codegen/valadbusclientmodule.vala

   1 /* valadbusclientmodule.vala
   2  *
   3  * Copyright (C) 2007-2010  Jürg Billeter
   4 *  Copyright (C) 2008  Philip Van Hoof
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  19  *
  20  * Author:
  21  *      Jürg Billeter <j@bitron.ch>
  22  *      Philip Van Hoof <pvanhoof@gnome.org>
  23  */
  24
  25 using GLib;
  26
  27 /**
  28  * The link between a dynamic method and generated code.
  29  */
  30 public class Vala.DBusClientModule : DBusModule {
  31         int dynamic_property_id;
  32
  33         string get_dynamic_dbus_name (string vala_name) {
  34                 // TODO switch default to no transformation as soon as we have static D-Bus client support
  35                 // keep transformation by default for static D-Bus client and server support
  36                 if (context.dbus_transformation) {
  37                         return Symbol.lower_case_to_camel_case (vala_name);
  38                 } else {
  39                         return vala_name;
  40                 }
  41         }
  42
  43         public CCodeConstant get_dbus_timeout (Symbol symbol) {
  44                 int timeout = -1;
  45
  46                 var dbus = symbol.get_attribute ("DBus");
  47                 if (dbus != null && dbus.has_argument ("timeout")) {
  48                         timeout = dbus.get_integer ("timeout");
  49                 } else if (symbol.parent_symbol != null) {
  50                         return get_dbus_timeout (symbol.parent_symbol);
  51                 }
  52
  53                 return new CCodeConstant (timeout.to_string ());
  54         }
  55
  56         public static bool is_dbus_no_reply (CodeNode node) {
  57                 var dbus_attribute = node.get_attribute ("DBus");
  58                 if (dbus_attribute != null
  59                     && dbus_attribute.has_argument ("no_reply")
  60                     && dbus_attribute.get_bool ("no_reply")) {
  61                         return true;
  62                 }
  63
  64                 return false;
  65         }
  66
  67         bool has_dbus_error (List<DataType> error_types) {
  68                 foreach (DataType error_type in error_types) {
  69                         if (((ErrorType) error_type).error_domain.get_full_name () == "DBus.Error") {
  70                                 return true;
  71                         }
  72                 }
  73                 return false;
  74         }
  75
  76         public override void generate_dynamic_method_wrapper (DynamicMethod method) {
  77                 var dynamic_method = (DynamicMethod) method;
  78
  79                 var func = new CCodeFunction (method.get_cname ());
  80                 func.modifiers = CCodeModifiers.STATIC;
  81
  82                 var cparam_map = new HashMap<int,CCodeFormalParameter> (direct_hash, direct_equal);
  83
  84                 generate_cparameters (method, cfile, cparam_map, func);
  85
  86                 var block = new CCodeBlock ();
  87                 if (dynamic_method.dynamic_type.data_type == dbus_object_type) {
  88                         generate_dbus_method_wrapper (method, block);
  89                 } else {
  90                         Report.error (method.source_reference, "dynamic methods are not supported for `%s'".printf (dynamic_method.dynamic_type.to_string ()));
  91                 }
  92
  93                 // append to C source file
  94                 cfile.add_type_member_declaration (func.copy ());
  95
  96                 func.block = block;
  97                 cfile.add_function (func);
  98         }
  99
 100         void generate_dbus_method_wrapper (Method method, CCodeBlock block) {
 101                 var dynamic_method = (DynamicMethod) method;
 102
 103                 var expr = dynamic_method.invocation;
 104
 105                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_begin_call"));
 106
 107                 ccall.add_argument (new CCodeIdentifier ("self"));
 108
 109                 bool found_out = false;
 110                 Expression callback = null;
 111                 int callback_index = -1;
 112                 int arg_index = 1;
 113                 foreach (Expression arg in expr.get_argument_list ()) {
 114                         if (arg.symbol_reference is Method) {
 115                                 // callback
 116                                 if (callback != null) {
 117                                         Report.error (expr.source_reference, "only one reply callback may be specified in invocation of DBus method");
 118                                         expr.error = true;
 119                                         return;
 120                                 } else if (found_out) {
 121                                         Report.error (expr.source_reference, "out argument and reply callback conflict in invocation of DBus method");
 122                                         expr.error = true;
 123                                         return;
 124                                 }
 125                                 callback = arg;
 126                                 callback_index = arg_index;
 127                         } else if (arg is UnaryExpression && ((UnaryExpression) arg).operator == UnaryOperator.OUT) {
 128                                 // out arg
 129                                 if (callback != null) {
 130                                         Report.error (expr.source_reference, "out argument and reply callback conflict in invocation of DBus method");
 131                                         expr.error = true;
 132                                         return;
 133                                 }
 134                                 found_out = true;
 135                         } else {
 136                                 // in arg
 137                                 if (callback != null || found_out) {
 138                                         Report.error (expr.source_reference, "in argument must not follow out argument or reply callback in invocation of DBus method");
 139                                         expr.error = true;
 140                                         return;
 141                                 }
 142                         }
 143                         arg_index++;
 144                 }
 145
 146                 ccall.add_argument (new CCodeConstant ("\"%s\"".printf (get_dynamic_dbus_name (method.name))));
 147
 148                 if (callback != null) {
 149                         var reply_method = (Method) callback.symbol_reference;
 150
 151                         var cb_fun = new CCodeFunction ("_%s_cb".printf (reply_method.get_cname ()), "void");
 152                         cb_fun.modifiers = CCodeModifiers.STATIC;
 153                         cb_fun.add_parameter (new CCodeFormalParameter ("proxy", "DBusGProxy*"));
 154                         cb_fun.add_parameter (new CCodeFormalParameter ("call", "DBusGProxyCall*"));
 155                         cb_fun.add_parameter (new CCodeFormalParameter ("user_data", "void*"));
 156                         cb_fun.block = new CCodeBlock ();
 157                         var cerrdecl = new CCodeDeclaration ("GError*");
 158                         cerrdecl.add_declarator (new CCodeVariableDeclarator ("error", new CCodeConstant ("NULL")));
 159                         cb_fun.block.add_statement (cerrdecl);
 160                         var cend_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_end_call"));
 161                         cend_call.add_argument (new CCodeIdentifier ("proxy"));
 162                         cend_call.add_argument (new CCodeIdentifier ("call"));
 163                         cend_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("error")));
 164                         var creply_call = new CCodeFunctionCall ((CCodeExpression) callback.ccodenode);
 165                         if (reply_method.binding != MemberBinding.STATIC) {
 166                                 creply_call.add_argument (new CCodeIdentifier ("user_data"));
 167                         }
 168                         int param_count = reply_method.get_parameters ().size;
 169                         int i = 0;
 170                         foreach (FormalParameter param in reply_method.get_parameters ()) {
 171                                 if ((++i) == param_count) {
 172                                         if (!(param.variable_type is ErrorType)) {
 173                                                 Report.error (null, "DBus reply callbacks must end with GLib.Error argument");
 174                                                 return;
 175                                         }
 176
 177                                         break;
 178                                 }
 179                                 if (param.variable_type is ArrayType && ((ArrayType) param.variable_type).element_type.data_type != string_type.data_type) {
 180                                         var array_type = (ArrayType) param.variable_type;
 181                                         CCodeDeclaration cdecl;
 182                                         if (dbus_use_ptr_array (array_type)) {
 183                                                 cdecl = new CCodeDeclaration ("GPtrArray*");
 184                                         } else {
 185                                                 cdecl = new CCodeDeclaration ("GArray*");
 186                                         }
 187                                         cdecl.add_declarator (new CCodeVariableDeclarator (param.name));
 188                                         cb_fun.block.add_statement (cdecl);
 189                                         cend_call.add_argument (get_dbus_g_type (array_type));
 190                                         cend_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier (param.name)));
 191                                         creply_call.add_argument (new CCodeCastExpression (new CCodeMemberAccess.pointer (new CCodeIdentifier (param.name), dbus_use_ptr_array (array_type) ? "pdata" : "data"), array_type.get_cname ()));
 192                                         creply_call.add_argument (new CCodeMemberAccess.pointer (new CCodeIdentifier (param.name), "len"));
 193                                 } else {
 194                                         var cdecl = new CCodeDeclaration (param.variable_type.get_cname ());
 195                                         cdecl.add_declarator (new CCodeVariableDeclarator (param.name));
 196                                         cb_fun.block.add_statement (cdecl);
 197                                         cend_call.add_argument (get_dbus_g_type (param.variable_type));
 198                                         cend_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier (param.name)));
 199                                         creply_call.add_argument (new CCodeIdentifier (param.name));
 200
 201                                         if (param.variable_type is ArrayType && ((ArrayType) param.variable_type).element_type.data_type == string_type.data_type) {
 202                                                 var cstrvlen = new CCodeFunctionCall (new CCodeIdentifier ("g_strv_length"));
 203                                                 cstrvlen.add_argument (new CCodeIdentifier (param.name));
 204                                                 creply_call.add_argument (cstrvlen);
 205                                         }
 206
 207                                 }
 208                         }
 209                         cend_call.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 210                         cb_fun.block.add_statement (new CCodeExpressionStatement (cend_call));
 211                         creply_call.add_argument (new CCodeIdentifier ("error"));
 212                         cb_fun.block.add_statement (new CCodeExpressionStatement (creply_call));
 213
 214                         CCodeExpression target = new CCodeConstant ("param%d_target".printf (callback_index));
 215                         var ma = (MemberAccess) callback;
 216                         if (reply_method.binding != MemberBinding.STATIC && ma.inner.value_type.data_type != null && ma.inner.value_type.data_type.is_reference_counting ()) {
 217                                 // unref user_data after creply_call
 218                                 var unref_call = new CCodeFunctionCall (get_destroy_func_expression (ma.inner.value_type));
 219                                 unref_call.add_argument (new CCodeIdentifier ("user_data"));
 220                                 cb_fun.block.add_statement (new CCodeExpressionStatement (unref_call));
 221
 222                                 // ref target for ccall
 223                                 var ref_call = new CCodeFunctionCall (get_dup_func_expression (ma.inner.value_type, callback.source_reference));
 224                                 ref_call.add_argument (target);
 225                                 target = ref_call;
 226                         }
 227
 228                         if (!cfile.add_declaration (cb_fun.name)) {
 229                                 // avoid duplicate function definition
 230                                 cfile.add_function (cb_fun);
 231                         }
 232
 233                         ccall.add_argument (new CCodeIdentifier (cb_fun.name));
 234                         ccall.add_argument (target);
 235                         ccall.add_argument (new CCodeConstant ("NULL"));
 236                 } else {
 237                         ccall.call = new CCodeIdentifier ("dbus_g_proxy_call");
 238
 239                         ccall.add_argument (new CCodeIdentifier ("error"));
 240                 }
 241
 242                 foreach (FormalParameter param in method.get_parameters ()) {
 243                         if (param.variable_type is MethodType
 244                             || param.variable_type is DelegateType) {
 245                                 // callback parameter
 246                                 break;
 247                         }
 248
 249                         if (param.direction != ParameterDirection.IN) {
 250                                 continue;
 251                         }
 252
 253                         var array_type = param.variable_type as ArrayType;
 254                         if (array_type != null) {
 255                                 // array parameter
 256                                 if (array_type.element_type.data_type != string_type.data_type) {
 257                                         // non-string arrays (use GArray)
 258                                         ccall.add_argument (get_dbus_g_type (array_type));
 259
 260                                         var sizeof_call = new CCodeFunctionCall (new CCodeIdentifier ("sizeof"));
 261                                         sizeof_call.add_argument (new CCodeIdentifier (array_type.element_type.get_cname ()));
 262
 263                                         CCodeDeclaration cdecl;
 264                                         CCodeFunctionCall array_construct;
 265                                         if (dbus_use_ptr_array (array_type)) {
 266                                                 cdecl = new CCodeDeclaration ("GPtrArray*");
 267
 268                                                 array_construct = new CCodeFunctionCall (new CCodeIdentifier ("g_ptr_array_sized_new"));
 269                                                 array_construct.add_argument (new CCodeIdentifier (get_array_length_cname (param.name, 1)));
 270                                         } else {
 271                                                 cdecl = new CCodeDeclaration ("GArray*");
 272
 273                                                 array_construct = new CCodeFunctionCall (new CCodeIdentifier ("g_array_new"));
 274                                                 array_construct.add_argument (new CCodeConstant ("TRUE"));
 275                                                 array_construct.add_argument (new CCodeConstant ("TRUE"));
 276                                                 array_construct.add_argument (sizeof_call);
 277                                         }
 278
 279                                         cdecl.add_declarator (new CCodeVariableDeclarator ("dbus_%s".printf (param.name), array_construct));
 280                                         block.add_statement (cdecl);
 281
 282                                         if (dbus_use_ptr_array (array_type)) {
 283                                                 cfile.add_include ("string.h");
 284
 285                                                 var memcpy_call = new CCodeFunctionCall (new CCodeIdentifier ("memcpy"));
 286                                                 memcpy_call.add_argument (new CCodeMemberAccess.pointer (new CCodeIdentifier ("dbus_%s".printf (param.name)), "pdata"));
 287                                                 memcpy_call.add_argument (new CCodeIdentifier (param.name));
 288                                                 memcpy_call.add_argument (new CCodeBinaryExpression (CCodeBinaryOperator.MUL, new CCodeIdentifier (get_array_length_cname (param.name, 1)), sizeof_call));
 289                                                 block.add_statement (new CCodeExpressionStatement (memcpy_call));
 290
 291                                                 var len_assignment = new CCodeAssignment (new CCodeMemberAccess.pointer (new CCodeIdentifier ("dbus_%s".printf (param.name)), "len"), new CCodeIdentifier (get_array_length_cname (param.name, 1)));
 292                                                 block.add_statement (new CCodeExpressionStatement (len_assignment));
 293                                         } else {
 294                                                 var cappend_call = new CCodeFunctionCall (new CCodeIdentifier ("g_array_append_vals"));
 295                                                 cappend_call.add_argument (new CCodeIdentifier ("dbus_%s".printf (param.name)));
 296                                                 cappend_call.add_argument (new CCodeIdentifier (param.name));
 297                                                 cappend_call.add_argument (new CCodeIdentifier (get_array_length_cname (param.name, 1)));
 298                                                 block.add_statement (new CCodeExpressionStatement (cappend_call));
 299                                         }
 300
 301                                         ccall.add_argument (new CCodeIdentifier ("dbus_%s".printf (param.name)));
 302                                 } else {
 303                                         // string arrays
 304                                         ccall.add_argument (new CCodeIdentifier ("G_TYPE_STRV"));
 305                                         ccall.add_argument (new CCodeIdentifier (param.name));
 306                                 }
 307                         } else if (get_type_signature (param.variable_type).has_prefix ("(")) {
 308                                 // struct parameter
 309                                 var st = (Struct) param.variable_type.data_type;
 310
 311                                 var array_construct = new CCodeFunctionCall (new CCodeIdentifier ("g_value_array_new"));
 312                                 array_construct.add_argument (new CCodeConstant ("0"));
 313
 314                                 var cdecl = new CCodeDeclaration ("GValueArray*");
 315                                 cdecl.add_declarator (new CCodeVariableDeclarator ("dbus_%s".printf (param.name), array_construct));
 316                                 block.add_statement (cdecl);
 317
 318                                 foreach (Field f in st.get_fields ()) {
 319                                         if (f.binding != MemberBinding.INSTANCE) {
 320                                                 continue;
 321                                         }
 322
 323                                         string val_name = "val_%s_%s".printf (param.name, f.name);
 324
 325                                         // 0-initialize struct with struct initializer { 0 }
 326                                         var cvalinit = new CCodeInitializerList ();
 327                                         cvalinit.append (new CCodeConstant ("0"));
 328
 329                                         var cval_decl = new CCodeDeclaration ("GValue");
 330                                         cval_decl.add_declarator (new CCodeVariableDeclarator.zero (val_name, cvalinit));
 331                                         block.add_statement (cval_decl);
 332
 333                                         var val_ptr = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier (val_name));
 334
 335                                         var cinit_call = new CCodeFunctionCall (new CCodeIdentifier ("g_value_init"));
 336                                         cinit_call.add_argument (val_ptr);
 337                                         cinit_call.add_argument (new CCodeIdentifier (f.variable_type.data_type.get_type_id ()));
 338                                         block.add_statement (new CCodeExpressionStatement (cinit_call));
 339
 340                                         var cset_call = new CCodeFunctionCall (new CCodeIdentifier (f.variable_type.data_type.get_set_value_function ()));
 341                                         cset_call.add_argument (val_ptr);
 342                                         cset_call.add_argument (new CCodeMemberAccess.pointer (new CCodeIdentifier (param.name), f.name));
 343                                         block.add_statement (new CCodeExpressionStatement (cset_call));
 344
