forb-idl/forb-idl-c-skels.c

   1 #include "config.h"
   2
   3 #include "forb-idl-c-backend.h"
   4
   5 #include <string.h>
   6
   7 typedef struct {
   8         OIDL_C_Info *ci;
   9         GSList      *oplist;
  10         int          curlevel;
  11 } CBESkelInterfaceTraverseInfo;
  12
  13 typedef struct {
  14         char     *iface_id;
  15         char     *opname;
  16         IDL_tree  op;
  17         int       idx;
  18 } CBESkelOpInfo;
  19
  20 static void cbe_skel_do_interface(IDL_tree tree, OIDL_Run_Info *rinfo, OIDL_C_Info *ci);
  21
  22 static void
  23 ck_output_poastuff(IDL_tree tree, OIDL_Run_Info *rinfo, OIDL_C_Info *ci)
  24 {
  25   if( !tree || (tree->declspec & IDLF_DECLSPEC_PIDL)!=0 )
  26     return;
  27
  28   switch(IDL_NODE_TYPE(tree)) {
  29   case IDLN_MODULE:
  30     ck_output_poastuff(IDL_MODULE(tree).definition_list, rinfo, ci);
  31     break;
  32   case IDLN_LIST:
  33     {
  34       IDL_tree sub;
  35       for(sub = tree; sub; sub = IDL_LIST(sub).next) {
  36         ck_output_poastuff(IDL_LIST(sub).data, rinfo, ci);
  37       }
  38     }
  39     break;
  40   case IDLN_INTERFACE:
  41     cbe_skel_do_interface(tree, rinfo, ci);
  42     break;
  43   default:
  44     break;
  45   }
  46 }
  47
  48 /* static gint */
  49 /* cbe_skel_compare_op_dcls(CBESkelOpInfo *op1, CBESkelOpInfo *op2) */
  50 /* { */
  51 /*   return strcmp(op1->opname, op2->opname); */
  52 /* } */
  53
  54 /* static void */
  55 /* cbe_skel_free_op_info(CBESkelOpInfo *op) */
  56 /* { */
  57 /*   g_free(op->opname); */
  58 /*   g_free(op->iface_id); */
  59 /*   g_free(op); */
  60 /* } */
  61
  62 /* static void */
  63 /* cbe_skel_interface_add_relayer (IDL_tree intf, CBESkelInterfaceTraverseInfo *iti) */
  64 /* { */
  65 /*   CBESkelOpInfo *newopi; */
  66 /*   IDL_tree curitem, curdcl, curattr, curattrdcl; */
  67 /*   char *iface_id; */
  68 /*   int   idx = 0; */
  69
  70 /*   iface_id = */
  71 /*     IDL_ns_ident_to_qstring(IDL_IDENT_TO_NS(IDL_INTERFACE(intf).ident), */
  72 /*                          "_", 0); */
  73
  74 /*   for(curitem = IDL_INTERFACE(intf).body; curitem; */
  75 /*       curitem = IDL_LIST(curitem).next) { */
  76 /*     curdcl = IDL_LIST(curitem).data; */
  77
  78 /*     switch(IDL_NODE_TYPE(curdcl)) { */
  79 /*     case IDLN_OP_DCL: */
  80 /*       newopi = g_new0(CBESkelOpInfo, 1); */
  81 /*       newopi->iface_id = g_strdup(iface_id); */
  82 /*       newopi->opname = g_strdup(IDL_IDENT(IDL_OP_DCL(curdcl).ident).str); */
  83 /*       newopi->idx = idx++; */
  84 /*       iti->oplist = g_slist_insert_sorted(iti->oplist, newopi, */
  85 /*                                        (GCompareFunc)cbe_skel_compare_op_dcls); */
  86 /*       break; */
  87 /*     case IDLN_ATTR_DCL: */
  88 /*       for(curattr = IDL_ATTR_DCL(curdcl).simple_declarations; */
  89 /*        curattr; curattr = IDL_LIST(curattr).next) { */
  90 /*      curattrdcl = IDL_LIST(curattr).data; */
  91
  92 /*      newopi = g_new0(CBESkelOpInfo, 1); */
  93 /*      newopi->iface_id = g_strdup(iface_id); */
  94 /*      newopi->opname = g_strdup_printf("_get_%s", IDL_IDENT(curattrdcl).str); */
