ConnectivityAgentError L1InterfaceStub::allocateChannelLocally(const UInt32 channel_id,
tRequestedChannelInfo const& req_info)
{
LOG4CPLUS_TRACE_METHOD(logger, "L1InterfaceStub::allocateChannelLocally"
" channel_id" + convertIntegerToString(channel_id));
ConnectivityAgentError result;
assert(mL1ChannelRegistry.find(channel_id) == mL1ChannelRegistry.end());
assert(req_info.mState == E_TRANSITION_AGENT || req_info.mState == E_TRANSITION_CLIENT);
///>FIXME Set up correct thresholds
tL1ChannelInfo info;
info.mType = req_info.mType;
info.mClientDir = req_info.mClientDir;
info.mState = req_info.mState;
info.mLowerThresholdTime = 0;
info.mUpperThresholdTime = 0xFFFFFFFF;
result = CChannelAllocator::getInstance()->allocateChannel(info.mType, channel_id, info);
LOG4CPLUS_INFO(logger, "L1InterfaceStub::allocateChannelLocally(): CChannelAllocator ret = "
+ convertIntegerToString((int)result.getCode()));
/// @todo correct processing of error code and return values. PIlin, 31.08.12
//ret = ERR_OK;
if (result.isNoError())
{
mL1ChannelRegistry.insert(std::pair<UInt32,tL1ChannelInfo >(channel_id, info));
}
return result;
}
ConnectivityAgentError CTransmitDispatcher::openChannel(const UInt32 channel_id,
const TChannelPriority prio,
iviLink::ConnectivityAgent::L1::IBufferProducer& bufferProducer)
{
CSource* pSource = NULL;
LOG4CPLUS_TRACE(logger, "CTransmitDispatcher::openChannel(chID = "
+ convertIntegerToString(channel_id)
+ ", prio = " + convertIntegerToString((int) prio) + ", bufProd = "
+ convertIntegerToString((intptr_t) &bufferProducer) + ")");
ConnectivityAgentError result = ConnectivityAgentError::NoError();
mRegistryMutex.lock();
TSourceList::iterator iter = mRegistry[static_cast<UInt8>(prio)].begin();
while (iter != mRegistry[static_cast<UInt8>(prio)].end())
{
if (channel_id == static_cast<CSource*>(*iter)->getChannelID())
{
result.setErrorCode(ConnectivityAgentError::ERROR_CHANNEL_BUSY);
break;
}
++iter;
}
if (iter == mRegistry[static_cast<UInt8>(prio)].end())
{
pSource = new CSource(channel_id, mEventSem);
LOG4CPLUS_INFO(logger, "CTransmitDispatcher::openChannel() number = "
+ convertIntegerToString(channel_id)
+ " prio = " + convertIntegerToString(static_cast<UInt8>(prio))
+ " opening new channel");
pSource->registerProducer(&bufferProducer);
bufferProducer.registerConsumer(pSource);
mRegistry[prio].push_back(pSource);
}
mRegistryMutex.unlock();
return result;
}
ConnectivityAgentError L1InterfaceStub::endAllocateChannel(const UInt32 channel_id,
DirectionID& dirId)
{
ConnectivityAgentError result = ConnectivityAgentError::NoError();
mRegistryMutex.lock();
{
tChannelsRegistryMap::iterator iter = mL1ChannelRegistry.find(channel_id);
if (iter != mL1ChannelRegistry.end())
{
tL1ChannelInfo & info = iter->second;
if (E_TRANSITION_AGENT == info.mState)
{
result.setErrorCode(ConnectivityAgentError::ERROR_DEFERRED);
}
LOG4CPLUS_INFO(logger, "L1InterfaceStub::endAllocateChannel(): E_OPERATIONAL");
info.mState = E_OPERATIONAL;
dirId = info.mClientDir;
}
else
{
// SEQ_E_4
result.setErrorCode(ConnectivityAgentError::ERROR_NOT_FOUND);
LOG4CPLUS_ERROR(logger, "L1InterfaceStub::endAllocateChannel(): ERR_NOTFOUND");
}
}
mRegistryMutex.unlock();
return result;
}
ConnectivityAgentError CCarrierAdapter::processFrame(iviLink::ConnectivityAgent::HAL::Frame & frame)
