Method checkChunk

chunk/manager.go:225–248

(req *Request, response chan Response)

}

func (m *Manager) checkChunk(req *Request, response chan Response) {
	if nil == response {
		if nil == m.storage.Load(req.id) {
			m.downloader.Download(req, nil)
		}
		return
	}

	if bytes := m.storage.Load(req.id); nil != bytes {
		response <- Response{
			Sequence: req.sequence,
			Bytes:    adjustResponseChunk(req, bytes),
		}
		return
	}

	m.downloader.Download(req, func(err error, bytes []byte) {
		response <- Response{
			Sequence: req.sequence,
			Error:    err,
			Bytes:    adjustResponseChunk(req, bytes),
		}
	})
}

func adjustResponseChunk(req *Request, bytes []byte) []byte {
	if nil == bytes {