int32 onPacketAppend(int32 addsize, bool inseparable = true)
{
if(pCurrPacket_ == NULL)
{
newPacket();
}
int32 packetmaxsize = PACKET_MAX_CHUNK_SIZE();
int32 totalsize = (int32)pCurrPacket_->totalSize();
int32 fwpos = (int32)pCurrPacket_->wpos();
if(inseparable)
fwpos += addsize;
if(fwpos >= packetmaxsize)
{
TRACE_BUNDLE_DATA(false, pCurrPacket_, pCurrMsgHandler_, totalsize);
packets_.push_back(pCurrPacket_);
currMsgPacketCount_++;
newPacket();
totalsize = 0;
}
int32 remainsize = packetmaxsize - totalsize;
int32 taddsize = addsize;
// 如果 当前包剩余空间小于要添加的字节则本次填满此包
if(remainsize < addsize)
taddsize = remainsize;
currMsgLength_ += taddsize;
return taddsize;
}
//-------------------------------------------------------------------------------------
void Bundle::finish(bool issend)
{
KBE_ASSERT(pCurrPacket_ != NULL);
if(issend)
{
currMsgPacketCount_++;
packets_.push_back(pCurrPacket_);
}
// 此处对于非固定长度的消息来说需要设置它的最终长度信息
if(currMsgHandlerLength_ < 0 || g_packetAlwaysContainLength)
{
Packet* pPacket = pCurrPacket_;
if(currMsgPacketCount_ > 0)
pPacket = packets_[packets_.size() - currMsgPacketCount_];
currMsgLength_ -= MERCURY_MESSAGE_ID_SIZE;
currMsgLength_ -= MERCURY_MESSAGE_LENGTH_SIZE;
memcpy(&pPacket->data()[currMsgLengthPos_],
(uint8*)&currMsgLength_, MERCURY_MESSAGE_LENGTH_SIZE);
}
if(issend)
{
currMsgHandlerLength_ = 0;
TRACE_BUNDLE_DATA(false, pCurrPacket_, pCurrMsgHandler_, this->totalSize());
pCurrPacket_ = NULL;
}
currMsgID_ = 0;
currMsgPacketCount_ = 0;
currMsgLength_ = 0;
currMsgLengthPos_ = 0;
}
//-------------------------------------------------------------------------------------
void Channel::handleMessage(KBEngine::Mercury::MessageHandlers* pMsgHandlers)
{
if (this->isDestroyed())
{
ERROR_MSG("Channel::handleMessage(%s): channel[%p] is destroyed.\n", this->c_str(), this);
return;
}
if(this->isCondemn())
{
ERROR_MSG("Channel::handleMessage(%s): channel[%p] is condemn.\n", this->c_str(), this);
//this->destroy();
return;
}
try
{
BufferedReceives::iterator packetIter = bufferedReceives_.begin();
for(; packetIter != bufferedReceives_.end(); packetIter++)
{
Packet* pPacket = (*packetIter);
while(pPacket->totalSize() > 0)
{
if(fragmentDatasFlag_ == FRAGMENT_DATA_UNKNOW)
{
if(currMsgID_ == 0)
{
if(MERCURY_MESSAGE_ID_SIZE > 1 && pPacket->opsize() < MERCURY_MESSAGE_ID_SIZE)
{
writeFragmentMessage(FRAGMENT_DATA_MESSAGE_ID, pPacket, MERCURY_MESSAGE_ID_SIZE);
break;
}
(*pPacket) >> currMsgID_;
pPacket->messageID(currMsgID_);
}
Mercury::MessageHandler* pMsgHandler = pMsgHandlers->find(currMsgID_);
if(pMsgHandler == NULL)
{
TRACE_BUNDLE_DATA(true, pPacket, pMsgHandler, pPacket->totalSize());
WARNING_MSG("Channel::handleMessage: invalide msgID=%d, msglen=%d, from %s.\n",
currMsgID_, pPacket->totalSize(), c_str());
currMsgID_ = 0;
currMsgLen_ = 0;
condemn();
break;
}
TRACE_BUNDLE_DATA(true, pPacket, pMsgHandler, pPacket->totalSize());
// 如果没有可操作的数据了则退出等待下一个包处理。
//if(pPacket->opsize() == 0) // 可能是一个无参数数据包
// break;
if(currMsgLen_ == 0)
{
if(pMsgHandler->msgLen == MERCURY_VARIABLE_MESSAGE || g_packetAlwaysContainLength)
{
// 如果长度信息不完整， 则等待下一个包处理
if(pPacket->opsize() < MERCURY_MESSAGE_LENGTH_SIZE)
{
writeFragmentMessage(FRAGMENT_DATA_MESSAGE_LENGTH, pPacket, MERCURY_MESSAGE_LENGTH_SIZE);
break;
}
else
(*pPacket) >> currMsgLen_;
}
else
currMsgLen_ = pMsgHandler->msgLen;
}
if(currMsgLen_ > MERCURY_MESSAGE_MAX_SIZE / 2)
{
WARNING_MSG("Channel::handleMessage(%s): msglen is error! msgID=%d, msglen=(%d:%d), from %s.\n",
pMsgHandler->name.c_str(), currMsgID_, currMsgLen_, pPacket->totalSize(), c_str());
currMsgLen_ = 0;
condemn();
break;
}
if(pFragmentStream_ != NULL)
{
pMsgHandler->handle(this, *pFragmentStream_);
MemoryStream::ObjPool().reclaimObject(pFragmentStream_);
pFragmentStream_ = NULL;
}
else
{
if(pPacket->opsize() < currMsgLen_)
{
writeFragmentMessage(FRAGMENT_DATA_MESSAGE_BODY, pPacket, currMsgLen_);
break;
}
// 临时设置有效读取位， 防止接口中溢出操作
size_t wpos = pPacket->wpos();
// size_t rpos = pPacket->rpos();
size_t frpos = pPacket->rpos() + currMsgLen_;
pPacket->wpos(frpos);
pMsgHandler->handle(this, *pPacket);
// 防止handle中没有将数据导出获取非法操作
if(currMsgLen_ > 0)
{
if(frpos != pPacket->rpos())
{
CRITICAL_MSG("Channel::handleMessage(%s): rpos(%d) invalid, expect=%d. msgID=%d, msglen=%d.\n",
pMsgHandler->name.c_str(), pPacket->rpos(), frpos, currMsgID_, currMsgLen_);
pPacket->rpos(frpos);
}
}
pPacket->wpos(wpos);
}
currMsgID_ = 0;
currMsgLen_ = 0;
}
else
{
mergeFragmentMessage(pPacket);
}
}
if(pPacket->isTCPPacket())
TCPPacket::ObjPool().reclaimObject(static_cast<TCPPacket*>(pPacket));
else
UDPPacket::ObjPool().reclaimObject(static_cast<UDPPacket*>(pPacket));
}
