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//=============================================================================
/**
* @file Connection_Manager.h
*
* $Id$
*
* This is a helper class that allows the senders bind to multiple
* receivers and receivers to bind to senders. It also lets the
* senders and receivers disconnect streams.
*
*
* @author Yamuna Krishnamurthy <yamuna@cs.wustl.edu>
*/
//=============================================================================
#include "orbsvcs/Naming/Naming_Client.h"
#include "orbsvcs/AV/AVStreams_i.h"
#include "orbsvcs/AV/Protocol_Factory.h"
#include "tao/PortableServer/PortableServer.h"
class Endpoint_Addresses
{
public:
ACE_CString sender_addr;
ACE_CString receiver_addr;
};
/**
* @class Connection_Manager
*
* @brief Defines the Connection Manager.
*
* This is a helper class that allows the senders bind to
* multiple receivers and receivers to bind to senders. It also
* lets the senders and receivers disconnect streams.
*/
class Connection_Manager
{
public:
/// Constructor
Connection_Manager (void);
/// Destructor
~Connection_Manager (void);
/// Initialize this class.
int init (CORBA::ORB_ptr orb);
/// Method that binds the sender to the Naming Service and retreives
/// the references of any registered receivers.
void bind_to_receivers (const ACE_CString &sender_name,
AVStreams::MMDevice_ptr sender);
/// Connect to the receivers that we found.
void connect_to_receivers (AVStreams::MMDevice_ptr sender);
/// Bind receiver to the sender.
void bind_to_sender (const ACE_CString &sender_name,
const ACE_CString &receiver_name,
AVStreams::MMDevice_ptr receiver);
/// Connect to the sender that we found.
void connect_to_sender (void);
/// Destroy all streams.
void destroy (void);
/// Destroy streams associated with <flowname>.
void destroy (const ACE_CString &flowname);
/// Add new streamctrl.
void add_streamctrl (const ACE_CString &flowname,
TAO_StreamEndPoint *endpoint);
// Map of receivers.
typedef ACE_Hash_Map_Manager<ACE_CString,
AVStreams::MMDevice_var,
ACE_Null_Mutex>
Receivers;
// Map of protocol objects.
typedef ACE_Hash_Map_Manager<ACE_CString,
TAO_AV_Protocol_Object *,
ACE_Null_Mutex>
Protocol_Objects;
// Map of streamctrl.
typedef ACE_Hash_Map_Manager<ACE_CString,
AVStreams::StreamCtrl_var,
ACE_Null_Mutex>
StreamCtrls;
// Map of flownames and corresponding endpoint addresses
typedef ACE_Hash_Map_Manager<ACE_CString,
Endpoint_Addresses*,
ACE_Null_Mutex>
EP_Addr;
// Map accessors.
Receivers &receivers (void);
Protocol_Objects &protocol_objects (void);
StreamCtrls &streamctrls (void);
void load_ep_addr (const char* file_name);
protected:
void find_receivers (void);
void add_to_receivers (CosNaming::BindingList &binding_list);
/// The Naming Service client.
TAO_Naming_Client naming_client_;
// The maps.
Receivers receivers_;
Protocol_Objects protocol_objects_;
StreamCtrls streamctrls_;
EP_Addr ep_addr_;
// Sender name.
ACE_CString sender_name_;
// Sender device.
AVStreams::MMDevice_var sender_;
// Sender context.
CosNaming::NamingContext_var sender_context_;
// Receiver name.
ACE_CString receiver_name_;
// Receiver device.
AVStreams::MMDevice_var receiver_;
// Receiver context.
CosNaming::NamingContext_var receiver_context_;
};
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