private async Task _sendMessage(SMPPMessage message)
{
using (await _sendLock.Enter()) {
if (!_isRunning)
{
throw new SMPPException("Connection is down.");
}
PduWriter writer = new PduWriter();
if ((message.Command & CommandSet.Response) == 0)
{
lock (this) {
message.Sequence = _sequence;
_sequence = (_sequence < 1000000000) ? _sequence + 1 : 1;
}
}
writer.WriteMessage(message);
byte[] pduData = writer.PduData();
#if DEBUG
Debug.WriteLine("SMPPConnection: SendMessage size=" + pduData.Length + " id=" + message.Command + " status=" + message.Status + " seq=" + message.Sequence);
#endif
try {
await _stream.WriteAsync(pduData, 0, pduData.Length);
}
catch (Exception err) {
throw _setFailed(new SMPPException("Send data to SMPP server failed", err));
}
}
}
internal override void Serialize(PduWriter writer)
{
writer.WriteCStringAscii(SystemId, 1, 15);
writer.WriteCStringAscii(Password, 0, 8);
writer.WriteCStringAscii(SystemType, 0, 12);
writer.WriteByte((byte)InterfaceVersion);
writer.WriteByte((byte)AddrTon);
writer.WriteByte((byte)AddrNpi);
writer.WriteCStringAscii(AddressRange, 0, 40);
}
internal override void Serialize(PduWriter writer)
{
writer.WriteCStringAscii(ServiceType, 0, 5);
writer.WriteByte((byte)SourceTon);
writer.WriteByte((byte)SourceNpi);
writer.WriteCStringAscii(SourceAddr, 0, 20);
writer.WriteByte((byte)DestTon);
writer.WriteByte((byte)DestNpi);
writer.WriteCStringAscii(DestAddr, 0, 20);
writer.WriteByte((byte)EsmClass);
writer.WriteByte((byte)ProtocolId);
writer.WriteByte((byte)PriorityFlag);
writer.WriteCStringAscii(ScheduleDeliveryTime, 0, 16);
writer.WriteCStringAscii(ValidityPeriod, 0, 16);
writer.WriteByte((byte)RegisteredDelivery);
writer.WriteByte(ReplaceIfPresent);
writer.WriteByte((byte)DataCoding);
writer.WriteByte(DefaultMessageId);
writer.WriteByte((byte)ShortMessage.Length);
writer.WriteBytes(ShortMessage);
}
internal virtual void Serialize(PduWriter writer)
{
throw new SMPPException("Can't send message " + Command + ".");
}
internal override void Serialize(PduWriter writer)
{
}
internal override void Serialize(PduWriter writer)
{
writer.WriteCStringAscii(MessageId, 0, 15);
}
