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// $Id$
#include "sender.h"
#include "tao/debug.h"
#include "ace/Get_Opt.h"
#include "ace/High_Res_Timer.h"
// Create a singleton instance of the Sender.
// An Unmanaged_Singleton is used to avoid static object destruction
// order related problems since the underlying singleton object
// contains references to static TypeCodes.
typedef ACE_Unmanaged_Singleton<Sender, ACE_Null_Mutex> SENDER;
int
Sender_StreamEndPoint::get_callback (const char *,
TAO_AV_Callback *&callback)
{
// Create and return the client application callback and return to the AVStreams
// for further upcalls.
callback = &this->callback_;
return 0;
}
int
Sender_StreamEndPoint::set_protocol_object (const char *flowname,
TAO_AV_Protocol_Object *object)
{
Connection_Manager &connection_manager =
SENDER::instance ()->connection_manager ();
// Add to the map of protocol objects.
connection_manager.protocol_objects ().bind (flowname,
object);
// Store the related streamctrl.
connection_manager.add_streamctrl (flowname,
this);
return 0;
}
Sender::Sender (void)
: sender_mmdevice_ (0),
frame_count_ (0),
filename_ ("input"),
input_file_ (0),
addr_file_ ("addr_file"),
frame_rate_ (10.0),
mb_ (BUFSIZ),
sender_name_ ("sender")
{
}
int
Sender::parse_args (int argc,
char **argv)
{
// Parse command line arguments
ACE_Get_Opt opts (argc, argv, "s:f:r:da:");
int c;
while ((c= opts ()) != -1)
{
switch (c)
{
case 'a':
this->addr_file_ = opts.opt_arg ();
break;
case 'f':
this->filename_ = opts.opt_arg ();
break;
case 'r':
this->frame_rate_ = (double)ACE_OS::atoi (opts.opt_arg ());
break;
case 's':
this->sender_name_ = opts.opt_arg ();
break;
case 'd':
TAO_debug_level++;
break;
default:
ACE_DEBUG ((LM_DEBUG, "Unknown Option\n"));
return -1;
}
}
return 0;
}
int
Sender::init (int argc,
char **argv)
{
// Initialize the endpoint strategy with the orb and poa.
int result =
this->endpoint_strategy_.init (TAO_AV_CORE::instance ()->orb (),
TAO_AV_CORE::instance ()->poa ());
if (result != 0)
return result;
// Initialize the connection manager.
result =
this->connection_manager_.init (TAO_AV_CORE::instance ()->orb ());
if (result != 0)
return result;
// Parse the command line arguments
result =
this->parse_args (argc,
argv);
if (result != 0)
return result;
this->connection_manager_.load_ep_addr (this->addr_file_.c_str ());
// Open file to read.
this->input_file_ =
ACE_OS::fopen (this->filename_.c_str (),
"r");
if (this->input_file_ == 0)
ACE_ERROR_RETURN ((LM_DEBUG,
"Cannot open input file %s\n",
this->filename_.c_str ()),
-1);
else
ACE_DEBUG ((LM_DEBUG,
"File opened successfully\n"));
// Register the sender mmdevice object with the ORB
ACE_NEW_RETURN (this->sender_mmdevice_,
TAO_MMDevice (&this->endpoint_strategy_),
-1);
// Servant Reference Counting to manage lifetime
PortableServer::ServantBase_var safe_mmdevice =
this->sender_mmdevice_;
AVStreams::MMDevice_var mmdevice =
this->sender_mmdevice_->_this ();
// Register the object reference with the Naming Service and bind to
// the receivers
this->connection_manager_.bind_to_receivers (this->sender_name_,
mmdevice.in ());
// Connect to the receivers
this->connection_manager_.connect_to_receivers (mmdevice.in ());
return 0;
}
// Method to send data at the specified rate
int
Sender::pace_data (void)
{
// The time that should lapse between two consecutive frames sent.
