summaryrefslogtreecommitdiff
path: root/TAO/tao/IIOP_Object.cpp
blob: 28b92705497517bd45fbd3cf9f9a1df25161d9aa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
// $Id$

// @ (#)iiopobj.cpp     1.9 95/11/04
// Copyright 1995 by Sun Microsystems Inc.
// All Rights Reserved
//
// IIOP Bridge:         CORBA::Object operations
//
// Some CORBA::Object and other operations are specific to this IIOP
// based implementation, and can neither be used by other kinds of
// objref nor have a default implementation.

#include "tao/corba.h"

#if !defined (__ACE_INLINE__)
# include "tao/IIOP_Object.i"
#endif /* ! __ACE_INLINE__ */

#include "tao/Timeprobe.h"

ACE_RCSID(tao, IIOP_Object, "$Id$")

#if defined (ACE_ENABLE_TIMEPROBES)

static const char *TAO_IIOP_Object_Timeprobe_Description[] =
{
  "IIOP_Object::do_static_call - start",
  "IIOP_Object::do_static_call - end",
  "IIOP_Object::do_static_call - set_cancel",
  "IIOP_Object::do_static_call - grab_orb_core",
  "IIOP_Object::do_static_call - invocation_ctor",
  "IIOP_Object::do_static_call - invocation_start",
  "IIOP_Object::do_static_call - put_params"
};

enum
{
  // Timeprobe description table start key
  TAO_IIOP_OBJECT_DO_STATIC_CALL_START = 500,
  TAO_IIOP_OBJECT_DO_STATIC_CALL_END,
  TAO_IIOP_OBJECT_DO_STATIC_CALL_SET_CANCEL,
  TAO_IIOP_OBJECT_DO_STATIC_CALL_GRAB_ORB_CORE,
  TAO_IIOP_OBJECT_DO_STATIC_CALL_INVOCATION_CTOR,
  TAO_IIOP_OBJECT_DO_STATIC_CALL_INVOCATION_START,
  TAO_IIOP_OBJECT_DO_STATIC_CALL_PUT_PARAMS
};

// Setup Timeprobes
ACE_TIMEPROBE_EVENT_DESCRIPTIONS (TAO_IIOP_Object_Timeprobe_Description,
                                  TAO_IIOP_OBJECT_DO_STATIC_CALL_START);

#endif /* ACE_ENABLE_TIMEPROBES */

int
IIOP::Profile::set (const char *h,
                    const CORBA::UShort p,
                    const ACE_INET_Addr *addr)
{
  this->iiop_version.major = IIOP::MY_MAJOR;
  this->iiop_version.minor = IIOP::MY_MINOR;

  if (this->host)
    {
      delete [] this->host;
      this->host = 0;
    }

  this->port = p;

  if (h)
    {
      ACE_NEW_RETURN (this->host,
                      char[ACE_OS::strlen(h) + 1],
                      -1);
      ACE_OS::strcpy (this->host, h);
    }

  this->object_addr (addr);
  return 0;
}

int
IIOP::Profile::set (const char *h,
                    const CORBA::UShort p,
                    const char *key,
                    const ACE_INET_Addr *addr)
{
  if (key == 0)
    return -1;

  if (this->set (h, p, addr) == -1)
    return -1;

  int l = ACE_OS::strlen (key);
  this->object_key.length (l);

  for (int i = 0; i < l; ++i)
    this->object_key[i] = key[i];

  return 0;
}

int
IIOP::Profile::set (const char *h,
                    const CORBA::UShort p,
                    const TAO_opaque &key,
                    const ACE_INET_Addr *addr)
{
  if (this->set (h, p, addr) == -1)
    return -1;

  this->object_key = key;

  return 0;
}

IIOP::Profile::Profile (const IIOP::Profile &src)
  : host (0)
{
  (void) this->set (src.host,
                    src.port,
                    src.object_key,
                    &src.object_addr_);
}

int
IIOP::Profile::set (const ACE_INET_Addr &addr,
                    const char *key)
{
  // Set up an IIOP Profile to hold the host name.

  if (addr.get_ip_address () == INADDR_ANY)
    {
      // Special case.
      char temphost[MAXHOSTNAMELEN + 1];
      if (addr.get_host_name (temphost, sizeof(temphost)) != 0)
        return -1;
      else
        return this->set (temphost,
                          addr.get_port_number (),
                          key,
                          &addr);
    }
  else
    {
      const char *tempaddr = addr.get_host_name ();
      if (tempaddr == 0)
        return -1;
      else
        return this->set (tempaddr,
                          addr.get_port_number (),
                          key,
                          &addr);
    }
}

int
IIOP::Profile::set (const ACE_INET_Addr &addr,
                    const TAO_opaque &key)
{
  // Set up an IIOP Profile to hold the host name.

