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// $Id$
#ifndef TAO_BINDINGS_ITERATOR_T_CPP
#define TAO_BINDINGS_ITERATOR_T_CPP
#include "Bindings_Iterator_T.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
template <class ITERATOR, class TABLE_ENTRY>
TAO_Bindings_Iterator<ITERATOR, TABLE_ENTRY>::TAO_Bindings_Iterator (TAO_Hash_Naming_Context *context,
ITERATOR *hash_iter,
PortableServer::POA_ptr poa,
ACE_SYNCH_RECURSIVE_MUTEX &lock)
: destroyed_ (0),
context_ (context),
hash_iter_ (hash_iter),
lock_ (lock),
poa_ (PortableServer::POA::_duplicate (poa))
{
}
template <class ITERATOR, class TABLE_ENTRY>
TAO_Bindings_Iterator<ITERATOR, TABLE_ENTRY>::~TAO_Bindings_Iterator (void)
{
ACE_DECLARE_NEW_CORBA_ENV;
delete hash_iter_;
// Since we are going away, decrement the reference count on the
// Naming Context we were iterating over.
context_->interface ()->_remove_ref (ACE_TRY_ENV);
}
// Return the Default POA of this Servant
template <class ITERATOR, class TABLE_ENTRY> PortableServer::POA_ptr
TAO_Bindings_Iterator<ITERATOR, TABLE_ENTRY>::_default_POA (CORBA::Environment &/*env*/)
{
return PortableServer::POA::_duplicate (this->poa_.in ());
}
template <class ITERATOR, class TABLE_ENTRY> CORBA::Boolean
TAO_Bindings_Iterator<ITERATOR, TABLE_ENTRY>::next_one (CosNaming::Binding_out b,
CORBA::Environment &ACE_TRY_ENV)
ACE_THROW_SPEC ((CORBA::SystemException))
{
CosNaming::Binding *binding;
// Allocate a binding to be returned (even if there no more
// bindings, we need to allocate an out parameter.)
ACE_NEW_THROW_EX (binding,
CosNaming::Binding,
CORBA::NO_MEMORY ());
ACE_CHECK_RETURN (0);
b = binding;
ACE_GUARD_THROW_EX (ACE_SYNCH_RECURSIVE_MUTEX,
ace_mon,
this->lock_,
CORBA::INTERNAL ());
ACE_CHECK_RETURN (0);
// Check to make sure this object is still valid.
if (this->destroyed_)
ACE_THROW_RETURN (CORBA::OBJECT_NOT_EXIST (), 0);
// If the context we are iterating over has been destroyed,
// self-destruct.
if (context_->destroyed ())
{
destroy (ACE_TRY_ENV);
ACE_CHECK_RETURN (0);
ACE_THROW_RETURN (CORBA::OBJECT_NOT_EXIST (), 0);
}
// If there are no more bindings.
if (hash_iter_->done ())
return 0;
else
{
// Return a binding.
TABLE_ENTRY *hash_entry;
hash_iter_->next (hash_entry);
if (populate_binding (hash_entry, *binding) == 0)
ACE_THROW_RETURN (CORBA::NO_MEMORY (), 0);
hash_iter_->advance ();
return 1;
}
}
template <class ITERATOR, class TABLE_ENTRY> CORBA::Boolean
TAO_Bindings_Iterator<ITERATOR, TABLE_ENTRY>::next_n (CORBA::ULong how_many,
CosNaming::BindingList_out bl,
CORBA::Environment &ACE_TRY_ENV)
ACE_THROW_SPEC ((CORBA::SystemException))
{
// We perform an allocation before obtaining the lock so that an out
// parameter is allocated in case we fail to obtain the lock.
ACE_NEW_THROW_EX (bl,
CosNaming::BindingList (0),
CORBA::NO_MEMORY ());
ACE_CHECK_RETURN (0);
// Obtain the lock.
ACE_GUARD_THROW_EX (ACE_SYNCH_RECURSIVE_MUTEX,
ace_mon,
this->lock_,
CORBA::INTERNAL ());
ACE_CHECK_RETURN (0);
// Check to make sure this object is still valid.
if (this->destroyed_)
ACE_THROW_RETURN (CORBA::OBJECT_NOT_EXIST (), 0);
// If the context we are iterating over has been destroyed,
// self-destruct.
if (context_->destroyed ())
{
destroy (ACE_TRY_ENV);
ACE_CHECK_RETURN (0);
ACE_THROW_RETURN (CORBA::OBJECT_NOT_EXIST (), 0);
}
// Check for illegal parameter values.
if (how_many == 0)
ACE_THROW_RETURN (CORBA::BAD_PARAM (), 0);
// If there are no more bindings...
if (hash_iter_->done ())
return 0;
else
{
// Initially assume that the iterator has the requested number of
// bindings.
bl->length (how_many);
TABLE_ENTRY *hash_entry;
// Iterate and populate the BindingList.
for (CORBA::ULong i = 0; i < how_many; i++)
{
hash_iter_->next (hash_entry);
if (populate_binding (hash_entry, bl[i]) == 0)
ACE_THROW_RETURN (CORBA::NO_MEMORY (), 0);
if (hash_iter_->advance () == 0)
{
// If no more bindings are left, reset length to the actual
// number of bindings populated, and get out of the loop.
bl->length (i + 1);
break;
}
}
return 1;
}
}
template <class ITERATOR, class TABLE_ENTRY> void
TAO_Bindings_Iterator<ITERATOR, TABLE_ENTRY>::destroy (CORBA::Environment &ACE_TRY_ENV)
ACE_THROW_SPEC ((CORBA::SystemException))
{
ACE_GUARD_THROW_EX (ACE_SYNCH_RECURSIVE_MUTEX,
ace_mon,
this->lock_,
CORBA::INTERNAL ());
ACE_CHECK;
// Check to make sure this object is still valid.
if (this->destroyed_)
ACE_THROW (CORBA::OBJECT_NOT_EXIST ());
// Mark the object invalid.
this->destroyed_ = 1;
PortableServer::ObjectId_var id =
poa_->servant_to_id (this,
ACE_TRY_ENV);
ACE_CHECK;
poa_->deactivate_object (id.in (),
ACE_TRY_ENV);
ACE_CHECK;
}
template <class ITERATOR, class TABLE_ENTRY> int
TAO_Bindings_Iterator<ITERATOR, TABLE_ENTRY>::populate_binding (TABLE_ENTRY *hash_entry,
CosNaming::Binding &b)
{
b.binding_type = hash_entry->int_id_.type_;
b.binding_name.length (1);
// Here we perform a check before assignment to make sure
// CORBA::string_dup is not called on 0 pointer, since the spec does
// not say what should happen in that case.
if (hash_entry->ext_id_.id () != 0)
{
b.binding_name[0].id =
hash_entry->ext_id_.id ();
if (b.binding_name[0].id.in () == 0)
return 0;
}
if (hash_entry->ext_id_.kind () != 0)
{
b.binding_name[0].kind =
hash_entry->ext_id_.kind ();
if (b.binding_name[0].kind.in () == 0)
return 0;
}
return 1;
}
#endif /* TAO_BINDINGS_ITERATOR_T_CPP */
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