InputSlot Class Reference

#include <Layer.hpp>

Inheritance diagram for InputSlot:

Collaboration diagram for InputSlot:

Public Member Functions
	InputSlot (Layer &owner, unsigned int slotIndex)
	~InputSlot ()
Layer &	GetOwningLayer () const
unsigned int	GetSlotIndex () const override
const OutputSlot *	GetConnectedOutputSlot () const
OutputSlot *	GetConnectedOutputSlot ()
const IConnectableLayer &	GetOwningIConnectableLayer () const override
IConnectableLayer &	GetOwningIConnectableLayer () override
void	SetConnection (OutputSlot *source)
	Links the slot to an output slot or breaks an existing link if passing nullptr. More...
void	Insert (Layer &layer)
const IOutputSlot *	GetConnection () const override
IOutputSlot *	GetConnection () override
void	SetTensorInfo (const TensorInfo tensorInfo) override
	Sets the TensorInfo for this InputSlot. More...
const TensorInfo &	GetTensorInfo () const override
	Gets the TensorInfo for this InputSlot. More...
bool	IsTensorInfoSet () const override
	Returns true if this InputSlot either has an overridden TensorInfo for this InputSlot that was set through a call to SetTensorInfo() or is Connected to an OutputSlot that has its TensorInfo set. More...
bool	IsTensorInfoOverridden () const override
	Returns true if this InputSlot has an overridden TensorInfo that was set through a call to SetTensorInfo(). More...

Additional Inherited Members
Protected Member Functions inherited from IInputSlot
	~IInputSlot ()
	Not user deletable. More...

Detailed Description

Definition at line 42 of file Layer.hpp.

Constructor & Destructor Documentation

InputSlot()

InputSlot ( Layer &  owner, unsigned int  slotIndex  )

inlineexplicit

Definition at line 45 of file Layer.hpp.

    : m_OwningLayer(owner)
    , m_Connection(nullptr)
    , m_SlotIndex(slotIndex)
    {}

~InputSlot()

~InputSlot ( )

inline

Definition at line 199 of file Layer.hpp.

{
    if (m_Connection != nullptr)
    {
        try
        {
            // Coverity fix: Disconnect() may throw uncaught exceptions.
            m_Connection->Disconnect(*this);
        }
        catch (const std::exception& e)
        {
            // Coverity fix: BOOST_LOG_TRIVIAL (typically used to report errors) may throw an
            // exception of type std::length_error.
            // Using stderr instead in this context as there is no point in nesting try-catch blocks here.
            std::cerr << "WARNING: An error has occurred when disconnecting an input slot: "
                      << e.what() << std::endl;
        }
    }
}

References OutputSlot::Disconnect().

Member Function Documentation

GetConnectedOutputSlot() [1/2]

OutputSlot* GetConnectedOutputSlot ( )

inline

Definition at line 57 of file Layer.hpp.

{ return m_Connection; }

GetConnectedOutputSlot() [2/2]

const OutputSlot* GetConnectedOutputSlot ( ) const

inline

Definition at line 56 of file Layer.hpp.

{ return m_Connection; }

Referenced by armnn::BuildAddMulAddTensorInfoLists(), armnn::ConnectedToLayerType(), armnn::ConnectedToLayerWithNCHW(), DebugLayer::CreateWorkload(), armnn::optimizations::pad_fold::FoldPadIntoLayer2dImpl(), GenerateUniqueInputName(), LayerWithParameters< StridedSliceDescriptor >::GetConnectedConstantAsInputTensors(), InputSlot::GetConnection(), armnn::GetLayerInOutDatatype(), LoadedNetwork::ImportOutputs(), InputSlot::Insert(), armnn::InsertConvertFp16ToFp32LayersBefore(), armnn::InsertConvertFp32ToFp16LayersAfter(), armnn::InsertDebugLayerAfter(), Graph::InsertNewLayer(), RefBackend::OptimizeSubgraphView(), NeonBackend::OptimizeSubgraphView(), ClBackend::OptimizeSubgraphView(), GpuFsaBackend::OptimizeSubgraphView(), armnn::RemoveReshapeLayer(), MaxMinIntoBoundedReluImpl::Run(), OptimizeConsecutiveReshapesImpl::Run(), ConvertConstPermuteLayersToConstLayers::Run(), PermuteAndBatchToSpaceAsDepthToSpaceImpl< PermuteType >::Run(), OptimizeInverseConversionsImpl::Run(), ConvertConstDequantisationLayersToConstLayersImpl::Run(), MoveTransposeUpImpl::Run(), OptimizeInversePermutesImpl< PermuteType >::Run(), MovePermuteUpImpl::Run(), SquashEqualSiblingsImpl< Comparable >::Run(), FuseBatchNorm< ConvLayer, ArmnnType, T >::Run(), and AddBroadcastReshapeLayerImpl::Run().

