scan_file_pure_ruby

#!/usr/bin/env ruby
# coding: utf-8



class Scan_binary
  def readBigBinaryFile(file)
    #    source =NSFileHandle.fileHandleForReadingAtPath(file)
    source=File.open(file,'r')
    buffer_size=4096
    offset=0
    size=File.size(file)
    while ( offset + buffer_size ) <= size
      #      source.seekToFileOffset(offset)
      #      abuffer = source.readDataOfLength(buffer_size)
      source.seek(offset) #PURE-RUBY
      abuffer = source.read( buffer_size )
      abuffer=abuffer.to_s

      offset+=buffer_size
#      @dataPointer ||= Pointer.new(:uchar,4) 
#      abuffer.getBytes(@dataPointer, length: 4)
      # memory leaks very rapidly in GBs if we don't release the buffer…
      # but this relase action will make the application crash once the doSomething lookp is finished
#      abuffer.release
    end
    source.close
    
    return false
  end
end

x=0
my_scan_binary_instance=Scan_binary.new()
while x < 10000
  result=my_scan_binary_instance.readBigBinaryFile("/path/to/some/big/file")
  puts result.to_s
  x+=1
end