{
ConnectivityAgentError processResult = ConnectivityAgentError::NoError();
mFrameProcessingCondVar.lock();
while (!mIsFrameProcessingAllowed)
{
mFrameProcessingCondVar.wait();
}
mFrameProcessingCondVar.unlock();
mFrameReceiverLock.lock();
if (mpFrameReceiver)
{
processResult = mpFrameReceiver->receiveFrame(frame);
if(processResult.isNoError() || processResult.getCode() == ConnectivityAgentError::ERROR_RESEND_ACK)
{
if (!frame.isACK())
{
sendACK(frame);
}
}
else
{
LOG4CPLUS_INFO(logger, "CCarrierAdapter::receiveFrame ERROR mpFrameReceiver->receiveFrame returned "
+ convertIntegerToString((int)processResult.getCode()) + ". ACK is not send");
}
}
mFrameReceiverLock.unlock();
return processResult;
}
ConnectivityAgentError CTcpCarrierAdapter::receiveRawArray(UInt8* pArray, UInt32 & size)
{
LOG4CPLUS_TRACE_METHOD(logger, __PRETTY_FUNCTION__);
ssize_t n = -1;
int saved_errno = 0;
ConnectivityAgentError receiveResult = ConnectivityAgentError::NoError();
mSocketMutex.lockRead();
{
do {
n = ::recv(mSocket, pArray, size, 0);
} while (n == -1 && errno == EINTR);
saved_errno = errno;
}
mSocketMutex.unlockRead();
if (n > 0)
{
size = n;
}
else
{
LOG4CPLUS_WARN(logger, "CTcpCarrierAdapter::receiveRawArray() recv error: "
+ convertIntegerToString(saved_errno) + strerror(saved_errno));
// connection lost
mSelfpipe.signal(eGameOver);
receiveResult.setErrorCode(ConnectivityAgentError::ERROR_BROKEN_PIPE);
}
return receiveResult;
}
ConnectivityAgentError CTarget::receiveFrame(const iviLink::ConnectivityAgent::HAL::Frame& frame)
{
LOG4CPLUS_TRACE(logger, " CTarget::receiveFrame(): channel " + convertIntegerToString(mChannelID));
static bool firstFlag = true;
ConnectivityAgentError result;
assert(mChannelID == frame.mFrameHeader.channel_id);
if((!firstFlag)&&(!mCarrierReplaced)&&(frame.mFrameHeader.number != mLastFrameNr + 1))
{
LOG4CPLUS_ERROR(logger, "CTarget::receiveFrame error - ERR_WRONG_FRAME_SEQUENCE: frame.mFrameHeader.number = "
+ convertIntegerToString(frame.mFrameHeader.number) + ", mLastFrameNr + 1 = "
+ convertIntegerToString(mLastFrameNr + 1));
if(frame.mFrameHeader.number<=mLastFrameNr)
{
result.setErrorCode(ConnectivityAgentError::ERROR_RESEND_ACK);
}
else
{
result.setErrorCode(ConnectivityAgentError::ERROR_WRONG_FRAME_SEQUENCE);
}
}
else if (mBufferQueue.empty())
{
LOG4CPLUS_ERROR(logger, "CTarget::receiveFrame error - mBufferQueue.empty()");
result.setErrorCode(ConnectivityAgentError::ERROR_NO_FREE_BUFFERS_LEFT);
}
else
{
mBufferQueueMutex.lock();
Buffer* buf = mBufferQueue.front();
mBufferQueue.pop_front();
mBufferQueueMutex.unlock();
assert(buf);
copyFromFrame(frame, *buf);
assert(mpBufferConsumer);
result = mpBufferConsumer->consumeBuffer(buf);
if (result.isNoError())
{
if(firstFlag)
{
firstFlag =false;
}
if(mCarrierReplaced)
{
mCarrierReplaced = false;
}
mLastFrameNr = frame.mFrameHeader.number;
}
}
return result;
}
void L1InterfaceStub::processServiceDeallocateRequest(CDataAccessor & accessor)
{
UInt32 channel_id = accessor.getChannelID();
LOG4CPLUS_INFO(logger, "L1InterfaceStub::processServiceDeallocateRequest() => "
"Channel deallocate request id = " + convertIntegerToString(channel_id));
ConnectivityAgentError ret = deallocateChannel(channel_id );
