Add optimized IO methods #55

Original file line number	Diff line number	Diff line change
Expand Up		@@ -255,6 +255,22 @@ function write(s::StringEncoder, x::UInt8)
		1
		end

	# Optimized IO implementation
	function Base.unsafe_write(s::StringEncoder, p::Ptr{UInt8}, n::UInt)
	bytes = unsafe_wrap(Array, p, n)
	written = 0
	while n > 0
	if s.inbytesleft[] >= length(s.inbuf)
	flush(s)
	end
	chunksize = min(n, length(s.inbuf) - s.inbytesleft[])
	copyto!(s.inbuf, s.inbytesleft[]+1, bytes, written+1, chunksize)
	s.inbytesleft[] += chunksize
	written += chunksize
	n -= chunksize
	end
	return written
	end

		## StringDecoder

Expand Down Expand Up		@@ -428,6 +444,12 @@ function readbytes!(s::StringDecoder, b::AbstractArray{UInt8}, nb=length(b))
		return nr
		end

	# Optimized IO implementation
	function Base.unsafe_read(s::StringDecoder, p::Ptr{UInt8}, n::UInt)
	readbytes!(s, unsafe_wrap(Array, p, n))
	nothing
	end

		"""
		read(stream::IO, [nb::Integer,] enc::Encoding)
		read(filename::AbstractString, [nb::Integer,] enc::Encoding)
Expand Down

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