/* -*- 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. * * 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 #include #include #include #include #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); 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 */