define DBUS_UINT64_SWAP_LE_BE_CONSTANT(val)	((dbus_uint64_t) (              \

      (((dbus_uint64_t) (val) &                                                 \

	(dbus_uint64_t) DBUS_UINT64_CONSTANT (0x00000000000000ff)) << 56) |    \

      (((dbus_uint64_t) (val) &                                                 \

	(dbus_uint64_t) DBUS_UINT64_CONSTANT (0x000000000000ff00)) << 40) |    \

      (((dbus_uint64_t) (val) &                                                 \

	(dbus_uint64_t) DBUS_UINT64_CONSTANT (0x0000000000ff0000)) << 24) |    \

      (((dbus_uint64_t) (val) &                                                 \

	(dbus_uint64_t) DBUS_UINT64_CONSTANT (0x00000000ff000000)) <<  8) |    \

      (((dbus_uint64_t) (val) &                                                 \

	(dbus_uint64_t) DBUS_UINT64_CONSTANT (0x000000ff00000000)) >>  8) |    \

      (((dbus_uint64_t) (val) &                                                 \

	(dbus_uint64_t) DBUS_UINT64_CONSTANT (0x0000ff0000000000)) >> 24) |    \

      (((dbus_uint64_t) (val) &                                                 \

	(dbus_uint64_t) DBUS_UINT64_CONSTANT (0x00ff000000000000)) >> 40) |    \

      (((dbus_uint64_t) (val) &                                                 \

	(dbus_uint64_t) DBUS_UINT64_CONSTANT (0xff00000000000000)) >> 56)))

#endif /* DBUS_HAVE_INT64 */

#define DBUS_UINT16_SWAP_LE_BE(val) (DBUS_UINT16_SWAP_LE_BE_CONSTANT (val))

#define DBUS_INT16_SWAP_LE_BE(val)  ((dbus_int16_t)DBUS_UINT16_SWAP_LE_BE_CONSTANT (val))

#define DBUS_UINT32_SWAP_LE_BE(val) (DBUS_UINT32_SWAP_LE_BE_CONSTANT (val))

#define DBUS_INT32_SWAP_LE_BE(val)  ((dbus_int32_t)DBUS_UINT32_SWAP_LE_BE_CONSTANT (val))