GetConnection() [1/2]

IOutputSlot * GetConnection ( ) const

inlineoverridevirtual

Implements IInputSlot.

Definition at line 219 of file Layer.hpp.

{ return GetConnectedOutputSlot(); }

References InputSlot::GetConnectedOutputSlot().

Referenced by LayerWithParameters< StridedSliceDescriptor >::GetConnectedConstantAsInputTensors(), InputSlot::GetTensorInfo(), and InputSlot::IsTensorInfoSet().

GetConnection() [2/2]

IOutputSlot* GetConnection ( )

overridevirtual

Implements IInputSlot.

GetOwningIConnectableLayer() [1/2]

IConnectableLayer & GetOwningIConnectableLayer ( ) const

overridevirtual

Implements IInputSlot.

Definition at line 599 of file Layer.cpp.

{
    return m_OwningLayer;
}

GetOwningIConnectableLayer() [2/2]

IConnectableLayer& GetOwningIConnectableLayer ( )

overridevirtual

Implements IInputSlot.

GetOwningLayer()

Layer& GetOwningLayer ( ) const

inline

Definition at line 53 of file Layer.hpp.

{ return m_OwningLayer; }

Referenced by Graph::AddCompatibilityLayers(), armnn::BuildAddMulAddTensorInfoLists(), armnn::ConnectedToLayerType(), armnn::ConnectedToLayerWithNCHW(), ConvertConstantToTosaOperator(), armnn::optimizations::pad_fold::FoldPadIntoLayer2dImpl(), GenerateUniqueOutputName(), GetTosaMapping(), Graph::InsertNewLayer(), armnn::RemoveReshapeLayer(), MaxMinIntoBoundedReluImpl::Run(), DeleteBroadcastToImpl::Run(), OptimizeConsecutiveReshapesImpl::Run(), ConvertConstPermuteLayersToConstLayers::Run(), PermuteAndBatchToSpaceAsDepthToSpaceImpl< PermuteType >::Run(), ConvertConstDequantisationLayersToConstLayersImpl::Run(), OptimizeInverseConversionsImpl::Run(), OptimizeInversePermutesImpl< PermuteType >::Run(), MoveTransposeUpImpl::Run(), MovePermuteUpImpl::Run(), SquashEqualSiblingsImpl< Comparable >::Run(), FuseBatchNorm< ConvLayer, ArmnnType, T >::Run(), FoldPadIntoConvolution2dImpl::Run(), and FoldPadIntoDepthwiseConvolution2dImpl::Run().

GetSlotIndex()

unsigned int GetSlotIndex ( ) const

inlineoverridevirtual

Implements IInputSlot.

Definition at line 54 of file Layer.hpp.

{ return m_SlotIndex; }

Referenced by Graph::AddCompatibilityLayers(), GetTosaMapping(), and armnn::RemoveReshapeLayer().

GetTensorInfo()

const TensorInfo & GetTensorInfo ( ) const

overridevirtual

Gets the TensorInfo for this InputSlot.

If the InputSlot's TensorInfo has not been set then this will get the TensorInfo from the Connected TensorInfo.

Implements IInputSlot.

Definition at line 614 of file Layer.cpp.

{
    if (m_OverriddenTensorInfo.has_value())
    {
        return m_OverriddenTensorInfo.value();
    }
    else
    {
        return GetConnection()->GetTensorInfo();
    }
}

References InputSlot::GetConnection(), and IOutputSlot::GetTensorInfo().

