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Diffstat (limited to 'TAO/IIOP/lib/object.cpp')
| -rw-r--r-- | TAO/IIOP/lib/object.cpp | 407 |
1 files changed, 0 insertions, 407 deletions
diff --git a/TAO/IIOP/lib/object.cpp b/TAO/IIOP/lib/object.cpp deleted file mode 100644 index fb9bd794e61..00000000000 --- a/TAO/IIOP/lib/object.cpp +++ /dev/null @@ -1,407 +0,0 @@ -// @(#)object.cpp 1.9 95/09/19 -// Copyright 1994-1995 by Sun Microsystems Inc. -// All Rights Reserved -// -// ORB: CORBA::Object operations -// - -#include <assert.h> -#include <limits.h> -#include <string.h> -#include <orb.hh> - -#include <stub.hh> -#include "debug.hh" - -#include <initguid.h> - -// -// Constructor and destructor are accessible to subclasses -// -CORBA_Object::CORBA_Object (IUnknown *_jan) -: parent (_jan) -{ - assert (parent != 0); -} - -CORBA_Object::~CORBA_Object () -{ -} - -// -// CORBA dup/release build on top of COM's (why not). -// -void -CORBA_release ( - CORBA_Object_ptr obj -) -{ - if (obj) - obj->Release (); -} - -CORBA_Object_ptr -CORBA_Object::_duplicate (CORBA_Object_ptr obj) -{ - if (obj) - obj->AddRef (); - return obj; -} - -// -// Null pointers represent nil objects. -// -CORBA_Object_ptr -CORBA_Object::_nil () -{ - return 0; -} - -CORBA_Boolean -CORBA_is_nil (CORBA_Object_ptr obj) -{ - return (CORBA_Boolean) (obj == 0); -} - - -// -// DII hook to objref -// -// The mapping for create_request is split into two forms, corresponding to -// the two usage styles described in CORBA section 6.2.1. -// -void -__stdcall -CORBA_Object::_create_request ( - const CORBA_Char *operation, - CORBA_NVList_ptr arg_list, - CORBA_NamedValue_ptr result, - CORBA_Request_ptr &request, - CORBA_Flags req_flags, - CORBA_Environment &env -) -{ - env.clear (); - request = new CORBA_Request (this, operation, arg_list, result, req_flags); -} - - -CORBA_Request_ptr -__stdcall -CORBA_Object::_request ( - const CORBA_Char *operation, - CORBA_Environment &env -) -{ - env.clear (); - return new CORBA_Request (this, operation); -} - - -// -// GET_INTERFACE ... send a simple call to the object, it returns -// an InterfaceDef objref. -// -static const paramdata Object_get_interface_params [] = { - { _tc_CORBA_Object, PARAM_RETURN, 0 } - // XXX should be tc_InterfaceDef -}; -static const calldata Object_get_interface_calldata = { - "_interface", CORBA_B_TRUE, - 1, &Object_get_interface_params [0], - 0, 0 -}; - - -CORBA_InterfaceDef_ptr -__stdcall -CORBA_Object::_get_interface ( - CORBA_Environment &env -) -{ - CORBA_InterfaceDef_ptr retval = 0; - - // - // At this time, we only have a single generic way to find the - // CORBA interface def for an object. - // - STUB_Object *istub; - - if (QueryInterface (IID_STUB_Object, (void **) &istub) != NOERROR) { - env.exception (new CORBA_DATA_CONVERSION (COMPLETED_NO)); - return retval; - } - Release (); - - // - // NOTE: If istub->type_id is nonzero, we could try asking a - // "local" interface repository and avoid costly network I/O. - // (It's wrong to have different data associated with the same - // interface ID in different repositories; the interface is - // the interface, it doesn't change!) - // - // We need to be prepared to ask the object itself for this - // information though, since there's no guarantee that any - // local interface repository will really have records of this - // particular interface. - // - istub->do_call (env, &Object_get_interface_calldata, &retval); - return retval; -} - - -// -// IS_A ... ask the object if it's an instance of the type whose logical -// type ID is passed as a parameter. -// -static const paramdata Object_is_a_params [] = { - { _tc_CORBA_Boolean, PARAM_RETURN, 0 }, - { _tc_CORBA_String, PARAM_IN, 0 } -}; -static const calldata Object_is_a_calldata = { - "_is_a", CORBA_B_TRUE, - 2, &Object_is_a_params [0], - 0, 0 -}; - - -CORBA_Boolean -__stdcall -CORBA_Object::_is_a ( - const CORBA_Char *type_id, - CORBA_Environment &env -) -{ - // - // At this time, we only have a single generic way to check the - // type of an object. - // - STUB_Object *istub; - - if (QueryInterface (IID_STUB_Object, (void **) &istub) != NOERROR) { - env.exception (new CORBA_DATA_CONVERSION (COMPLETED_NO)); - return CORBA_B_FALSE; - } - Release (); - - // - // NOTE: if istub->type_id is nonzero and we have local knowledge - // of it, we can answer this question without a costly remote call. - // - // That "local knowledge" could come from stubs or skeletons linked - // into this process in the best case, or a "near" repository in a - // slightly worse case. Or in a trivial case, if the ID being asked - // about is the ID we have recorded, we don't need to ask about the - // inheritance relationships at all! - // - // In real systems having local knowledge