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00001 /* -*- mode: C; c-file-style: "gnu" -*- */ 00002 /* dbus-marshal-basic.h Marshalling routines for basic (primitive) types 00003 * 00004 * Copyright (C) 2002 CodeFactory AB 00005 * Copyright (C) 2004, 2005 Red Hat, Inc. 00006 * 00007 * Licensed under the Academic Free License version 2.1 00008 * 00009 * This program is free software; you can redistribute it and/or modify 00010 * it under the terms of the GNU General Public License as published by 00011 * the Free Software Foundation; either version 2 of the License, or 00012 * (at your option) any later version. 00013 * 00014 * This program is distributed in the hope that it will be useful, 00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00017 * GNU General Public License for more details. 00018 * 00019 * You should have received a copy of the GNU General Public License 00020 * along with this program; if not, write to the Free Software 00021 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00022 * 00023 */ 00024 00025 #ifndef DBUS_MARSHAL_BASIC_H 00026 #define DBUS_MARSHAL_BASIC_H 00027 00028 #include "config.h" 00029 #include <dbus/dbus-protocol.h> 00030 #include <dbus/dbus-types.h> 00031 #include <dbus/dbus-arch-deps.h> 00032 #include <dbus/dbus-string.h> 00033 00034 #ifndef PACKAGE 00035 #error "config.h not included here" 00036 #endif 00037 00038 #ifdef WORDS_BIGENDIAN 00039 #define DBUS_COMPILER_BYTE_ORDER DBUS_BIG_ENDIAN 00040 #else 00041 #define DBUS_COMPILER_BYTE_ORDER DBUS_LITTLE_ENDIAN 00042 #endif 00043 00044 #define DBUS_UINT16_SWAP_LE_BE_CONSTANT(val) ((dbus_uint16_t) ( \ 00045 (dbus_uint16_t) ((dbus_uint16_t) (val) >> 8) | \ 00046 (dbus_uint16_t) ((dbus_uint16_t) (val) << 8))) 00047 00048 #define DBUS_UINT32_SWAP_LE_BE_CONSTANT(val) ((dbus_uint32_t) ( \ 00049 (((dbus_uint32_t) (val) & (dbus_uint32_t) 0x000000ffU) << 24) | \ 00050 (((dbus_uint32_t) (val) & (dbus_uint32_t) 0x0000ff00U) << 8) | \ 00051 (((dbus_uint32_t) (val) & (dbus_uint32_t) 0x00ff0000U) >> 8) | \ 00052 (((dbus_uint32_t) (val) & (dbus_uint32_t) 0xff000000U) >> 24))) 00053 00054 #ifdef DBUS_HAVE_INT64 00055 00056 #define DBUS_UINT64_SWAP_LE_BE_CONSTANT(val) ((dbus_uint64_t) ( \ 00057 (((dbus_uint64_t) (val) & \ 00058 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x00000000000000ff)) << 56) | \ 00059 (((dbus_uint64_t) (val) & \ 00060 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x000000000000ff00)) << 40) | \ 00061 (((dbus_uint64_t) (val) & \ 00062 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x0000000000ff0000)) << 24) | \ 00063 (((dbus_uint64_t) (val) & \ 00064 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x00000000ff000000)) << 8) | \ 00065 (((dbus_uint64_t) (val) & \ 00066 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x000000ff00000000)) >> 8) | \ 00067 (((dbus_uint64_t) (val) & \ 00068 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x0000ff0000000000)) >> 24) | \ 00069 (((dbus_uint64_t) (val) & \ 00070 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0x00ff000000000000)) >> 40) | \ 00071 (((dbus_uint64_t) (val) & \ 00072 (dbus_uint64_t) DBUS_UINT64_CONSTANT (0xff00000000000000)) >> 56))) 00073 #endif /* DBUS_HAVE_INT64 */ 00074 00075 #define DBUS_UINT16_SWAP_LE_BE(val) (DBUS_UINT16_SWAP_LE_BE_CONSTANT (val)) 00076 #define