  95 /*      newopi->idx = idx++; */
  96 /*      iti->oplist = g_slist_insert_sorted(iti->oplist, newopi, */
  97 /*                                          (GCompareFunc)cbe_skel_compare_op_dcls); */
  98 /*      if(!IDL_ATTR_DCL(curdcl).f_readonly) { */
  99 /*        newopi = g_new0(CBESkelOpInfo, 1); */
 100 /*        newopi->iface_id = g_strdup(iface_id); */
 101 /*        newopi->opname = g_strdup_printf("_set_%s", IDL_IDENT(curattrdcl).str); */
 102 /*        newopi->idx = idx++; */
 103 /*        iti->oplist = g_slist_insert_sorted(iti->oplist, newopi, */
 104 /*                                            (GCompareFunc)cbe_skel_compare_op_dcls); */
 105 /*      } */
 106 /*       } */
 107 /*       break; */
 108 /*     default: */
 109 /*       break; */
 110 /*     } */
 111 /*   } */
 112
 113 /*   g_free(iface_id); */
 114 /* } */
 115
 116 /* static void */
 117 /* cbe_skel_interface_print_relayers(const CBESkelInterfaceTraverseInfo *iti) */
 118 /* { */
 119 /*   CBESkelInterfaceTraverseInfo subiti = *iti; */
 120 /*   GSList *curnode; */
 121 /*   CBESkelOpInfo *opi; */
 122 /*   char curchar; */
 123
 124 /*   curnode = iti->oplist; */
 125 /*   subiti.curlevel = iti->curlevel+1; */
 126 /*   fprintf(iti->ci->fh, "switch(opname[%d]) {\n", iti->curlevel); */
 127 /*   while(curnode) { */
 128 /*     opi = (CBESkelOpInfo *)curnode->data; */
 129 /*     if(iti->curlevel > strlen(opi->opname)) { */
 130 /*       curnode = g_slist_next(curnode); */
 131 /*       continue; */
 132 /*     } */
 133 /*     curchar = opi->opname[iti->curlevel]; */
 134 /*     if(curchar) */
 135 /*       fprintf(iti->ci->fh, "case '%c':\n", curchar); */
 136 /*     else */
 137 /*       fprintf(iti->ci->fh, "case '\\0':\n"); */
 138 /*     subiti.oplist = NULL; */
 139 /*     while(curnode && ((CBESkelOpInfo *)curnode->data)->opname[iti->curlevel] */
 140 /*        == curchar) { */
 141 /*       subiti.oplist = g_slist_append(subiti.oplist, curnode->data); */
 142 /*       curnode = g_slist_next(curnode); */
 143 /*     } */
 144
 145 /*     if(g_slist_length(subiti.oplist) > 1) { */
 146 /*       if(curchar) */
 147 /*      cbe_skel_interface_print_relayers(&subiti); */
 148 /*       else */
 149 /*      g_error("two ops with same name!!!!"); */
 150 /*     } else { */
 151 /*       if(strlen(opi->opname + iti->curlevel)) */
 152 /*      fprintf(iti->ci->fh, "if(strcmp((opname + %d), \"%s\")) break;\n", */
 153 /*              iti->curlevel + 1, opi->opname + iti->curlevel+1); */
 154 /*       fprintf(iti->ci->fh, "*impl = (gpointer)servant->vepv->%s_epv->%s;\n", */
 155 /*            opi->iface_id, opi->opname); */
 156 /*       fprintf(iti->ci->fh, "{Forb_IInterface *volatile _t_=&%s__iinterface;*m_data = (gpointer)&_t_->methods._buffer [%d];}\n", */
 157 /*            opi->iface_id, opi->idx); */
 158 /*       fprintf(iti->ci->fh, "return (ForbSmallSkeleton)_FORB_skel_small_%s_%s;\n", */
 159 /*            opi->iface_id, opi->opname); */
 160 /*     } */
 161 /*     fprintf(iti->ci->fh, "break;\n"); */
 162 /*     g_slist_free(subiti.oplist); */
 163 /*   } */
 164 /*   fprintf(iti->ci->fh, "default: break; \n}\n"); */