#ifdef DBUS_HAVE_INT64

#  define DBUS_UINT64_SWAP_LE_BE(val) (DBUS_UINT64_SWAP_LE_BE_CONSTANT (val))

#  define DBUS_INT64_SWAP_LE_BE(val)  ((dbus_int64_t)DBUS_UINT64_SWAP_LE_BE_CONSTANT (val))

#endif /* DBUS_HAVE_INT64 */

#ifdef WORDS_BIGENDIAN

#  define DBUS_INT16_TO_BE(val)	((dbus_int16_t) (val))

#  define DBUS_UINT16_TO_BE(val)	((dbus_uint16_t) (val))

#  define DBUS_INT16_TO_LE(val)	(DBUS_INT16_SWAP_LE_BE (val))

#  define DBUS_UINT16_TO_LE(val)	(DBUS_UINT16_SWAP_LE_BE (val))

#  define DBUS_INT32_TO_BE(val)	((dbus_int32_t) (val))

#  define DBUS_UINT32_TO_BE(val)	((dbus_uint32_t) (val))

#  define DBUS_INT32_TO_LE(val)	(DBUS_INT32_SWAP_LE_BE (val))

#  define DBUS_UINT32_TO_LE(val)	(DBUS_UINT32_SWAP_LE_BE (val))

#  ifdef DBUS_HAVE_INT64

#    define DBUS_INT64_TO_BE(val)	((dbus_int64_t) (val))

#    define DBUS_UINT64_TO_BE(val)	((dbus_uint64_t) (val))

#    define DBUS_INT64_TO_LE(val)	(DBUS_INT64_SWAP_LE_BE (val))

#    define DBUS_UINT64_TO_LE(val)	(DBUS_UINT64_SWAP_LE_BE (val))

#  endif /* DBUS_HAVE_INT64 */

#else /* WORDS_BIGENDIAN */

#  define DBUS_INT16_TO_LE(val)	((dbus_int16_t) (val))

#  define DBUS_UINT16_TO_LE(val)	((dbus_uint16_t) (val))

#  define DBUS_INT16_TO_BE(val)	((dbus_int16_t) DBUS_UINT16_SWAP_LE_BE (val))

#  define DBUS_UINT16_TO_BE(val)	(DBUS_UINT16_SWAP_LE_BE (val))

#  define DBUS_INT32_TO_LE(val)	((dbus_int32_t) (val))

#  define DBUS_UINT32_TO_LE(val)	((dbus_uint32_t) (val))

#  define DBUS_INT32_TO_BE(val)	((dbus_int32_t) DBUS_UINT32_SWAP_LE_BE (val))

#  define DBUS_UINT32_TO_BE(val)	(DBUS_UINT32_SWAP_LE_BE (val))

#  ifdef DBUS_HAVE_INT64

#    define DBUS_INT64_TO_LE(val)	((dbus_int64_t) (val))

#    define DBUS_UINT64_TO_LE(val)	((dbus_uint64_t) (val))

#    define DBUS_INT64_TO_BE(val)	((dbus_int64_t) DBUS_UINT64_SWAP_LE_BE (val))

#    define DBUS_UINT64_TO_BE(val)	(DBUS_UINT64_SWAP_LE_BE (val))

#  endif /* DBUS_HAVE_INT64 */

#endif

/* The transformation is symmetric, so the FROM just maps to the TO. */

#define DBUS_INT16_FROM_LE(val)	 (DBUS_INT16_TO_LE (val))

#define DBUS_UINT16_FROM_LE(val) (DBUS_UINT16_TO_LE (val))

#define DBUS_INT16_FROM_BE(val)	 (DBUS_INT16_TO_BE (val))

#define DBUS_UINT16_FROM_BE(val) (DBUS_UINT16_TO_BE (val))

#define DBUS_INT32_FROM_LE(val)	 (DBUS_INT32_TO_LE (val))

#define DBUS_UINT32_FROM_LE(val) (DBUS_UINT32_TO_LE (val))

#define DBUS_INT32_FROM_BE(val)	 (DBUS_INT32_TO_BE (val))

#define DBUS_UINT32_FROM_BE(val) (DBUS_UINT32_TO_BE (val))

#ifdef DBUS_HAVE_INT64

#  define DBUS_INT64_FROM_LE(val)	 (DBUS_INT64_TO_LE (val))

#  define DBUS_UINT64_FROM_LE(val) (DBUS_UINT64_TO_LE (val))

#  define DBUS_INT64_FROM_BE(val)	 (DBUS_INT64_TO_BE (val))

#  define DBUS_UINT64_FROM_BE(val) (DBUS_UINT64_TO_BE (val))

#endif /* DBUS_HAVE_INT64 */

#ifndef DBUS_HAVE_INT64

/**

 * An 8-byte struct you could use to access int64 without having

 * int64 support

 */

typedef struct

{

  dbus_uint32_t first32;  /**< first 32 bits in the 8 bytes (beware endian issues) */

  dbus_uint32_t second32; /**< second 32 bits in the 8 bytes (beware endian issues) */

} DBus8ByteStruct;

#endif /* DBUS_HAVE_INT64 */

/**

 * A simple 8-byte value union that lets you access 8 bytes as if they

 * were various types; useful when dealing with basic types via

 * void pointers and varargs.

