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#include "receiver.h"
#include "ace/Get_Opt.h"
#include "tao/debug.h"
#include "tao/Strategies/advanced_resource.h"
static FILE *output_file = 0;
/// File handle of the file into which received data is written.
static int done = 0;
/// Flag set when a signal is raised.
// constructor.
Signal_Handler::Signal_Handler (void)
{
}
int
Signal_Handler::handle_signal (int signum, siginfo_t *, ucontext_t*)
{
if (signum == SIGINT)
{
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
"In the signal handler\n"));
done = 1;
}
return 0;
}
Connection_Manager *connection_manager;
int
Receiver_StreamEndPoint::get_callback (const char *flow_name,
TAO_AV_Callback *&callback)
{
/// Return the receiver application callback to the AVStreams for
/// future upcalls.
callback = &this->callback_;
ACE_CString fname = flow_name;
this->callback_.flowname (fname);
return 0;
}
CORBA::Boolean
Receiver_StreamEndPoint::handle_connection_requested (AVStreams::flowSpec &flowspec)
{
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
"In Handle Connection Requested\n"));
for (CORBA::ULong i = 0;
i < flowspec.length ();
i++)
{
TAO_Forward_FlowSpec_Entry entry;
entry.parse (flowspec[i]);
ACE_DEBUG ((LM_DEBUG,
"Handle Connection Requested flowname %C\n",
entry.flowname ()));
ACE_CString flowname (entry.flowname ());
/// Store the related streamctrl.
connection_manager->add_streamctrl (flowname.c_str (),
this);
}
return 1;
}
Receiver_Callback::Receiver_Callback (void)
: frame_count_ (1)
{
}
ACE_CString &
Receiver_Callback::flowname (void)
{
return this->flowname_;
}
void
Receiver_Callback::flowname (const ACE_CString &flowname)
{
this->flowname_ = flowname;
}
int
Receiver_Callback::handle_destroy (void)
{
/// Called when the sender requests the stream to be shutdown.
ACE_DEBUG ((LM_DEBUG,
"Receiver_Callback::end_stream\n"));
/// Remove the related stream control reference.
connection_manager->streamctrls ().unbind (this->flowname_.c_str ());
return 0;
}
int
Receiver_Callback::receive_frame (ACE_Message_Block *frame,
TAO_AV_frame_info *,
const ACE_Addr &)
{
///
/// Upcall from the AVStreams when there is data to be received from
/// the sender.
///
ACE_DEBUG ((LM_DEBUG,
"Receiver_Callback::receive_frame for frame %d\n",
this->frame_count_++));
while (frame != 0)
{
/// Write the received data to the file.
int result =
ACE_OS::fwrite (frame->rd_ptr (),
frame->length (),
1,
output_file);
if (result == (signed) frame->length ())
ACE_ERROR_RETURN ((LM_ERROR,
"Receiver_Callback::fwrite failed\n"),
-1);
frame = frame->cont ();
}
return 0;
}
Receiver::Receiver (void)
: mmdevice_ (0),
output_file_name_ ("output"),
sender_name_ ("distributer"),
receiver_name_ ("receiver")
{
}
Receiver::~Receiver (void)
{
}
ACE_CString
Receiver::sender_name (void)
{
return this->sender_name_;
}
ACE_CString
Receiver::receiver_name (void)
{
return this->receiver_name_;
}
int
Receiver::init (int,
ACE_TCHAR *[])
{
/// Initialize the endpoint strategy with the orb and poa.
int result =
this->reactive_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;
connection_manager = &this->connection_manager_;
ACE_Reactor *reactor =
TAO_AV_CORE::instance ()->reactor ();
if (reactor->register_handler (SIGINT,
&this->signal_handler_) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"Error in handler register\n"),
-1);
/// Register the signal handler for clean termination of the process.
/// Register the receiver mmdevice object with the ORB
ACE_NEW_RETURN (this->mmdevice_,
TAO_MMDevice (&this->reactive_strategy_),
-1);
/// Servant Reference Counting to manage lifetime
PortableServer::ServantBase_var safe_mmdevice =
this->mmdevice_;
AVStreams::MMDevice_var mmdevice =
this->mmdevice_->_this ();
/// Bind to sender.
this->connection_manager_.bind_to_sender (this->sender_name_,
this->receiver_name_,
mmdevice.in ());
/// Connect to the sender.
this->connection_manager_.connect_to_sender ();
return 0;
}
int
Receiver::parse_args (int argc,
ACE_TCHAR *argv[])
{
/// Parse the command line arguments
ACE_Get_Opt opts (argc,
argv,
"f:s:r:");
int c;
while ((c = opts ()) != -1)
{
switch (c)
{
case 'f':
this->output_file_name_ = ACE_TEXT_ALWAYS_CHAR (opts.opt_arg ());
break;
case 's':
this->sender_name_ = ACE_TEXT_ALWAYS_CHAR (opts.opt_arg ());
break;
case 'r':
this->receiver_name_ = ACE_TEXT_ALWAYS_CHAR (opts.opt_arg ());
break;
default:
ACE_ERROR_RETURN ((LM_ERROR,
"Usage: receiver -f filename"),
-1);
}
}
return 0;
}
ACE_CString
Receiver::output_file_name (void)
{
return this->output_file_name_;
}
void
Receiver::shut_down (void)
{
try
{
AVStreams::MMDevice_var mmdevice_obj =
this->mmdevice_->_this ();
this->connection_manager_.unbind_receiver (this->sender_name_,
this->receiver_name_,
mmdevice_obj.in ());
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Receiver::shut_down");
}
}
int
ACE_TMAIN (int argc,
ACE_TCHAR *argv[])
{
try
{
/// Initialize the ORB first.
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 AVStreams components.
TAO_AV_CORE::instance ()->init (orb.in (),
root_poa.in ());
Receiver receiver;
int result =
receiver.parse_args (argc,
argv);
if (result == -1)
return -1;
/// Make sure we have a valid <output_file>
output_file =
ACE_OS::fopen (receiver.output_file_name ().c_str (),
"w");
if (output_file == 0)
ACE_ERROR_RETURN ((LM_DEBUG,
"Cannot open output file %C\n",
receiver.output_file_name ().c_str ()),
-1);
else
ACE_DEBUG ((LM_DEBUG,
"File Opened Successfully\n"));
result =
receiver.init (argc,
argv);
if (result != 0)
return result;
while (!done)
{
orb->perform_work ();
}
receiver.shut_down ();
ACE_OS::fclose (output_file);
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("receiver::init");
return -1;
}
return 0;
}
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