Class: HTTP2::Buffer

Inherits:

String

• Object
• String
• HTTP2::Buffer

Defined in:

lib/http/2/buffer.rb

Overview

Simple binary buffer backed by string.

Instance Method Summary

• #getbyte ⇒ Object

  Emulate StringIO#getbyte: slice first byte from buffer.

• #initialize ⇒ Buffer constructor

  Forces binary encoding on the string.

• #read(n) ⇒ Object

  Emulate StringIO#read: slice first n bytes from the buffer.

• #read_uint32 ⇒ Integer

  Slice unsigned 32-bit integer from buffer.

• #readbyte ⇒ Object

  Alias getbyte to readbyte.

Constructor Details

#initialize ⇒ Buffer

Forces binary encoding on the string

# File 'lib/http/2/buffer.rb', line 9

def initialize(*)
  super.force_encoding(Encoding::BINARY)
end

Instance Method Details

#getbyte ⇒ Object

Emulate StringIO#getbyte: slice first byte from buffer.

# File 'lib/http/2/buffer.rb', line 24

def getbyte
  read(1).ord
end

#read(n) ⇒ Object

Emulate StringIO#read: slice first n bytes from the buffer.

Parameters:

• n (Integer) —

  number of bytes to slice from the buffer

# File 'lib/http/2/buffer.rb', line 16

def read(n)
  Buffer.new(slice!(0, n))
end

#read_uint32 ⇒ Integer

Slice unsigned 32-bit integer from buffer.

Returns:

• (Integer)

# File 'lib/http/2/buffer.rb', line 30

def read_uint32
  read(4).unpack(UINT32).first
end

#readbyte ⇒ Object

Alias getbyte to readbyte

# File 'lib/http/2/buffer.rb', line 21

alias_method :readbyte, :getbyte