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handle received packets in right order

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orignal 2014-02-01 22:20:41 -05:00
parent 499a7a9e32
commit 04cf2031ef
2 changed files with 47 additions and 44 deletions
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90
Streaming.cpp
View File

@ -34,55 +34,22 @@ namespace stream
if (!m_SendStreamID)
m_SendStreamID = packet->GetReceiveStreamID ();
// process flags
uint16_t flags = packet->GetFlags ();
const uint8_t * optionData = packet->GetOptionData ();
if (flags & PACKET_FLAG_SYNCHRONIZE)
{
LogPrint ("Synchronize");
}
if (flags & PACKET_FLAG_SIGNATURE_INCLUDED)
{
LogPrint ("Signature");
optionData += 40;
}
if (flags & PACKET_FLAG_FROM_INCLUDED)
{
LogPrint ("From identity");
optionData += sizeof (i2p::data::Identity);
}
uint32_t receivedSeqn = packet->GetSeqn ();
LogPrint ("seqn=", receivedSeqn, ", flags=", flags);
LogPrint ("Received seqn=", receivedSeqn);
if (!receivedSeqn || receivedSeqn == m_LastReceivedSequenceNumber + 1)
{
// we have received next message
packet->offset = packet->GetPayload () - packet->buf;
if (packet->GetLength () > 0)
m_ReceiveQueue.Put (packet);
else
delete packet;
m_LastReceivedSequenceNumber = receivedSeqn;
SendQuickAck ();
// we have received next in sequence message
ProcessPacket (packet);
// we should also try stored messages if any
for (auto it = m_SavedPackets.begin (); it != m_SavedPackets.end ();)
{
if ((*it)->GetSeqn () == m_LastReceivedSequenceNumber + 1)
{
Packet * packet = *it;
Packet * savedPacket = *it;
m_SavedPackets.erase (it++);
LogPrint ("Process saved packet seqn=", packet->GetSeqn ());
if (packet->GetLength () > 0)
m_ReceiveQueue.Put (packet);
else
delete packet;
m_LastReceivedSequenceNumber++;
SendQuickAck ();
ProcessPacket (savedPacket);
}
else
break;
@ -106,7 +73,47 @@ namespace stream
SavePacket (packet);
}
}
}
void Stream::SavePacket (Packet * packet)
{
m_SavedPackets.insert (packet);
}
void Stream::ProcessPacket (Packet * packet)
{
// process flags
uint32_t receivedSeqn = packet->GetSeqn ();
uint16_t flags = packet->GetFlags ();
LogPrint ("Process seqn=", receivedSeqn, ", flags=", flags);
const uint8_t * optionData = packet->GetOptionData ();
if (flags & PACKET_FLAG_SYNCHRONIZE)
{
LogPrint ("Synchronize");
}
if (flags & PACKET_FLAG_SIGNATURE_INCLUDED)
{
LogPrint ("Signature");
optionData += 40;
}
if (flags & PACKET_FLAG_FROM_INCLUDED)
{
LogPrint ("From identity");
optionData += sizeof (i2p::data::Identity);
}
packet->offset = packet->GetPayload () - packet->buf;
if (packet->GetLength () > 0)
m_ReceiveQueue.Put (packet);
else
delete packet;
m_LastReceivedSequenceNumber = receivedSeqn;
SendQuickAck ();
if (flags & PACKET_FLAG_CLOSE)
{
LogPrint ("Closed");
@ -114,11 +121,6 @@ namespace stream
m_ReceiveQueue.WakeUp ();
}
}
void Stream::SavePacket (Packet * packet)
{
m_SavedPackets.insert (packet);
}
size_t Stream::Send (uint8_t * buf, size_t len, int timeout)
{

1
Streaming.h
View File

@ -84,6 +84,7 @@ namespace stream
void SendQuickAck ();
void SavePacket (Packet * packet);
void ProcessPacket (Packet * packet);
private: