1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* dbus-marshal-basic.h Marshalling routines for basic (primitive) types
4 * Copyright (C) 2002 CodeFactory AB
5 * Copyright (C) 2004, 2005 Red Hat, Inc.
7 * Licensed under the Academic Free License version 2.1
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #ifndef DBUS_MARSHAL_BASIC_H
26 #define DBUS_MARSHAL_BASIC_H
29 #include <dbus/dbus-protocol.h>
30 #include <dbus/dbus-types.h>
31 #include <dbus/dbus-arch-deps.h>
32 #include <dbus/dbus-string.h>
35 #error "config.h not included here"
38 #ifdef WORDS_BIGENDIAN
39 #define DBUS_COMPILER_BYTE_ORDER DBUS_BIG_ENDIAN
41 #define DBUS_COMPILER_BYTE_ORDER DBUS_LITTLE_ENDIAN
44 #define DBUS_UINT16_SWAP_LE_BE_CONSTANT(val) ((dbus_uint16_t) ( \
45 (dbus_uint16_t) ((dbus_uint16_t) (val) >> 8) | \
46 (dbus_uint16_t) ((dbus_uint16_t) (val) << 8)))
48 #define DBUS_UINT32_SWAP_LE_BE_CONSTANT(val) ((dbus_uint32_t) ( \
49 (((dbus_uint32_t) (val) & (dbus_uint32_t) 0x000000ffU) << 24) | \
50 (((dbus_uint32_t) (val) & (dbus_uint32_t) 0x0000ff00U) << 8) | \
51 (((dbus_uint32_t) (val) & (dbus_uint32_t) 0x00ff0000U) >> 8) | \
52 (((dbus_uint32_t) (val) & (dbus_uint32_t) 0xff000000U) >> 24)))
54 #ifdef DBUS_HAVE_INT64
56 #define DBUS_UINT64_SWAP_LE_BE_CONSTANT(val) ((dbus_uint64_t) ( \
57 (((dbus_uint64_t) (val) & \
58 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x00000000000000ff)) << 56) | \
59 (((dbus_uint64_t) (val) & \
60 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x000000000000ff00)) << 40) | \
61 (((dbus_uint64_t) (val) & \
62 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x0000000000ff0000)) << 24) | \
63 (((dbus_uint64_t) (val) & \
64 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x00000000ff000000)) << 8) | \
65 (((dbus_uint64_t) (val) & \
66 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x000000ff00000000)) >> 8) | \
67 (((dbus_uint64_t) (val) & \
68 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x0000ff0000000000)) >> 24) | \
69 (((dbus_uint64_t) (val) & \
70 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x00ff000000000000)) >> 40) | \
71 (((dbus_uint64_t) (val) & \
72 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0xff00000000000000)) >> 56)))
73 #endif /* DBUS_HAVE_INT64 */
75 #define DBUS_UINT16_SWAP_LE_BE(val) (DBUS_UINT16_SWAP_LE_BE_CONSTANT (val))
76 #define DBUS_INT16_SWAP_LE_BE(val) ((dbus_int16_t)DBUS_UINT16_SWAP_LE_BE_CONSTANT (val))
78 #define DBUS_UINT32_SWAP_LE_BE(val) (DBUS_UINT32_SWAP_LE_BE_CONSTANT (val))
79 #define DBUS_INT32_SWAP_LE_BE(val) ((dbus_int32_t)DBUS_UINT32_SWAP_LE_BE_CONSTANT (val))
81 #ifdef DBUS_HAVE_INT64
82 # define DBUS_UINT64_SWAP_LE_BE(val) (DBUS_UINT64_SWAP_LE_BE_CONSTANT (val))
83 # define DBUS_INT64_SWAP_LE_BE(val) ((dbus_int64_t)DBUS_UINT64_SWAP_LE_BE_CONSTANT (val))
84 #endif /* DBUS_HAVE_INT64 */
86 #ifdef WORDS_BIGENDIAN
88 # define DBUS_INT16_TO_BE(val) ((dbus_int16_t) (val))
89 # define DBUS_UINT16_TO_BE(val) ((dbus_uint16_t) (val))
