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#include "sender.h"
#include "tao/debug.h"
#include "ace/Get_Opt.h"
#include "ace/High_Res_Timer.h"
static u_long peak_bandwidth = 18400;
typedef ACE_Unmanaged_Singleton<Sender, ACE_Null_Mutex> SENDER;
// Create a singleton instance of the Sender.
// The time that should lapse between two consecutive frames sent.
ACE_Time_Value inter_frame_time;
CORBA::Boolean
Sender_StreamEndPoint::modify_QoS (AVStreams::streamQoS &new_qos,
const AVStreams::flowSpec &the_flows)
{
ACE_DEBUG ((LM_DEBUG,
"Sender_StreamEndPoint::modify_QoS\n"));
int result = this->change_qos (new_qos, the_flows);
if (result != 0)
return 0;
return 1;
}
int
Sender_StreamEndPoint::get_callback (const char *,
TAO_AV_Callback *&callback)
{
// Create and return the sender application callback to AVStreams
// for further upcalls.
callback = &this->callback_;
TAO_Negotiator *negotiator;
ACE_NEW_RETURN (negotiator,
TAO_Negotiator,
-1);
AVStreams::Negotiator_var negotiator_obj =
negotiator->_this ();
this->set_negotiator (negotiator_obj.in ());
return 0;
}
int
Sender_StreamEndPoint::set_protocol_object (const char *,
TAO_AV_Protocol_Object *object)
{
// Set the sender protocol object corresponding to the transport
// protocol selected.
SENDER::instance ()->protocol_object (object);
return 0;
}
Sender::Sender (void)
: sender_mmdevice_ (0),
streamctrl_ (0),
frame_count_ (0),
filename_ ("input"),
input_file_ (0),
protocol_ ("UDP"),
frame_rate_ (1.0),
mb_ (BUFSIZ),
address_ (0),
peer_addr_ (0)
{
}
void
Sender::protocol_object (TAO_AV_Protocol_Object *object)
{
// Set the sender protocol object corresponding to the transport
// protocol selected.
this->protocol_object_ = object;
}
int
Sender::parse_args (int argc,
ACE_TCHAR *argv[])
{
// Parse command line arguments
ACE_Get_Opt opts (argc, argv, ACE_TEXT("f:p:r:l:a:d"));
int c;
while ((c= opts ()) != -1)
{
switch (c)
{
case 'f':
this->filename_ = ACE_TEXT_ALWAYS_CHAR (opts.opt_arg ());
break;
case 'p':
this->protocol_ = ACE_TEXT_ALWAYS_CHAR (opts.opt_arg ());
#ifdef ACE_HAS_RAPI
if (this->protocol_ != ACE_CString ("QoS_UDP"))
ACE_ERROR_RETURN ((LM_ERROR,
"When rapi=1 protocol must be QoS_UDP\n"),
-1);
#else
if (this->protocol_ == ACE_CString ("QoS_UDP"))
ACE_ERROR_RETURN ((LM_ERROR,
"When rapi=0 protocol must not be QoS_UDP\n"),
-1);
#endif //ACE_HAS_RAPI
break;
case 'r':
this->frame_rate_ = (double)ACE_OS::atoi (opts.opt_arg ());
break;
case 'd':
TAO_debug_level++;
break;
case 'l':
this->address_ = opts.opt_arg ();
break;
case 'a':
this->peer_addr_ = opts.opt_arg ();
break;
default:
ACE_DEBUG ((LM_DEBUG, "Unknown Option\n"));
return -1;
}
}
return 0;
}
void
Sender::fill_qos (AVStreams::streamQoS &qos)
{
peak_bandwidth += 100;
ACE_DEBUG ((LM_DEBUG,
"Sender::fill_qos %d\n",
peak_bandwidth));
qos.length (1);
qos [0].QoSType = CORBA::string_dup ("Data_Receiver");
#ifdef ACE_HAS_RAPI
qos [0].QoSParams.length (10);
qos [0].QoSParams [0].property_name = CORBA::string_dup ("Service_Type");
qos [0].QoSParams [0].property_value <<= (CORBA::Short) 1;//ACE_SERVICETYPE_CONTROLLEDLOAD;
qos [0].QoSParams [1].property_name = CORBA::string_dup ("Token_Rate");
qos [0].QoSParams [1].property_value <<= (CORBA::ULong) 9200 ;
qos [0].QoSParams [2].property_name = CORBA::string_dup ("Token_Bucket_Size");
qos [0].QoSParams [2].property_value <<= (CORBA::ULong) 708;
qos [0].QoSParams [3].property_name = CORBA::string_dup ("Peak_Bandwidth");
qos [0].QoSParams [3].property_value <<= (CORBA::ULong) peak_bandwidth;
qos [0].QoSParams [4].property_name = CORBA::string_dup ("Latency");
qos [0].QoSParams [4].property_value <<= (CORBA::ULong) 0;
qos [0].QoSParams [5].property_name = CORBA::string_dup ("Delay_Variation");
qos [0].QoSParams [5].property_value <<= (CORBA::ULong) 0;
qos [0].QoSParams [6].property_name = CORBA::string_dup ("Max_SDU_Size");
qos [0].QoSParams [6].property_value <<= (CORBA::ULong) 368;
qos [0].QoSParams [7].property_name = CORBA::string_dup ("Minimum_Policed_Size");
qos [0].QoSParams [7].property_value <<= (CORBA::ULong) 368;
qos [0].QoSParams [8].property_name = CORBA::string_dup ("TTL");
qos [0].QoSParams [8].property_value <<= (CORBA::ULong) 25;
qos [0].QoSParams [9].property_name = CORBA::string_dup ("Priority");
qos [0].QoSParams [9].property_value <<= (CORBA::ULong) 1;
#else
qos [0].QoSParams.length (1);
