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project_structure.md

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Package Structure

Package Structure of PiCN.

PiCN

  • Executable: This package contains starter scripts for network nodes and tools for management and content retrieval
    • Fetch: Tool to fetch a high-level object (resolves chunking)
    • ICNDataRepository: Sets up a data repository
    • ICNForwarder: Sets up a forwarder
    • Mgmt: Tool to send a management command to a node
    • NFNForwarder: Sets up a NFN computation node
    • SimpleFetch: Tool to fetch a single content object (without chunking)
  • Layers: Contains one packet per layer
    • ChunkLayer: Chunking layer
    • ICNLayer: CCN network layer
      • Content Store: CS data structure
      • ForwardingInformationBase: FIB data structure
      • PendingInterest Table: PIT data structure
    • LinkLayer: Link layer (face management)
    • NFNLayer: Computation (NFN) layer
      • NFNEvaluator: NFN execution engine
      • Parser: Parser for computation expressions
    • PacketEncodingLayer: Conversion between wire format packets and python objects
    • RepositoryLayer: Persistent data storage
  • Logger: Logging helpers
  • Mgmt: Management interface
  • Packets: Wire format helpers
  • Processes: Communication between layers
  • ProgramLibs: Layer compositions (See "Executable" package for starter scripts)
    • Fetch: Simple fetch tool
    • ICNDataRepository: CCN repository
    • ICNForwarder: CCN forwarder
    • NFNForwarder: NFN forwarder
  • Routing: TBD (routing solution should go in here)