forb-idl/forb-idl-c-stubs.c

   1 #include "config.h"
   2
   3 #include "forb-idl-c-backend.h"
   4
   5 #include <string.h>
   6
   7 static void
   8 cs_output_stub (IDL_tree     tree,
   9                 OIDL_C_Info *ci,
  10                 int         *idx)
  11 {
  12         FILE     *of = ci->fh;
  13         IDL_tree  sub;
  14         char     *iface_id;
  15         char     *opname;
  16         char     *opname_plain;
  17         gboolean  has_retval, has_args;
  18
  19         g_return_if_fail (idx != NULL);
  20
  21         iface_id = IDL_ns_ident_to_qstring (
  22                         IDL_IDENT_TO_NS (IDL_INTERFACE (
  23                                 IDL_get_parent_node (tree, IDLN_INTERFACE, NULL)
  24                                         ).ident), "_", 0);
  25         opname_plain = IDL_IDENT(IDL_OP_DCL (tree).ident).str;
  26         opname = IDL_ns_ident_to_qstring (IDL_IDENT_TO_NS (IDL_OP_DCL (tree).ident), "_", 0);
  27
  28         has_retval = IDL_OP_DCL (tree).op_type_spec != NULL;
  29         has_args   = IDL_OP_DCL (tree).parameter_dcls != NULL;
  30
  31         forb_cbe_op_write_proto (of, tree, "", FALSE);
  32
  33         fprintf (of, "\n{\n");
  34
  35         if (has_retval) {
  36                 fprintf (of, "  ");
  37                 forb_cbe_write_param_typespec (of, tree);
  38                 fprintf (of, " " FORB_RETVAL_VAR_NAME ";\n");
  39         }
  40
  41         fprintf(of, "  if (_obj->type != %s_type) {\n"
  42                     "    ev->major = FORB_EX_BAD_OPERATION;\n", iface_id);
  43         if (has_retval) {
  44                 fprintf(of, "    return "FORB_RETVAL_VAR_NAME";\n");
  45         }
  46         fprintf(of, "  }\n"
  47                     "  if (_obj->methods) {\n"
  48                     "    /* in-proc object */\n"
  49                     "    ");
  50         if (has_retval) {
  51                 fprintf(of, FORB_RETVAL_VAR_NAME " = ");
  52         }
  53         fprintf(of, "forb_%s_methods(obj)->%s(_obj, ",
  54                 iface_id, opname_plain);
  55         for (sub = IDL_OP_DCL (tree).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
  56                 IDL_tree parm = IDL_LIST (sub).data;
  57                 fprintf (of, "%s, ", IDL_IDENT (IDL_PARAM_DCL (parm).simple_declarator).str);
  58         }
  59         fprintf(of, "ev);\n");
  60
  61         fprintf(of, "  } else {\n");
  62         fprintf(of, "    /* remote object */\n"
  63                     "    CORBA_boolean r;\n"
  64                     "    CDR_Codec codec;\n"
  65                     "    forb_request_handle req;\n"
  66                     "    CDR_codec_init_static(&codec);\n"
  67                     "    ex_on_fail(CDR_buffer_init(&codec, 256), FORB_EX_NO_MEMORY);\n");
  68 /*      fprintf(of, "    forb_prepare_request(&codec, _obj, FORB_METHOD_INDEX(%s));\n", */
  69 /*              opname); */
  70         for (sub = IDL_OP_DCL (tree).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
  71                 IDL_tree        parm = IDL_LIST (sub).data;
  72                 IDL_ParamRole   role;
  73                 role = oidl_attr_to_paramrole(IDL_PARAM_DCL(parm).attr);
  74                 if (role == DATA_IN || role == DATA_INOUT) {
  75                   char *name = IDL_IDENT(IDL_PARAM_DCL(parm).simple_declarator).str;
  76                   fprintf(of, "    ex_on_fail(");
  77                   forb_cbe_write_typespec(of, IDL_PARAM_DCL(parm).param_type_spec);
  78                   fprintf(of, "_serialize(&codec, %s), FORB_EX_IMP_LIMIT);\n", name);
  79                 }
  80         }
  81         fprintf(of, "    forb_send_request(_obj, FORB_METHOD_INDEX(%s), &codec, &req, ev);\n",
  82                 opname);
