package needle type AsyncRequest struct { N *Needle IsWriteRequest bool ActualSize int64 Fsync bool offset uint64 size uint64 doneChan chan interface{} isUnchanged bool err error } func NewAsyncRequest(n *Needle, isWriteRequest bool, fsync bool) *AsyncRequest { return &AsyncRequest{ offset: 0, size: 0, ActualSize: 0, doneChan: make(chan interface{}), N: n, isUnchanged: false, IsWriteRequest: isWriteRequest, Fsync: fsync, err: nil, } } func (r *AsyncRequest) WaitComplete() (uint64, uint64, bool, error) { <-r.doneChan return r.offset, r.size, r.isUnchanged, r.err } func (r *AsyncRequest) Complete(offset uint64, size uint64, isUnchanged bool, err error) { r.offset = offset r.size = size r.isUnchanged = isUnchanged r.err = err close(r.doneChan) } func (r *AsyncRequest) UpdateResult(offset uint64, size uint64, isUnchanged bool, err error) { r.offset = offset r.size = size r.isUnchanged = isUnchanged r.err = err } func (r *AsyncRequest) Submit() { close(r.doneChan) } func (r *AsyncRequest) IsSucceed() bool { return r.err == nil }