void
OpenDDS::DCPS::TcpDataLink::send_graceful_disconnect_message()
{
DBG_ENTRY_LVL("TcpDataLink","send_graceful_disconnect_message",6);
// Will clear all queued messages but still let the disconnect message
// sent.
this->send_strategy_->terminate_send(true);
DataSampleHeader header_data;
// The message_id_ is the most important value for the DataSampleHeader.
header_data.message_id_ = GRACEFUL_DISCONNECT;
// Other data in the DataSampleHeader are not necessary set. The bogus values
// can be used.
//header_data.byte_order_
// = this->transport_->get_configuration()->swap_bytes() ? !TAO_ENCAP_BYTE_ORDER : TAO_ENCAP_BYTE_ORDER;
//header_data.message_length_ = 0;
//header_data.sequence_ = 0;
//DDS::Time_t source_timestamp
// = OpenDDS::DCPS::time_value_to_time (ACE_OS::gettimeofday ());
//header_data.source_timestamp_sec_ = source_timestamp.sec;
//header_data.source_timestamp_nanosec_ = source_timestamp.nanosec;
//header_data.coherency_group_ = 0;
//header_data.publication_id_ = 0;
// TODO:
// It seems a bug in the transport implementation that the receiving side can
// not receive the message when the message has no sample data and is sent
// in a single packet.
// To work arround this problem, I have to add bogus data to chain with the
// DataSampleHeader to make the receiving work.
ACE_Message_Block* message;
size_t max_marshaled_size = header_data.max_marshaled_size();
ACE_Message_Block* data = 0;
ACE_NEW(data,
ACE_Message_Block(20,
ACE_Message_Block::MB_DATA,
0, //cont
0, //data
0, //allocator_strategy
0, //locking_strategy
ACE_DEFAULT_MESSAGE_BLOCK_PRIORITY,
ACE_Time_Value::zero,
ACE_Time_Value::max_time,
0,
0));
data->wr_ptr(20);
header_data.message_length_ = static_cast<ACE_UINT32>(data->length());
ACE_NEW(message,
ACE_Message_Block(max_marshaled_size,
ACE_Message_Block::MB_DATA,
data, //cont
0, //data
0, //allocator_strategy
0, //locking_strategy
ACE_DEFAULT_MESSAGE_BLOCK_PRIORITY,
ACE_Time_Value::zero,
ACE_Time_Value::max_time,
0,
0));
*message << header_data;
TransportControlElement* send_element = 0;
ACE_NEW(send_element, TransportControlElement(message));
// give the message block ownership to TransportControlElement
message->release();
// I don't want to rebuild a connection in order to send
// a graceful disconnect message.
this->send_i(send_element, false);
}
void
OpenDDS::DCPS::SimpleTcpDataLink::fully_associated()
{
DBG_ENTRY_LVL("SimpleTcpDataLink","fully_associated",6);
while (!this->connection_->is_connected()) {
ACE_Time_Value tv(0, 100000);
ACE_OS::sleep(tv);
}
this->resume_send();
bool swap_byte = this->transport_->get_configuration()->swap_bytes_;
DataSampleHeader header_data;
// The message_id_ is the most important value for the DataSampleHeader.
header_data.message_id_ = FULLY_ASSOCIATED;
// Other data in the DataSampleHeader are not necessary set. The bogus values
// can be used.
header_data.byte_order_
= swap_byte ? !TAO_ENCAP_BYTE_ORDER : TAO_ENCAP_BYTE_ORDER;
//header_data.message_length_ = 0;
//header_data.sequence_ = 0;
//DDS::Time_t source_timestamp
// = OpenDDS::DCPS::time_value_to_time (ACE_OS::gettimeofday ());
//header_data.source_timestamp_sec_ = source_timestamp.sec;
//header_data.source_timestamp_nanosec_ = source_timestamp.nanosec;
//header_data.coherency_group_ = 0;
//header_data.publication_id_ = 0;
ACE_Message_Block* message;
size_t max_marshaled_size = header_data.max_marshaled_size();
ACE_Message_Block* data = this->marshal_acks(swap_byte);
header_data.message_length_ = data->length();
ACE_NEW(message,
ACE_Message_Block(max_marshaled_size,
ACE_Message_Block::MB_DATA,
data, //cont
0, //data
0, //allocator_strategy
0, //locking_strategy
ACE_DEFAULT_MESSAGE_BLOCK_PRIORITY,
ACE_Time_Value::zero,
ACE_Time_Value::max_time,
0,
0));
message << header_data;
TransportControlElement* send_element = 0;
ACE_NEW(send_element, TransportControlElement(message));
// give the message block ownership to TransportControlElement
message->release ();
this->send_i(send_element);
}
