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#include "tao/Valuetype/ValueFactory_Map.h"
#include "tao/Valuetype/ValueFactory.h"
#include "tao/CORBA_String.h"
#include "tao/TAO_Singleton.h"
ACE_RCSID (Valuetype,
ValueFactory_Map,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_ValueFactory_Map::TAO_ValueFactory_Map (void)
: map_ (TAO_DEFAULT_VALUE_FACTORY_TABLE_SIZE)
{
}
TAO_ValueFactory_Map::~TAO_ValueFactory_Map (void)
{
// Initialize an iterator. We need to go thru each entry and free
// up storage allocated to hold the external ids and invoke
// _remove_ref () on the internal ids.
FACTORY_MAP_MANAGER::ITERATOR iterator (this->map_);
for (FACTORY_MAP_MANAGER::ENTRY *entry = 0;
iterator.next (entry) != 0;
iterator.advance ())
{
// We had allocated memory and stored the string. So we free the
// memory.
CORBA::string_free ((char *) entry->ext_id_);
entry->ext_id_ = 0;
entry->int_id_->_remove_ref ();
entry->int_id_ = 0;
}
}
// %! Thread issues
int
TAO_ValueFactory_Map::rebind (const char *repo_id,
CORBA::ValueFactory &factory)
{
// ACE_READ_GUARD_RETURN (TAO_SYNCH_RW_MUTEX, guard, map_->mutex(),-1);
// --- but must be recursive
const char *prev_repo_id = 0;
CORBA::ValueFactory prev_factory = 0;
int ret = 0;
ret = this->map_.rebind (CORBA::string_dup (repo_id),
factory,
prev_repo_id,
prev_factory);
if (ret > -1) // ok, no error
{
factory->_add_ref (); // The map owns one reference.
if (ret == 1) // there was a previous factory
{
factory = prev_factory;
CORBA::string_free (const_cast<char*> (prev_repo_id));
}
}
return ret;
}
int
TAO_ValueFactory_Map::unbind (const char *repo_id,
CORBA::ValueFactory &factory)
{
FACTORY_MAP_MANAGER::ENTRY *prev_entry = 0;
int ret = 0;
ret = this->map_.find (repo_id,
prev_entry);
if (ret == 0) // there was a matching factory
{
// set factory to the previous factory,
factory = prev_entry->int_id_;
char *temp = const_cast<char *> (prev_entry->ext_id_);
ret = this->map_.unbind (prev_entry);
if (ret == 0)
{
CORBA::string_free (temp);
}
}
return ret;
}
// %! perhaps inline
int
TAO_ValueFactory_Map::find (const char *repo_id,
CORBA::ValueFactory &factory)
{
int ret = 0;
ret = this->map_.find (repo_id,
factory);
// %! this must be guarded to be atomic !!!!!!!!!!!!!!!!!!
if (ret > -1)
{
factory->_add_ref (); // The caller gets one reference as gift.
}
return ret;
}
TAO_ValueFactory_Map *
TAO_ValueFactory_Map::instance (void)
{
// Hide the template instantiation to prevent multiple instances
// from being created.
return
TAO_Singleton<TAO_ValueFactory_Map, TAO_SYNCH_MUTEX>::instance ();
}
TAO_END_VERSIONED_NAMESPACE_DECL
#if defined (ACE_HAS_EXPLICIT_STATIC_TEMPLATE_MEMBER_INSTANTIATION)
template TAO_Singleton<TAO_ValueFactory_Map, TAO_SYNCH_MUTEX> * TAO_Singleton<TAO_ValueFactory_Map, TAO_SYNCH_MUTEX>::singleton_;
#endif /* ACE_HAS_EXPLICIT_STATIC_TEMPLATE_MEMBER_INSTANTIATION */
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