Class: Bitcoin::Message::CFilter

Inherits:
Base
  • Object
show all
Defined in:
lib/bitcoin/message/cfilter.rb

Overview

cfilter message for BIP-157 github.com/bitcoin/bips/blob/master/bip-0157.mediawiki#cfilter

Constant Summary collapse

COMMAND = 
'cfilter'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

from_pkt, #to_pkt

Methods included from Util

#byte_to_bit, #calc_checksum, #decode_base58_address, #double_sha256, #encode_base58_address, #hash160, #hkdf_sha256, #hmac_sha256, #pack_boolean, #pack_var_int, #pack_var_string, #padding_zero, #sha256, #tagged_hash, #unpack_boolean, #unpack_var_int, #unpack_var_int_from_io, #unpack_var_string, #valid_address?

Methods included from HexConverter

#to_hex

Constructor Details

#initialize(filter_type, block_hash, filter) ⇒ CFilter

Returns a new instance of CFilter.



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# File 'lib/bitcoin/message/cfilter.rb', line 14

def initialize(filter_type, block_hash, filter)
  @filter_type = filter_type
  @block_hash = block_hash
  @filter = filter
end

Instance Attribute Details

#block_hash ⇒ Object

little endian



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# File 'lib/bitcoin/message/cfilter.rb', line 11

def block_hash
  @block_hash
end

#filter ⇒ Object

little endian



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# File 'lib/bitcoin/message/cfilter.rb', line 12

def filter
  @filter
end

#filter_type ⇒ Object

Returns the value of attribute filter_type.



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# File 'lib/bitcoin/message/cfilter.rb', line 10

def filter_type
  @filter_type
end

Class Method Details

.parse_from_payload(payload) ⇒ Object 



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# File 'lib/bitcoin/message/cfilter.rb', line 20

def self.parse_from_payload(payload)
  buf = StringIO.new(payload)
  type = buf.read(1).unpack1("C")
  hash = buf.read(32).bth
  len = Bitcoin.unpack_var_int_from_io(buf)
  filter = buf.read(len).bth
  self.new(type, hash, filter)
end

Instance Method Details

#to_payload ⇒ Object 



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# File 'lib/bitcoin/message/cfilter.rb', line 29

def to_payload
  [filter_type, block_hash].pack('CH*') + Bitcoin.pack_var_string(filter.htb)
end