void connectProc(aioInfo *info)
{
SSLOp *Op = (SSLOp*)info->arg;
SSLSocket *S = Op->info.socket;
if (info->status == aosSuccess) {
if (Op->state == sslStReadNewFrame) {
BIO_write(S->bioIn, S->sslReadBuffer, info->bytesTransferred);
Op->state = sslStConnecting;
}
int connectResult = SSL_connect(S->ssl);
int errCode = SSL_get_error(S->ssl, connectResult);
if (connectResult == 1) {
// Successfully connected
finishSSLOp(Op, aosSuccess);
} else if (errCode == SSL_ERROR_WANT_READ) {
// Need data exchange
size_t connectSize = copyFromOut(S, Op);
Op->state = sslStReadNewFrame;
asyncWrite(S->object, Op->sslBuffer, connectSize, afNone, 3000000, 0, 0);
asyncRead(S->object, S->sslReadBuffer, S->sslReadBufferSize, afNone, 3000000, connectProc, Op);
} else {
finishSSLOp(Op, aosUnknownError);
}
} else {
finishSSLOp(Op, info->status);
}
}
void sslRead(SSLSocket *socket,
void *buffer,
size_t size,
AsyncFlags flags,
uint64_t usTimeout,
sslCb callback,
void *arg)
{
size_t readSize = BIO_ctrl_pending(socket->bioIn);
SSLOp *newOp = allocSSLOp(socket, callback, arg, buffer, size, afNone);
newOp->type = sslOpRead;
newOp->state = sslStReadNewFrame;
if (readSize >= size) {
BIO_read(socket->bioOut, buffer, size);
finishSSLOp(newOp, aosSuccess);
} else if (!socket->current) {
socket->current = newOp;
asyncRead(socket->object, socket->sslReadBuffer, socket->sslReadBufferSize, afNone, usTimeout, readProc, newOp);
} else {
newOp->usTimeout = usTimeout;
socket->current->next = newOp;
}
}
void readProc(aioInfo *info)
{
SSLOp *Op = (SSLOp*)info->arg;
SSLSocket *S = Op->info.socket;
if (info->status == aosSuccess) {
if (Op->state == sslStReadNewFrame) {
BIO_write(S->bioIn, S->sslReadBuffer, info->bytesTransferred);
Op->state = sslStReading;
}
uint8_t *ptr = ((uint8_t*)Op->info.buffer) + Op->info.bytesTransferred;
size_t size = Op->info.transactionSize-Op->info.bytesTransferred;
int readResult = 0;
int R;
while ( (R = SSL_read(S->ssl, ptr, size)) > 0) {
readResult += R;
ptr += R;
size -= R;
}
Op->info.bytesTransferred += readResult;
if (Op->info.bytesTransferred == Op->info.transactionSize || (Op->info.bytesTransferred && !(Op->info.flags & afWaitAll))) {
finishSSLOp(Op, aosSuccess);
} else {
Op->state = sslStReadNewFrame;
asyncRead(S->object, S->sslReadBuffer, S->sslReadBufferSize, afNone, 3000000, readProc, Op);
}
} else {
finishSSLOp(Op, info->status);
}
}
void AsyncFile::readFinished(qint64 bytes)
{
reading = false;
m_readBuffer.append(QByteArray(overlapped.buffer, bytes));
// memset(overlapped.buffer, 0, BUFFER_SIZE);
emit readyRead();
// QMetaObject::invokeMethod(this, "asyncRead", Qt::QueuedConnection);
asyncRead(pos());
}
void ChatClient::handleConnect(const boost::system::error_code& error,
Sctp::ip::sctp::resolver_iterator iterator)
{
if (error) {
LOG(info) << "Connect error";
close();
connectAsyncNext(iterator);
return;
}
asyncRead();
asyncReadFromStdin();
}
void BasicConnection::receive( const std::size_t size, ReceiveCallback callback ){
// Read the message asynchronously.