  if (addr.get_ip_address () == INADDR_ANY)
    {
      // Special case.
      char temphost[MAXHOSTNAMELEN + 1];
      if (addr.get_host_name (temphost, sizeof(temphost)) != 0)
        return -1;
      else
        return this->set (temphost,
                          addr.get_port_number (),
                          key,
                          &addr);
    }
  else
    {
      const char *tempaddr = addr.get_host_name ();
      if (tempaddr == 0)
        return -1;
      else
        return this->set (tempaddr,
                          addr.get_port_number (),
                          key,
                          &addr);
    }
}

IIOP::Profile::Profile (const char *h,
                        const CORBA::UShort p,
                        const char *key)
  : host (0)
{
  (void) this->set (h, p, key);
}

IIOP::Profile::Profile (const char *h,
                        const CORBA::UShort p,
                        const char *key,
                        const ACE_INET_Addr &addr)
  : host (0)
{
  (void) this->set (h, p, key, &addr);
}

IIOP::Profile::Profile (const ACE_INET_Addr &addr,
                        const char *key)
  : host (0)
{
  (void) this->set (addr, key);
}

IIOP::Profile::Profile (const ACE_INET_Addr &addr,
                        const TAO_opaque &key)
  : host (0)
{
  (void) this->set (addr, key);
}


IIOP::Profile
&IIOP::Profile::operator = (const IIOP::Profile &src)
{
  this->set (src.host,
             src.port,
             src.object_key,
             &src.object_addr_);
  return *this;
}



// Quick'n'dirty hash of objref data, for partitioning objrefs into
// sets.
//
// NOTE that this must NOT go across the network!

CORBA::ULong
IIOP_Object::hash (CORBA::ULong max,
                   CORBA::Environment &env)
{
  CORBA::ULong hashval;

  env.clear ();

  // Just grab a bunch of convenient bytes and hash them; could do
  // more (hostname, full key, exponential hashing) but no real need
  // to do so except if performance requires a more costly hash.

  hashval = profile.object_key.length () * profile.port;
  hashval += profile.iiop_version.minor;

  if (profile.object_key.length () >= 4)
    {
      hashval += profile.object_key [1];
      hashval += profile.object_key [3];
    }

  return hashval % max;
}

int operator==(const TAO_opaque& rhs,
               const TAO_opaque& lhs)
{
  if (rhs.length () != lhs.length ())
    return 0;

  for (CORBA::ULong i = 0;
       i < rhs.length ();
       ++i)
    if (rhs[i] != lhs[i])
      return 0;

  return 1;
}

// Expensive comparison of objref data, to see if two objrefs
// certainly point at the same object. (It's quite OK for this to
// return FALSE, and yet have the two objrefs really point to the same
// object.)
//
// NOTE that this must NOT go across the network!

CORBA::Boolean
IIOP_Object::is_equivalent (CORBA::Object_ptr other_obj,
                            CORBA::Environment &env)
{
  env.clear ();

  if (CORBA::is_nil (other_obj) == CORBA::B_TRUE)
    return CORBA::B_FALSE;

  IIOP_Object *other_iiop_obj =
    ACE_dynamic_cast (IIOP_Object*, other_obj->_stubobj ());
  if (other_iiop_obj == 0)
    return CORBA::B_FALSE;

  // Compare all the bytes of the object address -- must be the same.

  IIOP::Profile *body = &profile;
  IIOP::Profile *body2 = &other_iiop_obj->profile;

  ACE_ASSERT (body->object_key.length () < UINT_MAX);

  return body->object_key == body2->object_key
    && body->port == body2->port
    && ACE_OS::strcmp (body->host, body2->host) == 0
    && body->iiop_version.minor == body2->iiop_version.minor
    && body->iiop_version.major == body2->iiop_version.major;
}

// Memory managment

CORBA::ULong
IIOP_Object::_incr_refcnt (void)
{
  ACE_GUARD_RETURN (ACE_SYNCH_MUTEX, guard, this->refcount_lock_, 0);

  return this->refcount_++;
}

CORBA::ULong
IIOP_Object::_decr_refcnt (void)
{
  {
    ACE_GUARD_RETURN (ACE_SYNCH_MUTEX, mon, this->refcount_lock_, 0);
    this->refcount_--;
    if (this->refcount_ != 0)
      return this->refcount_;
  }

  delete this;
  return 0;
}

// TAO extensions
TAO_ObjectKey*
IIOP_Object::key (CORBA::Environment &)
{
  return new TAO_ObjectKey (this->profile.object_key);
}

// Note that if the repository ID (typeID) is NULL, it will make
// narrowing rather expensive, though it does ensure that type-safe
// narrowing code gets thoroughly exercised/debugged!  Without a
// typeID, the _narrow will be required to make an expensive remote
// "is_a" call.

