StreamRelayLayer¶

Package: inet.protocolelement.redundancy

compound module StreamRelayLayer

Combines a stream merger and a stream splitter module into a stream relay layer. For incoming packets, the identified streams are merged by the stream merger. For outgoing packets, the requested streams are split by the stream splitter.

Usage diagram¶

Inheritance diagram¶

Used in compound modules¶

Name	Type	Description
StreamPolicyLayer	compound module	(no description)

Parameters¶

Name	Type	Default value	Description
interfaceTableModule	string

Properties¶

Name	Value	Description
display	i=block/layer

Gates¶

Name	Direction	Size	Description
upperLayerIn	input
upperLayerOut	output
lowerLayerIn	input
lowerLayerOut	output

Unassigned submodule parameters¶

Name	Type	Default value	Description
merger.displayStringTextFormat	string	“dropped {numDroppedPackets}/{numProcessedPackets} pk ({droppedTotalLength}/{processedTotalLength})”	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
merger.backpressure	bool	false
merger.mapping	object	{}	Map of input streams to output streams. An empty string means no stream. For example, {s0: “s1”, …}
merger.bufferSize	int	10	Window size for sequence numbers per stream.
splitter.displayStringTextFormat	string	“processed {numProcessedPackets} pk ({processedTotalLength})”	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
splitter.mapping	object	{}	Map from input stream names to array of output stream names, empty string means no stream

Source code¶

//
// Combines a stream merger and a stream splitter module into a
// stream relay layer. For incoming packets, the identified streams are merged
// by the stream merger. For outgoing packets, the requested streams are split
// by the stream splitter.
//
module StreamRelayLayer like IProtocolLayer
{
    parameters:
        string interfaceTableModule;
        *.interfaceTableModule = default(this.interfaceTableModule);
        @display("i=block/layer");
    gates:
        input upperLayerIn;
        output upperLayerOut;
        input lowerLayerIn;
        output lowerLayerOut;
    submodules:
        merger: <default("StreamMerger")> like IPacketFilter if typename != "" {
            @display("p=200,150;i=block/join");
        }
        splitter: <default("StreamSplitter")> like IPacketPusher if typename != "" {
            @display("p=500,150;i=block/fork");
        }
    connections:
        upperLayerIn --> { @display("m=n"); } --> splitter.in;
        splitter.out --> { @display("m=s"); } --> lowerLayerOut;

        lowerLayerIn --> { @display("m=s"); } --> merger.in;
        merger.out --> { @display("m=n"); } --> upperLayerOut;
}

File: src/inet/protocolelement/redundancy/StreamRelayLayer.ned