const BufferMap::key_type bufferId = ++m_bufferCounter;
asyncRead(
m_bufferMap[ bufferId ].resize( size ),
std::bind(
&BasicConnection::_receiveComplete,
shared_from_this(),
bufferId,
callback,
std::placeholders::_1,
std::placeholders::_2 )
);
}
void ChatClient::handleRead(const boost::system::error_code& error,
size_t length)
{
if (error) {
LOG(info) << "Read error";
close();
return;
}
m_messageBuffer.sgetn(m_buffer, length);
writeOutputPrompt();
std::cout << m_buffer << std::flush;
writeInputPrompt();
asyncRead();
}
qint64 AsyncFile::readData(char *data, qint64 maxlen)
{
qint64 size = qMin((qint64)m_readBuffer.size(), maxlen);
qDebug() << "readData" << maxlen << size;
if (size == 0)
return 0;
qDebug() << pos() + maxlen << this->size();
// Q_ASSERT(pos() + maxlen <= this->size());
memcpy(data, m_readBuffer.data(), size);
m_readBuffer.remove(0, size);
Q_ASSERT(m_readBuffer.isEmpty());
asyncRead(pos() + size);
return size;
}
void
EthernetChannel::handleRead(const boost::system::error_code& error,
const FaceCreatedCallback& onFaceCreated,
const FaceCreationFailedCallback& onReceiveFailed)
{
if (error) {
if (error != boost::asio::error::operation_aborted) {
NFD_LOG_CHAN_DEBUG("Receive failed: " << error.message());
if (onReceiveFailed)
onReceiveFailed(500, "Receive failed: " + error.message());
}
return;
}
const uint8_t* pkt;
size_t len;
std::string err;
std::tie(pkt, len, err) = m_pcap.readNextPacket();
if (pkt == nullptr) {
NFD_LOG_CHAN_WARN("Read error: " << err);
}
else {
const ether_header* eh;
std::tie(eh, err) = ethernet::checkFrameHeader(pkt, len, m_localEndpoint->getEthernetAddress(),
m_localEndpoint->getEthernetAddress());
if (eh == nullptr) {
NFD_LOG_CHAN_DEBUG(err);
}
else {
ethernet::Address sender(eh->ether_shost);
pkt += ethernet::HDR_LEN;
len -= ethernet::HDR_LEN;
processIncomingPacket(pkt, len, sender, onFaceCreated, onReceiveFailed);
}
}
#ifdef _DEBUG
size_t nDropped = m_pcap.getNDropped();
if (nDropped - m_nDropped > 0)
NFD_LOG_CHAN_DEBUG("Detected " << nDropped - m_nDropped << " dropped frame(s)");
m_nDropped = nDropped;
#endif
asyncRead(onFaceCreated, onReceiveFailed);
}
static void finishSSLOp(SSLOp *Op, AsyncOpStatus status)
{
SSLOp *current = Op->next;
if (Op->type != sslOpWrite)
Op->info.socket->current = current;
Op->info.status = status;
if (Op->info.callback)
Op->info.callback(&Op->info);
releaseObject(Op->info.socket->base, Op, sslPoolId);
if (current && Op->type != sslOpWrite) {
SSLSocket *S = current->info.socket;
switch (current->type) {
case sslOpConnect :
asyncConnect(S->object, ¤t->address, current->usTimeout, connectProc, current);
break;
case sslOpRead :
asyncRead(S->object, S->sslReadBuffer, S->sslReadBufferSize, afNone, current->usTimeout, readProc, current);
break;
}
}
}
void
EthernetChannel::listen(const FaceCreatedCallback& onFaceCreated,
const FaceCreationFailedCallback& onFaceCreationFailed)
{
if (isListening()) {
NFD_LOG_CHAN_WARN("Already listening");
return;
}
m_isListening = true;
try {
m_pcap.activate(DLT_EN10MB);
m_socket.assign(m_pcap.getFd());
}
catch (const PcapHelper::Error& e) {
NDN_THROW_NESTED(Error(e.what()));
}
updateFilter();
asyncRead(onFaceCreated, onFaceCreationFailed);
NFD_LOG_CHAN_DEBUG("Started listening");
}
bool AsyncFile::open(QIODevice::OpenMode mode)
{
#ifdef Q_OS_WIN
m_FileHandle = CreateFile(reinterpret_cast<wchar_t *>(QString(m_filePath).data()), // file to open
GENERIC_READ, // open for reading
FILE_SHARE_READ, // share for reading
NULL, // default security
OPEN_EXISTING, // existing file only
FILE_FLAG_OVERLAPPED, // overlapped operation
