Class: Async::HTTP::Body::File

Inherits:
Readable
  • Object
show all
Defined in:
lib/async/http/body/file.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Readable

#close, #each, #stop

Constructor Details

#initialize(path, range = nil, block_size: Async::IO::Stream::BLOCK_SIZE) ⇒ File

Returns a new instance of File.



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# File 'lib/async/http/body/file.rb', line 27

def initialize(path, range = nil, block_size: Async::IO::Stream::BLOCK_SIZE)
	@path = path
	@file = File.open(path)
	
	@block_size = block_size
	
	if range
		@offset = range.min
		@length = @remaining = range.size
	else
		@offset = 0
		@length = @remaining = @file.size
	end
end

Instance Attribute Details

#length ⇒ Object (readonly)

Returns the value of attribute length.



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# File 'lib/async/http/body/file.rb', line 42

def length
  @length
end

Instance Method Details

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/async/http/body/file.rb', line 44

def empty?
	@remaining == 0
end

#inspect ⇒ Object 



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# File 'lib/async/http/body/file.rb', line 70

def inspect
	"\#<#{self.class} path=#{@path} offset=#{@offset} remaining=#{@remaining}>"
end

#join ⇒ Object 



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# File 'lib/async/http/body/file.rb', line 62

def join
	buffer = @file.read(@remaining)
	
	@remaining = 0
	
	return buffer
end

#read ⇒ Object 



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# File 'lib/async/http/body/file.rb', line 48

def read
	if @remaining > 0
		amount = [@remaining, @block_size].min
		
		if chunk = @file.read(amount)
			@remaining -= chunk.bytesize
			
			return chunk
		else
			@file.close
		end
	end
end