void* compressLZ4(void* buffin)
{
ByteStreamPtr localBuffer[PACKET_NUM];
for(int n=0; n<NTIMES; n++)
{
// copy PACKET_NUM packets data locally
pthread_mutex_lock(&lockp);
for(int m=0; m<PACKET_NUM; m++)
{
ByteStreamPtr data = sharedDataAndInfoBuffer[sharedIndex].data;
sharedIndex = (sharedIndex+1) % sharedDataAndInfoBuffer.size();
sizeMB += (data->size() / 1000000.0);
#ifdef DEBUG
std::cout << "data size " << data->size() << std::endl;
std::cout << "toto size (MB) " << sizeMB << std::endl;
#endif
localBuffer[m] = data;
}
pthread_mutex_unlock(&lockp);
int compbytes = 0;
for(int m=0; m<PACKET_NUM; m++)
{
ByteStreamPtr data = localBuffer[m];
// compress
ByteStreamPtr datacomp = data->compress(LZ4, COMPRESSION_LEVEL);
// update local byte counter
compbytes += datacomp->size();
delete datacomp->getStream(); //HACK
}
// update global byte counter
pthread_mutex_lock(&lockp);
totbytescomp += compbytes;
pthread_mutex_unlock(&lockp);
}
return 0;
}
std::vector<ByteStreamPtr> createLZ4Buffer(PacketBufferV* buff)
{
std::vector<ByteStreamPtr> compbuff;
for(int i=0; i<buff->size(); i++)
{
ByteStreamPtr rawPacket = buff->getNext();
Packet *p = ps->getPacket(rawPacket);
#ifdef DEBUG
if(p->getPacketID() == 0) {
std::cerr << "No packet type recognized" << std::endl;
continue;
}
#endif
ByteStreamPtr data = p->getData();
ByteStreamPtr datacomp = data->compress(LZ4, COMPRESSION_LEVEL);
compbuff.push_back(datacomp);
}
return compbuff;
}
