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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// TAO/orbsvcs/tests/AVStreams/Component_Switching
//
// = FILENAME
// sender.h
//
// = DESCRIPTION
// This application reads data from a file and sends it to s
// receiver.
//
// = AUTHOR
// Yamuna Krishnamurthy <yamuna@cs.wustl.edu>
//
// ============================================================================
#include "Connection_Manager.h"
#include "orbsvcs/AV/AVStreams_i.h"
#include "orbsvcs/AV/Endpoint_Strategy.h"
#include "orbsvcs/AV/Protocol_Factory.h"
class Signal_Handler : public ACE_Event_Handler
{
// TITLE
// This class Handles the SIGINT signal through the Reactor.
// Useful to gracefully release the process
public:
Signal_Handler (void);
int handle_signal(int signum, siginfo_t*,ucontext_t*);
// Override this method to implement graceful shutdown.
};
class Sender_Callback : public TAO_AV_Callback
{
// = TITLE
// Defines a class for the sender application callback.
//
// = DESCRIPTION
// This class overides the methods of the TAO_AV_Callback so the
// AVStreams can make upcalls to the application.
public:
int handle_destroy (void);
/// Called when the sender has finished reading the file and wants
/// to close down the connection. Also called when the distributer
/// tears down the connection when it switches to a new sender.
ACE_CString &flowname (void);
void flowname (const ACE_CString &flowname);
/// Accessor methods for the flowname of the callback
private:
ACE_CString flowname_;
/// Flowname of the callback.
};
class 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.
CORBA::Boolean handle_preconnect (AVStreams::flowSpec &flowspec);
/// Perform application specific actions before accepting new
/// connections.
protected:
Sender_Callback callback_;
/// Application callback.
};
typedef TAO_AV_Endpoint_Reactive_Strategy_A
<Sender_StreamEndPoint,
TAO_VDev,
AV_Null_MediaCtrl>
SENDER_ENDPOINT_STRATEGY;
class Sender
{
/// = TITLE
// Sender Application.
//
// = DESCRIPTION
// Class is responsible for streaming (and pacing) data to a
// receiver.
public:
Sender (void);
/// Constructor
~Sender (void);
/// Destructor
void shut_down (ACE_ENV_SINGLE_ARG_DECL_NOT_USED);
int init (int argc,
char **argv
ACE_ENV_ARG_DECL_NOT_USED);
/// Method to initialize the various data components.
int pace_data (ACE_ENV_SINGLE_ARG_DECL_NOT_USED);
/// Method to pace and send data from a file.
Connection_Manager &connection_manager (void);
/// Accessor to the connection manager.
private:
int parse_args (int argc, char **argv);
/// Method to parse the command line arguments.
SENDER_ENDPOINT_STRATEGY endpoint_strategy_;
/// The endpoint strategy used by the sender.
TAO_MMDevice *sender_mmdevice_;
/// The sender MMDevice.
int frame_count_;
/// Number of frames sent.
ACE_CString filename_;
/// File from which data is read.
FILE *input_file_;
/// File handle of the file read from.
double frame_rate_;
/// Rate at which the data will be sent.
ACE_Message_Block mb_;
/// Message block into which data is read from a file and then sent.
ACE_CString sender_name_;
/// Name of this sender.
Connection_Manager connection_manager_;
/// Connection manager.
// int stream_count_;
/// Teh count of the number of streams that are active
Signal_Handler signal_handler_;
/// Reference to the signal handler.
};
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