void EQStream::WritePacket(int eq_fd, EQProtocolPacket *p)
{
uint32 length;
sockaddr_in address;
address.sin_family = AF_INET;
address.sin_addr.s_addr=remote_ip;
address.sin_port=remote_port;
#ifdef NOWAY
uint32 ip=address.sin_addr.s_addr;
std::cout << "Sending to: "
<< (int)*(unsigned char *)&ip
<< "." << (int)*((unsigned char *)&ip+1)
<< "." << (int)*((unsigned char *)&ip+2)
<< "." << (int)*((unsigned char *)&ip+3)
<< "," << (int)ntohs(address.sin_port) << "(" << p->size << ")" << std::endl;
p->DumpRaw();
std::cout << "-------------" << std::endl;
#endif
length=p->serialize(buffer);
if (p->opcode!=OP_SessionRequest && p->opcode!=OP_SessionResponse) {
if (compressed) {
uint32 newlen=EQProtocolPacket::Compress(buffer,length, _tempBuffer, 2048);
memcpy(buffer,_tempBuffer,newlen);
length=newlen;
}
if (encoded) {
EQProtocolPacket::ChatEncode(buffer,length,Key);
}
*(uint16 *)(buffer+length)=htons(CRC16(buffer,length,Key));
length+=2;
}
//dump_message_column(buffer,length,"Writer: ");
sendto(eq_fd,(char *)buffer,length,0,(sockaddr *)&address,sizeof(address));
AddBytesSent(length);
}
void EQStream::Write(int eq_fd)
{
queue<EQProtocolPacket *> ReadyToSend;
bool SeqEmpty=false,NonSeqEmpty=false;
deque<EQProtocolPacket *>::iterator sitr;
// Check our rate to make sure we can send more
MRate.lock();
int32 threshold=RateThreshold;
MRate.unlock();
if (BytesWritten > threshold) {
//cout << "Over threshold: " << BytesWritten << " > " << threshold << endl;
return;
}
// If we got more packets to we need to ack, send an ack on the highest one
MAcks.lock();
if (CompareSequence(LastAckSent, NextAckToSend) == SeqFuture)
SendAck(NextAckToSend);
MAcks.unlock();
// Lock the outbound queues while we process
MOutboundQueue.lock();
// Place to hold the base packet t combine into
EQProtocolPacket *p=NULL;
#ifdef RETRANSMITS
// if we have a timeout defined and we have not received an ack recently enough, retransmit from beginning of queue
if (RuleR(EQStream, RetransmitTimeoutMult) && !SequencedQueue.empty() && NextSequencedSend && (GetState()==ESTABLISHED) && ((retransmittimer+retransmittimeout) < Timer::GetCurrentTime())) {
_log(NET__NET_TRACE, _L "Timeout since last ack received, starting retransmit at the start of our unacked buffer (seq %d, was %d)." __L, SequencedBase, SequencedBase+NextSequencedSend);
NextSequencedSend = 0;
retransmittimer = Timer::GetCurrentTime(); // don't want to endlessly retransmit the first packet
}
#endif
// Find the next sequenced packet to send from the "queue"
sitr = SequencedQueue.begin();
if (sitr!=SequencedQueue.end())
sitr += NextSequencedSend;
// Loop until both are empty or MaxSends is reached
while(!SeqEmpty || !NonSeqEmpty) {
// See if there are more non-sequenced packets left
if (!NonSequencedQueue.empty()) {
if (!p) {
// If we don't have a packet to try to combine into, use this one as the base
// And remove it form the queue
p = NonSequencedQueue.front();
_log(NET__NET_COMBINE, _L "Starting combined packet with non-seq packet of len %d" __L, p->size);
NonSequencedQueue.pop();
} else if (!p->combine(NonSequencedQueue.front())) {
// Tryint to combine this packet with the base didn't work (too big maybe)
// So just send the base packet (we'll try this packet again later)
_log(NET__NET_COMBINE, _L "Combined packet full at len %d, next non-seq packet is len %d" __L, p->size, (NonSequencedQueue.front())->size);
ReadyToSend.push(p);
BytesWritten+=p->size;
p=NULL;
if (BytesWritten > threshold) {
// Sent enough this round, lets stop to be fair
_log(NET__RATES, _L "Exceeded write threshold in nonseq (%d > %d)" __L, BytesWritten, threshold);
break;
}
} else {
// Combine worked, so just remove this packet and it's spot in the queue
_log(NET__NET_COMBINE, _L "Combined non-seq packet of len %d, yeilding %d combined." __L, (NonSequencedQueue.front())->size, p->size);
delete NonSequencedQueue.front();
NonSequencedQueue.pop();
}
} else {
// No more non-sequenced packets
NonSeqEmpty=true;
}
if (sitr!=SequencedQueue.end()) {
//_log(NET__NET_COMBINE, _L "Send Seq with %d seq packets starting at seq %d, next send %d, and %d non-seq packets." __L,
// SequencedQueue.size(), SequencedBase, NextSequencedSend, NonSequencedQueue.size());
if(uint16(SequencedBase + SequencedQueue.size()) != NextOutSeq) {
_log(NET__ERROR, _L "Pre-Send Seq NSS=%d Invalid Sequenced queue: BS %d + SQ %d != NOS %d" __L, NextSequencedSend, SequencedBase, SequencedQueue.size(), NextOutSeq);
}
if(NextSequencedSend > SequencedQueue.size()) {
_log(NET__ERROR, _L "Pre-Send Next Send Sequence is beyond the end of the queue NSS %d > SQ %d" __L, NextSequencedSend, SequencedQueue.size());
}
uint16 seq_send = SequencedBase + NextSequencedSend; //just for logging...