 165 /* } */
 166
 167 /* static void */
 168 /* cbe_skel_interface_print_relayer(IDL_tree tree, OIDL_Run_Info *rinfo, OIDL_C_Info *ci) */
 169 /* { */
 170 /*   char *id; */
 171 /*   CBESkelInterfaceTraverseInfo iti; */
 172
 173 /*   id = IDL_ns_ident_to_qstring(IDL_IDENT_TO_NS(IDL_INTERFACE(tree).ident), "_", 0); */
 174 /*   fprintf(ci->fh, "static ForbSmallSkeleton get_skel_small_%s(POA_%s *servant,\nconst char *opname," */
 175 /*        "gpointer *m_data, gpointer *impl)\n{\n", id, id); */
 176
 177 /*   iti.ci = ci; */
 178 /*   iti.oplist = NULL; */
 179 /*   iti.curlevel = 0; */
 180
 181 /*   IDL_tree_traverse_parents(tree, */
 182 /*                          (GFunc)cbe_skel_interface_add_relayer, &iti); */
 183
 184 /*   cbe_skel_interface_print_relayers(&iti); */
 185
 186 /*   g_slist_foreach(iti.oplist, (GFunc)cbe_skel_free_op_info, NULL); */
 187 /*   g_slist_free(iti.oplist); */
 188
 189 /*   fprintf(ci->fh, "return NULL;\n"); */
 190 /*   fprintf(ci->fh, "}\n\n"); */
 191
 192 /*   g_free(id); */
 193 /* } */
 194
 195 typedef struct {
 196         OIDL_C_Info *ci;
 197         const char  *for_id;
 198 } CBESkelVEPVMapTraverseInfo;
 199
 200 /* static void */
 201 /* cbe_skel_interface_print_vepvmap_offsets (IDL_tree node, CBESkelVEPVMapTraverseInfo *ti) */
 202 /* { */
 203 /*      char *id; */
 204 /*      id = IDL_ns_ident_to_qstring (IDL_IDENT_TO_NS (IDL_INTERFACE (node).ident), "_", 0); */
 205 /*      fprintf (ti->ci->fh, "(CORBA_unsigned_long) %s__classid,\n", id); */
 206 /*      fprintf (ti->ci->fh, "FORB_VEPV_OFFSET (POA_%s__vepv, %s_epv),\n", ti->for_id, id); */
 207 /*      g_free (id); */
 208 /* } */
 209
 210 static void ck_output_op_skel(IDL_tree op, char *intf_id, OIDL_Run_Info *rinfo, OIDL_C_Info *ci)
 211 {
 212         char *id, *id_plain;
 213         IDL_tree sub;
 214         gboolean  has_retval, has_args;
 215
 216         has_retval = IDL_OP_DCL (op).op_type_spec != NULL;
 217         has_args   = IDL_OP_DCL (op).parameter_dcls != NULL;
 218
 219         id = IDL_ns_ident_to_qstring(IDL_IDENT_TO_NS(IDL_OP_DCL(op).ident), "_", 0);
 220         id_plain = IDL_IDENT(IDL_OP_DCL(op).ident).str;
 221         fprintf(ci->fh, "static void\n"
 222                 "forb_skel_%s(CDR_Codec *cin, CDR_Codec *cout, %s _obj, struct forb_env *env)\n"
 223                 "{\n",
 224                 id, intf_id);
 225 /*      fprintf(ci->fh, "  if (_obj->interface != %s_interface) {\n", intf_id); */
 226 /*      fprintf(ci->fh, "    env->major = FORB_EX_BAD_OPERATION;\n" */
 227 /*                      "    return;\n" */
 228 /*                      "  }\n"); */
 229         fprintf(ci->fh, "  if (_%s_impl(_obj) && _%s_impl(_obj)->%s) {\n", intf_id, intf_id, id_plain);
 230         for (sub = IDL_OP_DCL (op).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
 231                 IDL_tree        parm = IDL_LIST (sub).data;
 232                 char *name = IDL_IDENT(IDL_PARAM_DCL(parm).simple_declarator).str;
 233                 fprintf(ci->fh, "    ");
 234                 forb_cbe_write_typespec(ci->fh, IDL_PARAM_DCL(parm).param_type_spec);
 235                 fprintf(ci->fh, " %s;\n", name);
