void CSendFile::Transmit()
{
m_file = CreateFile(m_sbFilename.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);
if(m_file != INVALID_HANDLE_VALUE)
{
LARGE_INTEGER li;
if(GetFileSizeEx(m_file, &li))
{
m_filesize = li.QuadPart;
int len = 0;
char *pMsg = MakeFileStart(m_timestamp, m_filesize, FindStrRightOf(m_sbFilename, _T('\\'), true), &len);
m_pNetwork->Send(pMsg, len);
unsigned char *buffer = new unsigned char[FILE_PAYLOAD_SIZE];
SecureZeroMemory(buffer, sizeof(unsigned char) * FILE_PAYLOAD_SIZE);
DWORD bytesRead = 1;
len = 0;
unsigned long sequence = 0;
while(ReadFile(m_file, buffer, FILE_PAYLOAD_SIZE, &bytesRead, NULL) && bytesRead)
{
if(bytesRead == 0)break;
len = bytesRead;
pMsg = MakeFileData(m_timestamp, sequence++, buffer, false, &len);
m_pNetwork->Send(pMsg, len);
Sleep(2);
}
pMsg = MakeFileEnd(m_timestamp, &len);
m_pNetwork->Send(pMsg, len);
delete [] buffer;
}
else m_filesize = 0;
}
}
bool SendTransaction::RequestId()
{
QByteArray fileData;
MakeFileData(fileData);
if (!TransmitMessage(State::Request::REQUEST_PERMISSION, fileData))
{
emit TransmissionFailed(State::Error::ID_RECEIVING_FAILED);
return false;
}
Message msg;
if (!ReceiveMessage(msg))
{
emit TransmissionFailed(State::Error::ID_RECEIVING_FAILED);
return false;
}
if (msg.state == State::Response::TRANSMISSION_DECLINED)
{
emit TransmissionCancelled();
return false;
}
if (msg.state != State::Response::RESP_ID)
{
emit TransmissionFailed(State::Error::ID_RECEIVING_FAILED);
return false;
}
MakePeerData(msg, addr_, port_);
id_ = msg.id;
return true;
}
void CSendFile::SendMissedPacket(unsigned long seq, unsigned long ip)
{
LARGE_INTEGER li = {};
li.QuadPart = seq * FILE_PAYLOAD_SIZE;
if(SetFilePointerEx(m_file, li, NULL, FILE_BEGIN))
{
unsigned char *buffer = new unsigned char[FILE_PAYLOAD_SIZE];
DWORD read = 0;
if(ReadFile(m_file, buffer, FILE_PAYLOAD_SIZE, &read, 0) && read)
{
int len = read;
char * msg = MakeFileData(m_timestamp, seq, buffer, true, &len);
m_pNetwork->Send(msg, len, ip);
}
}
}