Referenced by armnn::BuildAddMulAddTensorInfoLists(), armnn::ConnectedToLayerType(), ConvertConstantToTosaOperator(), LayerWithParameters< StridedSliceDescriptor >::GetConnectedConstantAsInputTensors(), Layer::GetDataType(), LoadedNetwork::ImportOutputs(), PermuteAndBatchToSpaceAsDepthToSpaceImpl< PermuteType >::Run(), Convolution3dLayer::SerializeLayerParameters(), DepthwiseConvolution2dLayer::SerializeLayerParameters(), Convolution2dLayer::SerializeLayerParameters(), ElementwiseBaseLayer::ValidateTensorShapesFromInputs(), QuantizeLayer::ValidateTensorShapesFromInputs(), ChannelShuffleLayer::ValidateTensorShapesFromInputs(), ActivationLayer::ValidateTensorShapesFromInputs(), ConvertFp32ToFp16Layer::ValidateTensorShapesFromInputs(), FillLayer::ValidateTensorShapesFromInputs(), SliceLayer::ValidateTensorShapesFromInputs(), ShapeLayer::ValidateTensorShapesFromInputs(), InstanceNormalizationLayer::ValidateTensorShapesFromInputs(), SwitchLayer::ValidateTensorShapesFromInputs(), L2NormalizationLayer::ValidateTensorShapesFromInputs(), TransposeLayer::ValidateTensorShapesFromInputs(), AbsLayer::ValidateTensorShapesFromInputs(), DebugLayer::ValidateTensorShapesFromInputs(), CastLayer::ValidateTensorShapesFromInputs(), MemCopyLayer::ValidateTensorShapesFromInputs(), MemImportLayer::ValidateTensorShapesFromInputs(), MergeLayer::ValidateTensorShapesFromInputs(), Pooling3dLayer::ValidateTensorShapesFromInputs(), NormalizationLayer::ValidateTensorShapesFromInputs(), DequantizeLayer::ValidateTensorShapesFromInputs(), PermuteLayer::ValidateTensorShapesFromInputs(), Pooling2dLayer::ValidateTensorShapesFromInputs(), ConvertFp16ToFp32Layer::ValidateTensorShapesFromInputs(), FakeQuantizationLayer::ValidateTensorShapesFromInputs(), ResizeLayer::ValidateTensorShapesFromInputs(), BatchToSpaceNdLayer::ValidateTensorShapesFromInputs(), RsqrtLayer::ValidateTensorShapesFromInputs(), FloorLayer::ValidateTensorShapesFromInputs(), SoftmaxLayer::ValidateTensorShapesFromInputs(), StackLayer::ValidateTensorShapesFromInputs(), LogSoftmaxLayer::ValidateTensorShapesFromInputs(), MeanLayer::ValidateTensorShapesFromInputs(), PadLayer::ValidateTensorShapesFromInputs(), ReshapeLayer::ValidateTensorShapesFromInputs(), Convolution3dLayer::ValidateTensorShapesFromInputs(), DepthwiseConvolution2dLayer::ValidateTensorShapesFromInputs(), FullyConnectedLayer::ValidateTensorShapesFromInputs(), Convolution2dLayer::ValidateTensorShapesFromInputs(), GatherNdLayer::ValidateTensorShapesFromInputs(), ScatterNdLayer::ValidateTensorShapesFromInputs(), TileLayer::ValidateTensorShapesFromInputs(), BatchMatMulLayer::ValidateTensorShapesFromInputs(), ElementwiseBinaryLayer::ValidateTensorShapesFromInputs(), StridedSliceLayer::ValidateTensorShapesFromInputs(), GatherLayer::ValidateTensorShapesFromInputs(), ElementwiseUnaryLayer::ValidateTensorShapesFromInputs(), ReduceLayer::ValidateTensorShapesFromInputs(), ReverseV2Layer::ValidateTensorShapesFromInputs(), DetectionPostProcessLayer::ValidateTensorShapesFromInputs(), ArgMinMaxLayer::ValidateTensorShapesFromInputs(), ComparisonLayer::ValidateTensorShapesFromInputs(), SpaceToBatchNdLayer::ValidateTensorShapesFromInputs(), TransposeConvolution2dLayer::ValidateTensorShapesFromInputs(), SpaceToDepthLayer::ValidateTensorShapesFromInputs(), LogicalBinaryLayer::ValidateTensorShapesFromInputs(), PreluLayer::ValidateTensorShapesFromInputs(), DepthToSpaceLayer::ValidateTensorShapesFromInputs(), LstmLayer::ValidateTensorShapesFromInputs(), UnidirectionalSequenceLstmLayer::ValidateTensorShapesFromInputs(), ConcatLayer::ValidateTensorShapesFromInputs(), BatchNormalizationLayer::ValidateTensorShapesFromInputs(), QuantizedLstmLayer::ValidateTensorShapesFromInputs(), and QLstmLayer::ValidateTensorShapesFromInputs().