NULL); // no attr. template
if (m_FileHandle == INVALID_HANDLE_VALUE) {
setError(QFileDevice::OpenError, errorMessage(GetLastError()));
return false;
}
if (!asyncRead(pos())) {
setError(QFileDevice::OpenError, errorMessage(GetLastError()));
return false;
}
#endif
return QIODevice::open(mode | QIODevice::Unbuffered);
}
void KConnectionSelectable::read(KHttpRequest *rq,resultEvent result,bufferEvent buffer,int list)
{
rq->c->selector->addList(rq,list);
asyncRead(rq,result,buffer);
}
// PD_TRACE_DECLARE_FUNCTION ( SDB__NETEVNHND__RDCALLBK, "_netEventHandler::_readCallback" )
void _netEventHandler::_readCallback( const boost::system::error_code &
error )
{
PD_TRACE_ENTRY ( SDB__NETEVNHND__RDCALLBK ) ;
if ( error )
{
if ( error.value() == boost::system::errc::operation_canceled ||
error.value() == boost::system::errc::no_such_file_or_directory )
{
PD_LOG ( PDINFO, "connection aborted, node:%d, %d, %d",
_id.columns.groupID, _id.columns.nodeID,
_id.columns.serviceID ) ;
}
else
{
PD_LOG ( PDERROR, "Error received, node:%d, %d, %d, err=%d",
_id.columns.groupID, _id.columns.nodeID,
_id.columns.serviceID, error.value() ) ;
}
goto error_close ;
}
if ( NET_EVENT_HANDLER_STATE_HEADER == _state )
{
if ( ( UINT32 )MSG_SYSTEM_INFO_LEN == (UINT32)_header.messageLength )
{
if ( SDB_OK != _allocateBuf( sizeof(MsgSysInfoRequest) ))
{
goto error_close ;
}
_hasRecvMsg = TRUE ;
ossMemcpy( _buf, &_header, sizeof( MsgSysInfoRequest ) ) ;
_frame->handleMsg( shared_from_this() ) ;
_state = NET_EVENT_HANDLER_STATE_HEADER ;
asyncRead() ;
goto done ;
}
else if ( sizeof(_MsgHeader) > (UINT32)_header.messageLength ||
SDB_MAX_MSG_LENGTH < (UINT32)_header.messageLength )
{
PD_LOG( PDERROR, "Error header[len: %d, opCode: (%d)%d, TID:%d] "
"received, node:%d, %d, %d", _header.messageLength,
IS_REPLY_TYPE(_header.opCode) ? 1 : 0,
GET_REQUEST_TYPE(_header.opCode), _header.TID,
_id.columns.groupID,
_id.columns.nodeID, _id.columns.serviceID ) ;
goto error_close ;
}
else
{
if ( FALSE == _hasRecvMsg )
{
_hasRecvMsg = TRUE ;
_state = NET_EVENT_HANDLER_STATE_HEADER_LAST ;
asyncRead() ;
_state = NET_EVENT_HANDLER_STATE_HEADER ;
goto done ;
}
PD_LOG( PDDEBUG, "msg header: [len:%d], [opCode: [%d]%d], "
"[TID:%d], [groupID:%d], [nodeID:%d], "
"[ADDR:%s], [PORT:%d]",
_header.messageLength, IS_REPLY_TYPE(_header.opCode)?1:0,
GET_REQUEST_TYPE(_header.opCode),
_header.TID, _header.routeID.columns.groupID,
_header.routeID.columns.nodeID,
remoteAddr().c_str(), remotePort() ) ;
if ( MSG_INVALID_ROUTEID == _id.value )
{
if ( MSG_INVALID_ROUTEID != _header.routeID.value )
{
_id = _header.routeID ;
_frame->_addRoute( shared_from_this() ) ;
}
}
}
if ( (UINT32)sizeof(_MsgHeader) == (UINT32)_header.messageLength )
{
if ( SDB_OK != _allocateBuf( sizeof(_MsgHeader) ))
{
goto error_close ;
}
ossMemcpy( _buf, &_header, sizeof( _MsgHeader ) ) ;
_frame->handleMsg( shared_from_this() ) ;
_state = NET_EVENT_HANDLER_STATE_HEADER ;
asyncRead() ;
goto done ;
}
#if defined (_LINUX)
try
{
boost::asio::detail::socket_option::boolean<IPPROTO_TCP, TCP_QUICKACK>
quickack( TRUE ) ;
_sock.set_option( quickack ) ;
}
catch ( boost::system::system_error &e )
{
PD_LOG ( PDERROR, "Failed to quick ack: %s", e.what() ) ;
}
#endif // _LINUX
_state = NET_EVENT_HANDLER_STATE_BODY ;
asyncRead() ;
}
else
{
_frame->handleMsg( shared_from_this() ) ;
_state = NET_EVENT_HANDLER_STATE_HEADER ;
asyncRead() ;
}
done:
PD_TRACE_EXIT ( SDB__NETEVNHND__RDCALLBK ) ;
return ;
error_close:
if ( _isConnected )
{
close() ;
}
_frame->handleClose( shared_from_this(), _id ) ;
_frame->_erase( handle() ) ;
goto done ;
}