case class NetworkHeader(network: NetworkParameters, commandName: String, payloadSize: UInt32, checksum: ByteVector) extends NetworkElement with Product with Serializable

Represents a message header on the peer-to-peer network

network

Each network has magic bytes indicating the originating network; used to seek to next message when stream state is unknown.

commandName

ASCII string which identifies what message type is contained in the payload. Followed by nulls (0x00) to pad out byte count; for example: version\0\0\0\0\0.

payloadSize

Number of bytes in payload. The current maximum number of bytes (MAX_SIZE) allowed in the payload by Bitcoin Core is 32 MiB—messages with a payload size larger than this will be dropped or rejected.

checksum

Added in protocol version 209. First 4 bytes of SHA256(SHA256(payload)) in internal byte order. If payload is empty, as in verack and getaddr messages, the checksum is always 0x5df6e0e2 (SHA256(SHA256(""))).

See also

https://bitcoin.org/en/developer-reference#message-headers

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  1. NetworkHeader
  2. Serializable
  3. Product
  4. Equals
  5. NetworkElement
  6. AnyRef
  7. Any
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Visibility
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  2. Protected

Instance Constructors

  1. new NetworkHeader(network: NetworkParameters, commandName: String, payloadSize: UInt32, checksum: ByteVector)

    network

    Each network has magic bytes indicating the originating network; used to seek to next message when stream state is unknown.

    commandName

    ASCII string which identifies what message type is contained in the payload. Followed by nulls (0x00) to pad out byte count; for example: version\0\0\0\0\0.

    payloadSize

    Number of bytes in payload. The current maximum number of bytes (MAX_SIZE) allowed in the payload by Bitcoin Core is 32 MiB—messages with a payload size larger than this will be dropped or rejected.

    checksum

    Added in protocol version 209. First 4 bytes of SHA256(SHA256(payload)) in internal byte order. If payload is empty, as in verack and getaddr messages, the checksum is always 0x5df6e0e2 (SHA256(SHA256(""))).

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def bytes: ByteVector

    The byte representation of the NetworkElement

    The byte representation of the NetworkElement

    Definition Classes
    NetworkHeaderNetworkElement
  6. def bytesLE: ByteVector

    The byte representation of the NetworkElement in little endian

    The byte representation of the NetworkElement in little endian

    Definition Classes
    NetworkElement
  7. val checksum: ByteVector
  8. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  9. val commandName: String
  10. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  11. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  12. def hex: String

    The hexadecimal representation of the NetworkElement

    The hexadecimal representation of the NetworkElement

    Definition Classes
    NetworkElement
  13. def hexLE: String

    The hexadecimal representation of the NetworkElement in little endian

    The hexadecimal representation of the NetworkElement in little endian

    Definition Classes
    NetworkElement
  14. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  15. def logger: Logger
    Definition Classes
    NetworkElement
  16. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. val network: NetworkParameters
  18. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  19. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  20. val payloadSize: UInt32
  21. def productElementNames: Iterator[String]
    Definition Classes
    Product
  22. def size: Long

    The size of the NetworkElement in bytes.

    The size of the NetworkElement in bytes.

    Definition Classes
    NetworkElement
  23. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  24. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  25. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  26. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated @deprecated
    Deprecated

    (Since version ) see corresponding Javadoc for more information.

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from NetworkElement

Inherited from AnyRef

Inherited from Any

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