 */

typedef union

{

  dbus_int16_t  i16;   /**< as int16 */

  dbus_uint16_t u16;   /**< as int16 */

  dbus_int32_t  i32;   /**< as int32 */

  dbus_uint32_t u32;   /**< as int32 */

#ifdef DBUS_HAVE_INT64

  dbus_int64_t  i64;   /**< as int64 */

  dbus_uint64_t u64;   /**< as int64 */

#else

  DBus8ByteStruct u64; /**< as 8-byte-struct */

#endif

  double dbl;          /**< as double */

  unsigned char byt;   /**< as byte */

  char *str;           /**< as char* */

} DBusBasicValue;

#ifdef DBUS_DISABLE_ASSERT

#define _dbus_unpack_uint16(byte_order, data)           \

   (((byte_order) == DBUS_LITTLE_ENDIAN) ?              \

     DBUS_UINT16_FROM_LE (*(dbus_uint16_t*)(data)) :    \

     DBUS_UINT16_FROM_BE (*(dbus_uint16_t*)(data)))

#define _dbus_unpack_uint32(byte_order, data)           \

   (((byte_order) == DBUS_LITTLE_ENDIAN) ?              \

     DBUS_UINT32_FROM_LE (*(dbus_uint32_t*)(data)) :    \

     DBUS_UINT32_FROM_BE (*(dbus_uint32_t*)(data)))

#endif

#ifndef _dbus_unpack_uint16

dbus_uint16_t _dbus_unpack_uint16 (int                  byte_order,

                                   const unsigned char *data);

#endif

void          _dbus_pack_uint32   (dbus_uint32_t        value,

                                   int                  byte_order,

                                   unsigned char       *data);

#ifndef _dbus_unpack_uint32

dbus_uint32_t _dbus_unpack_uint32 (int                  byte_order,

                                   const unsigned char *data);

#endif

dbus_bool_t   _dbus_marshal_set_basic         (DBusString       *str,

                                               int               pos,

                                               int               type,

                                               const void       *value,

                                               int               byte_order,

                                               int              *old_end_pos,

                                               int              *new_end_pos);

dbus_bool_t   _dbus_marshal_write_basic       (DBusString       *str,

                                               int               insert_at,

                                               int               type,

                                               const void       *value,

                                               int               byte_order,

                                               int              *pos_after);

dbus_bool_t   _dbus_marshal_write_fixed_multi (DBusString       *str,

                                               int               insert_at,

                                               int               element_type,

                                               const void       *value,

                                               int               n_elements,

                                               int               byte_order,

                                               int              *pos_after);

void          _dbus_marshal_read_basic        (const DBusString *str,

                                               int               pos,

                                               int               type,

                                               void             *value,

                                               int               byte_order,

                                               int              *new_pos);

void          _dbus_marshal_read_fixed_multi  (const DBusString *str,

                                               int               pos,

                                               int               element_type,

                                               void             *value,

                                               int               n_elements,

                                               int               byte_order,

                                               int              *new_pos);

void          _dbus_marshal_skip_basic        (const DBusString *str,

                                               int               type,

                                               int               byte_order,

                                               int              *pos);

void          _dbus_marshal_skip_array        (const DBusString *str,

                                               int               element_type,

                                               int               byte_order,

                                               int              *pos);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void          _dbus_marshal_set_uint32        (DBusString       *str,

                                               int               pos,

                                               dbus_uint32_t     value,

                                               int               byte_order);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_uint32_t _dbus_marshal_read_uint32       (const DBusString *str,

                                               int               pos,

                                               int               byte_order,

                                               int              *new_pos);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t   _dbus_type_is_valid             (int               typecode);

int           _dbus_type_get_alignment        (int               typecode);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t   _dbus_type_is_fixed             (int               typecode);

int           _dbus_type_get_alignment        (int               typecode);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

const char*   _dbus_type_to_string            (int               typecode);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

int           _dbus_first_type_in_signature   (const DBusString *str,

                                               int               pos);

int           _dbus_first_type_in_signature_c_str   (const char       *str,

						     int               pos);

void _dbus_swap_array (unsigned char *data,

                       int            n_elements,

                       int            alignment);

#endif /* DBUS_MARSHAL_BASIC_H */