DBUS_INT16_SWAP_LE_BE(val) ((dbus_int16_t)DBUS_UINT16_SWAP_LE_BE_CONSTANT (val)) 00077 00078 #define DBUS_UINT32_SWAP_LE_BE(val) (DBUS_UINT32_SWAP_LE_BE_CONSTANT (val)) 00079 #define DBUS_INT32_SWAP_LE_BE(val) ((dbus_int32_t)DBUS_UINT32_SWAP_LE_BE_CONSTANT (val)) 00080 00081 #ifdef DBUS_HAVE_INT64 00082 # define DBUS_UINT64_SWAP_LE_BE(val) (DBUS_UINT64_SWAP_LE_BE_CONSTANT (val)) 00083 # define DBUS_INT64_SWAP_LE_BE(val) ((dbus_int64_t)DBUS_UINT64_SWAP_LE_BE_CONSTANT (val)) 00084 #endif /* DBUS_HAVE_INT64 */ 00085 00086 #ifdef WORDS_BIGENDIAN 00087 00088 # define DBUS_INT16_TO_BE(val) ((dbus_int16_t) (val)) 00089 # define DBUS_UINT16_TO_BE(val) ((dbus_uint16_t) (val)) 00090 # define DBUS_INT16_TO_LE(val) (DBUS_INT16_SWAP_LE_BE (val)) 00091 # define DBUS_UINT16_TO_LE(val) (DBUS_UINT16_SWAP_LE_BE (val)) 00092 # define DBUS_INT32_TO_BE(val) ((dbus_int32_t) (val)) 00093 # define DBUS_UINT32_TO_BE(val) ((dbus_uint32_t) (val)) 00094 # define DBUS_INT32_TO_LE(val) (DBUS_INT32_SWAP_LE_BE (val)) 00095 # define DBUS_UINT32_TO_LE(val) (DBUS_UINT32_SWAP_LE_BE (val)) 00096 # ifdef DBUS_HAVE_INT64 00097 # define DBUS_INT64_TO_BE(val) ((dbus_int64_t) (val)) 00098 # define DBUS_UINT64_TO_BE(val) ((dbus_uint64_t) (val)) 00099 # define DBUS_INT64_TO_LE(val) (DBUS_INT64_SWAP_LE_BE (val)) 00100 # define DBUS_UINT64_TO_LE(val) (DBUS_UINT64_SWAP_LE_BE (val)) 00101 # endif /* DBUS_HAVE_INT64 */ 00102 00103 #else /* WORDS_BIGENDIAN */ 00104 00105 # define DBUS_INT16_TO_LE(val) ((dbus_int16_t) (val)) 00106 # define DBUS_UINT16_TO_LE(val) ((dbus_uint16_t) (val)) 00107 # define DBUS_INT16_TO_BE(val) ((dbus_int16_t) DBUS_UINT16_SWAP_LE_BE (val)) 00108 # define DBUS_UINT16_TO_BE(val) (DBUS_UINT16_SWAP_LE_BE (val)) 00109 # define DBUS_INT32_TO_LE(val) ((dbus_int32_t) (val)) 00110 # define DBUS_UINT32_TO_LE(val) ((dbus_uint32_t) (val)) 00111 # define DBUS_INT32_TO_BE(val) ((dbus_int32_t) DBUS_UINT32_SWAP_LE_BE (val)) 00112 # define DBUS_UINT32_TO_BE(val) (DBUS_UINT32_SWAP_LE_BE (val)) 00113 # ifdef DBUS_HAVE_INT64 00114 # define DBUS_INT64_TO_LE(val) ((dbus_int64_t) (val)) 00115 # define DBUS_UINT64_TO_LE(val) ((dbus_uint64_t) (val)) 00116 # define DBUS_INT64_TO_BE(val) ((dbus_int64_t) DBUS_UINT64_SWAP_LE_BE (val)) 00117 # define DBUS_UINT64_TO_BE(val) (DBUS_UINT64_SWAP_LE_BE (val)) 00118 # endif /* DBUS_HAVE_INT64 */ 00119 #endif 00120 00121 /* The transformation is symmetric, so the FROM just maps to the TO. */ 00122 #define DBUS_INT16_FROM_LE(val) (DBUS_INT16_TO_LE (val)) 00123 #define DBUS_UINT16_FROM_LE(val) (DBUS_UINT16_TO_LE (val)) 00124 #define DBUS_INT16_FROM_BE(val) (DBUS_INT16_TO_BE (val)) 00125 #define DBUS_UINT16_FROM_BE(val) (DBUS_UINT16_TO_BE (val)) 00126 #define DBUS_INT32_FROM_LE(val) (DBUS_INT32_TO_LE (val)) 00127 #define DBUS_UINT32_FROM_LE(val) (DBUS_UINT32_TO_LE (val)) 00128 #define DBUS_INT32_FROM_BE(val) (DBUS_INT32_TO_BE (val)) 00129 #define DBUS_UINT32_FROM_BE(val) (DBUS_UINT32_TO_BE (val)) 00130 #ifdef DBUS_HAVE_INT64 00131 # define DBUS_INT64_FROM_LE(val) (DBUS_INT64_TO_LE (val)) 00132 # define DBUS_UINT64_FROM_LE(val) (DBUS_UINT64_TO_LE (val)) 00133 # define DBUS_INT64_FROM_BE(val) (DBUS_INT64_TO_BE (val)) 00134 # define DBUS_UINT64_FROM_BE(val) (DBUS_UINT64_TO_BE (val)) 00135 #endif /* DBUS_HAVE_INT64 */ 00136 00137 #ifndef DBUS_HAVE_INT64 00138 00142 typedef