Class: Baykit::BayServer::Util::SimpleBuffer

Inherits:
Object
  • Object
show all
Includes:
Reusable
Defined in:
lib/baykit/bayserver/util/simple_buffer.rb

Constant Summary collapse

INITIAL_BUFFER_SIZE = 
32768

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(init = INITIAL_BUFFER_SIZE) ⇒ SimpleBuffer

Returns a new instance of SimpleBuffer.



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# File 'lib/baykit/bayserver/util/simple_buffer.rb', line 15

def initialize(init=INITIAL_BUFFER_SIZE)
  @capacity = init
  @buf = StringUtil.alloc(@capacity)
  @length = 0
end

Instance Attribute Details

#buf ⇒ Object (readonly)

Returns the value of attribute buf.



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# File 'lib/baykit/bayserver/util/simple_buffer.rb', line 11

def buf
  @buf
end

#capacity ⇒ Object (readonly)

Returns the value of attribute capacity.



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# File 'lib/baykit/bayserver/util/simple_buffer.rb', line 13

def capacity
  @capacity
end

#length ⇒ Object (readonly)

Returns the value of attribute length.



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# File 'lib/baykit/bayserver/util/simple_buffer.rb', line 12

def length
  @length
end

Instance Method Details

#bytes ⇒ Object 



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# File 'lib/baykit/bayserver/util/simple_buffer.rb', line 21

def bytes()
  return buf
end

#extend_buf ⇒ Object 



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# File 'lib/baykit/bayserver/util/simple_buffer.rb', line 46

def extend_buf()
  @capacity *= 2
  @buf = StringUtil.realloc(@buf, @capacity)
end

#put(bytes, pos = 0, len = bytes.length) ⇒ Object 



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# File 'lib/baykit/bayserver/util/simple_buffer.rb', line 35

def put(bytes, pos=0, len=bytes.length)
  while @length + len > capacity
    extend_buf
  end

  len.times do |i|
    @buf[@length + i] = bytes[pos + i]
  end
  @length += len
end

#put_byte(b) ⇒ Object 



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# File 'lib/baykit/bayserver/util/simple_buffer.rb', line 31

def put_byte(b)
  put([b], 0, 1);
end

#reset ⇒ Object 



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# File 'lib/baykit/bayserver/util/simple_buffer.rb', line 25

def reset()
  # clear for security reason
  @buf.clear()
  @length = 0
end