Method: Rubcask::DataFile#pread

Defined in:

lib/rubcask/data_file.rb

#pread(offset, size) ⇒ DataEntry^?

Note:

Calling this method will not change ‘pos` of the `file`

Fetch an entry at given offset and with provided size

Parameters:

• offset (Integer) —

  File offset in bytes

• size (Integer) —

  Entry size in bytes

Returns:

• (DataEntry)
• (nil) —

  if at the end of file

Raises:

• (ChecksumError) —

  if the entry has an incorrect checksum

# File 'lib/rubcask/data_file.rb', line 81

def pread(offset, size)
  read_from_io(StringIO.new(@file.pread(size, offset)))
end