Insert()

void Insert

(

Layer &

layer

)

Definition at line 53 of file Layer.cpp.

{
    if (layer.GetNumOutputSlots() != 1)
    {
        throw armnn::Exception("layer must have one output slot.");
    }
 
    OutputSlot* const prevSlot = GetConnectedOutputSlot();
 
    if (prevSlot != nullptr)
    {
        // Disconnects parent from this.
        prevSlot->Disconnect(*this);
 
        AssertNumberOfInputSlots(layer);
 
        // Connects inserted layer to parent.
        int idx = prevSlot->Connect(layer.GetInputSlot(0));
        prevSlot->SetEdgeStrategy(armnn::numeric_cast<unsigned int>(idx), EdgeStrategy::Undefined);
 
        // Sets tensor info for inserted layer.
        const TensorInfo& tensorInfo = prevSlot->GetTensorInfo();
        layer.GetOutputHandler().SetTensorInfo(tensorInfo);
    }
 
    // Connects inserted layer to this.
    layer.GetOutputSlot(0).Connect(*this);
    layer.GetOutputSlot(0).SetEdgeStrategy(0, EdgeStrategy::Undefined);
}

References armnn::AssertNumberOfInputSlots(), OutputSlot::Connect(), OutputSlot::Disconnect(), InputSlot::GetConnectedOutputSlot(), Layer::GetInputSlot(), Layer::GetNumOutputSlots(), Layer::GetOutputHandler(), Layer::GetOutputSlot(), OutputSlot::GetTensorInfo(), OutputSlot::SetEdgeStrategy(), OutputHandler::SetTensorInfo(), and armnn::Undefined.

Referenced by Graph::InsertNewLayer().

IsTensorInfoOverridden()

bool IsTensorInfoOverridden ( ) const

overridevirtual

Returns true if this InputSlot has an overridden TensorInfo that was set through a call to SetTensorInfo().

Implements IInputSlot.

Definition at line 631 of file Layer.cpp.

{
    return m_OverriddenTensorInfo.has_value();
}

IsTensorInfoSet()

bool IsTensorInfoSet ( ) const

overridevirtual

Returns true if this InputSlot either has an overridden TensorInfo for this InputSlot that was set through a call to SetTensorInfo() or is Connected to an OutputSlot that has its TensorInfo set.

Implements IInputSlot.

Definition at line 626 of file Layer.cpp.

{
    return m_OverriddenTensorInfo.has_value() || (GetConnection() && GetConnection()->IsTensorInfoSet());
}

References InputSlot::GetConnection(), and IOutputSlot::IsTensorInfoSet().

SetConnection()

void SetConnection ( OutputSlot *  source )

inline

Links the slot to an output slot or breaks an existing link if passing nullptr.

Definition at line 63 of file Layer.hpp.

    {
        if (m_Connection != nullptr && source != nullptr)
        {
            throw InvalidArgumentException("Tried to connect an output slot to an input slot, "
                "but the latter already has a connection");
        }
        m_Connection = source;
    }

Referenced by OutputSlot::Connect(), and OutputSlot::Disconnect().

SetTensorInfo()

void SetTensorInfo ( const TensorInfo  tensorInfo )

overridevirtual

Sets the TensorInfo for this InputSlot.

This can be used to override the TensorInfo and if set will be returned instead of the TensorInfo for the Connected OutputSlot.

Implements IInputSlot.

Definition at line 609 of file Layer.cpp.

{
    m_OverriddenTensorInfo = Optional<TensorInfo>(tensorInfo);
}

Referenced by Graph::Graph(), and armnn::RemoveReshapeLayer().

---

The documentation for this class was generated from the following files:

• src/armnn/Layer.hpp
• src/armnn/Layer.cpp