Method readBinary

nocopy_linkbuffer.go:321–346

readBinary cannot use mcache, because the memory allocated by readBinary will not be recycled.

(n int)

// readBinary cannot use mcache, because the memory allocated by readBinary will not be recycled.
func (b *UnsafeLinkBuffer) readBinary(n int) (p []byte) {
	b.recalLen(-n) // re-cal length

	// single node
	if b.isSingleNode(n) {
		p = dirtmake.Bytes(n, n)
		copy(p, b.read.Next(n))
		return p
	}
	p = dirtmake.Bytes(n, n)
	// multiple nodes
	var pIdx int
	var l int
	for ack := n; ack > 0; ack = ack - l {
		l = b.read.Len()
		if l >= ack {
			pIdx += copy(p[pIdx:], b.read.Next(ack))
			break
		} else if l > 0 {
			pIdx += copy(p[pIdx:], b.read.Next(l))
		}
		b.read = b.read.next
	}
	_ = pIdx
	return p
}

// ReadByte implements Reader.
func (b *UnsafeLinkBuffer) ReadByte() (p byte, err error) {