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// @(#)request.cpp 1.6 95/09/24
// Copyright 1994-1995 by Sun Microsystems Inc.
// All Rights Reserved
//
// Implementation of Dynamic Invocation Interface
//
#include <corba/orb.hh>
#include <corba/stub.hh>
#include <initguid.h>
#include "runtime/debug.hh"
#include "runtime/cdr.hh"
#include "runtime/thread.hh"
// {77420085-F276-11ce-9598-0000C07CA898}
DEFINE_GUID (IID_CORBA_Request,
0x77420085, 0xf276, 0x11ce, 0x95, 0x98, 0x0, 0x0, 0xc0, 0x7c, 0xa8, 0x98);
#ifdef _POSIX_THREADS
static pthread_mutex_t refcnt_lock = PTHREAD_MUTEX_INITIALIZER;
#endif // _POSIX_THREADS
ULONG
__stdcall
CORBA_Request::AddRef ()
{
#ifdef _POSIX_THREADS
Critical region (&refcnt_lock);
#endif
return _refcount++;
}
ULONG
__stdcall
CORBA_Request::Release ()
{
#ifdef _POSIX_THREADS
Critical region (&refcnt_lock);
#endif
assert (this != 0);
if (--_refcount != 0)
return _refcount;
delete this;
return 0;
}
HRESULT
__stdcall
CORBA_Request::QueryInterface (
REFIID riid,
void **ppv
)
{
*ppv = 0;
if (IID_CORBA_Request == riid || IID_IUnknown == riid)
*ppv = this;
if (*ppv == 0)
return ResultFromScode (E_NOINTERFACE);
(void) AddRef ();
return NOERROR;
}
//
// Reference counting for DII Request object
//
void
CORBA_release (CORBA_Request_ptr req)
{
if (req)
req->Release ();
}
CORBA_Boolean
CORBA_is_nil (CORBA_Request_ptr req)
{
return (CORBA_Boolean)(req == 0);
}
//
// DII Request class implementation
//
CORBA_Request::CORBA_Request (
CORBA_Object_ptr obj,
const CORBA_Char *op,
CORBA_NVList_ptr args,
CORBA_NamedValue_ptr result,
CORBA_Flags flags
) :
_args (args),
_result (result),
_flags (flags),
_refcount (1)
{
_target = CORBA_Object::_duplicate (obj);
_opname = CORBA_string_copy (op);
}
CORBA_Request::CORBA_Request (
CORBA_Object_ptr obj,
const CORBA_Char *op
) :
_flags (0),
_refcount (1)
{
_target = CORBA_Object::_duplicate (obj);
_opname = CORBA_string_copy (op);
_args = new CORBA_NVList;
_result = new CORBA_NamedValue;
}
CORBA_Request::~CORBA_Request ()
{
assert (_refcount == 0);
CORBA_release (_target);
CORBA_string_free ((CORBA_String)_opname);
CORBA_release (_args);
CORBA_release (_result);
}
//
// The public DII interfaces: normal and oneway calls.
//
// NOTE that using DII, programmers can get the special behaviour of
// discarding the response for normal calls. This doesn't change the
// semantics of any OMG-IDL interface, it just streamlines control flow
// in some exotic situations.
//
void
CORBA_Request::invoke ()
{
STUB_Object *stub;
if (_target->QueryInterface (IID_STUB_Object, (void **) &stub) != NOERROR) {
_env.exception (new CORBA_DATA_CONVERSION (COMPLETED_NO));
return;
}
stub->do_dynamic_call ((char *)_opname, CORBA_B_TRUE,
_args, _result, _flags, _exceptions, _env);
stub->Release ();
}
void
CORBA_Request::send_oneway ()
{
STUB_Object *stub;
if (_target->QueryInterface (IID_STUB_Object, (void **) &stub) != NOERROR) {
_env.exception (new CORBA_DATA_CONVERSION (COMPLETED_NO));
return;
}
stub->do_dynamic_call ((char *)_opname, CORBA_B_TRUE,
_args, _result, _flags, _exceptions, _env);
stub->Release ();
}
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