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| Current Path : /proc/self/root/usr/include/CLAM/ |
| Current File : //proc/self/root/usr/include/CLAM/OutPort.hxx |
/*
* Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
* UNIVERSITAT POMPEU FABRA
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __OutPort_hxx__
#define __OutPort_hxx__
#include "WritingRegion.hxx"
#include <typeinfo>
#include <list>
#include <string>
#include "InPort.hxx"
#include "InPortPublisher.hxx"
namespace CLAM
{
class Processing;
class OutPortBase
{
public:
typedef std::list<InPortBase*> InPortsList;
OutPortBase( const std::string & name = "unnamed out port", Processing * proc = 0 );
virtual ~OutPortBase();
const std::string & GetName();
Processing * GetProcessing();
InPortsList::iterator BeginVisuallyConnectedInPorts();
InPortsList::iterator EndVisuallyConnectedInPorts();
virtual void ConnectToIn(InPortBase& in) = 0;
virtual void DisconnectFromIn(InPortBase & in) = 0;
virtual void DisconnectFromAll()=0;
virtual bool IsVisuallyConnectedTo(InPortBase & in) = 0;
virtual bool IsConnectableTo(InPortBase & ) = 0;
virtual bool CanProduce()=0;
virtual int GetSize()=0;
virtual void SetSize(int newSize)=0;
virtual int GetHop()=0;
virtual void SetHop(int newHop)=0;
bool HasConnections(){ return mVisuallyConnectedPorts.size()!=0; }
virtual void CenterEvenRegions()=0;
void SetPublisher( OutPortBase& publisher);
void UnsetPublisher();
virtual bool IsPublisher() const { return false; }
virtual void UnpublishOutPort() =0;
virtual const std::type_info & GetTypeId() const = 0;
protected:
InPortsList mVisuallyConnectedPorts;
std::string mName;
Processing * mProcessing;
OutPortBase* mPublisher;
};
template<typename Token>
class OutPort : public OutPortBase
{
typedef OutPort<Token> ProperOutPort;
typedef InPort<Token> ProperInPort;
typedef InPortPublisher<Token> ProperInPortPublisher;
typedef WritingRegion<Token> ProperWritingRegion;
public:
OutPort( const std::string & name = "unnamed out port", Processing * proc = 0 );
virtual ~OutPort();
void DisconnectFromAll();
void ConnectToIn( InPortBase& in);
void ConnectToConcreteIn(InPort<Token>& in);
void DisconnectFromIn( InPortBase& in);
void DisconnectFromConcreteIn(InPort<Token>& in);
bool IsConnectableTo(InPortBase & in);
bool IsVisuallyConnectedTo(InPortBase & in);
bool IsPhysicallyConnectedToIn(InPort<Token>& );
InPortPublisher<Token>* GetPublisherContaining(InPort<Token>&);
Token & GetData(int offset=0);
void SetSize( int newSize );
int GetSize();
int GetHop();
void SetHop( int hop );
void Produce();
bool CanProduce();
void CenterEvenRegions();
void UnpublishOutPort() {}
virtual const std::type_info & GetTypeId() const
{
return typeid(Token);
};
Token & GetLastWrittenData( int offset = 0 );
protected:
bool ConnectToPublisher( ProperInPortPublisher & in );
bool TryDisconnectFromPublisher( InPortBase & in );
bool TryDisconnectFromConcreteIn( InPortBase & in );
ProperWritingRegion mRegion;
};
template<class Token>
OutPort<Token>::OutPort( const std::string & name, Processing * proc )
: OutPortBase(name,proc)
{
}
template<class Token>
void OutPort<Token>::DisconnectFromAll()
{
InPortsList::iterator it = mVisuallyConnectedPorts.begin();
for( it=BeginVisuallyConnectedInPorts(); it!=EndVisuallyConnectedInPorts(); it++ )
{
(*it)->UnAttachRegion();
}
mVisuallyConnectedPorts.clear();
}
template<class Token>
OutPort<Token>::~OutPort()
{
DisconnectFromAll();
}
template<class Token>
bool OutPort<Token>::ConnectToPublisher( InPortPublisher<Token> & in )
{
InPortPublisher<Token> * publisher = ∈
mVisuallyConnectedPorts.push_back( &in );
typename InPortPublisher<Token>::ProperInPortsList::iterator it;
for( it=publisher->BeginPublishedInPortsList(); it!=publisher->EndPublishedInPortsList(); it++)
(*it)->AttachRegionToOutPort(this, mRegion );
in.SetVisuallyConnectedOutPort(this);
return true;
}
template<class Token>
void OutPort<Token>::ConnectToIn( InPortBase& in)
{
CLAM_ASSERT( IsConnectableTo(in),
"OutPort<Token>::connectToIn coudn't connect to inPort "
"because was not templatized by the same Token type as outPort" );
if (in.IsPublisher())
ConnectToPublisher( static_cast<ProperInPortPublisher&>(in) );
else
ConnectToConcreteIn( static_cast<ProperInPort&>(in) );
