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#include "tao/ORB_Table.h"
#include "tao/ORB_Core.h"
#include "tao/TAO_Singleton.h"
#if !defined (__ACE_INLINE__)
# include "tao/ORB_Table.inl"
#endif /* ! __ACE_INLINE__ */
#include "ace/SString.h"
#include "ace/OS_NS_string.h"
ACE_RCSID (tao,
ORB_Table,
"$Id$")
// ****************************************************************
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO::ORB_Table::ORB_Table (void)
: lock_ (),
first_orb_not_default_ (false),
table_ (TAO_DEFAULT_ORB_TABLE_SIZE),
first_orb_ (0),
orbs_ (0),
num_orbs_ (0)
{
}
int
TAO::ORB_Table::bind (char const * orb_id,
TAO_ORB_Core * orb_core)
{
// Make sure that the supplied ORB core pointer is valid,
// i.e. non-zero.
if (orb_id == 0 || orb_core == 0)
{
errno = EINVAL;
return -1;
};
value_type const value =
std::make_pair (key_type (orb_id), data_type (orb_core));
ACE_GUARD_RETURN (TAO_SYNCH_MUTEX,
guard,
this->lock_,
-1);
std::pair<iterator, bool> result = this->table_.insert (value);
if (result.second)
{
// This is not the first ORB, but if the current default ORB
// decided not to be the default and there is more than one ORB
// then set this ORB to be the default.
if (this->first_orb_ != 0
&& this->first_orb_not_default_)
{
this->first_orb_ = orb_core;
this->first_orb_not_default_ = false;
}
// Set the "first_orb_" member for the first given ORB Core
// that was successfully added to the ORB table.
if (this->first_orb_ == 0)
{
this->first_orb_ = orb_core;
}
}
return (result.second ? 0 : 1);
}
TAO_ORB_Core *
TAO::ORB_Table::find (char const * orb_id)
{
TAO_ORB_Core * orb_core = 0;
ACE_GUARD_RETURN (TAO_SYNCH_MUTEX,
guard,
this->lock_,
0);
iterator const i = this->table_.find (Table::key_type (orb_id));
// Maintain ownership of the ORB_Core.
if (i != this->end ())
{
orb_core = (*i).second.core ();
(void) orb_core->_incr_refcnt ();
}
return orb_core;
}
int
TAO::ORB_Table::unbind (const char *orb_id)
{
ACE_GUARD_RETURN (TAO_SYNCH_MUTEX,
guard,
this->lock_,
-1);
iterator const result = this->table_.find (key_type (orb_id));
if (result != this->end ())
{
TAO::ORB_Core_Ref_Counter oc ((*result).second);
this->table_.erase (result);
if (oc.core () == this->first_orb_)
{
if (!this->table_.empty ())
{
this->first_orb_ = (*this->begin ()).second.core ();
}
else
{
this->first_orb_ = 0;
}
}
}
return 0;
}
void
TAO::ORB_Table::set_default (char const * orb_id)
{
ACE_GUARD (TAO_SYNCH_MUTEX,
guard,
this->lock_);
iterator const i = this->table_.find (key_type (orb_id));
if (i != this->end ())
this->first_orb_ = (*i).second.core ();
}
void
TAO::ORB_Table::not_default (char const * orb_id)
{
// @@ This method now works for restricted cases. Should work on
// generalizing it. It works if the first ORB that is registered
// decides to not want be the default ORB. Should generalize it
// to handle all cases.
ACE_GUARD (TAO_SYNCH_MUTEX,
guard,
this->lock_);
// Check if there is a default ORB already and if it is *not* the
// same as the orb_id thats passed in. We don't have to do
// anything.
if (this->first_orb_ != 0)
{
if (ACE_OS::strcmp (this->first_orb_->orbid (), orb_id) != 0)
{
// There is another default ORB. No need to change anything
return;
}
else
{
// The ORB with orbid 'orb_id' is the default now. We need
// to change it.
this->first_orb_not_default_ = true;
}
}
}
TAO::ORB_Table *
TAO::ORB_Table::instance (void)
{
return TAO_Singleton<TAO::ORB_Table, TAO_SYNCH_MUTEX>::instance ();
}
#if defined (ACE_HAS_EXPLICIT_STATIC_TEMPLATE_MEMBER_INSTANTIATION)
template TAO_Singleton<TAO::ORB_Table,TAO_SYNCH_MUTEX> * TAO_Singleton<TAO::ORB_Table,TAO_SYNCH_MUTEX>::singleton_;
#endif /* ACE_HAS_EXPLICIT_STATIC_TEMPLATE_MEMBER_INSTANTIATION */
TAO_END_VERSIONED_NAMESPACE_DECL
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