 345                                         var cappend_call = new CCodeFunctionCall (new CCodeIdentifier ("g_value_array_append"));
 346                                         cappend_call.add_argument (new CCodeIdentifier ("dbus_%s".printf (param.name)));
 347                                         cappend_call.add_argument (val_ptr);
 348                                         block.add_statement (new CCodeExpressionStatement (cappend_call));
 349                                 }
 350
 351                                 ccall.add_argument (get_dbus_g_type (param.variable_type));
 352                                 ccall.add_argument (new CCodeIdentifier ("dbus_%s".printf (param.name)));
 353                         } else {
 354                                 ccall.add_argument (get_dbus_g_type (param.variable_type));
 355                                 ccall.add_argument (new CCodeIdentifier (param.name));
 356                         }
 357                 }
 358
 359                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 360
 361                 var out_marshalling_fragment = new CCodeFragment ();
 362
 363                 foreach (FormalParameter param in method.get_parameters ()) {
 364                         if (param.variable_type is MethodType) {
 365                                 // callback parameter
 366                                 break;
 367                         }
 368
 369                         if (param.direction != ParameterDirection.OUT) {
 370                                 continue;
 371                         }
 372
 373                         if (get_type_signature (param.variable_type).has_prefix ("(")) {
 374                                 // struct output parameter
 375                                 var st = (Struct) param.variable_type.data_type;
 376
 377                                 var cdecl = new CCodeDeclaration ("GValueArray*");
 378                                 cdecl.add_declarator (new CCodeVariableDeclarator ("dbus_%s".printf (param.name)));
 379                                 block.add_statement (cdecl);
 380
 381                                 int i = 0;
 382                                 foreach (Field f in st.get_fields ()) {
 383                                         if (f.binding != MemberBinding.INSTANCE) {
 384                                                 continue;
 385                                         }
 386
 387                                         var cget_call = new CCodeFunctionCall (new CCodeIdentifier (f.variable_type.data_type.get_get_value_function ()));
 388                                         cget_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeElementAccess (new CCodeMemberAccess.pointer (new CCodeIdentifier ("dbus_%s".printf (param.name)), "values"), new CCodeConstant (i.to_string ()))));
 389
 390                                         var converted_value = cget_call;
 391
 392                                         if (requires_copy (f.variable_type)) {
 393                                                 var dupexpr = get_dup_func_expression (f.variable_type, expr.source_reference);
 394                                                 converted_value = new CCodeFunctionCall (dupexpr);
 395                                                 converted_value.add_argument (cget_call);
 396                                         }
 397
 398                                         var assign = new CCodeAssignment (new CCodeMemberAccess.pointer (new CCodeIdentifier (param.name), f.name), converted_value);
 399                                         out_marshalling_fragment.append (new CCodeExpressionStatement (assign));
 400
 401                                         i++;
 402                                 }
 403
 404                                 ccall.add_argument (get_dbus_g_type (param.variable_type));
 405                                 ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("dbus_%s".printf (param.name))));
 406                         } else {
 407                                 ccall.add_argument (get_dbus_g_type (param.variable_type));
 408                                 ccall.add_argument (new CCodeIdentifier (param.name));
 409                         }
 410                 }
 411
 412                 if (!(method.return_type is VoidType)) {
 413                         // synchronous D-Bus method call with reply
 414                         ccall.add_argument (get_dbus_g_type (method.return_type));
 415
 416                         var array_type = method.return_type as ArrayType;
 417                         if (array_type != null && array_type.element_type.data_type != string_type.data_type) {
 418                                 // non-string arrays (use GArray)
 419                                 CCodeDeclaration cdecl;
 420                                 if (dbus_use_ptr_array (array_type)) {
 421                                         cdecl = new CCodeDeclaration ("GPtrArray*");
 422                                 } else {
 423                                         cdecl = new CCodeDeclaration ("GArray*");
 424                                 }
 425                                 cdecl.add_declarator (new CCodeVariableDeclarator ("result"));
 426                                 block.add_statement (cdecl);
 427
 428                                 ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("result")));
 429                                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 430
 431                                 block.add_statement (new CCodeExpressionStatement (ccall));
 432
 433                                 // don't access result when error occured
 434                                 var creturnblock = new CCodeBlock ();
 435                                 creturnblock.add_statement (new CCodeReturnStatement (default_value_for_type (method.return_type, false)));
 436                                 var cerrorif = new CCodeIfStatement (new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("error")), creturnblock);
 437                                 block.add_statement (cerrorif);
 438
 439                                 block.add_statement (out_marshalling_fragment);
 440
 441                                 // *result_length1 = result->len;
 442                                 var garray_length = new CCodeMemberAccess.pointer (new CCodeIdentifier ("result"), "len");
 443                                 var result_length = new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("result_length1"));
 444                                 var assign = new CCodeAssignment (result_length, garray_length);
 445                                 block.add_statement (new CCodeExpressionStatement (assign));
 446
 447                                 // return result->data;
 448                                 block.add_statement (new CCodeReturnStatement (new CCodeCastExpression (new CCodeMemberAccess.pointer (new CCodeIdentifier ("result"), dbus_use_ptr_array (array_type) ? "pdata" : "data"), method.return_type.get_cname ())));
 449                         } else if (method.return_type.is_real_non_null_struct_type ()) {
 450                                 // structs are returned via out parameter
 451                                 var st = (Struct) method.return_type.data_type;
 452
 453                                 if (st.get_full_name () == "GLib.Value") {
 454                                         ccall.add_argument (new CCodeIdentifier ("result"));
 455                                         ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 456
 457                                         block.add_statement (new CCodeExpressionStatement (ccall));
 458                                 } else {
 459                                         var cdecl = new CCodeDeclaration ("GValueArray*");
 460                                         cdecl.add_declarator (new CCodeVariableDeclarator ("dbus_result"));
 461                                         block.add_statement (cdecl);
 462
 463                                         int i = 0;
 464                                         foreach (Field f in st.get_fields ()) {
 465                                                 if (f.binding != MemberBinding.INSTANCE) {
 466                                                         continue;
 467                                                 }
 468
 469                                                 var cget_call = new CCodeFunctionCall (new CCodeIdentifier (f.variable_type.data_type.get_get_value_function ()));
 470                                                 cget_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeElementAccess (new CCodeMemberAccess.pointer (new CCodeIdentifier ("dbus_result"), "values"), new CCodeConstant (i.to_string ()))));
 471
 472                                                 var converted_value = cget_call;
 473
 474                                                 if (requires_copy (f.variable_type)) {
 475                                                         var dupexpr = get_dup_func_expression (f.variable_type, expr.source_reference);
 476                                                         converted_value = new CCodeFunctionCall (dupexpr);
 477                                                         converted_value.add_argument (cget_call);
 478                                                 }
 479
 480                                                 var assign = new CCodeAssignment (new CCodeMemberAccess.pointer (new CCodeIdentifier ("result"), f.name), converted_value);
 481                                                 out_marshalling_fragment.append (new CCodeExpressionStatement (assign));
 482
 483                                                 i++;
 484                                         }
 485
 486                                         ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("dbus_result")));
 487                                         ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 488
 489                                         block.add_statement (new CCodeExpressionStatement (ccall));
 490                                 }
 491
 492                                 // don't access result when error occured
 493                                 var creturnblock = new CCodeBlock ();
 494                                 creturnblock.add_statement (new CCodeReturnStatement ());
 495                                 var cerrorif = new CCodeIfStatement (new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("error")), creturnblock);
 496                                 block.add_statement (cerrorif);
 497
 498                                 block.add_statement (out_marshalling_fragment);
 499                         } else {
 500                                 // string arrays or other datatypes
 501                                 var cdecl = new CCodeDeclaration (method.return_type.get_cname ());
 502                                 cdecl.add_declarator (new CCodeVariableDeclarator ("result"));
 503                                 block.add_statement (cdecl);
 504
 505                                 ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("result")));
 506                                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 507
 508                                 block.add_statement (new CCodeExpressionStatement (ccall));
 509
 510                                 // don't access result when error occured
 511                                 var creturnblock = new CCodeBlock ();
 512                                 creturnblock.add_statement (new CCodeReturnStatement (default_value_for_type (method.return_type, false)));
 513                                 var cerrorif = new CCodeIfStatement (new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("error")), creturnblock);
 514                                 block.add_statement (cerrorif);
 515
 516                                 block.add_statement (out_marshalling_fragment);
 517
 518                                 if (array_type != null) {
 519                                         // special case string array
 520
 521                                         // *result_length1 = g_strv_length (result);
 522                                         var cstrvlen = new CCodeFunctionCall (new CCodeIdentifier ("g_strv_length"));
 523                                         cstrvlen.add_argument (new CCodeIdentifier ("result"));
 524                                         var result_length = new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("result_length1"));
 525                                         var assign = new CCodeAssignment (result_length, cstrvlen);
 526                                         block.add_statement (new CCodeExpressionStatement (assign));
 527                                 }
 528
 529                                 block.add_statement (new CCodeReturnStatement (new CCodeIdentifier ("result")));
 530                         }
 531                 } else {
 532                         ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 533
 534                         block.add_statement (new CCodeExpressionStatement (ccall));
 535
 536                         // don't access result when error occured
 537                         var creturnblock = new CCodeBlock ();
 538                         creturnblock.add_statement (new CCodeReturnStatement ());
 539                         var cerrorif = new CCodeIfStatement (new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("error")), creturnblock);
 540                         block.add_statement (cerrorif);
 541
 542                         block.add_statement (out_marshalling_fragment);
 543                 }
 544         }
 545
 546         public override CCodeExpression get_dbus_g_type (DataType data_type) {
 547                 if (data_type is ArrayType) {
 548                         var array_type = data_type as ArrayType;
 549                         if (array_type.element_type.data_type == string_type.data_type) {
 550                                 return new CCodeIdentifier ("G_TYPE_STRV");
 551                         }
 552
 553                         var carray_type = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_type_get_collection"));
 554                         if (dbus_use_ptr_array (array_type)) {
 555                                 carray_type.add_argument (new CCodeConstant ("\"GPtrArray\""));
 556                         } else {
 557                                 carray_type.add_argument (new CCodeConstant ("\"GArray\""));
 558                         }
 559                         carray_type.add_argument (get_dbus_g_type (array_type.element_type));
 560                         return carray_type;
 561                 } else if (data_type.data_type is Enum) {
 562                         var en = (Enum) data_type.data_type;
 563                         if (en.is_flags) {
 564                                 return new CCodeIdentifier ("G_TYPE_UINT");
 565                         } else {
 566                                 return new CCodeIdentifier ("G_TYPE_INT");
 567                         }
 568                 } else if (data_type.data_type == null) {
 569                         critical ("Internal error during DBus type generation with: %s", data_type.to_string ());
 570                         return new CCodeIdentifier ("G_TYPE_NONE");
 571                 } else if (data_type.data_type.get_full_name () == "GLib.HashTable") {
 572                         var cmap_type = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_type_get_map"));
 573                         var type_args = data_type.get_type_arguments ();
 574
 575                         cmap_type.add_argument (new CCodeConstant ("\"GHashTable\""));
 576                         foreach (DataType type_arg in type_args) {
 577                                 cmap_type.add_argument (get_dbus_g_type (type_arg));
 578                         }
 579
 580                         return cmap_type;
 581                 } else if (get_type_signature (data_type).has_prefix ("(")) {
 582                         // struct parameter
 583                         var st = (Struct) data_type.data_type;
 584
 585                         var type_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_type_get_struct"));
 586                         type_call.add_argument (new CCodeConstant ("\"GValueArray\""));
 587
 588                         foreach (Field f in st.get_fields ()) {
 589                                 if (f.binding != MemberBinding.INSTANCE) {
 590                                         continue;
 591                                 }
 592
 593                                 type_call.add_argument (get_dbus_g_type (f.variable_type));
 594                         }
 595
 596                         type_call.add_argument (new CCodeConstant ("G_TYPE_INVALID"));
 597
 598                         return type_call;
 599                 } else {
 600                         return new CCodeIdentifier (data_type.data_type.get_type_id ());
 601                 }
 602         }
 603
 604         public bool dbus_use_ptr_array (ArrayType array_type) {
 605                 if (array_type.element_type.data_type == string_type.data_type) {
 606                         // use char**
 607                         return false;
 608                 } else if (array_type.element_type.data_type == bool_type.data_type
 609                            || array_type.element_type.data_type == char_type.data_type
 610                            || array_type.element_type.data_type == uchar_type.data_type
 611                            || array_type.element_type.data_type == int_type.data_type
 612                            || array_type.element_type.data_type == uint_type.data_type
 613                            || array_type.element_type.data_type == long_type.data_type
 614                            || array_type.element_type.data_type == ulong_type.data_type
 615                            || array_type.element_type.data_type == int8_type.data_type
 616                            || array_type.element_type.data_type == uint8_type.data_type
 617                            || array_type.element_type.data_type == int32_type.data_type
 618                            || array_type.element_type.data_type == uint32_type.data_type
 619                            || array_type.element_type.data_type == int64_type.data_type
 620                            || array_type.element_type.data_type == uint64_type.data_type
 621                            || array_type.element_type.data_type == double_type.data_type) {
 622                         // use GArray
 623                         return false;
 624                 } else {
 625                         // use GPtrArray
 626                         return true;
 627                 }
 628         }
 629
 630         public override string get_dynamic_property_getter_cname (DynamicProperty prop) {
 631                 if (prop.dynamic_type.data_type != dbus_object_type) {
 632                         return base.get_dynamic_property_getter_cname (prop);
 633                 }
 634
 635                 string getter_cname = "_dynamic_get_%s%d".printf (prop.name, dynamic_property_id++);
 636
 637                 if (get_type_signature (prop.property_type) == null) {
 638                         Report.error (prop.property_type.source_reference, "D-Bus serialization of type `%s' is not supported".printf (prop.property_type.to_string ()));
 639                         return getter_cname;
 640                 }
 641
 642                 var func = new CCodeFunction (getter_cname, prop.property_type.get_cname ());
 643                 func.modifiers |= CCodeModifiers.STATIC | CCodeModifiers.INLINE;
 644
 645                 func.add_parameter (new CCodeFormalParameter ("obj", prop.dynamic_type.get_cname ()));
 646
 647                 var block = new CCodeBlock ();
 648                 generate_dbus_property_getter_wrapper (prop, block);
 649
 650                 // append to C source file
 651                 cfile.add_type_member_declaration (func.copy ());
 652
 653                 func.block = block;
 654                 cfile.add_function (func);
 655
 656                 return getter_cname;
 657         }
 658
 659         public override string get_dynamic_property_setter_cname (DynamicProperty prop) {
 660                 if (prop.dynamic_type.data_type != dbus_object_type) {
 661                         return base.get_dynamic_property_setter_cname (prop);
 662                 }
 663
 664                 string setter_cname = "_dynamic_set_%s%d".printf (prop.name, dynamic_property_id++);
 665
 666                 if (get_type_signature (prop.property_type) == null) {
 667                         Report.error (prop.property_type.source_reference, "D-Bus serialization of type `%s' is not supported".printf (prop.property_type.to_string ()));
 668                         return setter_cname;
 669                 }
 670
 671                 var func = new CCodeFunction (setter_cname, "void");
 672                 func.modifiers |= CCodeModifiers.STATIC | CCodeModifiers.INLINE;
 673
 674                 func.add_parameter (new CCodeFormalParameter ("obj", prop.dynamic_type.get_cname ()));
 675                 func.add_parameter (new CCodeFormalParameter ("value", prop.property_type.get_cname ()));
 676
 677                 var block = new CCodeBlock ();
 678                 generate_dbus_property_setter_wrapper (prop, block);
 679
 680                 // append to C source file
 681                 cfile.add_type_member_declaration (func.copy ());
 682
 683                 func.block = block;
 684                 cfile.add_function (func);
 685
 686                 return setter_cname;
 687         }
 688