90 # define DBUS_INT16_TO_LE(val) (DBUS_INT16_SWAP_LE_BE (val))
91 # define DBUS_UINT16_TO_LE(val) (DBUS_UINT16_SWAP_LE_BE (val))
92 # define DBUS_INT32_TO_BE(val) ((dbus_int32_t) (val))
93 # define DBUS_UINT32_TO_BE(val) ((dbus_uint32_t) (val))
94 # define DBUS_INT32_TO_LE(val) (DBUS_INT32_SWAP_LE_BE (val))
95 # define DBUS_UINT32_TO_LE(val) (DBUS_UINT32_SWAP_LE_BE (val))
96 # ifdef DBUS_HAVE_INT64
97 # define DBUS_INT64_TO_BE(val) ((dbus_int64_t) (val))
98 # define DBUS_UINT64_TO_BE(val) ((dbus_uint64_t) (val))
99 # define DBUS_INT64_TO_LE(val) (DBUS_INT64_SWAP_LE_BE (val))
100 # define DBUS_UINT64_TO_LE(val) (DBUS_UINT64_SWAP_LE_BE (val))
101 # endif /* DBUS_HAVE_INT64 */
103 #else /* WORDS_BIGENDIAN */
105 # define DBUS_INT16_TO_LE(val) ((dbus_int16_t) (val))
106 # define DBUS_UINT16_TO_LE(val) ((dbus_uint16_t) (val))
107 # define DBUS_INT16_TO_BE(val) ((dbus_int16_t) DBUS_UINT16_SWAP_LE_BE (val))
108 # define DBUS_UINT16_TO_BE(val) (DBUS_UINT16_SWAP_LE_BE (val))
109 # define DBUS_INT32_TO_LE(val) ((dbus_int32_t) (val))
110 # define DBUS_UINT32_TO_LE(val) ((dbus_uint32_t) (val))
111 # define DBUS_INT32_TO_BE(val) ((dbus_int32_t) DBUS_UINT32_SWAP_LE_BE (val))
112 # define DBUS_UINT32_TO_BE(val) (DBUS_UINT32_SWAP_LE_BE (val))
113 # ifdef DBUS_HAVE_INT64
114 # define DBUS_INT64_TO_LE(val) ((dbus_int64_t) (val))
115 # define DBUS_UINT64_TO_LE(val) ((dbus_uint64_t) (val))
116 # define DBUS_INT64_TO_BE(val) ((dbus_int64_t) DBUS_UINT64_SWAP_LE_BE (val))
117 # define DBUS_UINT64_TO_BE(val) (DBUS_UINT64_SWAP_LE_BE (val))
118 # endif /* DBUS_HAVE_INT64 */
121 /* The transformation is symmetric, so the FROM just maps to the TO. */
122 #define DBUS_INT16_FROM_LE(val) (DBUS_INT16_TO_LE (val))
123 #define DBUS_UINT16_FROM_LE(val) (DBUS_UINT16_TO_LE (val))
124 #define DBUS_INT16_FROM_BE(val) (DBUS_INT16_TO_BE (val))
125 #define DBUS_UINT16_FROM_BE(val) (DBUS_UINT16_TO_BE (val))
126 #define DBUS_INT32_FROM_LE(val) (DBUS_INT32_TO_LE (val))
127 #define DBUS_UINT32_FROM_LE(val) (DBUS_UINT32_TO_LE (val))
128 #define DBUS_INT32_FROM_BE(val) (DBUS_INT32_TO_BE (val))
129 #define DBUS_UINT32_FROM_BE(val) (DBUS_UINT32_TO_BE (val))
130 #ifdef DBUS_HAVE_INT64
131 # define DBUS_INT64_FROM_LE(val) (DBUS_INT64_TO_LE (val))
132 # define DBUS_UINT64_FROM_LE(val) (DBUS_UINT64_TO_LE (val))
133 # define DBUS_INT64_FROM_BE(val) (DBUS_INT64_TO_BE (val))
134 # define DBUS_UINT64_FROM_BE(val) (DBUS_UINT64_TO_BE (val))
135 #endif /* DBUS_HAVE_INT64 */
137 #ifndef DBUS_HAVE_INT64
139 * An 8-byte struct you could use to access int64 without having
144 dbus_uint32_t first32; /**< first 32 bits in the 8 bytes (beware endian issues) */
145 dbus_uint32_t second32; /**< second 32 bits in the 8 bytes (beware endian issues) */
147 #endif /* DBUS_HAVE_INT64 */
150 * A simple 8-byte value union that lets you access 8 bytes as if they
151 * were various types; useful when dealing with basic types via
152 * void pointers and varargs.