}
template<class Token>
void OutPort<Token>::ConnectToConcreteIn(InPort<Token>& in)
{
CLAM_ASSERT( !in.GetVisuallyConnectedOutPort(), "OutPort<Token>::ConnectToConcreteIn - Trying to connect an inport "
"already connected to another out port" );
CLAM_ASSERT( !IsVisuallyConnectedTo(in), "OutPort<Token>::ConnectToConcreteIn - Trying to connect an in port "
"already connected to this out port" );
mVisuallyConnectedPorts.push_back(&in);
in.AttachRegionToOutPort(this, mRegion );
}
template<class Token>
void OutPort<Token>::DisconnectFromIn( InPortBase& in)
{
CLAM_ASSERT ( IsConnectableTo(in),
"OutPort<Token>::DisconnectFromIn coudn't discconnect from inPort "
"because was not templatized by the same Token type as outPort" );
if (in.IsPublisher())
TryDisconnectFromPublisher( in );
else
TryDisconnectFromConcreteIn( in );
}
template<class Token>
bool OutPort<Token>::TryDisconnectFromConcreteIn( InPortBase & in )
{
CLAM_ASSERT( IsConnectableTo(in), "TryDisconnectFromConcreteIn: expect the same token template");
ProperInPort * concreteIn = static_cast<ProperInPort*>(&in);
DisconnectFromConcreteIn( *concreteIn );
return true;
}
template<class Token>
bool OutPort<Token>::TryDisconnectFromPublisher( InPortBase & in )
{
CLAM_ASSERT( IsConnectableTo(in), "TryDisconnectFromPublisher: expect the same token template");
InPortPublisher<Token> *publisher = static_cast<InPortPublisher<Token> *>(&in);
mVisuallyConnectedPorts.remove( &in );
typename InPortPublisher<Token>::ProperInPortsList::iterator it;
for( it=publisher->BeginPublishedInPortsList(); it!=publisher->EndPublishedInPortsList(); it++)
{
if( (*it)->GetVisuallyConnectedOutPort())
(*it)->UnAttachRegion();
}
return true;
}
template<class Token>
void OutPort<Token>::DisconnectFromConcreteIn(InPort<Token>& in)
{
CLAM_ASSERT( IsVisuallyConnectedTo(in) || IsPhysicallyConnectedToIn(in),
"OutPort::DisconnectFromConcreteIn() in port is not directly neither physically connected" );
if (IsVisuallyConnectedTo(in) )
{
// is directly connected
mVisuallyConnectedPorts.remove(&in);
}
else // then IsPhysicallyConnected()
{
InPortPublisher<Token> *pub = GetPublisherContaining(in);
CLAM_DEBUG_ASSERT(0!=pub, "in port should be published");
pub->UnPublishInPort(in);
}
in.UnAttachRegion();
}
template<class Token>
Token & OutPort<Token>::GetData(int offset )
{
return mRegion[offset];
}
template<class Token>
void OutPort<Token>::SetSize( int newSize )
{
mRegion.Size( newSize );
}
template<class Token>
int OutPort<Token>::GetSize()
{
return mRegion.Size();
}
template<class Token>
int OutPort<Token>::GetHop()
{
return mRegion.Hop();
}
template<class Token>
void OutPort<Token>::SetHop( int hop )
{
mRegion.Hop(hop);
}
template<class Token>
void OutPort<Token>::Produce()
{
mRegion.Produce();
}
template<class Token>
bool OutPort<Token>::CanProduce()
{
return mRegion.CanProduce();
}
template<class Token>
bool OutPort<Token>::IsConnectableTo(InPortBase & in)
{
return SameType(in.GetTypeId(), GetTypeId());
}
template<class Token>
bool OutPort<Token>::IsPhysicallyConnectedToIn(InPort<Token>& in)
{
if (IsVisuallyConnectedTo(in))
return true;
return ( 0!=GetPublisherContaining(in) );
}
template<class Token>
InPortPublisher<Token>* OutPort<Token>::GetPublisherContaining(InPort<Token>& in)
{
InPortsList::iterator it;
for( it=mVisuallyConnectedPorts.begin(); it!=mVisuallyConnectedPorts.end(); it++ )
if ( (*it)->IsPublisherOf(in) )
return static_cast<InPortPublisher<Token> *>(*it);
return 0;
}
template<class Token>
bool OutPort<Token>::IsVisuallyConnectedTo(InPortBase & in)
{
InPortsList::iterator it;
for( it=mVisuallyConnectedPorts.begin(); it!=mVisuallyConnectedPorts.end(); it++ )
if(*it == &in) return true;
return false;
}
template<class Token>
void OutPort<Token>::CenterEvenRegions()
{
mRegion.CenterEvenRegions();
}
template<class Token>
Token & OutPort<Token>::GetLastWrittenData( int offset )
{
CLAM_DEBUG_ASSERT( 0 <= offset, "OutPort<Token>::GetLastWrittenData - Index under bounds" );
CLAM_DEBUG_ASSERT( offset <= GetSize(), "OutPort<Token>::GetLastWrittenData - Index over bounds" );
return mRegion.GetLastWrittenData( offset );
}
} // namespace CLAM
#endif // __OutPort_hxx__
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