The NodeOPCUA API The NodeOPCUA API

  • API Docs for Version: 0.5.4

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    ChunkManager Class

    Extends EventEmitter
    Defined in: packages\node-opcua-chunkmanager\src\chunk_manager.js:91
    Module: opcua.miscellaneous

    Constructor

    ChunkManager

    (
    • options
    )

    Defined in packages\node-opcua-chunkmanager\src\chunk_manager.js:91

    Parameters:

    • options Object
      • chunkSize Number
      • [headerSize= 0] Number optional
      • [signatureLength= 0] Number optional
      • [sequenceHeaderSize= 8] Number optional

        size of the sequence header

      • [cipherBlockSize=0] Number optional
      • [plainBlockSize=0] Number optional
      • [compute_signature=null] Function optional
      • [encrypt_buffer] Function optional
      • [writeSequenceHeaderFunc=null] Function optional
      • [writeHeaderFunc] Function optional

    Methods

    _write_signature

    () private

    Defined in packages\node-opcua-chunkmanager\src\chunk_manager.js:171

    compute the signature of the chunk and append it at the end of the data block.

    makeBuffer turn a string make of hexadecimal bytes into a buffer

    (
    • listOfBytes
    )
    Buffer

    Defined in packages\node-opcua-buffer-utils\dist\buffer_utils.js:14

    Parameters:

    • listOfBytes Object

    Returns:

    Buffer:

    Example:

    const buffer = makeBuffer("BE EF");

    write

    (
    • buffer
    • length
    )

    Defined in packages\node-opcua-chunkmanager\src\chunk_manager.js:253

    Parameters:

    • buffer Buffer
    • length Number

    Events

    chunk

    Defined in packages\node-opcua-chunkmanager\src\chunk_manager.js:242

    Event Payload:

    • chunk Buffer
    • isLast Boolean

      , true if final chunk