if(SequencedQueue.empty()) {
_log(NET__ERROR, _L "Tried to write a packet with an empty queue (%d is past next out %d)" __L, seq_send, NextOutSeq);
SeqEmpty=true;
continue;
}
/*if(CompareSequence(NextOutSeq, seq_send) == SeqFuture) {
_log(NET__ERROR, _L "Tried to write a packet beyond the end of the queue! (%d is past next out %d)" __L, seq_send, NextOutSeq);
sitr=SequencedQueue.end();
continue;
}*/
#ifdef RETRANSMITS
if (!RuleB(EQStream, RetransmitAckedPackets) && (*sitr)->acked) {
_log(NET__NET_TRACE, _L "Not retransmitting seq packet %d because already marked as acked" __L, seq_send);
sitr++;
NextSequencedSend++;
} else if (!p) {
#else
if (!p) {
#endif
// If we don't have a packet to try to combine into, use this one as the base
// Copy it first as it will still live until it is acked
p=(*sitr)->Copy();
_log(NET__NET_COMBINE, _L "Starting combined packet with seq packet %d of len %d" __L, seq_send, p->size);
sitr++;
NextSequencedSend++;
} else if (!p->combine(*sitr)) {
// Trying to combine this packet with the base didn't work (too big maybe)
// So just send the base packet (we'll try this packet again later)
_log(NET__NET_COMBINE, _L "Combined packet full at len %d, next seq packet %d is len %d" __L, p->size, seq_send, (*sitr)->size);
ReadyToSend.push(p);
BytesWritten+=p->size;
p=NULL;
if (BytesWritten > threshold) {
// Sent enough this round, lets stop to be fair
_log(NET__RATES, _L "Exceeded write threshold in seq (%d > %d)" __L, BytesWritten, threshold);
break;
}
} else {
// Combine worked
_log(NET__NET_COMBINE, _L "Combined seq packet %d of len %d, yeilding %d combined." __L, seq_send, (*sitr)->size, p->size);
sitr++;
NextSequencedSend++;
}
if(uint16(SequencedBase + SequencedQueue.size()) != NextOutSeq) {
_log(NET__ERROR, _L "Post send Invalid Sequenced queue: BS %d + SQ %d != NOS %d" __L, SequencedBase, SequencedQueue.size(), NextOutSeq);
}
if(NextSequencedSend > SequencedQueue.size()) {
_log(NET__ERROR, _L "Post send Next Send Sequence is beyond the end of the queue NSS %d > SQ %d" __L, NextSequencedSend, SequencedQueue.size());
}
} else {
// No more sequenced packets
SeqEmpty=true;
}
}
// Unlock the queue
MOutboundQueue.unlock();
// We have a packet still, must have run out of both seq and non-seq, so send it
if (p) {
_log(NET__NET_COMBINE, _L "Final combined packet not full, len %d" __L, p->size);
ReadyToSend.push(p);
BytesWritten+=p->size;
}
// Send all the packets we "made"
while(!ReadyToSend.empty()) {
p = ReadyToSend.front();
WritePacket(eq_fd,p);
delete p;
ReadyToSend.pop();
}
//see if we need to send our disconnect and finish our close
if(SeqEmpty && NonSeqEmpty) {
//no more data to send
if(CheckState(CLOSING)) {
_log(NET__DEBUG, _L "All outgoing data flushed, closing stream." __L );
//we are waiting for the queues to empty, now we can do our disconnect.
//this packet will not actually go out until the next call to Write().
_SendDisconnect();
SetState(DISCONNECTING);
}
}
}
void EQStream::WritePacket(int eq_fd, EQProtocolPacket *p)
{
uint32 length;
sockaddr_in address;
address.sin_family = AF_INET;
address.sin_addr.s_addr=remote_ip;
address.sin_port=remote_port;
#ifdef NOWAY
uint32 ip=address.sin_addr.s_addr;
cout << "Sending to: "
<< (int)*(unsigned char *)&ip
<< "." << (int)*((unsigned char *)&ip+1)
<< "." << (int)*((unsigned char *)&ip+2)
<< "." << (int)*((unsigned char *)&ip+3)
<< "," << (int)ntohs(address.sin_port) << "(" << p->size << ")" << endl;
p->DumpRaw();
cout << "-------------" << endl;
#endif
length=p->serialize(buffer);
if (p->opcode!=OP_SessionRequest && p->opcode!=OP_SessionResponse) {
if (compressed) {
uint32 newlen=EQProtocolPacket::Compress(buffer,length, _tempBuffer, 2048);
memcpy(buffer,_tempBuffer,newlen);
length=newlen;
}
if (encoded) {
EQProtocolPacket::ChatEncode(buffer,length,Key);
}
*(uint16 *)(buffer+length)=htons(CRC16(buffer,length,Key));
length+=2;
}
//dump_message_column(buffer,length,"Writer: ");
sendto(eq_fd,(char *)buffer,length,0,(sockaddr *)&address,sizeof(address));
AddBytesSent(length);
}
