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/* -*- C++ -*- */
//=============================================================================
/**
* @file sender.h
*
* $Id$
*
* This application reads data from a file and sends it to s
* 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/Protocol_Factory.h"
/**
* @class Sender_Callback
*
* @brief Application defined callback object.
*
* AVStreams calls this class when data shows up from a sender.
*/
class Sender_Callback : public TAO_AV_Callback
{
public:
/// Constructor.
Sender_Callback (void);
// 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:
/// Keeping a count of the incoming frames.
int frame_count_;
};
/**
* @class Sender_StreamEndPoint
*
* @brief Defines a sender stream endpoint.
*/
class Sender_StreamEndPoint : public TAO_Client_StreamEndPoint
{
public:
/// Create the application callback and return its handle to
/// AVStreams for further application callbacks.
int get_callback (const char *flowname,
TAO_AV_Callback *&callback);
/// Set protocol object corresponding to the transport protocol
/// chosen.
int set_protocol_object (const char *flowname,
TAO_AV_Protocol_Object *object);
protected:
/// Application callback.
Sender_Callback callback_;
};
typedef TAO_AV_Endpoint_Reactive_Strategy_A
<Sender_StreamEndPoint,
TAO_VDev,
AV_Null_MediaCtrl>
SENDER_ENDPOINT_STRATEGY;
/**
* @class Sender
*
* @brief Sender Application.
*
* Class is responsible for streaming (and pacing) data to a
* receiver.
*/
class Sender
{
public:
/// Constructor
Sender (void);
/// Method to initialize the various data components.
int init (int argc,
ACE_TCHAR *argv[]);
/// Method to pace and send data from a file.
int pace_data (void);
/// Set the protocol object corresponding to the transport protocol chosen.
void protocol_object (TAO_AV_Protocol_Object *protocol_object);
int eof (void);
void shutdown (void);
private:
/// Method to parse the command line arguments.
int parse_args (int argc, ACE_TCHAR *argv[]);
/// Method that binds the sender to the receiver.
int bind_to_receiver (void);
/// The endpoint strategy used by the sender.
SENDER_ENDPOINT_STRATEGY endpoint_strategy_;
/// The receiver MMDevice that the sender connects to.
AVStreams::MMDevice_var receiver_mmdevice_;
/// The sender MMDevice.
TAO_MMDevice *sender_mmdevice_;
/// Stream controller
TAO_StreamCtrl *streamctrl_;
/// Number of frames sent.
int frame_count_;
/// File from which data is read.
ACE_CString filename_;
/// The Naming Service client.
TAO_Naming_Client naming_client_;
/// File handle of the file read from.
FILE *input_file_;
/// Selected protocol - default is UDP
ACE_CString protocol_;
/// Rate at which the data will be sent.
int frame_rate_;
/// Message block into which data is read from a file and then sent.
ACE_Message_Block mb_;
/// Protocol object corresponding to the transport protocol selected.
TAO_AV_Protocol_Object *protocol_object_;
int eof_;
};
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