IIOP_Object::IIOP_Object (const char *host,
                          const CORBA::UShort port,
                          const char *objkey,
                          char *repository_id)
  : STUB_Object (repository_id),
    profile (host, port, objkey),
    refcount_ (1),
    handler_ (0)
{
}

// Constructor.  It will usually be used by the server side.
IIOP_Object::IIOP_Object (char *repository_id,
                          const ACE_INET_Addr &addr,
                          const char *objkey)
  : STUB_Object (repository_id),
    profile (addr, objkey),
    fwd_profile_ (0),
    refcount_ (1),
    handler_ (0)
{
  this->fwd_profile_lock_ptr_ =  TAO_ORB_Core_instance ()
                                ->client_factory ()
                                  ->create_iiop_profile_lock ();
}

// THREADING NOTE: Code below this point is of course thread-safe (at
// least on supported threaded platforms), so the caller of these
// routines need only ensure that the data being passed in is not
// being modified by any other thread.
//
// As an _experiment_ (to estimate the performance cost) remote calls
// are currently deemed "cancel-safe".  That means that they can be
// called by threads when they're in asynchronous cancellation mode.
// The only effective way to do this is to disable async cancellation
// for the duration of the call.  There are numerous rude interactions
// with code generators for C++ ... cancellation handlers just do
// normal stack unwinding like exceptions, but exceptions are purely
// synchronous and sophisticated code generators rely on that to
// generate better code, which in some cases may be very hard to
// unwind.

class TAO_Synchronous_Cancellation_Required
  // = TITLE
  //     Stick one of these at the beginning of a block that can't
  //     support asynchronous cancellation, and which must be
  //     cancel-safe.
  //
  // = EXAMPLE
  //     somefunc()
  //     {
  //       TAO_Synchronous_Cancellation_Required NOT_USED;
  //       ...
  //     }
{
public:
  // These should probably be in a separate inline file, but they're
  // only used within this one file right now, and we always want them
  // inlined, so here they sit.
  TAO_Synchronous_Cancellation_Required (void)
    : old_type_ (0)
    {
#if !defined (VXWORKS)
      ACE_OS::thr_setcanceltype (THR_CANCEL_DEFERRED, &old_type_);
#endif /* ! VXWORKS */
    }

  ~TAO_Synchronous_Cancellation_Required (void)
    {
#if !defined (VXWORKS)
      int dont_care;
      ACE_OS::thr_setcanceltype(old_type_, &dont_care);
#endif /* ! VXWORKS */
    }
private:
  int old_type_;
};

// "Stub interpreter" for static stubs.  IDL compiler (or human
// equivalent thereof :-) should just dump a read-only description of
// the call into "calldata" and do varargs calls to this routine,
// which does all the work.

void
IIOP_Object::do_static_call (CORBA::Environment &env,
                             const TAO_Call_Data *info,
                             void** args)

{
  ACE_FUNCTION_TIMEPROBE (TAO_IIOP_OBJECT_DO_STATIC_CALL_START);

  TAO_Synchronous_Cancellation_Required NOT_USED;

  ACE_TIMEPROBE (TAO_IIOP_OBJECT_DO_STATIC_CALL_SET_CANCEL);

  TAO_ORB_Core* orb_core = TAO_ORB_Core_instance ();

  ACE_TIMEPROBE (TAO_IIOP_OBJECT_DO_STATIC_CALL_GRAB_ORB_CORE);

  // Do a locate_request if necessary/wanted.
  if (this->use_locate_request_ && this->first_locate_request_)
  {
    TAO_GIOP_Locate_Request_Invocation call (this, orb_core);

    call.start (env);
         
    TAO_GIOP_ReplyStatusType  status = call.invoke (env);

    this->first_locate_request_ = CORBA::B_FALSE;

    if (status == TAO_GIOP_SYSTEM_EXCEPTION)
      return;
  }

  if (info->is_roundtrip)
    {
      TAO_GIOP_Twoway_Invocation call (this, info->opname, orb_core);
      ACE_TIMEPROBE (TAO_IIOP_OBJECT_DO_STATIC_CALL_INVOCATION_CTOR);