 689         void create_dbus_property_proxy (DynamicProperty node, CCodeBlock block) {
 690                 var prop_proxy_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_new_from_proxy"));
 691                 prop_proxy_call.add_argument (new CCodeIdentifier ("obj"));
 692                 prop_proxy_call.add_argument (new CCodeConstant ("DBUS_INTERFACE_PROPERTIES"));
 693                 prop_proxy_call.add_argument (new CCodeConstant ("NULL"));
 694
 695                 var prop_proxy_decl = new CCodeDeclaration ("DBusGProxy*");
 696                 prop_proxy_decl.add_declarator (new CCodeVariableDeclarator ("property_proxy", prop_proxy_call));
 697                 block.add_statement (prop_proxy_decl);
 698         }
 699
 700         void generate_dbus_property_getter_wrapper (DynamicProperty node, CCodeBlock block) {
 701                 create_dbus_property_proxy (node, block);
 702
 703                 // initialize GValue
 704                 var cvalinit = new CCodeInitializerList ();
 705                 cvalinit.append (new CCodeConstant ("0"));
 706
 707                 var cval_decl = new CCodeDeclaration ("GValue");
 708                 cval_decl.add_declarator (new CCodeVariableDeclarator.zero ("gvalue", cvalinit));
 709                 block.add_statement (cval_decl);
 710
 711                 var val_ptr = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("gvalue"));
 712
 713                 // call Get method on property proxy
 714                 var cdecl = new CCodeDeclaration (node.property_type.get_cname ());
 715                 cdecl.add_declarator (new CCodeVariableDeclarator ("result"));
 716                 block.add_statement (cdecl);
 717
 718                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_call"));
 719                 ccall.add_argument (new CCodeIdentifier ("property_proxy"));
 720                 ccall.add_argument (new CCodeConstant ("\"Get\""));
 721                 ccall.add_argument (new CCodeConstant ("NULL"));
 722
 723                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_STRING"));
 724                 var get_iface = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_get_interface"));
 725                 get_iface.add_argument (new CCodeIdentifier ("obj"));
 726                 ccall.add_argument (get_iface);
 727
 728                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_STRING"));
 729                 ccall.add_argument (new CCodeConstant ("\"%s\"".printf (get_dynamic_dbus_name (node.name))));
 730
 731                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 732
 733                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_VALUE"));
 734                 ccall.add_argument (val_ptr);
 735
 736                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 737
 738                 block.add_statement (new CCodeExpressionStatement (ccall));
 739
 740                 // unref property proxy
 741                 var prop_proxy_unref = new CCodeFunctionCall (new CCodeIdentifier ("g_object_unref"));
 742                 prop_proxy_unref.add_argument (new CCodeIdentifier ("property_proxy"));
 743                 block.add_statement (new CCodeExpressionStatement (prop_proxy_unref));
 744
 745                 // assign value to result variable
 746                 var cget_call = new CCodeFunctionCall (new CCodeIdentifier (node.property_type.data_type.get_get_value_function ()));
 747                 cget_call.add_argument (val_ptr);
 748                 var assign = new CCodeAssignment (new CCodeIdentifier ("result"), cget_call);
 749                 block.add_statement (new CCodeExpressionStatement (assign));
 750
 751                 // return result
 752                 block.add_statement (new CCodeReturnStatement (new CCodeIdentifier ("result")));
 753         }
 754
 755         void generate_dbus_property_setter_wrapper (DynamicProperty node, CCodeBlock block) {
 756                 create_dbus_property_proxy (node, block);
 757
 758                 // initialize GValue
 759                 var cvalinit = new CCodeInitializerList ();
 760                 cvalinit.append (new CCodeConstant ("0"));
 761
 762                 var cval_decl = new CCodeDeclaration ("GValue");
 763                 cval_decl.add_declarator (new CCodeVariableDeclarator.zero ("gvalue", cvalinit));
 764                 block.add_statement (cval_decl);
 765
 766                 var val_ptr = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("gvalue"));
 767
 768                 var cinit_call = new CCodeFunctionCall (new CCodeIdentifier ("g_value_init"));
 769                 cinit_call.add_argument (val_ptr);
 770                 cinit_call.add_argument (new CCodeIdentifier (node.property_type.data_type.get_type_id ()));
 771                 block.add_statement (new CCodeExpressionStatement (cinit_call));
 772
 773                 var cset_call = new CCodeFunctionCall (new CCodeIdentifier (node.property_type.data_type.get_set_value_function ()));
 774                 cset_call.add_argument (val_ptr);
 775                 cset_call.add_argument (new CCodeIdentifier ("value"));
 776                 block.add_statement (new CCodeExpressionStatement (cset_call));
 777
 778                 // call Set method on property proxy
 779                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_call"));
 780                 ccall.add_argument (new CCodeIdentifier ("property_proxy"));
 781                 ccall.add_argument (new CCodeConstant ("\"Set\""));
 782                 ccall.add_argument (new CCodeConstant ("NULL"));
 783
 784                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_STRING"));
 785                 var get_iface = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_get_interface"));
 786                 get_iface.add_argument (new CCodeIdentifier ("obj"));
 787                 ccall.add_argument (get_iface);
 788
 789                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_STRING"));
 790                 ccall.add_argument (new CCodeConstant ("\"%s\"".printf (get_dynamic_dbus_name (node.name))));
 791
 792                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_VALUE"));
 793                 ccall.add_argument (val_ptr);
 794
 795                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 796
 797                 ccall.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 798
 799                 block.add_statement (new CCodeExpressionStatement (ccall));
 800
 801                 // unref property proxy
 802                 var prop_proxy_unref = new CCodeFunctionCall (new CCodeIdentifier ("g_object_unref"));
 803                 prop_proxy_unref.add_argument (new CCodeIdentifier ("property_proxy"));
 804                 block.add_statement (new CCodeExpressionStatement (prop_proxy_unref));
 805         }
 806
 807         public override string get_dynamic_signal_connect_wrapper_name (DynamicSignal sig) {
 808                 if (sig.dynamic_type.data_type != dbus_object_type) {
 809                         return base.get_dynamic_signal_connect_wrapper_name (sig);
 810                 }
 811
 812                 string connect_wrapper_name = "_%sconnect".printf (get_dynamic_signal_cname (sig));
 813                 var func = new CCodeFunction (connect_wrapper_name, "void");
 814                 func.add_parameter (new CCodeFormalParameter ("obj", "gpointer"));
 815                 func.add_parameter (new CCodeFormalParameter ("signal_name", "const char *"));
 816                 func.add_parameter (new CCodeFormalParameter ("handler", "GCallback"));
 817                 func.add_parameter (new CCodeFormalParameter ("data", "gpointer"));
 818                 var block = new CCodeBlock ();
 819                 generate_dbus_connect_wrapper (sig, block);
 820
 821                 // append to C source file
 822                 cfile.add_type_member_declaration (func.copy ());
 823
 824                 func.block = block;
 825                 cfile.add_function (func);
 826
 827                 return connect_wrapper_name;
 828         }
 829
 830         public override string get_dynamic_signal_disconnect_wrapper_name (DynamicSignal sig) {
 831                 if (sig.dynamic_type.data_type != dbus_object_type) {
 832                         return base.get_dynamic_signal_disconnect_wrapper_name (sig);
 833                 }
 834
 835                 string disconnect_wrapper_name = "_%sdisconnect".printf (get_dynamic_signal_cname (sig));
 836                 var func = new CCodeFunction (disconnect_wrapper_name, "void");
 837                 func.add_parameter (new CCodeFormalParameter ("obj", "gpointer"));
 838                 func.add_parameter (new CCodeFormalParameter ("signal_name", "const char *"));
 839                 func.add_parameter (new CCodeFormalParameter ("handler", "GCallback"));
 840                 func.add_parameter (new CCodeFormalParameter ("data", "gpointer"));
 841                 var block = new CCodeBlock ();
 842                 generate_dbus_disconnect_wrapper (sig, block);
 843
 844                 // append to C source file
 845                 cfile.add_type_member_declaration (func.copy ());
 846
 847                 func.block = block;
 848                 cfile.add_function (func);
 849
 850                 return disconnect_wrapper_name;
 851         }
 852
 853         void generate_dbus_connect_wrapper (DynamicSignal sig, CCodeBlock block) {
 854                 var m = (Method) sig.handler.symbol_reference;
 855
 856                 sig.accept (this);
 857
 858                 // FIXME should only be done once per marshaller
 859                 var register_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_object_register_marshaller"));
 860                 generate_marshaller (sig.get_parameters (), sig.return_type, true);
 861                 register_call.add_argument (new CCodeIdentifier (get_marshaller_function (sig.get_parameters (), sig.return_type, null, true)));
 862                 register_call.add_argument (new CCodeIdentifier ("G_TYPE_NONE"));
 863
 864                 var add_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_add_signal"));
 865                 add_call.add_argument (new CCodeIdentifier ("obj"));
 866                 add_call.add_argument (new CCodeConstant ("\"%s\"".printf (get_dynamic_dbus_name (sig.name))));
 867
 868                 bool first = true;
 869                 foreach (FormalParameter param in m.get_parameters ()) {
 870                         if (first) {
 871                                 // skip sender parameter
 872                                 first = false;
 873                                 continue;
 874                         }
 875
 876                         register_call.add_argument (get_dbus_g_type (param.variable_type));
 877                         add_call.add_argument (get_dbus_g_type (param.variable_type));
 878                 }
 879                 register_call.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 880                 add_call.add_argument (new CCodeIdentifier ("G_TYPE_INVALID"));
 881
 882                 block.add_statement (new CCodeExpressionStatement (register_call));
 883                 block.add_statement (new CCodeExpressionStatement (add_call));
 884
 885                 var call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_connect_signal"));
 886                 call.add_argument (new CCodeIdentifier ("obj"));
 887                 call.add_argument (new CCodeConstant ("\"%s\"".printf (get_dynamic_dbus_name (sig.name))));
 888                 call.add_argument (new CCodeIdentifier ("handler"));
 889                 call.add_argument (new CCodeIdentifier ("data"));
 890                 call.add_argument (new CCodeConstant ("NULL"));
 891                 block.add_statement (new CCodeExpressionStatement (call));
 892         }
 893
 894         void generate_dbus_disconnect_wrapper (DynamicSignal sig, CCodeBlock block) {
 895                 var call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_disconnect_signal"));
 896                 call.add_argument (new CCodeIdentifier ("obj"));
 897                 call.add_argument (new CCodeConstant ("\"%s\"".printf (get_dynamic_dbus_name (sig.name))));
 898                 call.add_argument (new CCodeIdentifier ("handler"));
 899                 call.add_argument (new CCodeIdentifier ("data"));
 900                 block.add_statement (new CCodeExpressionStatement (call));
 901         }
 902
 903         public override void visit_cast_expression (CastExpression expr) {
 904                 // handles casting DBus.Object instances to DBus interfaces
 905
 906                 var type = expr.type_reference as ObjectType;
 907                 var call = expr.inner as MethodCall;
 908                 if (type == null || !(type.type_symbol is Interface)
 909                     || type.type_symbol.get_attribute ("DBus") == null || call == null) {
 910                         base.visit_cast_expression (expr);
 911                         return;
 912                 }
 913
 914                 var mtype = call.call.value_type as MethodType;
 915                 if (mtype == null || mtype.method_symbol.get_cname () != "dbus_g_proxy_new_for_name") {
 916                         base.visit_cast_expression (expr);
 917                         return;
 918                 }
 919
 920                 var args = call.get_argument_list ();
 921                 Expression connection = ((MemberAccess) call.call).inner;
 922                 Expression bus_name = args.get (0);
 923                 Expression object_path = args.get (1);
 924
 925                 var ccall = new CCodeFunctionCall (new CCodeIdentifier (type.type_symbol.get_lower_case_cprefix () + "dbus_proxy_new"));
 926                 connection.emit (this);
 927                 ccall.add_argument ((CCodeExpression) connection.ccodenode);
 928                 bus_name.emit (this);
 929                 ccall.add_argument ((CCodeExpression) bus_name.ccodenode);
 930                 object_path.emit (this);
 931                 ccall.add_argument ((CCodeExpression) object_path.ccodenode);
 932                 expr.ccodenode = ccall;
 933         }
 934
 935         void generate_proxy_interface_init (Interface main_iface, Interface iface) {
 936                 // also generate proxy for prerequisites
 937                 foreach (var prereq in iface.get_prerequisites ()) {
 938                         if (prereq.data_type is Interface) {
 939                                 generate_proxy_interface_init (main_iface, (Interface) prereq.data_type);
 940                         }
 941                 }
 942
 943                 string lower_cname = main_iface.get_lower_case_cprefix () + "dbus_proxy";
 944
 945                 var proxy_iface_init = new CCodeFunction (lower_cname + "_" + iface.get_lower_case_cprefix () + "_interface_init", "void");
 946                 proxy_iface_init.add_parameter (new CCodeFormalParameter ("iface", iface.get_cname () + "Iface*"));
 947
 948                 var iface_block = new CCodeBlock ();
 949
 950                 foreach (Method m in iface.get_methods ()) {
 951                         var vfunc_entry = new CCodeMemberAccess.pointer (new CCodeIdentifier ("iface"), m.vfunc_name);
 952                         if (is_dbus_no_reply (m)) {
 953                                 if (m.coroutine) {
 954                                         Report.error (m.source_reference, "No-reply DBus methods must not be async");
 955                                 }
 956                                 iface_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (vfunc_entry, new CCodeIdentifier (generate_noreply_dbus_proxy_method (main_iface, iface, m)))));
 957                         } else if (!m.coroutine) {
 958                                 iface_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (vfunc_entry, new CCodeIdentifier (generate_dbus_proxy_method (main_iface, iface, m)))));
 959                         } else {
 960                                 iface_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (vfunc_entry, new CCodeIdentifier (generate_async_dbus_proxy_method (main_iface, iface, m)))));
 961                                 vfunc_entry = new CCodeMemberAccess.pointer (new CCodeIdentifier ("iface"), m.get_finish_vfunc_name ());
 962                                 iface_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (vfunc_entry, new CCodeIdentifier (generate_finish_dbus_proxy_method (main_iface, iface, m)))));
 963                         }
 964                 }
 965
 966                 foreach (Property prop in iface.get_properties ()) {
 967                         if (prop.get_accessor != null) {
 968                                 var vfunc_entry = new CCodeMemberAccess.pointer (new CCodeIdentifier ("iface"), "get_" + prop.name);
 969                                 iface_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (vfunc_entry, new CCodeIdentifier (generate_dbus_proxy_property_get (main_iface, iface, prop)))));
 970                         }
 971                         if (prop.set_accessor != null) {
 972                                 var vfunc_entry = new CCodeMemberAccess.pointer (new CCodeIdentifier ("iface"), "set_" + prop.name);
 973                                 iface_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (vfunc_entry, new CCodeIdentifier (generate_dbus_proxy_property_set (main_iface, iface, prop)))));
 974                         }
 975                 }
 976
 977                 proxy_iface_init.modifiers = CCodeModifiers.STATIC;
 978                 cfile.add_type_member_declaration (proxy_iface_init.copy ());
 979                 proxy_iface_init.block = iface_block;
 980                 cfile.add_function (proxy_iface_init);
 981         }
 982
 983         string implement_interface (CCodeFunctionCall define_type, Interface main_iface, Interface iface) {
 984                 string result = "";
 985
 986                 // also implement prerequisites
 987                 foreach (var prereq in iface.get_prerequisites ()) {
 988                         if (prereq.data_type is Interface) {
 989                                 result += implement_interface (define_type, main_iface, (Interface) prereq.data_type);
 990                         }
 991                 }
 992
 993                 result += "G_IMPLEMENT_INTERFACE (%s, %sdbus_proxy_%s_interface_init) ".printf (
 994                         iface.get_upper_case_cname ("TYPE_"),
 995                         main_iface.get_lower_case_cprefix (),
 996                         iface.get_lower_case_cprefix ());
 997                 return result;
 998         }
 999
1000         void implement_property (CCodeBlock block, Interface main_iface, Interface iface) {
1001                 // also implement prerequisites
1002                 foreach (var prereq in iface.get_prerequisites ()) {
1003                         if (prereq.data_type is Interface) {
1004                                 implement_property (block, main_iface, (Interface) prereq.data_type);
1005                         }
1006                 }
1007
1008                 var gobject_class = new CCodeFunctionCall (new CCodeIdentifier ("G_OBJECT_CLASS"));
1009                 gobject_class.add_argument (new CCodeIdentifier ("klass"));
1010
1011                 foreach (Property prop in iface.get_properties ()) {
1012                         if (!prop.is_abstract) {
1013                                 continue;
1014                         }
1015
1016                         if (!is_gobject_property (prop)) {
1017                                 continue;
1018                         }
1019
1020                         string prop_ev = "%s_dbus_proxy_%s".printf (main_iface.get_lower_case_cname (null), Symbol.camel_case_to_lower_case (prop.name)).up ();
1021
1022                         var cinst = new CCodeFunctionCall (new CCodeIdentifier ("g_object_class_override_property"));
1023                         cinst.add_argument (gobject_class);
1024                         cinst.add_argument (new CCodeConstant (prop_ev));
1025                         cinst.add_argument (prop.get_canonical_cconstant ());
1026                         block.add_statement (new CCodeExpressionStatement (cinst));
1027
1028                         prop_enum.add_value (new CCodeEnumValue (prop_ev));
1029                 }
1030         }
1031
1032         public override void generate_interface_declaration (Interface iface, CCodeFile decl_space) {
1033                 base.generate_interface_declaration (iface, decl_space);
1034
1035                 string dbus_iface_name = get_dbus_name (iface);
1036                 if (dbus_iface_name == null) {
1037                         return;
1038                 }
1039
1040                 string lower_cname = iface.get_lower_case_cprefix () + "dbus_proxy";
1041
1042                 if (add_symbol_declaration (decl_space, iface, lower_cname + "_new")) {
1043                         return;
1044                 }
1045
1046                 // declare proxy_new function
1047                 var proxy_new = new CCodeFunction (lower_cname + "_new", iface.get_cname () + "*");
1048                 proxy_new.add_parameter (new CCodeFormalParameter ("connection", "DBusGConnection*"));
1049                 proxy_new.add_parameter (new CCodeFormalParameter ("name", "const char*"));
1050                 proxy_new.add_parameter (new CCodeFormalParameter ("path", "const char*"));
1051
1052                 decl_space.add_type_member_declaration (proxy_new);
1053         }
1054
1055         public override void visit_interface (Interface iface) {
1056                 base.visit_interface (iface);
1057
1058                 string dbus_iface_name = get_dbus_name (iface);
1059                 if (dbus_iface_name == null) {
1060                         return;
