TAO/TAO_IDL/be/be_visitor_native/native_ch.cpp

   1
   2 //=============================================================================
   3 /**
   4  *  @file    native_ch.cpp
   5  *
   6  *  Visitor generating code for Native in the client header
   7  *
   8  *  @author Johnny Willemsen
   9  */
  10 //=============================================================================
  11
  12 #include "native.h"
  13 #include "be_visitor_typecode/typecode_decl.h"
  14 #include "global_extern.h"
  15 #include <cstring>
  16
  17 // ********************************************************************
  18 // Visitor implementation for the Native type
  19 // This one for the client header file
  20 // ********************************************************************
  21
  22 be_visitor_native_ch::be_visitor_native_ch (be_visitor_context *ctx)
  23   : be_visitor_scope (ctx)
  24 {
  25 }
  26
  27 /// Visit the native_ch node and its scope.
  28 int
  29 be_visitor_native_ch::visit_native (be_native *node)
  30 {
  31   if (node->cli_hdr_gen () || node->imported ())
  32     {
  33       return 0;
  34     }
  35
  36   TAO_OutStream *os = this->ctx_->stream ();
  37
  38   TAO_INSERT_COMMENT (os);
  39
  40   const char *node_name = node->full_name ();
  41
  42   if (ACE_OS::strcmp (node_name, "PortableServer::ServantLocator::Cookie") == 0)
  43     {
  44       *os << "typedef void *Cookie;" << be_nl;
  45     }
  46   else if (ACE_OS::strcmp (node_name, "CORBA::VoidData") == 0)
  47     {
  48       *os << "typedef void *VoidData;" << be_nl;
  49     }
  50   else if (idl_global->dcps_support_zero_copy_read ()
  51            && 0 == ACE_OS::strcmp (node->full_name (),"DDS::SampleInfoSeq"))
  52     {
  53       // DDS/DCPS zero-copy read sequence type support.
  54       *os << be_nl_2
  55           << "typedef ::TAO::DCPS::ZeroCopyInfoSeq< "
  56           << "SampleInfo"
  57           << ", DCPS_ZERO_COPY_SEQ_DEFAULT_SIZE> "
  58           << "SampleInfo"
  59           << "Seq;" << be_nl;
  60     }
  61   else if (idl_global->dcps_support_zero_copy_read ())
  62     {
  63       // DDS/DCPS zero-copy read sequence type support.
  64
  65       // strip  the "Seq" ending to get the sample's name
  66       const char * node_name = node->full_name ();
  67       const size_t max_name_length = 2000;
  68       const size_t node_name_length = std::strlen (node_name);
  69       if (node_name_length >= max_name_length ||
  70           node_name_length <= 3)
  71         {
  72           return -1;
  73         }
  74       char sample_name[max_name_length];
  75       // Copy node_name into sample_name and shorten to remove Seq suffix
  76       std::strcpy (sample_name, node_name);
  77       sample_name[node_name_length - 3] = '\0';
  78
  79       *os << be_nl_2
  80           << "typedef ::TAO::DCPS::ZeroCopyDataSeq< "
  81           << sample_name
  82           << ", DCPS_ZERO_COPY_SEQ_DEFAULT_SIZE> "
  83           << node->local_name ()
  84           << ";" << be_nl;
  85     }
  86
  87   node->cli_hdr_gen (true);
  88   return 0;
  89 }
  90