struct 00143 { 00144 dbus_uint32_t first32; 00145 dbus_uint32_t second32; 00146 } DBus8ByteStruct; 00147 #endif /* DBUS_HAVE_INT64 */ 00148 00154 typedef union 00155 { 00156 dbus_int16_t i16; 00157 dbus_uint16_t u16; 00158 dbus_int32_t i32; 00159 dbus_uint32_t u32; 00160 #ifdef DBUS_HAVE_INT64 00161 dbus_int64_t i64; 00162 dbus_uint64_t u64; 00163 #else 00164 DBus8ByteStruct u64; 00165 #endif 00166 double dbl; 00167 unsigned char byt; 00168 char *str; 00169 } DBusBasicValue; 00170 00171 #ifdef DBUS_DISABLE_ASSERT 00172 #define _dbus_unpack_uint16(byte_order, data) \ 00173 (((byte_order) == DBUS_LITTLE_ENDIAN) ? \ 00174 DBUS_UINT16_FROM_LE (*(dbus_uint16_t*)(data)) : \ 00175 DBUS_UINT16_FROM_BE (*(dbus_uint16_t*)(data))) 00176 00177 #define _dbus_unpack_uint32(byte_order, data) \ 00178 (((byte_order) == DBUS_LITTLE_ENDIAN) ? \ 00179 DBUS_UINT32_FROM_LE (*(dbus_uint32_t*)(data)) : \ 00180 DBUS_UINT32_FROM_BE (*(dbus_uint32_t*)(data))) 00181 #endif 00182 00183 #ifndef _dbus_unpack_uint16 00184 dbus_uint16_t _dbus_unpack_uint16 (int byte_order, 00185 const unsigned char *data); 00186 #endif 00187 00188 void _dbus_pack_uint32 (dbus_uint32_t value, 00189 int byte_order, 00190 unsigned char *data); 00191 #ifndef _dbus_unpack_uint32 00192 dbus_uint32_t _dbus_unpack_uint32 (int byte_order, 00193 const unsigned char *data); 00194 #endif 00195 00196 dbus_bool_t _dbus_marshal_set_basic (DBusString *str, 00197 int pos, 00198 int type, 00199 const void *value, 00200 int byte_order, 00201 int *old_end_pos, 00202 int *new_end_pos); 00203 dbus_bool_t _dbus_marshal_write_basic (DBusString *str, 00204 int insert_at, 00205 int type, 00206 const void *value, 00207 int byte_order, 00208 int *pos_after); 00209 dbus_bool_t _dbus_marshal_write_fixed_multi (DBusString *str, 00210 int insert_at, 00211 int element_type, 00212 const void *value, 00213 int n_elements, 00214 int byte_order, 00215 int *pos_after); 00216 void _dbus_marshal_read_basic (const DBusString *str, 00217 int pos, 00218 int type, 00219 void *value, 00220 int byte_order, 00221 int *new_pos); 00222 void _dbus_marshal_read_fixed_multi (const DBusString *str, 00223 int pos, 00224 int element_type, 00225 void *value, 00226 int n_elements, 00227 int byte_order, 00228 int *new_pos); 00229 void _dbus_marshal_skip_basic (const DBusString *str, 00230 int type, 00231 int byte_order, 00232 int *pos); 00233 void _dbus_marshal_skip_array (const DBusString *str, 00234 int element_type, 00235 int byte_order, 00236 int *pos); 00237 void _dbus_marshal_set_uint32 (DBusString *str, 00238 int pos, 00239 dbus_uint32_t value, 00240 int byte_order); 00241 dbus_uint32_t _dbus_marshal_read_uint32 (const DBusString *str, 00242 int pos, 00243 int byte_order, 00244 int *new_pos); 00245 dbus_bool_t _dbus_type_is_valid (int typecode); 00246 int _dbus_type_get_alignment (int typecode); 00247 dbus_bool_t _dbus_type_is_fixed (int typecode); 00248 int _dbus_type_get_alignment (int typecode); 00249 const char* _dbus_type_to_string (int typecode); 00250 00251 int _dbus_first_type_in_signature (const DBusString *str, 00252 int pos); 00253 00254 int _dbus_first_type_in_signature_c_str (const char *str, 00255 int pos); 00256 00257 void _dbus_swap_array (unsigned char *data, 00258 int n_elements, 00259 int alignment); 00260 00261 #endif /* DBUS_MARSHAL_BASIC_H */