  83         fprintf(of, "    if (forb_exception_occured(ev)) goto exception;\n");
  84         fprintf(of, "    forb_wait_for_reply(&req, ev);\n");
  85         fprintf(of, "    if (forb_exception_occured(ev)) goto exception;\n");
  86         if (has_retval) {
  87           fprintf(of, "    ");
  88           forb_cbe_write_typespec(of, IDL_OP_DCL(tree).op_type_spec);
  89           fprintf(of, "_deserialize(&codec, &"FORB_RETVAL_VAR_NAME");\n");
  90         }
  91         for (sub = IDL_OP_DCL (tree).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
  92                 IDL_tree        parm = IDL_LIST (sub).data;
  93                 IDL_ParamRole   role;
  94                 role = oidl_attr_to_paramrole(IDL_PARAM_DCL(parm).attr);
  95                 if (role == DATA_OUT || role == DATA_INOUT) {
  96                   char *name = IDL_IDENT(IDL_PARAM_DCL(parm).simple_declarator).str;
  97                   fprintf(of, "    ");
  98                   forb_cbe_write_typespec(of, IDL_PARAM_DCL(parm).param_type_spec);
  99                   fprintf(of, "_deserialize(&codec, %s);\n", name);
 100                 }
 101         }
 102         fprintf(of, "exception:\n"
 103                     "    CDR_codec_release_buffer(&codec);\n");
 104         fprintf(of, "  }\n");
 105         if (has_retval) {
 106                 fprintf(of, "  return " FORB_RETVAL_VAR_NAME ";\n");
 107         }
 108
 109         fprintf (of, "}\n\n");
 110
 111         g_free (iface_id);
 112         g_free (opname);
 113
 114         (*idx)++;
 115 }
 116
 117 static void
 118 cs_output_stubs (IDL_tree     tree,
 119                  OIDL_C_Info *ci,
 120                  int         *idx)
 121 {
 122         if (!tree)
 123                 return;
 124
 125         switch (IDL_NODE_TYPE (tree)) {
 126         case IDLN_MODULE:
 127                 cs_output_stubs (IDL_MODULE (tree).definition_list, ci, idx);
 128                 break;
 129         case IDLN_LIST: {
 130                 IDL_tree sub;
 131
 132                 for (sub = tree; sub; sub = IDL_LIST (sub).next)
 133                         cs_output_stubs (IDL_LIST (sub).data, ci, idx);
 134                 break;
 135                 }
 136         case IDLN_ATTR_DCL: {
 137 /*              IDL_tree node; */
 138
 139 /*              for (node = IDL_ATTR_DCL (tree).simple_declarations; node; node = IDL_LIST (node).next) { */
 140 /*                      OIDL_Attr_Info *ai; */
 141
 142 /*                      ai = IDL_LIST (node).data->data; */
 143
 144 /*                      cs_output_stubs (ai->op1, ci, idx); */
 145
 146 /*                      if (ai->op2) */
 147 /*                              cs_output_stubs (ai->op2, ci, idx); */
 148 /*              } */
 149                 break;
 150                 }
 151         case IDLN_INTERFACE: {
 152                 int real_idx = 0;
 153
 154                 cs_output_stubs (IDL_INTERFACE (tree).body, ci, &real_idx);
 155                 break;
 156                 }
 157         case IDLN_OP_DCL:
 158                 cs_output_stub (tree, ci, idx);
 159                 break;
 160         default:
 161                 break;
 162         }
 163 }
 164
 165 void
 166 forb_idl_output_c_stubs (IDL_tree       tree,
 167                           OIDL_Run_Info *rinfo,
 168                           OIDL_C_Info   *ci)
 169 {
 170         fprintf (ci->fh, OIDL_C_WARNING);
 171 /*      fprintf (ci->fh, "#include <string.h>\n"); */
 172 /*      fprintf (ci->fh, "#define FORB2_STUBS_API\n"); */
 173         fprintf (ci->fh, "#include \"%s.h\"\n\n", ci->base_name);
 174
 175         fprintf (ci->fh, "#define ex_on_fail(command, ex) if (!(command)) do { ev->major = (ex); goto exception; } while(0)\n\n");
 176
 177         cs_output_stubs (tree, ci, NULL);
 178 }