qos [0].QoSParams [0].property_name = CORBA::string_dup ("Diffserv_Codepoint");
qos [0].QoSParams [0].property_value <<= (CORBA::Long) 63;
#endif //ACE_HAS_RAPI
}
// Method to get the object reference of the receiver
int
Sender::bind_to_receiver (void)
{
CosNaming::Name name (1);
name.length (1);
name [0].id =
CORBA::string_dup ("Receiver");
// Resolve the receiver object reference from the Naming Service
CORBA::Object_var receiver_mmdevice_obj =
this->naming_client_->resolve (name);
this->receiver_mmdevice_ =
AVStreams::MMDevice::_narrow (receiver_mmdevice_obj.in ());
if (CORBA::is_nil (this->receiver_mmdevice_.in ()))
ACE_ERROR_RETURN ((LM_ERROR,
"Could not resolve Receiver_MMdevice in Naming service\n"),
-1);
return 0;
}
int
Sender::init (int argc,
ACE_TCHAR *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 naming services
result =
this->naming_client_.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;
// 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 %C\n",
this->filename_.c_str ()),
-1);
else
ACE_DEBUG ((LM_DEBUG,
"File opened successfully\n"));
// Resolve the object reference of the receiver from the Naming Service.
result = this->bind_to_receiver ();
if (result != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"(%P|%t) Error binding to the naming service\n"),
-1);
this->flowname_ = "Data_Receiver";
// Set the address of the ftp client.
ACE_INET_Addr* addr;
if (this->address_ != 0)
ACE_NEW_RETURN (addr,
ACE_INET_Addr (this->address_),
-1);
else
{
char buf [BUFSIZ];
ACE_OS::hostname (buf,
BUFSIZ);
ACE_NEW_RETURN (addr,
ACE_INET_Addr ("5000",
buf),
-1);
}
// Create the forward flow specification to describe the flow.
TAO_Forward_FlowSpec_Entry entry (this->flowname_.c_str (),
"IN",
"USER_DEFINED",
"",
this->protocol_.c_str (),
addr);
ACE_INET_Addr* peer_addr;
if (this->peer_addr_ != 0)
ACE_NEW_RETURN (peer_addr,
ACE_INET_Addr (this->peer_addr_),
-1);
else
{
char buf [BUFSIZ];
ACE_OS::hostname (buf,
BUFSIZ);
ACE_NEW_RETURN (peer_addr,
ACE_INET_Addr ("5050",
buf),
-1);
}
entry.set_peer_addr (peer_addr);
AVStreams::flowSpec flow_spec (1);
flow_spec.length (1);
flow_spec [0] = CORBA::string_dup (entry.entry_to_string ());
// 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 ();
ACE_NEW_RETURN (this->streamctrl_,
TAO_StreamCtrl,
-1);
PortableServer::ServantBase_var safe_streamctrl =
this->streamctrl_;
AVStreams::streamQoS qos;
//this->fill_qos (qos);
// Bind/Connect the sender and receiver MMDevices.
CORBA::Boolean bind_result =
this->streamctrl_->bind_devs (mmdevice.in (),
this->receiver_mmdevice_.in (),
qos,
flow_spec);
if (bind_result == 0)
ACE_ERROR_RETURN ((LM_ERROR,
"streamctrl::bind_devs failed\n"),
-1);
return 0;
}
// Method to send data at the specified rate
int
Sender::pace_data (void)
{
// The time between two consecutive frames.
inter_frame_time.set (1.0 / this->frame_rate_);
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
"Frame Rate = %f / 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 ();
// Send frame.
int result =
this->protocol_object_->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 successfully\n",
++this->frame_count_));
// Reset the message block.
this->mb_.reset ();
if (this->frame_count_ == 2)
{
TAO_Forward_FlowSpec_Entry entry (this->flowname_.c_str (),
"IN",
"USER_DEFINED",
"",
this->protocol_.c_str (),
0);
AVStreams::flowSpec flow_spec (1);
flow_spec.length (1);
flow_spec [0] = CORBA::string_dup (entry.entry_to_string ());
AVStreams::streamQoS qos;
this->fill_qos (qos);
this->streamctrl_->modify_QoS (qos,
flow_spec);
}
} // end while
// File reading is complete, destroy the stream.
AVStreams::flowSpec stop_spec;
this->streamctrl_->destroy (stop_spec);
// Shut the orb down.
TAO_AV_CORE::instance ()->orb ()->shutdown (0);
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Sender::pace_data Failed\n");
return -1;
}
return 0;
}
int
ACE_TMAIN (int argc,
ACE_TCHAR *argv[])
{
try
{
CORBA::ORB_var orb =
CORBA::ORB_init (argc, argv);
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 Sender.
int result = 0;
result = SENDER::instance ()->init (argc,
argv);
if (result < 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Sender::init failed\n"),
-1);
// Start sending data.
result = 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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