ACE_Time_Value inter_frame_time;
// The time between two consecutive frames.
inter_frame_time.set (1.0 / ((double) this->frame_rate_));
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
"Frame Rate = %d / second\n"
"Inter Frame Time = %d (msec)\n",
this->frame_rate_,
inter_frame_time.msec ()));
try
{
// The time taken for sending a frame and preparing for the next frame
ACE_High_Res_Timer elapsed_timer;
// Continue to send data till the file is read to the end.
while (1)
{
// Read from the file into a message block.
int n = ACE_OS::fread (this->mb_.wr_ptr (),
1,
this->mb_.size (),
this->input_file_);
if (n < 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Sender::pace_data fread failed\n"),
-1);
if (n == 0)
{
// At end of file break the loop and end the sender.
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,"Handle_Start:End of file\n"));
break;
}
this->mb_.wr_ptr (n);
if (this->frame_count_ > 1)
{
//
// Second frame and beyond
//
// Stop the timer that was started just before the previous frame was sent.
elapsed_timer.stop ();
// Get the time elapsed after sending the previous frame.
ACE_Time_Value elapsed_time;
elapsed_timer.elapsed_time (elapsed_time);
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
"Elapsed Time = %d\n",
elapsed_time.msec ()));
// Check to see if the inter frame time has elapsed.
if (elapsed_time < inter_frame_time)
{
// Inter frame time has not elapsed.
// Calculate the time to wait before the next frame needs to be sent.
ACE_Time_Value wait_time (inter_frame_time - elapsed_time);
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
"Wait Time = %d\n",
wait_time.msec ()));
// Run the orb for the wait time so the sender can
// continue other orb requests.
TAO_AV_CORE::instance ()->orb ()->run (wait_time);
}
}
// Start timer before sending the frame.
elapsed_timer.start ();
Connection_Manager::Protocol_Objects &protocol_objects =
this->connection_manager_.protocol_objects ();
// Send frame to all receivers.
for (Connection_Manager::Protocol_Objects::iterator iterator = protocol_objects.begin ();
iterator != protocol_objects.end ();
++iterator)
{
int result =
(*iterator).int_id_->send_frame (&this->mb_);
if (result < 0)
ACE_ERROR_RETURN ((LM_ERROR,
"send failed:%p",
"Sender::pace_data send\n"),
-1);
}
ACE_DEBUG ((LM_DEBUG,
"Sender::pace_data frame %d was sent succesfully\n",
++this->frame_count_));
// Reset the message block.
this->mb_.reset ();
} // end while
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Sender::pace_data Failed\n");
return -1;
}
return 0;
}
Connection_Manager &
Sender::connection_manager (void)
{
return this->connection_manager_;
}
int
main (int argc,
char **argv)
{
try
{
CORBA::ORB_var orb = CORBA::ORB_init (argc,
argv,
0);
CORBA::Object_var obj
= orb->resolve_initial_references ("RootPOA");
//Get the POA_var object from Object_var
PortableServer::POA_var root_poa
= PortableServer::POA::_narrow (obj.in ());
PortableServer::POAManager_var mgr
= root_poa->the_POAManager ();
mgr->activate ();
// Initialize the AV Stream components.
TAO_AV_CORE::instance ()->init (orb.in (),
root_poa.in ());
// Initialize the Client.
int result = 0;
result = SENDER::instance ()->init (argc,
argv);
if (result < 0)
ACE_ERROR_RETURN ((LM_ERROR,
"client::init failed\n"), -1);
SENDER::instance ()->pace_data ();
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Sender Failed\n");
return -1;
}
SENDER::close (); // Explicitly finalize the Unmanaged_Singleton.
return 0;
}
#if defined (ACE_HAS_EXPLICIT_STATIC_TEMPLATE_MEMBER_INSTANTIATION)
template ACE_Unmanaged_Singleton<Sender, ACE_Null_Mutex> *ACE_Unmanaged_Singleton<Sender, ACE_Null_Mutex>::singleton_;
#endif /* ACE_HAS_EXPLICIT_STATIC_TEMPLATE_MEMBER_INSTANTIATION */
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