Class: Bitcoin::Wallet::DB

Inherits:
Object show all
Defined in:
lib/bitcoin/wallet/db.rb

Constant Summary collapse

KEY_PREFIX = 
{
    account: 'a',       # key: account index, value: Account raw data.
    master: 'm',        # value: wallet seed.
    version: 'v',       # value: wallet version
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path = "#{Bitcoin.base_dir}/db/wallet") ⇒ DB

Returns a new instance of DB.



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# File 'lib/bitcoin/wallet/db.rb', line 15

def initialize(path = "#{Bitcoin.base_dir}/db/wallet")
  FileUtils.mkdir_p(path)
  @level_db = ::LevelDB::DB.new(path)
end

Instance Attribute Details

#level_db ⇒ Object (readonly)

Returns the value of attribute level_db.



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# File 'lib/bitcoin/wallet/db.rb', line 12

def level_db
  @level_db
end

#master_key ⇒ Object

get master_key



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# File 'lib/bitcoin/wallet/db.rb', line 41

def master_key
  @master_key
end

Instance Method Details

#accounts ⇒ Object

get accounts raw data.



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# File 'lib/bitcoin/wallet/db.rb', line 26

def accounts
  from = KEY_PREFIX[:account] + '00000000'
  to = KEY_PREFIX[:account] + 'ffffffff'
  level_db.each(from: from, to: to).map { |k, v| v}
end

#close ⇒ Object

close database



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# File 'lib/bitcoin/wallet/db.rb', line 21

def close
  level_db.close
end

#register_master_key(master) ⇒ Object

save seed

Parameters:



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# File 'lib/bitcoin/wallet/db.rb', line 47

def register_master_key(master)
  level_db.put(KEY_PREFIX[:master], master.to_payload)
  level_db.put(KEY_PREFIX[:version], Bitcoin::Wallet::Base::VERSION.to_s)
  @master_key = master
end

#registered_master? ⇒ Boolean

whether master key registered.

Returns:

  • (Boolean) 


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# File 'lib/bitcoin/wallet/db.rb', line 54

def registered_master?
  !level_db.get(KEY_PREFIX[:master]).nil?
end

#save_account(account) ⇒ Object 



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# File 'lib/bitcoin/wallet/db.rb', line 32

def ()
  level_db.batch do
    id = [.purpose, .index].pack('I*').bth
    key = KEY_PREFIX[:account] + id
    level_db.put(key, .to_payload)
  end
end

#version ⇒ Object

wallet version



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# File 'lib/bitcoin/wallet/db.rb', line 59

def version
  level_db.get(KEY_PREFIX[:version]).to_i
end