accessor.setOpCode(E_DEALLOCATE_CHANNEL_RESP);
UInt32 data = ret.getCode();
accessor.setData(reinterpret_cast<UInt8 *>(&data), sizeof(UInt32));
sendRequest(accessor);
if (ret.isNoError())
{
LOG4CPLUS_INFO(logger, "L1InterfaceStub::processServiceDeallocateRequest() => "
"channel successfully deallocated. "
"Notifying client");
iviLink::Ipc::DirectionID dirId;
bool found = false;
mRegistryMutex.lock();
tChannelsRegistryMap::iterator iter = mL1ChannelRegistry.find(accessor.getChannelID());
if (mL1ChannelRegistry.end() != iter)
{
dirId = iter->second.mClientDir;
found = true;
LOG4CPLUS_INFO(logger, "L1InterfaceStub::processServiceDeallocateRequest() => "
"channel found in registry - removing");
mL1ChannelRegistry.erase(accessor.getChannelID());
}
mRegistryMutex.unlock();
if (found)
{
accessor.setOpCode(E_DEALLOCATE_CHANNEL_NTF);
UInt8* buf = new UInt8[accessor.getObjectSize()];
accessor.copyToRawArray(buf);
BaseError err = mpIpc->asyncRequest(mMsgIdGen.next(),
buf, accessor.getObjectSize(), &dirId);
if (!err.isNoError())
{
LOG4CPLUS_WARN(logger, static_cast<std::string>(err));
}
delete[] buf;
}
} // ret == OK
}
void CCarrierAdapter::haveData()
{
LOG4CPLUS_TRACE_METHOD(logger, __PRETTY_FUNCTION__);
UInt8* pArray = reinterpret_cast<UInt8*>(&mFrame);
// Reading as many as possible
UInt32 size = sizeof(mFrame) - mFilledSize;
ConnectivityAgentError receiveResult = receiveRawArray(pArray + mFilledSize, size);
if (!receiveResult.isNoError())
{
return;
}
UInt32 saved_size = mFilledSize;
mFilledSize += size;
while (mFilledSize >= sizeof(mFrame.mFrameHeader))
{
// header done
if (saved_size < sizeof(mFrame.mFrameHeader))
{
// header become ready right now
CFrameConverter::arrayToFrame(pArray, &mFrame);
}
const UInt32 full_size = mFrame.getSize() + sizeof(iviLink::ConnectivityAgent::HAL::Frame::FrameHeader);
if (full_size <= mFilledSize)
{
// frame done
// ! The error returned is not processed
processFrame(mFrame);
memmove(pArray, pArray + full_size, mFilledSize - full_size);
mFilledSize -= full_size;
saved_size = 0;
}
else
{
break;
}
} // while
}
ConnectivityAgentError CTcpCarrierAdapter::CSelfpipe::readSignal(tSignal& signal)
{
LOG4CPLUS_TRACE(logger, __PRETTY_FUNCTION__);
ConnectivityAgentError error = ConnectivityAgentError::NoError();
ssize_t res = -1;
do {
res = read(mSelfpipe[0], &signal, sizeof(signal));
} while (res == -1 && errno == EINTR);
if (res == -1)
{
int saved_errno = errno;
LOG4CPLUS_ERROR(logger, "selfpipe write error: "
+ convertIntegerToString(saved_errno) + strerror(saved_errno));
error.setErrorCode(ConnectivityAgentError::ERROR_OTHER);
}
return error;
}
ConnectivityAgentError CTcpCarrierAdapter::waitHandshakeState(EHandshakeState state)
{
LOG4CPLUS_TRACE_METHOD(logger, __PRETTY_FUNCTION__);
ConnectivityAgentError waitResult = ConnectivityAgentError::NoError();
mHandshakeStateCondVar.lock();
{
int rc = 0;
timespec ts = CCondVar::calcAbsTimeout(mHandshakeTimeout);
while (mHandshakeState != state && rc == 0)
{
rc = mHandshakeStateCondVar.waitTimeout(ts);
}
if (rc != 0 || mHandshakeState != state)
waitResult.setErrorCode(ConnectivityAgentError::ERROR_HANDSHAKE_FAILED);
}
mHandshakeStateCondVar.unlock();
return waitResult;
}
bool L1InterfaceStub::processClientAllocateRequest(CDataAccessor & accessor,
