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, "  if (ev) ev->major = FORB_EX_NONE;\n");
  47         fprintf(of, "  if (_obj->implementation) {\n"
  48                     "    /* in-proc object */\n");
  49         fprintf(of, "    if (!_obj->interface ||\n"
  50                     "        strncmp(_obj->interface->name, \"%s\", %d) != 0) {\n"
  51                     "      ev->major = FORB_EX_BAD_OPERATION;\n"
  52                     "      return %s;\n"
  53                     "    }\n", iface_id, strlen(iface_id), has_retval ? FORB_RETVAL_VAR_NAME : "");
  54         fprintf(of, "    ");
  55         if (has_retval) {
  56                 fprintf(of, FORB_RETVAL_VAR_NAME " = ");
  57         }
  58         fprintf(of, "_%s_impl(_obj)->%s(_obj, ",
  59                 iface_id, opname_plain);
  60         for (sub = IDL_OP_DCL (tree).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
  61                 IDL_tree parm = IDL_LIST (sub).data;
  62                 fprintf (of, "%s, ", IDL_IDENT (IDL_PARAM_DCL (parm).simple_declarator).str);
  63         }
  64         fprintf(of, "ev);\n");
  65
  66         fprintf(of, "  } else {\n");
  67         fprintf(of, "    /* remote object */\n"
  68                     "    forb_request_t req;\n");
  69         fprintf(of, "    ex_on_fail(forb_request_init(&req, _obj) == 0, FORB_EX_INTERNAL);\n");
  70         fprintf(of, "    forb_iop_prepare_request(&req, \"%s\", FORB_METHOD_INDEX(%s), ev);\n",
  71                 iface_id, opname);
  72         fprintf(of, "    if (forb_exception_occured(ev)) goto exception;\n");
  73         for (sub = IDL_OP_DCL (tree).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
  74                 IDL_tree        parm = IDL_LIST (sub).data;
  75                 IDL_ParamRole   role;
  76                 role = oidl_attr_to_paramrole(IDL_PARAM_DCL(parm).attr);
  77                 if (role == DATA_IN || role == DATA_INOUT) {
  78                   char *name = IDL_IDENT(IDL_PARAM_DCL(parm).simple_declarator).str;
  79                   fprintf(of, "    ex_on_fail(");
  80                   forb_cbe_write_typespec(of, IDL_PARAM_DCL(parm).param_type_spec);
  81                   fprintf(of, "_serialize(&req.cdr_request, %s%s), FORB_EX_IMP_LIMIT);\n",
  82                           role == DATA_IN ? "&":"",
  83                           name);
  84                 }
  85         }
  86         fprintf(of, "    forb_proto_send_request(&req, ev);\n");
  87         fprintf(of, "    if (forb_exception_occured(ev)) goto exception;\n");
  88         fprintf(of, "    forb_request_wait_for_reply(&req);\n");
  89         fprintf(of, "    if (forb_exception_occured(ev)) goto exception;\n");
  90         if (has_retval) {
  91           fprintf(of, "    ");
  92           forb_cbe_write_typespec(of, IDL_OP_DCL(tree).op_type_spec);
  93           fprintf(of, "_deserialize(req.cdr_reply, &"FORB_RETVAL_VAR_NAME");\n");
  94         }
  95         for (sub = IDL_OP_DCL (tree).parameter_dcls; sub; sub = IDL_LIST (sub).next) {
  96                 IDL_tree        parm = IDL_LIST (sub).data;
  97                 IDL_ParamRole   role;
  98                 role = oidl_attr_to_paramrole(IDL_PARAM_DCL(parm).attr);
  99                 if (role == DATA_OUT || role == DATA_INOUT) {
 100                   char *name = IDL_IDENT(IDL_PARAM_DCL(parm).simple_declarator).str;
 101                   fprintf(of, "    ");
 102                   forb_cbe_write_typespec(of, IDL_PARAM_DCL(parm).param_type_spec);
 103                   fprintf(of, "_deserialize(req.cdr_reply, %s);\n", name);
 104                 }
 105         }