 236         }
 237         if (has_retval) {
 238                 fprintf (ci->fh, "    ");
 239                 forb_cbe_write_param_typespec (ci->fh, op);
 240                 fprintf (ci->fh, " _forb_ret;\n");
 241         }
 242         for (sub = IDL_OP_DCL (op).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
 243                 IDL_tree        parm = IDL_LIST (sub).data;
 244                 IDL_ParamRole   role;
 245                 role = oidl_attr_to_paramrole(IDL_PARAM_DCL(parm).attr);
 246                 if (role == DATA_IN || role == DATA_INOUT) {
 247                         char *name = IDL_IDENT(IDL_PARAM_DCL(parm).simple_declarator).str;
 248                         fprintf(ci->fh, /* "  r = " */ "    ");
 249                         forb_cbe_write_typespec(ci->fh, IDL_PARAM_DCL(parm).param_type_spec);
 250                         fprintf(ci->fh, "_deserialize(cin, &%s);\n", name);
 251 /*                      fprintf(ci->fh, "    if (!r) { ev->major = FORB_EX_IMP_LIMIT; goto exception; }\n"); */
 252                 }
 253         }
 254         fprintf(ci->fh, "    ");
 255         if (has_retval)
 256                 fprintf(ci->fh, "_forb_ret = ");
 257         fprintf(ci->fh, "_%s_impl(_obj)->%s(_obj, ",
 258                 intf_id, id_plain);
 259         for (sub = IDL_OP_DCL (op).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
 260                 IDL_tree        parm = IDL_LIST (sub).data;
 261                 IDL_ParamRole   role;
 262                 role = oidl_attr_to_paramrole(IDL_PARAM_DCL(parm).attr);
 263                 char *name = IDL_IDENT(IDL_PARAM_DCL(parm).simple_declarator).str;
 264                 /* FIXME: This pointer types also depends on type -
 265                  * use something like in
 266                  * forb_cbe_write_param_typespec_str() */
 267                 if (role == DATA_OUT || role == DATA_INOUT)
 268                         fprintf(ci->fh, "&");
 269                 fprintf(ci->fh, "%s, ", name);
 270         }
 271         fprintf(ci->fh, "env);\n");
 272         fprintf(ci->fh,
 273                 "    if (forb_exception_occured(env)) goto exception;\n");
 274         if (has_retval) {
 275           fprintf(ci->fh, "    ");
 276           forb_cbe_write_typespec(ci->fh, IDL_OP_DCL(op).op_type_spec);
 277           fprintf(ci->fh, "_serialize(cout, &_forb_ret);\n");
 278         }
 279         for (sub = IDL_OP_DCL (op).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
 280                 IDL_tree        parm = IDL_LIST (sub).data;
 281                 IDL_ParamRole   role;
 282                 role = oidl_attr_to_paramrole(IDL_PARAM_DCL(parm).attr);
 283                 if (role == DATA_OUT || role == DATA_INOUT) {
 284                   char *name = IDL_IDENT(IDL_PARAM_DCL(parm).simple_declarator).str;
 285                   fprintf(ci->fh, "    ");
 286                   forb_cbe_write_typespec(ci->fh, IDL_PARAM_DCL(parm).param_type_spec);
 287                   fprintf(ci->fh, "_serialize(cout, &%s);\n", name);
 288                 }
 289         }
 290         fprintf(ci->fh, "exception:;\n");
 291         fprintf(ci->fh, "  } else {\n");
