bool InBandStream::sendNextPaket(bool AFlush)
{
bool sent = false;
if (isOpen() && FDataIqRequestId.isEmpty() && (bytesToWrite()>=FBlockSize || AFlush))
{
FThreadLock.lockForWrite();
QByteArray data = FWriteBuffer.read(FBlockSize);
FThreadLock.unlock();
if (!data.isEmpty())
{
if (FStanzaProcessor)
{
Stanza paket(FStanzaType==StanzaMessage ? STANZA_KIND_MESSAGE : STANZA_KIND_IQ);
paket.setTo(FContactJid.full()).setUniqueId();
QDomElement dataElem = paket.addElement("data",NS_INBAND_BYTESTREAMS);
dataElem.setAttribute("sid",FStreamId);
dataElem.setAttribute("seq",FSeqOut);
dataElem.appendChild(paket.createTextNode(QString::fromUtf8(data.toBase64())));
if (FStanzaType == StanzaMessage)
{
QDomElement ampElem = paket.addElement("amp","http://jabber.org/protocol/amp");
QDomElement ruleElem = ampElem.appendChild(paket.createElement("rule")).toElement();
ruleElem.setAttribute("condition","deliver");
ruleElem.setAttribute("value","stored");
ruleElem.setAttribute("action","error");
ruleElem = ampElem.appendChild(paket.createElement("rule")).toElement();
ruleElem.setAttribute("condition","match-resource");
ruleElem.setAttribute("value","exact");
ruleElem.setAttribute("action","error");
DataEvent *dataEvent = new DataEvent(AFlush);
QCoreApplication::postEvent(this, dataEvent);
sent = FStanzaProcessor->sendStanzaOut(FStreamJid,paket);
}
else
{
paket.setType(STANZA_TYPE_SET);
FDataIqRequestId = paket.id();
sent = FStanzaProcessor->sendStanzaRequest(this,FStreamJid,paket,DATA_TIMEOUT);
}
}
if (sent)
{
FSeqOut = FSeqOut<USHRT_MAX ? FSeqOut+1 : 0;
emit bytesWritten(data.size());
FBytesWrittenCondition.wakeAll();
}
else
{
abort(XmppError(IERR_INBAND_STREAM_DATA_NOT_SENT));
}
}
}
return sent;
}
bool gateway::process(paket &pkg)
{
bool processOk = false;
if(pkg.opcode != K_OP_LEER)
{
switch(state)
{
case Zustaende::IDLE:
// sollte nicht passieren
throw "gateway::process(): case Zustaende::IDLE";
break;
case Zustaende::WAIT_RAM_RRF:
if((pkg.opcode == K_OP_RFF) && (pkg.sender == ramId))
{
pkg = paket(K_OP_NXT, id, ramId, 0, 0, 0);
state = Zustaende::PROCESSING;
processOk = true;
PRINT_DEBUG("gateway - RFF erhalten");
}
else
{
// sollte nicht passieren
throw "gateway::process(): case Zustaende::WAIT_RAM_RRF";
}
break;
case Zustaende::PROCESSING:
if((pkg.opcode == K_OP_NXA) && (pkg.sender == ramId))
{
PRINT_DEBUG("gateway - NXA erhalten");
if(!pixelBuffer->full())
{
pixelBuffer->push(pkg);
// kein setzen von processOk, sendeBuffer wird intern verwaltet
}
else
{
// todo errorhandling
throw "gateway::process(): case Zustaende::PROCESSING, opcode == K_OP_NXA";
}
// sende weitere pixelanfragen an den ram (sofern noch platz im buffer ist)
if(!pixelBuffer->full())
{
pkg = paket(K_OP_NXT, id, ramId, 0, 0, 0);
if(!sendeBuffer->push(pkg))
{
// todo error
throw "gateway::process(): case Zustaende::PROCESSING, opcode == K_OP_NXA, sendeBuffer voll 1";
}
}
// sende alle verfuegbaren pixel an idle compute-module
while((!pixelBuffer->empty()) && (!computeListAllBusy()))
{
pixelBuffer->pop(pkg);
pkg = paket(K_OP_EXE, id, getAndSetNextIdleCompute(), pkg.xpos,
pkg.ypos, pkg.color); // neues paket, damit id automatisch angelegt wird
if(!sendeBuffer->push(pkg))
{
// todo error (z.B. throw, oder pkg zurueckschreiben und break
throw "gateway::process(): case Zustaende::PROCESSING, opcode == K_OP_NXA, sendeBuffer voll 2";
}
}
}
else if(pkg.opcode == K_OP_FIN)
{
PRINT_DEBUG("gateway - FIN erhalten");
setComputeIdle(pkg.sender);
// sende weitere pixelanfragen an den ram (sofern noch platz im buffer ist)
if(!pixelBuffer->full())
{
pkg = paket(K_OP_NXT, id, ramId, 0, 0, 0);
if(!sendeBuffer->push(pkg))
{
// todo error
throw "gateway::process(): case Zustaende::PROCESSING, opcode == K_OP_FIN, sendeBuffer voll 1";
}
}
// sende alle verfuegbaren pixel an idle compute-module
while((!pixelBuffer->empty()) && (!computeListAllBusy()))
{
pixelBuffer->pop(pkg);
pkg = paket(K_OP_EXE, id, getAndSetNextIdleCompute(), pkg.xpos,
pkg.ypos, pkg.color); // neues paket, damit id automatisch angelegt wird
if(!sendeBuffer->push(pkg))
{
// todo error (z.B. throw, oder pkg zurueckschreiben und break
throw "gateway::process(): case Zustaende::PROCESSING, opcode == K_OP_FIN, sendeBuffer voll 2";
}
}
}
else if((pkg.opcode == K_OP_END) && (pkg.sender == ramId))
{
PRINT_DEBUG("gateway - END erhalten");
//ggf. entfernen, da ram die info zuerst bekommen haben kann
if(pixelBuffer->empty() && computeListAllIdle())
{
pkg = paket(K_OP_WFI, id, ramId, 0, 0, 0);
state = Zustaende::WAIT_RAM_WFF;
processOk = true;
}
else
{
// todo error handling
throw "gateway::process(): case Zustaende::PROCESSING, opcode == K_OP_END";
}
}
else
{
// sollte nicht passieren
throw "gateway::process(): case Zustaende::PROCESSING, opcode == else";
}
break;
case Zustaende::WAIT_RAM_WFF:
if((pkg.opcode == K_OP_WFF) && (pkg.sender == ramId))
{
PRINT_DEBUG("gateway - Beende Process");
state = Zustaende::IDLE;
sc_stop();
// kein setzen von processOk, da kein paketsenden noetig
}
else
{
// sollte nicht passieren
throw "gateway::process(): case Zustaende::WAIT_RAM_WFF";
}
break;
default:
// sollte nicht passieren
throw "gateway::process(): case default";
break;
}
}
return processOk;
}