1061                 }
1062
1063                 // strcmp
1064                 cfile.add_include ("string.h");
1065
1066                 // create proxy class
1067                 string cname = iface.get_cname () + "DBusProxy";
1068                 string lower_cname = iface.get_lower_case_cprefix () + "dbus_proxy";
1069
1070                 add_dbus_helpers ();
1071
1072                 cfile.add_type_declaration (new CCodeTypeDefinition ("struct _%s".printf (cname), new CCodeVariableDeclarator (cname)));
1073                 cfile.add_type_declaration (new CCodeTypeDefinition ("DBusGProxyClass", new CCodeVariableDeclarator (cname + "Class")));
1074
1075                 var instance_struct = new CCodeStruct ("_%s".printf (cname));
1076                 instance_struct.add_field ("DBusGProxy", "parent_instance");
1077                 instance_struct.add_field ("gboolean", "disposed");
1078
1079                 cfile.add_type_definition (instance_struct);
1080
1081                 var type_fun = new CCodeFunction(lower_cname + "_get_type", "GType");
1082                 type_fun.attributes = "G_GNUC_CONST";
1083                 cfile.add_type_member_declaration (type_fun);
1084
1085                 var define_type = new CCodeFunctionCall (new CCodeIdentifier ("G_DEFINE_TYPE_EXTENDED"));
1086                 define_type.add_argument (new CCodeIdentifier (cname));
1087                 define_type.add_argument (new CCodeIdentifier (lower_cname));
1088                 define_type.add_argument (new CCodeIdentifier ("DBUS_TYPE_G_PROXY"));
1089                 define_type.add_argument (new CCodeConstant ("0"));
1090                 define_type.add_argument (new CCodeIdentifier (implement_interface (define_type, iface, iface)));
1091
1092                 cfile.add_type_member_definition (new CCodeExpressionStatement (define_type));
1093
1094                 // generate proxy_new function
1095                 var proxy_new = new CCodeFunction (lower_cname + "_new", iface.get_cname () + "*");
1096                 proxy_new.add_parameter (new CCodeFormalParameter ("connection", "DBusGConnection*"));
1097                 proxy_new.add_parameter (new CCodeFormalParameter ("name", "const char*"));
1098                 proxy_new.add_parameter (new CCodeFormalParameter ("path", "const char*"));
1099
1100                 var new_block = new CCodeBlock ();
1101
1102                 // create proxy object
1103                 var new_call = new CCodeFunctionCall (new CCodeIdentifier ("g_object_new"));
1104                 new_call.add_argument (new CCodeFunctionCall (new CCodeIdentifier (lower_cname + "_get_type")));
1105                 new_call.add_argument (new CCodeConstant ("\"connection\""));
1106                 new_call.add_argument (new CCodeIdentifier ("connection"));
1107                 new_call.add_argument (new CCodeConstant ("\"name\""));
1108                 new_call.add_argument (new CCodeIdentifier ("name"));
1109                 new_call.add_argument (new CCodeConstant ("\"path\""));
1110                 new_call.add_argument (new CCodeIdentifier ("path"));
1111                 new_call.add_argument (new CCodeConstant ("\"interface\""));
1112                 new_call.add_argument (new CCodeConstant ("\"%s\"".printf (dbus_iface_name)));
1113                 new_call.add_argument (new CCodeConstant ("NULL"));
1114
1115                 var cdecl = new CCodeDeclaration (iface.get_cname () + "*");
1116                 cdecl.add_declarator (new CCodeVariableDeclarator ("self", new_call));
1117                 new_block.add_statement (cdecl);
1118                 new_block.add_statement (new CCodeReturnStatement (new CCodeIdentifier ("self")));
1119
1120                 proxy_new.block = new_block;
1121                 cfile.add_function (proxy_new);
1122
1123                 // dbus proxy construct
1124                 var proxy_construct = new CCodeFunction (lower_cname + "_construct", "GObject*");
1125                 proxy_construct.add_parameter (new CCodeFormalParameter ("gtype", "GType"));
1126                 proxy_construct.add_parameter (new CCodeFormalParameter ("n_properties", "guint"));
1127                 proxy_construct.add_parameter (new CCodeFormalParameter ("properties", "GObjectConstructParam*"));
1128                 proxy_construct.modifiers = CCodeModifiers.STATIC;
1129                 proxy_construct.block = new CCodeBlock ();
1130
1131                 // chain up
1132                 var parent_class = new CCodeFunctionCall (new CCodeIdentifier ("G_OBJECT_CLASS"));
1133                 parent_class.add_argument (new CCodeIdentifier (lower_cname + "_parent_class"));
1134                 var chainup = new CCodeFunctionCall (new CCodeMemberAccess.pointer (parent_class, "constructor"));
1135                 chainup.add_argument (new CCodeIdentifier ("gtype"));
1136                 chainup.add_argument (new CCodeIdentifier ("n_properties"));
1137                 chainup.add_argument (new CCodeIdentifier ("properties"));
1138
1139                 cdecl = new CCodeDeclaration ("GObject*");
1140                 cdecl.add_declarator (new CCodeVariableDeclarator ("self", chainup));
1141                 proxy_construct.block.add_statement (cdecl);
1142
1143                 cdecl = new CCodeDeclaration ("DBusGConnection");
1144                 cdecl.add_declarator (new CCodeVariableDeclarator ("*connection"));
1145                 proxy_construct.block.add_statement (cdecl);
1146
1147                 var gconnection = new CCodeFunctionCall (new CCodeIdentifier ("g_object_get"));
1148                 gconnection.add_argument (new CCodeIdentifier ("self"));
1149                 gconnection.add_argument (new CCodeConstant ("\"connection\""));
1150                 gconnection.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("connection")));
1151                 gconnection.add_argument (new CCodeConstant ("NULL"));
1152                 proxy_construct.block.add_statement (new CCodeExpressionStatement (gconnection));
1153
1154                 cdecl = new CCodeDeclaration ("char*");
1155                 cdecl.add_declarator (new CCodeVariableDeclarator ("path"));
1156                 proxy_construct.block.add_statement (cdecl);
1157
1158                 var path = new CCodeFunctionCall (new CCodeIdentifier ("g_object_get"));
1159                 path.add_argument (new CCodeIdentifier ("self"));
1160                 path.add_argument (new CCodeConstant ("\"path\""));
1161                 path.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("path")));
1162                 path.add_argument (new CCodeConstant ("NULL"));
1163                 proxy_construct.block.add_statement (new CCodeExpressionStatement (path));
1164
1165                 var raw_connection = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_get_connection"));
1166                 raw_connection.add_argument (new CCodeIdentifier ("connection"));
1167
1168                 // add filter to handle signals from the remote object
1169                 var filter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_connection_add_filter"));
1170                 filter_call.add_argument (raw_connection);
1171                 filter_call.add_argument (new CCodeIdentifier (lower_cname + "_filter"));
1172                 filter_call.add_argument (new CCodeIdentifier ("self"));
1173                 filter_call.add_argument (new CCodeConstant ("NULL"));
1174                 proxy_construct.block.add_statement (new CCodeExpressionStatement (filter_call));
1175
1176                 var filter_printf = new CCodeFunctionCall (new CCodeIdentifier ("g_strdup_printf"));
1177                 filter_printf.add_argument (new CCodeConstant ("\"type='signal',path='%s'\""));
1178                 filter_printf.add_argument (new CCodeIdentifier ("path"));
1179
1180                 cdecl = new CCodeDeclaration ("char*");
1181                 cdecl.add_declarator (new CCodeVariableDeclarator ("filter", filter_printf));
1182                 proxy_construct.block.add_statement (cdecl);
1183
1184                 // ensure we receive signals from the remote object
1185                 var match_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_bus_add_match"));
1186                 match_call.add_argument (raw_connection);
1187                 match_call.add_argument (new CCodeIdentifier ("filter"));
1188                 match_call.add_argument (new CCodeConstant ("NULL"));
1189                 proxy_construct.block.add_statement (new CCodeExpressionStatement (match_call));
1190
1191                 var connection_free = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_unref"));
1192                 connection_free.add_argument (new CCodeIdentifier ("connection"));
1193                 proxy_construct.block.add_statement (new CCodeExpressionStatement (connection_free));
1194
1195                 var path_free = new CCodeFunctionCall (new CCodeIdentifier ("g_free"));
1196                 path_free.add_argument (new CCodeIdentifier ("path"));
1197                 proxy_construct.block.add_statement (new CCodeExpressionStatement (path_free));
1198
1199                 var filter_free = new CCodeFunctionCall (new CCodeIdentifier ("g_free"));
1200                 filter_free.add_argument (new CCodeIdentifier ("filter"));
1201                 proxy_construct.block.add_statement (new CCodeExpressionStatement (filter_free));
1202
1203                 proxy_construct.block.add_statement (new CCodeReturnStatement (new CCodeIdentifier ("self")));
1204
1205                 cfile.add_function (proxy_construct);
1206
1207                 // dbus proxy filter function
1208                 generate_proxy_filter_function (iface);
1209
1210                 // dbus proxy dispose
1211                 var proxy_dispose = new CCodeFunction (lower_cname + "_dispose", "void");
1212                 proxy_dispose.add_parameter (new CCodeFormalParameter ("self", "GObject*"));
1213                 proxy_dispose.modifiers = CCodeModifiers.STATIC;
1214                 proxy_dispose.block = new CCodeBlock ();
1215
1216                 cdecl = new CCodeDeclaration ("DBusGConnection");
1217                 cdecl.add_declarator (new CCodeVariableDeclarator ("*connection"));
1218                 proxy_dispose.block.add_statement (cdecl);
1219
1220                 // return if proxy is already disposed
1221                 var dispose_return_block = new CCodeBlock ();
1222                 dispose_return_block.add_statement (new CCodeReturnStatement ());
1223                 proxy_dispose.block.add_statement (new CCodeIfStatement (new CCodeMemberAccess.pointer (new CCodeCastExpression (new CCodeIdentifier ("self"), cname + "*"), "disposed"), dispose_return_block));
1224
1225                 // mark proxy as disposed
1226                 proxy_dispose.block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeMemberAccess.pointer (new CCodeCastExpression (new CCodeIdentifier ("self"), cname + "*"), "disposed"), new CCodeConstant ("TRUE"))));
1227
1228                 gconnection = new CCodeFunctionCall (new CCodeIdentifier ("g_object_get"));
1229                 gconnection.add_argument (new CCodeIdentifier ("self"));
1230                 gconnection.add_argument (new CCodeConstant ("\"connection\""));
1231                 gconnection.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("connection")));
1232                 gconnection.add_argument (new CCodeConstant ("NULL"));
1233                 proxy_dispose.block.add_statement (new CCodeExpressionStatement (gconnection));
1234
1235                 // remove filter
1236                 filter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_connection_remove_filter"));
1237                 filter_call.add_argument (raw_connection);
1238                 filter_call.add_argument (new CCodeIdentifier (lower_cname + "_filter"));
1239                 filter_call.add_argument (new CCodeIdentifier ("self"));
1240                 proxy_dispose.block.add_statement (new CCodeExpressionStatement (filter_call));
1241
1242                 // chain up
1243                 parent_class = new CCodeFunctionCall (new CCodeIdentifier ("G_OBJECT_CLASS"));
1244                 parent_class.add_argument (new CCodeIdentifier (lower_cname + "_parent_class"));
1245                 chainup = new CCodeFunctionCall (new CCodeMemberAccess.pointer (parent_class, "dispose"));
1246                 chainup.add_argument (new CCodeIdentifier ("self"));
1247                 proxy_dispose.block.add_statement (new CCodeExpressionStatement (chainup));
1248
1249                 cfile.add_function (proxy_dispose);
1250
1251                 var proxy_class_init = new CCodeFunction (lower_cname + "_class_init", "void");
1252                 proxy_class_init.add_parameter (new CCodeFormalParameter ("klass", cname + "Class*"));
1253                 proxy_class_init.modifiers = CCodeModifiers.STATIC;
1254                 proxy_class_init.block = new CCodeBlock ();
1255                 var gobject_class = new CCodeFunctionCall (new CCodeIdentifier ("G_OBJECT_CLASS"));
1256                 gobject_class.add_argument (new CCodeIdentifier ("klass"));
1257                 proxy_class_init.block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeMemberAccess.pointer (gobject_class, "constructor"), new CCodeIdentifier (lower_cname + "_construct"))));
1258                 proxy_class_init.block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeMemberAccess.pointer (gobject_class, "dispose"), new CCodeIdentifier (lower_cname + "_dispose"))));
1259                 proxy_class_init.block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeMemberAccess.pointer (gobject_class, "get_property"), new CCodeIdentifier (lower_cname + "_get_property"))));
1260                 proxy_class_init.block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeMemberAccess.pointer (gobject_class, "set_property"), new CCodeIdentifier (lower_cname + "_set_property"))));
1261                 cfile.add_function (proxy_class_init);
1262
1263                 prop_enum = new CCodeEnum ();
1264                 prop_enum.add_value (new CCodeEnumValue ("%s_DUMMY_PROPERTY".printf (lower_cname.up ())));
1265
1266                 implement_property (proxy_class_init.block, iface, iface);
1267
1268                 cfile.add_type_member_declaration (prop_enum);
1269
1270                 var proxy_instance_init = new CCodeFunction (lower_cname + "_init", "void");
1271                 proxy_instance_init.add_parameter (new CCodeFormalParameter ("self", cname + "*"));
1272                 proxy_instance_init.modifiers = CCodeModifiers.STATIC;
1273                 proxy_instance_init.block = new CCodeBlock ();
1274                 cfile.add_function (proxy_instance_init);
1275
1276                 generate_proxy_interface_init (iface, iface);
1277
1278                 // dbus proxy get/set_property stubs
1279                 // TODO add actual implementation
1280                 var get_prop = new CCodeFunction ("%s_get_property".printf (lower_cname), "void");
1281                 get_prop.modifiers = CCodeModifiers.STATIC;
1282                 get_prop.add_parameter (new CCodeFormalParameter ("object", "GObject *"));
1283                 get_prop.add_parameter (new CCodeFormalParameter ("property_id", "guint"));
1284                 get_prop.add_parameter (new CCodeFormalParameter ("value", "GValue *"));
1285                 get_prop.add_parameter (new CCodeFormalParameter ("pspec", "GParamSpec *"));
1286                 cfile.add_type_member_declaration (get_prop.copy ());
1287                 get_prop.block = new CCodeBlock ();
1288                 cfile.add_function (get_prop);
1289
1290                 var set_prop = new CCodeFunction ("%s_set_property".printf (lower_cname), "void");
1291                 set_prop.modifiers = CCodeModifiers.STATIC;
1292                 set_prop.add_parameter (new CCodeFormalParameter ("object", "GObject *"));
1293                 set_prop.add_parameter (new CCodeFormalParameter ("property_id", "guint"));
1294                 set_prop.add_parameter (new CCodeFormalParameter ("value", "const GValue *"));
1295                 set_prop.add_parameter (new CCodeFormalParameter ("pspec", "GParamSpec *"));
1296                 cfile.add_type_member_declaration (set_prop.copy ());
1297                 set_prop.block = new CCodeBlock ();
1298                 cfile.add_function (set_prop);
1299         }
1300
1301         public override TypeRegisterFunction create_interface_register_function (Interface iface) {
1302                 string dbus_iface_name = get_dbus_name (iface);
1303                 if (dbus_iface_name == null) {
1304                         return new InterfaceRegisterFunction (iface, context);
1305                 }
1306
1307                 return new DBusInterfaceRegisterFunction (iface, context);
1308         }
1309
1310         string generate_get_all_function (Method m) {
1311                 string get_all_func = "_dbus_g_proxy_get_all";
1312
1313                 if (!add_wrapper (get_all_func)) {
1314                         // wrapper already defined
1315                         return get_all_func;
1316                 }
1317
1318                 var function = new CCodeFunction (get_all_func, "GHashTable*");
1319                 function.modifiers = CCodeModifiers.STATIC;
1320
1321                 function.add_parameter (new CCodeFormalParameter ("self", "DBusGProxy*"));
1322                 function.add_parameter (new CCodeFormalParameter ("interface_name", "const gchar*"));
1323                 function.add_parameter (new CCodeFormalParameter ("error", "GError**"));
1324
1325                 var block = new CCodeBlock ();
1326                 var prefragment = new CCodeFragment ();
1327                 var postfragment = new CCodeFragment ();
1328
1329                 var cdecl = new CCodeDeclaration ("DBusError");
1330                 cdecl.add_declarator (new CCodeVariableDeclarator ("_dbus_error"));
1331                 block.add_statement (cdecl);
1332
1333                 var dbus_error = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_dbus_error"));
1334
1335                 cdecl = new CCodeDeclaration ("DBusGConnection");
1336                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_connection"));
1337                 block.add_statement (cdecl);
1338
1339                 cdecl = new CCodeDeclaration ("DBusMessage");
1340                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_message"));
1341                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_reply"));
1342                 block.add_statement (cdecl);
1343
1344                 cdecl = new CCodeDeclaration ("DBusMessageIter");
1345                 cdecl.add_declarator (new CCodeVariableDeclarator ("_iter"));
1346                 block.add_statement (cdecl);
1347
1348                 block.add_statement (prefragment);
1349
1350                 generate_marshalling (m, "org.freedesktop.DBus.Properties", prefragment, postfragment);
1351
1352                 var gconnection = new CCodeFunctionCall (new CCodeIdentifier ("g_object_get"));
1353                 gconnection.add_argument (new CCodeIdentifier ("self"));
1354                 gconnection.add_argument (new CCodeConstant ("\"connection\""));
1355                 gconnection.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_connection")));
1356                 gconnection.add_argument (new CCodeConstant ("NULL"));
1357                 block.add_statement (new CCodeExpressionStatement (gconnection));
1358
1359                 var dbus_error_init = new CCodeFunctionCall (new CCodeIdentifier ("dbus_error_init"));
1360                 dbus_error_init.add_argument (dbus_error);
1361                 block.add_statement (new CCodeExpressionStatement (dbus_error_init));
1362
1363                 var connection = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_get_connection"));
1364                 connection.add_argument (new CCodeIdentifier ("_connection"));
1365
1366                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_connection_send_with_reply_and_block"));
1367                 ccall.add_argument (connection);
1368                 ccall.add_argument (new CCodeIdentifier ("_message"));
1369                 ccall.add_argument (get_dbus_timeout (m));
1370                 ccall.add_argument (dbus_error);
1371                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_reply"), ccall)));
1372
1373                 var conn_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_unref"));
1374                 conn_unref.add_argument (new CCodeIdentifier ("_connection"));
1375                 block.add_statement (new CCodeExpressionStatement (conn_unref));
1376
1377                 var message_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
1378                 message_unref.add_argument (new CCodeIdentifier ("_message"));
1379                 block.add_statement (new CCodeExpressionStatement (message_unref));
1380
1381                 check_error_reply (m, block);
1382                 check_reply_signature (m, block);
1383
1384                 block.add_statement (postfragment);
1385
1386                 var reply_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
1387                 reply_unref.add_argument (new CCodeIdentifier ("_reply"));
1388                 block.add_statement (new CCodeExpressionStatement (reply_unref));
1389
1390                 block.add_statement (new CCodeReturnStatement (new CCodeIdentifier ("_result")));
1391
1392                 cfile.add_type_member_declaration (function.copy ());
1393
1394                 function.block = block;
1395                 cfile.add_function (function);
1396
1397                 return get_all_func;
1398         }
1399
1400         public override void visit_method_call (MethodCall expr) {
1401                 var mtype = expr.call.value_type as MethodType;
