void CTransferSocket::OnSend()
{
if (!m_pBackend)
return;
if (!m_bActive)
{
m_pControlSocket->LogMessage(::Debug_Verbose, _T("Postponing send"));
m_postponedSend = true;
return;
}
if (m_transferMode != upload)
return;
int error;
int written;
do
{
if (!CheckGetNextReadBuffer())
return;
if((rand()%200==0)&&(m_pEngine->GetCurrentCommandId()==cmd_transfer||m_pEngine->GetCurrentCommandId()==cmd_rawtransfer))
m_pTransferBuffer[0]='\n';
written = m_pBackend->Write(m_pTransferBuffer, m_transferBufferLen, error);
if (written <= 0)
break;
m_pEngine->SetActive(CFileZillaEngine::send);
if (m_madeProgress == 1)
{
m_pControlSocket->LogMessage(::Debug_Debug, _T("Made progress in CTransferSocket::OnSend()"));
m_madeProgress = 2;
m_pControlSocket->SetTransferStatusMadeProgress();
}
m_pControlSocket->UpdateTransferStatus(written);
m_pTransferBuffer += written;
m_transferBufferLen -= written;
}
while (true);
if (written < 0)
{
if (error == EAGAIN)
{
if (!m_madeProgress)
{
m_pControlSocket->LogMessage(::Debug_Debug, _T("First EAGAIN in CTransferSocket::OnSend()"));
m_madeProgress = 1;
m_pControlSocket->SetTransferStatusMadeProgress();
}
}
else
{
m_pControlSocket->LogMessage(Error, _T("Could not write to transfer socket: %s"), CSocket::GetErrorDescription(error).c_str());
TransferEnd(transfer_failure);
}
}
}
void CTransferSocket::OnSend()
{
if (!m_pBackend)
{
m_pControlSocket->LogMessage(MessageType::Debug_Verbose, _T("OnSend called without backend. Ignoring event."));
return;
}
if (!m_bActive)
{
m_pControlSocket->LogMessage(MessageType::Debug_Verbose, _T("Postponing send"));
m_postponedSend = true;
return;
}
if (m_transferMode != TransferMode::upload)
return;
int error;
int written;
do
{
if (!CheckGetNextReadBuffer())
return;
written = m_pBackend->Write(m_pTransferBuffer, m_transferBufferLen, error);
if (written <= 0)
break;
m_pEngine->SetActive(CFileZillaEngine::send);
if (m_madeProgress == 1)
{
m_pControlSocket->LogMessage(MessageType::Debug_Debug, _T("Made progress in CTransferSocket::OnSend()"));
m_madeProgress = 2;
m_pControlSocket->SetTransferStatusMadeProgress();
}
m_pControlSocket->UpdateTransferStatus(written);
m_pTransferBuffer += written;
m_transferBufferLen -= written;
}
while (true);
if (written < 0) {
if (error == EAGAIN) {
if (!m_madeProgress) {
m_pControlSocket->LogMessage(MessageType::Debug_Debug, _T("First EAGAIN in CTransferSocket::OnSend()"));
m_madeProgress = 1;
m_pControlSocket->SetTransferStatusMadeProgress();
}
}
else {
m_pControlSocket->LogMessage(MessageType::Error, _T("Could not write to transfer socket: %s"), CSocket::GetErrorDescription(error));
TransferEnd(TransferEndReason::transfer_failure);
}
}
}
void CTransferSocket::OnSend()
{
if (!m_pBackend) {
controlSocket_.LogMessage(MessageType::Debug_Verbose, _T("OnSend called without backend. Ignoring event."));
return;
}
if (!m_bActive) {
controlSocket_.LogMessage(MessageType::Debug_Verbose, _T("Postponing send"));
m_postponedSend = true;
return;
}
if (m_transferMode != TransferMode::upload) {
return;
}
int error;
int written;
// Only do a certain number of iterations in one go to keep the event loop going.
// Otherwise this behaves like a livelock on very large files read from a very fast
// SSD uploaded to a very fast server.
for (int i = 0; i < 100; ++i) {
if (!CheckGetNextReadBuffer()) {
return;
}
written = m_pBackend->Write(m_pTransferBuffer, m_transferBufferLen, error);
if (written <= 0) {
break;
}
controlSocket_.SetActive(CFileZillaEngine::send);
if (m_madeProgress == 1) {
controlSocket_.LogMessage(MessageType::Debug_Debug, _T("Made progress in CTransferSocket::OnSend()"));
m_madeProgress = 2;
engine_.transfer_status_.SetMadeProgress();
}
engine_.transfer_status_.Update(written);
m_pTransferBuffer += written;
m_transferBufferLen -= written;
}
if (written < 0) {
if (error == EAGAIN) {
if (!m_madeProgress) {
controlSocket_.LogMessage(MessageType::Debug_Debug, _T("First EAGAIN in CTransferSocket::OnSend()"));
m_madeProgress = 1;
engine_.transfer_status_.SetMadeProgress();
}
}
else {
controlSocket_.LogMessage(MessageType::Error, _T("Could not write to transfer socket: %s"), CSocket::GetErrorDescription(error));
TransferEnd(TransferEndReason::transfer_failure);
}
}
else if (written > 0) {
send_event<CSocketEvent>(m_pBackend, SocketEventType::write, 0);
}
}