 292         fprintf(ci->fh, "    env->major = FORB_EX_NO_IMPLEMENT;\n");
 293         fprintf(ci->fh, "  }\n");
 294         fprintf(ci->fh, "}\n\n");
 295         g_free(id);
 296 }
 297
 298 static void
 299 cbe_skel_do_interface(IDL_tree tree, OIDL_Run_Info *rinfo, OIDL_C_Info *ci)
 300 {
 301   char *id;
 302   IDL_tree pnt;
 303   IDL_tree sub;
 304   //int i;
 305   //CBESkelVEPVMapTraverseInfo ti;
 306   int num_methods = 0;
 307
 308   /* PIDL methods dont have normal skel functions. */
 309   for ( pnt=tree; pnt; pnt=IDL_NODE_UP(pnt) ) {
 310       if ( pnt->declspec & IDLF_DECLSPEC_PIDL )
 311         return;
 312   }
 313
 314   id = IDL_ns_ident_to_qstring(IDL_IDENT_TO_NS(IDL_INTERFACE(tree).ident), "_", 0);
 315
 316   fprintf(ci->fh, "#define _%s_impl(obj) ((struct forb_%s_implementation*)(obj)->implementation)\n\n", id, id);
 317   fprintf(ci->fh, "static const struct forb_interface %s_interface;\n\n", id);
 318
 319   for(sub = IDL_INTERFACE(tree).body; sub; sub = IDL_LIST(sub).next) {
 320     IDL_tree cur = IDL_LIST(sub).data;
 321
 322     switch(IDL_NODE_TYPE(cur)) {
 323     case IDLN_OP_DCL:
 324       ck_output_op_skel(cur, id, rinfo, ci);
 325       num_methods++;
 326       break;
 327     default:
 328       break;
 329     }
 330   }
 331
 332   fprintf(ci->fh, "static const forb_skel_func %s_skeletons[%d] = {\n",
 333           id, num_methods);
 334   for(sub = IDL_INTERFACE(tree).body; sub; sub = IDL_LIST(sub).next) {
 335     IDL_tree cur = IDL_LIST(sub).data;
 336
 337     switch(IDL_NODE_TYPE(cur)) {
 338     case IDLN_OP_DCL: {
 339       char *op_id;
 340       op_id = IDL_ns_ident_to_qstring(IDL_IDENT_TO_NS(IDL_OP_DCL(cur).ident), "_", 0);
 341       fprintf(ci->fh, "  forb_skel_%s,\n", op_id);
 342       g_free(op_id);
 343       break;
 344     }
 345     default:
 346       break;
 347     }
 348   }
 349   fprintf(ci->fh, "};\n\n");
 350
 351   fprintf(ci->fh, "static const struct forb_interface %s_interface = {\n", id);
 352   fprintf(ci->fh, "  .name = \"%s\",\n", id);
 353   fprintf(ci->fh, "  .num_methods = %d,\n", num_methods);
 354   fprintf(ci->fh, "  .skeletons = %s_skeletons,\n", id);
 355   fprintf(ci->fh, "  .type_hash = 0 /* not implemented */\n");
 356   fprintf(ci->fh, "};\n\n");
 357
 358   fprintf(ci->fh, "void forb_register_%s_interface(void)\n"
 359                   "{\n"
 360                   "  forb_register_interface(&%s_interface);\n"
 361                   "}\n\n", id, id);
 362
 363   fprintf(ci->fh, "%s forb_%s_new(void *instance_data, "
 364                   "const struct forb_%s_implementation *impl)\n"
 365                   "{\n"
 366                   "  %s obj = forb_malloc(sizeof(*obj));\n"
 367                   "  if (obj) {\n"
 368                   "    obj->instance_data = instance_data;\n"
 369                   "    obj->implementation = impl;\n"
 370                   "    obj->interface = &%s_interface;\n"
 371                   "  }\n"
 372                   "  return obj;\n"
 373           "}\n\n", id, id, id, id, id);
 374   fprintf(ci->fh, "\n");
 375
 376
 377 /*   cbe_skel_interface_print_relayer(tree, rinfo, ci); */