 106         fprintf(of, "    forb_request_signal_processed(&req);\n"
 107                     "exception:\n"
 108                     "    forb_request_destroy(&req);\n");
 109         fprintf(of, "  }\n");
 110         if (has_retval) {
 111                 fprintf(of, "  return " FORB_RETVAL_VAR_NAME ";\n");
 112         }
 113
 114         fprintf (of, "}\n\n");
 115
 116         g_free (iface_id);
 117         g_free (opname);
 118
 119         (*idx)++;
 120 }
 121
 122 static void
 123 cs_output_stubs (IDL_tree     tree,
 124                  OIDL_C_Info *ci,
 125                  int         *idx)
 126 {
 127         if (!tree)
 128                 return;
 129
 130         switch (IDL_NODE_TYPE (tree)) {
 131         case IDLN_MODULE:
 132                 cs_output_stubs (IDL_MODULE (tree).definition_list, ci, idx);
 133                 break;
 134         case IDLN_LIST: {
 135                 IDL_tree sub;
 136
 137                 for (sub = tree; sub; sub = IDL_LIST (sub).next)
 138                         cs_output_stubs (IDL_LIST (sub).data, ci, idx);
 139                 break;
 140                 }
 141         case IDLN_ATTR_DCL: {
 142 /*              IDL_tree node; */
 143
 144 /*              for (node = IDL_ATTR_DCL (tree).simple_declarations; node; node = IDL_LIST (node).next) { */
 145 /*                      OIDL_Attr_Info *ai; */
 146
 147 /*                      ai = IDL_LIST (node).data->data; */
 148
 149 /*                      cs_output_stubs (ai->op1, ci, idx); */
 150
 151 /*                      if (ai->op2) */
 152 /*                              cs_output_stubs (ai->op2, ci, idx); */
 153 /*              } */
 154                 break;
 155                 }
 156         case IDLN_INTERFACE: {
 157                 int real_idx = 0;
 158                 char *id;
 159                 /* Do not output skeletons for PIDL interfaces */
 160                 if ((tree->declspec & IDLF_DECLSPEC_PIDL) == 0) {
 161                   id = IDL_ns_ident_to_qstring (IDL_INTERFACE (tree).ident, "_", 0);
 162                   fprintf(ci->fh, "#define _%s_impl(obj) ((struct forb_%s_impl*)(obj)->implementation)\n\n",
 163                           id, id);
 164                   g_free(id);
 165                   cs_output_stubs (IDL_INTERFACE (tree).body, ci, &real_idx);
 166                 }
 167                 break;
 168                 }
 169         case IDLN_OP_DCL:
 170                 cs_output_stub (tree, ci, idx);
 171                 break;
 172         default:
 173                 break;
 174         }
 175 }
 176
 177 void
 178 forb_idl_output_c_stubs (IDL_tree       tree,
 179                           OIDL_Run_Info *rinfo,
 180                           OIDL_C_Info   *ci)
 181 {
 182         fprintf (ci->fh, OIDL_C_WARNING);
 183         fprintf (ci->fh, "#include <string.h>\n");
 184 /*      fprintf (ci->fh, "#define FORB2_STUBS_API\n"); */
 185         fprintf (ci->fh, "#include <forb/forb-internal.h>\n");
 186         fprintf (ci->fh, "#include <forb/request.h>\n");
 187         fprintf (ci->fh, "#include <forb/iop.h>\n");
 188         fprintf (ci->fh, "#include <forb/cdr.h>\n");
 189         fprintf (ci->fh, "#include <forb/object.h>\n\n");
 190         fprintf (ci->fh, "#include \"%s.h\"\n\n", ci->base_name);
 191
 192         fprintf (ci->fh, "#define ex_on_fail(command, ex) if (!(command)) do { ev->major = (ex); goto exception; } while(0)\n");
 193         fprintf (ci->fh, "#define FORB_REQEST_HDR_SIZE (forb_iop_MESSAGE_HEADER_SIZE + forb_iop_REQUEST_HEADER_SIZE)\n\n");
 194
 195         cs_output_stubs (tree, ci, NULL);
 196 }