      // We may need to loop through here more than once if we're
      // forwarded to some other object reference.
      //
      // NOTE: A quality-of-service policy may be useful to establish
      // here, specifically one controlling how many times the call is
      // reissued before failing the call on the assumption that
      // something is broken.
      //
      // NOTE: something missing is a dynamic way to change the policy
      // of whether to issue LocateRequest messages or not.  This code
      // uses a simple, fixed policy: never use LocateRequest
      // messages.
      //
      for (;;)
        {
          // Start the call by constructing the request message header.
          call.start (env);

          ACE_TIMEPROBE (TAO_IIOP_OBJECT_DO_STATIC_CALL_INVOCATION_START);
          if (env.exception () != 0) return;

          this->put_params (env, info, call, args);
          if (env.exception () != 0) return;

          ACE_TIMEPROBE (TAO_IIOP_OBJECT_DO_STATIC_CALL_PUT_PARAMS);
          TAO_GIOP_ReplyStatusType status =
            call.invoke (info->excepts, info->except_count,env);

          if (status == TAO_GIOP_SYSTEM_EXCEPTION
              || status == TAO_GIOP_USER_EXCEPTION)
            return;
          else if (status == TAO_GIOP_NO_EXCEPTION)
            {
              // Now, get all the "return", "out", and "inout"
              // parameters from the response message body.

              const TAO_Param_Data *pdp = info->params;
              for (void** i = args;
                   i !=  args + info->param_count;
                   i++, pdp++)
                {
                  void *ptr = *i;

                  // if it is an inout parameter, it would become
                  // necessary to first release the "in" memory
                  if (pdp->mode == PARAM_INOUT)
                    {
                      // @@ TODO - add others as we test each case
                      // (ASG) will do 03/22/98.
                      // @@ IMHO this should be handled in the stub
                      // (coryan)
                      switch (pdp->tc->kind (env))
                        {
                        case CORBA::tk_string:
                          {
                            CORBA::string_free (*(char **)ptr);
                            *(char **)ptr = 0;
                          }
                        break;
                        default:
                          break;
                        }
                    }
                  if (pdp->mode == PARAM_RETURN
                      || pdp->mode == PARAM_OUT
                      || pdp->mode == PARAM_INOUT)
                    {
                      // The language mapping's memory allocation
                      // policy says that some data is heap-allocated.
                      // This interpreter is told about the relevant
                      // policy by whoever built the operation
                      // description (e.g. the IDL compiler) so it
                      // doesn't have to know the policy associated
                      // with a particular language binding
                      // (e.g. C/C++ differ, and C++ even has
                      // different policies for different kinds of
                      // structures).
                      if (pdp->value_size == 0)
                        call.get_value (pdp->tc, ptr, env);
                      else
                        {
                          // @@ (ASG) -  I think we must completely
                          // get rid of this case because IDL compiler
                          // generated stubs will use this function
                          // and they better allocate all the memory.

                          // assert (value_size == tc->size());
                          *(void **)ptr = new CORBA::Octet [pdp->value_size];
                          call.get_value (pdp->tc, *(void **)ptr, env);
                        }

                      if (env.exception ())
                        {
                          dexc (env, "do_static_call, get reply parameter");
                          return;
                        }
                    }
                }
              return;
            }
          // ... or maybe this request got forwarded to someplace
          // else; send the request there instead.
          if (status != TAO_GIOP_LOCATION_FORWARD)
            {
              // @@ What is the right exception to throw in this case?
              env.exception (new CORBA::COMM_FAILURE (CORBA::COMPLETED_MAYBE));
              return;
            }
        }
    }
  else
    {
      TAO_GIOP_Oneway_Invocation call (this, info->opname, orb_core);
      ACE_TIMEPROBE (TAO_IIOP_OBJECT_DO_STATIC_CALL_INVOCATION_CTOR);

      // Start the call by constructing the request message header.
      call.start (env);
      ACE_TIMEPROBE (TAO_IIOP_OBJECT_DO_STATIC_CALL_INVOCATION_START);
      if (env.exception () != 0) return;

      this->put_params (env, info, call, args);
      if (env.exception () != 0) return;

      ACE_TIMEPROBE (TAO_IIOP_OBJECT_DO_STATIC_CALL_PUT_PARAMS);
      /* TAO_GIOP_ReplyStatusType status = */ call.invoke (env);

