| /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ |
| /* dbus-marshal-basic.h Marshalling routines for basic (primitive) types |
| * |
| * Copyright (C) 2002 CodeFactory AB |
| * Copyright (C) 2004, 2005 Red Hat, Inc. |
| * |
| * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| #ifndef DBUS_MARSHAL_BASIC_H |
| #define DBUS_MARSHAL_BASIC_H |
| |
| #ifdef HAVE_BYTESWAP_H |
| #include <byteswap.h> |
| #endif |
| |
| #include <dbus/dbus-protocol.h> |
| #include <dbus/dbus-types.h> |
| #include <dbus/dbus-arch-deps.h> |
| #include <dbus/dbus-string.h> |
| |
| #ifdef WORDS_BIGENDIAN |
| #define DBUS_COMPILER_BYTE_ORDER DBUS_BIG_ENDIAN |
| #else |
| #define DBUS_COMPILER_BYTE_ORDER DBUS_LITTLE_ENDIAN |
| #endif |
| |
| #ifdef HAVE_BYTESWAP_H |
| #define DBUS_UINT16_SWAP_LE_BE_CONSTANT(val) bswap_16(val) |
| #define DBUS_UINT32_SWAP_LE_BE_CONSTANT(val) bswap_32(val) |
| #else /* HAVE_BYTESWAP_H */ |
| |
| #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))) |
| |
| #endif /* HAVE_BYTESWAP_H */ |
| |
| #ifdef DBUS_HAVE_INT64 |
| |
| #ifdef HAVE_BYTESWAP_H |
| #define DBUS_UINT64_SWAP_LE_BE_CONSTANT(val) bswap_64(val) |
| #else /* HAVE_BYTESWAP_H */ |
| |
| #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 */ |
| |
| #endif /* HAVE_BYTESWAP_H */ |
| |
| #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); |
| void _dbus_marshal_set_uint32 (DBusString *str, |
| int pos, |
| dbus_uint32_t value, |
| int byte_order); |
| dbus_uint32_t _dbus_marshal_read_uint32 (const DBusString *str, |
| int pos, |
| int byte_order, |
| int *new_pos); |
| dbus_bool_t _dbus_type_is_valid (int typecode); |
| int _dbus_type_get_alignment (int typecode); |
| dbus_bool_t _dbus_type_is_fixed (int typecode); |
| int _dbus_type_get_alignment (int typecode); |
| const char* _dbus_type_to_string (int typecode); |
| |
| 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 */ |