const iviLink::Ipc::DirectionID dirId)
{
LOG4CPLUS_TRACE_METHOD(logger, __PRETTY_FUNCTION__);
const UInt32 channel_id = accessor.getChannelID();
if(CA_SERVICE_CHANNEL == channel_id)
{
// SEQ_E_5
LOG4CPLUS_WARN(logger, "Channel CA_SERVICE_CHANNEL is not allowed to be open");
accessor.resetData();
accessor.setErrorCode(ConnectivityAgentError::ERROR_CHANNEL_BUSY);
return true;
}
UInt32 prio = 0;
memcpy(&prio, accessor.getData(), accessor.getDataSize());
LOG4CPLUS_INFO(logger, "L1InterfaceStub::processClientAllocateRequest() => "
"Allocate Channel Request: ChID = "
+ convertIntegerToString(channel_id) + ", prio = " + convertIntegerToString(prio));
iviLink::Ipc::DirectionID tmpDirId = dirId;
ConnectivityAgentError err = ConnectivityAgentError(ConnectivityAgentError::ERROR_OTHER);
mRequestedMapMutex.lock();
mRegistryMutex.lock();
{
err = beginAllocateChannel(static_cast<TChannelPriority>(prio), channel_id, true,
tmpDirId);
accessor.setErrorCode(err.getCode());
if (err.isNoError())
{
LOG4CPLUS_INFO(logger, "L1InterfaceStub::processClientAllocateRequest() => "
"all ok, sending request to other side" );
err = sendRequest(accessor);
}
}
mRegistryMutex.unlock();
mRequestedMapMutex.unlock();
if (err.isNoError()) //> all ok
{
return false;
}
else
{
// something wrong, need message about error
// SEQ_E_5
assert(err.getCode() != ConnectivityAgentError::ERROR_DEFERRED);
accessor.resetData();
accessor.setErrorCode(err.getCode());
return true;
}
}
ConnectivityAgentError L1InterfaceStub::receiveData(Buffer & buffer, UInt32 channel_id)
{
LOG4CPLUS_TRACE(logger, "L1InterfaceStub::receiveData() => channel " +
convertIntegerToString(channel_id));
UInt32 offset = 0;
CDataAccessor accessor;
ConnectivityAgentError result;
// TODO ipc errors processing
// TODO incorrect data processing
assert(buffer.getFilledSize() <= buffer.getMaxSize());
LOG4CPLUS_INFO(logger, "L1InterfaceStub::receiveData() => buf size "
+ convertIntegerToString(buffer.getFilledSize()));
if(channel_id == CA_SERVICE_CHANNEL)
{
//> If data received from service channel - process service request
do
{
UInt32 begin = offset;
UInt16 buf_length = ByteOrder::ntoh16(*reinterpret_cast<UInt16*>
(buffer.getData() + offset));
offset += 2;
LOG4CPLUS_INFO(logger, "L1InterfaceStub::receiveData() => buf_length " +
convertIntegerToString(buf_length));
assert(begin + buf_length <= buffer.getFilledSize());
UInt32 operation = ByteOrder::ntoh32(*reinterpret_cast<UInt32*>
(buffer.getData() + offset));
offset += 4;
accessor.setOpCode(operation);
UInt32 channel_id = ByteOrder::ntoh32(*reinterpret_cast<UInt32*>
(buffer.getData() + offset));
offset += 4;
accessor.setChannelID(channel_id);
UInt32 data_size = ByteOrder::ntoh32(*reinterpret_cast<UInt32*>
(buffer.getData() + offset));
offset += 4;
UInt32 error_code = ByteOrder::ntoh32(*reinterpret_cast<UInt32*>
(buffer.getData() + offset));
offset += 4;
accessor.setErrorCode(error_code);
accessor.setData(buffer.getData() + offset, data_size);
offset += data_size;
accessor.printContent();
///>Process service request
tServiceCallbacksMap::iterator iter =
mServiceCallbacksMap.find(static_cast<tOpCode>(operation));
if (iter !=mServiceCallbacksMap.end())
{
///> This funny language structure is just callback invocation.
