bool BasePacketStreamer::encode(tbnet::Packet* packet, tbnet::DataBuffer* output) { bool bret = NULL != packet && NULL != output; if (bret) { tbnet::PacketHeader* header = packet->getPacketHeader(); int32_t old_len = output->getDataLen(); BasePacket* bpacket = dynamic_cast<BasePacket*>(packet); int32_t iret = TFS_SUCCESS; int32_t header_length = 0; int64_t pos = 0; //v1 if (TFS_PACKET_VERSION_V1 == bpacket->get_version()) { TfsPacketNewHeaderV1 pheader; pheader.crc_ = bpacket->get_crc(); pheader.flag_ = TFS_PACKET_FLAG_V1; pheader.id_ = bpacket->get_id(); pheader.length_ = bpacket->get_data_length(); pheader.type_ = header->_pcode; pheader.version_ = bpacket->get_version(); header_length = pheader.length(); output->ensureFree(header_length + pheader.length_); iret = pheader.serialize(output->getFree(), output->getFreeLen(), pos); }//v2 tbnet else if (TFS_PACKET_VERSION_V2 == bpacket->get_version()) { TfsPacketNewHeaderV1 pheader; pheader.crc_ = bpacket->get_crc(); pheader.flag_ = TFS_PACKET_FLAG_V1; pheader.id_ = bpacket->getChannelId(); pheader.length_ = bpacket->get_data_length(); pheader.type_ = header->_pcode; pheader.version_ = bpacket->get_version(); header_length = pheader.length(); output->ensureFree(header_length + pheader.length_); iret = pheader.serialize(output->getFree(), output->getFreeLen(), pos); } else//v0 { TfsPacketNewHeaderV1 pheader; memset(&pheader, 0, sizeof(pheader)); pheader.flag_ = TFS_PACKET_FLAG_V0; char* header_data = reinterpret_cast<char*>(&pheader); int32_t length = TFS_PACKET_HEADER_V0_SIZE - 2; for (int32_t i = 0; i < length; i++) { pheader.version_ = static_cast<uint16_t>(*(header_data + i)); } header_length = pheader.length(); output->ensureFree(header_length + pheader.length_); iret = pheader.serialize(output->getFree(), output->getFreeLen(), pos); } bret = TFS_SUCCESS == iret; if (bret) { //TBSYS_LOG(DEBUG, "pcode: %d, header length: %d, body length : %" PRI64_PREFIX "d", bpacket->getPCode(), header_length, bpacket->get_data_length()); //Func::hex_dump(output->getData(), output->getDataLen()); output->pourData(header_length); bret = bpacket->encode(output); //Func::hex_dump(output->getData(), output->getDataLen()); } else { TBSYS_LOG(ERROR, "encode erorr, pcode: %d", header->_pcode); output->stripData(output->getDataLen() - old_len); } } return bret; }