// getting the file data
void CToxProto::OnDataReceiving(Tox*, uint32_t friendNumber, uint32_t fileNumber, uint64_t position, const uint8_t *data, size_t length, void *arg)
{
CToxProto *proto = (CToxProto*)arg;
FileTransferParam *transfer = proto->transfers.Get(friendNumber, fileNumber);
if (transfer == NULL)
{
proto->logger->Log(__FUNCTION__": failed to find transfer (%d) from (%d)", fileNumber, friendNumber);
return;
}
//receiving is finished
if (length == 0 || position == UINT64_MAX)
{
proto->OnTransferCompleted(transfer);
return;
}
MCONTACT hContact = proto->GetContact(friendNumber);
if (hContact == NULL)
{
proto->logger->Log(__FUNCTION__": cannot find contact by number (%d)", friendNumber);
tox_file_control(proto->toxThread->tox, friendNumber, fileNumber, TOX_FILE_CONTROL_CANCEL, NULL);
return;
}
uint64_t filePos = _ftelli64(transfer->hFile);
if (filePos != position)
_fseeki64(transfer->hFile, position, SEEK_SET);
if (fwrite(data, sizeof(uint8_t), length, transfer->hFile) != length)
{
proto->logger->Log(__FUNCTION__": failed write to file (%d)", fileNumber);
proto->ProtoBroadcastAck(transfer->pfts.hContact, ACKTYPE_FILE, ACKRESULT_FAILED, (HANDLE)transfer, 0);
tox_file_control(proto->toxThread->tox, friendNumber, fileNumber, TOX_FILE_CONTROL_CANCEL, NULL);
return;
}
transfer->pfts.totalProgress = transfer->pfts.currentFileProgress += length;
proto->ProtoBroadcastAck(transfer->pfts.hContact, ACKTYPE_FILE, ACKRESULT_DATA, (HANDLE)transfer, (LPARAM)&transfer->pfts);
}