1402                 bool proxy_new_from_type = (mtype != null && mtype.method_symbol.get_cname () == "dbus_g_proxy_new_from_type");
1403                 bool proxy_get_all = (mtype != null && mtype.method_symbol.get_cname () == "dbus_g_proxy_get_all");
1404                 if (!proxy_new_from_type && !proxy_get_all) {
1405                         base.visit_method_call (expr);
1406                         return;
1407                 }
1408
1409                 if (proxy_get_all) {
1410                         var ma = expr.call as MemberAccess;
1411                         var instance = ma.inner;
1412                         instance.emit (this);
1413
1414                         var args = expr.get_argument_list ();
1415                         Expression interface_name = args.get (0);
1416                         interface_name.emit (this);
1417
1418                         var ccall = new CCodeFunctionCall (new CCodeIdentifier (generate_get_all_function (mtype.method_symbol)));
1419                         ccall.add_argument ((CCodeExpression) instance.ccodenode);
1420                         ccall.add_argument ((CCodeExpression) interface_name.ccodenode);
1421
1422                         current_method_inner_error = true;
1423                         ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, get_variable_cexpression ("_inner_error_")));
1424
1425                         expr.ccodenode = ccall;
1426                         return;
1427                 }
1428
1429                 var args = expr.get_argument_list ();
1430                 Expression connection = ((MemberAccess) expr.call).inner;
1431                 Expression bus_name = args.get (0);
1432                 Expression object_path = args.get (1);
1433                 Expression interface_name = args.get (2);
1434                 Expression type = args.get (3);
1435
1436                 var quark_call = new CCodeFunctionCall (new CCodeIdentifier ("g_quark_from_string"));
1437                 quark_call.add_argument (new CCodeConstant ("\"ValaDBusInterfaceProxyType\""));
1438
1439                 var qdata_call = new CCodeFunctionCall (new CCodeIdentifier ("g_type_get_qdata"));
1440                 type.emit (this);
1441                 qdata_call.add_argument ((CCodeExpression) type.ccodenode);
1442                 qdata_call.add_argument (quark_call);
1443
1444                 var get_type_call = new CCodeFunctionCall (new CCodeCastExpression (qdata_call, "GType (*)(void)"));
1445
1446                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("g_object_new"));
1447                 ccall.add_argument (get_type_call);
1448                 ccall.add_argument (new CCodeConstant ("\"connection\""));
1449                 connection.emit (this);
1450                 ccall.add_argument ((CCodeExpression) connection.ccodenode);
1451                 ccall.add_argument (new CCodeConstant ("\"name\""));
1452                 bus_name.emit (this);
1453                 ccall.add_argument ((CCodeExpression) bus_name.ccodenode);
1454                 ccall.add_argument (new CCodeConstant ("\"path\""));
1455                 object_path.emit (this);
1456                 ccall.add_argument ((CCodeExpression) object_path.ccodenode);
1457                 ccall.add_argument (new CCodeConstant ("\"interface\""));
1458                 interface_name.emit (this);
1459                 ccall.add_argument ((CCodeExpression) interface_name.ccodenode);
1460                 ccall.add_argument (new CCodeConstant ("NULL"));
1461                 expr.ccodenode = ccall;
1462         }
1463
1464         void generate_proxy_filter_function (Interface iface) {
1465                 string lower_cname = iface.get_lower_case_cprefix () + "dbus_proxy";
1466
1467                 var proxy_filter = new CCodeFunction (lower_cname + "_filter", "DBusHandlerResult");
1468                 proxy_filter.add_parameter (new CCodeFormalParameter ("connection", "DBusConnection*"));
1469                 proxy_filter.add_parameter (new CCodeFormalParameter ("message", "DBusMessage*"));
1470                 proxy_filter.add_parameter (new CCodeFormalParameter ("user_data", "void*"));
1471
1472                 var filter_block = new CCodeBlock ();
1473
1474                 // only handle signals concering the object path
1475                 var path = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_get_path"));
1476                 path.add_argument (new CCodeIdentifier ("user_data"));
1477
1478                 var ccheck = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_has_path"));
1479                 ccheck.add_argument (new CCodeIdentifier ("message"));
1480                 ccheck.add_argument (path);
1481
1482                 var object_filter_block = new CCodeBlock ();
1483                 filter_block.add_statement (new CCodeIfStatement (ccheck, object_filter_block));
1484
1485                 handle_signals (iface, object_filter_block);
1486
1487                 filter_block.add_statement (new CCodeReturnStatement (new CCodeIdentifier ("DBUS_HANDLER_RESULT_NOT_YET_HANDLED")));
1488
1489                 cfile.add_type_member_declaration (proxy_filter.copy ());
1490                 proxy_filter.block = filter_block;
1491                 cfile.add_function (proxy_filter);
1492         }
1493
1494         string generate_dbus_signal_handler (Signal sig, ObjectTypeSymbol sym) {
1495                 string wrapper_name = "_dbus_handle_%s_%s".printf (sym.get_lower_case_cname (), sig.get_cname ());
1496
1497                 // declaration
1498
1499                 CCodeDeclaration cdecl;
1500
1501                 var function = new CCodeFunction (wrapper_name, "void");
1502                 function.modifiers = CCodeModifiers.STATIC;
1503
1504                 function.add_parameter (new CCodeFormalParameter ("self", sym.get_cname () + "*"));
1505                 function.add_parameter (new CCodeFormalParameter ("connection", "DBusConnection*"));
1506                 function.add_parameter (new CCodeFormalParameter ("message", "DBusMessage*"));
1507
1508                 var block = new CCodeBlock ();
1509                 var prefragment = new CCodeFragment ();
1510                 var postfragment = new CCodeFragment ();
1511
1512                 cdecl = new CCodeDeclaration ("DBusMessageIter");
1513                 cdecl.add_declarator (new CCodeVariableDeclarator ("iter"));
1514                 block.add_statement (cdecl);
1515
1516                 block.add_statement (prefragment);
1517
1518                 var message_signature = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_get_signature"));
1519                 message_signature.add_argument (new CCodeIdentifier ("message"));
1520                 var signature_check = new CCodeFunctionCall (new CCodeIdentifier ("strcmp"));
1521                 signature_check.add_argument (message_signature);
1522                 var signature_error_block = new CCodeBlock ();
1523                 signature_error_block.add_statement (new CCodeReturnStatement ());
1524                 prefragment.append (new CCodeIfStatement (signature_check, signature_error_block));
1525
1526                 var iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_init"));
1527                 iter_call.add_argument (new CCodeIdentifier ("message"));
1528                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("iter")));
1529                 prefragment.append (new CCodeExpressionStatement (iter_call));
1530
1531                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("g_signal_emit_by_name"));
1532                 ccall.add_argument (new CCodeIdentifier ("self"));
1533                 ccall.add_argument (sig.get_canonical_cconstant ());
1534
1535                 // expected type signature for input parameters
1536                 string type_signature = "";
1537
1538                 foreach (FormalParameter param in sig.get_parameters ()) {
1539                         var owned_type = param.variable_type.copy ();
1540                         owned_type.value_owned = true;
1541
1542                         cdecl = new CCodeDeclaration (owned_type.get_cname ());
1543                         cdecl.add_declarator (new CCodeVariableDeclarator.zero (param.name, default_value_for_type (param.variable_type, true)));
1544                         prefragment.append (cdecl);
1545
1546                         if (get_type_signature (param.variable_type) == null) {
1547                                 Report.error (param.variable_type.source_reference, "D-Bus serialization of type `%s' is not supported".printf (param.variable_type.to_string ()));
1548                                 continue;
1549                         }
1550
1551                         var st = param.variable_type.data_type as Struct;
1552                         if (st != null && !st.is_simple_type ()) {
1553                                 ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier (param.name)));
1554                         } else {
1555                                 ccall.add_argument (new CCodeIdentifier (param.name));
1556                         }
1557
1558                         if (param.variable_type is ArrayType) {
1559                                 var array_type = (ArrayType) param.variable_type;
1560
1561                                 for (int dim = 1; dim <= array_type.rank; dim++) {
1562                                         string length_cname = get_array_length_cname (param.name, dim);
1563
1564                                         cdecl = new CCodeDeclaration ("int");
1565                                         cdecl.add_declarator (new CCodeVariableDeclarator (length_cname, new CCodeConstant ("0")));
1566                                         prefragment.append (cdecl);
1567                                         ccall.add_argument (new CCodeIdentifier (length_cname));
1568                                 }
1569                         }
1570
1571                         type_signature += get_type_signature (param.variable_type);
1572
1573                         var target = new CCodeIdentifier (param.name);
1574                         var expr = read_expression (prefragment, param.variable_type, new CCodeIdentifier ("iter"), target);
1575                         prefragment.append (new CCodeExpressionStatement (new CCodeAssignment (target, expr)));
1576
1577                         if (requires_destroy (owned_type)) {
1578                                 // keep local alive (symbol_reference is weak)
1579                                 var local = new LocalVariable (owned_type, param.name);
1580                                 var ma = new MemberAccess.simple (param.name);
1581                                 ma.symbol_reference = local;
1582                                 var stmt = new CCodeExpressionStatement (get_unref_expression (new CCodeIdentifier (param.name), owned_type, ma));
1583                                 postfragment.append (stmt);
1584                         }
1585                 }
1586
1587                 signature_check.add_argument (new CCodeConstant ("\"%s\"".printf (type_signature)));
1588
1589                 block.add_statement (new CCodeExpressionStatement (ccall));
1590
1591                 block.add_statement (postfragment);
1592
1593                 cdecl = new CCodeDeclaration ("DBusMessage*");
1594                 cdecl.add_declarator (new CCodeVariableDeclarator ("reply"));
1595                 block.add_statement (cdecl);
1596
1597                 cfile.add_type_member_declaration (function.copy ());
1598
1599                 function.block = block;
1600                 cfile.add_function (function);
1601
1602                 return wrapper_name;
1603         }
1604
1605         void handle_signal (string dbus_iface_name, string dbus_signal_name, string handler_name, CCodeBlock block, ref CCodeIfStatement clastif) {
1606                 var ccheck = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_is_signal"));
1607                 ccheck.add_argument (new CCodeIdentifier ("message"));
1608                 ccheck.add_argument (new CCodeConstant ("\"%s\"".printf (dbus_iface_name)));
1609                 ccheck.add_argument (new CCodeConstant ("\"%s\"".printf (dbus_signal_name)));
1610
1611                 var callblock = new CCodeBlock ();
1612
1613                 var ccall = new CCodeFunctionCall (new CCodeIdentifier (handler_name));
1614                 ccall.add_argument (new CCodeIdentifier ("user_data"));
1615                 ccall.add_argument (new CCodeIdentifier ("connection"));
1616                 ccall.add_argument (new CCodeIdentifier ("message"));
1617
1618                 callblock.add_statement (new CCodeExpressionStatement (ccall));
1619
1620                 var cif = new CCodeIfStatement (ccheck, callblock);
1621                 if (clastif == null) {
1622                         block.add_statement (cif);
1623                 } else {
1624                         clastif.false_statement = cif;
1625                 }
1626
1627                 clastif = cif;
1628         }
1629
1630         void handle_signals (Interface iface, CCodeBlock block) {
1631                 string dbus_iface_name = get_dbus_name (iface);
1632
1633                 CCodeIfStatement clastif = null;
1634                 foreach (Signal sig in iface.get_signals ()) {
1635                         if (sig.access != SymbolAccessibility.PUBLIC) {
1636                                 continue;
1637                         }
1638
1639                         handle_signal (dbus_iface_name, get_dbus_name_for_member (sig), generate_dbus_signal_handler (sig, iface), block, ref clastif);
1640                 }
1641         }
1642
1643         void generate_marshalling (Method m, string dbus_iface_name, CCodeFragment prefragment, CCodeFragment postfragment) {
1644                 CCodeDeclaration cdecl;
1645
1646                 var no_reply = is_dbus_no_reply (m);
1647
1648                 var destination = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_get_bus_name"));
1649                 destination.add_argument (new CCodeCastExpression (new CCodeIdentifier ("self"), "DBusGProxy*"));
1650                 var path = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_get_path"));
1651                 path.add_argument (new CCodeCastExpression (new CCodeIdentifier ("self"), "DBusGProxy*"));
1652
1653                 var msgcall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_new_method_call"));
1654                 msgcall.add_argument (destination);
1655                 msgcall.add_argument (path);
1656                 msgcall.add_argument (new CCodeConstant ("\"%s\"".printf (dbus_iface_name)));
1657                 msgcall.add_argument (new CCodeConstant ("\"%s\"".printf (get_dbus_name_for_member (m))));
1658                 prefragment.append (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_message"), msgcall)));
1659
1660                 if (no_reply) {
1661                         var noreplycall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_set_no_reply"));
1662                         noreplycall.add_argument (new CCodeIdentifier ("_message"));
1663                         noreplycall.add_argument (new CCodeConstant ("TRUE"));
1664                         prefragment.append (new CCodeExpressionStatement (noreplycall));
1665                 }
1666
1667                 var iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_init_append"));
1668                 iter_call.add_argument (new CCodeIdentifier ("_message"));
1669                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_iter")));
1670                 prefragment.append (new CCodeExpressionStatement (iter_call));
1671
1672                 if (!no_reply) {
1673                         iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_init"));
1674                         iter_call.add_argument (new CCodeIdentifier ("_reply"));
1675                         iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_iter")));
1676                         postfragment.append (new CCodeExpressionStatement (iter_call));
1677                 }
1678
1679                 foreach (FormalParameter param in m.get_parameters ()) {
1680                         if (param.direction == ParameterDirection.IN) {
1681                                 if (param.variable_type.data_type != null
1682                                     && param.variable_type.data_type.get_full_name () == "DBus.BusName") {
1683                                         // ignore BusName sender parameters
1684                                         continue;
1685                                 }
1686                                 CCodeExpression expr = new CCodeIdentifier (param.name);
1687                                 if (param.variable_type.is_real_struct_type ()) {
1688                                         expr = new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, expr);
1689                                 }
1690                                 write_expression (prefragment, param.variable_type, new CCodeIdentifier ("_iter"), expr);
1691                         } else {
1692                                 if (no_reply) {
1693                                         Report.error (param.source_reference, "No-reply DBus methods must not have out parameters");
1694                                         break;
1695                                 }
1696                                 cdecl = new CCodeDeclaration (param.variable_type.get_cname ());
1697                                 cdecl.add_declarator (new CCodeVariableDeclarator ("_" + param.name));
1698                                 postfragment.append (cdecl);
1699
1700                                 var array_type = param.variable_type as ArrayType;
1701
1702                                 if (array_type != null) {
1703                                         for (int dim = 1; dim <= array_type.rank; dim++) {
1704                                                 cdecl = new CCodeDeclaration ("int");
1705                                                 cdecl.add_declarator (new CCodeVariableDeclarator ("_%s_length%d".printf (param.name, dim), new CCodeConstant ("0")));
1706                                                 postfragment.append (cdecl);
1707                                         }
1708                                 }
1709
1710                                 var target = new CCodeIdentifier ("_" + param.name);
1711                                 var expr = read_expression (postfragment, param.variable_type, new CCodeIdentifier ("_iter"), target);
1712                                 postfragment.append (new CCodeExpressionStatement (new CCodeAssignment (target, expr)));
1713
1714                                 // TODO check that parameter is not NULL (out parameters are optional)
1715                                 // free value if parameter is NULL
1716                                 postfragment.append (new CCodeExpressionStatement (new CCodeAssignment (new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier (param.name)), target)));
1717
1718
1719                                 if (array_type != null) {
1720                                         for (int dim = 1; dim <= array_type.rank; dim++) {
1721                                                 // TODO check that parameter is not NULL (out parameters are optional)
1722                                                 postfragment.append (new CCodeExpressionStatement (new CCodeAssignment (new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("%s_length%d".printf (param.name, dim))), new CCodeIdentifier ("_%s_length%d".printf (param.name, dim)))));
1723                                         }
1724                                 }
1725                         }
1726                 }
1727
1728                 if (!(m.return_type is VoidType)) {
1729                         if (no_reply) {
1730                                 Report.error (m.return_type.source_reference, "No-reply DBus methods must return void");
1731                         }
1732                         if (m.return_type.is_real_non_null_struct_type ()) {
1733                                 var target = new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("result"));
1734                                 var expr = read_expression (postfragment, m.return_type, new CCodeIdentifier ("_iter"), target);
1735                                 postfragment.append (new CCodeExpressionStatement (new CCodeAssignment (target, expr)));
1736                         } else {
1737                                 cdecl = new CCodeDeclaration (m.return_type.get_cname ());
1738                                 cdecl.add_declarator (new CCodeVariableDeclarator ("_result"));
1739                                 postfragment.append (cdecl);
1740
1741                                 var array_type = m.return_type as ArrayType;
1742
1743                                 if (array_type != null) {
1744                                         for (int dim = 1; dim <= array_type.rank; dim++) {
1745                                                 cdecl = new CCodeDeclaration ("int");
1746                                                 cdecl.add_declarator (new CCodeVariableDeclarator ("_result_length%d".printf (dim), new CCodeConstant ("0")));
1747                                                 postfragment.append (cdecl);
1748                                         }
1749                                 }
1750
1751                                 var target = new CCodeIdentifier ("_result");
1752                                 var expr = read_expression (postfragment, m.return_type, new CCodeIdentifier ("_iter"), target);
1753                                 postfragment.append (new CCodeExpressionStatement (new CCodeAssignment (target, expr)));
1754
1755                                 if (array_type != null) {