 378
 379 /*   fprintf(ci->fh, */
 380 /*        "void POA_%s__init(PortableServer_Servant servant,\nCORBA_Environment *env)\n", */
 381 /*        id); */
 382 /*   fprintf(ci->fh, "{\n"); */
 383 /*   fprintf(ci->fh,"  static PortableServer_ClassInfo class_info = {"); */
 384
 385 /*   fprintf(ci->fh, "NULL, (Forb_small_impl_finder)&get_skel_small_%s, ", id); */
 386
 387 /*   fprintf(ci->fh,"\"%s\", &%s__classid, NULL, &%s__iinterface};\n", */
 388 /*        IDL_IDENT(IDL_INTERFACE(tree).ident).repo_id, id, id); */
 389
 390 /*   fprintf(ci->fh,"  PortableServer_ServantBase__init (" */
 391 /*               "       ((PortableServer_ServantBase *)servant), env);\n"); */
 392
 393 /*   for(curitem = IDL_INTERFACE(tree).inheritance_spec; curitem; */
 394 /*       curitem = IDL_LIST(curitem).next) { */
 395 /*     id2 = IDL_ns_ident_to_qstring(IDL_IDENT_TO_NS(IDL_LIST(curitem).data), */
 396 /*                                "_", 0); */
 397 /*     fprintf(ci->fh, "  POA_%s__init(servant, env);\n", id2); */
 398 /*     g_free(id2); */
 399 /*   } */
 400
 401   /* registering after other __inits() makes the classids increment nicely. */
 402 /*   fprintf (ci->fh, "   Forb_skel_class_register (&class_info,\n"); */
 403 /*   fprintf (ci->fh, "   (PortableServer_ServantBase *)servant, POA_%s__fini,\n", id); */
 404 /*   fprintf (ci->fh, "   FORB_VEPV_OFFSET (POA_%s__vepv, %s_epv),\n", id, id); */
 405 /*   ti.for_id = id; ti.ci = ci; */
 406 /*   IDL_tree_traverse_parents_full (tree, (GFunc) cbe_skel_interface_print_vepvmap_offsets, &ti, FALSE); */
 407 /*   fprintf (ci->fh, "   (CORBA_unsigned_long) 0);"); */
 408
 409 /*   fprintf(ci->fh, "}\n\n"); */
 410
 411 /*   fprintf(ci->fh, */
 412 /*        "void POA_%s__fini(PortableServer_Servant servant,\nCORBA_Environment *env)\n", */
 413 /*        id); */
 414 /*   fprintf(ci->fh, "{\n"); */
 415 /*   if(IDL_INTERFACE(tree).inheritance_spec) */
 416 /*     { */
 417 /*       for(i = IDL_list_length(IDL_INTERFACE(tree).inheritance_spec) - 1; */
 418 /*        i >= 0; i--) { */
 419 /*      curitem = IDL_list_nth(IDL_INTERFACE(tree).inheritance_spec, i); */
 420 /*      id2 = IDL_ns_ident_to_qstring(IDL_IDENT_TO_NS(IDL_LIST(curitem).data), */
 421 /*                                    "_", 0); */
 422 /*      /\* XXX fixme - this is going to call ServantBase__fini multiple times *\/ */
 423 /*      fprintf(ci->fh, "  POA_%s__fini(servant, env);\n", */
 424 /*              id2); */
 425 /*      g_free(id2); */
 426 /*       } */
 427 /*     } */
 428 /*   fprintf(ci->fh, "  PortableServer_ServantBase__fini(servant, env);\n"); */
 429 /*   fprintf(ci->fh, "}\n\n"); */
 430
 431   g_free(id);
 432 }
 433
 434 void
 435 forb_idl_output_c_skeletons (IDL_tree       tree,
 436                               OIDL_Run_Info *rinfo,
 437                               OIDL_C_Info   *ci)
 438 {
 439         fprintf (ci->fh, OIDL_C_WARNING);
 440 /*      fprintf (ci->fh, "#include <string.h>\n"); */
 441 /*      fprintf (ci->fh, "#define FORB2_STUBS_API\n"); */
 442         fprintf (ci->fh, "#include \"%s.h\"\n\n", ci->base_name);
 443
 444         ck_output_poastuff (tree, rinfo, ci);
 445 }