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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// TAO/orbsvcs/tests/AVStreams/Simple_Three_Stage
//
// = FILENAME
// distributer.h
//
// = DESCRIPTION
// Process to receive data from the sender and send it to the
// receiver.
//
// = AUTHOR
// Yamuna Krishnamurthy <yamuna@cs.wustl.edu>
//
// ============================================================================
#include "orbsvcs/Naming/Naming_Client.h"
#include "orbsvcs/AV/AVStreams_i.h"
#include "orbsvcs/AV/Endpoint_Strategy.h"
#include "orbsvcs/AV/Policy.h"
class Distributer_Receiver_Callback : public TAO_AV_Callback
{
// = TITLE
// Application defined callback object.
//
// = DESCRIPTION
// AVStreams calls this class when data shows up from a sender.
public:
Distributer_Receiver_Callback (void);
// Constructor.
// Method that is called when there is data to be received from a
// sender.
int receive_frame (ACE_Message_Block *frame,
TAO_AV_frame_info *frame_info,
const ACE_Addr &peer_address);
// Called when the sender is done sending data and wants to close
// down the connection.
int handle_destroy (void);
private:
int frame_count_;
// Count of the frames passing through us.
};
class Distributer_Receiver_StreamEndPoint : public TAO_Server_StreamEndPoint
{
// = TITLE
// Application defined stream endpoint object.
//
// = DESCRIPTION
// AVStreams calls this class during connection setup.
public:
// Create a receiver application callback.
int get_callback (const char *flowname,
TAO_AV_Callback *&callback);
private:
Distributer_Receiver_Callback callback_;
// Receiver application callback.
};
class Distributer_Sender_StreamEndPoint : public TAO_Client_StreamEndPoint
{
// = TITLE
// Defines a sender stream endpoint.
public:
int get_callback (const char *flowname,
TAO_AV_Callback *&callback);
// Create the application callback and return its handle to
// AVStreams for further application callbacks.
int set_protocol_object (const char *flowname,
TAO_AV_Protocol_Object *object);
// Set protocol object corresponding to the transport protocol
// chosen.
protected:
TAO_AV_Callback callback_;
// Application callback.
};
typedef TAO_AV_Endpoint_Reactive_Strategy_A
<Distributer_Sender_StreamEndPoint,
TAO_VDev,
AV_Null_MediaCtrl>
SENDER_ENDPOINT_STRATEGY;
typedef TAO_AV_Endpoint_Reactive_Strategy_B
<Distributer_Receiver_StreamEndPoint,
TAO_VDev,
AV_Null_MediaCtrl>
RECEIVER_ENDPOINT_STRATEGY;
class Distributer
{
// = TITLE
// Distributer Application.
//
// = DESCRIPTION
// The distributer is the intermediate receiver that receives
// data from the sender and forwards to a receiver.
public:
Distributer (void);
// Constructor
~Distributer (void);
// Destructor.
int init (int argc,
char **argv
ACE_ENV_ARG_DECL_NOT_USED);
// Initialize data components.
void bind_to_mmdevice (AVStreams::MMDevice_ptr &mmdevice,
const ACE_CString &mmdevice_name
ACE_ENV_ARG_DECL);
// Resolve the reference of the mmdevice from the naming service.
TAO_StreamCtrl *receiver_streamctrl (void);
// Get the stream control of the receiver
int sender_protocol_object (TAO_AV_Protocol_Object *object);
TAO_AV_Protocol_Object *sender_protocol_object (void);
// Accessor methods to set/get our sender protocol object
// Flag to know when we are done.
int done (void) const;
void done (int);
protected:
TAO_Naming_Client naming_client_;
// The Naming Service client.
SENDER_ENDPOINT_STRATEGY sender_endpoint_strategy_;
// The sender endpoint strategy.
RECEIVER_ENDPOINT_STRATEGY receiver_endpoint_strategy_;
// The receiver endpoint strategy.
TAO_MMDevice* distributer_receiver_mmdevice_;
// The distributer receiver multimedia device
TAO_MMDevice* distributer_sender_mmdevice_;
// The distributer receiver multimedia device
AVStreams::MMDevice_var receiver_mmdevice_;
// The receiver MMDevice.
AVStreams::MMDevice_var sender_mmdevice_;
// The sender MMDevice.
TAO_AV_Protocol_Object *sender_protocol_object_;
// The sender protocol object
TAO_StreamCtrl* receiver_streamctrl_;
// Stream controller for the receivers
ACE_CString protocol_;
// Selected protocol - default is UDP
int done_;
// Flag to know when we are done.
};
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