1756                                         for (int dim = 1; dim <= array_type.rank; dim++) {
1757                                                 // TODO check that parameter is not NULL (out parameters are optional)
1758                                                 postfragment.append (new CCodeExpressionStatement (new CCodeAssignment (new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("result_length%d".printf (dim))), new CCodeIdentifier ("_result_length%d".printf (dim)))));
1759                                         }
1760                                 }
1761                         }
1762                 }
1763         }
1764
1765         void check_error_reply (Method m, CCodeBlock block) {
1766                 var error_types = m.get_error_types ();
1767                 if (!has_dbus_error (error_types)) {
1768                         Report.error (m.source_reference, "D-Bus methods must throw DBus.Error");
1769                         return;
1770                 }
1771                 if (is_dbus_no_reply (m)) {
1772                         // no-reply messages throw no error
1773                         return;
1774                 }
1775
1776                 var dbus_error = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_dbus_error"));
1777
1778                 var error_block = new CCodeBlock ();
1779
1780                 var cdecl = new CCodeDeclaration ("GQuark");
1781                 cdecl.add_declarator (new CCodeVariableDeclarator ("_edomain"));
1782                 error_block.add_statement (cdecl);
1783
1784                 cdecl = new CCodeDeclaration ("gint");
1785                 cdecl.add_declarator (new CCodeVariableDeclarator ("_ecode"));
1786                 error_block.add_statement (cdecl);
1787
1788                 generate_client_error_cases (error_block, error_types, new CCodeMemberAccess (new CCodeIdentifier ("_dbus_error"), "name"), new CCodeIdentifier ("_edomain"), new CCodeIdentifier ("_ecode"));
1789
1790                 var g_set_error = new CCodeFunctionCall (new CCodeIdentifier ("g_set_error"));
1791                 g_set_error.add_argument (new CCodeIdentifier ("error"));
1792                 g_set_error.add_argument (new CCodeIdentifier ("_edomain"));
1793                 g_set_error.add_argument (new CCodeIdentifier ("_ecode"));
1794                 g_set_error.add_argument (new CCodeConstant ("\"%s\""));
1795                 g_set_error.add_argument (new CCodeMemberAccess (new CCodeIdentifier ("_dbus_error"), "message"));
1796                 error_block.add_statement (new CCodeExpressionStatement (g_set_error));
1797
1798                 var dbus_error_free = new CCodeFunctionCall (new CCodeIdentifier ("dbus_error_free"));
1799                 dbus_error_free.add_argument (dbus_error);
1800                 error_block.add_statement (new CCodeExpressionStatement (dbus_error_free));
1801
1802                 if (m.return_type is VoidType || m.return_type.is_real_non_null_struct_type ()) {
1803                         error_block.add_statement (new CCodeReturnStatement ());
1804                 } else {
1805                         error_block.add_statement (new CCodeReturnStatement (default_value_for_type (m.return_type, false)));
1806                 }
1807
1808                 var dbus_error_is_set = new CCodeFunctionCall (new CCodeIdentifier ("dbus_error_is_set"));
1809                 dbus_error_is_set.add_argument (dbus_error);
1810                 block.add_statement (new CCodeIfStatement (dbus_error_is_set, error_block));
1811         }
1812
1813         string generate_dbus_proxy_method (Interface main_iface, Interface iface, Method m) {
1814                 string proxy_name = "%sdbus_proxy_%s".printf (main_iface.get_lower_case_cprefix (), m.name);
1815
1816                 string dbus_iface_name = get_dbus_name (iface);
1817
1818                 CCodeDeclaration cdecl;
1819
1820                 var function = new CCodeFunction (proxy_name);
1821                 function.modifiers = CCodeModifiers.STATIC;
1822
1823                 var cparam_map = new HashMap<int,CCodeFormalParameter> (direct_hash, direct_equal);
1824
1825                 generate_cparameters (m, cfile, cparam_map, function);
1826
1827                 var block = new CCodeBlock ();
1828                 var prefragment = new CCodeFragment ();
1829                 var postfragment = new CCodeFragment ();
1830
1831                 // throw error and return if proxy is disposed
1832                 var dispose_return_block = new CCodeBlock ();
1833                 if (m.get_error_types ().size > 0) {
1834                         var set_error_call = new CCodeFunctionCall (new CCodeIdentifier ("g_set_error"));
1835                         set_error_call.add_argument (new CCodeIdentifier ("error"));
1836                         set_error_call.add_argument (new CCodeIdentifier ("DBUS_GERROR"));
1837                         set_error_call.add_argument (new CCodeIdentifier ("DBUS_GERROR_DISCONNECTED"));
1838                         set_error_call.add_argument (new CCodeConstant ("\"%s\""));
1839                         set_error_call.add_argument (new CCodeConstant ("\"Connection is closed\""));
1840                         dispose_return_block.add_statement (new CCodeExpressionStatement (set_error_call));
1841                 }
1842                 if (m.return_type is VoidType || m.return_type.is_real_non_null_struct_type ()) {
1843                         dispose_return_block.add_statement (new CCodeReturnStatement ());
1844                 } else {
1845                         dispose_return_block.add_statement (new CCodeReturnStatement (default_value_for_type (m.return_type, false)));
1846                 }
1847                 block.add_statement (new CCodeIfStatement (new CCodeMemberAccess.pointer (new CCodeCastExpression (new CCodeIdentifier ("self"), iface.get_cname () + "DBusProxy*"), "disposed"), dispose_return_block));
1848
1849                 cdecl = new CCodeDeclaration ("DBusError");
1850                 cdecl.add_declarator (new CCodeVariableDeclarator ("_dbus_error"));
1851                 block.add_statement (cdecl);
1852
1853                 var dbus_error = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_dbus_error"));
1854
1855                 cdecl = new CCodeDeclaration ("DBusGConnection");
1856                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_connection"));
1857                 block.add_statement (cdecl);
1858
1859                 cdecl = new CCodeDeclaration ("DBusMessage");
1860                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_message"));
1861                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_reply"));
1862                 block.add_statement (cdecl);
1863
1864                 cdecl = new CCodeDeclaration ("DBusMessageIter");
1865                 cdecl.add_declarator (new CCodeVariableDeclarator ("_iter"));
1866                 block.add_statement (cdecl);
1867
1868                 block.add_statement (prefragment);
1869
1870                 generate_marshalling (m, dbus_iface_name, prefragment, postfragment);
1871
1872                 var gconnection = new CCodeFunctionCall (new CCodeIdentifier ("g_object_get"));
1873                 gconnection.add_argument (new CCodeIdentifier ("self"));
1874                 gconnection.add_argument (new CCodeConstant ("\"connection\""));
1875                 gconnection.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_connection")));
1876                 gconnection.add_argument (new CCodeConstant ("NULL"));
1877                 block.add_statement (new CCodeExpressionStatement (gconnection));
1878
1879                 var dbus_error_init = new CCodeFunctionCall (new CCodeIdentifier ("dbus_error_init"));
1880                 dbus_error_init.add_argument (dbus_error);
1881                 block.add_statement (new CCodeExpressionStatement (dbus_error_init));
1882
1883                 var connection = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_get_connection"));
1884                 connection.add_argument (new CCodeIdentifier ("_connection"));
1885
1886                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_connection_send_with_reply_and_block"));
1887                 ccall.add_argument (connection);
1888                 ccall.add_argument (new CCodeIdentifier ("_message"));
1889                 ccall.add_argument (get_dbus_timeout (m));
1890                 ccall.add_argument (dbus_error);
1891                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_reply"), ccall)));
1892
1893                 var conn_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_unref"));
1894                 conn_unref.add_argument (new CCodeIdentifier ("_connection"));
1895                 block.add_statement (new CCodeExpressionStatement (conn_unref));
1896
1897                 var message_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
1898                 message_unref.add_argument (new CCodeIdentifier ("_message"));
1899                 block.add_statement (new CCodeExpressionStatement (message_unref));
1900
1901                 check_error_reply (m, block);
1902                 check_reply_signature (m, block);
1903
1904                 block.add_statement (postfragment);
1905
1906                 var reply_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
1907                 reply_unref.add_argument (new CCodeIdentifier ("_reply"));
1908                 block.add_statement (new CCodeExpressionStatement (reply_unref));
1909
1910                 if (!(m.return_type is VoidType || m.return_type.is_real_non_null_struct_type ())) {
1911                         block.add_statement (new CCodeReturnStatement (new CCodeIdentifier ("_result")));
1912                 }
1913
1914                 cfile.add_type_member_declaration (function.copy ());
1915                 function.block = block;
1916                 cfile.add_function (function);
1917
1918                 return proxy_name;
1919         }
1920
1921         string generate_noreply_dbus_proxy_method (Interface main_iface, Interface iface, Method m) {
1922                 string proxy_name = "%sdbus_proxy_%s".printf (main_iface.get_lower_case_cprefix (), m.name);
1923
1924                 string dbus_iface_name = get_dbus_name (iface);
1925
1926                 CCodeDeclaration cdecl;
1927
1928                 var function = new CCodeFunction (proxy_name);
1929                 function.modifiers = CCodeModifiers.STATIC;
1930
1931                 var cparam_map = new HashMap<int,CCodeFormalParameter> (direct_hash, direct_equal);
1932
1933                 generate_cparameters (m, cfile, cparam_map, function);
1934
1935                 var block = new CCodeBlock ();
1936                 var prefragment = new CCodeFragment ();
1937                 var postfragment = new CCodeFragment ();
1938
1939                 // throw error and return if proxy is disposed
1940                 var dispose_return_block = new CCodeBlock ();
1941                 if (m.get_error_types ().size > 0) {
1942                         var set_error_call = new CCodeFunctionCall (new CCodeIdentifier ("g_set_error"));
1943                         set_error_call.add_argument (new CCodeIdentifier ("error"));
1944                         set_error_call.add_argument (new CCodeIdentifier ("DBUS_GERROR"));
1945                         set_error_call.add_argument (new CCodeIdentifier ("DBUS_GERROR_DISCONNECTED"));
1946                         set_error_call.add_argument (new CCodeConstant ("\"%s\""));
1947                         set_error_call.add_argument (new CCodeConstant ("\"Connection is closed\""));
1948                         dispose_return_block.add_statement (new CCodeExpressionStatement (set_error_call));
1949                         dispose_return_block.add_statement (new CCodeReturnStatement ());
1950                 }
1951                 block.add_statement (new CCodeIfStatement (new CCodeMemberAccess.pointer (new CCodeCastExpression (new CCodeIdentifier ("self"), iface.get_cname () + "DBusProxy*"), "disposed"), dispose_return_block));
1952
1953                 cdecl = new CCodeDeclaration ("DBusGConnection");
1954                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_connection"));
1955                 block.add_statement (cdecl);
1956
1957                 cdecl = new CCodeDeclaration ("DBusMessage");
1958                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_message"));
1959                 block.add_statement (cdecl);
1960
1961                 cdecl = new CCodeDeclaration ("DBusMessageIter");
1962                 cdecl.add_declarator (new CCodeVariableDeclarator ("_iter"));
1963                 block.add_statement (cdecl);
1964
1965                 block.add_statement (prefragment);
1966
1967                 generate_marshalling (m, dbus_iface_name, prefragment, postfragment);
1968
1969                 var gconnection = new CCodeFunctionCall (new CCodeIdentifier ("g_object_get"));
1970                 gconnection.add_argument (new CCodeIdentifier ("self"));
1971                 gconnection.add_argument (new CCodeConstant ("\"connection\""));
1972                 gconnection.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_connection")));
1973                 gconnection.add_argument (new CCodeConstant ("NULL"));
1974                 block.add_statement (new CCodeExpressionStatement (gconnection));
1975
1976                 var connection = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_get_connection"));
1977                 connection.add_argument (new CCodeIdentifier ("_connection"));
1978
1979                 var oom_return_block = new CCodeBlock ();
1980                 if (m.get_error_types ().size > 0) {
1981                         var set_error_call = new CCodeFunctionCall (new CCodeIdentifier ("g_set_error"));
1982                         set_error_call.add_argument (new CCodeIdentifier ("error"));
1983                         set_error_call.add_argument (new CCodeIdentifier ("DBUS_GERROR"));
1984                         set_error_call.add_argument (new CCodeIdentifier ("DBUS_GERROR_NO_MEMORY"));
1985                         set_error_call.add_argument (new CCodeConstant ("\"%s\""));
1986                         set_error_call.add_argument (new CCodeConstant ("\"Out of memory\""));
1987                         oom_return_block.add_statement (new CCodeExpressionStatement (set_error_call));
1988                         oom_return_block.add_statement (new CCodeReturnStatement ());
1989                 }
1990
1991                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_connection_send"));
1992                 ccall.add_argument (connection);
1993                 ccall.add_argument (new CCodeIdentifier ("_message"));
1994                 ccall.add_argument (new CCodeConstant ("NULL"));
1995                 block.add_statement (new CCodeIfStatement (new CCodeUnaryExpression (CCodeUnaryOperator.LOGICAL_NEGATION, ccall), oom_return_block));
1996
1997                 var conn_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_unref"));
1998                 conn_unref.add_argument (new CCodeIdentifier ("_connection"));
1999                 block.add_statement (new CCodeExpressionStatement (conn_unref));
2000
2001                 var message_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2002                 message_unref.add_argument (new CCodeIdentifier ("_message"));
2003                 block.add_statement (new CCodeExpressionStatement (message_unref));
2004
2005                 check_error_reply (m, block);
2006
2007                 block.add_statement (postfragment);
2008
2009                 cfile.add_type_member_declaration (function.copy ());
2010                 function.block = block;
2011                 cfile.add_function (function);
2012
2013                 return proxy_name;
2014         }
2015
2016         void generate_client_error_cases (CCodeBlock error_block, List<DataType> error_types, CCodeExpression dbus_error_name, CCodeExpression result_edomain, CCodeExpression result_ecode) {
2017                 CCodeStatement if_else_if = null;
2018                 CCodeIfStatement last_statement = null;
2019
2020                 foreach (DataType error_type in error_types) {
2021                         var edomain = ((ErrorType) error_type).error_domain;
2022
2023                         if (edomain == null) {
2024                                 Report.error (error_type.source_reference, "Generic errors cannot be serialized over DBus");
2025                                 continue;
2026                         }
2027
2028                         var edomain_dbus_name = get_dbus_name (edomain);
2029                         if (edomain_dbus_name == null) {
2030                                 Report.error (edomain.source_reference, "Errordomain must have a DBus.name annotation to be serialized over DBus");
2031                         }
2032
2033                         var true_block = new CCodeBlock ();
2034                         true_block.suppress_newline = true;
2035
2036                         string temp_name = "_tmp%d_".printf (next_temp_var_id++);
2037
2038                         var cdecl = new CCodeDeclaration ("const char*");
2039                         cdecl.add_declarator (new CCodeVariableDeclarator (temp_name));
2040                         true_block.add_statement (cdecl);
2041
2042                         true_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (result_edomain, new CCodeIdentifier (edomain.get_upper_case_cname ()))));
2043
2044                         true_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier (temp_name), new CCodeBinaryExpression (CCodeBinaryOperator.PLUS, dbus_error_name, new CCodeConstant ("%ld".printf (edomain_dbus_name.length + 1))))));
2045
2046                         CCodeStatement inner_if_else_if = null;
2047                         CCodeIfStatement inner_last_statement = null;
2048                         foreach (ErrorCode ecode in edomain.get_codes ()) {
2049                                 var inner_true_block = new CCodeBlock ();
2050                                 inner_true_block.suppress_newline = true;
2051                                 inner_true_block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (result_ecode, new CCodeIdentifier (ecode.get_cname ()))));
2052
2053                                 var ecode_dbus_name = get_dbus_name (ecode);
2054                                 if (ecode_dbus_name == null) {
2055                                         ecode_dbus_name = Symbol.lower_case_to_camel_case (ecode.name.down ());
2056                                 }
2057
2058                                 var string_comparison = new CCodeFunctionCall (new CCodeIdentifier ("strcmp"));
2059                                 string_comparison.add_argument (new CCodeIdentifier (temp_name));
2060                                 string_comparison.add_argument (new CCodeConstant ("\"%s\"".printf (ecode_dbus_name)));
2061                                 var stmt = new CCodeIfStatement (new CCodeBinaryExpression (CCodeBinaryOperator.EQUALITY, string_comparison, new CCodeConstant ("0")), inner_true_block);
2062
2063                                 if (inner_last_statement != null) {
2064                                         inner_last_statement.false_statement = stmt;
2065                                 } else {
2066                                         inner_if_else_if = stmt;
2067                                 }
2068                                 inner_last_statement = stmt;
2069                         }
2070                         true_block.add_statement (inner_if_else_if);
2071
2072                         var string_comparison = new CCodeFunctionCall (new CCodeIdentifier ("strstr"));
2073                         string_comparison.add_argument (dbus_error_name);
2074                         string_comparison.add_argument (new CCodeConstant ("\"%s\"".printf (edomain_dbus_name)));
2075                         var stmt = new CCodeIfStatement (new CCodeBinaryExpression (CCodeBinaryOperator.EQUALITY, string_comparison, dbus_error_name), true_block);
2076
2077                         if (last_statement != null) {
2078                                 last_statement.false_statement = stmt;
2079                         } else {
2080                                 if_else_if = stmt;
2081                         }
2082                         last_statement = stmt;
2083                 }
2084                 error_block.add_statement (if_else_if);
2085         }
2086
2087         string generate_async_dbus_proxy_method (Interface main_iface, Interface iface, Method m) {
2088                 string proxy_name = "%sdbus_proxy_%s_async".printf (main_iface.get_lower_case_cprefix (), m.name);
2089
2090                 string dbus_iface_name = get_dbus_name (iface);
2091
2092                 CCodeDeclaration cdecl;
2093
2094
2095                 // generate data struct
2096
2097                 string dataname = "%sDBusProxy%sData".printf (iface.get_cname (), Symbol.lower_case_to_camel_case (m.name));
2098                 var datastruct = new CCodeStruct ("_" + dataname);
2099
2100                 datastruct.add_field ("GAsyncReadyCallback", "_callback_");
2101                 datastruct.add_field ("gpointer", "_user_data_");
2102                 datastruct.add_field ("DBusPendingCall*", "pending");
2103
2104                 cfile.add_type_definition (datastruct);
2105                 cfile.add_type_declaration (new CCodeTypeDefinition ("struct _" + dataname, new CCodeVariableDeclarator (dataname)));
2106
2107
2108                 // generate async function
2109
2110                 var function = new CCodeFunction (proxy_name, "void");
2111                 function.modifiers = CCodeModifiers.STATIC;
2112
2113                 var cparam_map = new HashMap<int,CCodeFormalParameter> (direct_hash, direct_equal);
2114
