// libeasy copy packet
BasePacket* BasePacketStreamer::clone_packet(BasePacket* src)
{
int32_t pcode = src->getPCode();
int64_t length = src->length();
BasePacket* dest = dynamic_cast<BasePacket*>(_factory->createPacket(pcode));
assert(NULL != dest);
// Stream stream(length);
dest->stream_.expand(length);
int ret = src->serialize(dest->stream_);
if (TFS_SUCCESS == ret)
{
ret = dest->deserialize(dest->stream_);
}
TBSYS_LOG_DW(ret, "clone packet, ret=%d, pcode=%d, length=%ld, src=%p, dest=%p",
ret, pcode, length, src, dest);
if (TFS_SUCCESS != ret)
{
tbsys::gDelete(dest);
dest = NULL;
}
else
{
dest->setChannelId(src->getChannelId());
dest->set_request(src->get_request());
dest->set_direction(src->get_direction());
}
return dest;
}
int BasePacketStreamer::encode_handler(easy_request_t *r, void *packet)
{
BasePacket* bp = (BasePacket*)packet;
int32_t pcode = bp->getPCode();
int64_t length = bp->length();
TBSYS_LOG(DEBUG, "encode packet, pcode=%d, length=%ld, chid=%d", pcode, length, bp->getChannelId());
if (EASY_TYPE_CLIENT == r->ms->c->type)
{
uint32_t chid = ((easy_session_t*)r->ms)->packet_id;
bp->setChannelId(chid);
}
else
{
if (((easy_message_t*)r->ms)->status == EASY_MESG_DESTROY)
{
return EASY_ERROR;
}
if (r->retcode == EASY_ABORT)
{
r->ms->c->pool->ref--;
easy_atomic_dec(&r->ms->pool->ref);
r->retcode = EASY_OK;
}
}
easy_list_t list;
easy_list_init(&list);
Stream output(r->ms->pool, &list);
output.reserve(TFS_PACKET_HEADER_V1_SIZE + bp->length());
output.set_int32(TFS_PACKET_FLAG_V1);
char* len_pos = output.get_free(); // length() may not equal real data length
output.set_int32(bp->length());
output.set_int16(bp->getPCode());
output.set_int16(TFS_PACKET_VERSION_V2);
output.set_int64(bp->getChannelId());
output.set_int32(0); // crc, place holder
if (TFS_SUCCESS != bp->serialize(output))
{
return EASY_ERROR;
}
// use real length to replace header length
if (bp->length() != output.get_data_length() - TFS_PACKET_HEADER_V1_SIZE)
{
// help to detect serialize problem
TBSYS_LOG(DEBUG, "length()=%ld not equals to serialize()=%ld",
bp->length(), output.get_data_length() - TFS_PACKET_HEADER_V1_SIZE);
int64_t pos = 0;
Serialization::set_int32(len_pos, INT_SIZE, pos, output.get_data_length() - TFS_PACKET_HEADER_V1_SIZE);
}
easy_request_addbuf_list(r, &list);
return EASY_OK;
}