will be common, though as the - // systems built atop ORBs become richer it'll also become common to - // have the "real type ID" not be directly understood because it's - // more deeply derived than any locally known types. - // - // XXX if type_id is that of CORBA::Object, "yes, we comply" :-) - // - if (istub->type_id != 0 - && ACE_OS::strcmp ((char *)type_id, (char *)istub->type_id) == 0) - return CORBA_B_TRUE; - - // - // Our local knowledge about this type is insufficient to say whether - // this reference is to an object of a type which "is_a" subtype of - // the type whose ID is passed as a parameter. The implementation - // always knows the answer to that question, however! - // - CORBA_Boolean retval = CORBA_B_FALSE; - - istub->do_call (env, &Object_is_a_calldata, &retval, &type_id); - return retval; -} - - -// -// GET_IMPLEMENTATION ... send a simple call to the object, it returns -// an ImplementationDef objref. -// -static const paramdata Object_get_implementation_params [] = { - { _tc_CORBA_Object, PARAM_RETURN, 0 } - // XXX should be tc_ImplementationDef -}; -static const calldata Object_get_implementation_calldata = { - "_implementation", CORBA_B_TRUE, - 1, &Object_get_implementation_params [0], - 0, 0 -}; - - -CORBA_ImplementationDef_ptr -__stdcall -CORBA_Object::_get_implementation ( - CORBA_Environment &env -) -{ - STUB_Object *istub; - CORBA_ImplementationDef_ptr retval = 0; - - if (QueryInterface (IID_STUB_Object, (void **) &istub) != NOERROR) { - env.exception (new CORBA_DATA_CONVERSION (COMPLETED_NO)); - return retval; - } - Release (); - - istub->do_call (env, &Object_get_implementation_calldata, &retval); - return retval; -} - - -// -// NON_EXISTENT ... send a simple call to the object, which will -// either elicit a FALSE response or a OBJECT_NOT_EXIST exception. -// In the latter case, return FALSE. -// -static const paramdata Object_non_existent_params [] = { - { _tc_CORBA_Boolean, PARAM_RETURN, 0 } -}; -static const calldata Object_non_existent_calldata = { - "_non_existent", CORBA_B_TRUE, - 1, &Object_non_existent_params [0], - 0, 0 -}; - - -CORBA_Boolean -__stdcall -CORBA_Object::_non_existent ( - CORBA_Environment &env -) -{ - CORBA_Boolean retval = CORBA_B_FALSE; - CORBA_Exception *x; - STUB_Object *istub; - - if (QueryInterface (IID_STUB_Object, (void **) &istub) != NOERROR) { - env.exception (new CORBA_DATA_CONVERSION (COMPLETED_NO)); - return CORBA_B_FALSE; - } - Release (); - - istub->do_call (env, &Object_non_existent_calldata, &retval); - - if ((x = env.exception ()) != 0) { - char *id; - - id = _tc_CORBA_OBJECT_NOT_EXIST->id (env); - if (env.exception () == 0 - && ACE_OS::strcmp (id, x->id ()) == 0) { - env.clear (); - return CORBA_B_TRUE; - } - // - // reporting a "real" exception ... - // - return CORBA_B_FALSE; - } else { - env.clear (); - return CORBA_B_FALSE; - } -} - - -// -// Quickly hash an object reference's representation data. -// Used to create hash tables. -// -CORBA_ULong -__stdcall -CORBA_Object::_hash ( - CORBA_ULong maximum, - CORBA_Environment &env -) -{ - STUB_Object *istub; - - if (QueryInterface (IID_STUB_Object, (void **) &istub) != NOERROR) { - env.exception (new CORBA_DATA_CONVERSION (COMPLETED_NO)); - return CORBA_B_FALSE; - } - Release (); - - return istub->hash (maximum, env); -} - - -// -// Compare two object references to see if they point to the -// same object. Used in linear searches, as in hash buckets. -// -// XXX would be useful to also have a trivalued comparison predicate, -// such as strcmp(), to allow more comparison algorithms. -// -CORBA_Boolean -__stdcall -CORBA_Object::_is_equivalent ( - CORBA_Object_ptr other_obj, - CORBA_Environment &env -) -{ - STUB_Object *istub; - - if (other_obj == this) { - env.clear (); - return CORBA_B_TRUE; - } - - if (QueryInterface (IID_STUB_Object, (void **) &istub) != NOERROR) { - env.exception (new CORBA_DATA_CONVERSION (COMPLETED_NO)); - return CORBA_B_FALSE; - } - Release (); - - return istub->is_equivalent (other_obj, env); -} - - -// -// COM's IUnknown support -// - -#if unix -// -// XXX this is not the GUID that Microsoft uses. It can matter. -// - -// {77420089-F276-11ce-9598-0000C07CA898} -DEFINE_GUID (IID_IUnknown, -0x77420089, 0xf276, 0x11ce, 0x95, 0x98, 0x0, 0x0, 0xc0, 0x7c, 0xa8, 0x98); -#endif - -#if 0 -// {A201E4C2-F258-11ce-9598-0000C07CA898} -DEFINE_GUID (IID_CORBA_Object, -0xa201e4c2, 0xf258, 0x11ce, 0x95, 0x98, 0x0, 0x0, 0xc0, 0x7c, 0xa8, 0x98); -#endif - - -ULONG -__stdcall -CORBA_Object::AddRef () -{ - return parent->AddRef (); -} - -ULONG -__stdcall -CORBA_Object::Release () -{ - return parent->Release (); -} - -HRESULT -__stdcall -CORBA_Object::QueryInterface ( - REFIID riid, - void **ppv -) -{ - return parent->QueryInterface (riid, ppv); -} - |