156 dbus_int16_t i16; /**< as int16 */
157 dbus_uint16_t u16; /**< as int16 */
158 dbus_int32_t i32; /**< as int32 */
159 dbus_uint32_t u32; /**< as int32 */
160 #ifdef DBUS_HAVE_INT64
161 dbus_int64_t i64; /**< as int64 */
162 dbus_uint64_t u64; /**< as int64 */
164 DBus8ByteStruct u64; /**< as 8-byte-struct */
166 double dbl; /**< as double */
167 unsigned char byt; /**< as byte */
168 char *str; /**< as char* */
171 #ifdef DBUS_DISABLE_ASSERT
172 #define _dbus_unpack_uint16(byte_order, data) \
173 (((byte_order) == DBUS_LITTLE_ENDIAN) ? \
174 DBUS_UINT16_FROM_LE (*(dbus_uint16_t*)(data)) : \
175 DBUS_UINT16_FROM_BE (*(dbus_uint16_t*)(data)))
177 #define _dbus_unpack_uint32(byte_order, data) \
178 (((byte_order) == DBUS_LITTLE_ENDIAN) ? \
179 DBUS_UINT32_FROM_LE (*(dbus_uint32_t*)(data)) : \
180 DBUS_UINT32_FROM_BE (*(dbus_uint32_t*)(data)))
183 #ifndef _dbus_unpack_uint16
184 dbus_uint16_t _dbus_unpack_uint16 (int byte_order,
185 const unsigned char *data);
188 void _dbus_pack_uint32 (dbus_uint32_t value,
190 unsigned char *data);
191 #ifndef _dbus_unpack_uint32
192 dbus_uint32_t _dbus_unpack_uint32 (int byte_order,
193 const unsigned char *data);
196 dbus_bool_t _dbus_marshal_set_basic (DBusString *str,
203 dbus_bool_t _dbus_marshal_write_basic (DBusString *str,
209 dbus_bool_t _dbus_marshal_write_fixed_multi (DBusString *str,
216 void _dbus_marshal_read_basic (const DBusString *str,
222 void _dbus_marshal_read_fixed_multi (const DBusString *str,
229 void _dbus_marshal_skip_basic (const DBusString *str,
233 void _dbus_marshal_skip_array (const DBusString *str,
237 void _dbus_marshal_set_uint32 (DBusString *str,
241 dbus_uint32_t _dbus_marshal_read_uint32 (const DBusString *str,
245 dbus_bool_t _dbus_type_is_valid (int typecode);
246 int _dbus_type_get_alignment (int typecode);
247 dbus_bool_t _dbus_type_is_fixed (int typecode);
248 int _dbus_type_get_alignment (int typecode);
249 const char* _dbus_type_to_string (int typecode);
251 int _dbus_first_type_in_signature (const DBusString *str,
254 int _dbus_first_type_in_signature_c_str (const char *str,
257 void _dbus_swap_array (unsigned char *data,
261 #endif /* DBUS_MARSHAL_BASIC_H */