///> Not obvious, huh? =)
(this->*iter->second)(accessor);
result.setNoError();
}
else
{
LOG4CPLUS_WARN(logger, "L1InterfaceStub::receiveData() => "
"UNKNOWN SERVICE REQUEST = "
+ convertIntegerToString(operation) + "!!!");
}
} while (offset < buffer.getFilledSize());
LOG4CPLUS_INFO(logger, "L1InterfaceStub::receiveData() => offset "
+ convertIntegerToString(offset) + "!!!");
assert(buffer.getFilledSize() == offset);
}
else
{
//> Or pack to accessor and send to client
accessor.setOpCode(E_RECEIVE_DATA_NTF);
accessor.setChannelID(channel_id);
assert (buffer.getFilledSize() > 0);
accessor.setData(buffer.getData(),buffer.getFilledSize());
accessor.printContent();
UInt8* buf = new UInt8[accessor.getObjectSize()];
accessor.copyToRawArray(buf);
BaseError ipcError = mpIpc->asyncRequest(mMsgIdGen.next(),
buf, accessor.getObjectSize(), &mL1ChannelRegistry[channel_id].mClientDir); // TODO use find, and not []
delete [] buf;
if (ipcError.isNoError())
{
result.setNoError();
}
else
{
result.setErrorCode(ConnectivityAgentError::ERROR_REQUEST_FAILED);
}
}
return result;
}
ConnectivityAgentError L1InterfaceStub::beginAllocateChannel(const TChannelPriority prio,
const UInt32 channel_id, const bool client_side, DirectionID& dirId)
{
LOG4CPLUS_TRACE_METHOD(logger, "L1InterfaceStub::beginAllocateChannel(" +
convertIntegerToString(channel_id) + ", "
"client_side" + std::string(client_side ? "true" : "false") +")");
ConnectivityAgentError result;
//if channel wasn't opened yet
if (mL1ChannelRegistry.find(channel_id) == mL1ChannelRegistry.end())
{
tRequestedChannelsMap::iterator iter = mRequestedMap.find(channel_id);
if (iter == mRequestedMap.end()) // if channel wasn't requested yet ->request channel
{
// First call on SEQ_A and SEQ_B or SEQ_A DEFERRED
tRequestedChannelInfo info;
info.mType = prio;
info.mState = (client_side ? E_TRANSITION_CLIENT : E_TRANSITION_AGENT);
info.mClientDir = dirId;
assert((client_side && dirId != -1) || (!client_side && dirId == -1));
LOG4CPLUS_INFO(logger, "L1InterfaceStub::beginAllocateChannel() =>insert request"
" channel_id " + convertIntegerToString(channel_id) +
" mState " + std::string(info.mState == E_TRANSITION_CLIENT ?