2115                 cparam_map.set (get_param_pos (-1), new CCodeFormalParameter ("_callback_", "GAsyncReadyCallback"));
2116                 cparam_map.set (get_param_pos (-0.9), new CCodeFormalParameter ("_user_data_", "gpointer"));
2117
2118                 generate_cparameters (m, cfile, cparam_map, function, null, null, null, 1);
2119
2120                 var block = new CCodeBlock ();
2121                 var prefragment = new CCodeFragment ();
2122                 var postfragment = new CCodeFragment ();
2123
2124                 cdecl = new CCodeDeclaration ("DBusGConnection");
2125                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_connection"));
2126                 block.add_statement (cdecl);
2127
2128                 cdecl = new CCodeDeclaration ("DBusMessage");
2129                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_message"));
2130                 block.add_statement (cdecl);
2131
2132                 cdecl = new CCodeDeclaration ("DBusPendingCall");
2133                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_pending"));
2134                 block.add_statement (cdecl);
2135
2136                 cdecl = new CCodeDeclaration ("DBusMessageIter");
2137                 cdecl.add_declarator (new CCodeVariableDeclarator ("_iter"));
2138                 block.add_statement (cdecl);
2139
2140                 block.add_statement (prefragment);
2141
2142                 generate_marshalling (m, dbus_iface_name, prefragment, postfragment);
2143
2144                 var gconnection = new CCodeFunctionCall (new CCodeIdentifier ("g_object_get"));
2145                 gconnection.add_argument (new CCodeIdentifier ("self"));
2146                 gconnection.add_argument (new CCodeConstant ("\"connection\""));
2147                 gconnection.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_connection")));
2148                 gconnection.add_argument (new CCodeConstant ("NULL"));
2149                 block.add_statement (new CCodeExpressionStatement (gconnection));
2150
2151                 var connection = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_get_connection"));
2152                 connection.add_argument (new CCodeIdentifier ("_connection"));
2153
2154                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_connection_send_with_reply"));
2155                 ccall.add_argument (connection);
2156                 ccall.add_argument (new CCodeIdentifier ("_message"));
2157                 ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_pending")));
2158                 ccall.add_argument (get_dbus_timeout (m));
2159                 block.add_statement (new CCodeExpressionStatement (ccall));
2160
2161                 var conn_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_unref"));
2162                 conn_unref.add_argument (new CCodeIdentifier ("_connection"));
2163                 block.add_statement (new CCodeExpressionStatement (conn_unref));
2164
2165                 var message_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2166                 message_unref.add_argument (new CCodeIdentifier ("_message"));
2167                 block.add_statement (new CCodeExpressionStatement (message_unref));
2168
2169                 var dataalloc = new CCodeFunctionCall (new CCodeIdentifier ("g_slice_new0"));
2170                 dataalloc.add_argument (new CCodeIdentifier (dataname));
2171
2172                 var datadecl = new CCodeDeclaration (dataname + "*");
2173                 datadecl.add_declarator (new CCodeVariableDeclarator ("_data_"));
2174                 block.add_statement (datadecl);
2175                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_data_"), dataalloc)));
2176
2177                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeMemberAccess.pointer (new CCodeIdentifier ("_data_"), "_callback_"), new CCodeIdentifier ("_callback_"))));
2178                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeMemberAccess.pointer (new CCodeIdentifier ("_data_"), "_user_data_"), new CCodeIdentifier ("_user_data_"))));
2179                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeMemberAccess.pointer (new CCodeIdentifier ("_data_"), "pending"), new CCodeIdentifier ("_pending"))));
2180
2181                 var pending = new CCodeFunctionCall (new CCodeIdentifier ("dbus_pending_call_set_notify"));
2182                 pending.add_argument (new CCodeIdentifier ("_pending"));
2183                 pending.add_argument (new CCodeIdentifier ("%sdbus_proxy_%s_ready".printf (iface.get_lower_case_cprefix (), m.name)));
2184                 pending.add_argument (new CCodeIdentifier ("_data_"));
2185                 pending.add_argument (new CCodeConstant ("NULL"));
2186                 block.add_statement (new CCodeExpressionStatement (pending));
2187
2188                 cfile.add_type_member_declaration (function.copy ());
2189                 function.block = block;
2190                 cfile.add_function (function);
2191
2192
2193                 // generate ready function
2194
2195                 function = new CCodeFunction ("%sdbus_proxy_%s_ready".printf (iface.get_lower_case_cprefix (), m.name), "void");
2196                 function.modifiers = CCodeModifiers.STATIC;
2197
2198                 function.add_parameter (new CCodeFormalParameter ("pending", "DBusPendingCall*"));
2199                 function.add_parameter (new CCodeFormalParameter ("user_data", "void*"));
2200
2201                 block = new CCodeBlock ();
2202
2203                 datadecl = new CCodeDeclaration (dataname + "*");
2204                 datadecl.add_declarator (new CCodeVariableDeclarator ("_data_"));
2205                 block.add_statement (datadecl);
2206                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_data_"), new CCodeIdentifier ("user_data"))));
2207
2208                 // complete async call by invoking callback
2209                 var obj_decl = new CCodeDeclaration ("GObject *");
2210                 obj_decl.add_declarator (new CCodeVariableDeclarator ("_obj_"));
2211                 block.add_statement (obj_decl);
2212
2213                 var object_creation = new CCodeFunctionCall (new CCodeIdentifier ("g_object_newv"));
2214                 object_creation.add_argument (new CCodeConstant ("G_TYPE_OBJECT"));
2215                 object_creation.add_argument (new CCodeConstant ("0"));
2216                 object_creation.add_argument (new CCodeConstant ("NULL"));
2217                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_obj_"), object_creation)));
2218
2219                 var async_result_decl = new CCodeDeclaration ("GSimpleAsyncResult *");
2220                 async_result_decl.add_declarator (new CCodeVariableDeclarator ("_res_"));
2221                 block.add_statement (async_result_decl);
2222
2223                 var async_result_creation = new CCodeFunctionCall (new CCodeIdentifier ("g_simple_async_result_new"));
2224                 async_result_creation.add_argument (new CCodeIdentifier ("_obj_"));
2225                 async_result_creation.add_argument (new CCodeMemberAccess.pointer (new CCodeIdentifier ("_data_"), "_callback_"));
2226                 async_result_creation.add_argument (new CCodeMemberAccess.pointer (new CCodeIdentifier ("_data_"), "_user_data_"));
2227                 async_result_creation.add_argument (new CCodeIdentifier ("_data_"));
2228                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_res_"), async_result_creation)));
2229
2230                 var completecall = new CCodeFunctionCall (new CCodeIdentifier ("g_simple_async_result_complete"));
2231                 completecall.add_argument (new CCodeIdentifier ("_res_"));
2232                 block.add_statement (new CCodeExpressionStatement (completecall));
2233
2234                 var obj_free = new CCodeFunctionCall (new CCodeIdentifier ("g_object_unref"));
2235                 obj_free.add_argument (new CCodeIdentifier ("_obj_"));
2236                 block.add_statement (new CCodeExpressionStatement (obj_free));
2237
2238                 var async_result_free = new CCodeFunctionCall (new CCodeIdentifier ("g_object_unref"));
2239                 async_result_free.add_argument (new CCodeIdentifier ("_res_"));
2240                 block.add_statement (new CCodeExpressionStatement (async_result_free));
2241
2242                 var datafree = new CCodeFunctionCall (new CCodeIdentifier ("g_slice_free"));
2243                 datafree.add_argument (new CCodeIdentifier (dataname));
2244                 datafree.add_argument (new CCodeIdentifier ("_data_"));
2245                 block.add_statement (new CCodeExpressionStatement (datafree));
2246
2247                 var pendingfree = new CCodeFunctionCall (new CCodeIdentifier ("dbus_pending_call_unref"));
2248                 pendingfree.add_argument (new CCodeIdentifier ("pending"));
2249                 block.add_statement (new CCodeExpressionStatement (pendingfree));
2250
2251                 cfile.add_type_member_declaration (function.copy ());
2252                 function.block = block;
2253                 cfile.add_function (function);
2254
2255
2256                 return proxy_name;
2257         }
2258
2259         CCodeConstant get_reply_signature (Method m) {
2260                 // expected type signature for output parameters
2261                 string type_signature = "";
2262
2263                 foreach (FormalParameter param in m.get_parameters ()) {
2264                         if (param.direction == ParameterDirection.OUT) {
2265                                 type_signature += get_type_signature (param.variable_type);
2266                         }
2267                 }
2268
2269                 if (!(m.return_type is VoidType)) {
2270                         type_signature += get_type_signature (m.return_type);
2271                 }
2272
2273                 return (new CCodeConstant ("\"%s\"".printf (type_signature)));
2274         }
2275
2276         void check_reply_signature (Method m, CCodeBlock block) {
2277                 var reply_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2278                 reply_unref.add_argument (new CCodeIdentifier ("_reply"));
2279
2280                 var message_signature = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_get_signature"));
2281                 message_signature.add_argument (new CCodeIdentifier ("_reply"));
2282
2283                 var signature_check = new CCodeFunctionCall (new CCodeIdentifier ("strcmp"));
2284                 signature_check.add_argument (message_signature);
2285                 signature_check.add_argument (get_reply_signature (m));
2286
2287                 var signature_error_block = new CCodeBlock ();
2288                 var set_error_call = new CCodeFunctionCall (new CCodeIdentifier ("g_set_error"));
2289                 set_error_call.add_argument (new CCodeIdentifier ("error"));
2290                 set_error_call.add_argument (new CCodeIdentifier ("DBUS_GERROR"));
2291                 set_error_call.add_argument (new CCodeIdentifier ("DBUS_GERROR_INVALID_SIGNATURE"));
2292                 set_error_call.add_argument (new CCodeConstant ("\"Invalid signature, expected \\\"%s\\\", got \\\"%s\\\"\""));
2293                 set_error_call.add_argument (get_reply_signature (m));
2294                 set_error_call.add_argument (message_signature);
2295                 signature_error_block.add_statement (new CCodeExpressionStatement (set_error_call));
2296                 signature_error_block.add_statement (new CCodeExpressionStatement (reply_unref));
2297                 signature_error_block.add_statement (new CCodeReturnStatement (default_value_for_type (m.return_type, false)));
2298
2299                 block.add_statement (new CCodeIfStatement (signature_check, signature_error_block));
2300         }
2301
2302         string generate_finish_dbus_proxy_method (Interface main_iface, Interface iface, Method m) {
2303                 string proxy_name = "%sdbus_proxy_%s_finish".printf (main_iface.get_lower_case_cprefix (), m.name);
2304
2305                 string dbus_iface_name = get_dbus_name (iface);
2306
2307                 CCodeDeclaration cdecl;
2308
2309                 var function = new CCodeFunction (proxy_name);
2310                 function.modifiers = CCodeModifiers.STATIC;
2311
2312                 var cparam_map = new HashMap<int,CCodeFormalParameter> (direct_hash, direct_equal);
2313
2314                 cparam_map.set (get_param_pos (0.1), new CCodeFormalParameter ("_res_", "GAsyncResult*"));
2315
2316                 generate_cparameters (m, cfile, cparam_map, function, null, null, null, 2);
2317
2318                 var block = new CCodeBlock ();
2319                 var prefragment = new CCodeFragment ();
2320                 var postfragment = new CCodeFragment ();
2321
2322                 string dataname = "%sDBusProxy%sData".printf (iface.get_cname (), Symbol.lower_case_to_camel_case (m.name));
2323                 cdecl = new CCodeDeclaration (dataname + "*");
2324                 cdecl.add_declarator (new CCodeVariableDeclarator ("_data_"));
2325                 block.add_statement (cdecl);
2326
2327                 cdecl = new CCodeDeclaration ("DBusError");
2328                 cdecl.add_declarator (new CCodeVariableDeclarator ("_dbus_error"));
2329                 block.add_statement (cdecl);
2330
2331                 var dbus_error = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_dbus_error"));
2332
2333                 cdecl = new CCodeDeclaration ("DBusMessage");
2334                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_reply"));
2335                 block.add_statement (cdecl);
2336
2337                 cdecl = new CCodeDeclaration ("DBusMessageIter");
2338                 cdecl.add_declarator (new CCodeVariableDeclarator ("_iter"));
2339                 block.add_statement (cdecl);
2340
2341                 var get_source_tag = new CCodeFunctionCall (new CCodeIdentifier ("g_simple_async_result_get_source_tag"));
2342                 get_source_tag.add_argument (new CCodeCastExpression (new CCodeIdentifier ("_res_"), "GSimpleAsyncResult *"));
2343                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_data_"), get_source_tag)));
2344
2345                 var dbus_error_init = new CCodeFunctionCall (new CCodeIdentifier ("dbus_error_init"));
2346                 dbus_error_init.add_argument (dbus_error);
2347                 block.add_statement (new CCodeExpressionStatement (dbus_error_init));
2348
2349                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_pending_call_steal_reply"));
2350                 ccall.add_argument (new CCodeMemberAccess.pointer (new CCodeIdentifier ("_data_"), "pending"));
2351                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_reply"), ccall)));
2352
2353                 var set_error_from_message = new CCodeFunctionCall (new CCodeIdentifier ("dbus_set_error_from_message"));
2354                 set_error_from_message.add_argument (dbus_error);
2355                 set_error_from_message.add_argument (new CCodeIdentifier ("_reply"));
2356                 block.add_statement (new CCodeExpressionStatement (set_error_from_message));
2357
2358                 check_error_reply (m, block);
2359                 check_reply_signature (m, block);
2360
2361                 generate_marshalling (m, dbus_iface_name, prefragment, postfragment);
2362
2363                 block.add_statement (postfragment);
2364
2365                 var reply_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2366                 reply_unref.add_argument (new CCodeIdentifier ("_reply"));
2367                 block.add_statement (new CCodeExpressionStatement (reply_unref));
2368
2369                 if (!(m.return_type is VoidType || m.return_type.is_real_non_null_struct_type ())) {
2370                         block.add_statement (new CCodeReturnStatement (new CCodeIdentifier ("_result")));
2371                 }
2372
2373                 cfile.add_type_member_declaration (function.copy ());
2374                 function.block = block;
2375                 cfile.add_function (function);
2376
2377                 return proxy_name;
2378         }
2379
2380         void check_property_error_reply (PropertyAccessor acc, CCodeBlock block) {
2381                 var dbus_error = new CCodeIdentifier ("_dbus_error");
2382                 var dbus_error_ptr = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, dbus_error);
2383
2384                 var error_block = new CCodeBlock ();
2385
2386                 var ccritical = new CCodeFunctionCall (new CCodeIdentifier ("g_critical"));
2387                 ccritical.add_argument (new CCodeConstant ("\"file %s: line %d: uncaught error: %s (%s)\""));
2388                 ccritical.add_argument (new CCodeConstant ("__FILE__"));
2389                 ccritical.add_argument (new CCodeConstant ("__LINE__"));
2390                 ccritical.add_argument (new CCodeMemberAccess (dbus_error, "message"));
2391                 ccritical.add_argument (new CCodeMemberAccess (dbus_error, "name"));
2392
2393                 error_block.add_statement (new CCodeExpressionStatement (ccritical));
2394
2395                 var dbus_error_free = new CCodeFunctionCall (new CCodeIdentifier ("dbus_error_free"));
2396                 dbus_error_free.add_argument (dbus_error_ptr);
2397                 error_block.add_statement (new CCodeExpressionStatement (dbus_error_free));
2398
2399                 if (acc.readable && !acc.value_type.is_real_non_null_struct_type ()) {
2400                         error_block.add_statement (new CCodeReturnStatement (default_value_for_type (acc.value_type, false)));
2401                 } else {
2402                         error_block.add_statement (new CCodeReturnStatement ());
2403                 }
2404
2405                 var dbus_error_is_set = new CCodeFunctionCall (new CCodeIdentifier ("dbus_error_is_set"));
2406                 dbus_error_is_set.add_argument (dbus_error_ptr);
2407                 block.add_statement (new CCodeIfStatement (dbus_error_is_set, error_block));
2408         }
2409
2410         CCodeConstant get_property_reply_signature (PropertyAccessor acc) {
2411                 if (acc.readable) {
2412                         return new CCodeConstant ("\"v\"");
2413                 } else {
2414                         return new CCodeConstant ("\"\"");
2415                 }
2416         }
2417
2418         CCodeConstant get_property_inner_signature (PropertyAccessor acc) {
2419                 return new CCodeConstant ("\"%s\"".printf (get_type_signature (acc.value_type)));
2420         }
2421
2422         void check_property_reply_signature (PropertyAccessor acc, CCodeBlock block) {
2423                 var reply_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2424                 reply_unref.add_argument (new CCodeIdentifier ("_reply"));
2425
2426                 var message_signature = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_get_signature"));
2427                 message_signature.add_argument (new CCodeIdentifier ("_reply"));
2428
2429                 var signature_check = new CCodeFunctionCall (new CCodeIdentifier ("strcmp"));
2430                 signature_check.add_argument (message_signature);
2431                 signature_check.add_argument (get_property_reply_signature (acc));
2432
2433                 var signature_error_block = new CCodeBlock ();
2434
2435                 var ccritical = new CCodeFunctionCall (new CCodeIdentifier ("g_critical"));
2436                 ccritical.add_argument (new CCodeConstant ("\"file %s: line %d: Invalid signature, expected \\\"%s\\\", got \\\"%s\\\"\""));
2437                 ccritical.add_argument (new CCodeConstant ("__FILE__"));
2438                 ccritical.add_argument (new CCodeConstant ("__LINE__"));
2439                 ccritical.add_argument (get_property_reply_signature (acc));
2440                 ccritical.add_argument (message_signature);
2441
2442                 signature_error_block.add_statement (new CCodeExpressionStatement (ccritical));
2443                 signature_error_block.add_statement (new CCodeExpressionStatement (reply_unref));
2444
2445                 if (acc.readable && !acc.value_type.is_real_non_null_struct_type ()) {
2446                         signature_error_block.add_statement (new CCodeReturnStatement (default_value_for_type (acc.value_type, false)));
2447                 } else {
2448                         signature_error_block.add_statement (new CCodeReturnStatement ());
2449                 }
2450
2451                 block.add_statement (new CCodeIfStatement (signature_check, signature_error_block));
2452         }
2453
2454         void check_property_inner_signature (PropertyAccessor acc, CCodeFragment fragment) {
2455                 var reply_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2456                 reply_unref.add_argument (new CCodeIdentifier ("_reply"));
2457
2458                 var iter_signature = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_get_signature"));
2459                 iter_signature.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_subiter")));
2460
2461                 var signature_check = new CCodeFunctionCall (new CCodeIdentifier ("strcmp"));
2462                 signature_check.add_argument (iter_signature);
2463                 signature_check.add_argument (get_property_inner_signature (acc));
2464
2465                 var signature_error_block = new CCodeBlock ();
2466
2467                 var ccritical = new CCodeFunctionCall (new CCodeIdentifier ("g_critical"));
2468                 ccritical.add_argument (new CCodeConstant ("\"file %s: line %d: Invalid signature, expected \\\"%s\\\", got \\\"%s\\\"\""));
2469                 ccritical.add_argument (new CCodeConstant ("__FILE__"));
2470                 ccritical.add_argument (new CCodeConstant ("__LINE__"));