      // @@ TODO We do not get any LOCATION_FORWARD in this case,
      // IMHO this is a good case for use of a LocateRequest,
      // under some strategy control, of course. In that case we need
      // a loop, as above.
    }
}

void
IIOP_Object::put_params (CORBA::Environment &env,
                         const TAO_Call_Data *info,
                         TAO_GIOP_Invocation &call,
                         void** args)
{
  if (env.exception ())
    {
      dexc (env, "do_static_call, start request message");
      return;
    }

  // Now, put all "in" and "inout" parameters into the request
  // message body.
  //
  // Some "inout" data have an extra level of indirection,
  // specified by the language mapping's memory allocation
  // policies ... the indirection only shows up here when it's
  // needed later for allocating "out" memory, otherwise there's
  // just one indirection.

  const TAO_Param_Data *pdp = info->params;
  for (void** i = args;
       i != args + info->param_count;
       i++, pdp++)
    {
      void *ptr = *i;

      if (pdp->mode == PARAM_IN)
        call.put_param (pdp->tc, ptr, env);
      else if (pdp->mode == PARAM_INOUT)
        {
          if (pdp->value_size == 0)
            call.put_param (pdp->tc, ptr, env);
          else
            call.put_param (pdp->tc, *(void **)ptr, env);
        }
      if (env.exception ())
        {
          dexc (env, "do_static_call, put request parameter");
          return;
        }
    }
}

// DII analogue of the above.

void
IIOP_Object::do_dynamic_call (const char *opname,
                              CORBA::Boolean is_roundtrip,
                              CORBA::NVList_ptr args,
                              CORBA::NamedValue_ptr result,
                              CORBA::Flags flags,
                              CORBA::ExceptionList &exceptions,
                              CORBA::Environment &env)
{
  TAO_Synchronous_Cancellation_Required NOT_USED;

  TAO_ORB_Core *orb_core = TAO_ORB_Core_instance ();
  if (is_roundtrip)
    {
      TAO_GIOP_Twoway_Invocation call (this, opname, orb_core);

      // Loop as needed for forwarding; see above.

      for (;;)
        {
          call.start (env);
          if (env.exception () != 0) return;

          this->put_params (call, args, env);
          if (env.exception () != 0) return;

          // Make the call ... blocking for the response.
          TAO_GIOP_ReplyStatusType status =
            call.invoke (exceptions, env);
          if (env.exception ())
            {
              dexc (env, "do_dynamic_call, invoke");
              return;
            }
          if (status == TAO_GIOP_SYSTEM_EXCEPTION
              || status == TAO_GIOP_USER_EXCEPTION)
            return;

          // Now, get all the "return", "out", and "inout" parameters
          // from the response message body ... return parameter is
          // first, the rest are in the order defined in the IDL spec
          // (which is also the order that DII users are required to
          // use).

          if (status == TAO_GIOP_NO_EXCEPTION)
            {
              if (result != 0)
                {
#if 0
                  // @@ (ASG) I need to look into this OUT_LIST_MEMORY stuff
                  // (4/21/98).

                  // If caller didn't set OUT_LIST_MEMORY flag, allocate
                  // memory for return value ...

                  if (!(flags & CORBA::OUT_LIST_MEMORY))
                    {
                      CORBA::TypeCode_var tcp = result->value ()->type ();
                      size_t size = tcp->size (env);
                      dexc (env, "do_dynamic_call, get result size");

                      if (size != 0)
                        {
                          void *ptr = new CORBA::Octet [size];

                          result->value ()->replace (tcp.in (), ptr,
                                                     CORBA::B_TRUE, env);
                          dexc (env, "do_dynamic_call, set result mem");
                        }
                    }
#endif
                  if (!result->value ()->value_)
                    {
                      // storage was not allocated. In this case, we
                      // simply grab the portion of the CDR stream
                      // that contained this parameter, The
                      // application should use the appropriate >>=
                      // operator to retrieve the value
                      char *begin, *end;
                      TAO_InputCDR temp (call.inp_stream ());
                      CORBA::TypeCode::traverse_status retval;
                      CORBA::Any *any = result->value ();

                      begin = call.inp_stream ().rd_ptr ();
                      // skip the parameter to get the ending position
                      retval = temp.skip (any->type_, env);
                      if (retval == CORBA::TypeCode::TRAVERSE_CONTINUE)
                        {
                          end = temp.rd_ptr ();
                          any->cdr_ = new ACE_Message_Block (end - begin);
                          TAO_OutputCDR out (any->cdr_);