"E_TRANSITION_CLIENT" : "E_TRANSITION_AGENT"));
mRequestedMap.insert(std::pair<UInt32, tRequestedChannelInfo>(channel_id, info));
result = (client_side ? ConnectivityAgentError::NoError() :
ConnectivityAgentError(ConnectivityAgentError::ERROR_DEFERRED));
}
else
{
tRequestedChannelInfo & info = iter->second;
//if channel was requested by other side
if (!client_side || (client_side && info.mState == E_TRANSITION_AGENT))
{
// SEQ_A DEFERRED or call from other side
LOG4CPLUS_INFO(logger, "L1InterfaceStub::beginAllocateChannel() =>"
"Opening channel locally");
if (client_side)
{
info.mClientDir = dirId;
}
else
{
dirId = info.mClientDir;
}
result = allocateChannelLocally(channel_id, info);
assert(result.getCode() != ConnectivityAgentError::ERROR_DEFERRED);
mRequestedMap.erase(channel_id);
}
else //channel was requested by Client Application not the first time
{
// SEQ_E_1
LOG4CPLUS_ERROR(logger, "L1InterfaceStub::beginAllocateChannel() => ERROR: "
"allocation is in progress! ");
result.setErrorCode(ConnectivityAgentError::ERROR_ALLOCATION_IN_PROGRESS);
}
}
}
else //channel already opened
{
// SEQ_E_2
LOG4CPLUS_ERROR(logger, "L1InterfaceStub::beginAllocateChannel() => ERROR: channel "
"already exists! ");
result.setErrorCode(ConnectivityAgentError::ERROR_CHANNEL_BUSY);
}
return result;
}
ConnectivityAgentError CTcpCarrierAdapter::makeHandshake()
{
LOG4CPLUS_TRACE_METHOD(logger, __PRETTY_FUNCTION__);
ConnectivityAgentError handshakeResult = ConnectivityAgentError::NoError();
mHandshakeStateCondVar.lock();
if (mHandshakeState != eHandshakeBefore)
{
LOG4CPLUS_ERROR(logger,"wrong handshake state" );
handshakeResult.setErrorCode(ConnectivityAgentError::ERROR_HANDSHAKE_FAILED);
}
mHandshakeStateCondVar.unlock();
if (!handshakeResult.isNoError())
return handshakeResult;
// will return this in case of any handshake fail
ConnectivityAgentError failedResult(ConnectivityAgentError::ERROR_HANDSHAKE_FAILED);
const UInt32 size = 50;
UInt8 pAddr[size];
memset(pAddr, 0, size);
strncpy(reinterpret_cast<char*>(pAddr), this->getRemoteAddress(), size);
if (mConnectionInfo.serverSocket)
{
LOG4CPLUS_INFO(logger, "CTcpCarrierAdapter::makeHandshake(): send AXIS ...");
handshakeAndVerStrAxis[4] = IVILINK_VERSION_MAJOR;
handshakeAndVerStrAxis[5] = IVILINK_VERSION_MINOR;
if (!sendPreparedArray(handshakeAndVerStrAxis, sizeof(handshakeAndVerStrAxis)).isNoError())
{
LOG4CPLUS_ERROR(logger,"handshake AXIS send failed" );
return failedResult;
}
if (!waitHandshakeState(eHandshakeA).isNoError())
{
LOG4CPLUS_ERROR(logger,"handshake not state A");
return failedResult;
}
if (!sendPreparedArray(pAddr, sizeof(pAddr)).isNoError())
{
LOG4CPLUS_ERROR(logger,"handshake send addr failed");
return failedResult;
}
if (!waitHandshakeState(eHandshakeDone).isNoError())
{
LOG4CPLUS_ERROR(logger,"handshake not state done");
return failedResult;
}
mGenderType = eServerGender;
}
else
{
if (!waitHandshakeState(eHandshakeA).isNoError())
{
LOG4CPLUS_ERROR(logger,"handshake not state A");
return failedResult;
}
handshakeAndVerStrSixa[4] = IVILINK_VERSION_MAJOR;
handshakeAndVerStrSixa[5] = IVILINK_VERSION_MINOR;
if (!sendPreparedArray(handshakeAndVerStrSixa, sizeof(handshakeAndVerStrSixa)).isNoError())
{
LOG4CPLUS_ERROR(logger,"handshake SIXA send failed" );
return failedResult;
}
if (!waitHandshakeState(eHandshakeDone).isNoError())
{
LOG4CPLUS_ERROR(logger,"handshake not state done");
return failedResult;
}
if (!sendPreparedArray(pAddr, sizeof(pAddr)).isNoError())
{
LOG4CPLUS_ERROR(logger,"handshake send addr failed");
return failedResult;
}
mGenderType = eClientGender;
}
return ConnectivityAgentError::NoError();
}