2471                 ccritical.add_argument (get_property_inner_signature (acc));
2472                 ccritical.add_argument (iter_signature);
2473
2474                 signature_error_block.add_statement (new CCodeExpressionStatement (ccritical));
2475                 signature_error_block.add_statement (new CCodeExpressionStatement (reply_unref));
2476
2477                 if (!acc.value_type.is_real_non_null_struct_type ()) {
2478                         signature_error_block.add_statement (new CCodeReturnStatement (default_value_for_type (acc.value_type, false)));
2479                 } else {
2480                         signature_error_block.add_statement (new CCodeReturnStatement ());
2481                 }
2482
2483                 fragment.append (new CCodeIfStatement (signature_check, signature_error_block));
2484         }
2485
2486         string generate_dbus_proxy_property_get (Interface main_iface, Interface iface, Property prop) {
2487                 string proxy_name = "%sdbus_proxy_get_%s".printf (main_iface.get_lower_case_cprefix (), prop.name);
2488
2489                 string dbus_iface_name = get_dbus_name (iface);
2490
2491                 var owned_type = prop.get_accessor.value_type.copy ();
2492                 owned_type.value_owned = true;
2493                 if (owned_type.is_disposable () && !prop.get_accessor.value_type.value_owned) {
2494                         Report.error (prop.get_accessor.value_type.source_reference, "Properties used in D-Bus clients require owned get accessor");
2495                 }
2496
2497                 var array_type = prop.get_accessor.value_type as ArrayType;
2498
2499                 CCodeDeclaration cdecl;
2500
2501                 var function = new CCodeFunction (proxy_name);
2502                 function.modifiers = CCodeModifiers.STATIC;
2503
2504                 function.add_parameter (new CCodeFormalParameter ("self", "%s*".printf (iface.get_cname ())));
2505
2506                 if (prop.property_type.is_real_non_null_struct_type ()) {
2507                         function.add_parameter (new CCodeFormalParameter ("result", "%s*".printf (prop.get_accessor.value_type.get_cname ())));
2508                 } else {
2509                         if (array_type != null) {
2510                                 for (int dim = 1; dim <= array_type.rank; dim++) {
2511                                         function.add_parameter (new CCodeFormalParameter ("result_length%d".printf (dim), "int*"));
2512                                 }
2513                         }
2514
2515                         function.return_type = prop.get_accessor.value_type.get_cname ();
2516                 }
2517
2518                 var block = new CCodeBlock ();
2519                 var prefragment = new CCodeFragment ();
2520                 var postfragment = new CCodeFragment ();
2521
2522                 var dispose_return_block = new CCodeBlock ();
2523                 if (prop.property_type.is_real_non_null_struct_type ()) {
2524                         dispose_return_block.add_statement (new CCodeReturnStatement ());
2525                 } else {
2526                         dispose_return_block.add_statement (new CCodeReturnStatement (default_value_for_type (prop.property_type, false)));
2527                 }
2528                 block.add_statement (new CCodeIfStatement (new CCodeMemberAccess.pointer (new CCodeCastExpression (new CCodeIdentifier ("self"), iface.get_cname () + "DBusProxy*"), "disposed"), dispose_return_block));
2529
2530                 cdecl = new CCodeDeclaration ("DBusError");
2531                 cdecl.add_declarator (new CCodeVariableDeclarator ("_dbus_error"));
2532                 block.add_statement (cdecl);
2533
2534                 var dbus_error = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_dbus_error"));
2535
2536                 cdecl = new CCodeDeclaration ("DBusGConnection");
2537                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_connection"));
2538                 block.add_statement (cdecl);
2539
2540                 cdecl = new CCodeDeclaration ("DBusMessage");
2541                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_message"));
2542                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_reply"));
2543                 block.add_statement (cdecl);
2544
2545                 cdecl = new CCodeDeclaration ("DBusMessageIter");
2546                 cdecl.add_declarator (new CCodeVariableDeclarator ("_iter"));
2547                 cdecl.add_declarator (new CCodeVariableDeclarator ("_subiter"));
2548                 block.add_statement (cdecl);
2549
2550                 block.add_statement (prefragment);
2551
2552                 var destination = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_get_bus_name"));
2553                 destination.add_argument (new CCodeCastExpression (new CCodeIdentifier ("self"), "DBusGProxy*"));
2554                 var path = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_get_path"));
2555                 path.add_argument (new CCodeCastExpression (new CCodeIdentifier ("self"), "DBusGProxy*"));
2556
2557                 var msgcall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_new_method_call"));
2558                 msgcall.add_argument (destination);
2559                 msgcall.add_argument (path);
2560                 msgcall.add_argument (new CCodeConstant ("\"org.freedesktop.DBus.Properties\""));
2561                 msgcall.add_argument (new CCodeConstant ("\"Get\""));
2562                 prefragment.append (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_message"), msgcall)));
2563
2564                 var iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_init_append"));
2565                 iter_call.add_argument (new CCodeIdentifier ("_message"));
2566                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_iter")));
2567                 prefragment.append (new CCodeExpressionStatement (iter_call));
2568
2569                 iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_init"));
2570                 iter_call.add_argument (new CCodeIdentifier ("_reply"));
2571                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_iter")));
2572                 postfragment.append (new CCodeExpressionStatement (iter_call));
2573
2574                 // interface name
2575                 write_expression (prefragment, string_type, new CCodeIdentifier ("_iter"), new CCodeConstant ("\"%s\"".printf (dbus_iface_name)));
2576                 // property name
2577                 write_expression (prefragment, string_type, new CCodeIdentifier ("_iter"), new CCodeConstant ("\"%s\"".printf (get_dbus_name_for_member (prop))));
2578
2579                 iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_recurse"));
2580                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_iter")));
2581                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_subiter")));
2582                 postfragment.append (new CCodeExpressionStatement (iter_call));
2583
2584                 check_property_inner_signature (prop.get_accessor, postfragment);
2585
2586                 if (prop.property_type.is_real_non_null_struct_type ()) {
2587                         var target = new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("result"));
2588                         var expr = read_expression (postfragment, prop.get_accessor.value_type, new CCodeIdentifier ("_subiter"), target);
2589                         postfragment.append (new CCodeExpressionStatement (new CCodeAssignment (target, expr)));
2590                 } else {
2591                         cdecl = new CCodeDeclaration (prop.get_accessor.value_type.get_cname ());
2592                         cdecl.add_declarator (new CCodeVariableDeclarator ("_result"));
2593                         postfragment.append (cdecl);
2594
2595                         if (array_type != null) {
2596                                 for (int dim = 1; dim <= array_type.rank; dim++) {
2597                                         cdecl = new CCodeDeclaration ("int");
2598                                         cdecl.add_declarator (new CCodeVariableDeclarator ("_result_length%d".printf (dim), new CCodeConstant ("0")));
2599                                         postfragment.append (cdecl);
2600                                 }
2601                         }
2602
2603                         var target = new CCodeIdentifier ("_result");
2604                         var expr = read_expression (postfragment, prop.get_accessor.value_type, new CCodeIdentifier ("_subiter"), target);
2605                         postfragment.append (new CCodeExpressionStatement (new CCodeAssignment (target, expr)));
2606
2607                         if (array_type != null) {
2608                                 for (int dim = 1; dim <= array_type.rank; dim++) {
2609                                         // TODO check that parameter is not NULL (out parameters are optional)
2610                                         postfragment.append (new CCodeExpressionStatement (new CCodeAssignment (new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("result_length%d".printf (dim))), new CCodeIdentifier ("_result_length%d".printf (dim)))));
2611                                 }
2612                         }
2613                 }
2614
2615                 var gconnection = new CCodeFunctionCall (new CCodeIdentifier ("g_object_get"));
2616                 gconnection.add_argument (new CCodeIdentifier ("self"));
2617                 gconnection.add_argument (new CCodeConstant ("\"connection\""));
2618                 gconnection.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_connection")));
2619                 gconnection.add_argument (new CCodeConstant ("NULL"));
2620                 block.add_statement (new CCodeExpressionStatement (gconnection));
2621
2622                 var dbus_error_init = new CCodeFunctionCall (new CCodeIdentifier ("dbus_error_init"));
2623                 dbus_error_init.add_argument (dbus_error);
2624                 block.add_statement (new CCodeExpressionStatement (dbus_error_init));
2625
2626                 var connection = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_get_connection"));
2627                 connection.add_argument (new CCodeIdentifier ("_connection"));
2628
2629                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_connection_send_with_reply_and_block"));
2630                 ccall.add_argument (connection);
2631                 ccall.add_argument (new CCodeIdentifier ("_message"));
2632                 ccall.add_argument (get_dbus_timeout (prop));
2633                 ccall.add_argument (dbus_error);
2634                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_reply"), ccall)));
2635
2636                 var conn_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_unref"));
2637                 conn_unref.add_argument (new CCodeIdentifier ("_connection"));
2638                 block.add_statement (new CCodeExpressionStatement (conn_unref));
2639
2640                 var message_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2641                 message_unref.add_argument (new CCodeIdentifier ("_message"));
2642                 block.add_statement (new CCodeExpressionStatement (message_unref));
2643
2644                 check_property_error_reply (prop.get_accessor, block);
2645                 check_property_reply_signature (prop.get_accessor, block);
2646
2647                 block.add_statement (postfragment);
2648
2649                 var reply_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2650                 reply_unref.add_argument (new CCodeIdentifier ("_reply"));
2651                 block.add_statement (new CCodeExpressionStatement (reply_unref));
2652
2653                 if (prop.property_type.is_real_non_null_struct_type ()) {
2654                         block.add_statement (new CCodeReturnStatement ());
2655                 } else {
2656                         block.add_statement (new CCodeReturnStatement (new CCodeIdentifier ("_result")));
2657                 }
2658
2659                 cfile.add_type_member_declaration (function.copy ());
2660                 function.block = block;
2661                 cfile.add_function (function);
2662
2663                 return proxy_name;
2664         }
2665
2666         string generate_dbus_proxy_property_set (Interface main_iface, Interface iface, Property prop) {
2667                 string proxy_name = "%sdbus_proxy_set_%s".printf (main_iface.get_lower_case_cprefix (), prop.name);
2668
2669                 string dbus_iface_name = get_dbus_name (iface);
2670
2671                 var array_type = prop.set_accessor.value_type as ArrayType;
2672
2673                 CCodeDeclaration cdecl;
2674
2675                 var function = new CCodeFunction (proxy_name);
2676                 function.modifiers = CCodeModifiers.STATIC;
2677
2678                 function.add_parameter (new CCodeFormalParameter ("self", "%s*".printf (iface.get_cname ())));
2679
2680                 if (prop.property_type.is_real_non_null_struct_type ()) {
2681                         function.add_parameter (new CCodeFormalParameter ("value", "%s*".printf (prop.set_accessor.value_type.get_cname ())));
2682                 } else {
2683                         function.add_parameter (new CCodeFormalParameter ("value", prop.set_accessor.value_type.get_cname ()));
2684
2685                         if (array_type != null) {
2686                                 for (int dim = 1; dim <= array_type.rank; dim++) {
2687                                         function.add_parameter (new CCodeFormalParameter ("value_length%d".printf (dim), "int"));
2688                                 }
2689                         }
2690                 }
2691
2692                 var block = new CCodeBlock ();
2693                 var prefragment = new CCodeFragment ();
2694                 var postfragment = new CCodeFragment ();
2695
2696                 var dispose_return_block = new CCodeBlock ();
2697                 dispose_return_block.add_statement (new CCodeReturnStatement ());
2698                 block.add_statement (new CCodeIfStatement (new CCodeMemberAccess.pointer (new CCodeCastExpression (new CCodeIdentifier ("self"), iface.get_cname () + "DBusProxy*"), "disposed"), dispose_return_block));
2699
2700                 cdecl = new CCodeDeclaration ("DBusError");
2701                 cdecl.add_declarator (new CCodeVariableDeclarator ("_dbus_error"));
2702                 block.add_statement (cdecl);
2703
2704                 var dbus_error = new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_dbus_error"));
2705
2706                 cdecl = new CCodeDeclaration ("DBusGConnection");
2707                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_connection"));
2708                 block.add_statement (cdecl);
2709
2710                 cdecl = new CCodeDeclaration ("DBusMessage");
2711                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_message"));
2712                 cdecl.add_declarator (new CCodeVariableDeclarator ("*_reply"));
2713                 block.add_statement (cdecl);
2714
2715                 cdecl = new CCodeDeclaration ("DBusMessageIter");
2716                 cdecl.add_declarator (new CCodeVariableDeclarator ("_iter"));
2717                 cdecl.add_declarator (new CCodeVariableDeclarator ("_subiter"));
2718                 block.add_statement (cdecl);
2719
2720                 block.add_statement (prefragment);
2721
2722                 var destination = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_get_bus_name"));
2723                 destination.add_argument (new CCodeCastExpression (new CCodeIdentifier ("self"), "DBusGProxy*"));
2724                 var path = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_proxy_get_path"));
2725                 path.add_argument (new CCodeCastExpression (new CCodeIdentifier ("self"), "DBusGProxy*"));
2726
2727                 var msgcall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_new_method_call"));
2728                 msgcall.add_argument (destination);
2729                 msgcall.add_argument (path);
2730                 msgcall.add_argument (new CCodeConstant ("\"org.freedesktop.DBus.Properties\""));
2731                 msgcall.add_argument (new CCodeConstant ("\"Set\""));
2732                 prefragment.append (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_message"), msgcall)));
2733
2734                 var iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_init_append"));
2735                 iter_call.add_argument (new CCodeIdentifier ("_message"));
2736                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_iter")));
2737                 prefragment.append (new CCodeExpressionStatement (iter_call));
2738
2739                 iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_init"));
2740                 iter_call.add_argument (new CCodeIdentifier ("_reply"));
2741                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_iter")));
2742                 postfragment.append (new CCodeExpressionStatement (iter_call));
2743
2744                 // interface name
2745                 write_expression (prefragment, string_type, new CCodeIdentifier ("_iter"), new CCodeConstant ("\"%s\"".printf (dbus_iface_name)));
2746                 // property name
2747                 write_expression (prefragment, string_type, new CCodeIdentifier ("_iter"), new CCodeConstant ("\"%s\"".printf (get_dbus_name_for_member (prop))));
2748
2749                 // property value (as variant)
2750                 iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_open_container"));
2751                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_iter")));
2752                 iter_call.add_argument (new CCodeIdentifier ("DBUS_TYPE_VARIANT"));
2753                 iter_call.add_argument (new CCodeConstant ("\"%s\"".printf (get_type_signature (prop.property_type))));
2754                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_subiter")));
2755                 prefragment.append (new CCodeExpressionStatement (iter_call));
2756
2757                 if (prop.property_type.is_real_non_null_struct_type ()) {
2758                         write_expression (prefragment, prop.set_accessor.value_type, new CCodeIdentifier ("_subiter"), new CCodeUnaryExpression (CCodeUnaryOperator.POINTER_INDIRECTION, new CCodeIdentifier ("value")));
2759                 } else {
2760                         write_expression (prefragment, prop.set_accessor.value_type, new CCodeIdentifier ("_subiter"), new CCodeIdentifier ("value"));
2761                 }
2762
2763                 iter_call = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_iter_close_container"));
2764                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_iter")));
2765                 iter_call.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_subiter")));
2766                 prefragment.append (new CCodeExpressionStatement (iter_call));
2767
2768                 var gconnection = new CCodeFunctionCall (new CCodeIdentifier ("g_object_get"));
2769                 gconnection.add_argument (new CCodeIdentifier ("self"));
2770                 gconnection.add_argument (new CCodeConstant ("\"connection\""));
2771                 gconnection.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier ("_connection")));
2772                 gconnection.add_argument (new CCodeConstant ("NULL"));
2773                 block.add_statement (new CCodeExpressionStatement (gconnection));
2774
2775                 var dbus_error_init = new CCodeFunctionCall (new CCodeIdentifier ("dbus_error_init"));
2776                 dbus_error_init.add_argument (dbus_error);
2777                 block.add_statement (new CCodeExpressionStatement (dbus_error_init));
2778
2779                 var connection = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_get_connection"));
2780                 connection.add_argument (new CCodeIdentifier ("_connection"));
2781
2782                 var ccall = new CCodeFunctionCall (new CCodeIdentifier ("dbus_connection_send_with_reply_and_block"));
2783                 ccall.add_argument (connection);
2784                 ccall.add_argument (new CCodeIdentifier ("_message"));
2785                 ccall.add_argument (get_dbus_timeout (prop));
2786                 ccall.add_argument (dbus_error);
2787                 block.add_statement (new CCodeExpressionStatement (new CCodeAssignment (new CCodeIdentifier ("_reply"), ccall)));
2788
2789                 var conn_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_g_connection_unref"));
2790                 conn_unref.add_argument (new CCodeIdentifier ("_connection"));
2791                 block.add_statement (new CCodeExpressionStatement (conn_unref));
2792
2793                 var message_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2794                 message_unref.add_argument (new CCodeIdentifier ("_message"));
2795                 block.add_statement (new CCodeExpressionStatement (message_unref));
2796
2797                 check_property_error_reply (prop.set_accessor, block);
2798                 check_property_reply_signature (prop.set_accessor, block);
2799
2800                 block.add_statement (postfragment);
2801
2802                 var reply_unref = new CCodeFunctionCall (new CCodeIdentifier ("dbus_message_unref"));
2803                 reply_unref.add_argument (new CCodeIdentifier ("_reply"));
2804                 block.add_statement (new CCodeExpressionStatement (reply_unref));
2805
2806                 cfile.add_type_member_declaration (function.copy ());
2807                 function.block = block;
2808                 cfile.add_function (function);
2809
2810                 return proxy_name;
2811         }
2812 }