                          retval = out.append (any->type_,
                                               &call.inp_stream (), env);
                          if (retval == CORBA::TypeCode::TRAVERSE_CONTINUE)
                            {
                              any->any_owns_data_ = 1;
                              any->value_ = 0;
                            }
                        }
                    }
                  else
                    {
                      // the application had allocated the top level
                      // storage. We simply retrieve the data
                      call.get_value (result->value ()->type_,
                                      result->value ()->value_, env);
                    }
                }

              for (u_int i = 0; i < args->count (); i++)
                {
                  CORBA::NamedValue_ptr value = args->item (i, env);
                  CORBA::Any *any = value->value ();

                  if (value->flags () == CORBA::ARG_OUT
                      || value->flags () == CORBA::ARG_INOUT)
                    {
#if 0
                      // @@  (ASG) need to deal with this

                      // If caller didn't set OUT_LIST_MEMORY flag, allocate
                      // memory for this parameter ...
                      if (!(flags & CORBA::OUT_LIST_MEMORY))
                        {
                          CORBA::TypeCode_var tcp = value->value ()->type ();
                          size_t size = tcp->size (env);
                          dexc (env, "do_dynamic_call, get param size");

                          if (size != 0)
                            {
                              CORBA::Octet *ptr = new CORBA::Octet [size];

                              value->value ()->replace (tcp.in (), ptr,
                                                        CORBA::B_TRUE, env);
                              dexc (env, "do_dynamic_call, set result mem");
                            }
                        }
#endif
                      if (!any->value_)
                        {
                          // storage was not allocated. In this case,
                          // we simply grab the portion of the CDR
                          // stream that contained this parameter, The
                          // application should use the appropriate
                          // >>= operator to retrieve the value
                          char *begin, *end;
                          TAO_InputCDR temp (call.inp_stream ());
                          CORBA::TypeCode::traverse_status retval;

                          begin = call.inp_stream ().rd_ptr ();
                          // skip the parameter to get the ending position
                          retval = temp.skip (any->type_, env);
                          if (retval == CORBA::TypeCode::TRAVERSE_CONTINUE)
                            {
                              end = temp.rd_ptr ();
                              any->cdr_ = new ACE_Message_Block (end - begin);
                              TAO_OutputCDR out (any->cdr_);

                              retval = out.append (any->type_,
                                                   &call.inp_stream (), env);
                              if (retval == CORBA::TypeCode::TRAVERSE_CONTINUE)
                                {
                                  any->any_owns_data_ = 1;
                                  any->value_ = 0;
                                }
                            }
                        }
                      else
                        {
                          // the application had allocated the top level
                          // storage. We simply retrieve the data
                          call.get_value (any->type_,
                                          (void *) any->value_, env);
                        }
                      if (env.exception ())
                        {
                          dexc (env, "do_dynamic_call, get response parameter");
                          return;
                        }
                    }
                }
              return;
            }
          // ... or maybe this request got forwarded to someplace else.
          assert (status == TAO_GIOP_LOCATION_FORWARD);
          // @@ TODO We should not use assert because it crashes the
          // application, raise an exception
        }
    }
  else
    {
      TAO_GIOP_Oneway_Invocation call (this, opname, orb_core);
      call.start (env);
      if (env.exception () != 0) return;

      this->put_params (call, args, env);
      if (env.exception () != 0) return;

      (void) call.invoke (env);
    }

}

void
IIOP_Object::put_params (TAO_GIOP_Invocation &call,
                         CORBA::NVList_ptr args,
                         CORBA::Environment &env)
{
  // Now, put all "in" and "inout" parameters into the request
  // message body.

  for (u_int i = 0; i < args->count (); i++)
    {
      CORBA::NamedValue_ptr value = args->item (i, env);

      if (value->flags () == CORBA::ARG_IN
          || value->flags () == CORBA::ARG_INOUT)
        {
          // if the Any owns the data, then we already have a CDR encoded
          // data
          if (value->value ()->any_owns_data_)
            {
              TAO_OutputCDR &cdr = call.out_stream ();
              TAO_InputCDR in (value->value ()->cdr_);
              cdr.append (value->value ()->type_, &in, env);
            }
          else
            {
              call.put_param (value->value ()->type_,
                              value->value ()->value_, env);
            }
          if (env.exception ())
            {
              dexc (env, "do_dynamic_call, put request parameter");
              return;
            }
        }
    }
}